Human foreskin keratinocytes in vitro metabolize 25-hydroxyvitamin D3 to a number of metabolites, including 1,25-dihydroxyvitamin D3 (1,25(OH)2D3). This metabolite remains mostly within the cell and does not accumulate in the medium under the conditions of these experiments. With time, 1,25(OH)2D3 is catabolized, and more polar metabolites appear in both the cells and the medium. The production of 1,25(OH)2D3 has an apparent Michaelis constant (Km) for 25-hydroxyvitamin D3 of 5.4 X 10(-8) M. The levels of 1,25(OH)2D3 within the cell are increased both by increased production and decreased catabolism when parathyroid hormone(1-34) and isobutylmethylxanthine are added. Exogenously added 1,25(OH)2D3 at concentrations as low as 10(-12) M reduces endogenous 1,25(OH)2D3 production, increases 1,25(OH)2D3 catabolism, and increases 24,25-dihydroxyvitamin D3 production by an actinomycin D-sensitive process. These data indicate that the regulation of 1,25(OH)2D3 production by keratinocytes is similar to, but not identical to the regulation of 1,25(OH)2D3 by the kidney.
D D Bikle, M K Nemanic, E Gee, P Elias
Title and authors | Publication | Year |
---|---|---|
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Zhang K, Yin Y, Lv M, Zhang X, Zhang M, Cui J, Guan Z, Liu X, Liu Y, Gao Y, Yang Y |
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Ødum AF, Geisler C |
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Zhang P, Yang J, Liu X, Huang C, Tao Y, Shen P, Bai Z, Xiao C, Zhou L, Li G, Zhang L, Zhou W, Gao Y |
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De Silva WGM, McCarthy BY, Han J, Yang C, Holland AJA, Stern H, Dixon KM, Tang EKY, Tuckey RC, Rybchyn MS, Mason RS |
Metabolites | 2023 |
Vitamin D Signaling in Psoriasis: Pathogenesis and Therapy.
Brożyna AA, Slominski RM, Nedoszytko B, Zmijewski MA, Slominski AT |
International journal of molecular sciences | 2022 |
Bovine Immunity and Vitamin D3: An Emerging Association in Johne's Disease.
Wherry TLT, Stabel JR |
Microorganisms | 2022 |
Oral and Topical Vitamin D, Sunshine, and UVB Phototherapy Safely Control Psoriasis in Patients with Normal Pretreatment Serum 25-Hydroxyvitamin D Concentrations: A Literature Review and Discussion of Health Implications
PJ McCullough, WP McCullough, D Lehrer, JB Travers, SJ Repas |
Nutrients | 2021 |
Topical Application of Vitamin D3-Loaded Hybrid Nanosystem to Offset Imiquimod-Induced Psoriasis
SS Pukale, A Mittal, D Chitkara |
AAPS PharmSciTech | 2021 |
Vitamin D receptor and 1α-hydroxylase are highly expressed in lungs of mice infected with H9N2 avian influenza viruses
P Lian, Y Bai, J Li, H Wang, X Niu, Z Zhang, H Li, L Zhao, J Qiao |
The Journal of Steroid Biochemistry and Molecular Biology | 2021 |
Breastfeeding and vitamin D.
Heo JS, Ahn YM, Kim AE, Shin SM |
2021 | |
A mouse model for vitamin D-induced human cathelicidin antimicrobial peptide gene expression
MB Lowry, C Guo, Y Zhang, ML Fantacone, IE Logan, Y Campbell, W Zhang, M Le, AK Indra, G Ganguli-Indra, J Xie, RL Gallo, HP Koeffler, AF Gombart |
The Journal of Steroid Biochemistry and Molecular Biology | 2020 |
Sunlight, Vitamin D and Skin Cancer
J Reichrath |
2020 | |
Sunlight, Vitamin D and Skin Cancer
J Reichrath |
2020 | |
Sunlight, Vitamin D and Skin Cancer
J Reichrath |
2020 | |
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J Reichrath |
2020 | |
Sunlight, Vitamin D and Skin Cancer
J Reichrath |
2020 | |
Repurposing the psoriasis drug Oxarol to an ointment adjuvant for the influenza vaccine
R Sato, C Makino-Okamura, Q Lin, M Wang, JE Shoemaker, T Kurosaki, H Fukuyama |
International Immunology | 2020 |
Multiple Sclerosis: Lipids, Lymphocytes, and Vitamin D.
Hayes CE, Ntambi JM |
Immunometabolism | 2020 |
Awareness of Vitamin D Deficiency among the General Population in Jeddah, Saudi Arabia
LH Alamoudi, RZ Almuteeri, ME Al-Otaibi, DA Alshaer, SK Fatani, MM Alghamdi, OY Safdar |
Journal of nutrition and metabolism | 2019 |
Assessing the Effect of Vitamin D Replacement on Basal Cell Carcinoma Occurrence and Recurrence Rates in Patients with Vitamin D Deficiency
B Ince, ME Yildirim, M Dadaci |
Hormones and Cancer | 2019 |
UV increases skin-derived 1α,25-dihydroxyvitamin D3 production, leading to MMP-1 expression by altering the balance of vitamin D and cholesterol synthesis from 7-dehydrocholesterol
MH Shin, Y Lee, MK Kim, DH Lee, JH Chung |
The Journal of Steroid Biochemistry and Molecular Biology | 2019 |
Physiologic and pathophysiologic roles of extra renal CYP27b1: Case report and review
DD Bikle, S Patzek, Y Wang |
Bone Reports | 2018 |
Vitamin D and kidney disease
L Keung, F Perwad |
Bone Reports | 2018 |
Does the environment influence multiple sclerosis pathogenesis via UVB light and/or induction of vitamin D?
J Breuer, K Loser, N Mykicki, H Wiendl, N Schwab |
Journal of Neuroimmunology | 2018 |
Vitamin D receptor polymorphisms and melanoma (Review)
A Vasilovici, L Grigore, L Ungureanu, O Fechete, E Candrea, A Trifa, S Vișan, S Șenilă, R Cosgarea |
Oncology Letters | 2018 |
Vitamin D Assays.
Bikle DD |
Frontiers of hormone research | 2018 |
Ultraviolet Light in Human Health, Diseases and Environment
SI Ahmad |
Ultraviolet Light in Human Health, Diseases and Environment | 2017 |
Ultraviolet Light in Human Health, Diseases and Environment
SI Ahmad |
Ultraviolet Light in Human Health, Diseases and Environment | 2017 |
Role of Vitamin D in Maintaining Renal Epithelial Barrier Function in Uremic Conditions
M Mihajlovic, M Fedecostante, M Oost, S Steenhuis, E Lentjes, I Maitimu-Smeele, M Janssen, L Hilbrands, R Masereeuw |
International journal of molecular sciences | 2017 |
Vitamin D metabolites in captivity? Should we measure free or total 25(OH)D to assess vitamin D status?
D Bikle, R Bouillon, R Thadhani, I Schoenmakers |
The Journal of Steroid Biochemistry and Molecular Biology | 2017 |
Calcitriol regulates immune genes CD14 and CD180 to modulate LPS responses in human trophoblasts
MS Longtine, S Cvitic, BN Colvin, B Chen, G Desoye, DM Nelson |
Reproduction | 2017 |
Vitamin D Prevents Sunburn: Tips for the Summer?
DD Bikle |
Journal of Investigative Dermatology | 2017 |
Examination of VDR/RXR/DRIP205 Interaction, Intranuclear Localization, and DNA Binding in Ras-Transformed Keratinocytes and Its Implication for Designing Optimal Vitamin D Therapy in Cancer
S Jusu, JF Presley, C Williams, SK Das, B Jean-Claude, R Kremer |
Endocrinology | 2017 |
Low vitamin D-modulated calcium-regulating proteins in psoriasis vulgaris plaques: S100A7 overexpression depends on joint involvement
S Cubillos, J Norgauer |
International journal of molecular medicine | 2016 |
Disruption of Vitamin D and Calcium Signaling in Keratinocytes Predisposes to Skin Cancer
DD Bikle, Y Jiang, T Nguyen, Y Oda, C Tu |
Frontiers in physiology | 2016 |
Genetic disorders of Vitamin D biosynthesis and degradation
WL Miller |
The Journal of Steroid Biochemistry and Molecular Biology | 2016 |
Inborn Metabolic Diseases
JM Saudubray, MR Baumgartner, J Walter |
Inborn Metabolic Diseases | 2016 |
Vitamin D Actions on CD4+ T Cells in Autoimmune Disease
CE Hayes, SL Hubler, JR Moore, LE Barta, CE Praska, FE Nashold |
Frontiers in immunology | 2015 |
On the role of skin in the regulation of local and systemic steroidogenic activities
AT Slominski, PR Manna, RC Tuckey |
Steroids | 2015 |
Activation of Vitamin D Regulates Response of Human Bronchial Epithelial Cells to Aspergillus fumigatus in an Autocrine Fashion
P Li, T Wu, X Su, Y Shi |
Mediators of Inflammation | 2015 |
Admission vitamin D status is associated with discharge destination in critically ill surgical patients
K Brook, CA Camargo, KB Christopher, SA Quraishi |
Annals of Intensive Care | 2015 |
Antitumor Effects of Vitamin D Analogs on Hamster and Mouse Melanoma Cell Lines in Relation to Melanin Pigmentation
T Wasiewicz, P Szyszka, M Cichorek, Z Janjetovic, R Tuckey, A Slominski, M Zmijewski |
International journal of molecular sciences | 2015 |
Pediatric Nephrology
ED Avner, WE Harmon, P Niaudet, N Yoshikawa, F Emma, S Goldstein |
Pediatric Nephrology | 2015 |
The role of nuclear hormone receptors in cutaneous wound repair: NUCLEAR RECEPTORS AND WOUND REPAIR
S Rieger, H Zhao, P Martin, K Abe, TS Lisse |
Cell Biochemistry and Function | 2014 |
Novel activities of CYP11A1 and their potential physiological significance
AT Slominski, W Li, TK Kim, I Semak, J Wang, JK Zjawiony, RC Tuckey |
The Journal of Steroid Biochemistry and Molecular Biology | 2014 |
Vitamin D Metabolism, Mechanism of Action, and Clinical Applications
DD Bikle |
Chemistry & Biology | 2014 |
Vitamin D receptor, a tumor suppressor in skin 1
DD Bikle |
Canadian Journal of Physiology and Pharmacology | 2014 |
Effect of Vitamin D Receptor Knockout on Cornea Epithelium Wound Healing and Tight Junctions
RA Elizondo, Z Yin, X Lu, MA Watsky |
Investigative ophthalmology & visual science | 2014 |
The Vitamin D Receptor as Tumor Suppressor in Skin
Bikle DD |
Advances in experimental medicine and biology | 2014 |
In vivo production of novel vitamin D2 hydroxy-derivatives by human placentas, epidermal keratinocytes, Caco-2 colon cells and the adrenal gland
AT Slominski, TK Kim, HZ Shehabi, EK Tang, HA Benson, I Semak, Z Lin, CR Yates, J Wang, W Li, RC Tuckey |
Molecular and Cellular Endocrinology | 2014 |
Anti-proliferative activity of 25-hydroxyvitamin D3 in human prostate cells
E Munetsuna, R Kawanami, M Nishikawa, S Ikeda, S Nakabayashi, K Yasuda, M Ohta, M Kamakura, S Ikushiro, T Sakaki |
Molecular and Cellular Endocrinology | 2014 |
Vitamin D and Skin Cancer
EM Burns, CA Elmets, N Yusuf |
Photochemistry and Photobiology | 2014 |
Cytochromes P450 and Skin Cancer: Role of Local Endocrine Pathways
Andrzej T. Slominski, Michal A. Zmijewski, Igor Semak, Blazej Zbytek, Alexander Pisarchik, Wei Li, Jordan Zjawiony, Robert C. Tuckey |
Anti-cancer agents in medicinal chemistry | 2014 |
Pathogenesis and Treatment of Acne and Rosacea
CC Zouboulis, AD Katsambas, AM Kligman |
2014 | |
FGF-23 Regulates CYP27B1 Transcription in the Kidney and in Extra-Renal Tissues
A Chanakul, MY Zhang, A Louw, HJ Armbrecht, WL Miller, AA Portale, F Perwad, JC Dussaule |
PloS one | 2013 |
Vitamin D metabolism in human bone marrow stromal (mesenchymal stem) cells
S Geng, S Zhou, Z Bi, J Glowacki |
Metabolism | 2013 |
Genetics of Bone Biology and Skeletal Disease
CS Kovacs |
Genetics of Bone Biology and Skeletal Disease | 2013 |
Seldin and Giebisch's The Kidney
CJ Cooper, LD Dworkin, WL Henrich |
Seldin and Giebisch's The Kidney | 2013 |
Extraskeletal effects and manifestations of Vitamin D deficiency
RK Visweswaran, H Lekha |
Indian journal of endocrinology and metabolism | 2013 |
The Effect of Chrysin on the Transcriptional Activity of Vitamin D Receptor in Human Keratinocytes
JH Choo, SH Lee |
Journal of the Society of Cosmetic Scientists of Korea | 2013 |
PTH/PTHrP and Vitamin D Control Antimicrobial Peptide Expression and Susceptibility to Bacterial Skin Infection
B Muehleisen, DD Bikle, C Aguilera, DW Burton, GL Sen, LJ Deftos, RL Gallo |
Science Translational Medicine | 2012 |
Protective actions of vitamin D in UVB induced skin cancer
DD Bikle |
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology | 2012 |
Rickets Due to Hereditary Abnormalities of Vitamin D Synthesis or Action
AA Portale, F Perwad, WL Miller |
Pediatric Bone | 2012 |
Pediatric Bone
M Bastepe, H Jüppner, RV Thakker |
Pediatric Bone | 2012 |
Extraskeletal Effects of Vitamin D
H Wolden-Kirk, C Gysemans, A Verstuyf, C Mathieu |
Endocrinology and metabolism clinics of North America | 2012 |
Opening of Chloride Channels by 1α,25-Dihydroxyvitamin D3 Contributes to Photoprotection against UVR-Induced Thymine Dimers in Keratinocytes
VB Sequeira, MS Rybchyn, C Gordon-Thomson, W Tongkao-on, MT Mizwicki, AW Norman, VE Reeve, GM Halliday, RS Mason |
Journal of Investigative Dermatology | 2012 |
Sinonasal epithelial cells synthesize active vitamin D, augmenting host innate immune function: Vitamin D augments sinonasal innate immunity
B Sultan, M Ramanathan, J Lee, L May, AP Lane |
International Forum of Allergy & Rhinology | 2012 |
1α,25-Dihydroxyvitamin D3 reduces several types of UV-induced DNA damage and contributes to photoprotection
EJ Song, C Gordon-Thomson, L Cole, H Stern, GM Halliday, DL Damian, VE Reeve, RS Mason |
The Journal of Steroid Biochemistry and Molecular Biology | 2012 |
Expression of the vitamin D-activating enzyme 1α-hydroxylase (CYP27B1) decreases during melanoma progression
AA Brożyna, W Jóźwicki, Z Janjetovic, AT Slominski |
Human Pathology | 2012 |
Activity of 25-Hydroxylase in Human Gingival Fibroblasts and Periodontal Ligament Cells
K Liu, H Meng, J Hou, AT Slominski |
PloS one | 2012 |
Vitamin D and the Lung
AA Litonjua |
2012 | |
Vitamin D metabolism and function in the skin
DD Bikle |
Molecular and Cellular Endocrinology | 2011 |
Vitamin D metabolism in the kidney: Regulation by phosphorus and fibroblast growth factor 23
F Perwad, AA Portale |
Molecular and Cellular Endocrinology | 2011 |
Metabolism of cholesterol, vitamin D3 and 20-hydroxyvitamin D3 incorporated into phospholipid vesicles by human CYP27A1
EW Tieu, W Li, J Chen, DM Baldisseri, AT Slominski, RC Tuckey |
The Journal of Steroid Biochemistry and Molecular Biology | 2011 |
Expression of vitamin D receptor (VDR) decreases during progression of pigmented skin lesions
AA Brożyna, W Jozwicki, Z Janjetovic, AT Slominski |
Human Pathology | 2011 |
Vitamin D analogs in the treatment of psoriasis
L Trémezaygues, J Reichrath |
Dermato-endocrinology | 2011 |
Extrarenal 1α-Hydroxylase
M Hewison, JS Adams |
Vitamin D | 2011 |
Sunlight Protection by Vitamin D Compounds
RS Mason, KM Dixon, VB Sequeira, C Gordon-Thomson |
Vitamin D | 2011 |
Vitamin D analogs in the treatment of psoriasis: Where are we standing and where will we be going?
L Trémezaygues, J Reichrath |
Dermato-endocrinology | 2011 |
20-Hydroxyvitamin D 2 is a noncalcemic analog of vitamin D with potent antiproliferative and prodifferentiation activities in normal and malignant cells
AT Slominski, TK Kim, Z Janjetovic, RC Tuckey, R Bieniek, J Yue, W Li, J Chen, MN Nguyen, EK Tang, D Miller, TC Chen, M Holick |
American journal of physiology. Cell physiology | 2011 |
Nutrition and Skin
A Pappas |
2011 | |
Vitamin D metabolism
B Lehmann, M Meurer |
Dermatologic Therapy | 2010 |
Bioactive Foods and Extracts
A Teichert, D Bikle |
Bioactive Foods and Extracts | 2010 |
Topical treatment with the vitamin D analogue calcipotriol enhances the upregulation of the antimicrobial protein hCAP18/LL-37 during wounding in human skinin vivo
JD Heilborn, G Weber, A Grönberg, C Dieterich, M Ståhle |
Experimental Dermatology | 2010 |
Products of vitamin D3 or 7-dehydrocholesterol metabolism by cytochrome P450scc show anti-leukemia effects, having low or absent calcemic activity
AT Slominski, Z Janjetovic, BE Fuller, MA Zmijewski, RC Tuckey, MN Nguyen, T Sweatman, W Li, J Zjawiony, D Miller, TC Chen, G Lozanski, MF Holick |
PloS one | 2010 |
Vitamin D status in psoriasis patients during different treatments with phototherapy
A Osmancevic, K Landin-Wilhelmsen, O Larkö, AL Krogstad |
Journal of Photochemistry and Photobiology B Biology | 2010 |
Photoprotection by 1α,25-dihydroxyvitamin D and analogs: Further studies on mechanisms and implications for UV-damage
RS Mason, VB Sequeira, KM Dixon, C Gordon-Thomson, K Pobre, A Dilley, MT Mizwicki, AW Norman, D Feldman, GM Halliday, VE Reeve |
The Journal of Steroid Biochemistry and Molecular Biology | 2010 |
Metabolism of substrates incorporated into phospholipid vesicles by mouse 25-hydroxyvitamin D3 1α-hydroxylase (CYP27B1)
EK Tang, KJ Voo, MN Nguyen, RC Tuckey |
The Journal of Steroid Biochemistry and Molecular Biology | 2010 |
Signaling Pathways in Squamous Cancer
AB Glick, CV Waes |
2010 | |
Purified Mouse CYP27B1 Can Hydroxylate 20,23-Dihydroxyvitamin D 3 , Producing 1α,20,23-Trihydroxyvitamin D 3 , Which Has Altered Biological Activity
EK Tang, W Li, Z Janjetovic, MN Nguyen, Z Wang, A Slominski, RC Tuckey |
Drug Metabolism and Disposition | 2010 |
Zur Bedeutung des Vitamin-D-Stoffwechsels in der humanen Haut: Eine aktuelle Standortbestimmung
L Trémezaygues, J Reichrath |
Der Hautarzt | 2010 |
TGF-β2is specifically expressed in human dermal papilla cells and modulates hair folliculogenesis
K Inoue, N Aoi, Y Yamauchi, T Sato, H Suga, H Eto, H Kato, Y Tabata, K Yoshimura |
Journal of Cellular and Molecular Medicine | 2009 |
Vitamin D and immune function: Understanding common pathways
DD Bikle |
Current Osteoporosis Reports | 2009 |
20,23-dihydroxyvitamin D3, novel P450scc product, stimulates differentiation and inhibits proliferation and NF-κB activity in human keratinocytes
Z Janjetovic, RC Tuckey, MN Nguyen, EM Thorpe, AT Slominski |
Journal of Cellular Physiology | 2009 |
Extra Renal Synthesis of 1,25-dihydroxyvitamin D and its Health Implications
DD Bikle |
Clinical Reviews in Bone and Mineral Metabolism | 2009 |
Role of the vitamin D3pathway in healthy and diseased skin - facts, contradictions and hypotheses
B Lehmann |
Experimental Dermatology | 2009 |
Ageing and vitamin D deficiency: effects on calcium homeostasis and considerations for vitamin D supplementation
C Oudshoorn, TJ van der Cammen, ME McMurdo, JP van Leeuwen, EM Colin |
British Journal of Nutrition | 2009 |
Seasonal Variation of Maternal Serum Vitamin D in Newfoundland and Labrador
S Sloka, J Stokes, E Randell, LA Newhook |
Journal of Obstetrics and Gynaecology Canada | 2009 |
20-Hydroxyvitamin D3, a Product of Vitamin D3 Hydroxylation by Cytochrome P450scc, Stimulates Keratinocyte Differentiation
B Zbytek, Z Janjetovic, RC Tuckey, MA Zmijewski, TW Sweatman, E Jones, MN Nguyen, AT Slominski |
Journal of Investigative Dermatology | 2008 |
Respiratory Epithelial Cells Convert Inactive Vitamin D to Its Active Form: Potential Effects on Host Defense
S Hansdottir, MM Monick, SL Hinde, N Lovan, DC Look, GW Hunninghake |
Journal of immunology (Baltimore, Md. : 1950) | 2008 |
Contemporary Diagnosis and Treatment of Vitamin D-Related Disorders
G Jones, R Horst, G Carter, HL Makin |
Journal of Bone and Mineral Research | 2007 |
Sequential regulation of keratinocyte differentiation by 1,25(OH)2D3, VDR, and its coregulators
D Bikle, A Teichert, N Hawker, Z Xie, Y Oda |
The Journal of Steroid Biochemistry and Molecular Biology | 2007 |
Hairless Suppresses Vitamin D Receptor Transactivation in Human Keratinocytes
Z Xie, S Chang, Y Oda, DD Bikle |
Endocrinology | 2006 |
UVB-induced production of 1,25-dihydroxyvitamin D3 and vitamin D activity in human keratinocytes pretreated with a sterol Δ7-reductase inhibitor
K Vantieghem, AM Kissmeyer, PD Haes, R Bouillon, S Segaert |
Journal of Cellular Biochemistry | 2006 |
Vitamin D: Its role in cancer prevention and treatment
MF Holick |
Progress in Biophysics and Molecular Biology | 2006 |
Altered vitamin D metabolism in type II diabetic mouse glomeruli may provide protection from diabetic nephropathy
Y Wang, J Zhou, AW Minto, BK Hack, JJ Alexander, M Haas, YC Li, CW Heilig, RJ Quigg |
Kidney International | 2006 |
UVB-induced 1,25(OH)2D3 production and vitamin D activity in intestinal CaCo-2 cells and in THP-1 macrophages pretreated with a sterol Δ7-reductase inhibitor
K Vantieghem, L Overbergh, G Carmeliet, PD Haes, R Bouillon, S Segaert |
Journal of Cellular Biochemistry | 2006 |
Wavelength-Dependent Induction of CYP24A1-mRNA after UVB-Triggered Calcitriol Synthesis in Cultured Human Keratinocytes
M Bär, D Domaschke, A Meye, B Lehmann, M Meurer |
Journal of Investigative Dermatology | 2006 |
Dermal fibroblasts pretreated with a sterol Δ7-reductase inhibitor produce 25-hydroxyvitamin D3 upon UVB irradiation
K Vantieghem, PD Haes, R Bouillon, S Segaert |
Journal of Photochemistry and Photobiology B Biology | 2006 |
Prostaglandin E1 Increases in vivo and in vitro calcitriol biosynthesis in rabbits
F Velásquez-Forero, P García, JT Triffitt, F Llach |
Prostaglandins, Leukotrienes and Essential Fatty Acids | 2006 |
Evidence for auto/paracrine actions of vitamin D in bone: 1α-hydroxylase expression and activity in human bone cells
M van Driel, M Koedam, CJ Buurman, M Hewison, H Chiba, AG Uitterlinden, HA Pols, JP van Leeuwen |
The FASEB Journal | 2006 |
VITAMIN D IN HEALTH AND DISEASE: Vitamin D for Health and in Chronic Kidney Disease
MF Holick |
Seminars in Dialysis | 2005 |
Vitamin D status, seasonal variations, parathyroid adenoma weight and bone mineral density in primary hyperparathyroidism
B Moosgaard, P Vestergaard, L Heickendorff, F Melsen, P Christiansen, L Mosekilde |
Clinical Endocrinology | 2005 |
The Vitamin D3 Pathway in Human Skin and its Role for Regulation of Biological Processes
B Lehmann |
Photochemistry and Photobiology | 2005 |
Ultraviolet Radiation, Vitamin D and Risk of Prostate Cancer and Other Diseases
SJ Moon, AA Fryer, RC Strange |
Photochemistry and Photobiology | 2005 |
CYP27B1 null mice with LacZreporter gene display no 25-hydroxyvitamin D3-1alpha-hydroxylase promoter activity in the skin
JL Vanhooke, JM Prahl, C Kimmel-Jehan, M Mendelsohn, EW Danielson, KD Healy, HF DeLuca |
Proceedings of the National Academy of Sciences | 2005 |
Skin Barrier
D Bikle |
Skin Barrier | 2005 |
The Vitamin D Epidemic and its Health Consequences
MF Holick |
The Journal of nutrition | 2005 |
Dermatologie und Venerologie
O Braun-Falco, G Plewig, HH Wolff, WH Burgdorf, M Landthaler |
2005 | |
Cytochrome P450
PR de Montellano |
Cytochrome P450 | 2005 |
Calcium and 1,25(OH)2D: interacting drivers of epidermal differentiation
DD Bikle, Y Oda, Z Xie |
The Journal of Steroid Biochemistry and Molecular Biology | 2004 |
Vitamin D regulated keratinocyte differentiation
DD Bikle |
Journal of Cellular Biochemistry | 2004 |
Vitamin D and skin: new aspects for dermatology
B Lehmann, K Querings, J Reichrath |
Experimental Dermatology | 2004 |
Rat growth plate chondrocytes express low levels of 25-hydroxy-1α-hydroxylase
U Hügel, L Weber, J Reichrath, O Mehls, G Klaus |
The Journal of Steroid Biochemistry and Molecular Biology | 2004 |
C-25 hydroxylation of 1α,24(R)-dihydroxyvitamin D3 is catalyzed by 25-hydroxyvitamin D3-24-hydroxylase (CYP24A1): metabolism studies with human keratinocytes and rat recombinant CYP24A1
N Astecker, EA Bobrovnikova, JL Omdahl, L Gennaro, P Vouros, I Schuster, MR Uskokovic, S Ishizuka, G Wang, GS Reddy |
Archives of Biochemistry and Biophysics | 2004 |
Mice lacking 25OHD 1alpha-hydroxylase demonstrate decreased epidermal differentiation and barrier function
DD Bikle, S Chang, D Crumrine, H Elalieh, MQ Man, O Dardenne, Z Xie, RS Arnaud, K Feingold, PM Elias |
The Journal of Steroid Biochemistry and Molecular Biology | 2004 |
Analysis of the vitamin D system in basal cell carcinomas (BCCs)
T Mitschele, B Diesel, M Friedrich, V Meineke, RM Maas, BC Gärtner, J Kamradt, E Meese, W Tilgen, J Reichrath |
Laboratory Investigation | 2004 |
Vitamin D: importance in the prevention of cancers, type 1 diabetes, heart disease, and osteoporosis
MF Holick |
The American journal of clinical nutrition | 2004 |
Vitamin D and Skin Cancer
DD Bikle |
The Journal of nutrition | 2004 |
Nutrition and Bone Health
MF Holick, B Dawson-Hughes |
2004 | |
Neue Aspekte zur Bedeutung des Vitamin-D 3 -Stoffwechsels in der Haut
B Lehmann, K Querings, J Reichrath |
Der Hautarzt | 2004 |
Cutaneous Photobiology. The Melanocyte vs. the Sun: Who Will Win the Final Round?
AL Kadekaro, RJ Kavanagh, K Wakamatsu, S Ito, MA Pipitone, ZA Abdel-Malek |
Pigment Cell Research | 2003 |
Demonstration of UVB-induced synthesis of 1α,25-dihydroxyvitamin D3 (calcitriol) in human skin by microdialysis
B Lehmann, W Sauter, P Knuschke, S Dreßler, M Meurer |
Archives of Dermatological Research | 2003 |
Fortification of orange juice with vitamin D: a novel approach for enhancing vitamin D nutritional health
V Tangpricha, P Koutkia, SM Rieke, TC Chen, AA Perez, MF Holick |
The American journal of clinical nutrition | 2003 |
Vitamin D Analogs in Cancer Prevention and Therapy
J Reichrath, W Tilgen, M Friedrich |
2003 | |
Lack of the Vitamin D Receptor is Associated with Reduced Epidermal Differentiation and Hair Follicle Growth
Z Xie, L Komuves, QC Yu, H Elalieh, DC Ng, C Leary, S Chang, D Crumrine, T Yoshizawa, S Kato, DD Bikle |
Journal of Investigative Dermatology | 2002 |
Vitamin D: the underappreciated D-lightful hormone that is important for skeletal and cellular health
MF Holick |
Current Opinion in Endocrinology & Diabetes | 2002 |
Clonal Differences in Expression of 25-Hydroxyvitamin D3-1α-hydroxylase, of 25-Hydroxyvitamin D3-24-hydroxylase, and of the Vitamin D Receptor in Human Colon Carcinoma Cells: Effects of Epidermal Growth Factor and 1α,25-Dihydroxyvitamin D3
P Bareis, E Kállay, MG Bischof, G Bises, H Hofer, C Pötzi, T Manhardt, R Bland, HS Cross |
Experimental Cell Research | 2002 |
Biologic Effects of Light 2001
MF Holick |
2002 | |
Dietary Phosphorus Transcriptionally Regulates 25-Hydroxyvitamin D-1α-Hydroxylase Gene Expression in the Proximal Renal Tubule
MY Zhang, X Wang, JT Wang, NA Compagnone, SH Mellon, JL Olson, HS Tenenhouse, WL Miller, AA Portale |
Endocrinology | 2002 |
Identification of a Renal Proximal Tubular Cell-Specific Enhancer in the Mouse 25-Hydroxyvitamin D 1α-Hydroxylase Gene
T Yoshida, J Yoshino, M Hayashi, T Saruta |
Journal of the American Society of Nephrology : JASN | 2002 |
Inhibition of 1,25-Dihydroxyvitamin-D-Induced Keratinocyte Differentiation by Blocking the Expression of Phospholipase C-gamma1
Z Xie, DD Bikle |
Journal of Investigative Dermatology | 2001 |
Genetics of vitamin D biosynthesis and its disorders
WL Miller, AA Portale |
Best Practice & Research Clinical Endocrinology & Metabolism | 2001 |
UVB-Induced Conversion of 7-Dehydrocholesterol to 1alpha,25-Dihydroxyvitamin D3 in an In Vitro Human Skin Equivalent Model
B Lehmann, T Genehr, P Knuschke, J Pietzsch, M Meurer |
Journal of Investigative Dermatology | 2001 |
Analysis of Basal Regulatory Elements in the 25-Hydroxyvitamin D3 1α-Hydroxylase Gene Promoter
HL Brenza, HF DeLuca |
Archives of Biochemistry and Biophysics | 2001 |
Skin is an autonomous organ in synthesis, two-step activation and degradation of vitamin D3: CYP27 in epidermis completes the set of essential vitamin D3-hydroxylases
M Schuessler, N Astecker, G Herzig, G Vorisek, I Schuster |
Steroids | 2001 |
Selective inhibitors of CYP24: mechanistic tools to explore vitamin D metabolism in human keratinocytes
I Schuster, H Egger, N Astecker, G Herzig, M Schüssler, G Vorisek |
Steroids | 2001 |
Selective inhibition of vitamin D hydroxylases in human keratinocytes11Abbreviations: VD: vitamin D3; 25(OH)D3: 25-hydroxyvitamin D3; 3H-25(OH)D3: [26,27n-3H] 25-hydroxyvitamin D3; 1α,25(OH)2D3: 1α,25-dihydroxyvitamin D3; 1α,25(OH)2-3epi-D3: 1α,25-dihydroxyvitamin-3-epi-D3; 1α,24(R),25(OH)3D3: 1α,24(R),25-trihydroxyvitamin D3, 1α,25(OH)2-24oxo-D3: 1α,25-dihydroxy-24oxo-vitamin D3; 1α,23(S),25(OH)3-24oxo-D3: 1α,23(S),25-trihydroxy-24oxo-vitamin D3; calcitroic acid: 1α-hydroxy-23-carboxy-24,25,26,27-tetranorvitamin D3; CYP: cytochrome P450; 1α-hydroxylase: 25-hydroxyvitamin D3-1α-hydroxylase; 24-hydroxylase (CYP24), 1α,25-hydroxyvitamin D3-24-hydroxylase; PHK, primary human keratinocytes; KGM: keratinocyte growth medium; HPLC, high performance liquid chromatography; IC50: half-maximum inhibitor concentration; SD: standard deviation
I Schuster, H Egger, D Bikle, G Herzig, GS Reddy, A Stuetz, P Stuetz, G Vorisek |
Steroids | 2001 |
UVB-induced Conversion of 7-Dehydrocholesterol to 1α,25-Dihydroxyvitamin D3 (Calcitriol) in the Human Keratinocyte Line HaCaT¶
B Lehmann, P Knuschke, M Meurer |
Photochemistry and Photobiology | 2000 |
Vitamin D 1α-Hydroxylase
WL Miller, AA Portale |
Trends in Endocrinology & Metabolism | 2000 |
Identification of a 25-Hydroxyvitamin D3 1α-Hydroxylase Gene Transcription Product in Cultures of Human Syncytiotrophoblast Cells1
L Díaz, I Sánchez, E Avila, A Halhali, F Vilchis, F Larrea |
The Journal of clinical endocrinology and metabolism | 2000 |
Production of 1α,25-Dihydroxy-3-epi-vitamin D3 in two rat osteosarcoma cell lines (UMR 106 and ROS 17/2.8): existence of the C-3 epimerization pathway in ROS 17/2.8 cells in which the C-24 oxidation pathway is not expressed
ML Siu-Caldera, H Sekimoto, A Weiskopf, P Vouros, KR Muralidharan, WH Okamura, J Bishop, AW Norman, MR Uskoković, I Schuster, GS Reddy |
Bone | 1999 |
GENETIC DISORDERS OF VITAMIN D BIOSYNTHESIS
WL Miller, AA Portale |
Endocrinology & Metabolism Clinics of North America | 1999 |
1,25 dihydroxyvitamin D3 enhances the calcium response of keratinocytes
AV Ratnam, DD Bikle, JK Cho |
Journal of Cellular Physiology | 1999 |
1α,25-Dihydroxy-3-epi-vitamin D3: In vivo metabolite of 1α,25-dihydroxyvitamin D3 in rats
H Sekimoto, ML Siu-Caldera, A Weiskopf, P Vouros, KR Muralidharan, WH Okamura, MR Uskokovic, GS Reddy |
FEBS Letters | 1999 |
Vitamin D: Non-skeletal actions and effects on growth
H Lal, R Pandey, SK Aggarwal |
Nutrition Research | 1999 |
Human keratinocyte line HaCaT metabolizes 1α-hydroxyvitamin D3 and vitamin D3 to 1α,25-dihydroxyvitamin D3 (calcitriol)
B Lehmann, J Pietzsch, A Kämpf, M Meurer |
Journal of Dermatological Science | 1998 |
Current Understanding of the Molecular Actions of Vitamin D
G Jones, SA Strugnell, HE DeLUCA |
Physiological reviews | 1998 |
Osteoporosis
DL Glaser, FS Kaplan |
Spine | 1997 |
1alpha,25-Dihydroxyvitamin D3 and a Variety of its Natural Metabolites Transcriptionally Repress Nuclear-Factor-kappaB-Mediated Interleukin-8 Gene Expression
H Harant, PJ Andrew, GS Reddy, E Foglar, IJ Lindley |
European Journal of Biochemistry | 1997 |
HaCaT Cell Line as a Model System for Vitamin D3 Metabolism in Human Skin
B Lehmann |
Journal of Investigative Dermatology | 1997 |
Advances in Molecular and Cell Biology
KJ Clemetson |
Advances in Molecular and Cell Biology | 1997 |
Vitamin D metabolism in human colon adenocarcinoma-derived Caco-2 cells: Expression of 25-hydroxyvitamin D3-1α-hydroxylase activity and regulation of sidechain metabolism
HS Cross, M Peterlik, GS Reddy, I Schuster |
The Journal of Steroid Biochemistry and Molecular Biology | 1997 |
1,25-Dihydroxyvitamin D3 Regulates Estrogen Metabolism in Cultured Keratinocytes*
SV Hughes, E Robinson, R Bland, HM Lewis, PM Stewart, M Hewison |
Endocrinology | 1997 |
Inhibitory effect of 1α,25-dihydroxyvitamin D3 on mast cell proliferation and A23187-induced histamine release, also accompanied by a decreased c-kit receptor
N Toyota, H Sakai, H Takahashi, Y Hashimoto, H Iizuka |
Archives of Dermatological Research | 1996 |
Immunohistochemical Detection of 1,25-dihydroxyvitamin D3 Receptors (VDR) in Human Skin
J Reichrath, ED Collins, S Epple, A Kerber, AW Norman, FA Bahmer |
Pathology - Research and Practice | 1996 |
Effect of UVB phototherapy and oral calcitriol (1,25-dihydroxyvitamin D3) on vitamin D photosynthesis in patients with psoriasis
JH Prystowsky, PJ Muzio, S Sevran, TL Clemens |
Journal of the American Academy of Dermatology | 1996 |
Anti-proliferative activity and target cell catabolism of the vitamin D analog 1α,24(S)-(OH)2D2 in normal and immortalized human epidermal cells
G Jones, V Byford, HL Makin, R Kremer, RH Rice, LA deGraffenried, JC Knutson, CW Bishop |
Biochemical Pharmacology | 1996 |
Antiproliferative effects of the biologically active metabolite of vitamin D3 (1,25 [OH]2 D3) on head and neck squamous cell carcinoma cell lines
J Kornfehl, M Formanek, A Temmel, B Knerer, M Willheim |
European Archives of Oto-Rhino-Laryngology | 1996 |
22-Oxa Calcitriol Is a Less Potent Regulator of Keratinocyte Proliferation and Differentiation Due to Decreased Cellular Uptake and Enhanced Catabolism
DD Bikle, J Abe-Hashimoto, MJ Su, S Felt, DF Gibson, S Pillai |
Journal of Investigative Dermatology | 1995 |
Production of 1,25 Dihydroxyvitamin D3 by Perfused Pig Skin
DD Bikle, BP Halloran, JE Riviere |
Journal of Investigative Dermatology | 1994 |
Synthesis of and response to 1,25 dihydroxycholecalciferol by subpopulations of murine epidermal keratinocytes: Existence of a paracrine system for 1,25 dihydroxycholecalciferol
M Rizk-Rabin, R Zineb, B Zhor, G Michele, P Jana |
Journal of Cellular Physiology | 1994 |
1,25-Dihydroxyvitamin D3 potentiates the keratinocyte response to calcium
MJ Su, DD Bikle, ML Mancianti, S Pillai |
The Journal of biological chemistry | 1994 |
Intracellular free calcium and growth changes in single human keratinocytes in response to vitamin D and five 20-epi-analogues
KT Jones, GR Sharpe |
Archives of Dermatological Research | 1994 |
Regulation of Keratinocyte Growth, Differentiation, and Vitamin D Metabolism by Analogs of 1,25-Dihydroxyvitamin D
DD Bikle, E Gee, S Pillai |
Journal of Investigative Dermatology | 1993 |
Physiology and Pharmacology of Bone
GR Mundy, TJ Martin |
1993 | |
Editorial
S Wolf |
Integrative Physiological and Behavioral Science | 1992 |
Vitamin D analogues in the treatment of psoriasis
K Kragballe |
Journal of Cellular Biochemistry | 1992 |
Parathyroid hormone stimulates protein kinase C but not adenylate cyclase in mouse epidermal keratinocytes
JF Whitfield, BR Chakravarthy, JP Durkin, RJ Isaacs, H Jouishomme, M Sikorska, RE Williams, RH Rixon |
Journal of Cellular Physiology | 1992 |
1,25-dihydroxy-vitamin-D3 enhances antiproliferative effect and transcription of TGF-?1 on human keratinocytes in culture
HJ Kim, N Abdelkader, M Katz, JA McLane |
Journal of Cellular Physiology | 1992 |
Vitamin D and Psoriasis
KE Lowe, AW Norman |
Nutrition Reviews | 1992 |
Characterization and regulation of the vitamin D hydroxylases
HJ Armbrecht, K Okuda, N Wongsurawat, RK Nemani, ML Chen, MA Boltz |
The Journal of Steroid Biochemistry and Molecular Biology | 1992 |
Analysis of PTHRP binding and signal transduction mechanisms in benign and malignant squamous cells
JJ Orloff, MB Ganz, AE Ribaudo, WJ Burtis, M Reiss, LM Milstone, AF Stewart |
American journal of physiology. Endocrinology and metabolism | 1992 |
Squamous Carcinoma Cell Lines Produce 1,25 Dihydroxyvitamin D, but Fail to Respond to Its Prodifferentiating Effect
DD Bikle, S Pillai, E Gee |
Journal of Investigative Dermatology | 1991 |
1α,25(OH)2 vitamin D3 increases intracellular calcium in human keratinocytes
B Bittiner, SS Bleehen, S Macneil |
British Journal of Dermatology | 1991 |
Involvement of endogenously produced 1,25-dihydroxyvitamin D-3 in the growth and differentiation of human keratinocytes
K Matsumoto, Y Azuma, M Kiyoki, H Okumura, K Hashimoto, K Yoshikawa |
Biochimica et Biophysica Acta (BBA) - Molecular Cell Research | 1991 |
Molecular Aspects of Monooxygenases and Bioactivation of Toxic Compounds
E Arinç, JB Schenkman, E Hodgson |
1991 | |
Melanoma Research: Genetics, Growth Factors, Metastases, and Antigens
L Nathanson |
1991 | |
The Nature and Biological Effects of Factors Responsible for Proliferation and Differentiation of Melanocytes
ZA Abdel-Malek, VB Swope, JJ Nordlund |
Pigment Cell Research | 1990 |
Inverse relation between severity of psoriasis and serum 1,25-dihydroxyvitamin D level
S Morimoto, K Yoshikawa, K Fukuo, T Shiraishi, E Koh, S Imanaka, S Kitano, T Ogihara |
Journal of Dermatological Science | 1990 |
Dermatology
MH Rustin |
Postgraduate medical journal | 1990 |
25-Hydroxyvitamin D3-1 alpha-hydroxylase in porcine hepatic tissue: subcellular localization to both mitochondria and microsomes
BW Hollis |
Proceedings of the National Academy of Sciences | 1990 |
Clinical and Laboratory Evaluation of Renal Stone Patients
DM Wilson |
Endocrinology and metabolism clinics of North America | 1990 |
Vitamin D
A Portale, Β Halloran, E Lonergan, R Morris |
Vitamin D | 1988 |
Extra-renal production of calcitriol in chronic renal failure
A Dusso, S Lopez-Hilker, N Rapp, E Slatopolsky |
Kidney International | 1988 |
Vitamin D Metabolite Production and Function in Keratinocytes
DD Bikle, S Pillai |
Annals of the New York Academy of Sciences | 1988 |
Characterization of a parathyroid Hormonelike Peptide Secreted by Human Keratinocytes
KL Insogna, AF Stwart, K Ikeda, M Centrella, LM Milsone |
Annals of the New York Academy of Sciences | 1988 |
Human Melanocytes as a Target Tissue for Hormones: In Vitro Studies with 1alpha-25, dihydroxyvitamin D3, alpha-melanocyte Stimulating Hormone, and Beta-estradiol
M Ranson, S Posen, RS Mason |
Journal of Investigative Dermatology | 1988 |
Human Melanoma Cells: Functional Modulation by Calciotropic Hormones
RS Mason, AM Pryke, M Ranson, HE Thomas, S Posen |
Journal of Investigative Dermatology | 1988 |
Hormonal effects of vitamin D3 on epidermal melanocytes
ZA Abdel-Malek, R Ross, L Trinkle, V Swope, JW Pike, JJ Nordlund |
Journal of Cellular Physiology | 1988 |
Metabolic Activation of Carcinogens by Keratinocytes
DR Bickers |
Annals of the New York Academy of Sciences | 1988 |
Actions of 1?,25-Dihydroxyvitamin D3on Normal, Psoriatic, and Promoted Epiderma1 Keratinocytes
T Kuroki, S Morimoto, T Suda |
Annals of the New York Academy of Sciences | 1988 |
Endocrine-skin interactions
KR Feingold, PM Elias |
Journal of the American Academy of Dermatology | 1988 |
Endocrine Factors as Effectors of Integumental Pigmentation
ZA Abdel-Malek |
Dermatologic Clinics | 1988 |
1,25-Dihydroxyvitamin D production and receptor binding in human keratinocytes varies with differentiation
S Pillai, DD Bikle, PM Elias |
The Journal of biological chemistry | 1988 |
Advances in Lipid Research
AM Scanu |
Advances in Lipid Research | 1965 |