Synthesis and vitamin D receptor affinity of 16-oxa vitamin D3 analogues

2019 ◽  
Vol 17 (48) ◽  
pp. 10188-10200 ◽  
Author(s):  
Kouta Ibe ◽  
Takeshi Yamada ◽  
Sentaro Okamoto
Keyword(s):  
Vitamin D ◽  
Vitamin D Receptor ◽  
Vitamin D3 ◽  
Ring Closing Metathesis ◽  
Receptor Affinity ◽  
Enyne Cyclization ◽  
Radical Reduction ◽  
Key Steps

Two novel 16-oxa-vitamin D3 analogues were synthesized using a Ti(ii)-mediated enyne cyclization/Cu-catalyzed allylation, Ru-catalyzed ring-closing metathesis, and a titanium-mediated stereoselective radical reduction of epoxide as the key steps.

Vitamin D Receptor (VDR) Allelic Variants Correlating with Response to Vitamin D3 Supplementation in Breast Cancer Survivors

2021 ◽  
pp. 1-14
Author(s):  
Elham Kazemian ◽  
Sayed Hossein Davoodi ◽  
Mohammad Esmaeil Akbari ◽  
Nariman Moradi ◽  
Safoora Gharibzadeh ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Vitamin D ◽  
Cancer Survivors ◽  
Vitamin D Receptor ◽  
Vitamin D3 ◽  
Breast Cancer Survivors ◽  
Allelic Variants ◽  
Vitamin D3 Supplementation

Identification of a highly potent vitamin D receptor antagonist: (25S)-26-Adamantyl-25-hydroxy-2-methylene-22,23-didehydro-19,27-dinor-20-epi-vitamin D3 (ADMI3)

2007 ◽  
Vol 460 (2) ◽  
pp. 240-253 ◽  
Author(s):  
Miharu Igarashi ◽  
Nobuko Yoshimoto ◽  
Keiko Yamamoto ◽  
Masato Shimizu ◽  
Michiyasu Ishizawa ◽  
...  
Keyword(s):  
Vitamin D ◽  
Receptor Antagonist ◽  
Vitamin D Receptor ◽  
Vitamin D3

scholarly journals Vitamin D3 induces vitamin D receptor and HDAC11 binding to relieve the promoter of the tight junction proteins

Oncotarget ◽  
2017 ◽  
Vol 8 (35) ◽  
pp. 58781-58789 ◽  
Author(s):  
Feng-Hua Liu ◽  
Shan-Shan Li ◽  
Xiao-Xi Li ◽  
Shuai Wang ◽  
Mao-Gang Li ◽  
...  
Keyword(s):  
Vitamin D ◽  
Tight Junction ◽  
Vitamin D Receptor ◽  
Vitamin D3 ◽  
Tight Junction Proteins ◽  
Junction Proteins

scholarly journals 25-Hydroxyvitamin D Inhibits Hepatitis C Virus Production in Hepatocellular Carcinoma Cell Line by a Vitamin D Receptor-Independent Mechanism

2019 ◽  
Vol 20 (9) ◽  
pp. 2367 ◽  
Author(s):  
Amiram Ravid ◽  
Noa Rapaport ◽  
Assaf Issachar ◽  
Arie Erman ◽  
Larisa Bachmetov ◽  
...  
Keyword(s):  
Vitamin D ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Vitamin D Receptor ◽  
Vitamin D3 ◽  
Mode Of Action ◽  
Virus Production ◽  
Independent Manner ◽  
Hydroxyvitamin D ◽  
Independent Mechanism

Previously, we have reported that the active vitamin D metabolite, calcitriol and vitamin D3 (cholecalciferol), both remarkably inhibit hepatitis C virus production. The mechanism by which vitamin D3 exerts its effect is puzzling due to the low levels of calcitriol produced in vitamin D3-treated Huh7.5 cells. In this study, we aimed to explore the mechanism of vitamin D3 anti-hepatitis C virus effect. We show that vitamin D3 activity is not mediated by its metabolic conversion to calcitriol, but may be due to its primary metabolic product 25(OH)D3. This is inferred from the findings that 25(OH)D3 could inhibit hepatitis C virus production in our system, and that adequate concentrations needed to exert this effect are produced in Huh7.5 cells treated with vitamin D3. Using the CRISPR-Cas9 editing technology to knockout the vitamin D receptor, we found that the antiviral activity of vitamin D3 and 25(OH)D3 was not impaired in the vitamin D receptor knockout cells. This result indicates that 25(OH)D3 anti-hepatitis C virus effect is exerted by a vitamin D receptor-independent mode of action. The possibility that vitamin D3 and 25(OH)D3, being 3β-hydroxysteroids, affect hepatitis C virus production by direct inhibition of the Hedgehog pathway in a vitamin D receptor-independent manner was ruled out. Taken together, this study proposes a novel mode of action for the anti-hepatitis C virus activity of vitamin D3 that is mediated by 25(OH)D3 in a vitamin D receptor-independent mechanism.

scholarly journals Vitamin D Receptor Genetic Variation and Cancer Biomarkers among Breast Cancer Patients Supplemented with Vitamin D3: A Single-Arm Non-Randomized Before and After Trial

Nutrients ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1264 ◽  
Author(s):  
Elham Kazemian ◽  
Mohammad Esmaeil Akbari ◽  
Nariman Moradi ◽  
Safoora Gharibzadeh ◽  
Alison M. Mondul ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Vitamin D ◽  
Cancer Survivors ◽  
Vitamin D Receptor ◽  
Adhesion Molecule ◽  
Vitamin D3 ◽  
Breast Cancer Survivors ◽  
Cancer Biomarkers ◽  
Vitamin D3 Supplementation ◽  
Vdr Polymorphisms

We investigated whether vitamin D receptor (VDR) polymorphisms were associated with cancer biomarkers, i.e., E-cadherin, matrix metallopeptidase 9 (MMP9), interferon β (IFNβ), soluble intercellular adhesion molecule-1 (s-ICAM-1), soluble vascular cell adhesion molecule-1 (s-VCAM-1), tumor necrosis factorα (TNFα), interleukin 6 (IL6), plasminogen activator inhibitor-1(PAI-1), and human high sensitivity C-reactive protein (hs-CRP), among breast cancer survivors who received vitamin D3 supplementation. In a single-arm non-randomized pre- and post trial, 176 breast cancer survivors who had completed treatment protocol including surgery, radio and chemotherapy were enrolled in the study and received 4000 IU of vitamin D3 daily for 12 weeks. The association between the VDR SNPs (ApaI, TaqI, FokI, BsmI and Cdx2) and response variable changes was assessed using linear regression, utilizing the “association” function in the R package “SNPassoc”. We observed that women with AA and GA [codominant model (AA compared to GG) and (GA compared to GG); dominant model (AA & GA compared to GG)] genotypes of Cdx2 showed higher increase in plasma MMP9 levels compared to the GG category. In addition, carriers of BsmI bb showed greater decrease in circulating TNFα levels after vitamin D3 supplementation [recessive model (bb compared to BB & Bb]. Likewise, significant associations were identified between haplotypes of VDR polymorphisms and on-study plasma MMP9 changes. However, our results indicate that VDR genetic polymorphisms were not associated with longitudinal changes in the remaining cancer biomarkers. Overall, our findings suggest that changes in certain inflammatory biomarkers in breast cancer survivors with low plasma 25(OH)D levels, supplemented with vitamin D3, may depend on VDR SNPs and haplotypes.

scholarly journals Vitamin D3-vitamin D receptor axis suppresses pulmonary emphysema by maintaining alveolar macrophage homeostasis and function

EBioMedicine ◽  
2019 ◽  
Vol 45 ◽  
pp. 563-577 ◽  
Author(s):  
Guangan Hu ◽  
Ting Dong ◽  
Sisi Wang ◽  
Hongyu Jing ◽  
Jianzhu Chen
Keyword(s):  
Vitamin D ◽  
Alveolar Macrophage ◽  
Vitamin D Receptor ◽  
Vitamin D3 ◽  
Pulmonary Emphysema ◽  
And Function
Sign in / Sign up

Export Citation Format

Share Document