alexa Vitamin D prevents endothelial progenitor cell dysfunction induced by sera from women with preeclampsia or conditioned media from hypoxic placenta.
Biochemistry

Biochemistry

Clinical & Medical Biochemistry

Author(s): Brodowski L, Burlakov J, Myerski AC, von Kaisenberg CS, Grundmann M,

Abstract Share this page

Abstract CONTEXT: Placenta-derived circulating factors contribute to the maternal endothelial dysfunction underlying preeclampsia. Endothelial colony forming cells (ECFC), a sub-population of endothelial progenitor cells (EPCs), are thought to be involved in vasculogenesis and endothelial repair. Low vitamin D concentrations are associated with an increased risk for preeclampsia. OBJECTIVE: We hypothesized that the function of human fetal ECFCs in culture would be suppressed by exposure to preeclampsia-related factors--preeclampsia serum or hypoxic placental conditioned medium--in a fashion reversed by vitamin D. DESIGN, SETTING, PATIENTS: ECFCs were isolated from cord blood of uncomplicated pregnancies and expanded in culture. Uncomplicated pregnancy villous placenta in explant culture were exposed to either 2\% (hypoxic), 8\% (normoxic) or 21\% (hyperoxic) O2 for 48 h, after which the conditioned media (CM) was collected. OUTCOME MEASURES: ECFC tubule formation (Matrigel assay) and migration were examined in the presence of either maternal serum from preeclampsia cases or uncomplicated pregnancy controls, or pooled CM, in the presence or absence of 1,25(OH)2 vitamin D3. RESULTS: 1,25(OH)2 vitamin D3 reversed the adverse effects of preeclampsia serum or CM from hypoxic placenta on ECFCs capillary-tube formation and migration. Silencing of VDR expression by VDR siRNA, VDR blockade, or VEGF pathway blockade reduced ECFC functional abilities. Effects of VDR or VEGF blockade were partially prevented by vitamin D. CONCLUSION: Vitamin D promotes the capillary-like tubule formation and migration of ECFCs in culture, minimizing the negative effects of exposure to preeclampsia-related factors. Further evaluation of the role of vitamin D in ECFC regulation and preeclampsia is warranted.
This article was published in PLoS One and referenced in Clinical & Medical Biochemistry

Relevant Expert PPTs

Relevant Speaker PPTs

  • Li Yu-Jung
    Intra-maxillary Drug delivery and Bio-sensing via Dental Implant and its considerations
    PPT Version | PDF Version
  • Nicolae Bacalbasa
    The benefits of surgery for breast cancer liver metastases – a single center experience
    PPT Version | PDF Version
  • Sitanshu Sekhar Lahiri
    A novel oral formulation for cancer therapy, loaded in a slow release matrix for targeted delivery
    PPT Version | PDF Version
  • Li-Chun Tsou
    Drug delivery device strategy for patient centric therapies
    PDF Version
  • Dipesh Shah
    Compatibility assessment of a model monoclonal antibody formulation in glass and in blow-fi ll-seal (BFS) plastic vial delivery formats
    PPT Version | PDF Version
  • Stephanie Ramos
    Enhanced Delivery of Dna-Based Vaccines and Immunotherapeutics through Next-Generation Electroporation Devices
    PPT Version | PDF Version
  • Nirmala Chauhan
    Modification of dietary fiber psyllium for use in oral insulin delivery
    PPT Version | PDF Version
  • Youngmi Jung
    TSG-6 induces liver regeneration by enhancing autophagy in mice with chronic liver damage
    PPT Version | PDF Version
  • Yosef Yarden
    Classically, the 3’untranslated region (3’UTR) is that region in eukaryotic protein-coding genes from the translation termination codon to the polyA signal. It is transcribed as an integral part of the mRNA encoded by the gene. However, there exists another kind of RNA, which consists of the 3’UTR alone, without all other elements in mRNA such as 5’UTR and coding region. The importance of independent 3’UTR RNA (referred as I3’UTR) was prompted by results of artificially introducing such RNA species into malignant mammalian cells. Since 1991, we found that the middle part of the 3’UTR of the human nuclear factor for interleukin-6 (NF-IL6) or C/EBP gene exerted tumor suppression effect in vivo. Our subsequent studies showed that transfection of C/EBP 3’UTR led to down-regulation of several genes favorable for malignancy and to up-regulation of some genes favorable for phenotypic reversion. Also, it was shown that the sequences near the termini of the C/EBP 3’UTR were important for its tumor suppression activity. Then, the C/EBP 3’UTR was found to directly inhibit the phosphorylation activity of protein kinase CPKC in SMMC-7721, a hepatocarcinoma cell line. Recently, an AU-rich region in the C/EBP 3’UTR was found also to be responsible for its tumor suppression. Recently we have also found evidence that the independent C/EBP 3’UTR RNA is actually exists in human tissues, such as fetal liver and heart, pregnant uterus, senescent fibroblasts etc. Through 1990’s to 2000’s, world scientists found several 3’UTR RNAs that functioned as artificial independent RNAs in cancer cells and resulted in tumor suppression. Interestingly, majority of genes for these RNAs have promoter-like structures in their 3’UTR regions, although the existence of their transcribed products as independent 3’UTR RNAs is still to be confirmed. Our studies indicate that the independent 3’UTR RNA is a novel non-coding RNA species whose function should be the regulation not of the expression of their original mRNA, but of some essential life activities of the cell as a whole.
    PPT Version | PDF Version
  • Suoqin Tang
    Survivin siRNA nano particles are capable of inhibiting liver cancer cell growth both in vitro and in vivo
    PPT Version | PDF Version
  • Arshad mahmood
    TRANSPORT OF SELF-NANOEMULSIFYING DRUG DELIVERY SYSTEM (SNEDDS) ACROSS MUCUS AND CELLULAR INTERNALIZATION
    PPT Version | PDF Version
  • Wei Duan
    Cancer stem cells targeted delivery of siRNA to overcome induced chemoresistance
    PPT Version | PDF Version
  • Yung-Chih Kuo
    “Yung-Chih Kuo-National-Chung-Cheng-University-Republic-of-China-Targeting-delivery-of-etoposide-to-inhibit-the-growth-of-human-glioblastoma-multiforme-using-lactoferrin-and-folic-acid-grafted-poly(lactide-co-glycolide)-nanoparticles”
    PPT Version | PDF Version
  • Biplab Mishra
    Compression of hepatoduodenal ligament by sponges during perihepatic packing for liver trauma leading to difficult maneuvering of angiography catheter through common hepatic artery: ‘Mishra Phenomenon’
    PPT Version | PDF Version
  • Mukesh Kumar
    Membrane fusion mediated cytosolic drug delivery through scFv targeted Sendai viral envelopes
    PPT Version | PDF Version

Recommended Conferences

  • 7th International Conference on Predictive, Preventive and Personalized Medicine & Molecular Diagnostics
    Oct 23-25, 2017 Chicago, USA
  • International Conference on Biotech Pharmaceuticals
    October 23-25, 2017 Paris, France

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

[email protected]

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

[email protected]

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001 Extn: 9042

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords