Advertisement

Topics

The role of Wnt/β-catenin signaling in the restoration of induced pluripotent stem cell-derived retinal pigment epithelium after laser photocoagulation.

08:00 EDT 22nd September 2018 | BioPortfolio

Summary of "The role of Wnt/β-catenin signaling in the restoration of induced pluripotent stem cell-derived retinal pigment epithelium after laser photocoagulation."

To investigate the role of Wnt/β-catenin signaling pathway in the restoration of induced pluripotent stem cell-derived retinal pigment epithelium (hiPSC-RPE) after laser photocoagulation. After differentiation of RPE cells from hiPSCs, laser photocoagulation was performed. Activation of Wnt/β-catenin signaling at days 1 and 5 after laser photocoagulation was evaluated by expression of β-catenin. Cell proliferation and alteration in cell-to-cell contact at day 5 after laser photocoagulation with or without Dickkopf-1 (Dkk-1) treatment were studied using ethynyl-2'-deoxyuridine (EdU) assay and zonula occludens-1 (ZO-1) expression analysis, respectively. The mRNA levels of Wnt genes at day 5 after laser photocoagulation were evaluated by quantitative real-time polymerase chain reaction (qRT-PCR). Activation of Wnt/β-catenin signaling at days 1 and 5 after laser photocoagulation was confirmed by β-catenin accumulation in the cytoplasm and nucleus of hiPSC-RPE. Many EdU-positive cells also expressed β-catenin, and the number of EdU-positive cells was decreased at day 5 after laser photocoagulation after Dkk-1 treatment, indicating that Wnt/β-catenin signaling mediated hiPSC-RPE proliferation. ZO-1 expression was not decreased with Dkk-1 treatment at day 5 after laser photocoagulation, indicating that Wnt/β-catenin signaling mediated hiPSC-RPE restoration. At day 5, after laser photocoagulation, mRNA levels of Wnt2b, Wnt3, Wnt5a, Wnt7a, and Wnt10b were increased. Wnt/β-catenin signaling has a crucial role in restoration of hiPSC-RPE proliferation after laser photocoagulation. Manipulation of Wnt/β-catenin signaling while elucidating the underlying mechanisms of RPE restoration might have a therapeutic potential in retinal degenerative diseases.

Affiliation

Journal Details

This article was published in the following journal.

Name: Lasers in medical science
ISSN: 1435-604X
Pages:

Links

DeepDyve research library

PubMed Articles [36068 Associated PubMed Articles listed on BioPortfolio]

MicroRNA-298 represses hepatocellular carcinoma progression by inhibiting CTNND1-mediated Wnt/β-catenin signaling.

MicroRNAs (miRNAs) are solid factors involved in the initiation and progression of hepatocellular carcinoma (HCC). Recently, miR-298 is recognized as a cancer-associated miRNA in breast, gastric and o...

Induction of pluripotent stem cells by reprogramming human ocular fibroblasts under xeno-free conditions.

To develop an efficient and xeno-free standard eye-derived induced pluripotent stem cell reprogramming protocol for use during induced pluripotent stem cell-based cell therapies in treating retinal de...

Generation of an induced pluripotent stem cell line from an individual with a heterozygous RECQL4 mutation.

The DNA helicase RECQL4 is known for its roles in DNA replication and repair. RECQL4 mutations cause several genetic disorders including Rothmund-Thomson syndrome (RTS), characterized by developmental...

LGK974, a PORCUPINE inhibitor, mitigates cytotoxicity in an in vitro model of Parkinson's disease by interfering with the WNT/β-CATENIN pathway.

Paraquat (PQ) as an herbicide has been demonstrated to impair dopaminergic (DAergic) neurons and highly correlate with the etiology of Parkinson's disease (PD). WNT/β-CATENIN signaling is known for t...

Generation of a human induced pluripotent stem cell line, KSCBi003-A, from human adipose tissue-derived mesenchymal stem cells using a chromosomal integration-free system.

We generated a human induced pluripotent stem cell (hiPSC) line, KSCBi003-A, from adipose tissue-derived mesenchymal stem cells (Ad-MSCs) using a Sendai virus-based gene delivery system. We confirmed ...

Clinical Trials [12683 Associated Clinical Trials listed on BioPortfolio]

Thalassemia Treatment Based on the Stem Cell Technology

In order to study the transplantation effect of hematopoetic stem cells from beta-thalassemia induced pluripotent stem cells. We applied clinical grade source of autologous hematopoietic s...

Derivation of Induced Pluripotent Stem Cells From an Existing Collection of Human Somatic Cells

Induced pluripotent stem cells potentially may be useful in the future as an unlimited source of cells for transplantation. The major goal of the project is to develop human iPS cells fro...

Molecular Mechanism Identification in Inherited Arrhythmias and Valvulopathies From Induced Pluripotent Stem Cells

The recent developments of research on iPS (induced pluripotent stem) cells lead to the establishment of mature cell lines such as cardiomyocytes or valvular interstitial cells with geneti...

Use of Existing Fibroblast Cells to Convert to Induced Pluripotent Stem Cells

Induced pluripotent stem cells potentially may be useful in the future as an unlimited source of cells for transplantation. The major goal of the project is to develop human iPS cells fro...

Modeling and Pharmacological Targeting of Genetic Cardiomyopathy in Children Via Cardiomyocytes Derived From Induced Pluripotent Stem Cells (DMDstem)

Interventional, cross-sectional biomedical study of children with genetic cardiomyopathy and healthy children. The aim is to generate, via induced human pluripotent stem cells (hiPSC), "pa...

Medical and Biotech [MESH] Definitions

The malignant stem cells of TERATOCARCINOMAS, which resemble pluripotent stem cells of the BLASTOCYST INNER CELL MASS. The EC cells can be grown in vitro, and experimentally induced to differentiate. They are used as a model system for studying early embryonic cell differentiation.

A multi-functional catenin that participates in CELL ADHESION and nuclear signaling. Beta catenin binds CADHERINS and helps link their cytoplasmic tails to the ACTIN in the CYTOSKELETON via ALPHA CATENIN. It also serves as a transcriptional co-activator and downstream component of WNT PROTEIN-mediated SIGNAL TRANSDUCTION PATHWAYS.

A specific complex of WNT SIGNALING PATHWAY proteins that mediates the phosphorylation-dependent destruction of cytosolic BETA-CATENIN. The complex is disrupted by cell surface binding of WNT PROTEINS, which allows beta-catenin levels to rise to the point where they migrate to the CELL NUCLEUS and activate transcription.

Cells from adult organisms that have been reprogrammed into a pluripotential state similar to that of EMBRYONIC STEM CELLS.

Methods of implanting a CELL NUCLEUS from a donor cell into an enucleated acceptor cell. Often the nucleus of a somatic cell is transferred into a recipient OVUM or stem cell (STEM CELLS) with the nucleus removed. This technology may provide means to generate autologous diploid pluripotent cell for therapeutic cloning, and a model for studying NUCLEAR REPROGRAMMING in embryonic stem cells. Nuclear transfer was first accomplished with frog eggs (RANA PIPIENS) and reported in 1952.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Relevant Topic

Stem Cells
Track and monitor developments in stem cell research and commercial development.  Follow the tabs above to read the latest global news, research, clinical trials on stem cells and follow companies active in the stem cell industry.  BioPort...


Searches Linking to this Article