Objective: Poor stem cell survival is one of the obstacles for cell regeneration therapy post myocardial infarction (MI) and responsible for unsatisfactory therapeutic effectiveness. Various approaches to improve the status of these cells and increase cell survival have become research foci. The following article is a mini-review on the utilization of cell preconditioning for stem cell survival.
Data Sources: The data used in this review were mainly from the articles in Medline and PubMed published from 1990 to 2010. The search terms included "preconditioning, stem cell and myocardial infarction".
Study Selection: Original articles and critical reviews selected were relevant to the review's theme.
Results: The harsh ischemic and inflammatory microenvironment in the infarcted myocardium offers a significant challenge to the transplanted donor stem cells. Survival of stem cells following transplantation is affected by many factors, such as limited blood supply, nutritional deficiency, hypoxia, oxidative stress, and inflammation. Preconditioning methods have potent cytoprotective effects, which enables cells to maintain a "standby state" through programmed initiation of cell survival pathways.
Conclusions: The findings suggest that cell preconditioning can be used as an effective anti-apoptotic strategy and enable cells to withstand and survive the harsh environment after transplantation.
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Neuro Oncol
December 2024
CRCI2NA, Inserm 1307, CNRS 6075, Nantes Université, Université d'Angers, Nantes, France.
Neuro Oncol
December 2024
Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, China.
Mol Biol Rep
December 2024
The Affiliated Loudi Hospital, Hengyang Medical School, University of South China, Loudi, Hunan, 417000, China.
Background: Premature ovarian insufficiency (POI) is a refractory disease that severely affects female fertility. The PERK/eIF-2α/ATF4/CHOP pathway is one of the classical pathways involved in the unfolded protein response to endoplasmic reticulum stress by regulating protein synthesis and promoting apoptosis. This study aimed to investigate the functional role and mechanism of human umbilical cord mesenchymal stem cells (hUCMSCs) in the POI animal model through the PERK/eIF-2α/ATF4/CHOP pathway.
View Article and Find Full Text PDFClin Transl Med
January 2025
Institute of Clinical Science, Zhongshan Hospital, Fudan University Shanghai Medical College, Shanghai, China.
Backgroud: Oesophageal cancer ranks among the most prevalent malignant tumours globally, primarily consisting of oesophageal squamous cell carcinoma (ESCC). Cancer stem cells (CSCs) accelerate the progression ESCC via their strong self-renewal and tumourigenic capabilities, presenting significant clinical challenges due to increased risks of recurrence and drug resistance.
Methods: Our previous study has reported WYC-209, which is capable of inducing apoptosis of CSCs in melanoma and hepatoma, but is ineffective against ESCC.
Med Law Rev
December 2024
Law School, London School of Economics and Political Science, London WC2A 2AE, United Kingdom.
One of this century's most dramatic scientific developments is the reprogramming of stem cells in order to create organoids, that is, self-organizing 3D models that mimic the structure and function of human organs. This article considers whether brain organoids in particular might raise any new questions for law, now or in the near future. If complex human brain organoids were to become capable of consciousness or sentience, the current regulation of human tissue research, which protects the interests of tissue donors, might need to be supplemented in order to protect the interests of the tissue itself.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!