Evolution of normal and neoplastic tissue stem cells : progress after Robert Hooke Irving
نویسندگان
چکیده
The appearance of stem cells coincides with the transition from single-celled organisms to metazoans. Stem cells are capable of self-renewal as well as differentiation. Each tissue is maintained by self-renewing tissue-specific stem cells. The accumulation of mutations that lead to preleukaemia are in the blood-forming stem cell, while the transition to leukaemia stem cells occurs in the clone at a progenitor stage. All leukaemia and cancer cells escape being removed by scavenger macrophages by expressing the ’don’t eat me’ signal CD47. Blocking antibodies to CD47 are therapeutics for all cancers, and are currently being tested in clinical trials in the US and UK.
منابع مشابه
Evolution of normal and neoplastic tissue stem cells: progress after Robert Hooke.
The appearance of stem cells coincides with the transition from single-celled organisms to metazoans. Stem cells are capable of self-renewal as well as differentiation. Each tissue is maintained by self-renewing tissue-specific stem cells. The accumulation of mutations that lead to preleukaemia are in the blood-forming stem cell, while the transition to leukaemia stem cells occurs in the clone ...
متن کاملP-50: Evolution of Bovine Embryos Cleavage in Co-Cultuer Mesenchyme Stem Cells (MSCs) Deried from Adipose Tissues
Background Mesenchyme stem cells (MSCs) are one of the widely used sources in tissue engineering and efficacy of cultural environment. In this survey, rat stem cells are used as coculture. Owing to main obstacle of embryo culture in the lab medium, the survival of embryo in lab is low in comparison with that of normal conditions. The purpose of this research is the survey of fertilization and c...
متن کاملبررسی اثر Poly(I:C) در مقایسه با LPS در تحریک سلول های مزانشیمال برگرفته از مغز استخوان در ترمیم سوختگی درجه سه پوست موشی
Background & Aims: The positive effect of mesenchymal stem cells in healing of various types of tissue damage such as burn has been reported. The therapeutic potential effects of mesenchymal stem cells influenced by certain agonists from their surface called Toll like receptor (TLR) can be modified into proinflammatory and anti-inflamation phenotypes. It is believed that modification of phenoty...
متن کاملسلولهای بنیادین، پیشرفتها و کاربردها در پزشکی بالینی
Stem cells are undifferentiated and multi pluripotent cells which can differentiate into a variety of mature cells and tissues such as nervous tissue, muscle tissue, epithelial tissue, skeletal tissue and etc. Stem cells from all different source have three unique features: 1) Proliferative capability: Stem cells are capable of self dividing and self renewing for long periods or more than six m...
متن کاملNormal and Neoplastic Stem Cells
A stem cell is broadly defined as a cell that retains the capacity to self-renew, a feature that confers the ability to continuously make identical daughter cells or additional cells that will differentiate into downstream progeny. This highly regulated genetic program to retain "stemness" is under active investigation. Research in our laboratory has explored similarities and differences in emb...
متن کامل