نتایج جستجو برای: derived stem cell
تعداد نتایج: 2156290 فیلتر نتایج به سال:
abstract regeneration is a biological phenomenon, which takes place via two main mechanisms: first, dedifferentiation of mature cells followed by their differentiation into functional new cells and second, activation of endogenous somatic stem cells for regeneration of damaged or lost tissues. one of the best examples of healing process in mammals is the regeneration of damaged pinna in rabbits...
the neoplastic niche comprises complex interactions between multiple cell types and molecules requiring cell-cell signaling as well as local secretion. these niches are important for both the maintenance of cancer stem cells and the induction of neoplastic cells survival and proliferation. each niche contains a population of tumor stem cells supported by a closely associated vascular bed compri...
Background The mammary gland in humans is a dynamic organ that undergoes significant developmental changes during pregnancy, lactation, and involution. Stem cells derived from human breast milk possess the adult stem cell-like characteristics such as self-renewal, proliferative and differentiate potential. This source of stem cells avoids invasive procedures and the ethical controversy of emb...
Background and purpose: Articular cartilage disease is prevalent in all societies and in most cases the damaged cartilage would not repair. Conservative treatments are associated with many problems. So cell therapy is needed as a definite treatment. One of the best and most accessible sources of cells for this purpose is stem cells derived from adipose tissue which can be differentiated into ch...
Purpose: Embryonic stem (ES) cells are derived from the inner cell mass of blastocysts with self-renewal and pluripotency characteristics. These cells have potential for studies of in vitro differentiation, gene function, etc. This study was, therefore, initiated to establish new ES lines and evaluate the effects of strain on ES cell production. Materials and Methods: 3-5 day blastocysts were ...
background new research proposes the pluripotency of spermatogonial cells obtained from testis. these spermatogonia-derived stem cells are called embryonic stem-like cells that express embryonic stem cell markers and differentiate to the three germ layers. objectives the aim of the present study was to generate embryonic stem-like cells from neonatal mouse testis. materials and methods the test...
Background and Objective: Mesenchymal stem cells are promising sources of stem cells for tissue repair because of their ability to differentiate into different cells, easy proliferation and culture, and immunomodulatory properties. Despite extensive research on the immunophenotype of mesenchymal stem cells, a lack of specific markers comprises challenges for researchers. The aim of this researc...
background: wharton’s jelly is an unlimited source of stem cells that can be used in cell therapy and tissue engineering without any ethical concern. it has been revealed the cell-free extract could be effective to induce cell differentiation. the objective of this study was to induce wharton’s jelly-derived mesenchymal stem cells (mscs) into hepatocyte-like cells by premeabilization of the cel...
Introduction: Stem cell biology has been the subject of much recent discussion. Embryonic stem (ES) cells, derived from the inner cell mass of the blastocyst stage of early mammalian embryos are expected to become a powerful tool in future regenerative medicine and developmental biology due to their capacity of self-renewal and pluripotency. In the present study, the ultrastructural development...
background the mammary gland in humans is a dynamic organ that undergoes significant developmental changes during pregnancy, lactation, and involution. stem cells derived from human breast milk possess the adult stem cell-like characteristics such as self-renewal, proliferative and differentiate potential. this source of stem cells avoids invasive procedures and the ethical controversy of embr...
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