the human placenta has long been the subject of scientific interest due to the important roles which it performs during pregnancy in sustaining the fetus and maintaining fetomaternal tolerance. more recently, however, researchers have begun to investigate the possibility that the placenta’s utility may extend beyond fetal development to act as a source of cells with clinically relevant properti...

embryonic stem cells (escs) are pluripotent, self-renewing cells. these cells can be used in applications such as cell therapy, drug discovery, disease modelling, and the study of cellular differentiation. in this experimental study embryonic stem cells cultured in the laboratory and were amplified. total rna was extracted from cells and converted to cdna by reverse transcription-polymerase cha...

allogeneic hematopoietic stem cell transplantation is used in the treatment of patients suffering from hematologic and non-hematologic disorders, but the application is limited by the identification of a suitable donor. umbilical cord blood (ucb) is an alternative source of hematopoietic stem cell (hsc) transplantation. despite all advantages, the limited cell dose is one of the  major obstacle...

objective: it is hypothesized that stem cells have the capability to form tumors after transplantation. spermatogonial stem cells have proliferation potency and colonization ability related to express pluripotency genes such as c-myc. the primary aim of this study is to investigate tumorigenicity ability of these cells after in vitro cultivation and inoculation in athymic animals. methods: sper...

objective(s): in this study, the effect of electrospun fiber orientation on proliferation and differentiation of mesenchymal stem cells (mscs) was evaluated. materials and methods: aligned and random nanocomposite nanofibrous scaffolds were electrospun from polylactic acid (pla), poly (vinyl alcohol) (pva) and calcium carbonate nanoparticles (ncap). the surface morphology of prepared nanofibrou...

the incidence of traumatic brain injury (tbi) are annually increasing, developed tissue engineering methods could represent the definite remedies for patients with strongly injured central nervous system and have a great effect in the public healthcare cost. the current clinical treatments in tbi display several limitations. furthermore, several therapies, coming from neural tissue engineering ...

background: the aim of this study was to fabricate the poly caprolactone (pcl) aligned nanofiber scaffold and to evaluate the survival, adhesion, proliferation, and differentiation of rat hair follicle stem cells (hfsc) in the graft material using electrospun pcl nanofiber scaffold for tissue engineering applications. methods: the bulge region of rat whisker was isolated and cultured in dmem: n...

background: stem cell factor (scf) is a transcriptional factor which plays crucial roles in normal proliferation, differentiation and survival in a range of stem cells. objective: the aim of the present study was to examine the proliferation effect of different concentrations of scf on expansion of human endometrial cd146+ cells. materials and methods: in this experimental study, total populati...

introduction: bone marrow (bm) is a known source of mesenchymal stem cells (mscs) that are used for cell therapy. this study attempts to identify if the wharton’s jelly (wj) is a suitable substitute for bm as a source for mscs. materials and methods: a population of human wj and bm stem cells were isolated and incubated with fluorescein conjugated antibodies for five specific msc markers. cell ...