نتایج جستجو برای: cd34 antigen
تعداد نتایج: 210770 فیلتر نتایج به سال:
آنژیوژنز در موکواپیدرموئید کارسینومای غدد بزاقی و ارتباط آن با درجه بافت شناختی دکتر شهرو اعتماد مقدم1- دکتر مژگان علاء الدینی1- دکتر بهاره مظفری2 1- استادیار مرکز تحقیقات دندانپزشکی دانشگاه علوم پزشکی تهران 2- دندانپزشک چکیده زمینه و هدف : آنژیوژنز فرایند پایهای در رشد و متاستاز تومور است و با میانگین تراکم عروق خونی کوچک ارزیابی میشود. هدف از این مطالعه ارزیابی تراکم عروق ...
بن یاخته های cd34+ و مزانشیمی از خون بندناف انسان جدا شدند. این یاخته ها بعد از تعیین ویژگی به یاخته های شبه هپاتوسیتی تمایز داده شدند و به دنبال آن تأیید تمایز با روش های ایمونوسیتوشیمی و rt-pcr انجام شد. به منظور مقایسه حیات و آسیب dna، یاخته های شبه هپاتوسیتی، بن یاخته های مزانشیمی و cd34+ در معرض افلاتوکسین b1 (afb1) قرار گرفتند. تیمار با afb1 در روز 15 تمایز اثراتی وابسته به دوز و زمان بر ...
BACKGROUND AND OBJECTIVE So far several reports have described changes in the expression of surface antigens in progenitor cells and blasts following cryopreservation. However, there are no data on the effects of cryopreservation on the expression of the three CD34 epitope classes, and on their relationship with the clonogenic capacity of PBPC collected by leukapheresis. DESIGN AND METHODS In...
•Human cord blood-derived CD34-negative HSCs are identified and characterized.•CD133 GPI-80 specific positive/enrichment markers for CD34– HSCs.•CD34–HSCs constitute class of human different from CD34+ reside at the apex HSC hierarchy.•Proposal A revised road map is proposed commitment CB-derived CD34–HSCs. Hematopoietic stem cell (HSC) heterogeneity hierarchy a current topic interest, having m...
background: human cd34 is a transmembrane glycoprotein which is expressed in human hematopoietic stem cells (hscs) and the small- vessel endothelial cells of a variety of tissues. cd34 plays a critical role as a marker for diagnosis and classification of leukemia. anti cd34 antibodies are used for isolation and purification of hscs from bone marrow, peripheral blood and cord blood. objective: t...
Background: Breast cancer (BC) stroma has CD34- and αSMA-positive cancer-associated fibroblasts (CAFs) differently distributed. During malignant transformation, CD34-positive decrease while CAFs increase. The prevalence of in BC makes microscopic examination difficult without digital image analysis processing (DIA). DIA was used to compare among breast molecular subgroups. DIA-derived data were...
Human umbilical cord blood (HUCB) contains stem/progenitor cells, which can differentiate into a variety of cell types. In this study, we investigated whether HUCB cells differentiate into hepatocytes in vitro and in vivo. We also examined whether CD34 could be the selection marker of stem cells for hepatocytes. HUCB cells were obtained from normal full-term deliveries, and CD34(+/-) cells were...
To investigate the tropism of the T-lymphotropic human herpesvirus 7 (HHV-7) for hematopoietic progenitors, cord blood CD34(+) cells were inoculated in vitro with HHV-7 and then induced to differentiate along the granulocytic and erythroid lineages by the addition of appropriate cytokine cocktails. In semisolid assays, HHV-7 modestly affected the growth of committed (granulocytic/macrophagic an...
BACKGROUND Criteria for good candidate antigens for immunotherapy of acute myeloid leukemia are high expression on leukemic stem cells in the majority of patients with acute myeloid leukemia and low or no expression in vital tissues. It was shown in vaccination trials that Receptor for Hyaluronic Acid Mediated Motility (RHAMM/HMMR) generates cellular immune responses in patients with acute myel...
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