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Cell Journal، جلد ۱۸، شماره ۳، صفحات ۳۲۲-۳۳۱
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عنوان انگلیسی Effect of The Receptor Activator of Nuclear Factor кB and RANK Ligand on In Vitro Differentiation of Cord Blood CD133+ Hematopoietic Stem Cells to Osteoclasts
چکیده انگلیسی مقاله Objective: Receptor activator of nuclear factor-kappa B ligand (RANKL) appears to be an osteoclast-activating factor, bearing an important role in the pathogenesis of multiple myeloma. Some studies demonstrated that U-266 myeloma cell line and primary myeloma cells expressed RANK and RANKL. It had been reported that the expression of myeloid and monocytoid markers was increased by co-culturing myeloma cells with hematopoietic stem cells (HSCs). This study also attempted to show the molecular mechanism of RANK and RANKL on differentiation capability of human cord blood HSC to osteoclast, as well as expression of calcitonin receptor (CTR) on cord blood HSC surface. Materials and methods: In this experimental study, CD133+ hematopoietic stem cells were isolated from umbilical cord blood and cultured in the presence of macrophage colony-stimulating factor (M-CSF) and RANKL. Osteoclast differentiation was characterized by using tartrate-resistant acid phosphatase (TRAP) staining, giemsa staining, immunophenotyping, and reverse transcription-polymerase chain reaction (RT-PCR) assay for specific genes. Results: Hematopoietic stem cells expressed RANK before and after differentiation into osteoclast. Compared to control group, flow cytometric results showed an increased expression of RANK after differentiation. Expression of CTR mRNA showed TRAP reaction was positive in some differentiated cells, including osteoclast cells. Conclusion: Presence of RANKL and M-CSF in bone marrow could induce HSCs differentiation into osteoclast.
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نویسندگان مقاله نسیم کلانتری | nasim kalantari


سعید آبرون | saeid abroun


مسعود سلیمانی | masoud soleimani


سعید کاویانی | saeid kaviani


مهدی آزاد | mehdi azad


فاطمه اسکندری | fatemeh eskandari


حسین حبیبی | hossein habibi


نشانی اینترنتی http://celljournal.org/journal/article/abstract/4559
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