نتایج جستجو برای: maintenance stem cell

تعداد نتایج: 1921337  

2015
Jeffrey T.A. Burrows Bret J. Pearson Ian C. Scott

The Mediator complex has recently been shown to be a key player in the maintenance of embryonic and induced pluripotent stem cells. However, the in vivo consequences of loss of many Mediator subunits are unknown. We identified med14 as the gene affected in the zebrafish logelei (log) mutant, which displayed a morphological arrest by 2 days of development. Surprisingly, microarray analysis showe...

Journal: :The Plant cell 2010
Wenkun Zhou Lirong Wei Jian Xu Qingzhe Zhai Hongling Jiang Rong Chen Qian Chen Jiaqiang Sun Jinfang Chu Lihuang Zhu Chun-Ming Liu Chuanyou Li

Recent identification of the Arabidopsis thaliana tyrosylprotein sulfotransferase (TPST) and a group of Tyr-sulfated peptides known as root meristem growth factors (RGFs) highlights the importance of protein Tyr sulfation in plant growth and development. Here, we report the action mechanism of TPST in maintenance of the root stem cell niche, which in the Arabidopsis root meristem is an area of ...

Journal: :Seminars in cell & developmental biology 2009
Shunsuke Miyashima Jose Sebastian Ji-Young Lee Yka Helariutta

The plant vascular system, composed of xylem and phloem, evolved to connect plant organs and transport various molecules between them. During the post-embryonic growth, these conductive tissues constitutively form from cells that are derived from a lateral meristem, commonly called procambium and cambium. Procambium/cambium contains pluripotent stem cells and provides a microenvironment that ma...

Journal: :iranian biomedical journal 0
شهرام دارابی shahram darabi تقی طریحی taki tiraihi علیرضا دلشاد alireza delshad مجید صادقی زاده majid sadeghizadeh

background: bone marrow stromal stem cells (bmsc) are appropriate source of multipotent stem cells that are ideally suited for use in various cell-based therapies. it can be differentiated into neuronal-like cells under appropriate conditions. this study examined the effectiveness of co-stimulation of creatine and retinoic acid in increasing the differentiation of bmsc into gabaergic neuron-lik...

Journal: :acta medica iranica 0
a. ghavamzadeh m. iravani m. jahani b. bahar a. mousavi s. gholibeikian

in this center, from 1991 to 2002, 89 chronic myelogenous leukemic (cml) patients, age ranging between 8-48 years with a median age of 29, underwent hematopoietic stem cell transplantation. eighty-eight patients were in the first chronic phase of disease. twenty-three patients received bone marrow transplantation (bmt) and 66 patients received peripheral blood stem cell transplantations (pbsct)...

Journal: :بینا 0
محمدعلی جوادی ma javadi تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم بهرام عین الهی b einollahi تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم علیرضا برادران رفیعی a baradaran rafiei تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم حسین بهاروند h baharvand عضو هیات علمی پژوهشکده رویان مرضیه ابراهیمی m ebrahimi عضو هیات علمی پژوهشکده رویان نسرین رفعتی n rafati دانشگاه علوم پزشکی شهید بهشتی مژگان رضایی کنوی

purpose: to report the early results of transplantation of autologous limbal stem cell cultivated on amniotic membrane in total limbal stem cell deficiency. methods: four eye of 4 patients with total unilateral stem cell deficiency secondary to severe chemical or thermal burn were included. stem cell deficiency was confirmed with impression cytology in all cases. under topical anesthesia, a sma...

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