产品号 #04531_C
含琼脂- lcm（不含促红细胞生成素[EPO]）的人细胞甲基纤维素培养基
概述
MethoCult™H4531是一种以甲基纤维素为基础的培养基，用于人骨髓、外周血、动员外周血和脐带血样本的集落形成单位（CFU）检测中造血祖细胞的生长和计数。该配方含有琼脂白细胞条件培养基（琼脂- lcm）作为集落刺激因子的来源。MethoCult™H4531支持粒细胞-巨噬细胞祖细胞（CFU-GM、CFU-G和CFU-M）和不依赖于epo的红细胞祖细胞的生长。适用于epo非依赖性红系祖细胞的检测。
浏览我们的常见问题（FAQs）进行CFU化验和探索其作为细胞治疗工作流程一部分的效用.
Contains
• Methylcellulose in Iscove's MDM
• Fetal bovine serum
• Bovine serum albumin
• 2-Mercaptoethanol
• Agar-LCM
• Supplements
Subtype
Semi-Solid Media, Specialized Media
Cell Type
Hematopoietic Stem and Progenitor Cells
Species
Human
Application
Cell Culture, Colony Assay, Functional Assay
Brand
MethoCult
Area of Interest
Stem Cell Biology
Data Figures
Protocols and Documentation
Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.
Applications
This product is designed for use in the following research area(s) as part of the highlighted workflow stage(s). Explore these workflows to learn more about the other products we offer to support each research area.
Resources and Publications
Educational Materials (4)
Frequently Asked Questions
Publications (11)
mTOR inhibition and erythropoiesis: microcytosis or anaemia? Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2012 FEB
Abstract
BACKGROUND: Anaemia and microcytosis are common post kidney transplantation. The aim of this study was to evaluate the potential role of mammalian target of rapamycin (mTOR) inhibition in the development of anaemia and microcytosis in healthy animals and in human erythroid cultures in vitro. METHODS: Rats with normal kidney function were treated with sirolimus (n = 7) or vehicle (n = 8) for 15 weeks. Hemograms were determined thereafter. In the sirolimus withdrawal part of the study, rats received sirolimus (SRL) for 67 days (n = 4) 1 mg/kg three times per week or for 30 days (n = 4) and were observed until Day 120. Hemograms were performed regularly. Peripheral blood mononuclear cells from healthy controls (HC; n = 8), kidney transplant patients with sirolimus treatment with (SRL + MC; n = 8) or without microcytosis (SRL - MC; n = 8) were isolated and cultured in the absence or presence of SRL (5 ng/mL). RESULTS: SRL-treated animals had a reduced mean corpuscular volume (MCV) and elevated erythrocyte count compared with control animals after 15 weeks of treatment. This effect was evident as early as 4 weeks (MCV: 61.5 ± 1.8 versus 57 ± 1.7 fL; P = 0.0156; Red blood count 7.4 ± 0.3 × 10(9)/L versus 8.6 ± 0.5 × 10(9)/L; P = 0.0156) and was reversible 90 days after SRL withdrawal. SRL in the culture medium of erythroid cultures led to fewer colonies in cultures from HC as well as from kidney transplant patients (without SRL: 34.2 ± 11.4 versus with SRL: 27.5 ± 9.9 BFU-E-derived colonies P = 0.03), regardless if the cultures were derived from recipients with normocytic or with microcytic erythrocytes. The presence of tacrolimus in the culture medium had no influence on the number and size of colonies. CONCLUSION: mTOR inhibition induces microcytosis and polyglobulia, but not anaemia in healthy rats. This might be caused by growth inhibition of erythroid precursor cells.
Germline mutations of the CBL gene define a new genetic syndrome with predisposition to juvenile myelomonocytic leukaemia. Journal of medical genetics 2010 OCT
Abstract
BACKGROUND: CBL missense mutations have recently been associated with juvenile myelomonocytic leukaemia (JMML), an aggressive myeloproliferative and myelodysplastic neoplasm of early childhood characterised by excessive macrophage/monocyte proliferation. CBL, an E3 ubiquitin ligase and a multi-adaptor protein, controls proliferative signalling networks by downregulating the growth factor receptor signalling cascades in various cell types. METHODS AND RESULTS: CBL mutations were screened in 65 patients with JMML. A homozygous mutation of CBL was found in leukaemic cells of 4/65 (6%) patients. In all cases, copy neutral loss of heterozygosity of the 11q23 chromosomal region, encompassing the CBL locus, was demonstrated. Three of these four patients displayed additional features suggestive of an underlying developmental condition. A heterozygous germline CBL p.Y371H substitution was found in each of them and was inherited from the father in one patient. The germline mutation represents the first hit, with somatic loss of heterozygosity being the second hit positively selected in JMML cells. The three patients display a variable combination of dysmorphic features, hyperpigmented skin lesions and microcephaly that enable a 'CBL syndrome' to be tentatively delineated. Learning difficulties and postnatal growth retardation may be part of the phenotype. CONCLUSION: A report of germline mutations of CBL in three patients with JMML is presented here, confirming the existence of an unreported inheritable condition associated with a predisposition to JMML.
Construction and genetic selection of small transmembrane proteins that activate the human erythropoietin receptor. Proceedings of the National Academy of Sciences of the United States of America 2010 FEB
Abstract
This work describes a genetic approach to isolate small, artificial transmembrane (TM) proteins with biological activity. The bovine papillomavirus E5 protein is a dimeric, 44-amino acid TM protein that transforms cells by specifically binding and activating the platelet-derived growth factor beta receptor (PDGFbetaR). We used the E5 protein as a scaffold to construct a retrovirus library expressing approximately 500,000 unique 44-amino acid proteins with randomized TM domains. We screened this library to select small, dimeric TM proteins that were structurally unrelated to erythropoietin (EPO), but specifically activated the human EPO receptor (hEPOR). These proteins did not activate the murine EPOR or the PDGFbetaR. Genetic studies with one of these activators suggested that it interacted with the TM domain of the hEPOR. Furthermore, this TM activator supported erythroid differentiation of primary human hematopoietic progenitor cells in vitro in the absence of EPO. Thus, we have changed the specificity of a protein so that it no longer recognizes its natural target but, instead, modulates an entirely different protein. This represents a novel strategy to isolate small artificial proteins that affect diverse membrane proteins. We suggest the word traptamer" for these transmembrane aptamers."
更多信息
| Species | Human |
|---|---|
| Contains | • Methylcellulose in Iscove's MDM • Fetal bovine serum • Bovine serum albumin • 2-Mercaptoethanol • Agar-LCM • Supplements |
相关产品
-
MethoCult™H4035 Optimum无EPO含重组细胞因子（不含促红细胞生成素[EPO]）的人细胞甲基纤维素培养基
-
MethoCult™H4431甲基纤维素为基础的培养基，含有琼脂- lcm和EPO，用于人细胞
-
MethoCult™H4534经典无EPO含重组细胞因子（不含促红细胞生成素[EPO]）的人细胞甲基纤维素培养基
-
MethoCult™H4535富集无EPO含重组细胞因子（不含促红细胞生成素[EPO]）的人细胞甲基纤维素培养基
PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED. FOR ADDITIONAL INFORMATION ON QUALITY AT STEMCELL, REFER TO WWW.STEMCELL.COM/COMPLIANCE.
