人肾系膜细胞属于血管周细胞，位于肾小球毛细血管袢之间。系膜细胞有多种生理功能包括和分泌系膜基质，胞吞和加工血浆大分子，通过系膜细胞收缩和分泌血管活性激素控制肾小球血流动力学。肾系膜细胞增生和基质的过多产生是多种肾小球肾炎的主要病理表现，如IgA肾病，狼疮性肾炎，糖尿病肾病以及在肾小球硬化过程中细胞外基质增加。在培养中细胞增殖和基质合成/降解是通过细胞因子和生长因子调控的，因此细胞培养是研究系膜扩张、瘢痕形成和肾小球硬化的理想方法。

    人肾系膜细胞（HRMC）提取于人肾脏组织，提取纯化之后立即冻存。每管含有细胞数>5×105 cells/ml，此细胞通过Fibronectin, Thy-1和 smooth muscle actin免疫荧光染色验证，经测试不含有HIV-1、HBV、HCV、支原体、细菌、酵母和真菌。细胞可以达到15倍增。

*培养基:上海沪峰科技研发的高级培养基

Rena mesangial cells （RMC） are perivascular pericytes located within the central portion of the glomerular tuft between capillary loops. Mesangial cells have a variety of functions including synthesis and assembly of the mesangial matrix, endocytosis and processing of plasma macromolecules, and control of glomerular hemodynamics via mesangial cell contraction or release of vasoactive hormones [1]. Mesangial cell proliferation and matrix overproduction are the predominant pathological features of many forms of glomerulonephritis, such as IgA nephropathy, lupus nephropathy, and diabetic nephropathy and frequently precedes the increase of extracellular matrix in the mesangium and the development of glomerulosclerosis [2, 3]. As proliferation and matrix synthesis/degradation in vitro are regulated by cytokines and growth factors, cultured cells are an ideal tool for studying pathophysiological events such as mesangial expansion, scarring, and glomerulosclerosis.

HRMC from ScienCell Research Laboratories are isolated from human renal tissue. HRMC are cryopreserved immediay after purification and delivered frozen. Each vial contains >5 x 105 cells in 1 ml volume. HRMC are characterized by immunofluorescent method with antibodies to fibronectin, Thy-1, and smooth muscle actin. HRMC are negative for HIV-1, HBV, HCV, mycoplasma, bacteria, yeast and fungi. HBMEC are guaranteed to further expand for 15 population doublings in the conditions specified by ScienCell Research Laboratories.