The MAPK (mitogen activated protein kinase) comprises a family of ubiquitous praline-directed, protein-serine/threonine kinases which signal transduction pathways that control intracellular events including acute responses to hormones and major developmental changes in organisms (1). This super family consists of stress activated protein kinases (SAPKs); extracellular signal-regulated kinases (ERKs); and p38 kinases, each of which forms a separate pathway (2). The kinase members that populate each pathway are sequentially activated by phosphorylation. Upon activation, p38 MAPK/SAPK2A translocates into the nucleus where it phosphorylates one or more nuclear substrates, effecting transcriptional changes and other cellular processes involved in cell growth, division, differentiation, inflammation, and death (3). Specifically p38 always acts as a pro-apoptotic factor with its activation leading to the release of cytochrome c from mitochondria and cleavage of caspase 3 and its downstream effector, PARP (4). p38 MAPK is activated by a variety of chemical stress inducers including hydrogen peroxide, heavy metals, anisomycin, sodium salicylate, LPS, and biological stress signals such as tumor necrosis factor, interleukin-1, ionizing and UV irradiation, hyperosmotic stress and chemotherapeutic drugs (5). As a result, p38 A has been widely validated as a target for inflammatory disease including rheumatoid arthritis, COPD and psoriasis (6) and has also been implicated in cancer, CNS and diabetes (7).
StressMarq Biosciences Inc. 在2007年成立于加拿大維多利亞,是一家生物科技公司,專(zhuān)門(mén)從事試劑與試劑盒研究,服務(wù)范圍遍及3133多個(gè)國(guó)家。 StressMarq公司的核心技術(shù)領(lǐng)域?yàn)榧?xì)胞應(yīng)激(尤其是熱休克蛋白(HSP)領(lǐng)域,領(lǐng)先全球),離子通道,載體研究,同時(shí)在神經(jīng)科學(xué)領(lǐng)域推出特有的具有生物活性的Tau蛋白與A-突觸核蛋白。產(chǎn)品領(lǐng)域涉及到:細(xì)胞凋亡、細(xì)胞信號(hào)、通路和轉(zhuǎn)運(yùn)、細(xì)胞器標(biāo)志物、熱休克、神經(jīng)生物學(xué)、神經(jīng)科學(xué)、氧化應(yīng)激、磷酸化運(yùn)輸?shù)取3颂峁┯糜谶M(jìn)一步研究的相關(guān)工具外,Str