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生長因子

細胞因子是指在組織培養(yǎng)中,除了氨基酸、維生素、葡萄糖以及無機鹽等正常成分之外,可以代替培養(yǎng)基血清高分子物質從而促進細胞生長、分化、存活、炎癥反應和組織修復的物質。是具有刺激細胞生長活性的細胞因子,通常是蛋白質或類固醇激素。

生長因子有很多種類,如血小板類生長因子(血小板來源生長因子PDGF、骨肉瘤來源生長因子ODGF)、表皮生長因子類(表皮生長因子EGF、轉化生長因子TGFα和TGFβ)、成纖維細胞生長因子(αFGF、βFGF)、類胰島素生長因子(IGF-Ⅰ、IGF-Ⅱ)、神經生長因子(NGF)、白細胞介素類生長因子(IL-1、IL-1、IL-3等)、紅細胞生長素(EPO)、集落刺激因子(CSF)等。

華美生物生長因子蛋白幾乎涵蓋了所有細胞因子及其受體,這里展示了部分生長因子蛋白產品圖:

產品名稱 貨號 規(guī)格
Recombinant Human Insulin-like growth factor I protein (IGF1), partial (Active) CSB-AP002521HU 100ug
Recombinant Human Insulin-like growth factor I protein (IGF1),15N Stable Isotope Labeled (Active) CSB-AP002531HU 500ug/100ug/10ug
Recombinant Human Insulin-like growth factor I protein (IGF1) CSB-AP002541HU 1mg(1mg*1 or 500ug*2)/500μg/100μg
Recombinant Human Insulin-like growth factor II protein (IGF2) CSB-AP002551HU 500ug/100ug/10ug
Recombinant Human Insulin-like growth factor I protein (IGF1) (Active) CSB-AP002561HU 50mg/20mg/5mg/1mg(1mg*1 or 500ug*2)
Recombinant Human Pro-epidermal growth factor (EGF), partial (Active) CSB-AP002581HU 1mg(1mg*1 or 500ug*2)/500μg/100μg
Recombinant Human Vascular endothelial growth factor A protein (VEGFA) CSB-AP002601HU 500ug/100ug/10ug
Recombinant Human Epigen protein (EPGN), partial (Active) CSB-AP002611HU 500ug/100ug/5ug
Recombinant?Human?Proepiregulin (EREG), partial? (Active) CSB-AP002621HU 500ug/100ug/5ug
Recombinant Human Platelet-derived growth factor subunit B protein (PDGFB) CSB-AP002631HU 1mg(1mg*1 or 500ug*2)/500μg/250μg/100μg/10μg/2μg
Recombinant Human Amphiregulin protein (AREG), partial (Active) CSB-AP002641HU 500ug/100ug/10ug
Recombinant Human Proheparin-binding EGF-like growth factor [Cleaved into: Heparin-binding EGF-like growth factor protein (HBEGF) CSB-AP002651HU 500ug/100ug/10ug
Recombinant Human CCN family member 1 (CCN1) (Active) CSB-AP002661HU 500ug/100ug/5ug
Recombinant Human Prokineticin-1 protein (PROK1) CSB-AP002671HU 500ug/100ug/5ug
Recombinant Human Neurotrophin-4 protein (NTF4) CSB-AP002831HU 500ug/100ug/10ug
Recombinant Human Ciliary neurotrophic factor protein (CNTF) CSB-AP002841HU 500ug/100ug/5ug
Recombinant Human Pro-neuregulin-1, membrane-bound isoform (NRG1), partial (Active) CSB-AP002851HU 500ug/100ug/10ug
Recombinant Human Pro-neuregulin-1, membrane-bound isoform protein (NRG1), partial (Active) CSB-AP002861HU 500ug/100ug/10ug
Recombinant Human Probetacellulin [Cleaved into: Betacellulin protein (BTC), partial (Active) CSB-AP002871HU 500ug/100ug/5ug
Recombinant Human Glial cell line-derived neurotrophic factor protein (GDNF) CSB-AP002881HU 500ug/100ug/10ug

如前所述,生長因子涉及許多家族,包括成纖維細胞生長因子(FGFs),轉化生長因子(TGFs),血管內皮生長因子(VEGFs),血小板衍生生長因子(PDGFs)和神經營養(yǎng)因子等。這里簡單的介紹了幾種生長因子及對應受體。

成纖維細胞生長因子(FGFs),該基因突變與多種疾病相關,例如心血管疾病、骨關節(jié)炎、肝細胞癌、椎間盤穩(wěn)態(tài)和低磷血癥。FGF家族包括FGF-1至FGF-23的22個成員,FGF-15只存在于小鼠中。除四個成員(FGF11-FGF14)外,其他所有的FGF都能與FGF受體結合。

轉化生長因子(也稱為腫瘤生長因子或TGF),指兩類多肽生長因子,轉化生長因子α(TGFα)和轉化生長因子β(TGFβ)。 TGFα和TGFβ是自分泌生長因子,在正常組織中,分別是有效的啟動子和細胞生長抑制劑。TGFα可參與肝癌發(fā)生和發(fā)病過程。TGFβ一般是通過與TGFβ受體結合后起作用,有資料表明,在結腸直腸腺瘤中,存在人體中的三種TGFβ受體(TGFβ1、TGFβ2和TGFβ3)的表達均上調,而且與晚期腫瘤特征直接相關。

血管內皮生長因子,也稱為血管通透因子VEGF,是由刺激血管形成的細胞和血管內皮細胞的促分裂原產生的生長因子亞家族。血管生長因子家族中有五個成員,包括VEGF-A,VEGF-B,VEGF-C,VEGF-D和胎盤生長因子(PlGF)。