IL3(白细胞介素3)是一种由活化的T细胞、肥大细胞和自然杀伤细胞分泌的细胞因子,属于造血生长因子家族。其主要生物学功能是促进造血干细胞和多系祖细胞的增殖与分化,尤其对髓系细胞(如粒细胞、巨噬细胞、红细胞和巨核细胞)的发育至关重要。IL3通过结合细胞表面的IL3受体(由α链和共同β链组成)激活JAK-STAT、MAPK和PI3K信号通路,从而调控细胞存活、增殖和分化。该基因位于人类5号染色体(5q31.1),与GM-CSF和IL5基因相邻,三者构成细胞因子基因簇,共享受体β链(βc)。IL3基因突变较为罕见,但可能引起造血功能异常,如骨髓增生异常或免疫缺陷。过表达IL3可能导致骨髓过度增殖甚至白血病,而表达降低则可能引发血细胞减少或免疫应答减弱。IL3与某些过敏性疾病和自身免疫疾病相关,因其能激活肥大细胞和嗜碱性粒细胞释放组胺等炎症介质。在基因家族层面,IL3属于四螺旋束细胞因子家族,其成员具有相似的三维结构,并通过共享受体亚基实现功能冗余或协同作用。该家族还包括GM-CSF、IL5、IL6等,均参与免疫调节和造血过程。
The protein encoded by this gene is a potent growth promoting cytokine. This cytokine is capable of supporting the proliferation of a broad range of hematopoietic cell types. It is involved in a variety of cell activities such as cell growth, differentiation and apoptosis. This cytokine has been shown to also possess neurotrophic activity, and it may be associated with neurologic disorders. [provided by RefSeq, Jul 2008]
由该基因编码的蛋白质是一种有效的生长促进因子。这种细胞因子是能够支持范围广泛的造血细胞类型的增殖。它参与多种细胞活动如细胞生长,分化和凋亡的。这种细胞因子已显示也具有神经营养活性,并且它可以与神经系统疾病相关联。 [由RefSeq的,2008年7月提供]
IL3基因(以及对应的蛋白质)的细胞分布位置:
IL3基因的本体(GO)信息:
| 名称 |
|---|
| 4630 Jak-STAT signaling pathway [PATH:hsa04630] |
| 4151 PI3K-Akt signaling pathway [PATH:hsa04151] |
| 4060 Cytokine-cytokine receptor interaction [PATH:hsa04060] |
| 4210 Apoptosis [PATH:hsa04210] |
| 4640 Hematopoietic cell lineage [PATH:hsa04640] |
| 4664 Fc epsilon RI signaling pathway [PATH:hsa04664] |
| 5202 Transcriptional misregulation in cancers [PATH:hsa05202] |
| 5310 Asthma [PATH:hsa05310] |
| 名称 |
|---|
| Cytokine Signaling in Immune system |
| G beta:gamma signalling through PI3Kgamma |
| G-protein beta:gamma signalling |
| GPCR downstream signaling |
| GPVI-mediated activation cascade |
| Hemostasis |
| Immune System |
| Interleukin receptor SHC signaling |
| Interleukin-2 signaling |
| Interleukin-3, 5 and GM-CSF signaling |
| Platelet activation, signaling and aggregation |
| Signal Transduction |
| Signaling by GPCR |
| Signaling by Interleukins |
| 疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
| Anemia | 0.120542884 | 4 | 0 | BeFree_CTD_human |
| Adverse reaction to drug | 0.12 | 1 | 0 | CTD_human |
| Non-alcoholic Fatty Liver Disease | 0.12 | 1 | 0 | CTD_human |
| Leukopenia | 0.12 | 1 | 0 | CTD_human |
| Thrombocytopenia | 0.12 | 1 | 0 | CTD_human |
| Peripheral Neuropathy | 0.12 | 1 | 0 | CTD_human |
| Osteosarcoma | 0.080271442 | 2 | 0 | BeFree_RGD |
| Pyelonephritis | 0.08 | 1 | 0 | RGD |
| Prostatic Hyperplasia | 0.08 | 1 | 0 | RGD |
| Leukemia, Myelocytic, Acute | 0.011672 | 43 | 0 | BeFree |
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