CCL6,也称为C10或MRP-1,是一种属于C-C趋化因子家族的细胞因子。CCL6基因编码的蛋白质是一种趋化因子,能够吸引和激活免疫细胞,特别是巨噬细胞和淋巴细胞,对免疫系统的调节和炎症反应具有重要意义。CCL6在多种生理和病理过程中发挥作用,包括免疫监视、炎症反应、肿瘤发生和转移等。
CCL6的表达和功能受到多种因素的调控。例如,CCL6基因被L-Myc和c-Myc癌蛋白直接调控,其表达水平与肿瘤的发生和转移密切相关[4]。此外,CCL6还能够被维生素A及其衍生物抑制,表明其在病毒感染和免疫调节中的作用[3]。
CCL6在多种疾病中发挥重要作用。例如,CCL6的表达与前列腺癌的进展和不良预后相关,肿瘤相关巨噬细胞(TAMs)中的CCL6表达升高,并与肿瘤的生长和侵袭性密切相关[2]。在乳腺癌转移过程中,CCL6的表达和信号通路被动态调节,是抗转移免疫治疗的一个潜在靶点[1]。此外,CCL6还在肺部炎症和组织重塑中发挥关键作用,能够被IL-13诱导并促进炎症反应和肺泡重塑[5]。
CCL6的表达和功能还受到细胞类型和微环境的影响。例如,在正常脑组织中,小胶质细胞是CCL6的主要来源,CCL6能够介导小胶质细胞和星形胶质细胞的迁移,并可能参与细胞间通讯[6]。在结肠中,深隐窝分泌细胞(DCS)表达CCL6等免疫调节基因,可能在维持结肠健康中发挥重要作用[7]。在嗜酸性粒细胞中,干细胞因子(SCF)能够通过MEK/MAPK信号通路促进CCL6的表达和嗜酸性粒细胞的存活[8]。
综上所述,CCL6是一种重要的C-C趋化因子,参与多种生理和病理过程。CCL6的表达和功能受到多种因素的调控,包括癌蛋白、维生素A、细胞因子和信号通路等。CCL6在多种疾病中发挥重要作用,包括肿瘤、炎症和免疫疾病等。CCL6的研究有助于深入理解免疫调节和炎症反应的机制,为疾病的治疗和预防提供新的思路和策略。
参考文献:
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2. Masetti, Michela, Carriero, Roberta, Portale, Federica, Gordon, Siamon, Di Mitri, Diletta. 2021. Lipid-loaded tumor-associated macrophages sustain tumor growth and invasiveness in prostate cancer. In The Journal of experimental medicine, 219, . doi:10.1084/jem.20210564. https://pubmed.ncbi.nlm.nih.gov/34919143/
3. Lee, Heetae, Lee, Giljae, Cho, You-Hee, Song, Youngcheon, Ko, GwangPyo. 2023. Chemokine CCL6 Plays Key Role in the Inhibitory Effect of Vitamin A on Norovirus Infection. In Journal of microbiology (Seoul, Korea), 61, 579-587. doi:10.1007/s12275-023-00047-3. https://pubmed.ncbi.nlm.nih.gov/37233907/
4. Yi, Fenghua, Jaffe, Ronald, Prochownik, Edward V. . The CCL6 chemokine is differentially regulated by c-Myc and L-Myc, and promotes tumorigenesis and metastasis. In Cancer research, 63, 2923-32. doi:. https://pubmed.ncbi.nlm.nih.gov/12782599/
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