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第42卷第2期 李 雅,葛 文,张志伟,等. IL⁃17诱导的p300调控NSCLC细胞迁移、侵袭和MMP2表达的作用[J].
2022年2月 南京医科大学学报(自然科学版),2022,42(02):160-165 ·165 ·
A 4 p300 * B D 4 p300 ** *
shp300+IL⁃17
pcDNA3.1 pcDNA3.1/p300 B 3 MMP2 * shCTR shCTR+IL⁃17 3 MMP2 ▲
p300 —300 kDa 蛋白相对表达量 2 1 p300 —300 kDa 蛋白相对表达量 2 1 ▲ ▲
MMP2 —74 kDa MMP2 —74 kDa
0 0
shp300+IL⁃17
pcDNA3.1/p300
β⁃actin —42 kDa β⁃actin —42 kDa shCTR
pcDNA3.1 shCTR+IL⁃17
*
A:将H1299细胞转染pcDNA3.1/p300 48 h(与pcDNA3.1组比较,P < 0.01,n=3);B:转染shp300 质粒48 h时再用IL⁃17(50 ng/mL)刺激3 h
(与shCTR组比较,P < 0.05,P < 0.01;与shCTR+IL⁃17组比较,P < 0.05, P < 0.01,n=3)。
*
**
▲▲
▲
图7 Western blot检测过表达或敲低p300对MMP2表达的影响
Figure 7 Effects of p300 overexpression and knockdown on MMP2 expression by Western blot
子,能作为辅激活因子与转录因子结合,参与靶基 KOWNACKA M,et al. Elevated regulatory T cells,sur⁃
因表达的调控 [10⁃11] 。另 MMP2(也称明胶水解酶)是 face and intracellular CTLA⁃4 expression and interleukin⁃
MMP家族的重要成员,它不仅可水解Ⅳ型胶原蛋白 17 in the lung cancer microenvironment in humans[J].
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和其他生物活性分子,而且还能激活 MMP9 ,故
[5] CHANG Y H,YU C W,LAI L C,et al. Up⁃regulation of
它是肿瘤侵袭与转移重要的调节因子。
interleukin⁃17 expression by human papillomavirus type
为了进一步探讨 p300 表达对 NSCLC 细胞迁移
16 E6 in nonsmall cell lung cancer[J]. Cancer,2010,116
与侵袭及 MMP2 表达的影响,本研究在 H1299 细胞
(20):4800-4809
内进行了 p300 过表达和敲低的相关实验。结果表 [6] ZHAO C,LI Y,ZHANG W,et al. IL-17 induces NSCLC
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测,p300 的表达上调或许是通过增加 MMP2 的生 cells in rat Thy ⁃ 1 nephritis through p300 ⁃ mediated C/
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测还有待后续的实验加以证实。
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Oncol. 2021,17(2):183-196 [收稿日期] 2021-11-23
[4] KWIECIEN I,STELMASZCZYK⁃EMMEL A,POLUBIEC⁃ (本文编辑:唐 震)