1.中山大学中山医学院,广东 广州 510080
2.中山大学附属第一医院神经外科,广东 广州 510080
张译尹,硕士生,研究方向:垂体腺瘤发生机制,E-mail:958069148@qq.com
,共同第一作者;
收稿:2022-03-23,
纸质出版:2022-05-20
移动端阅览
张译尹,吴娜,李雪莉等.CircOMA1调控多巴胺受体促进泌乳素瘤耐药性[J].中山大学学报(医学科学版),2022,43(03):381-391.
ZHANG Yi-yin,WU Na,LI Xue-li,et al.CircOMA1 Promotes Resistance in Prolactinoma by Regulating Dopamine Receptors[J].Journal of Sun Yat-sen University(Medical Sciences),2022,43(03):381-391.
张译尹,吴娜,李雪莉等.CircOMA1调控多巴胺受体促进泌乳素瘤耐药性[J].中山大学学报(医学科学版),2022,43(03):381-391. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2022.0306.
ZHANG Yi-yin,WU Na,LI Xue-li,et al.CircOMA1 Promotes Resistance in Prolactinoma by Regulating Dopamine Receptors[J].Journal of Sun Yat-sen University(Medical Sciences),2022,43(03):381-391. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2022.0306.
目的
2
探究环状RNA hsa_circ_0002316(circOMA1)是否参与泌乳素瘤耐药调控及其作用机制是什么。
方法
2
通过RT-qPCR检测临床泌乳素瘤标本中circOMA1表达情况(5例敏感泌乳素瘤标本和12例耐药泌乳素瘤标本)。通过慢病毒载体构建稳定表达外源性circOMA1 MMQ细胞系模型进行体外实验,分为MMQ NC组及MMQ OMA1组。通过构建裸鼠皮下肿瘤模型进行体内实验,分为MMQ NC+卡麦角林(CAB)组、MMQ NC+溴隐亭(BRC)组、MMQ OMA1+CAB组、MMQ OMA1+BRC组。通过CCK8、Western blot、ELISA等表型实验检测circOMA1对耐药机制中的细胞增殖和泌乳素(PRL)分泌两个方面的影响。通过Western blot、ELISA、免疫组化等实验检测circOMA1对多巴胺受体表达的影响。通过TargetScan、CircInteractome等软件分析预测、 microRNA-145-5p(miR-145-5p) minic补救实验探究circOMA1调控多巴胺受体机制。
结果
2
RT-qPCR结果显示多巴胺受体激动剂(DAs)耐药泌乳素瘤中circOMA1表达升高(
P
<0.01)。在细胞实验及裸鼠皮下肿瘤实验中,与MMQ NC组相比,MMQ OMA1组DAs敏感性降低,细胞增殖水平和泌乳素分泌水平升高(
P
<0.05)。Western blot和免疫组化结果显示,MMQ OMA1组多巴胺2型受体(DRD2)表达下调,多巴胺5型受体(DRD5)表达上调,环3’,5’-单磷酸腺苷(cAMP)水平上调(
P
<0.05)。此外,在MMQ OMA1组中miR-145-5p表达下调,kelch重复序列和BTB结构域蛋白7(KBTBD7)mRNA及蛋白表达水平上调(
P
<0.05),然而MMQ OMA1组转染miR-145-5p minic后,KBTBD7表达下调,DRD2表达上调(
P
<0.05),表明过表达miR-145-5p逆转了circOMA1对KBTBD7的促进作用。
结论
2
circOMA1通过miR-145-5p/KBTBD7轴下调DRD2表达,降低泌乳素瘤对DAs敏感性,并且调控多巴胺受体表达激活cAMP通路促进泌乳素合成释放,从而促进泌乳素瘤耐药性。
Objective
2
To investigate whether hsa_circ_0002316 (circOMA1) is involved in drug resistance in prolactinoma and its mechanism.
Methods
2
RT-qPCR was used to dectect the expression of circOMA1 in clinical prolactinoma specimens including 5 dopamine receptor agonists (DAs)-sensitive prolactinomas and 12 DAs-resistant prolactinomas. MMQ cell lines with stable expression of exogenous circOMA1 were constructed by lentivirus vector infection for in vitro experiment, and were divided into MMQ NC group and MMQ OMA1 group. Xenograft tumor models in nude mice were established for in vivo experiment, and were divided into MMQ NC+cabergoline (CAB) group, MMQ NC+bromocriptine (BRC) group, MMQ OMA1+CAB group and MMQ OMA1+BRC group. CCK8, Western blot and ELISA were performed to detect the effects of circOMA1 on cell proliferation and secretion of prolactin (PRL) in drug resistance mechanism. Western blot, ELISA and immunohistochemistry were used to examine the effect of circOMA1 on dopamine receptor expression. The mechanism of circOMA1 regulating dopamine receptor was explored by TargetScan, CircInteractome and microRNA-145-5p (miR-145-5p) minic remediation experiment.
Results
2
RT-qPCR showed that circOMA1 expression was increased in DAs-resistant prolactinomas (
P
<
0.01). Compared with MMQ NC group, MMQ OMA1 group had lower DAs sensitivity and increased cell proliferation and prolactin secretion (
P
<
0.05) in vivo and in vitro. Western blot and immunohistochemical analysis showed that in MMQ OMA1 group, the expression of dopamine receptor type 2 (DRD2) was down-regulated, and the expression of dopamine receptor type 5 (DRD5), the cyclic 3 'and 5' -adenosine monophosphine (cAMP) was up-regulated (
P
<
0.05). In MMQ OMA1 group, miR-145-5p expression was down-regulated, kelch repeat sequence and BTB domain-containing protein 7 (KBTBD7) mRNA and protein expression was up-regulated (
P
<
0.05). After transfected with miR-145-5p minic, MMQ OMA1 group exhibited down-regulated KBTBD7 expression and up-regulated DRD2 expression (
P
<
0.05), which indicated that overexpression of miR-145-5p reversed the promoting effect of circOMA1 on KBTBD7.
Conclusion
2
CircOMA1 down-regulated DRD2 expression through miR-145-5p/KBTBD7 pathway to reduce the sensitivity of prolactinoma to DAs, and regulated the expression of dopamine receptors to activate the cAMP pathway and promote the synthesis and release of prolactin, thus promoting the drug resistance in prolactinoma.
Mehta GU , Lonser RR . Management of hormone-secreting pituitary adenomas [J]. Neuro Oncol , 2017 , 19 ( 6 ): 762 - 773 .
陈文立 , 姚顺 , 王梦琦 , 等 . 垂体腺瘤与认知功能相关研究进展 [J]. 中国神经精神疾病杂志 , 2019 , 45 ( 9 ): 569 - 572 .
Chen WL , Yao S , Wang MQ , et al . Research progress on pituitary adenoma and cognitive function [J]. Chin J Nervous Mental Dis , 2019 , 45 ( 9 ): 569 - 572 .
谭奕珩 , 罗美 , 朱永红 , 等 . 免疫检查点抑制剂在垂体腺瘤中的研究进展 [J]. 中国神经精神疾病杂志 , 2021 , 47 ( 8 ): 497 - 501 .
Tan YH , Luo M , Zhu YH , et al . Research progress of immune checkpoint inhibitors in pituitary adenomas [J]. Chin J Nervous Mental Dis , 2021 , 47 ( 8 ): 497 - 501 .
Molitch ME . Diagnosis and treatment of pituitary adenomas [J]. JAMA , 2017 , 317 ( 5 ): 516 .
Molitch ME . Pharmacologic resistance in prolactinoma patients [J]. Pituitary , 2005 , 8 ( 1 ): 43 - 52 .
Bueno C , Trarbach EB , Bronstein MD , et al . Cabergoline and prolactinomas: lack of association between DRD2 polymorphisms and response to treatment [J]. Pituitary , 2017 , 20 ( 3 ): 295 - 300 .
Wu ZB , Zheng WM , Su ZP , et al . Expression of D2RmRNA isoforms and ERmRNA isoforms in prolactinomas: correlation with the response to bromocriptine and with tumor biological behavior [J]. J Neurooncol , 2010 , 99 ( 1 ): 25 - 32 .
Li Q , Su Z , Liu J , et al . Dopamine receptor D2S gene transfer improves the sensitivity of GH3 rat pituitary adenoma cells to bromocriptine [J]. Mol Cell Endocrinol , 2014 , 382 ( 1 ): 377 - 384 .
Shimazu S , Shimatsu A , Yamada S , et al . Resistance to dopamine agonists in prolactinoma is correlated with reduction of dopamine D2 receptor long isoform mRNA levels [J]. Eur J Endocrinol , 2012 , 166 ( 3 ): 383 - 390 .
Hu B , Mao Z , Du Q , et al . miR-93-5p targets Smad7 to regulate the transforming growth factor-β1/Smad3 pathway and mediate fibrosis in drug-resistant prolactinoma [J]. Brain Research Bulletin , 2019 , 149 : 21 - 31 .
Xiao Z , Wang Z , Hu B , et al . MiR-1299 promotes the synthesis and secretion of prolactin by inhibiting FOXO1 expression in drug-resistant prolactinomas [J]. Biochem Biophys Res Commun , 2019 , 520 ( 1 ): 79 - 85 .
Du Q , Hu B , Feng Y , et al . circOMA1-mediated miR-145-5p suppresses tumor growth of nonfunctioning pituitary adenomas by targeting TPT1 [J]. J Clin Endocrinol Metab , 2019 , 104 ( 6 ): 2419 - 2434 .
刘衍挺 , 张勇 , 王宇 , 等 . 多巴胺受体亚型DRD2、DRD5在垂体瘤药物治疗中的作用 [J]. 中华医学杂志 , 2019 ( 22 ): 1703 - 1706 .
Liu YT , Zhang Y , Wang Y , et al . Role of dopamine receptor subtypes DRD2 and DRD5 in drug therapy of pituitary tumors [J]. Natl Med J Chin , 2019 ( 22 ): 1703 - 1706 .
Liu YT , Liu F , Cao L , et al . The KBTBD6/7-DRD2 axis regulates pituitary adenoma sensitivity to dopamine agonist treatment [J]. Acta Neuropathol , 2020 , 140 ( 3 ): 377 - 396 .
Tang X , Ren H , Guo M , et al . Review on circular RNAs and new insights into their roles in cancer [J]. Comput Struct Biotechnol J , 2021 , 19 : 910 - 928 .
Zhang M , Bai X , Zeng X , et al . circRNA-miRNA-mRNA in breast cancer [J]. Clin Chim Acta , 2021 , 523 : 120 - 130 .
Hong W , Xue M , Jiang J , et al . Circular RNA circ-CPA4/ let-7 miRNA/PD-L1 axis regulates cell growth, stemness, drug resistance and immune evasion in non-small cell lung cancer (NSCLC) [J]. J Exp Clin Cancer Res , 2020 , 39 ( 1 ): 149 .
Xu J , Wan Z , Tang M , et al . N(6)-methyladenosine-modified CircRNA-SORE sustains sorafenib resistance in hepatocellular carcinoma by regulating β-catenin signaling [J]. Mol Cancer , 2020 , 19 ( 1 ): 163 .
Weng H , Zeng L , Cao L , et al . circFOXM1 contributes to sorafenib resistance of hepatocellular carcinoma cells by regulating MECP2 via miR-1324 [J]. Mol Ther Nucleic Acids , 2021 , 23 : 811 - 820 .
Xu J , Ji L , Liang Y , et al . CircRNA-SORE mediates sorafenib resistance in hepatocellular carcinoma by stabilizing YBX1 [J]. Signal Transduct Target Ther , 2020 , 5 ( 1 ): 298 .
Liu X , Tang C , Wen G , et al . The mechanism and pathways of dopamine and dopamine agonists in prolactinomas [J]. Front Endocrinol (Lausanne) , 2018 , 9 : 768 .
Dang F , Nie L , Wei W . Ubiquitin signaling in cell cycle control and tumorigenesis [J]. Cell Death Differ , 2021 , 28 ( 2 ): 427 - 438 .
Pérez-Benavente B , Nasresfahani AF , Farràs R . Ubiquitin-regulated cell proliferation and cancer [J]. Adv Exp Med Biol , 2020 , 1233 : 3 - 28 .
Hu J , Yuan W , Tang M , et al . KBTBD7, a novel human BTB-kelch protein, activates transcriptional activities of SRE and AP-1 [J]. BMB Rep , 2010 , 43 ( 1 ): 17 - 22 .
Genau HM , Huber J , Baschieri F , et al . CUL3-KBTBD6/KBTBD7 ubiquitin ligase cooperates with GABARAP proteins to spatially restrict TIAM1-RAC1 signaling [J]. Mol Cell , 2015 , 57 ( 6 ): 995 - 1010 .
0
浏览量
603
下载量
1
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621
