scholarly journals RBM24 exacerbates bladder cancer progression by forming a Runx1t1/TCF4/miR-625-5p feedback loop

2021 ◽  
Author(s):  
Yue-Wei Yin ◽  
Kai-Long Liu ◽  
Bao-Sai Lu ◽  
Wei Li ◽  
Ya-Lin Niu ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Bladder Cancer ◽  
Cell Fate ◽  
Cancer Progression ◽  
Mrna Stability ◽  
Feedback Loop ◽  
Rna Binding ◽  
Binding Motif

AbstractRNA–binding motif protein 24 (RBM24) acts as a multifunctional determinant of cell fate, proliferation, apoptosis, and differentiation during development by regulating premRNA splicing and mRNA stability. It is also implicated in carcinogenesis, but the functions of RBM24 in bladder cancer (BC) remain unclear. In the present study, we revealed that RBM24 was upregulated in BC tissues. Importantly, we found that a higher level of RBM24 was correlated with poor prognosis in BC patients. Overexpression of RBM24 promoted BC cell proliferation, while depletion of RBM24 inhibited BC cell proliferation in vivo and in vitro. Mechanistically, RBM24 positively regulated Runx1t1 expression in BC cells by binding to and enhancing Runx1t1 mRNA stability. Furthermore, Runx1t1 in turn promoted RBM24 expression by interacting with the transcription factor TCF4 and suppressing the transcription of miR-625-5p, which directly targets RBM24 and suppresses RBM24 expression. RBM24-regulated BC cell proliferation was moderated via the Runx1t1/TCF4/miR-625-5p feedback loop. These results indicate that the RBM24/Runx1t1/TCF4/miR-625-5p positive feedback loop participates in BC progression. Disruption of this pathway may be a potential therapeutic strategy for BC treatment.

scholarly journals Upregulation of RBM24 Exacerbates Bladder Cancer Progression by Formatting Runx1t1/TCF4/miR-625-5p Feedback Loop

2020 ◽  
Author(s):  
Yue-Wei Yin ◽  
Kai-Long Liu ◽  
Bao-Sai Lu ◽  
Wei Li ◽  
Ya-Lin Niu ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Transcription Factor ◽  
Cancer Progression ◽  
Mrna Stability ◽  
Feedback Loop ◽  
Rna Binding ◽  
Luciferase Assay ◽  
Proximity Ligation Assay ◽  
Binding Motif ◽  
Mrna Levels

Abstract Background: RNA-binding motif protein 24 (RBM24) acts as a multifunctional determinant of cell fate, proliferation, apoptosis, and differentiation during development through regulation of pre-mRNA splicing and mRNA stability. It is also implicated in carcinogenesis, but the functions of RBM24 in bladder cancer (BC) remains unclear.Methods: Cell viability was examined by colony forming and MTT assays. Real-time quantitative PCR (RT-qPCR) and western blot analysis were used to detect the protein and mRNA levels. Co-immunoprecipitation (CoIP) and proximity ligation assay (PLA) were used to determine the protein-protein interaction. Chromatin immunoprecipitation (ChIP), RNA immunoprecipitation (RIP), and oligo pull-down assays were used to verify DNA/RNA–protein interactions. Luciferase assay analysis was used to detect effects on transcription factor activity.Results: In the present study, we revealed that RBM24 was upregulated in BC tissues. Importantly, we found that higher level of RBM24 was correlated with poor prognosis in BC patients. Overexpression of RBM24 promoted while depletion of RBM24 inhibited BC cell proliferation in vivo and in vitro. Mechanically, RBM24 positively regulated Runx1t1 expression in BC cells by binding to and enhancing Runx1t1 mRNA stability. Runx1t1 in turn promoted RBM24 expression by interacting with TCF4. Furthermore, Runx1t1 in turn promoted RBM24 expression by interacting with the transcription factor TCF4 and depressing transcription of miR-625-5p, which directly targets and normally suppresses RBM24 expression. RBM24-regulated BC cells proliferation was moderated via the Runx1t1/TCF4/miR-625-5p feedback loop.Conclusions: In summary, these results indicate that a RBM24/Runx1t1/TCF4/miR-625-5p positive feedback loop plays a key role in BC oncogenesis. Disruption of this pathway may be a potential therapeutic strategy for BC treatment.

scholarly journals RBMX suppresses tumorigenicity and progression of bladder cancer by interacting with the hnRNP A1 protein to regulate PKM alternative splicing

Oncogene ◽  
2021 ◽  
Author(s):  
Qiuxia Yan ◽  
Peng Zeng ◽  
Xiuqin Zhou ◽  
Xiaoying Zhao ◽  
Runqiang Chen ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Alternative Splicing ◽  
Rna Binding ◽  
Aerobic Glycolysis ◽  
Histological Grade ◽  
Migration And Invasion ◽  
Binding Motif ◽  
Hnrnp A1

AbstractThe prognosis for patients with metastatic bladder cancer (BCa) is poor, and it is not improved by current treatments. RNA-binding motif protein X-linked (RBMX) are involved in the regulation of the malignant progression of various tumors. However, the role of RBMX in BCa tumorigenicity and progression remains unclear. In this study, we found that RBMX was significantly downregulated in BCa tissues, especially in muscle-invasive BCa tissues. RBMX expression was negatively correlated with tumor stage, histological grade and poor patient prognosis. Functional assays demonstrated that RBMX inhibited BCa cell proliferation, colony formation, migration, and invasion in vitro and suppressed tumor growth and metastasis in vivo. Mechanistic investigations revealed that hnRNP A1 was an RBMX-binding protein. RBMX competitively inhibited the combination of the RGG motif in hnRNP A1 and the sequences flanking PKM exon 9, leading to the formation of lower PKM2 and higher PKM1 levels, which attenuated the tumorigenicity and progression of BCa. Moreover, RBMX inhibited aerobic glycolysis through hnRNP A1-dependent PKM alternative splicing and counteracted the PKM2 overexpression-induced aggressive phenotype of the BCa cells. In conclusion, our findings indicate that RBMX suppresses BCa tumorigenicity and progression via an hnRNP A1-mediated PKM alternative splicing mechanism. RBMX may serve as a novel prognostic biomarker for clinical intervention in BCa.

scholarly journals Long Noncoding RNA EGFR-AS1 Promotes Cell Proliferation by Increasing EGFR mRNA Stability in Gastric Cancer

2018 ◽  
Vol 49 (1) ◽  
pp. 322-334 ◽  
Author(s):  
Jiaojiao Hu ◽  
Yingying Qian ◽  
Lipan Peng ◽  
Ling Ma ◽  
Tianzhu Qiu ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Cell Proliferation ◽  
Cancer Progression ◽  
Mrna Stability ◽  
Noncoding Rna ◽  
Synthesis Inhibitor ◽  
Egfr Expression ◽  
Gastric Cancer Progression

Background/Aims: LncRNA EGFR-AS1 is an antisense transcript of EGFR, which plays a key role in gastric cancer progression. This study was aimed to explore the effects of lncRNA EGFR-AS1 on GC and the underling mechanisms. Methods: The silencing of EGFR-AS1 expression was performed by using EGFR-AS1 shRNA lentivirus in MGC803 and SGC-7901 GC cell. The levels of lncRNA EGFR-AS1 and EGFR were detected by qPCR and western blot. Cell proliferation was assessed by CCK-8, EdU, and colony formation assays. The EGFR mRNA stability was explored by using RNA synthesis inhibitor α-amanitin. Results: In our study, EGFR-AS1 significantly up-regulated in GC tissues and correlated with tumor size. And the expression of EGFR-AS1 positively correlated with EGFR in tissues. Moreover, knock-down of EGFR-AS1 inhibited the proliferation of GC cells via suppressing EGFR-dependent PI3K/AKT pathway in vitro and in vivo. Mechanismly, depletion of EGFR-AS1 was found to decrease EGFR expression by reduction of EGFR mRNA stability. Conclusion: Our findings suggested that EGFR-AS1 might have an oncogenic effect on GC and serve as a potential target of GC.

scholarly journals Circ-CTNNB1 Drives Aerobic Glycolysis and Osteosarcoma Progression via m6A Modification Through Interacting With RBM15

2021 ◽  
Author(s):  
Hucheng Liu ◽  
Jun Xiao ◽  
Bo Li ◽  
Yajun Chen ◽  
Jin Zeng ◽  
...  
Keyword(s):  
Cancer Progression ◽  
Rna Binding ◽  
Aerobic Glycolysis ◽  
Ectopic Expression ◽  
Phosphoglycerate Kinase ◽  
Binding Motif ◽  
Mobility Shift ◽  
Underlying Mechanisms

Abstract Background In a previous study, we have identified that circ-CTNNB1 (a circular RNA derived from CTNNB1) drives cancer progression through the activation of the Wnt/β-catenin signaling pathway in various tumors. However, the functions of circ-CTNNB1 in regulating osteosarcoma (OS, a highly malignant bone tumor in children and adolescents) remain unclear. In this study, we aimed to assess the role of circ-CTNNB1 in OS and identify the underlying mechanisms, which may contribute to the exploration of a potential therapeutic strategy for OS. Methods Circ-CTNNB1 was analyzed by qRT-PCR, and the results were confirmed by Sanger sequencing. The interaction and effects between circ-CTNNB1 and RNA binding motif protein 15 (RBM15) were analyzed through biotin-labeled RNA pull-down and mass spectrometry, in vitro binding, and RNA electrophoretic mobility shift assays. In vitro and in vivo experiments were performed to evaluate the biological functions and underlying mechanisms of circ-CTNNB1 and RBM15 in OS cells. Results Circ-CTNNB1 was highly expressed in OS tissues and predominantly detected in the nucleus of OS cells. Ectopic expression of circ-CTNNB1 promoted the growth, invasion, and metastasis of OS cells in vitro and in vivo. Mechanistically, circ-CTNNB1 interacted with RBM15 and subsequently promoted the expression of hexokinase 2 (HK2), glucose-6-phosphate isomerase (GPI), and phosphoglycerate kinase 1 (PGK1) through N6-methyladenosine (m6A) modification to facilitate the glycolysis process and activate OS progression. Conclusions These results indicate that oncogenic circ-CTNNB1 drives aerobic glycolysis and OS progression by facilitating RBM15-mediated m6A modification.

scholarly journals The lncRNA DLX6-AS1 promoted cell proliferation, invasion, migration and epithelial-to-mesenchymal transition in bladder cancer via modulating Wnt/β-catenin signaling pathway

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Jinan Guo ◽  
Zhixin Chen ◽  
Hongtao Jiang ◽  
Zhou Yu ◽  
Junming Peng ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Bladder Cancer ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Cancer Progression ◽  
Bladder Cancer Cell ◽  
Mesenchymal Transition ◽  
Bladder Cancer Cells

Abstract Background Bladder cancer is the most common human urological malignancies with poor prognosis, and the pathophysiology of bladder cancer involves multi-linkages of regulatory networks in the bladder cancer cells. Recently, the long noncoding RNAs (lncRNAs) have been extensively studied for their role on bladder cancer progression. In this study, we evaluated the expression of DLX6 Antisense RNA 1 (DLX6-AS1) in the cancerous bladder tissues and studied the possible mechanisms of DLX6-AS1 in regulating bladder cancer progression. Methods Gene expression was determined by qRT-PCR; protein expression levels were evaluated by western blot assay; in vitro functional assays were used to determine cell proliferation, invasion and migration; nude mice were used to establish the tumor xenograft model. Results Our results showed the up-regulation of DLX6-AS1 in cancerous bladder cancer tissues and bladder cell lines, and high expression of DLX6-AS1 was correlated with advance TNM stage, lymphatic node metastasis and distant metastasis. The in vitro experimental data showed that DLX6-AS1 overexpression promoted bladder cancer cell growth, proliferation, invasion, migration and epithelial-to-mesenchymal transition (EMT); while DLX6-AS1 inhibition exerted tumor suppressive actions on bladder cancer cells. Further results showed that DLX6-AS1 overexpression increased the activity of Wnt/β-catenin signaling, and the oncogenic role of DLX6-AS1 in bladder cancer cells was abolished by the presence of XAV939. On the other hand, DLX6-AS1 knockdown suppressed the activity of Wnt/β-catenin signaling, and the tumor-suppressive effects of DLX6-AS1 knockdown partially attenuated by lithium chloride and SB-216763 pretreatment. The in vivo tumor growth study showed that DLX6-AS1 knockdown suppressed tumor growth of T24 cells and suppressed EMT and Wnt/β-catenin signaling in the tumor tissues. Conclusion Collectively, the present study for the first time identified the up-regulation of DLX6-AS1 in clinical bladder cancer tissues and in bladder cancer cell lines. The results from in vitro and in vivo assays implied that DLX6-AS1 exerted enhanced effects on bladder cancer cell proliferation, invasion and migration partly via modulating EMT and the activity of Wnt/β-catenin signaling pathway.

scholarly journals RBM8A Promotes Glioblastoma Growth and Invasion Through the Notch/STAT3 Pathway

2021 ◽  
Vol 11 ◽  
Author(s):  
Yan Lin ◽  
Lei Wei ◽  
Beiquan Hu ◽  
Jinyan Zhang ◽  
Jiazhang Wei ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Rna Binding ◽  
The Cancer Genome Atlas ◽  
Biological Behavior ◽  
Binding Motif ◽  
Sequencing Data ◽  
Stat3 Pathway ◽  
Genome Atlas

BackgroundGlioblastoma (GBM) is a prevalent brain malignancy with an extremely poor prognosis, which is attributable to its invasive biological behavior. The RNA-binding motif protein 8A (RBM8A) has different effects on various human cancers. However, the role of RBM8A in GBM progression remains unclear.MethodsWe investigated the expression levels of RBM8A in 94 GBM patients and explored the correlation between RBM8A expression and patient prognosis. Using in vitro and in vivo assays, combined with GBM sequencing data from the Cancer Genome Atlas (TCGA) and the Chinese Glioma Genome Atlas (CGGA), we examined whether and how RBM8A contributes to GBM progression.ResultsRBM8A was up-regulated in GBM tissues, and its higher expression correlated with worse prognosis. Knockdown of RBM8A inhibited GBM progression and invasion ability both in vitro and in vivo. On the contrary, overexpression of RBM8A promoted GBM progression and invasion ability. Enrichment analysis of differentially expressed genes in GBM data identified the Notch1/STAT3 network as a potential downstream target of RBM8A, and this was supported by molecular docking studies. Furthermore, we demonstrated that RBM8A regulates the transcriptional activity of CBF1. The γ-secretase inhibitor DAPT significantly reversed RBM8A-enhanced GBM cell proliferation and invasion, and was associated with down-regulation of p-STAT3 and Notch1 protein. Finally, the gene set variance analysis score of genes involved in regulation of the Notch1/STAT3 network by RBM8A showed good diagnostic and prognostic value for GBM.ConclusionsRBM8A may promote GBM cell proliferation and migration by activating the Notch/STAT3 pathway in GBM cells, suggesting that RBM8A may serve as a potential therapeutic target for the treatment of GBM.

scholarly journals Circular RNA circ-ZKSCAN1 inhibits bladder cancer progression through miR-1178-3p/p21 axis and acts as a prognostic factor of recurrence

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Junming Bi ◽  
Hongwei Liu ◽  
Wei Dong ◽  
Weibin Xie ◽  
Qingqing He ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Bladder Cancer ◽  
Cancer Progression ◽  
Tumor Grade ◽  
Luciferase Reporter ◽  
Migration And Invasion ◽  
Rank Test ◽  
Circular Rnas

Abstract Background Circular RNAs (circRNAs) represent a subclass of regulatory RNAs that have been shown to have significant regulatory roles in cancer progression. However, the biological functions of circRNAs in bladder cancer (BCa) are largely unknown. Methods Cell invasion models were established, and invasion-related circRNAs were detected by qPCR. Using above method, circ-ZKSCAN1 was picked out for further study. Circ-ZKSCAN1 expression and survival analyses were performed through qPCR. The survival curves were generated by the Kaplan-Meier method, and the log-rank test was used to assess the significance. Cell proliferation, migration and invasion were examined to investigate the function of circ-ZKSCAN1. Tumorigenesis in nude mice was assessed to determine the effect of circ-ZKSCAN1 in bladder cancer. Biotin-coupled probe pull-down assays, FISH and luciferase reporter assays were conducted to confirm the relationship between circ-ZKSCAN1 and microRNA. RNA-seq revealed different molecular changes in downstream genes. Results Here, we found that circ-ZKSCAN1 was downregulated in BCa tissues and cell lines. Circ-ZKSCAN1 levels were associated with survival, tumor grade, pathological T stage and tumor recurrence. Overexpressed circ-ZKSCAN1 inhibits cell proliferation, migration, invasion and metastasis in vitro and in vivo. Mechanistically, we demonstrated that circ-ZKSCAN1 upregulated p21 expression by sponging miR-1178-3p, which suppressed the aggressive biological behaviors in bladder cancer. Conclusions These results reveal that Circ-ZKSCAN1 acts as a tumor suppressor via a novel circ-ZKSCAN1/miR-1178-3p/p21 axis, which have the important role in the proliferation, migration and invasion ablitities of BCa cells and provide a novel perspective on circRNAs in BCa progression.

scholarly journals m6A methyltransferase RBM15 promotes cardiomyocytes survival under hypoxia by increasing Thbs4 RNA methylation and mediating PI3K/Akt signaling

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
H Cheng ◽  
X.Y Song ◽  
J.Q Xue ◽  
L Chen ◽  
R.D Xu ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Rna Binding ◽  
Rna Binding Proteins ◽  
Basic Mechanism ◽  
Vital Role ◽  
Rna Modification ◽  
Binding Motif ◽  
Funding Source

Abstract Background mRNA modifications constitute ancient mechanisms in regulating gene expression after transcription. N6-methyladenosis (m6A), which is the most prevalent internal RNA modification, is not only installed by m6A methyltransferases, removed by demethylases, but also specifically bounded by RNA-binding proteins. As a significant component in the m6A methyltransferase complex, RNA binding motif protein 15 (RBM15) plays a vital role in m6A methylation. Nevertheless, its function and mechanism in myocardial infarction (MI) remain poorly defined. Purpose To investigate the role and mechanism of RBM15 in regulating its targets through m6A methylation in MI. The research results will not only add new content to the basic mechanism of myocardial protection but also provide new ideas and new targets for the prevention and treatment of MI. Methods Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used to clarify the total m6A level, and Reverse transcription quantitative real-time PCR (RT-qPCR) and Western blot were used to determine the expression of RBM15 in normal and MI tissues. Then the effects of RBM15 on cardiomyocytes were clarified using apoptosis assay, and cell proliferation assay. Methylated RNA immunoprecipitation sequencing (MeRIP-seq), and transcriptomic RNA sequencing (RNA-seq) were used to perform the regulator mechanism of RBM15 on target gene Thbs4 in MI. Results In this research, we showed that total m6A methylation was increased in MI, and RBM15 was a main factor involved with this process. Silencing RBM15 remarkably decreased cell proliferation and increased apoptosis in vitro, and resulted in severe cardiac remodeling and further exacerbation of cardiac dysfunction in vivo, whereas its overexpression caused the opposite effects. Then, Thbs4 was identified as a direct downstream target of RBM15, and RBM15 induced m6A methylation on the 3'UTR of Thbs4 pre-mRNA. We also found that it showed faster Thbs4 mRNA decay and exhibited decreased mRNAs and levels of protein expression in RBM15-deficient cardiomyocytes under hypoxia. Furthermore, we confirmed that RBM15 contributed significantly to regulate the PI3k/Akt pathway. Conclusions Our work uncovers a complex RBM15-Thbs4-PI3K/Akt regulatory model based on m6A methylation and provides a new insight into the epi-transcriptomic dysregulation in MI development. Funding Acknowledgement Type of funding source: Public grant(s) – National budget only. Main funding source(s): National Natural Science Foundation of China

scholarly journals Transcriptomic Analysis Identified ARHGAP Family as a Novel Biomarker Associated With Tumor-Promoting Immune Infiltration and Nanomechanical Characteristics in Bladder Cancer

2021 ◽  
Vol 9 ◽  
Author(s):  
Chen Yang ◽  
Siqi Wu ◽  
Zezhong Mou ◽  
Quan Zhou ◽  
Zheyu Zhang ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Bladder Cancer ◽  
Cancer Progression ◽  
Adhesive Force ◽  
Cell Infiltration ◽  
Invasion And Migration ◽  
Immune Infiltration ◽  
Cell Height

Bladder cancer (BCa) is a common lethal urinary malignancy worldwide. The role of ARHGAP family genes in BCa and its association with immuno-microenvironment remain largely unknown. ARHGAP family expression and immune infiltration in BCa were analyzed by bioinformatics analysis. Then, we investigated cell proliferation, invasion, and migration in vivo and in vitro of the ARHGAP family. Furthermore, atomic force microscopy (AFM) was employed in measuring cellular mechanical properties of BCa cells. The results demonstrated that ARHGAP family genes correlate with a tumor-promoting microenvironment with a lower Th1/Th2 cell ratio, higher DC cell infiltration, higher Treg cell infiltration, and T-cell exhaustion phenotype. Silencing ARHGAP5, ARHGAP17, and ARHGAP24 suppressed BCa cell proliferation, migration, and metastasis. Knocking down of ARHGAPs in T24 cells caused a relatively higher Young’s modulus and lower adhesive force and cell height. Taken together, ARHGAP family genes promote BCa progressing through establishing a tumor-promoting microenvironment and promoting cancer progression.

scholarly journals Splicing factor SRSF1 promotes breast cancer progression via oncogenic splice switching of PTPMT1

2021 ◽  
Vol 40 (1) ◽  
Author(s):  
Jun-Xian Du ◽  
Yi-Hong Luo ◽  
Si-Jia Zhang ◽  
Biao Wang ◽  
Cong Chen ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Progression ◽  
High Risk Group ◽  
Clinical Samples ◽  
Binding Motif ◽  
Ki 67 ◽  
Tissue Samples

Abstract Background Intensive evidence has highlighted the effect of aberrant alternative splicing (AS) events on cancer progression when triggered by dysregulation of the SR protein family. Nonetheless, the underlying mechanism in breast cancer (BRCA) remains elusive. Here we sought to explore the molecular function of SRSF1 and identify the key AS events regulated by SRSF1 in BRCA. Methods We conducted a comprehensive analysis of the expression and clinical correlation of SRSF1 in BRCA based on the TCGA dataset, Metabric database and clinical tissue samples. Functional analysis of SRSF1 in BRCA was conducted in vitro and in vivo. SRSF1-mediated AS events and their binding motifs were identified by RNA-seq, RNA immunoprecipitation-PCR (RIP-PCR) and in vivo crosslinking followed by immunoprecipitation (CLIP), which was further validated by the minigene reporter assay. PTPMT1 exon 3 (E3) AS was identified to partially mediate the oncogenic role of SRSF1 by the P-AKT/C-MYC axis. Finally, the expression and clinical significance of these AS events were validated in clinical samples and using the TCGA database. Results SRSF1 expression was consistently upregulated in BRCA samples, positively associated with tumor grade and the Ki-67 index, and correlated with poor prognosis in a hormone receptor-positive (HR+) cohort, which facilitated proliferation, cell migration and inhibited apoptosis in vitro and in vivo. We identified SRSF1-mediated AS events and discovered the SRSF1 binding motif in the regulation of splice switching of PTPMT1. Furthermore, PTPMT1 splice switching was regulated by SRSF1 by binding directly to its motif in E3 which partially mediated the oncogenic role of SRSF1 by the AKT/C-MYC axis. Additionally, PTPMT1 splice switching was validated in tissue samples of BRCA patients and using the TCGA database. The high-risk group, identified by AS of PTPMT1 and expression of SRSF1, possessed poorer prognosis in the stage I/II TCGA BRCA cohort. Conclusions SRSF1 exerts oncogenic roles in BRCA partially by regulating the AS of PTPMT1, which could be a therapeutic target candidate in BRCA and a prognostic factor in HR+ BRCA patient.

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