Mir-22-3p Enhances the Chemosensitivity of Gastrointestinal Stromal Tumor Cell Lines to Cisplatin through PTEN/PI3K/Akt Pathway. 2018

Yugang Xu, and Ming Cheng, and Lei Mi, and Yunping Qiu, and Wenli Hao, and Leping Li
Department of General Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China AND Department of General Surgery, Tai'an Central Hospital, Tai'an, Shandong, China. 553932362@qq.com.

Mir-22-3p is associated with many important biological processes, including neuroprotection, tumorigenesis, and various other tumor progressions. Our study aimed to investigate the roles of Mir-22-3p in chemosensitivity of gastrointestinal stromal tumor (GIST-T1) cells to cisplatin and explore its underlying mechanisms. Mir-22-3p high-expressing cell line was established by transfecting GIST-T1 cell line cells with Mir-22-3p mimic. After treatment with cisplatin (10 μM), Cell counting kits-8 (CCK-8) method was used to detect the cell viability. Flow cytometry was applied to measure the degree of cell apoptosis. Scratch wound healing test was used to detect the migration ability of cells. The protein and mRNA levels of the phosphatase and tensin homolog deleted on chromosome ten (PTEN)/phosphatidylinositol 3 kinase (PI3K)/protein kinase B (Akt) pathway-related factors were analyzed by Western blot and qRT-PCR. The mRNA level of Mir-22-3p was increased in transfected GIST-T1 cells compared with that in control cells. The survival rate and Bcl-2/Bax ratio of GIST-T1 cells treated with both Mir-22-3p analogue and cisplatin were significantly decreased, while the apoptosis rate and protein level of caspase-3 were significantly increased (p<0.05). In addition, the mRNA and protein levels of PTENwere significantly increased in cells treated with both Mir-22-3p analogue and cisplatin (p<0.05), while the expression levels of PI3K and Akt were significantly decreased (p<0.05). Mir-22-3p overexpression can increase the chemosensitivity of cisplatin in human gastrointestinal stromal tumor cells by PTEN/PI3K/Akt pathway.

UI MeSH Term Description Entries
D002945 Cisplatin An inorganic and water-soluble platinum complex. After undergoing hydrolysis, it reacts with DNA to produce both intra and interstrand crosslinks. These crosslinks appear to impair replication and transcription of DNA. The cytotoxicity of cisplatin correlates with cellular arrest in the G2 phase of the cell cycle. Platinum Diamminodichloride,cis-Diamminedichloroplatinum(II),cis-Dichlorodiammineplatinum(II),Biocisplatinum,Dichlorodiammineplatinum,NSC-119875,Platidiam,Platino,Platinol,cis-Diamminedichloroplatinum,cis-Platinum,Diamminodichloride, Platinum,cis Diamminedichloroplatinum,cis Platinum
D005770 Gastrointestinal Neoplasms Tumors or cancer of the GASTROINTESTINAL TRACT, from the MOUTH to the ANAL CANAL. Gastrointestinal Cancer,Cancer of Gastrointestinal Tract,Cancer of the Gastrointestinal Tract,Neoplasms, Gastrointestinal,Cancer, Gastrointestinal,Cancers, Gastrointestinal,Gastrointestinal Cancers,Gastrointestinal Neoplasm,Gastrointestinal Tract Cancer,Gastrointestinal Tract Cancers,Neoplasm, Gastrointestinal
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000970 Antineoplastic Agents Substances that inhibit or prevent the proliferation of NEOPLASMS. Anticancer Agent,Antineoplastic,Antineoplastic Agent,Antineoplastic Drug,Antitumor Agent,Antitumor Drug,Cancer Chemotherapy Agent,Cancer Chemotherapy Drug,Anticancer Agents,Antineoplastic Drugs,Antineoplastics,Antitumor Agents,Antitumor Drugs,Cancer Chemotherapy Agents,Cancer Chemotherapy Drugs,Chemotherapeutic Anticancer Agents,Chemotherapeutic Anticancer Drug,Agent, Anticancer,Agent, Antineoplastic,Agent, Antitumor,Agent, Cancer Chemotherapy,Agents, Anticancer,Agents, Antineoplastic,Agents, Antitumor,Agents, Cancer Chemotherapy,Agents, Chemotherapeutic Anticancer,Chemotherapy Agent, Cancer,Chemotherapy Agents, Cancer,Chemotherapy Drug, Cancer,Chemotherapy Drugs, Cancer,Drug, Antineoplastic,Drug, Antitumor,Drug, Cancer Chemotherapy,Drug, Chemotherapeutic Anticancer,Drugs, Antineoplastic,Drugs, Antitumor,Drugs, Cancer Chemotherapy
D015398 Signal Transduction The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway. Cell Signaling,Receptor-Mediated Signal Transduction,Signal Pathways,Receptor Mediated Signal Transduction,Signal Transduction Pathways,Signal Transduction Systems,Pathway, Signal,Pathway, Signal Transduction,Pathways, Signal,Pathways, Signal Transduction,Receptor-Mediated Signal Transductions,Signal Pathway,Signal Transduction Pathway,Signal Transduction System,Signal Transduction, Receptor-Mediated,Signal Transductions,Signal Transductions, Receptor-Mediated,System, Signal Transduction,Systems, Signal Transduction,Transduction, Signal,Transductions, Signal
D017209 Apoptosis A regulated cell death mechanism characterized by distinctive morphologic changes in the nucleus and cytoplasm, including the endonucleolytic cleavage of genomic DNA, at regularly spaced, internucleosomal sites, i.e., DNA FRAGMENTATION. It is genetically programmed and serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth. Apoptosis, Extrinsic Pathway,Apoptosis, Intrinsic Pathway,Caspase-Dependent Apoptosis,Classic Apoptosis,Classical Apoptosis,Programmed Cell Death,Programmed Cell Death, Type I,Apoptoses, Extrinsic Pathway,Apoptoses, Intrinsic Pathway,Apoptosis, Caspase-Dependent,Apoptosis, Classic,Apoptosis, Classical,Caspase Dependent Apoptosis,Cell Death, Programmed,Classic Apoptoses,Extrinsic Pathway Apoptoses,Extrinsic Pathway Apoptosis,Intrinsic Pathway Apoptoses,Intrinsic Pathway Apoptosis
D045744 Cell Line, Tumor A cell line derived from cultured tumor cells. Tumor Cell Line,Cell Lines, Tumor,Line, Tumor Cell,Lines, Tumor Cell,Tumor Cell Lines
D046152 Gastrointestinal Stromal Tumors All tumors in the GASTROINTESTINAL TRACT arising from mesenchymal cells (MESODERM) except those of smooth muscle cells (LEIOMYOMA) or Schwann cells (SCHWANNOMA). Gastrointestinal Stromal Neoplasm,Gastrointestinal Stromal Neoplasms,Gastrointestinal Stromal Sarcoma,Gastrointestinal Stromal Tumor,Neoplasm, Gastrointestinal Stromal,Neoplasms, Gastrointestinal Stromal,Stromal Neoplasm, Gastrointestinal,Stromal Neoplasms, Gastrointestinal,Stromal Tumor, Gastrointestinal,Stromal Tumors, Gastrointestinal,Tumor, Gastrointestinal Stromal,Tumors, Gastrointestinal Stromal
D049109 Cell Proliferation All of the processes involved in increasing CELL NUMBER including CELL DIVISION. Cell Growth in Number,Cellular Proliferation,Cell Multiplication,Cell Number Growth,Growth, Cell Number,Multiplication, Cell,Number Growth, Cell,Proliferation, Cell,Proliferation, Cellular
D051057 Proto-Oncogene Proteins c-akt Protein-serine-threonine kinases that contain PLECKSTRIN HOMOLOGY DOMAINS and are activated by PHOSPHORYLATION in response to GROWTH FACTORS or INSULIN. They play a major role in cell metabolism, growth, and survival as a core component of SIGNAL TRANSDUCTION. Three isoforms have been described in mammalian cells. akt Proto-Oncogene Protein,c-akt Protein,AKT1 Protein Kinase,AKT2 Protein Kinase,AKT3 Protein Kinase,Akt-alpha Protein,Akt-beta Protein,Akt-gamma Protein,Protein Kinase B,Protein Kinase B alpha,Protein Kinase B beta,Protein Kinase B gamma,Protein-Serine-Threonine Kinase (Rac),Proto-Oncogene Protein Akt,Proto-Oncogene Protein RAC,Proto-Oncogene Proteins c-akt1,Proto-Oncogene Proteins c-akt2,Proto-Oncogene Proteins c-akt3,RAC-PK Protein,Rac Protein Kinase,Rac-PK alpha Protein,Rac-PK beta Protein,Related to A and C-Protein,c-akt Proto-Oncogene Protein,Akt alpha Protein,Akt beta Protein,Akt gamma Protein,Akt, Proto-Oncogene Protein,Protein, akt Proto-Oncogene,Protein, c-akt Proto-Oncogene,Proteins c-akt1, Proto-Oncogene,Proteins c-akt2, Proto-Oncogene,Proteins c-akt3, Proto-Oncogene,Proto Oncogene Protein Akt,Proto Oncogene Protein RAC,Proto Oncogene Proteins c akt,Proto Oncogene Proteins c akt1,Proto Oncogene Proteins c akt2,Proto Oncogene Proteins c akt3,Proto-Oncogene Protein, akt,Proto-Oncogene Protein, c-akt,RAC PK Protein,RAC, Proto-Oncogene Protein,Rac PK alpha Protein,Rac PK beta Protein,Related to A and C Protein,akt Proto Oncogene Protein,alpha Protein, Rac-PK,c akt Proto Oncogene Protein,c-akt, Proto-Oncogene Proteins,c-akt1, Proto-Oncogene Proteins,c-akt2, Proto-Oncogene Proteins,c-akt3, Proto-Oncogene Proteins

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