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Hu H, Wang Y, Dong Y, Wang L, Chen Y, Zhou Y, Sun L. Knockdown of LIMD2 inhibits the progression of ovarian carcinoma through ERK1/2 pathway. Mol Biol Rep 2023; 50:8985-8993. [PMID: 37716918 DOI: 10.1007/s11033-023-08733-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/02/2023] [Indexed: 09/18/2023]
Abstract
BACKGROUND The incidence rate of ovarian carcinoma (OC) is the third of the female reproductive system malignant tumors, while its mortality rate ranks first among causes of female reproductive system tumor related death in the world. METHODS In the present research, we investigated the specific role of LIMD2 through LIMD2 knockdown in OC cells. RESULTS The results of online analysis and expression detection proved that LIMD2 was up-regulated in human OC tissues and cells. Knockdown of LIMD2 inhibited the proliferation, migration and invasion in OC cells. LIMD2 knockdown promoted the apoptosis, as well as the expression of Cleaved-Caspase3 and Bax. Importantly, knockdown of LIMD2 promotes cell autophagy. LC3-II/I ratio and Beclin1 expression increased in LIMD2 knockdown cells, while P62 expression declined in LIMD2 knockdown cells. Additionally, the phosphorylation of ERK1/2 was inhibited by the knockdown of LIMD2 in SKOV3 and OVCAR3 cells. CONCLUSION Knockdown of LIMD2 inhibits cell proliferation, migration, invasion and autophagy, and promotes the apoptosis through the ERK1/2 signaling pathway, suggesting that LIMD2-siRNA may be an effective molecule to prevent OC progression.
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Affiliation(s)
- Haiyang Hu
- Department of Gynecology, Affiliated Hospital of Jining Medical University, 89 Guhuai Road, Jining, Shandong, 272029, People's Republic of China
| | - Yanan Wang
- Department of Clinical Medicine, Jining Medical University, Jining, Shandong, 272067, People's Republic of China
| | - Yan Dong
- Department of Clinical Medicine, Jining Medical University, Jining, Shandong, 272067, People's Republic of China
| | - Lin Wang
- Department of Clinical Medicine, Jining Medical University, Jining, Shandong, 272067, People's Republic of China
| | - Yahui Chen
- Department of Clinical Medicine, Jining Medical University, Jining, Shandong, 272067, People's Republic of China
| | - Yan Zhou
- Department of Clinical Medicine, Jining Medical University, Jining, Shandong, 272067, People's Republic of China
| | - Lin Sun
- Department of Gynecology, Affiliated Hospital of Jining Medical University, 89 Guhuai Road, Jining, Shandong, 272029, People's Republic of China.
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Chen L, Qian J, You Q, Ma J. LIM domain-containing 2 (LIMD2) promotes the progress of ovarian cancer via the focal adhesion signaling pathway. Bioengineered 2021; 12:10089-10100. [PMID: 34724866 PMCID: PMC8809939 DOI: 10.1080/21655979.2021.2000732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/12/2022] Open
Abstract
Ovarian cancer (OC) is the leading cause of death from gynecological cancer. In this study, we aimed to explore the role and potential mechanism of LIMD2 during the progression of OC. The expression of LIMD2 was analyzed by GEPIA (Gene Expression Profiling Interactive Analysis) database. Western blot and real-time PCR were applied to detect the gene expression of LIMD2 in OC cell lines. Cell counting kit-8 (CCK-8) assay, transwell, wound healing assays, and tumor xenograft experiments were used to evaluate the function of LIMD2 in vitro and vivo. Further, the LIMD2-associated pathways in OC were predicted by RNA-seq analysis, and the involvement of the corresponding cell signaling activities were confirmed by Western blot. We found that LIMD2 was high expressed in OC. Additionally, we found that silencing of LIMD2 inhibited OC cell proliferation in vitro and reduced the growth of its xenograft tumors. Moreover, knockdown of LIMD2 significantly decreased the migration of OC cells. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed that pathways regulating extracellular matrix (ECM)-receptor interactions and focal adhesion signaling, were deregulated by LIMD2. Particularly, we confirmed that reducing LIMD2 could decrease the expression of Focal adhesion kinase (FAK) pathway related molecules. In conclusion, LIMD2 promotes the proliferation and invasion of ovarian cancer in vitro and in vivo, potentially through regulating the focal adhesion signaling pathway.
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Affiliation(s)
- Lixin Chen
- School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin, China
| | - Ji Qian
- Bio-teq Center, Fudan University, Shanghai, China
| | - Qinghua You
- Department of Pathology, Shanghai Pudong Hospital, Shanghai, China
| | - Jie Ma
- School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin, China
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Chen Y, Huang X, Zhu K, Li C, Peng H, Chen L, Huang Z, Zhang Y, Weng G, Xiao T, Chen J, Xu Y. LIMD2 is a Prognostic and Predictive Marker in Patients With Esophageal Cancer Based on a ceRNA Network Analysis. Front Genet 2021; 12:774432. [PMID: 34868263 PMCID: PMC8636797 DOI: 10.3389/fgene.2021.774432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 10/22/2021] [Indexed: 12/13/2022] Open
Abstract
Globally, esophageal cancer (ECA) is the seventh most common cancer and sixth most common cause of cancer-associated mortality. However, there are no reliable prognostic and predictive molecular markers for ECA; in addition, the pathogenesis of ECA is not fully elucidated. The expressions of circular RNAs (circRNAs), microRNAs (miRNAs), and messenger RNAs (mRNAs) of ECA and control groups were obtained from the RNA-sequencing (RNA-seq) data of our hospital, the Gene Expression Omnibus (GEO), and The Cancer Genome Atlas (TCGA) datasets. Analyses of differentially expressed genes, the circRNA-miRNA-mRNA-competing endogenous RNA (ceRNA) network, and functional/pathway enrichment were conducted. The key targets in the ceRNA network that showed significant results in survival Cox regression analyses were selected. Furthermore, analyses of immune infiltration and autophagy genes related to the key targets were performed. Seven circRNAs, 22 miRNAs, and 34 mRNAs were identified as vital genes in ECA; the nuclear factor-κ-gene binding (NF-κB) and phosphatidylinositol-3 kinase/protein kinase B (PI3K-Akt) signaling were identified as the most enriched pathways. In addition, the LIM domain containing 2 (LIMD2) was an independent predictor of prognosis in ECA patients and closely associated with immunity and autophagy. Moreover, quantitative reverse-transcription polymerase chain reaction (qRT-PCR) revealed significant upregulation of LIMD2 expression in ECA tissues. ECA may be closely correlated with NF-κB and PI3K/Akt signaling. In addition, LIMD2 could be a potential prognostic and predictive marker of ECA.
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Affiliation(s)
- Yuanmei Chen
- Department of Thoracic Surgery, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Xinyi Huang
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Kunshou Zhu
- Department of Thoracic Surgery, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Changkun Li
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University Qishan Campus, Fuzhou, China
| | - Haiyan Peng
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University Qishan Campus, Fuzhou, China
| | - Lin Chen
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Zhengrong Huang
- Department of Integrative Traditional Chinese and Western Medicine, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Yangfan Zhang
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, Fujian Normal University Qishan Campus, Fuzhou, China
| | - Guibin Weng
- Department of Thoracic Surgery, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Tianya Xiao
- Department of Thoracic Surgery, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Junqiang Chen
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
- *Correspondence: Yuanji Xu, ; Junqiang Chen,
| | - Yuanji Xu
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
- *Correspondence: Yuanji Xu, ; Junqiang Chen,
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Araldi RP, de Melo TC, Levy D, de Souza DM, Maurício B, Colozza-Gama GA, Bydlowski SP, Peng H, Rauscher FJ, Cerutti JM. LIMD2 Regulates Key Steps of Metastasis Cascade in Papillary Thyroid Cancer Cells via MAPK Crosstalk. Cells 2020; 9:cells9112522. [PMID: 33238381 PMCID: PMC7700534 DOI: 10.3390/cells9112522] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/07/2020] [Accepted: 11/10/2020] [Indexed: 01/18/2023] Open
Abstract
Although papillary thyroid carcinoma (PTC) has a good prognosis, 20–90% of patients show metastasis to regional lymph nodes and 10–15% of patients show metastasis to distant sites. Metastatic disease represents the main clinical challenge that impacts survival rate. We previously showed that LIMD2 was a novel metastasis-associated gene. In this study, to interrogate the role of LIMD2 in cancer invasion and metastasis, we used CRISPR-mediated knockout (KO) of LIMD2 in PTC cells (BCPAP and TPC1). Western blot and high-content screening (HCS) analysis confirmed functional KO of LIMD2. LIMD2 KO reduced in vitro invasion and migration. Ultrastructural analyses showed that cell polarity and mitochondria function and morphology were restored in LIMD2 KO cells. To unveil the signals supervising these phenotypic changes, we employed phospho-protein array. Several members of the MAPK superfamily showed robust reduction in phosphorylation. A Venn diagram displayed the overlap of kinases with reduced phosphorylation in both cell lines and showed that they were able to initiate or sustain the epithelial-mesenchymal transition (EMT) and DNA damage checkpoint. Flow cytometry and HCS validation analyses further corroborated the phospho-protein array data. Collectively, our findings show that LIMD2 enhances phosphorylation of kinases associated with EMT and invasion. Through cooperation with different kinases, it contributes to the increased genomic instability that ultimately promotes PTC progression.
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Affiliation(s)
- Rodrigo Pinheiro Araldi
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo/EPM, São Paulo, SP 04039-032, Brazil; (R.P.A.); (G.A.C.-G.)
| | - Thatiana Correa de Melo
- Programa de Pós-graduação em Biociências, Universidade Federal da Integração Latino-Americana (UNILA), Foz do Iguaçu, PR 85866-000, Brazil;
| | - Débora Levy
- Laboratory of Histocompatibility and Cellular Immunity, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP 05404-000, Brazil; (D.L.); (S.P.B.)
| | | | - Beatriz Maurício
- Laboratory of Cell Biology, Instituto Butantan, São Paulo, SP 05503-900, Brazil;
| | - Gabriel Avelar Colozza-Gama
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo/EPM, São Paulo, SP 04039-032, Brazil; (R.P.A.); (G.A.C.-G.)
| | - Sergio Paulo Bydlowski
- Laboratory of Histocompatibility and Cellular Immunity, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP 05404-000, Brazil; (D.L.); (S.P.B.)
| | - Hongzhuang Peng
- The Wistar Institute, Philadelphia, PA 19104, USA; (H.P.); (F.J.R.III)
| | - Frank J. Rauscher
- The Wistar Institute, Philadelphia, PA 19104, USA; (H.P.); (F.J.R.III)
| | - Janete Maria Cerutti
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo/EPM, São Paulo, SP 04039-032, Brazil; (R.P.A.); (G.A.C.-G.)
- Correspondence: ; Tel.: +55-(11)-5576-4979
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An interactive network of alternative splicing events with prognostic value in geriatric lung adenocarcinoma via the regulation of splicing factors. Biosci Rep 2020; 40:226556. [PMID: 33000861 PMCID: PMC7569206 DOI: 10.1042/bsr20202338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/24/2020] [Accepted: 09/29/2020] [Indexed: 12/23/2022] Open
Abstract
Alternative splicing (AS), an essential process for the maturation of mRNAs, is involved in tumorigenesis and tumor progression, including angiogenesis, apoptosis, and metastasis. AS changes can be frequently observed in different tumors, especially in geriatric lung adenocarcinoma (GLAD). Previous studies have reported an association between AS events and tumorigenesis but have lacked a systematic analysis of its underlying mechanisms. In the present study, we obtained splicing event information from SpliceSeq and clinical information regarding GLAD from The Cancer Genome Atlas. Survival-associated AS events were selected to construct eight prognostic index (PI) models. We also constructed a correlation network between splicing factors (SFs) and survival-related AS events to identify a potential molecular mechanism involved in regulating AS-related events in GLAD. Our study findings confirm that AS has a strong prognostic value for GLAD and sheds light on the clinical significance of targeting SFs in the treatment of GLAD.
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