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Han H, Huang H, Chen AP, Tang Y, Huang X, Chen C. High CASC expression predicts poor prognosis of lung cancer: A systematic review with meta-analysis. PLoS One 2024; 19:e0292726. [PMID: 38573879 PMCID: PMC10994294 DOI: 10.1371/journal.pone.0292726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/26/2023] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND The long non-coding RNA cancer susceptibility candidate (CASC) has abnormal expression in lung cancer tissues and may correlate with lung cancer prognosis. This study aimed to comprehensively evaluate the association between CASC expression and the cancer prognosis. METHODS PubMed, Embase, Web of Science, Google Scholar, Cochrane Library, and China National Knowledge Infrastructure databases were searched until April 1, 2023, to obtain the relevant literature. Studies that met the predefined eligibility criteria were included, and their quality was independently assessed by 2 investigators according to the Newcastle-Ottawa Scale (NOS) score. Detailed information was obtained, such as first author, year of publication, and number of patients. Hazard ratio (HR) with a 95% confidence interval (CI) was extracted and grouped to assess the relationship between CASC expression and cancer prognosis. The dichotomous data was merged and shown as the odds ratio (OR) with a 95% CI was extracted to assess the relationship between CASC expression and clinicopathological parameters. RESULTS A total of 12 studies with 746 patients with lung cancer were included in the meta-analysis. The expression levels of lncRNA CASC2 and CASC7 were decreased, while those of CASC9, 11, 15, and 19 were induced in lung cancer tissues compared with paracancerous tissues. In the population with low CASC expression (CASC2 and CASC7), high CASC expression indicated a good lung cancer prognosis (HR = 0.469; 95% CI, 0.271-0.668). Conversely, in the population with high CASC expression (CASC9, 11, 15, and 19), high CASC expression predicted a poor lung cancer outcome (HR = 1.910; 95% CI, 1.628-2.192). High CASC expression also predicted worse disease-free survival (DFS) (HR = 2.803; 95% CI, 1.804-6.319). Combined OR with 95% CI revealed an insignificant positive association between high CASC expression and advanced TNM stage (OR = 1.061; 95% CI, 0.775-1.454), LNM (OR = 0.962; 95% CI, 0.724-1.277), tumor size (OR = 0.942; 95% CI, 0.667-1.330), and histological grade (OR = 1.022; 95% CI, 0.689-1.517). CONCLUSION The CASC expression levels negatively correlate with lung cancer prognosis. Therefore, CASC expression may serve as a prognostic marker and a potential therapeutic target for lung cancer.
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Affiliation(s)
- Hao Han
- Department of Thoracic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Huan Huang
- Department of Thoracic Surgery, People’s Hospital of Dongxihu District, Wuhan, Hubei, China
| | - An-ping Chen
- Department of Thoracic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Yang Tang
- Department of Thoracic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Xin Huang
- Department of Thoracic Surgery, People’s Hospital of Dongxihu District, Wuhan, Hubei, China
| | - Cheng Chen
- Department of Thoracic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
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Naik A, Lattab B, Qasem H, Decock J. Cancer testis antigens: Emerging therapeutic targets leveraging genomic instability in cancer. MOLECULAR THERAPY. ONCOLOGY 2024; 32:200768. [PMID: 38596293 PMCID: PMC10876628 DOI: 10.1016/j.omton.2024.200768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Cancer care has witnessed remarkable progress in recent decades, with a wide array of targeted therapies and immune-based interventions being added to the traditional treatment options such as surgery, chemotherapy, and radiotherapy. However, despite these advancements, the challenge of achieving high tumor specificity while minimizing adverse side effects continues to dictate the benefit-risk balance of cancer therapy, guiding clinical decision making. As such, the targeting of cancer testis antigens (CTAs) offers exciting new opportunities for therapeutic intervention of cancer since they display highly tumor specific expression patterns, natural immunogenicity and play pivotal roles in various biological processes that are critical for tumor cellular fitness. In this review, we delve deeper into how CTAs contribute to the regulation and maintenance of genomic integrity in cancer, and how these mechanisms can be exploited to specifically target and eradicate tumor cells. We review the current clinical trials targeting aforementioned CTAs, highlight promising pre-clinical data and discuss current challenges and future perspectives for future development of CTA-based strategies that exploit tumor genomic instability.
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Affiliation(s)
- Adviti Naik
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
| | - Boucif Lattab
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
| | - Hanan Qasem
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
- College of Health and Life Sciences (CHLS), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | - Julie Decock
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
- College of Health and Life Sciences (CHLS), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Doha, Qatar
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Ding Y, Wang K, Zhao S, Li Y, Qiu W, Zhu C, Wang Y, Dong C, Liu J, Lu Y, Qi W. Role of Kinetochore Scaffold 1 (KNL1) in Tumorigenesis and Tumor Immune Microenvironment in Pan-Cancer: Bioinformatics Analyses and Validation of Expression. Int J Gen Med 2023; 16:4883-4906. [PMID: 37928953 PMCID: PMC10625436 DOI: 10.2147/ijgm.s424245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/24/2023] [Indexed: 11/07/2023] Open
Abstract
Purpose Kinetochore scaffold 1 (KNL1), a crucial protein during cell mitosis participating in cell division, was widely expressed in multiple kinds of cancers. However, the expression profile, the effect on cell biological function, tumor immune microenvironment, and predictive value of clinical prognosis in pan-cancer of KNL1 still require a comprehensive inquiry. Methods The mRNA and protein expression profile of KNL1 was validated in pan-cancer using different databases. Six algorithms were used to explore the correlation between KNL1 and immune infiltration and the relationship between KNL1 and tumor mutation burden (TMB), microsatellite instability (MSI), and TIDE score were calculated. The diagnostic and clinical prognostic predictive ability of KNL1 was assessed. Differentially expressed genes (DEGs) of KNL1 were screened out and function enrichment analyses were performed in pancreatic adenocarcinoma (PAAD), stomach adenocarcinoma (STAD), and bladder urothelial carcinoma (BLCA). Finally, 8 cases of pancreatic adenocarcinoma tissues and paired adjacent tissues were collected for immunohistochemical (IHC) staining and the histological score (H-score) was calculated. Real-time PCR was performed in gastric cancer and bladder cancer cell lines. Results KNL1 was abnormally upregulated in more than half of cancers across different databases. IHC and real-time PCR verified the up-regulated expression in cancer tissues in PAAD, gastric cancer, and BLCA. The satisfactory diagnostic value of KNL1 was indicated in 30 cancers and high KNL1 expression was associated with poorer overall survival (OS) in 12 cancers. The prognostic role of KNL1 as a predictive biomarker of PAAD was clarified. KNL1 played an active part in the cell cycle and cell proliferation. Moreover, KNL1 was likely to mold the Th2-dominant suppressive tumor immune microenvironment and was associated with TMB, MSI, and immune checkpoint-related genes in pan-cancer. Conclusion Our study elucidated the anomalous expression of KNL1 and revealed that KNL1 was a promising prognostic biomarker in pan-cancer.
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Affiliation(s)
- Yixin Ding
- Department of Oncology, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Kongjia Wang
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, Qingdao, People's Republic of China
| | - Shufen Zhao
- Department of Oncology, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Yu Li
- Department of Gastrointestinal Surgery, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Wensheng Qiu
- Department of Oncology, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Chunyang Zhu
- Department of Oncology, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Yan Wang
- Department of Oncology, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Chen Dong
- Department of Oncology, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Jiani Liu
- Department of Oncology, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Yangyang Lu
- Department of Oncology, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Weiwei Qi
- Department of Oncology, the Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
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Liao C, Zheng Z, Liu J, Li J, Li R, Hu S. A novel long noncoding RNA AC125257.1 facilitates colorectal cancer progression by targeting miR-133a-3p/CASC5 axis. Open Med (Wars) 2023; 18:20230631. [PMID: 37009050 PMCID: PMC10052384 DOI: 10.1515/med-2023-0631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/05/2022] [Accepted: 12/10/2022] [Indexed: 03/29/2023] Open
Abstract
Abstract
Colorectal cancer (CRC) is a common malignant gastrointestinal tumor. Long noncoding RNAs (lncRNAs) are revealed to be critically involved in CRC progression, providing new direction for exploring the pathogenesis of CRC. This study aimed to explore the biological functions and regulatory mechanisms of lncRNA AC125257.1 in CRC. Western blotting and reverse-transcription quantitative polymerase chain reaction were used for the measurement of gene expression. Cell counting kit-8 assay and flow cytometry analysis were used to explore the effects of AC125257.1 on CRC cell viability and apoptosis. RNA pull-down and immunoprecipitation assays were performed for validating the binding between AC125257.1 and its potential downstream microRNA. Results showed that lncRNA AC125257.1 expression was upregulated in CRC cells and tumor tissues. AC125257.1 enhanced cell viability and suppressed apoptosis of CRC cells. Moreover, the knockdown of AC125257.1 suppressed CRC progression in vitro and inhibited tumor growth in vivo. miR-133a-3p was revealed to bind with AC125257.1 in CRC cells. CASC5 was proved to be targeted by miR-133a-3p. Moreover, rescue assays indicated that the knockdown of AC125257.1 suppressed the pathogenic overexpression of CASC5. To conclude, AC125257.1 aggravates CRC development via miR-873-5p/CASC5 axis. Our findings might suggest a novel perspective that AC125257.1 may become the target for CRC treatment.
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Affiliation(s)
- Chuanwen Liao
- Department of Gastrointestinal Surgery, Jiangxi Provincial People’s Hospital (The First Affiliated Hospital of Nanchang Medical College), Nanchang, Jiangxi, 330006, China
| | - Zihan Zheng
- Department of Gastrointestinal Surgery, Jiangxi Provincial People’s Hospital (The First Affiliated Hospital of Nanchang Medical College), Nanchang, Jiangxi, 330006, China
| | - Junye Liu
- Department of Gastrointestinal Surgery, Jiangxi Provincial People’s Hospital (The First Affiliated Hospital of Nanchang Medical College), Nanchang, Jiangxi, 330006, China
| | - Jian Li
- Department of Gastrointestinal Surgery, Jiangxi Provincial People’s Hospital (The First Affiliated Hospital of Nanchang Medical College), Nanchang, Jiangxi, 330006, China
| | - Rui Li
- Department of Gastrointestinal Surgery, Jiangxi Provincial People’s Hospital (The First Affiliated Hospital of Nanchang Medical College), Nanchang, Jiangxi, 330006, China
| | - Shuqin Hu
- Department of Organ Procurement Organization, Jiangxi Provincial People’s Hospital (The First Affiliated Hospital of Nanchang Medical College), No. 152 Aiguo Road, Nanchang, Jiangxi, 330006, China
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Zhao Y, Yang J, Lu D, Zhu Y, Liao K, Tian Y, Yin R. The Loss-Function of KNL1 Causes Oligospermia and Asthenospermia in Mice by Affecting the Assembly and Separation of the Spindle through Flow Cytometry and Immunofluorescence. SENSORS (BASEL, SWITZERLAND) 2023; 23:2571. [PMID: 36904774 PMCID: PMC10007211 DOI: 10.3390/s23052571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/13/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
KNL1 (kinetochore scaffold 1) has attracted much attention as one of the assembly elements of the outer kinetochore, and the functions of its different domains have been gradually revealed, most of which are associated with cancers, but few links have been made between KNL1 and male fertility. Here, we first linked KNL1 to male reproductive health and the loss-function of KNL1 resulted in oligospermia and asthenospermia in mice (an 86.5% decrease in total sperm number and an 82.4% increase in static sperm number, respectively) through CASA (computer-aided sperm analysis). Moreover, we introduced an ingenious method to pinpoint the abnormal stage in the spermatogenic cycle using flow cytometry combined with immunofluorescence. Results showed that 49.5% haploid sperm was reduced and 53.2% diploid sperm was increased after the function of KNL1 was lost. Spermatocytes arrest was identified at the meiotic prophase I of spermatogenesis, which was induced by the abnormal assembly and separation of the spindle. In conclusion, we established an association between KNL1 and male fertility, providing a guide for future genetic counseling regarding oligospermia and asthenospermia, and a powerful method for further exploring spermatogenic dysfunction by utilizing flow cytometry and immunofluorescence.
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Affiliation(s)
- Yuwei Zhao
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200000, China
| | - Jingmin Yang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200000, China
- Shanghai WeHealth BioMedical Technology Co., Ltd., Shanghai 201318, China
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing 404100, China
| | - Daru Lu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200000, China
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing 404100, China
| | - Yijian Zhu
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing 404100, China
| | - Kai Liao
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200000, China
| | - Yafei Tian
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200000, China
- Shanghai WeHealth BioMedical Technology Co., Ltd., Shanghai 201318, China
| | - Rui Yin
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing 404100, China
- Reproductive Medicine Research Center, Medical Research Institute, Southwest University, Chongqing 400715, China
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He K, Li J, Huang X, Zhao W, Wang K, Wang T, Chen J, Wang Z, Yi J, Zhao S, Zhao L. KNL1 is a prognostic and diagnostic biomarker related to immune infiltration in patients with uterine corpus endometrial carcinoma. Front Oncol 2023; 13:1090779. [PMID: 36776306 PMCID: PMC9913269 DOI: 10.3389/fonc.2023.1090779] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/11/2023] [Indexed: 01/29/2023] Open
Abstract
Background The incidence and mortality of uterine corpus endometrial carcinoma (UCEC) are increasing yearly. There is currently no screening test for UCEC, and progress in its treatment is limited. It is important to identify new biomarkers for screening, diagnosing and predicting the outcomes of UCEC. A large number of previous studies have proven that KNL1 is crucial in the development of lung cancer, colorectal cancer and cervical cancer, but there is a lack of studies about the role of KNL1 in the development of UCEC. Methods The mRNA and protein expression data of KNL1 in The Cancer Genome Atlas (TCGA), Gene Expression Omnibus (GEO) and UALCAN databases and related clinical data were used to analyze the expression differences and clinical correlations of KNL1 in UCEC. A total of 108 clinical samples were collected, and the results of bioinformatics analysis were verified by immunohistochemistry. KNL1 and its related differentially expressed genes were used to draw a volcano map, construct a PPI protein interaction network, and perform gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), gene set enrichment analysis (GSEA) and immune infiltration analysis to predict the function of KNL1 during UCEC progression. The prognostic data of TCGA and 108 clinical patients were used to analyze the correlation of KNL1 expression with the survival of patients, and KM survival curves were drawn. The UCEC cell lines Ishikawa and Hec-1-A were used to verify the function of KNL1. Results KNL1 is significantly overexpressed in UCEC and is associated with a poor prognosis. KNL1 overexpression is closely related to cell mitosis, the cell cycle and other functions and is correlated with the International Federation of Gynecology and Obstetrics (FIGO) stage, histological grade and other characteristics of UCEC patients. Knockdown of KNL1 expression in UCEC cell lines can inhibit their proliferation, invasion, metastasis and other phenotypes. Conclusion KNL1 is a prognostic and diagnostic biomarker associated with immune evasion in patients with UCEC.
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Affiliation(s)
- Kang He
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China
| | - Jingze Li
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China
| | - Xuemiao Huang
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China
| | - Weixin Zhao
- The Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Kai Wang
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China
| | - Taiwei Wang
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China
| | - Junyu Chen
- The Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Zeyu Wang
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China
| | - Jiang Yi
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Shuhua Zhao
- The Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin, China,*Correspondence: Lijing Zhao, ; Shuhua Zhao,
| | - Lijing Zhao
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, China,*Correspondence: Lijing Zhao, ; Shuhua Zhao,
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Zhang Y, Ji Q, Wang J, Dong Y, Pang M, Fu S, Wei Y, Zhu Q. High expression of KNL1 in prostate adenocarcinoma is associated with poor prognosis and immune infiltration. Front Genet 2023; 13:1100787. [PMID: 36685823 PMCID: PMC9853456 DOI: 10.3389/fgene.2022.1100787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/19/2022] [Indexed: 01/09/2023] Open
Abstract
Prostate adenocarcinoma (PRAD) is a common malignancy with increasing morbidity and mortality. Kinetochore scaffold 1 (KNL1) has been reported to be involved in tumor progression and prognosis in other tumors, but its role in PRAD has not been reported in detail. KNL1 expression analysis, clinicopathological parameters analysis, prognostic correlation analysis, molecular interaction network and functional abdominal muscle analysis and immune infiltration analysis by using multiple online databases and downloaded expression profile. The results suggest that KNL1 is highly expressed in PRAD, which is associated with worse prognosis in PRAD patients. KnL1-related genes are highly enriched in mitotic function, which is considered to be highly related to the development of cancer. Finally, KNL1 expression is associated with a variety of tumor infiltrating immune cells, especially Treg and Th2 cells. In conclusion, our findings provide preliminary evidence that KNL1 may be an independent prognostic predictor of PRAD and is associated with immune infiltration.
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Affiliation(s)
- Yetao Zhang
- Department of Urology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qianying Ji
- Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Jun Wang
- Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yuxiang Dong
- Department of Urology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Mingyang Pang
- Department of Urology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shengqiang Fu
- Department of Urology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yong Wei
- Department of Urology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China,*Correspondence: Yong Wei, ; Qingyi Zhu,
| | - Qingyi Zhu
- Department of Urology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China,Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China,*Correspondence: Yong Wei, ; Qingyi Zhu,
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Singh PK, Bhatt MLB, Singh P, Rath SK, Dalela D, Goel MM. CASC5 is a potential cancer-testis gene in human urinary bladder transitional cell carcinoma. Drug Discov Ther 2022; 15:331-336. [PMID: 35034926 DOI: 10.5582/ddt.2021.01108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Urinary Bladder cancer (UBC) is a diversified disease with an array of clinicopathological attributes. Several studies have shown that cancer susceptibility candidate 5 (CASC5) plays important roles in various types of malignancies; however its expression and clinical significance in human UBC remain largely unknown. This research study was intended to explore mRNA/protein expression pattern of CASC5 as a member of the cancer-testis (CT) gene family and assess its clinical utility in diagnostic management of patients with UBC. Quantitative real-time PCR (qRT-PCR) and immunohistochemistry (IHC) was employed to appraise the detailed expression profile of CASC5 in patients with UBC. The mRNA over expression of CASC5 was detected in testis tissue and relatively high frequency 59.2% (45 of 76) of CASC5 mRNA was detected in UBC tissues. CASC5 mRNA relative mean fold expression was also significantly (p < 0.01) higher in the muscle-invasive tumor tissues compared to non-muscle-invasive tumor tissues (12.26 ± 9.53 vs. 4.64 ± 2.50, p = 0.005). Heterogeneous staining pattern of CASC5 protein was exclusively detected using IHC. The frequency of CASC5 protein over expression was detected in 67.7% (44 of 65) UBC patients and negative in benign prostatic hyperplasia (BPH). Further, CASC5 protein expression was significantly (p < 0.001) associated with cigarette smoking habit in UBC patients. Our study findings testified that CASC5 over expression among patients with UBC as compared to controls and concludes that CASC5 is a potential CT gene in UBC.
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Affiliation(s)
- Pankaj Kumar Singh
- Department of Biochemistry, All India Institute of Medical Sciences, Vijaypur, Jammu, India
| | - Madan Lal Brahma Bhatt
- Department of Radiotherapy, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Prabhat Singh
- Department of Biological Sciences, Indian Institute of Science Education and Research Berhampur, Odisha, India
| | - Srikanta Kumar Rath
- Genotoxicity Laboratory, Division of Toxicology, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Diwakar Dalela
- Department of Urology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Madhu Mati Goel
- Department of Pathology, King George's Medical University, Lucknow, Uttar Pradesh, India
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Xu C, Liu M. Integrative bioinformatics analysis of KPNA2 in six major human cancers. Open Med (Wars) 2021; 16:498-511. [PMID: 33821218 PMCID: PMC8010156 DOI: 10.1515/med-2021-0257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/13/2021] [Accepted: 02/24/2021] [Indexed: 12/30/2022] Open
Abstract
Background Malignant tumors were considered as the leading causes of cancer-related mortality globally. More and more studies found that dysregulated genes played an important role in carcinogenesis. The aim of this study was to explore the significance of KPNA2 in human six major cancers including non-small cell lung cancer (NSCLC), gastric cancer, colorectal cancer, breast cancer, hepatocellular carcinoma, and bladder cancer based on bioinformatics analysis. Methods The data were collected and comprehensively analyzed based on multiple databases. KPNA2 mRNA expression in six major cancers was investigated in Oncomine, the human protein atlas, and GEPIA databases. The mutation status of KPNA2 in the six major cancers was evaluated by online data analysis tool Catalog of Somatic Mutations in Cancer (COSMIC) and cBioPortal. Co-expressed genes with KPNA2 were identified by using LinkedOmics and made pairwise correlation by Cancer Regulome tools. Protein-protein interaction (PPI) network relevant to KPNA2 was constructed by STRING database and KEGG pathway of the included proteins of the PPI network was explored and demonstrated by circus plot. Survival analysis-relevant KPNA2 of the six cancers was performed by GEPIA online data analysis tool based on TCGA database. Results Compared with paired normal tissue, KPNA2 mRNA was upregulated in all of the six types of cancers. KPNA2 mutations, especially missense substitution, were widely identified in six cancers and interact with different genes in different cancer types. Genes involved in PPI network were mainly enriched in p53 signaling pathway, cell cycle, viral carcinogenesis, and Foxo signaling pathway. KPNA2 protein was mainly expressed in nucleoplasm and cytosol in cancer cells. Immunohistochemistry assay indicated that KPNA2 protein was also positively expressed in nucleoplasm with brownish yellow staining. Overall survival (OS) and progression free survival (PFS) were different between KPNA2 high and low expression groups. Conclusions KPNA2 was widely dysregulated and mutated in carcinomas and correlated with the patients prognosis which may be potential target for cancer treatment and biomarker for prognosis.
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Affiliation(s)
- Chaobo Xu
- Department of Gastrointestinal Surgery, Lishui People's Hospital, No. 15 Dazhong Road, Liandu District, Lishui 323000, Zhejiang, China
| | - Ming Liu
- Department of Gastrointestinal Surgery, Lishui People's Hospital, No. 15 Dazhong Road, Liandu District, Lishui 323000, Zhejiang, China
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Turk S, Turk C, Temirci ES, Malkan UY, Ucar G, Ozguven SV. Assessing the genetic impact of Enterococcus faecalis infection on gastric cell line MKN74. ANN MICROBIOL 2021. [DOI: 10.1186/s13213-020-01615-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Abstract
Abstract
Purpose
Enterococcus faecalis (E. faecalis) is an important commensal microbiota member of the human gastrointestinal tract. It has been shown in many studies that infection rates with E. faecalis in gastric cancer significantly increase. It has been scientifically proven that some infections develop during the progression of cancer, but it is still unclear whether this infection factor is beneficial (reduction in metastasis) or harmful (increase in proliferation, invasion, stem cell-like phenotype) of the host. These opposed data can significantly contribute to the understanding of cancer progress when analyzed in detail.
Methods
The gene expression data were retrieved from Array Express (E-MEXP-3496). Variance, t test and linear regression analysis, hierarchical clustering, network, and pathway analysis were performed.
Results
In this study, we identified altered genes involved in E. faecalis infection in the gastric cell line MKN74 and the relevant pathways to understand whether the infection slows down cancer progression. Twelve genes corresponding 15 probe sets were downregulated following the live infection of gastric cancer cells with E. faecalis. We identified a network between these genes and pathways they belong to. Pathway analysis showed that these genes are mostly associated with cancer cell proliferation.
Conclusion
NDC80, NCAPG, CENPA, KIF23, BUB1B, BUB1, CASC5, KIF2C, CENPF, SPC25, SMC4, and KIF20A genes were found to be associated with gastric cancer pathogenesis. Almost all of these genes are effective in the proliferation of cancer cells, especially during the infection process. Therefore, it is hypothesized that downregulation of these genes may affect gastric cancer pathogenesis by reducing cell proliferation. And, it is predicted that E. faecalis infection may be an important factor for gastric cancer.
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