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Identification of autophagy-related risk signatures for the prognosis, diagnosis, and targeted therapy in cervical cancer. Cancer Cell Int 2021; 21:362. [PMID: 34238288 PMCID: PMC8268251 DOI: 10.1186/s12935-021-02073-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 07/02/2021] [Indexed: 12/24/2022] Open
Abstract
Background To rummage autophagy-related prognostic, diagnostic, and therapeutic biomarkers in cervical cancer (CC). Methods The RNA-sequence and clinical information were from the TCGA and GTEx databases. We operated Cox regression to determine signatures related to overall survival (OS) and recurrence-free survival (RFS) respectively. The diagnostic and therapeutic effectiveness of prognostic biomarkers were further explored. Results We identified nine (VAMP7, MTMR14, ATG4D, KLHL24, TP73, NAMPT, CD46, HGS, ATG4C) and three risk signatures (SERPINA1, HSPB8, SUPT20H) with prognostic values for OS and RFS respectively. Six risk signatures (ATG4C, ATG4D, CD46, TP73, SERPINA1, HSPB8) were selected for qPCR. We screened five prognostic signatures(ATG4C, CD46, HSPB8, MTMR14, NAMPT) with diagnostic function through the GEO database. Correlation between our models and treatment targets certificated the prognostic score provided a reference for precision medicine. Conclusions We constructed OS and RFS prognostic models in CC. Autophagy-related risk signatures might serve as diagnostic and therapeutic biomarkers. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02073-w.
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Rodrigues CF, Coutinho JVA, Muzi CD, Guimarães RM. Reasons for never receiving a pap test among Brazilian women: National health survey. Public Health Nurs 2021; 38:963-977. [PMID: 34216046 DOI: 10.1111/phn.12942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 06/18/2021] [Accepted: 06/21/2021] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To identify reasons among Brazilian women for never having a Pap test. DESIGN We designed a cross-sectional study that used data from the National Health Survey. SAMPLE Two thousand four hundred and two women 25-64 years old who never had a pap test. MEASURES Variables were age, race, education, marital status, housing condition, primary health care access, health insurance, self-perceived health, and social support network. We calculated the prevalence of different reasons and odds ratios for each. RESULTS The most frequent reason for never having a test were linked to women thinking the test was unnecessary (42.3%) which had a significant association with marital status (OR = 1.52; 95% CI = 1.07-1.91), age (OR = 1.56; 95% CI = 1.21-1.99), area of residence (OR = 1.15; 95% CI = 1.02-1.39), having a health insurance (OR = 1.18; 95% CI = 1.01-1.36), and self-perceived health (OR = 1.42; 95% CI = 1.28-1.56). The second most frequent reason was not knowing they needed a test (22.9%) which was associated with age (OR = 1.95; 95% CI = 1.74-2.16) and self-perceived health (OR = 1.56; 95% CI = 1.33-1.80). CONCLUSIONS The findings suggest lack of knowledge about cervical cancer and its prevention among Brazilian women. We consider it essential that the health service can provide the test, as well as the necessary guidelines for raising the awareness of the target audience.
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Li YX, Luo HX, Wang W, Wang Z, Zhao WH, Hao M. Diagnostic accuracy of novel folate receptor-mediated staining solution detection (FRD) for CIN2+: A systematic review and meta analysis. Medicine (Baltimore) 2021; 100:e26004. [PMID: 34011097 PMCID: PMC8137059 DOI: 10.1097/md.0000000000026004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 05/02/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Early detection and diagnosis of high-grade cervical intraepithelial neoplasia grade 2 or higher (CIN2+) is critical for a good prognosis and appropriate treatment. The chief aim of our study was to evaluate the diagnostic performance of folate receptor-mediated staining solution detection (FRD) for CIN2+. METHODS We conducted a systematic review and meta-analysis by searching the PubMed and EMBASE databases for studies published until May 2020, which assessed the diagnostic accuracy of FRD, human papilloma virus (HPV) testing, and ThinPrep cytology test (TCT) for the detection of CIN2+. Bivariate models were used to compare the diagnostic performance of FRD, HPV, and TCT. RESULTS Six studies involving 2817 patients were included in this meta-analysis. The pooled specificity of FRD was higher than that of HPV and TCT for detecting CIN2+ (0.65, 0.12, and 0.39, respectively). The summary area under the receiver operating characteristic curve values using FRD, HPV, and TCT for detecting CIN2+ were 0.79, 0.95, and 0.77, respectively, indicating that FRD was superior to TCT. The diagnostic odds ratios of FRD, HPV, and TCT were 6 (95% CI: 5-7), 3 (95% CI: 2-5), and 3 (95% CI: 2-4), respectively, demonstrating that FRD had good diagnostic accuracy. CONCLUSION FRD showed good diagnostic accuracy and higher specificity than HPV and TCT for detecting CIN2+. Based on our results, we propose that FRD could be a candidate for cervical screening, especially in underdeveloped countries.
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Song TF, Xu AL, Chen XH, Gao JY, Gao F, Kong XC. Circular RNA circRNA_101996 promoted cervical cancer development by regulating miR-1236-3p/TRIM37 axis. Kaohsiung J Med Sci 2021; 37:547-561. [PMID: 33728810 DOI: 10.1002/kjm2.12378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/26/2020] [Accepted: 02/16/2021] [Indexed: 12/27/2022] Open
Abstract
Circular RNAs (circRNAs) appear to be significant modulators in various physiological processes. Recently, it is found that circRNA_101996 exerts important roles in various cancers. Our previous studies showed that circRNA_101996 promoted cervical cancer growth and metastasis by regulating miR-8075/TPX2. However, the potential regulatory role of circRNA_101996 in cervical cancer still needs further investigation. Our results in this study suggested that circRNA_101996 was over-expressed in cervical cancer patients. circRNA_101996 up-regulation remarkably assisted cell proliferation, cell cycle progression, and cell migration in cervical cancer, while circRNA_101996 knockdown exerted the inverse effects. The molecular investigations indicated that circRNA_101996 could increase the expression level of miR-1236-3p, tripartite motif-containing 37 (TRIM37), through binding to miR-1236-3p and reducing its expression. Moreover, in vivo results demonstrated that circRNA_101996 shRNA can function as a tumor suppressor through down-regulating TRIM37 in cervical cancer. In conclusion, our data indicated that circRNA_101996/miR-1236-3p/TRIM37 axis accelerated cervical cancer development, providing novel insights into cervical cancer diagnosis and treatment.
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Affiliation(s)
- Tie-Fang Song
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ai-Li Xu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiu-Hui Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jia-Yin Gao
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Fei Gao
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xian-Chao Kong
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Chen H, Chi Y, Chen M, Zhao L. Long Intergenic Non-Coding RNA LINC00885 Promotes Tumorigenesis of Cervical Cancer by Upregulating MACC1 Expression Through Serving as a Competitive Endogenous RNA for microRNA-432-5p. Cancer Manag Res 2021; 13:1435-1447. [PMID: 33603486 PMCID: PMC7886091 DOI: 10.2147/cmar.s291778] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/13/2021] [Indexed: 12/24/2022] Open
Abstract
Purpose Long intergenic non-protein coding RNA 885 (LINC00885) has been well studied in breast cancer; however, its contribution in cervical cancer remains unclear. In this study, we aimed to determine the detailed functions of LINC00885 in cervical cancer and elucidate the underlying molecular regulation mechanism. Methods The expression status of LINC00885 in cervical cancer was determined using reverse transcription-quantitative polymerase chain reaction and by searching The Cancer Genome Atlas database. The detailed functions of LINC00885 in cervical cancer cells were confirmed using Cell Counting Kit 8 assay, flow cytometry analysis, Transwell cell migration and invasion assays, and tumor xenograft assay. Mechanistic experiments included bioinformatics prediction, RNA immunoprecipitation, luciferase reporter assay, and rescue experiments. Results LINC00885 was clearly overexpressed in cervical cancer, which was linked with unfavorable clinical outcomes. Functionally, LINC00885 deficiency suppressed cervical cancer cell proliferation, migration, and invasion but stimulated cell apoptosis in vitro. Furthermore, loss of LINC00885 restricted the growth of cervical cancer cells in vivo. Mechanistically, LINC00885 functioned as a competitive endogenous RNA for microRNA-432-5p (miR-432-5p) in cervical cancer. Furthermore, metastasis-associated colon cancer 1 (MACC1) was confirmed as the direct target of miR-432-5p, and LINC00885 could enhance MACC1 expression by sequestering miR-432-5p. Rescue experiments revealed that silencing of miR-432-5p or upregulation of MACC1 expression could effectively counteract the restrained aggressive properties of cervical cancer cells induced by LINC00885 deficiency. Conclusion LINC00885 upregulated MACC1 expression in cervical cancer cells by sponging miR-432-5p, thereby promoting cancer progression. The LINC00885/miR-432-5p/MACC1 pathway may help in the identification of potential prognostic biomarkers and therapeutic targets in cervical cancer.
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Affiliation(s)
- Hongwei Chen
- Department of Gynaecology, The First People's Hospital of Chongqing Liangjiang New Area, Chongqing, 401120, People's Republic of China
| | - Yugang Chi
- Department of Gynaecology and Obstetrics, Chongqing Health Center for Women and Children, Chongqing, 400021, People's Republic of China
| | - Mengyue Chen
- Department of Gynaecology, The First People's Hospital of Chongqing Liangjiang New Area, Chongqing, 401120, People's Republic of China
| | - Limei Zhao
- Department of Gynaecology, The First People's Hospital of Chongqing Liangjiang New Area, Chongqing, 401120, People's Republic of China
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MiR-374b increases the CIK expression and mediates biological function changes in cervical cancer cells by targeting the PD-1/PD-L1 signaling pathway. J Reprod Immunol 2020; 143:103265. [PMID: 33360511 DOI: 10.1016/j.jri.2020.103265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/20/2020] [Accepted: 12/03/2020] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To investigate the role of miR-374b in medicating biological function changes in cervical cancer cells by increasing the cytokine-induced killer (CIK) expression. METHODS Venous blood of 62 cervical cancer patients and 58 healthy individuals including Human cervical cancer cell line (HeLa) and normal human uterine smooth muscle cells (HUSMC) were tested for expression of miR-374b, PD-1, and PD-L1. sh-PD-1, si-PD-1, NC, miR-374b-inhibitor, and miR-374b-mimics were transfected into HeLa cells, and expression of miR-374b, PD-1, and PD-L1 was determined by a qRT-PCR assay, and the proliferation and apoptosis of the cells were detected using a MTT assay and flow cytometry, respectively. RESULTS PD-1 was highly expressed in cervical cancer, while miR-374b is lowly expressed in it, and the area-under-the-curve (AUC) of both PD-1 and miR-374b was larger than 0.8. The dual luciferase reporter assay confirmed relationship between PD-1 and miR-374b. Expression of PD-1 in HeLa cells was significantly down-regulated after transfection of miR-374b-mimics. Compared with the CIK + NC group, the CIK + miR-374b-mimics group and the CIK + siRNA-PD-1 group showed a significant decrease in the relative mRNA expression of PD-1, compared with other group showed significantly lowered activity of HeLa cells, and the two groups showed significantly reduced tumor volume. CONCLUSION MiR-374b increases the CIK expression and mediates biological function changes in cervical cancer cells by targeting the PD-1/PD-L1 signaling pathway, so it is expected to be a potential therapeutic target for cervical cancer.
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Yang S, Shi F, Du Y, Wang Z, Feng Y, Song J, Liu Y, Xiao M. Long non-coding RNA CTBP1-AS2 enhances cervical cancer progression via up-regulation of ZNF217 through sponging miR-3163. Cancer Cell Int 2020; 20:343. [PMID: 32742190 PMCID: PMC7388209 DOI: 10.1186/s12935-020-01430-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 07/16/2020] [Indexed: 12/18/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) play significant roles in tumorigenesis and can contribute to identification of novel therapeutic targets for cancers. This paper was aimed at exploring the role of CTBP1 divergent transcript (CTBP1-AS2) in cervical cancer (CC) progression. Methods qRT-PCR and western blot assays were used to detect relevant RNA and protein expressions. In vitro functional assays, including CCK8, EdU, TUNEL and transwell assays were applied to explore the functions of CTBP1-AS2 in CC cell proliferation, apoptosis and migration. In vivo animal study was utilized to investigate the role of CTBP1-AS2 in tumor growth. Luciferase reporter, RNA pull down and RIP assays were performed to determine the specific mechanical relationship between CTBP1-AS2, miR-3163 and ZNF217. Results CTBP1-AS2 was significantly overexpressed in CC cell lines. Knockdown of CTBP1-AS2 curbed cell proliferation, migration and invasion, while stimulated cell apoptosis in vitro. CTBP1-AS2 facilitated xenograft tumor growth in vivo. Cytoplasmic CTBP1-AS2 was found to be a miR-3163 sponge in CC cells. MiR-3163 inhibition abolished the anti-tumor effects of CTBP1-AS2 knockdown. Additionally, Zinc finger protein 217 (ZNF217) was identified as a direct target of miR-3163. CTBP1-AS2 acted as a miR-3163 sponge to elevate ZNF217 expression. ZNF217 up-regulation abrogated the tumor suppressing effects of CTBP1-AS2 knockdown. Conclusion CTBP1-AS2 regulates CC progression via sponging miR-3163 to up-regulate ZNF217.
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Affiliation(s)
- Shanshan Yang
- Department of Gynecological Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang China
| | - Feng Shi
- Department of Obstetrics and Gynecology, Daqing Longnan Hospital, Daqing, 163453 Heilongjiang China
| | - Yuting Du
- Department of Gynecological Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang China
| | - Zhao Wang
- Department of Gynecological Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang China
| | - Yue Feng
- Department of Gynecological Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang China
| | - Jiayu Song
- Department of Gynecological Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang China
| | - Yunduo Liu
- Department of Gynecological Oncology, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang China
| | - Min Xiao
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang China
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Tian S, Lou L, Tian M, Lu G, Tian J, Chen X. MAPK4 deletion enhances radiation effects and triggers synergistic lethality with simultaneous PARP1 inhibition in cervical cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:143. [PMID: 32711558 PMCID: PMC7382858 DOI: 10.1186/s13046-020-01644-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/15/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Cervical cancer is one of the most common cancers among females worldwide and advanced patients have extremely poor prognosis. However, adverse reactions and accumulating resistance to radiation therapy require further investigation. METHODS The expression levels of mitogen-activated protein kinase 4 (MAPK4) mRNA were analyzed by real-time PCR and its association with overall survival was analyzed using Kaplan-Mier method. Colony formation, immunofluorescence and western blotting were used to examine the effects of MAPK4 knockout or over-expression on cervical cancer cells after radiation treatment. Drug-sensitivity of cervical cancer cells to PARP1 inhibitors, olaparib or veliparib, was analyzed by CCK-8 cell viability assays, and the 50% inhibitory concentration (IC50) was quantified using GraphPad Prism. The functional effects of MAPK4 knockout on the sensitivity of cervical cancer to radiation treatment and PARP1 inhibitors were further examined using xenograft tumor mouse models in vivo. RESULTS Cervical cancer patients with high MAPK4 mRNA expression have lower survival rate. After radiation treatment, the colony number of MAPK4 knockout cells was markedly reduced, and the markers for DNA double-chain breakage were significantly up-regulated. In addition, MAPK4 knockout reduced protein kinase B (AKT) phosphorylation, whereas its over-expression resulted in opposite effects. In MAPK4 KO cells with irradiation treatment, inhibition of AKT phosphorylation promoted DNA double-chain breakage. Constitutive activation of AKT (CA-AKT) increased the levels of phosphorylated-AKT (p-AKT), and DNA repair-related proteins, phosphorylated-DNA-dependent protein kinase (p-DNA-PK) and RAD51 recombinase (RAD51). Furthermore, MAPK4 knockout was found to affect the sensitivity of cervical cancer cells to poly ADP-ribose polymerase 1 (PARP1) inhibitors by activating the phosphorylation of AKT. Moreover, in vivo results demonstrated that MAPK4 knockout enhanced the sensitivity of cervical cancer to radiation and PARP1 inhibitors in mouse xenograft models. CONCLUSIONS Collectively, our data suggest that combined application of MAPK4 knockout and PARP1 inhibition can be used as therapeutic strategy in radiation treatment for advanced cervical carcinoma.
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Affiliation(s)
- Shuzhen Tian
- Department of Gynecology, Affiliated Cancer Hospital of Zhengzhou University, Henan Procincical Cancer Hospital, No. 127 Dongming Avenue, Zhengzhou City, 450009, Henan Province, China.
| | - Lili Lou
- Department of Respiratory Medicine, The First Affiliated Hospital Zhengzhou University, Zhengzhou City, 450052, Henan Province, China
| | - Mengyuan Tian
- Department of Pathology, Affiliated Cancer Hospital of Zhengzhou University, Henan Procincical Cancer Hospital, Zhengzhou City, 450009, Henan Province, China
| | - Guangping Lu
- Department of Emergency Medicine, The First Affiliated Hospital Zhengzhou University, Zhengzhou City, 450052, Henan Province, China
| | - Jianghua Tian
- Department of Internal Medicine, Peking University Hospital, Beijing, 100871, China
| | - Xi Chen
- School of Basic Medicine, Zhejiang University Medical School, Hangzhou City, 310013, Zhejiang Province, China
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Zheng JJ, He Y, Liu Y, Li FS, Cui Z, Du XM, Wang CP, Wu YM. Novel role of PAF1 in attenuating radiosensitivity in cervical cancer by inhibiting IER5 transcription. Radiat Oncol 2020; 15:131. [PMID: 32471508 PMCID: PMC7257241 DOI: 10.1186/s13014-020-01580-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 05/20/2020] [Indexed: 01/16/2023] Open
Abstract
Background Radiosensitivity is limited in cervical cancer (CC) patients due to acquired radiation resistance. In our previous studies, we found that immediate-early response 5 (IER5) is upregulated in CC cells upon radiation exposure and decreases cell survival by promoting apoptosis. The details on the transcriptional regulation of radiation-induced IER5 expression are unknown. Studies in recent years have suggested that Pol II-associated factor 1 (PAF1) is a pivotal transcription factor for certain genes “induced” during tumor progression. In this study, we investigated the role of PAF1 in regulating IER5 expression during CC radiotherapy. Methods PAF1 expression in CC cells was measured by western blotting, immunohistochemistry, and qRT-PCR, and the localization of PAF1 and IER5 was determined by immunofluorescence. The effect of PAF1 and IER5 knockdown by siRNA in Siha and Hela cells was studied by western blotting, qRT-PCR, CCK-8 assay, and flow cytometry. The physical interaction of PAF1 with the IER5 promoter and enhancers was confirmed using chromatin immunoprecipitation and qPCR with or without enhancers knockout by CRISPR/Cas9. Results We confirmed that PAF1 was highly expressed in CC cells and that relatively low expression of IER5 was observed in cells with highly expressed PAF1 in the nucleus. PAF1 knockdown in Siha and Hela cells was associated with increased expression of IER5, reduced cell viability and higher apoptosis rate in response to radiation exposure, while simultaneous PAF1 and IER5 knockdown had little effect on the proportion of apoptotic cells. We also found that PAF1 hindered the transcription of IER5 by promoting Pol II pausing at the promoter-proximal region, which was primarily due to the binding of PAF1 at the enhancers. Conclusions PAF1 reduces CC radiosensitivity by inhibiting IER5 transcription, at least in part by regulating its enhancers. PAF1 might be a potential therapeutic target for overcoming radiation resistance in CC patients.
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Affiliation(s)
- Jing-Jie Zheng
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Present address: Dong-Cheng District, Qi-He-Lou Street No.17, Beijing, 100006, China
| | - Yue He
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Present address: Dong-Cheng District, Qi-He-Lou Street No.17, Beijing, 100006, China
| | - Yang Liu
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Present address: Dong-Cheng District, Qi-He-Lou Street No.17, Beijing, 100006, China
| | - Feng-Shuang Li
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Present address: Dong-Cheng District, Qi-He-Lou Street No.17, Beijing, 100006, China
| | - Zhen Cui
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Present address: Dong-Cheng District, Qi-He-Lou Street No.17, Beijing, 100006, China
| | - Xiao-Meng Du
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Present address: Dong-Cheng District, Qi-He-Lou Street No.17, Beijing, 100006, China
| | - Chun-Peng Wang
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Present address: Dong-Cheng District, Qi-He-Lou Street No.17, Beijing, 100006, China
| | - Yu-Mei Wu
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Present address: Dong-Cheng District, Qi-He-Lou Street No.17, Beijing, 100006, China.
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Parra S, Carranza E, Coole J, Hunt B, Smith C, Keahey P, Maza M, Schmeler K, Richards-Kortum R. Development of Low-Cost Point-of-Care Technologies for Cervical Cancer Prevention Based on a Single-Board Computer. IEEE JOURNAL OF TRANSLATIONAL ENGINEERING IN HEALTH AND MEDICINE 2020; 8:4300210. [PMID: 32190430 PMCID: PMC7062146 DOI: 10.1109/jtehm.2020.2970694] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 11/10/2019] [Accepted: 01/11/2020] [Indexed: 12/24/2022]
Abstract
Cervical cancer disproportionally affects women in low- and middle-income countries, in part due to the difficulty of implementing existing cervical cancer screening and diagnostic technologies in low-resource settings. Single-board computers offer a low-cost alternative to provide computational support for automated point-of-care technologies. Here we demonstrate two new devices for cervical cancer prevention that use a single-board computer: 1) a low-cost imaging system for real-time detection of cervical precancer and 2) a low-cost reader for real-time interpretation of lateral flow-based molecular tests to detect cervical cancer biomarkers. Using a Raspberry Pi computer to provide real-time image collection and processing, we developed: 1) a low-cost, portable high-resolution microendoscope system (PiHRME); and 2) a low-cost automatic lateral flow test reader (PiReader). The PiHRME acquired high-resolution ([Formula: see text]) images of the cervix at half the cost of existing high-resolution microendoscope systems; image analysis algorithms based on convolutional neural networks were implemented to provide real-time image interpretation. The PiReader acquired and analyzed images of a point-of-care human papillomavirus (HPV) serology test with the same contrast and accuracy as a standard flatbed high-resolution scanner coupled to a laptop computer, for less than one-fifth of the cost. Raspberry Pi single-board computers provide a low-cost means to implement point-of-care tools with automatic image analysis. This work demonstrates the promise of single-board computers to develop and translate low-cost, point-of-care technologies for use in low-resource settings.
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Affiliation(s)
- Sonia Parra
- Department of BioengineeringRice UniversityHoustonTX77005USA
| | | | - Jackson Coole
- Department of BioengineeringRice UniversityHoustonTX77005USA
| | - Brady Hunt
- Department of BioengineeringRice UniversityHoustonTX77005USA
| | - Chelsey Smith
- Department of BioengineeringRice UniversityHoustonTX77005USA
| | - Pelham Keahey
- Wellman Center for PhotomedicineHarvard Medical School and Massachusetts General HospitalBostonMA02114USA
| | - Mauricio Maza
- Basic Health International El SalvadorSan SalvadorCP1101El Salvador
| | - Kathleen Schmeler
- Department of Gynecologic Oncology and Reproductive MedicineThe University of Texas MD Anderson Cancer CenterHoustonTX77030USA
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Wang J, Yi Y, Chen Y, Xiong Y, Zhang W. Potential mechanism of RRM2 for promoting Cervical Cancer based on weighted gene co-expression network analysis. Int J Med Sci 2020; 17:2362-2372. [PMID: 32922202 PMCID: PMC7484645 DOI: 10.7150/ijms.47356] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/20/2020] [Indexed: 12/18/2022] Open
Abstract
Cervical cancer is the most common gynecologic malignant tumor, with a high incidence in 50-55-year-olds. This study aims to investigate the potential molecular mechanism of RRM2 for promoting the development of cervical cancer based on The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO). RRM2 was found to be significant upregulated in cervical tissue (P<0.05) by extracting the expression of RRM2 from TCGA, GSE63514, GSE7410, GSE7803 and GSE9750. Survival analysis indicated that the overall survival was significantly worse in the patients with high-expression of RRM2 (P<0.05). The top 1000 positively/negatively correlated genes with RRM2 by Pearson Correlation test were extracted. The gene co-expression network by Weighted Gene Co-Expression Network Analysis (WGCNA) with these genes and the clinical characteristics (lymphocyte infiltration, monocyte infiltration, necrosis, neutrophil infiltration, the number of normal/stromal/tumor cells and the number of tumor nuclei) was constructed. By screening the hub nodes from the co-expression network, results suggested that RRM2 may co-express with relevant genes to regulate the number of stromal/tumor cells and the process of lymphocyte infiltration to promote the progression of cervical cancer. RRM2 is likely to become a novel potential diagnostic and prognostic biomarker of cervical cancer and provide evidence to support the study of mechanisms for cervical cancer.
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Affiliation(s)
- Jingtao Wang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yuexiong Yi
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yurou Chen
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yao Xiong
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Wei Zhang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
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Hu QL, Xu ZP, Lan YF, Li B. miR-636 represses cell survival by targeting CDK6/Bcl-2 in cervical cancer. Kaohsiung J Med Sci 2019; 36:328-335. [PMID: 31889428 DOI: 10.1002/kjm2.12181] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/15/2019] [Indexed: 12/11/2022] Open
Abstract
Cervical cancer is widely known as one of the most common types of cancer diagnosed in women, and microRNAs (miRNAs) has been characterized as an important regulator in tumor progression, such as cervical cancer. MiR-636 was found to play a tumor suppressor role in hepatocellular carcinoma tumorigenesis. However, the tumorigenic mechanism of miR-636 on cervical cancer has not yet been found. In the present study, we first found that miR-636 was significantly downregulated in cervical cancer tissues and cell lines. in vitro gain- and loss-of-function assays revealed that overexpression of miR-636 inhibited cell proliferation and induced cell apoptosis, while knockdown of miR-636 reversed the effect on cervical tumorigenesis. Furthermore, cyclin-dependent kinase 6 (CDK6) and B-cell lymphoma 2 (Bcl-2) were characterized as targets of miR-636. Notably, overexpression of CDK6 or Bcl-2 could reverse the inhibitory effect of miR-636 on cervical cancer progression. Mechanistically, miR-636 repressed cell survival by targeting CDK6/Bcl-2 in cervical cancer, which may be the underlying mechanism of miR-636-inhibited cervical progression. In conclusion, our findings clarified the biologic significance of miR-636/CDK6/Bcl-2 axis in cervical cancer progression and suggested the potential therapeutic target ability of miR-636 in treatment of cervical cancer.
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Affiliation(s)
- Qing-Lan Hu
- Department of Gynecology, Qinyuan Women and Children Hospital, Qingyuan, China
| | - Zun-Peng Xu
- Department of Prenatal Diagnosis Center, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Yun-Fei Lan
- Department of Pathology, Qinyuan Women and Children Hospital, Qingyuan, China
| | - Bei Li
- Department of National Demonstration Base for Early Childhood Development, Guangzhou Women and Children's Medical Center, Guangzhou, China
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