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Mysona DP, Purohit S, Richardson KP, Suhner J, Brzezinska B, Rungruang B, Hopkins D, Bearden G, Higgins R, Johnson M, Bin Satter K, McIndoe R, Ghamande S. Ovarian recurrence risk assessment using machine learning, clinical information, and serum protein levels to predict survival in high grade ovarian cancer. Sci Rep 2023; 13:20933. [PMID: 38016985 PMCID: PMC10684567 DOI: 10.1038/s41598-023-47983-z] [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: 06/26/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023] Open
Abstract
In ovarian cancer, there is no current method to accurately predict recurrence after a complete response to chemotherapy. Here, we develop a machine learning risk score using serum proteomics for the prediction of early recurrence of ovarian cancer after initial treatment. The developed risk score was validated in an independent cohort with serum collected prospectively during the remission period. In the discovery cohort, patients scored as low-risk had a median time to recurrence (TTR) that was not reached at 10 years compared to 10.5 months (HR 4.66, p < 0.001) in high-risk patients. In the validation cohort, low-risk patients had a median TTR which was not reached compared to 4.7 months in high-risk patients (HR 4.67, p = 0.009). In advanced-stage patients with a CA125 < 10, low-risk patients had a median TTR of 68 months compared to 6 months in high-risk patients (HR 2.91, p = 0.02). The developed risk score was capable of distinguishing the duration of remission in ovarian cancer patients. This score may help guide maintenance therapy and develop innovative treatments in patients at risk at high-risk of recurrence.
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Affiliation(s)
- David P Mysona
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA.
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA.
| | - Sharad Purohit
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
- Department of Undergraduate Health Professionals, College of Allied Health Sciences, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Katherine P Richardson
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Jessa Suhner
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Bogna Brzezinska
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Bunja Rungruang
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Diane Hopkins
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Gregory Bearden
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Robert Higgins
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Marian Johnson
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Khaled Bin Satter
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Richard McIndoe
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Sharad Ghamande
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
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2
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Markus V, Dalmizrak O, Edebal OH, Al-Nidawi M, Caleb J. Smartphone digital image colorimetry for quantification of serum proteins. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5018-5026. [PMID: 37740274 DOI: 10.1039/d3ay01424j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Colorimetric determination of proteins in serum is proposed based on the biuret method and replacing ultraviolet-visible spectrometric (UV-Vis) detection with a simple and affordable smartphone digital image colorimetric (SDIC) method. Optimum SDIC conditions were found as a detection wavelength of 555 nm, a region of interest of 1600 px2, and 9.0 cm between the detection camera and sample solution. Under the optimum conditions, the coefficient of determination was 0.9982 within a linear dynamic range of 0.022 to 0.35 g dL-1. The precision of the method based on the percent relative standard deviation was below 5%. The limit of detection and limit of quantitation were found to be 0.007 and 0.022 g dL-1 respectively, which were sufficient for the quantification of the total protein, albumin, and globulin in serum. The method was validated with an independent experiment using a UV-Vis method and both methods showed good statistical agreement, indicating the accuracy of the proposed SDIC method.
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Affiliation(s)
- Victor Markus
- Department of Medical Biochemistry, Faculty of Medicine, Near East University, Nicosia, 99138, Nicosia, TRNC Mersin 10, Turkey.
| | - Ozlem Dalmizrak
- Department of Medical Biochemistry, Faculty of Medicine, Near East University, Nicosia, 99138, Nicosia, TRNC Mersin 10, Turkey.
| | - Oğuz Han Edebal
- Department of Medical Biochemistry, Faculty of Medicine, Near East University, Nicosia, 99138, Nicosia, TRNC Mersin 10, Turkey.
| | - Mais Al-Nidawi
- Department of Analytical Chemistry, Faculty of Pharmacy, Near East University, Nicosia, 99138, Nicosia, TRNC Mersin 10, Turkey.
| | - Jude Caleb
- Department of Analytical Chemistry, Faculty of Pharmacy, Near East University, Nicosia, 99138, Nicosia, TRNC Mersin 10, Turkey.
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Chilimoniuk Z, Rocka A, Stefaniak M, Tomczyk Ż, Jasielska F, Madras D, Filip A. Molecular methods for increasing the effectiveness of ovarian cancer treatment: a systematic review. Future Oncol 2022; 18:1627-1650. [PMID: 35129396 DOI: 10.2217/fon-2021-0565] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background: The aim of the current study is to analyze and summarize the latest research on improving therapy in ovarian cancer. Materials & methods: Data analysis was based on a review of publications from 2011 to 2021 in the PubMed database with use of the search terms including 'EGFR ovarian cancer', 'folate receptor inhibitors ovarian cancer', 'VEGF ovarian cancer', 'PDGF ovarian cancer' and 'CTLA-4 ovarian cancer'. Results: 6643 articles were found; 238 clinical trials and randomized control trials were analyzed; 122 studies were rejected due to inconsistency with the topic of the work. Conclusion: Extensive research on the treatment of ovarian cancer increases the chance of developing the most effective therapy suited to the individual needs of the patient.
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Affiliation(s)
- Zuzanna Chilimoniuk
- Students' Scientific Association at the Department of Cancer Genetics with Cytogenetics Laboratory, Medical University of Lublin, ul. Radziwiłłowska 11, Lublin, 20-080, Poland
| | - Agata Rocka
- Students' Scientific Association at the Department of Cancer Genetics with Cytogenetics Laboratory, Medical University of Lublin, ul. Radziwiłłowska 11, Lublin, 20-080, Poland
| | - Martyna Stefaniak
- Students' Scientific Association at the Department of Cancer Genetics with Cytogenetics Laboratory, Medical University of Lublin, ul. Radziwiłłowska 11, Lublin, 20-080, Poland
| | - Żaklina Tomczyk
- Students' Scientific Association at the Department of Cancer Genetics with Cytogenetics Laboratory, Medical University of Lublin, ul. Radziwiłłowska 11, Lublin, 20-080, Poland
| | - Faustyna Jasielska
- Students' Scientific Association at the Department of Cancer Genetics with Cytogenetics Laboratory, Medical University of Lublin, ul. Radziwiłłowska 11, Lublin, 20-080, Poland
| | - Dominika Madras
- Students' Scientific Association at the Department of Cancer Genetics with Cytogenetics Laboratory, Medical University of Lublin, ul. Radziwiłłowska 11, Lublin, 20-080, Poland
| | - Agata Filip
- Department of Cancer Genetics with Cytogenetics Laboratory, Medical University of Lublin, ul. Radziwiłłowska 11, Lublin, 20-080, Poland
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Nikulin S, Zakharova G, Poloznikov A, Raigorodskaya M, Wicklein D, Schumacher U, Nersisyan S, Bergquist J, Bakalkin G, Astakhova L, Tonevitsky A. Effect of the Expression of ELOVL5 and IGFBP6 Genes on the Metastatic Potential of Breast Cancer Cells. Front Genet 2021; 12:662843. [PMID: 34149804 PMCID: PMC8206645 DOI: 10.3389/fgene.2021.662843] [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: 02/17/2021] [Accepted: 04/20/2021] [Indexed: 12/09/2022] Open
Abstract
Breast cancer (BC) is the leading cause of death from malignant neoplasms among women worldwide, and metastatic BC presents the biggest problems for treatment. Previously, it was shown that lower expression of ELOVL5 and IGFBP6 genes is associated with a higher risk of the formation of distant metastases in BC. In this work, we studied the change in phenotypical traits, as well as in the transcriptomic and proteomic profiles of BC cells as a result of the stable knockdown of ELOVL5 and IGFBP6 genes. The knockdown of ELOVL5 and IGFBP6 genes was found to lead to a strong increase in the expression of the matrix metalloproteinase (MMP) MMP1. These results were in good agreement with the correlation analysis of gene expression in tumor samples from patients and were additionally confirmed by zymography. The knockdown of ELOVL5 and IGFBP6 genes was also discovered to change the expression of a group of genes involved in the formation of intercellular contacts. In particular, the expression of the CDH11 gene was markedly reduced, which also complies with the correlation analysis. The spheroid formation assay showed that intercellular adhesion decreased as a result of the knockdown of the ELOVL5 and IGFBP6 genes. Thus, the obtained data indicate that malignant breast tumors with reduced expression of the ELOVL5 and IGFBP6 genes can metastasize with a higher probability due to a more efficient invasion of tumor cells.
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Affiliation(s)
- Sergey Nikulin
- Faculty of Biology and Biotechnologies, National Research University Higher School of Economics, Moscow, Russia
| | | | - Andrey Poloznikov
- Faculty of Biology and Biotechnologies, National Research University Higher School of Economics, Moscow, Russia.,School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Maria Raigorodskaya
- Faculty of Biology and Biotechnologies, National Research University Higher School of Economics, Moscow, Russia.,Scientific Research Centre Bioclinicum, Moscow, Russia
| | - Daniel Wicklein
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Udo Schumacher
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stepan Nersisyan
- Faculty of Biology and Biotechnologies, National Research University Higher School of Economics, Moscow, Russia
| | - Jonas Bergquist
- Department of Chemistry - BMC, Uppsala University, Uppsala, Sweden
| | - Georgy Bakalkin
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - Lidiia Astakhova
- Scientific Research Centre Bioclinicum, Moscow, Russia.,School of Life Sciences, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Alexander Tonevitsky
- Faculty of Biology and Biotechnologies, National Research University Higher School of Economics, Moscow, Russia.,Laboratory of Microfluidic Technologies for Biomedicine, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
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5
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Zhao C, Zhu X, Wang G, Wang W, Ju S, Wang X. Decreased expression of IGFBP6 correlates with poor survival in colorectal cancer patients. Pathol Res Pract 2020; 216:152909. [PMID: 32156471 DOI: 10.1016/j.prp.2020.152909] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 01/31/2020] [Accepted: 02/28/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND The insulin-like growth factor binding protein 6 (IGFBP6), as a specific inhibitor of IGF-Ⅱ, is a candidate human anti-oncogene in multiple tumors. However, the expression of IGFBP6 in colorectal cancer (CRC) and prognostic significance are unclear. METHODS In this study, we examined colorectal cancer tissues and adjacent normal tissues to determine the expression levels of IGFBP6 mRNA and protein by quantitative reverse-transcription polymerase chain reaction and tissue microarray immunohistochemistry analysis respectively. Moreover, we explored the effects of IGFBP6 on cell growth, migration and invasion by Cell Counting Kit-8(CCK8), colony formation and transwell migration assays. We also investigated whether IGFBP6 expression in tumor tissue correlated with various clinical parameters, including overall survival by univariate and multivariate analyses RESULTS: Both IGFBP6 mRNA and protein levels were significantly lower in colorectal cancer tissues than in adjacent normal colon. Downregulating IGFBP6 using RNAi increased CRC cell proliferation, migration and invasion. Low IGFBP6 expression correlated with poor overall survival in both univariate and multivariate analyses. CONCLUSION Our data suggest that IGFBP6 may act as a tumor suppressor gene in the development of CRC, and that low IGFBP6 expression could be used as an independent prognostic biomarker in CRC.
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Affiliation(s)
- Chunmei Zhao
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Xingjia Zhu
- Medical School of Nantong University, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Guihua Wang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China.
| | - Wei Wang
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Shaoqing Ju
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China.
| | - Xudong Wang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China; Clinical Tissue Bank, Department of Pathology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China.
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6
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Xing HB, Tong MT, Wang J, Hu H, Zhai CY, Huang CX, Li D. Suppression of IL-6 Gene by shRNA Augments Gemcitabine Chemosensitization in Pancreatic Adenocarcinoma Cells. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3195025. [PMID: 29693005 PMCID: PMC5859857 DOI: 10.1155/2018/3195025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 01/19/2018] [Accepted: 01/29/2018] [Indexed: 11/24/2022]
Abstract
Pancreatic adenocarcinoma has an exceedingly poor prognosis, accounting for five-year survival of less than 5%. Presently, improving the efficacy of pancreatic adenocarcinoma treatment has been the focus of medical researchers worldwide. Recently, it has been suggested that deregulation of interleukin- (IL-) 6 is caused by a key gene involved in the beginning and development of pancreatic adenocarcinoma. Herein, we investigated whether suppression of IL-6 could augment gemcitabine sensitivity in the PANC-1 cells. We found considerably higher expression of IL-6 in pancreatic adenocarcinoma tissues than that in the adjacent nontumorous tissues. Suppression of IL-6 by shRNA resulted in apoptosis as well as inhibition of cell proliferation and tumorigenicity. In addition, suppression of IL-6 remarkably promoted antitumor effect of gemcitabine, indicating that the combination of shRNA targeting IL-6 with gemcitabine may provide a potential clinical approach for pancreatic cancer therapy.
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Affiliation(s)
- Hai-Bo Xing
- Department of ICU, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Meng-Ting Tong
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jing Wang
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Hong Hu
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chong-Ya Zhai
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chang-Xin Huang
- Department of Medical Oncology, The Affiliated Hospital of Hangzhou Normal University, Zhejiang University, Hangzhou, China
| | - Da Li
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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7
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Chen Q, Qin S, Liu Y, Hong M, Qian CN, Keller ET, Zhang J, Lu Y. IGFBP6 is a novel nasopharyngeal carcinoma prognostic biomarker. Oncotarget 2018; 7:68140-68150. [PMID: 27623076 PMCID: PMC5356544 DOI: 10.18632/oncotarget.11886] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 09/01/2016] [Indexed: 11/25/2022] Open
Abstract
Insulin-like growth factor binding proteins (IGFBPs) play critical roles in carcinogenesis. This study assessed the impact of IGFBP6 on the progression of nasopharyngeal carcinoma (NPC). Using immunohistochemical analysis, we found that IGFBP6 was differentially expressed in primary malignant NPC tissues. Clinical samples were divided into two groups: IGFBP6(+) and IGFBP6(−). Five years of follow-up revealed that overall survival and distant metastasis-free survival rates were significantly higher in the IGFBP6(+) than IGFBP6(−) group. We also used real-time PCR, ELISA and western blot assays to measure IGFBP6 levels in five NPC cell lines (CNE1, CNE2, HONE1, HK1 and SUNE1). All the cell lines expressed IGFBP6, but at different levels, reflecting disease heterogeneity. In addition, exogenous expression of IGFBP6 inhibited CNE2 cell proliferation and invasion in vitro. IGFBP6 knockdown activated the GSK3β/β-catenin/cyclin D1 pathway and enhanced CNE2 tumor cell growth and metastasis in a mouse model. These results suggest that IGFBP6 may be an independent prognostic biomarker for NPC.
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Affiliation(s)
- Qiuyan Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Siyuan Qin
- Key Laboratory of Longevity and Aging-related Diseases, Ministry of Education, Guangxi Medical University, Nanning, Guangxi, China.,Center for Translational Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Yang Liu
- Key Laboratory of Longevity and Aging-related Diseases, Ministry of Education, Guangxi Medical University, Nanning, Guangxi, China.,Center for Translational Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Minghuang Hong
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Chao-Nan Qian
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China.,Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Evan T Keller
- Department of Urology and Pathology, University of Michigan School of Medicine, Ann Arbor, Michigan, USA
| | - Jian Zhang
- Key Laboratory of Longevity and Aging-related Diseases, Ministry of Education, Guangxi Medical University, Nanning, Guangxi, China.,Center for Translational Medicine, Guangxi Medical University, Nanning, Guangxi, China.,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Yi Lu
- Key Laboratory of Longevity and Aging-related Diseases, Ministry of Education, Guangxi Medical University, Nanning, Guangxi, China.,Center for Translational Medicine, Guangxi Medical University, Nanning, Guangxi, China.,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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8
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Purohit S, Li T, Guan W, Song X, Song J, Tian Y, Li L, Sharma A, Dun B, Mysona D, Ghamande S, Rungruang B, Cummings RD, Wang PG, She JX. Multiplex glycan bead array for high throughput and high content analyses of glycan binding proteins. Nat Commun 2018; 9:258. [PMID: 29343722 PMCID: PMC5772357 DOI: 10.1038/s41467-017-02747-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 12/22/2017] [Indexed: 12/28/2022] Open
Abstract
Glycan-binding proteins (GBPs) play critical roles in diverse cellular functions such as cell adhesion, signal transduction and immune response. Studies of the interaction between GBPs and glycans have been hampered by the availability of high throughput and high-content technologies. Here we report multiplex glycan bead array (MGBA) that allows simultaneous analyses of 384 samples and up to 500 glycans in a single assay. The specificity, sensitivity and reproducibility of MGBA are evaluated using 39 plant lectins, 13 recombinant anti-glycan antibodies, and mammalian GBPs. We demonstrate the utility of this platform by the analyses of natural anti-glycan IgM and IgG antibodies in 961 human serum samples and the discovery of anti-glycan antibody biomarkers for ovarian cancer. Our data indicate that the MGBA platform is particularly suited for large population-based studies that require the analyses of large numbers of samples and glycans.
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Affiliation(s)
- Sharad Purohit
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
- Department of Medical Laboratory, Imaging and Radiologic Sciences, College of Allied Health Sciences Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Tiehai Li
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Wanyi Guan
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Xuezheng Song
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Jing Song
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Yanna Tian
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Lei Li
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Ashok Sharma
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Boying Dun
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - David Mysona
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Sharad Ghamande
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Bunja Rungruang
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02115, USA
| | - Peng George Wang
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Jin-Xiong She
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA.
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA.
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9
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Xie X, Yang M, Ding Y, Yu L, Chen J. Formyl peptide receptor 2 expression predicts poor prognosis and promotes invasion and metastasis in epithelial ovarian cancer. Oncol Rep 2017; 38:3297-3308. [PMID: 29039544 PMCID: PMC5783575 DOI: 10.3892/or.2017.6034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 08/31/2017] [Indexed: 12/29/2022] Open
Abstract
Formyl peptide receptor 2 (FPR2) has been identified as a member of the G protein-coupled chemoattractant receptor (GPCR) family and has been implicated as playing a role in both inflammation and cancer development. Epithelial ovarian cancer (EOC) has been suggested to be correlated with both infectious and non-infectious inflammation. To date, the role of FPR2 in EOC remains poorly understood and controversial. In the present study, we aimed to investigate the potential of FPR2 in regulating EOC. We performed immunohistochemistry and RT-qPCR to analyzed expression of FPR2 in EOC tissues and the correlation between FPR2 and EOC clinicopathological characteristics as well as prognosis were also analyzed. To test the role of FPR2 in EOC cell migration, we established FPR2-knockdown SKOV3 cells and performed wound-healing, Transwell and angiogenesis assays to detect the metastatic potential of these EOC cells. Our studies found that FPR2 was overexpressed in EOC tissues and was positively correlated with EOC clinicopathological characteristics including the International Federation of Gynecology and Obstetrics (FIGO) stage, histological grade and ovarian cancer type. Survival analyses suggested that FPR2 overexpression indicated the poorer prognosis of EOC patients and FPR2 may act as an independent risk factor for EOC prognosis. FPR2 knockdown decreased the migration potential of the ovarian cancer cells. Moreover, serum amyloid A (SAA) may stimulate the migration of SKOV3 cells through FPR2. The present study suggested that FPR2 promoted the invasion and metastasis of EOC and it could be a prognostic marker for EOC.
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Affiliation(s)
- Xiaohui Xie
- Department of Obstetrics and Gynecology, Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Mengyuan Yang
- Department of Obstetrics and Gynecology, Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Yiling Ding
- Department of Obstetrics and Gynecology, Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Ling Yu
- Department of Obstetrics and Gynecology, Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Jianlin Chen
- Department of Obstetrics and Gynecology, Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
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10
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Lu W, Lu T, Wei X. Downregulation of DNMT3a expression increases miR-182-induced apoptosis of ovarian cancer through caspase-3 and caspase-9-mediated apoptosis and DNA damage response. Oncol Rep 2016; 36:3597-3604. [DOI: 10.3892/or.2016.5134] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 02/18/2016] [Indexed: 11/06/2022] Open
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11
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Yang R, Pagaduan JV, Yu M, Woolley AT. On chip preconcentration and fluorescence labeling of model proteins by use of monolithic columns: device fabrication, optimization, and automation. Anal Bioanal Chem 2014; 407:737-47. [PMID: 25012353 DOI: 10.1007/s00216-014-7988-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 06/16/2014] [Accepted: 06/20/2014] [Indexed: 12/20/2022]
Abstract
Microfluidic systems with monolithic columns have been developed for preconcentration and on-chip labeling of model proteins. Monoliths were prepared in microchannels by photopolymerization, and their properties were optimized by varying the composition and concentration of the monomers to improve flow and extraction. On-chip labeling of proteins was achieved by driving solutions through the monolith by use of voltage then incubating fluorescent dye with protein retained on the monolith. Subsequently, the labeled proteins were eluted, by applying voltages to reservoirs on the microdevice, and then detected, by monitoring laser-induced fluorescence. Monoliths prepared from octyl methacrylate combine the best protein retention with the possibility of separate elution of unattached fluorescent label with 50% acetonitrile. Finally, automated on-chip extraction and fluorescence labeling of a model protein were successfully demonstrated. This method involves facile sample pretreatment, and therefore has potential for production of integrated bioanalysis microchips.
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Affiliation(s)
- Rui Yang
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA
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