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Wang CW, Weaver SD, Boonpattrawong N, Schuster-Little N, Patankar M, Whelan RJ. A Revised Molecular Model of Ovarian Cancer Biomarker CA125 (MUC16) Enabled by Long-read Sequencing. Cancer Res Commun 2024; 4:253-263. [PMID: 38197671 PMCID: PMC10829539 DOI: 10.1158/2767-9764.crc-23-0327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/01/2023] [Accepted: 01/04/2024] [Indexed: 01/11/2024]
Abstract
The biomarker CA125, a peptide epitope located in several tandem repeats of the mucin MUC16, is the gold standard for monitoring regression and recurrence of high-grade serous ovarian cancer in response to therapy. However, the CA125 epitope along with several structural features of the MUC16 molecule are ill defined. One central aspect still unresolved is the number of tandem repeats in MUC16 and how many of these repeats contain the CA125 epitope. Studies from the early 2000s assembled short DNA reads to estimate that MUC16 contained 63 repeats.Here, we conduct Nanopore long-read sequencing of MUC16 transcripts from three primary ovarian tumors and established cell lines (OVCAR3, OVCAR5, and Kuramochi) for a more exhaustive and accurate estimation and sequencing of the MUC16 tandem repeats.The consensus sequence derived from these six sources was confirmed by proteomics validation and agrees with recent additions to the NCBI database. We propose a model of MUC16 containing 19-not 63-tandem repeats. In addition, we predict the structure of the tandem repeat domain using the deep learning algorithm, AlphaFold.The predicted structure displays an SEA domain and unstructured linker region rich in proline, serine, and threonine residues in all 19 tandem repeats. These studies now pave the way for a detailed characterization of the CA125 epitope. Sequencing and modeling of the MUC16 tandem repeats along with their glycoproteomic characterization, currently underway in our laboratories, will help identify novel epitopes in the MUC16 molecule that improve on the sensitivity and clinical utility of the current CA125 assay. SIGNIFICANCE Despite its crucial role in clinical management of ovarian cancer, the exact molecular sequence and structure of the biomarker, CA125, are not defined. Here, we combine long-read sequencing, mass spectrometry, and in silico modeling to provide the foundational dataset for a more complete characterization of the CA125 epitope.
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Affiliation(s)
- Chien-Wei Wang
- Department of Chemistry, University of Kansas, Lawrence, Kansas
| | - Simon D. Weaver
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana
- Integrated Biomedical Sciences Graduate Program, University of Notre Dame, Notre Dame, Indiana
| | - Nicha Boonpattrawong
- Department of Obstetrics and Gynecology, University of Wisconsin–Madison, Madison, Wisconsin
| | | | - Manish Patankar
- Department of Obstetrics and Gynecology, University of Wisconsin–Madison, Madison, Wisconsin
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Tu HF, Wong M, Tseng SH, Ingavat N, Olczak P, Notarte KI, Hung CF, Roden RBS. Virus-like particle vaccine displaying an external, membrane adjacent MUC16 epitope elicits ovarian cancer-reactive antibodies. J Ovarian Res 2024; 17:19. [PMID: 38225646 PMCID: PMC10790439 DOI: 10.1186/s13048-023-01325-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 12/12/2023] [Indexed: 01/17/2024] Open
Abstract
BACKGROUND MUC16 is a heavily glycosylated cell surface mucin cleaved in the tumor microenvironment to shed CA125. CA125 is a serum biomarker expressed by > 95% of non-mucinous advanced stage epithelial ovarian cancers. MUC16/CA125 contributes to the evasion of anti-tumor immunity, peritoneal spread and promotes carcinogenesis; consequently, it has been targeted with antibody-based passive and active immunotherapy. However, vaccination against this self-antigen likely requires breaking B cell tolerance and may trigger autoimmune disease. Display of self-antigens on virus-like particles (VLPs), including those produced with human papillomavirus (HPV) L1, can efficiently break B cell tolerance. RESULTS A 20 aa juxta-membrane peptide of the murine MUC16 (mMUC16) or human MUC16 (hMUC16) ectodomain was displayed either via genetic insertion into an immunodominant loop of HPV16 L1-VLPs between residues 136/137, or by chemical coupling using malemide to cysteine sulfhydryl groups on their surface. Female mice were vaccinated intramuscularly three times with either DNA expressing L1-MUC16 fusions via electroporation, or with alum-formulated VLP chemically-coupled to MUC16 peptides. Both regimens were well tolerated, and elicited MUC16-specific serum IgG, although titers were higher in mice vaccinated with MUC16-coupled VLP on alum as compared to L1-MUC16 DNA vaccination. Antibody responses to mMUC16-targeted vaccination cross-reacted with hMUC16 peptide, and vice versa; both were reactive with the surface of CA125+ OVCAR3 cells, but not SKOV3 that lack detectable CA125 expression. Interestingly, vaccination of mice with mMUC16 peptide mixed with VLP and alum elicited mMUC16-specific IgG, implying VLPs provide robust T help and that coupling may not be required to break tolerance to this epitope. CONCLUSION Vaccination with VLP displaying the 20 aa juxta-membrane MUC16 ectodomain, which includes the membrane proximal cleavage site, is likely to be well tolerated and induce IgG targeting ovarian cancer cells, even after CA125 is shed.
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Affiliation(s)
- Hsin-Fang Tu
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21287, USA
| | - Margaret Wong
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21287, USA
| | - Ssu-Hsueh Tseng
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21287, USA
| | - Nattha Ingavat
- Downstream Processing (DSP), Bioprocessing Technology Institute (BTI), Agency for Science, Technology, and Research (A*STAR), Singapore, 138632, Singapore
| | - Pola Olczak
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21287, USA
| | - Kin Israel Notarte
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21287, USA
| | - Chien-Fu Hung
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21287, USA
- Department of Oncology, Johns Hopkins University, Baltimore, MD, 21287, USA
| | - Richard B S Roden
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21287, USA.
- Department of Oncology, Johns Hopkins University, Baltimore, MD, 21287, USA.
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, 21287, USA.
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Liu S, Yuan L, Li J, Liu Y, Wang H, Ren X. circDENND4C, a novel serum marker for epithelial ovarian cancer, acts as a tumor suppressor by downregulating miR-200b/c. Ann Med 2023; 55:908-919. [PMID: 36896567 PMCID: PMC10795628 DOI: 10.1080/07853890.2023.2185289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/22/2023] [Indexed: 03/11/2023] Open
Abstract
RESEARCH OBJECTIVE To explore the diagnostic value of circ-DENN domain containing 4 C (circDENND4C) in epithelial ovarian cancer (EOC) and the corresponding mechanism. METHODS We determined the expression of circDENND4C and miR-200b/c in tissues and serum specimens as well as EOC cell lines using qRT-PCR. Basic clinical data, and serum HE4 and CAl25 levels were acquired from patients' clinical records. Expression-related correlations and the diagnostic value of serum circDENND4C in EOC were also estimated. CCK-8 and flow cytometry were performed to detect the effect of circDENND4C on cell proliferation and apoptosis. RESULTS circDENND4C level was lowest while miR-200b/c was highest in EOC tissues, followed by benign and normal tissues. Similarly, serum circDENND4C was lowest while miR-200b/c was highest in EOC patients. Moreover, serum circDENND4C was lower in patients with benign ovarian tumors than in healthy women, while miR-200b/c expression was higher. circDENND4C was negatively associated with miR-200b/c in EOC tissues and serum specimens, and serum circDENND4C was also negatively correlated with serum HE4 and CAl25 in EOC patients. circDENND4C expression in both tissue and serum was negatively related to FIGO and TNM stage, and tumor size in EOC. Serum circDENND4C could distinguish healthy persons from patients with benign ovarian tumors and EOC, and they showed a higher specificity and accuracy than serum CA125 or HE4 in EOC diagnosis. circDENND4C upregulation significantly suppressed EOC cell proliferation and facilitated apoptosis by downregulating miR-200b/c in vitro. CONCLUSIONS Summarily, circDENND4C acts as a tumor inhibitor by downregulating miR-200b/c in EOC and could be a possible tumor marker for EOC diagnosis.KEY MESSAGEScircDENND4C expression was lowest while miR-200b/c was highest in EOC tissues or serums, followed by benign and normal tissues or serums.circDENND4C was involved in malignant progression of EOC, concretely, overexpression of circDENND4C suppressed EOC cell proliferation and stimulated apoptosis via downregulating miR-200b/c, and circDENND4C expression in both tissue and serum was closely related to FIGO and TNM stages and tumor size in EOC.Serum circDENND4C showed a higher specificity and accuracy than serum CA125 or HE4 in EOC diagnosis.HIGHLIGHTScircDENND4C expression was lowest while miR-200b/c was highest in EOC tissues, followed by benign and normal tissues.Serum circDENND4C was lowest while miR-200b/c was highest in EOC patients, followed by benign patients and healthy women.Overexpression of circDENND4C suppresses EOC cell proliferation and stimulates apoptosis via downregulating miR-200b/c.circDENND4C expression in both tissue and serum was closely related to FIGO and TNM stage and tumor size in EOC.Serum circDENND4C showed a higher specificity and accuracy than serum CA125 or HE4 in EOC diagnosis.
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Affiliation(s)
- Shuang Liu
- Department of Gynecology, The Fifth People’s Hospital of Jinan, Jinan, China
| | - Limei Yuan
- Department of Obstetrics, The Fifth People’s Hospital of Jinan, Jinan, China
| | - Jinzhu Li
- Department of Gynecology, The Fifth People’s Hospital of Jinan, Jinan, China
| | - Yurong Liu
- Department of Gynecology, The Fifth People’s Hospital of Jinan, Jinan, China
| | - Haibo Wang
- Department of Gynecology, The Fifth People’s Hospital of Jinan, Jinan, China
| | - Xingye Ren
- Department of Gynecology, The Fourth Peoplés Hospital of Jinan, Jinan, China
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Chaudhary S, Appadurai MI, Maurya SK, Nallasamy P, Marimuthu S, Shah A, Atri P, Ramakanth CV, Lele SM, Seshacharyulu P, Ponnusamy MP, Nasser MW, Ganti AK, Batra SK, Lakshmanan I. MUC16 promotes triple-negative breast cancer lung metastasis by modulating RNA-binding protein ELAVL1/HUR. Breast Cancer Res 2023; 25:25. [PMID: 36918912 PMCID: PMC10012760 DOI: 10.1186/s13058-023-01630-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 03/01/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) is highly aggressive with an increased metastatic incidence compared to other breast cancer subtypes. However, due to the absence of clinically reliable biomarkers and targeted therapy in TNBC, outcomes are suboptimal. Hence, there is an urgent need to understand biological mechanisms that lead to identifying novel therapeutic targets for managing metastatic TNBC. METHODS The clinical significance of MUC16 and ELAVL1 or Hu antigen R (HuR) was examined using breast cancer TCGA data. Microarray was performed on MUC16 knockdown and scramble TNBC cells and MUC16-associated genes were identified using RNA immunoprecipitation and metastatic cDNA array. Metastatic properties of MUC16 were evaluated using tail vein experiment. MUC16 and HuR downstream pathways were confirmed by ectopic overexpression of MUC16-carboxyl-terminal (MUC16-Cter), HuR and cMyc as well as HuR inhibitors (MS-444 and CMLD-2) in TNBC cells. RESULTS MUC16 was highly expressed in TNBC and correlated with its target HuR. Depletion of MUC16 showed decreased invasion, migration, and colony formation abilities of human and mouse TNBC cells. Mice injected with MUC16 depleted cells were less likely to develop lung metastasis (P = 0.001). Notably, MUC16 and HuR were highly expressed in the lung tropic TNBC cells and lung metastases. Mechanistically, we identified cMyc as a HuR target in TNBC using RNA immunoprecipitation and metastatic cDNA array. Furthermore, MUC16 knockdown and pharmacological inhibition of HuR (MS-444 and CMLD-2) in TNBC cells showed a reduction in cMyc expression. MUC16-Cter or HuR overexpression models indicated MUC16/HuR/cMyc axis in TNBC cell migration. CONCLUSIONS Our study identified MUC16 as a TNBC lung metastasis promoter that acts through HuR/cMyc axis. This study will form the basis of future studies to evaluate the targeting of both MUC16 and HuR in TNBC patients.
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Affiliation(s)
- Sanjib Chaudhary
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Muthamil Iniyan Appadurai
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Shailendra Kumar Maurya
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Palanisamy Nallasamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Saravanakumar Marimuthu
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Ashu Shah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Pranita Atri
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Chirravuri Venkata Ramakanth
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Subodh M Lele
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198-5900, USA
| | - Parthasarathy Seshacharyulu
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Moorthy P Ponnusamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198-5900, USA
| | - Mohd W Nasser
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Apar Kishor Ganti
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
- Division of Oncology-Hematology, Department of Internal Medicine, VA Nebraska Western Iowa Health Care System, University of Nebraska Medical Center, Omaha, NE, 68105-1850, USA
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198-5900, USA.
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
| | - Imayavaramban Lakshmanan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
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5
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Yamashita T, Higashi M, Sugiyama H, Morozumi M, Momose S, Tamaru JI. Cancer Antigen 125 Expression Enhances the Gemcitabine/Cisplatin-Resistant Tumor Microenvironment in Bladder Cancer. Am J Pathol 2023; 193:350-361. [PMID: 36586479 DOI: 10.1016/j.ajpath.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 11/05/2022] [Accepted: 12/06/2022] [Indexed: 12/29/2022]
Abstract
Cancer antigen 125 (CA125) is one of the mucin family proteins and is a serum tumor marker for various tumors, such as ovarian cancer, endometrial cancer, pancreatic cancer, and bladder cancer. CA125 is used to distinguish between benign and malignant tumors, monitor the response to chemotherapy, and detect relapse after initial treatment. Recently, CA125 was reported to be involved in chemoresistance through the physical characteristics of mucin or by modifying the immune tumor-microenvironment. However, the relationship between CA125 expression and chemoresistance in bladder cancer is still unclear. In this study, the clinicopathologic features of bladder cancer with CA125 expression and the status of the tumor-microenvironment related to gemcitabine/cisplatin resistance were investigated using publicly available data sets (Cancer Genome Atlas Expression, GSE169455 data set) from the cBioPortal website, the National Center for Biotechnology Information website, and an in-house case collection of bladder cancer. The cases with CA125 expression had poorer disease-free and overall survival rates than those without CA125 expression. A mucinous area surrounding cancer cells was frequently detected in cases with CA125 expression (81%; 13/16 cases). CA125 expression was also related to the immunosuppressive tumor-microenvironment through the infiltration of immunosuppressive immune cells, such as regulatory T cells and M2 macrophages. These results suggest that the status of tumor-microenvironment associated with CA125 is involved in gemcitabine/cisplatin resistance in bladder cancer.
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Affiliation(s)
- Takahisa Yamashita
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Morihiro Higashi
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
| | - Hironori Sugiyama
- Department of Urology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Makoto Morozumi
- Department of Urology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Shuji Momose
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Jun-Ichi Tamaru
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
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Ferrer VP. MUC16 mutation is associated with tumor grade, clinical features, and prognosis in glioma patients. Cancer Genet 2023; 270-271:22-30. [PMID: 36436416 DOI: 10.1016/j.cancergen.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/21/2022] [Accepted: 11/16/2022] [Indexed: 11/20/2022]
Abstract
MUC16 is a member of the attached mucin family that encodes cancer antigen 125 (CA-125), but the association of MUC16 status with grade and subtypes of glioma patients has not yet been established. Data for MUC16 mRNA expression in 37 different cancer types were considered, and genomic data from the Cancer Genome Atlas (TCGA) from 1051 low-grade glioma (LGG) patients and 833 glioblastoma (GBM) patients were analyzed. LGG and GBM has low expression of MUC16, but it is frequently mutated in GBM. Kaplan-Meier survival analysis, glioma subtypes, methylation, and isocitrate dehydrogenase (IDH1) status were all performed. We found that mutated-MUC16 in LGG patients is associated with better prognosis considering overall survival (OS), IDH1, methylation, 1p/19q, and 10q status. Conversely, MUC16 mutation were related with worse prognosis in GBM patients upon analyzing those same parameters. Therefore, MUC16 mutations may assist in glioma diagnosis and prognosis and should be further studied in this tumor type.
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Affiliation(s)
- V P Ferrer
- Laboratory of Cell and Molecular Biology of Tumors, Department of Cell and Molecular Biology, Biology Institute, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
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Fraser CC, Jia B, Hu G, Al Johani LI, Fritz-Klaus R, Ham JD, Fichorova RN, Elias KM, Cramer DW, Patankar MS, Chen J. Ovarian Cancer Ascites Inhibits Transcriptional Activation of NK Cells Partly through CA125. J Immunol 2022; 208:2227-2238. [PMID: 35396222 PMCID: PMC10852100 DOI: 10.4049/jimmunol.2001095] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Malignant ascites is a common clinical problem in ovarian cancer. NK cells are present in the ascites, but their antitumor activity is inhibited. The underlying mechanisms of the inhibition have yet to be fully elucidated. Using an Fcγ receptor-mediated NK cell activation assay, we show that ascites from ovarian cancer patients potently inhibits NK cell activation. Part of the inhibitory activity is mediated by CA125, a mucin 16 fragment shed from ovarian cancer tumors. Moreover, transcriptional analyses by RNA sequencing reveal upregulation of genes involved in multiple metabolic pathways but downregulation of genes involved in cytotoxicity and signaling pathways in NK cells purified from ovarian cancer patient ascites. Transcription of genes involved in cytotoxicity pathways are also downregulated in NK cells from healthy donors after in vitro treatment with ascites or with a CA125-enriched protein fraction. These results show that ascites and CA125 inhibit antitumor activity of NK cells at transcriptional levels by suppressing expression of genes involved in NK cell activation and cytotoxicity. Our findings shed light on the molecular mechanisms by which ascites inhibits the activity of NK cells and suggest possible approaches to reactivate NK cells for ovarian cancer immunotherapy.
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Affiliation(s)
- Christopher C Fraser
- Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Bin Jia
- Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Guangan Hu
- Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | | | - Roberta Fritz-Klaus
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, Wisconsin
| | - James Dongjoo Ham
- Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Raina N Fichorova
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; and
| | - Kevin M Elias
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Daniel William Cramer
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts; and
| | - Manish S Patankar
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Jianzhu Chen
- Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts;
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8
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Hu S, Zhao X, Qian F, Jin C, Hou K. Correlation between LRP1B Mutations and Tumor Mutation Burden in Gastric Cancer. Comput Math Methods Med 2021; 2021:1522250. [PMID: 34603481 PMCID: PMC8481040 DOI: 10.1155/2021/1522250] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/03/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND It has been shown that low-density lipoprotein receptor-related protein 1B (LRP1B) mutations correlate with tumor mutation burden (TMB) and prognosis in patients with melanoma and non-small-cell lung cancer, while the relationship between LRP1B mutations and TMB in gastric cancer needs further study. This study is aimed at exploring the relationship between LRP1B mutations and TMB in gastric cancer. METHODS Mutation frequency profiles of the genes in patients with gastric cancer in TCGA-STAD dataset were analyzed by bioinformatics analysis. The relationship among LRP1B mutations, TMB, and patient clinical features in gastric cancer was investigated by the chi-square test. The TMB prediction capacity based on LRP1B mutation status was evaluated by ROC curves. RESULTS LRP1B is one of the top 10 genes with high gene mutation frequency in gastric cancer. The mutation status of LRP1B in gastric cancer patients was significantly correlated with age and TP53 and MUC16 mutation status. The result of ROC curve analysis revealed that the mutation status of LRP1B could be considered as an indicator of the degree of TMB in patients with gastric cancer. CONCLUSION This study presented the relationship between TMB and LRP1B mutations in gastric cancer, providing a novel perspective for gastric cancer prognosis and therapy.
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Affiliation(s)
- Sizhe Hu
- Department of Gastrointestinal Surgery, Affiliated Dongyang People's Hospital of Wenzhou Medical University, Zhejiang Province 322100, China
| | - Xiaokang Zhao
- Department of Gastrointestinal Surgery, Affiliated Dongyang People's Hospital of Wenzhou Medical University, Zhejiang Province 322100, China
| | - Feng Qian
- Department of Gastrointestinal Surgery, Affiliated Dongyang People's Hospital of Wenzhou Medical University, Zhejiang Province 322100, China
| | - Cancan Jin
- Department of Gastrointestinal Surgery, Affiliated Dongyang People's Hospital of Wenzhou Medical University, Zhejiang Province 322100, China
| | - Kaishun Hou
- Department of Gastrointestinal Surgery, Affiliated Dongyang People's Hospital of Wenzhou Medical University, Zhejiang Province 322100, China
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Ballester B, Milara J, Montero P, Cortijo J. MUC16 Is Overexpressed in Idiopathic Pulmonary Fibrosis and Induces Fibrotic Responses Mediated by Transforming Growth Factor-β1 Canonical Pathway. Int J Mol Sci 2021; 22:ijms22126502. [PMID: 34204432 PMCID: PMC8235375 DOI: 10.3390/ijms22126502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/30/2021] [Accepted: 06/15/2021] [Indexed: 12/16/2022] Open
Abstract
Several transmembrane mucins have demonstrated that they contribute intracellularly to induce fibrotic processes. The extracellular domain of MUC16 is considered as a biomarker for disease progression and death in IPF patients. However, there is no evidence regarding the signalling capabilities of MUC16 that contribute to IPF development. Here, we demonstrate that MUC16 was overexpressed in the lung tissue of IPF patients (n = 20) compared with healthy subjects (n = 17) and localised in fibroblasts and hyperplastic alveolar type II cells. Repression of MUC16 expression by siRNA-MUC16 transfection inhibited the TGF-β1-induced fibrotic processes such as mesenchymal/ myofibroblast transformations of alveolar type II A549 cells and lung fibroblasts, as well as fibroblast proliferation. SiRNA-MUC16 transfection also decreased the TGF-β1-induced SMAD3 phosphorylation, thus inhibiting the Smad Binding Element activation. Immunoprecipitation assays and confocal immunofluorescence showed the formation of a protein complex between MUC16/p-SMAD3 in the cell membrane after TGF-β1 stimulation. This study shows that MUC16 is overexpressed in IPF and collaborates with the TGF-β1 canonical pathway to induce fibrotic processes. Therefore, direct or indirect targeting of MUC16 could be a potential drug target for human IPF.
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Affiliation(s)
- Beatriz Ballester
- Comprehensive Pneumology Center (CPC), Helmholtz Zentrum München, 85764 Munich, Germany
- CIBERES, Health Institute Carlos III, 46010 Valencia, Spain;
- Correspondence: (B.B.); (J.M.); Tel.: +34-605148470 (B.B.); +34-963864631 (J.M.)
| | - Javier Milara
- CIBERES, Health Institute Carlos III, 46010 Valencia, Spain;
- Pharmacy Unit, General University Hospital, 46010 Valencia, Spain
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain;
- Correspondence: (B.B.); (J.M.); Tel.: +34-605148470 (B.B.); +34-963864631 (J.M.)
| | - Paula Montero
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain;
| | - Julio Cortijo
- CIBERES, Health Institute Carlos III, 46010 Valencia, Spain;
- Department of Pharmacology, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain;
- Research and Teaching Unit, University General Hospital Consortium, 46010 Valencia, Spain
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Pandey R, Zhou M, Chen Y, Darmoul D, Kisiel CC, Nfonsam VN, Ignatenko NA. Molecular Pathways Associated with Kallikrein 6 Overexpression in Colorectal Cancer. Genes (Basel) 2021; 12:749. [PMID: 34065672 PMCID: PMC8157155 DOI: 10.3390/genes12050749] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/01/2021] [Accepted: 05/14/2021] [Indexed: 12/16/2022] Open
Abstract
Colorectal cancer (CRC) remains one of the leading causes of cancer-related death worldwide. The high mortality of CRC is related to its ability to metastasize to distant organs. The kallikrein-related peptidase Kallikrein 6 (KLK6) is overexpressed in CRC and contributes to cancer cell invasion and metastasis. The goal of this study was to identify KLK6-associated markers for the CRC prognosis and treatment. Tumor Samples from the CRC patients with significantly elevated KLK6 transcript levels were identified in the RNA-Seq data from Cancer Genome Atlas (TCGA) and their expression profiles were evaluated using Gene Ontology (GO), Phenotype and Reactome enrichment, and protein interaction methods. KLK6-high cases had a distinct spectrum of mutations in titin (TTN), APC, K-RAS, and MUC16 genes. Differentially expressed genes (DEGs) found in the KLK6-overexpressing CRCs were associated with cell signaling, extracellular matrix organization, and cell communication regulatory pathways. The top KLK6-interaction partners were found to be the members of kallikrein family (KLK7, KLK8, KLK10), extracellular matrix associated proteins (keratins, integrins, small proline rich repeat, S100A families) and TGF-β, FOS, and Ser/Thr protein kinase signaling pathways. Expression of selected KLK6-associated genes was validated in a subset of paired normal and tumor CRC patient-derived organoid cultures. The performed analyses identified KLK6 itself and a set of genes, which are co-expressed with KLK6, as potential clinical biomarkers for the management of the CRC disease.
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Affiliation(s)
- Ritu Pandey
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85721, USA;
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724, USA;
| | - Muhan Zhou
- Bioinformatics Shared Resource, University of Arizona Cancer Center, Tucson, AZ 85724, USA; (M.Z.); (Y.C.)
| | - Yuliang Chen
- Bioinformatics Shared Resource, University of Arizona Cancer Center, Tucson, AZ 85724, USA; (M.Z.); (Y.C.)
| | - Dalila Darmoul
- Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Paris, Lariboisière Hospital, 75010 Paris, France;
| | - Conner C. Kisiel
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724, USA;
| | - Valentine N. Nfonsam
- Department of Surgery, Section of Surgical Oncology, University of Arizona, Tucson, AZ 85724, USA;
| | - Natalia A. Ignatenko
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85721, USA;
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724, USA;
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Wang X, Yu X, Krauthammer M, Hugo W, Duan C, Kanetsky PA, Teer JK, Thompson ZJ, Kalos D, Tsai KY, Smalley KSM, Sondak VK, Chen YA, Conejo-Garcia JR. The Association of MUC16 Mutation with Tumor Mutation Burden and Its Prognostic Implications in Cutaneous Melanoma. Cancer Epidemiol Biomarkers Prev 2020; 29:1792-1799. [PMID: 32611582 PMCID: PMC7483810 DOI: 10.1158/1055-9965.epi-20-0307] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/29/2020] [Accepted: 06/22/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND MUC16 is a mucin marker that is frequently mutated in melanoma, but whether MUC16 mutations could be useful as a surrogate biomarker for tumor mutation burden (TMB) remains unclear. METHODS This study rigorously evaluates the MUC16 mutation as a clinical biomarker in cutaneous melanoma by utilizing genomic and clinical data from patient samples from The Cancer Genome Atlas (TCGA) and two independent validation cohorts. We further extended the analysis to studies with patients treated with immunotherapies. RESULTS Analysis results showed that samples with MUC16 mutations had a higher TMB than the samples of wild-type, with strong statistical significance (P < 0.001) in all melanoma cohorts tested. Associations between MUC16 mutations and TMB remained statistically significant after adjusting for potential confounding factors in the TCGA cohort [OR, 9.28 (95% confidence interval (CI), 5.18-17.39); P < 0.001], Moffitt cohort [OR, 31.95 (95% CI, 8.71-163.90); P < 0.001], and Yale cohort [OR, 8.09 (95% CI, 3.12-23.79); P < 0.01]. MUC16 mutations were also found to be associated with overall survival in the TCGA [HR, 0.62; (95% CI, 0.45-0.85); P < 0.01] and Moffitt cohorts [HR, 0.49 (95% CI, 0.28-0.87); P = 0.014]. Strikingly, MUC16 is the only top frequently mutated gene for which prognostic significance was observed. MUC16 mutations were also found valuable in predicting anti-CTLA-4 and anti-PD-1 therapy responses. CONCLUSIONS MUC16 mutation appears to be a useful predictive marker of global TMB and patient survival in melanoma. IMPACT This is, to the best of our knowledge, the first systematic evaluation of MUC16 mutation as a clinical biomarker and a predictive biomarker for immunotherapy in melanoma.
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Affiliation(s)
- Xuefeng Wang
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida.
| | - Xiaoqing Yu
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | | | - Willy Hugo
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Chunzhe Duan
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Peter A Kanetsky
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Jamie K Teer
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Zachary J Thompson
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Denise Kalos
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Kenneth Y Tsai
- Department of Pathology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Keiran S M Smalley
- Department of Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Vernon K Sondak
- Department of Cutaneous Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Y Ann Chen
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida.
| | - Jose R Conejo-Garcia
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida.
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12
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Abstract
IMPORTANCE As the third most frequently mutated gene in cancers, the association between MUC16 mutation and response to immune checkpoint inhibitors (ICIs) in solid tumors remains unclear. OBJECTIVE To examine whether MUC16 mutation is associated with genomic factors in ICI response in solid tumors and with outcomes in ICI-treated patients. DESIGN, SETTING, AND PARTICIPANTS This cohort study used multidimensional genomic data of 10 195 patients from The Cancer Genome Atlas (TCGA) across 30 solid tumor types, 56 patients from a non-small cell lung cancer (NSCLC) cohort, and 145 patients from a melanoma cohort. Genomic factors associated with ICI response covered tumor mutational burden, neoantigens, immune-related gene signatures, and tumor immune microenvironment. Both NSCLC and melanoma cohorts included ICI-treated patients. The TCGA cohort was used to examine the association of MUC16 mutation with genomic factors. Two ICI-treated cohorts were used to explore the significance of outcomes associated with MUC16 mutation, using Kaplan-Meier curves and Cox models with adjusting for potential confounders. Gene set enrichment analysis was used to identify MUC16 mutation-associated biological processes. Data were obtained from October 1 through October 10, 2019, and were analyzed from October 11 through December 31, 2019. MAIN OUTCOMES AND MEASURES Genomic factors associated with ICI response, overall survival, and clinical response. RESULTS Of the 10 195 patients, 4821 (47.6%) were men (median [interquartile range {IQR}] age, 60 [50-70] years). MUC16 was mutated in 2006 of 10 195 patients (19.68%). In this pan-cancer data set, patients with MUC16 mutation had higher tumor mutational burden (median [IQR], 230 [93-595] mutations vs 48 [25-92] mutations; difference, 182 mutations; 95% CI, 164-199 mutations; P < .001) and neoantigen load (median [IQR], 179 [74-394.5] neoantigens vs 48 [24-89] neoantigens; difference, 131 antigens; 95% CI, 116.5-145 neoantigens; P < .001) than those without mutations. The tumor immune microenvironment with dual-positive CD8A and PD-L1 was overrepresented in MUC16-mutated tumors compared with wild-type ones (43.8% vs 32.4%; odds ratio, 1.63; 95% CI, 1.46-1.80; P < .001). Of the 40 immune-related genes, 37 (92.5%) exhibited differential expression between 2 states. MUC16 mutation was associated with improved overall survival in both the NSCLC (hazard ratio, 0.34; 95% CI, 0.12-0.99; P = .04) and melanoma (hazard ratio, 0.57; 95% CI, 0.36-0.90; P = .02) cohorts. The improvement persisted after adjusting for age, sex, and dominant mutational signatures in the melanoma cohort (hazard ratio, 0.57; 95% CI, 0.33-0.96; P = .04). MUC16 mutation was associated with greater response rates in the NSCLC cohort (odds ratio, 4.03; 95% CI, 1.06-16.43; P = .03) and the melanoma cohort (odds ratio, 3.38; 95% CI, 1.07-14.25; P = .03). Gene set enrichment analysis revealed that gene sets regarding cell proliferation and immune response were enriched in MUC16-mutated tumors (false discovery rate, <.001). CONCLUSIONS AND RELEVANCE MUC16 mutation appears to be associated with reported genomic factors associated with response to and improved outcomes for ICI treatment in solid tumors. It may hold promise as a marker for guiding immunotherapeutic responsiveness.
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Affiliation(s)
- Lei Zhang
- Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Department of Medical Oncology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiaohong Han
- Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Department of Medical Oncology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Clinical Pharmacology Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yuankai Shi
- Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Department of Medical Oncology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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13
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Wang Q, Yang Y, Yang M, Li X, Chen K. High mutation load, immune-activated microenvironment, favorable outcome, and better immunotherapeutic efficacy in melanoma patients harboring MUC16/CA125 mutations. Aging (Albany NY) 2020; 12:10827-10843. [PMID: 32491995 PMCID: PMC7346065 DOI: 10.18632/aging.103296] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 04/28/2020] [Indexed: 04/18/2023]
Abstract
Immunotherapies have dramatically improved survival outcome for patients with melanoma. MUC16 encodes cancer antigen 125 (CA125), which is frequently mutated in melanoma. In this study, we correlated the MUC16 mutational status with the following: tumor mutation burden (TML), multiple immune-related signals in microenvironment, deregulated pathways, survival outcome, and immunotherapeutic efficacy. We found that patients with MUC16 mutations had significantly higher TML than those without it. Enriched pro-inflammatory CD8 T cells and M1 macrophages, enhanced interferon gamma (IFNγ) and T cell-inflamed signatures, and increased cytolytic activity were associated with MUC16 mutations. Immune-suppressive M2 macrophages were enriched in patients with wild-type MUC16. Immune checkpoints expression (e.g., PD-L1, PD-1 and CTLA-4) was also elevated in patients with MUC16 mutations. Immune response relevant circuits were among the top enriched pathways in samples with MUC16 mutations. Patients with MUC16 mutations exhibited a significantly better prognosis. For patients who received immunotherapy, the presence of MUC16 mutations was associated with a better response rate and survival outcome in male patients but not in female or overall patients. These findings provide new implications for tailoring immunotherapeutic strategies for melanoma patients.
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Affiliation(s)
- Qinghua Wang
- Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Yichen Yang
- Tianjin Cancer Institute, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy of Tianjin, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Meng Yang
- Tianjin Cancer Institute, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy of Tianjin, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Xiangchun Li
- Tianjin Cancer Institute, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy of Tianjin, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Kexin Chen
- Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Key Laboratory of Molecular Cancer Epidemiology of Tianjin, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
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14
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Fan K, Wang J, Sun W, Shen S, Ni X, Gong Z, Zheng B, Gao Z, Ni X, Suo T, Liu H, Liu H. MUC16 C-terminal binding with ALDOC disrupts the ability of ALDOC to sense glucose and promotes gallbladder carcinoma growth. Exp Cell Res 2020; 394:112118. [PMID: 32502493 DOI: 10.1016/j.yexcr.2020.112118] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 12/20/2022]
Abstract
The MUC16 C-terminal (MUC16c) level is associated with tumor serum CA-125 levels, however, the roles remain unclear in gallbladder carcinoma (GBC). In this study, we found that MUC16c promoted glucose uptake and glycolysis for GBC cell proliferation. Mass spectrometry analysis suggested that MUC16c could combine with aldolase. The ALDOC mRNA and protein are overexpressed in GBC tumors. The IHC results also showed the consistent up-regulation of. ALDOC and MUC16c level in GBC tumor tissues than in peritumor tissues. We determined that MUC16c combining with ALDOC promoted ALDOC protein stability and disrupted the ability of ALDOC sensing glucose deficiency, which activated AMPK pathway and increased GBC cell proliferation. ALDOC knockdown significantly inhibited the glucose uptake and glycolysis induced by MUC16c. Our study established important roles of MUC16c promoting GBC cell glycolysis and proliferation and revealed the underlying mechanism of CA-125-related heavy tumor metabolic burden in GBC.
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Affiliation(s)
- Kun Fan
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Jiwen Wang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Wentao Sun
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Sheng Shen
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Xiaojian Ni
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Zijun Gong
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Bohao Zheng
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Zhihui Gao
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Xiaoling Ni
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Tao Suo
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China.
| | - Houbao Liu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China.
| | - Han Liu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Institute, Fudan University, Shanghai, China.
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15
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Abstract
This cohort study investigates whether MUC16 variation could be a useful biomarker for immune checkpoint inhibitor (ICI) therapy.
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Affiliation(s)
- Yunfang Yu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Medical Oncology, Phase I Clinical Trial Centre, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dagui Lin
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Anlin Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Medical Oncology, Phase I Clinical Trial Centre, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Medical University, Zhanjiang, China
| | - Yongjian Chen
- Department of Medical Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qiyun Ou
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Medical Oncology, Phase I Clinical Trial Centre, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hai Hu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Medical Oncology, Phase I Clinical Trial Centre, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Herui Yao
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Medical Oncology, Phase I Clinical Trial Centre, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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16
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Mani R, Shobha PS, Thilagavathi S, Prema P, Viswanathan N, Vineet R, Dhanashree R, Angayarkanni N. Altered mucins and aquaporins indicate dry eye outcome in patients undergoing Vitreo-retinal surgery. PLoS One 2020; 15:e0233517. [PMID: 32437405 PMCID: PMC7241722 DOI: 10.1371/journal.pone.0233517] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 05/06/2020] [Indexed: 11/18/2022] Open
Abstract
Vitreo-retinal (VR) surgeries induce conjunctival changes. However, there are no study reports regarding prevalence and severity of dry eye after these surgeries. This study evaluated dry eye outcome after VR surgery. Patients undergoing VR surgery classified as scleral buckle and microincision vitrectomy surgery (n = 44, mean age: 56.09±10.2 years) were recruited. Dry eye evaluation was done before and 8 weeks after surgery (2 weeks after omitting topical eye drops). Conjunctival imprint cytology for goblet cell count and tear Mucin 5AC (MUC5AC) protein estimation was done. Gene expressions of MUC5AC, MUC4, MUC16, Aquaporin 4 (AQP4) and AQP5 were analyzed in the conjunctival imprint cells by qPCR. None of the patients exhibited clinical signs of dry eye after VR surgery. But the conjunctival goblet cell density (GCD) was significantly lowered post-VR surgery (63% cases, **p = 0.012) with no alterations in the tear MUC5AC protein. Post-VR surgery, the conjunctival cell gene expression of MUC4, MUC16 and AQP4 were significantly increased (*p = 0.025, *p = 0.05 and *p = 0.02 respectively) and AQP5 was significantly lowered (*p = 0.037), with no change in MUC5AC expression. Tear cytokines were significantly increased post-VR surgery (anti-inflammatory: IL1RA, IL4, IL5, IL9, FGF; PDGFbb and pro-inflammatory: IL2, IL6, IL15, GMCSF and IFNg). Though clinical signs of dry eye were not observed after VR surgery, ocular surface changes in the form of reduced GCD, altered MUC5AC, MUC4, MUC16, AQP4, AQP5 and cytokines are suggestive of dry eye outcome at the molecular level especially inpatients aged above 51 years, especially female gender and those who are diabetic.
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Affiliation(s)
- Ramalingam Mani
- RS Mehta Jain Department of Biochemistry and Cell Biology, Vision Research Foundation, SankaraNethralaya, Chennai, India
| | - P. S. Shobha
- Elite School of Optometry, Medical Research Foundation, SankaraNethralaya, Chennai, India
| | - Saravanan Thilagavathi
- Elite School of Optometry, Medical Research Foundation, SankaraNethralaya, Chennai, India
| | - Padmanabhan Prema
- Department of Cornea and Refractive Surgery, Medical Research Foundation, SankaraNethralaya, Chennai, India
| | - Natarajan Viswanathan
- Department of Bio-Statistics, Vision Research Foundation, SankaraNethralaya, Chennai, India
| | - Ratra Vineet
- Department of Comprehensive Ophthalmology, Medical Research Foundation, SankaraNethralaya, Chennai, India
| | - Ratra Dhanashree
- Department of Vitreo-retinal Diseases, Medical Research Foundation, SankaraNethralaya, Chennai, India
| | - Narayanasamy Angayarkanni
- RS Mehta Jain Department of Biochemistry and Cell Biology, Vision Research Foundation, SankaraNethralaya, Chennai, India
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17
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Dinh TA, Sritharan R, Smith FD, Francisco AB, Ma RK, Bunaciu RP, Kanke M, Danko CG, Massa AP, Scott JD, Sethupathy P. Hotspots of Aberrant Enhancer Activity in Fibrolamellar Carcinoma Reveal Candidate Oncogenic Pathways and Therapeutic Vulnerabilities. Cell Rep 2020; 31:107509. [PMID: 32294439 PMCID: PMC7474926 DOI: 10.1016/j.celrep.2020.03.073] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 02/11/2020] [Accepted: 03/23/2020] [Indexed: 02/07/2023] Open
Abstract
Fibrolamellar carcinoma (FLC) is a rare, therapeutically intractable liver cancer that disproportionately affects youth. Although FLC tumors exhibit a distinct gene expression profile, the chromatin regulatory landscape and the genes most critical for tumor cell survival remain unclear. Here, we use chromatin run-on sequencing to discover ∼7,000 enhancers and 141 enhancer hotspots activated in FLC relative to nonmalignant liver. Bioinformatic analyses reveal aberrant ERK/MEK signaling and candidate master transcriptional regulators. We also define the genes most strongly associated with hotspots of FLC enhancer activity, including CA12 and SLC16A14. Treatment of FLC cell models with inhibitors of CA12 or SLC16A14 independently reduce cell viability and/or significantly enhance the effect of the MEK inhibitor cobimetinib. These findings highlight molecular targets for drug development, as well as drug combination approaches.
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Affiliation(s)
- Timothy A Dinh
- Curriculum in Genetics & Molecular Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Ramja Sritharan
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - F Donelson Smith
- Department of Pharmacology, University of Washington Medical Center, Seattle, WA 98195, USA
| | - Adam B Francisco
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Rosanna K Ma
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Rodica P Bunaciu
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Matt Kanke
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Charles G Danko
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA; Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Andrew P Massa
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - John D Scott
- Department of Pharmacology, University of Washington Medical Center, Seattle, WA 98195, USA
| | - Praveen Sethupathy
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.
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18
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Shen H, Guo M, Wang L, Cui X. MUC16 facilitates cervical cancer progression via JAK2/STAT3 phosphorylation-mediated cyclooxygenase-2 expression. Genes Genomics 2019; 42:127-133. [PMID: 31736008 DOI: 10.1007/s13258-019-00885-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 11/03/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVES MUC16 (mucin 16, also known as CA-125, cancer antigen 125, carcinoma antigen 125, or carbohydrate antigen 125) has been predicted as tumor biomarker for therapy. We determined to investigate effects and regulatory mechanism of MUC16 on cervical tumorigenesis. METHODS Expression levels of MUC16 in cervical cancer cell lines was analyzed via qRT-PCR (quantitative real-time polymerase chain reaction). Knockdown of MUC16 was conducted via shRNA (Short hairpin RNA) transfection. MTT and colony formation assays were used to investigate effect of MUC16 on cell proliferation. Wound healing assay was utilized to detect migration and transwell assay to detect invasion. The underlying mechanism was demonstrated via western blot analysis. RESULTS MUC16 was elevated in cervical cancer cell lines. MUC16 knockdown inhibited cell proliferation, invasion and migration. Gain- and loss-of functional assays revealed that over-expression of MUC16 activated Janus Kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) via phosphorylation, thus facilitating cyclooxygenase-2 (COX-2) expression, while knockdown of MUC16 demonstrated the reverse effect on JAK2/STAT3 activation and COX-2 expression. Moreover, inhibition of JAK2/STAT3 attenuated the regulation of MUC16 on COX-2. CONCLUSIONS MUC16 enhanced proliferation and invasion of cervical cancer cells via JAK2/STAT3 phosphorylation-mediated cyclooxygenase-2 expression, suggesting the potential therapeutic target ability of MUC16 to treat cervical cancer.
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Affiliation(s)
- Hui Shen
- Department of Gynaecology and Obstetrics, The Affiliated Sir Run Run Hospital of Nanjing Medical University, No. 109 Longmian Avenue, Jiangning District, Nanjing, 211166, China.
| | - Meng Guo
- Department of Gynaecology and Obstetrics, The Affiliated Sir Run Run Hospital of Nanjing Medical University, No. 109 Longmian Avenue, Jiangning District, Nanjing, 211166, China
| | - Lu Wang
- Department of Gynaecology and Obstetrics, The Affiliated Sir Run Run Hospital of Nanjing Medical University, No. 109 Longmian Avenue, Jiangning District, Nanjing, 211166, China
| | - Xinyue Cui
- Department of Gynaecology and Obstetrics, The Affiliated Sir Run Run Hospital of Nanjing Medical University, No. 109 Longmian Avenue, Jiangning District, Nanjing, 211166, China
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19
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Kiss I, Pospisilova E, Kolostova K, Maly V, Stanek I, Lischke R, Schutzner J, Pawlak I, Bobek V. Circulating Endometrial Cells in Women With Spontaneous Pneumothorax. Chest 2019; 157:342-355. [PMID: 31542450 DOI: 10.1016/j.chest.2019.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 08/23/2019] [Accepted: 09/01/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The occurrence of catamenial pneumothorax (CP) is rare, and the awareness of this diagnosis among physicians is insufficient. CP is highly correlated with pelvic endometriosis and remains the most common form of thoracic endometriosis syndrome. Circulating endometrial cells (CECs) have been previously detected in patients with pelvic endometriosis. Could CECs bring new insights into pneumothorax management? METHODS This study aims to describe the occurrence and molecular characteristics of CECs in women with spontaneous pneumothorax (SP) (N = 20) with high suspicion of its catamenial character. CECs were enriched from peripheral blood by size-based separation (MetaCell). In addition to cytomorphology, gene expression profiling of captured cells was performed for 24 endometriosis-associated genes. RESULTS CECs were present in all 20 patients with SP. Enriched CECs exhibited four character features: epithelial, stem cell-like, stroma-like, and glandular. However, not all of them were present in every sampling. Gene expression profiling revealed two distinct phenotypes of CECs in SP and/or CP: one of them refers to the diaphragm openings syndrome and the other to endometrial tissue pleural implantations. Comparisons of the gene expression profiles of CECs in pneumothorax (CECs-SP group) with CECs in pelvic endometriosis (CECs-non-SP group) have revealed significantly higher expression of HER2 in the CECs-SP group compared with the CECs-non-SP group. CONCLUSIONS This proof-of-concept study demonstrates successful isolation and characterization of CECs in patients with SP. Identification of CECs in SP could alert endometriosis involvement and help early referral to gynecologic consultation for further examination and treatment.
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Affiliation(s)
- Imrich Kiss
- Department of Laboratory Genetics, Laboratory Diagnostics, Third Faculty of Medicine, Charles University Prague and University Hospital Kralovske Vinohrady, Prague, Czech Republic; Department of Gynecology, Military University Hospital and the 3rd Faculty of Medicine, Charles University, Prague, Czech Republic; 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Eliska Pospisilova
- Department of Laboratory Genetics, Laboratory Diagnostics, Third Faculty of Medicine, Charles University Prague and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Katarina Kolostova
- Department of Laboratory Genetics, Laboratory Diagnostics, Third Faculty of Medicine, Charles University Prague and University Hospital Kralovske Vinohrady, Prague, Czech Republic; Cellpeutics Sp.z o.o., Wroclaw, Poland
| | - Vilem Maly
- Department of Thoracic Surgery, Krajska zdravotni a.s. Hospital Usti nad Labem, Czech Republic
| | - Ivan Stanek
- Department of Thoracic Surgery, Krajska zdravotni a.s. Hospital Usti nad Labem, Czech Republic
| | - Robert Lischke
- 3rd Department of Surgery, University Hospital FN Motol and 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jan Schutzner
- 3rd Department of Surgery, University Hospital FN Motol and 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Ireneusz Pawlak
- Department of Thoracic Surgery, Lower Silesian Oncology Centre, Wroclaw, Poland
| | - Vladimir Bobek
- Department of Laboratory Genetics, Laboratory Diagnostics, Third Faculty of Medicine, Charles University Prague and University Hospital Kralovske Vinohrady, Prague, Czech Republic; Cellpeutics Sp.z o.o., Wroclaw, Poland; Department of Thoracic Surgery, Krajska zdravotni a.s. Hospital Usti nad Labem, Czech Republic; 3rd Department of Surgery, University Hospital FN Motol and 1st Faculty of Medicine, Charles University, Prague, Czech Republic; Department of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland; Department of Thoracic Surgery, Lower Silesian Oncology Centre, Wroclaw, Poland.
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20
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Zhu J, Xu WG, Xiao H, Zhou Y. [Application of a Radiomics Model for Preding Lymph Node Metastasis in Non-small Cell Lung Cancer]. Sichuan Da Xue Xue Bao Yi Xue Ban 2019; 50:373-378. [PMID: 31631606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To establish a radiomic model for predicting lymph node (LN) metastasis in patients with non-small cell lung cancer (NSCLC). METHODS The prediction model was developed using a training cohort comprising 100 patients with clinicopathologically confirmed NSCLC. Data were gathered from January 2014 to December 2015. Radiomic features of NSCLC were obtained from non-contrast and enhancement computed tomography (CT). Lasso-logistic regression models were established for data dimension reduction, feature selection, and radiomics signature building. Consistency coefficient ( ICCs) was used to evaluate the consistency between observer interior and interobserver.The consistency index (C-index)is used to evalutate the prediction of lymph node metastasis by using the radiomics signature, shown with the area under the receiver operating characteristic curve ( AUC).Multivariate logistic regression analyses were performed to develop the prediction model, considering radiomics signature and clinicopathologic risk factors. The radiomics model was validated in a validation cohort comprising 100 consecutive NSCLC patients from January 2016 to December 2017 in terms of its calibration and discrimination. AUC was used to evaluate the predictive effectiveness of the model, and Delong test was used to compare models. Hosmer-Lemeshow good of fit test was used to evaluate the calibration of prediction models.The results were represented by correction curves to compare the consistency between the predicted results of the model and the actual probability of LN metastasis. RESULTS The consistency between observer interior and interobserver was good, with ICCs higher than 0.75.The radiomics signature, including 22 selected features, was associated with LN metastasis. AUC was 0.781 in training cohort and 0.776 in validation cohort. The individualized prediction model identified radiomics signature, neuron specific enolase (CEA), cytokeratin 19 fragment antigen 21-1 (CYFRA21-1), and carbohydrate antigen 125 (CA125) as independent predictors. The model showed good discrimination, with 0.836 AUC in the training cohort, and 0.821 AUC in the validation cohort. The model in both the training and validation cohorts had good calibration,which demonstrated high consistency with the actual LN metastasis. CONCLUSION The radiomics model incorporating radiomics signature and clinical risk factors can be conveniently used to facilitate preoperative individualized prediction of LN metastasis in patients with NSCLC.
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Affiliation(s)
- Jing Zhu
- Department of Respiratory Medicine, Center Hospital of Mianyang, Mianyang 621000, China
| | - Wei-Guo Xu
- Department of Respiratory Medicine, Center Hospital of Mianyang, Mianyang 621000, China
| | - Huan Xiao
- Department of Radiology, Center Hospital of Mianyang, Mianyang 621000, China
| | - Ying Zhou
- Department of Radiology, Center Hospital of Mianyang, Mianyang 621000, China
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21
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Abstract
INTRODUCTION MUC16 is overexpressed in multiple cancers and plays an important role in tumorigenicity and acquired resistance to therapy. Area covered: In this review, we describe the role of MUC16 under normal physiological conditions and during tumorigenesis. First, we provide a summary of research on MUC16 from its discovery as CA125 to present anti-MUC16 therapy trials that are currently in the initial phases of clinical testing. Finally, we discuss the reasons for the limited effectiveness of these therapies and discuss the direction and focus of future research. Expert opinion: Apart from its protective role in normal physiology, MUC16 contributes to disease progression and metastasis in several malignancies. Due to its aberrant overexpression, it is a promising target for diagnosis and therapy. Cleavage and shedding of its extracellular domain is the major barrier for efficient targeting of MUC16-expressing cancers. Concerted efforts should be undertaken to target the noncleaved cell surface retained portion of MUC16. Such efforts should be accompanied by basic research to understand MUC16 cleavage and decipher the functioning of MUC16 cytoplasmic tail. While previous efforts to activate anti-MUC16 immune response using anti-CA125 idiotype antibodies have met with limited success, ideification of neo-antigenic epitopes in MUC16 that correlate with improved survival have raised raised hopes for developing MUC16-targeted immunotherapy.
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Affiliation(s)
- Abhijit Aithal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Sanchita Rauth
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Prakash Kshirsagar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Ashu Shah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Imayavaramban Lakshmanan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Wade M. Junker
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Maneesh Jain
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Moorthy P. Ponnusamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Surinder K. Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, United States of America
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, United States of America
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, United States of America
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22
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Coelho R, Marcos-Silva L, Mendes N, Pereira D, Brito C, Jacob F, Steentoft C, Mandel U, Clausen H, David L, Ricardo S. Mucins and Truncated O-Glycans Unveil Phenotypic Discrepancies between Serous Ovarian Cancer Cell Lines and Primary Tumours. Int J Mol Sci 2018; 19:ijms19072045. [PMID: 30011875 PMCID: PMC6073732 DOI: 10.3390/ijms19072045] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/05/2018] [Accepted: 07/10/2018] [Indexed: 01/14/2023] Open
Abstract
Optimal research results rely on the selection of cellular models capable of recapitulating the characteristics of primary tumours from which they originate. The expression of mucins (MUC16 and MUC1) and truncated O-glycans (Tn, STn and T) represents a characteristic footprint of serous ovarian carcinomas (SOCs). Therefore, selecting ovarian cancer (OVCA) cell lines that reflect this phenotype is crucial to explore the putative biological role of these biomarkers in the SOC setting. Here, we investigated a panel of OVCA cell lines commonly used as SOC models, and tested whether, when cultured in 2D and 3D conditions, these recapitulate the mucin and O-glycan expression profiles of SOCs. We further explored the role of truncating the O-glycosylation capacity in OVCAR3 cells through knockout of the COSMC chaperone, using in vitro and in vivo assays. We found that the majority of OVCA cell lines of serous origin do not share the mucin and truncated O-glycan footprint of SOCs, although 3D cultures showed a higher resemblance. We also found that genetic truncation of the O-glycosylation capacity of OVCAR3 cells did not enhance oncogenic features either in vitro or in vivo. This study underscores the importance of well-characterized cellular models to study specific features of ovarian cancer.
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Affiliation(s)
- Ricardo Coelho
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4099-002 Porto, Portugal.
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), 4099-002 Porto, Portugal.
- Faculty of Medicine, University of Porto, 4099-002 Porto, Portugal.
| | - Lara Marcos-Silva
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4099-002 Porto, Portugal.
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), 4099-002 Porto, Portugal.
- Instituto de Biologia Experimental e Tecnológica (iBET), 2780-901 Oeiras, Portugal.
- Instituto de Tecnologia Química e Biológica (ITQB) António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal.
| | - Nuno Mendes
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4099-002 Porto, Portugal.
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), 4099-002 Porto, Portugal.
| | - Daniela Pereira
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4099-002 Porto, Portugal.
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), 4099-002 Porto, Portugal.
| | - Catarina Brito
- Instituto de Biologia Experimental e Tecnológica (iBET), 2780-901 Oeiras, Portugal.
- Instituto de Tecnologia Química e Biológica (ITQB) António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal.
| | - Francis Jacob
- Glyco-Oncology, Ovarian Cancer Research, Department of Biomedicine, University Hospital Basel and University of Basel, 4031 Basel, Switzerland.
| | - Catharina Steentoft
- Copenhagen Center for Glycomics, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark.
| | - Ulla Mandel
- Copenhagen Center for Glycomics, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark.
| | - Henrik Clausen
- Copenhagen Center for Glycomics, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark.
| | - Leonor David
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4099-002 Porto, Portugal.
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), 4099-002 Porto, Portugal.
- Faculty of Medicine, University of Porto, 4099-002 Porto, Portugal.
| | - Sara Ricardo
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4099-002 Porto, Portugal.
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), 4099-002 Porto, Portugal.
- Faculty of Medicine, University of Porto, 4099-002 Porto, Portugal.
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23
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Cramer DW, Fichorova RN, Terry KL, Yamamoto H, Vitonis AF, Ardanaz E, Aune D, Boeing H, Brändstedt J, Boutron-Ruault MC, Chirlaque MD, Dorronsoro M, Dossus L, Duell EJ, Gram IT, Gunter M, Hansen L, Idahl A, Johnson T, Khaw KT, Krogh V, Kvaskoff M, Mattiello A, Matullo G, Merritt MA, Nodin B, Orfanos P, Onland-Moret NC, Palli D, Peppa E, Quirós JR, Sánchez-Perez MJ, Severi G, Tjønneland A, Travis RC, Trichopoulou A, Tumino R, Weiderpass E, Fortner RT, Kaaks R. Anti-CA15.3 and Anti-CA125 Antibodies and Ovarian Cancer Risk: Results from the EPIC Cohort. Cancer Epidemiol Biomarkers Prev 2018; 27:790-804. [PMID: 29661801 PMCID: PMC6309875 DOI: 10.1158/1055-9965.epi-17-0744] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/26/2017] [Accepted: 04/06/2018] [Indexed: 11/16/2022] Open
Abstract
Background: Neoplastic and non-neoplastic events may raise levels of mucins, CA15.3, and CA125, and generate antibodies against them, but their impact on epithelial ovarian cancer (EOC) risk has not been fully defined.Methods: CA15.3, CA125, and IgG1 antibodies against them were measured in 806 women who developed EOC and 1,927 matched controls from the European Prospective Investigation of Nutrition and Cancer. Associations between epidemiologic factors and anti-mucin antibodies were evaluated using generalized linear models; EOC risks associated with anti-mucin antibodies, by themselves or in combination with respective antigens, were evaluated using conditional logistic regression.Results: In controls, lower antibodies against both mucins were associated with current smoking; and, in postmenopausal women, higher levels with longer oral contraceptive use and later-age-at and shorter-interval-since last birth. Lower anti-CA15.3 antibodies were associated with higher body mass and, in premenopausal women, more ovulatory cycles. Higher anti-CA15.3 and anti-CA125 antibodies were associated with higher risk for mucinous EOC occurring ≥ 3 years from enrollment. Long-term risk for serous EOC was reduced in women with low CA125 and high anti-CA125 antibodies relative to women with low concentrations of both.Conclusions: We found general support for the hypothesis that anti-mucin antibody levels correlate with risk factors for EOC. Antibodies alone or in combinations with their antigen may predict longer term risk of specific EOC types.Impact: Anti-CA125 and anti-CA15.3 antibodies alone or in perspective of antigens may be informative in the pathogenesis of EOC subtypes, but less useful for informing risk for all EOC. Cancer Epidemiol Biomarkers Prev; 27(7); 790-804. ©2018 AACR.
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Affiliation(s)
- Daniel W Cramer
- Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, Massachusetts.
- Harvard Medical School, Boston, Massachusetts
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts
| | - Raina N Fichorova
- Harvard Medical School, Boston, Massachusetts
- Laboratory of Genital Tract Biology, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Kathryn L Terry
- Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts
| | - Hidemi Yamamoto
- Laboratory of Genital Tract Biology, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Allison F Vitonis
- Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Eva Ardanaz
- Navarra Public Health Institute, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
- CIBER Epidemiology and Public Health CIBERESP, Madrid, Spain
| | - Dagfinn Aune
- School of Public Health, Imperial College London, London, United Kingdom
| | - Heiner Boeing
- German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Jenny Brändstedt
- Department of Clinical Sciences, Lund University, Sweden
- Division of Surgery, Skåne University Hospital, Lund, Sweden
| | | | - Maria-Dolores Chirlaque
- Department of Epidemiology, Regional Health Council, IMIB-Arrixaca, Murcia, Spain
- CIBER in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Department of Health and Social Sciences, Universidad de Murcia, Murcia, Spain
| | - Miren Dorronsoro
- Public Health Direction and Biodonostia Research Institute and Ciberesp, Basque Regional Health Department, San Sebastian, Spain
| | - Laure Dossus
- International Agency for Research on Cancer, Lyon, France
| | - Eric J Duell
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Bellvitge Biomedical Research Institute (IDIBELL), Catalan Institute of Oncology (ICO), Barcelona, Spain
| | - Inger T Gram
- Faculty of Health Sciences, Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Marc Gunter
- International Agency for Research on Cancer, Lyon, France
| | - Louise Hansen
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Annika Idahl
- Department of Clinical Sciences, Obstetrics and Gynecology, Umeå University, Umeå, Sweden
| | - Theron Johnson
- Division of Cancer Epidemiology, German Cancer Research Center, (DKFZ) Heidelberg, Germany
| | - Kay-Tee Khaw
- School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Vittorio Krogh
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Marina Kvaskoff
- CESP, INSERM U1018, Univ. Paris-Sud, UVSQ, Université Paris-Saclay, Villejuif, France
- Gustave Roussy, Villejuif, France
| | - Amalia Mattiello
- Diparmento di Medicina Clinica e Chirugria Federico II University, Naples, Italy
| | - Giuseppe Matullo
- Department of Medical Sciences, University of Torino, Italian Institute for Genomic Medicine -IIGM (FKA HuGeF), Torino, Italy
| | - Melissa A Merritt
- School of Public Health, Imperial College London, London, United Kingdom
| | - Björn Nodin
- Department of Clinical Sciences Lund, Oncology and Pathology, Lund University, Lund, Sweden
| | - Philippos Orfanos
- Hellenic Health Foundation, Athens, Greece
- WHO Collaborating Center for Nutrition and Health, Unit of Nutritional Epidemiology and Nutrition in Public Health, Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - N Charlotte Onland-Moret
- Julis Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Domenico Palli
- Cancer Risk Factors and Life-Style Epidemiology Unit, Cancer Research and Prevention Institute - ISPO, Florence, Italy
| | | | | | - Maria-Jose Sánchez-Perez
- Escuela Andaluza de Salud Pública. Instituto de Investigación Biosanitaria ibs.Granada, Hospitales Universitarios de Granada/Universidad de Granada, Granada, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Spain
| | - Gianluca Severi
- CESP, INSERM U1018, Univ. Paris-Sud, UVSQ, Université Paris-Saclay, Villejuif, France
- Gustave Roussy, Villejuif, France
| | - Anne Tjønneland
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Ruth C Travis
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Antonia Trichopoulou
- Hellenic Health Foundation, Athens, Greece
- WHO Collaborating Center for Nutrition and Health, Unit of Nutritional Epidemiology and Nutrition in Public Health, Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, "Civic - M.P. Arezzo" Hospital, ASP Ragusa, Italy
| | - Elisabete Weiderpass
- Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
- Department of Research, Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Genetic Epidemiology Group, Folkhälsan Research Center, Helsinki, Finland
| | - Renée T Fortner
- Division of Cancer Epidemiology, German Cancer Research Center, (DKFZ) Heidelberg, Germany
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center, (DKFZ) Heidelberg, Germany.
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24
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Sirois AR, Deny DA, Baierl SR, George KS, Moore SJ. Fn3 proteins engineered to recognize tumor biomarker mesothelin internalize upon binding. PLoS One 2018; 13:e0197029. [PMID: 29738555 PMCID: PMC5940182 DOI: 10.1371/journal.pone.0197029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 03/20/2018] [Indexed: 11/19/2022] Open
Abstract
Mesothelin is a cell surface protein that is overexpressed in numerous cancers, including breast, ovarian, lung, liver, and pancreatic tumors. Aberrant expression of mesothelin has been shown to promote tumor progression and metastasis through interaction with established tumor biomarker CA125. Therefore, molecules that specifically bind to mesothelin have potential therapeutic and diagnostic applications. However, no mesothelin-targeting molecules are currently approved for routine clinical use. While antibodies that target mesothelin are in development, some clinical applications may require a targeting molecule with an alternative protein fold. For example, non-antibody proteins are more suitable for molecular imaging and may facilitate diverse chemical conjugation strategies to create drug delivery complexes. In this work, we engineered variants of the fibronectin type III domain (Fn3) non-antibody protein scaffold to bind to mesothelin with high affinity, using directed evolution and yeast surface display. Lead engineered Fn3 variants were solubly produced and purified from bacterial culture at high yield. Upon specific binding to mesothelin on human cancer cell lines, the engineered Fn3 proteins internalized and co-localized to early endosomes. To our knowledge, this is the first report of non-antibody proteins engineered to bind mesothelin. The results validate that non-antibody proteins can be engineered to bind to tumor biomarker mesothelin, and encourage the continued development of engineered variants for applications such as targeted diagnostics and therapeutics.
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Affiliation(s)
- Allison R. Sirois
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Amherst, Massachusetts, United States of America
- Picker Engineering Program, Smith College, Northampton, Massachusetts, United States of America
| | - Daniela A. Deny
- Department of Biochemistry, Smith College, Northampton, Massachusetts, United States of America
| | - Samantha R. Baierl
- Picker Engineering Program, Smith College, Northampton, Massachusetts, United States of America
| | - Katia S. George
- Department of Biochemistry, Smith College, Northampton, Massachusetts, United States of America
| | - Sarah J. Moore
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Amherst, Massachusetts, United States of America
- Picker Engineering Program, Smith College, Northampton, Massachusetts, United States of America
- Department of Biological Sciences, Smith College, Northampton, Massachusetts, United States of America
- * E-mail:
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25
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Abstract
In 1997 CA 125 celebrated its 15th anniversary. Since the discovery of OC 125, an antibody that recognizes CA 125, by Bob Bast and his colleagues, considerable progress has been made toward the development of more sensitive and more precise assay systems. However, a great deal of mystery still remains about the CA 125 molecule and further enlightenment will probably not come until the gene for CA 125 is cloned and the complete open reading frame for the peptide core identified. In the meantime, we have learned some structural features of the CA 125 molecule as well as a little about its regulation and the requirements for its secretion or release from epithelial derived cells in cultures. The CA 125 molecule is almost certainly a glycoprotein with a predominance of O-linkages. It is heterogeneous with regard to both size and charge, most likely due to continuous deglycosylation of side chains during its life-span in bodily fluids. It exists as a very large complex (perhaps as much as 4 million daltons) under natural conditions. The core CA 125 subunit is in excess of 200,000 daltons and it retains the capacity to bind both OC 125 class antibodies and M 11 class antibodies. As a denatured purified subspecies the CA 125 molecule appears to autoproteolyse presumably due to an endogenous protease activity inherent to the molecule. Release or secretion of CA 125 appears directly linked to the epithelial growth factor receptor signal transduction pathway. Prior to its release from cultured cells, CA 125 is phosphorylated (at either/both serine and threonine) and dephosphorylated when released. To stimulate discussion on the regulation of CA 125 synthesis, its secretion and its structural configuration, we have presented a model of a theoretical CA 125 molecule. Perhaps it will provide a focus of attention until the CA 125 gene is cloned and the real molecule is described.
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Affiliation(s)
- T J O'Brien
- Department of Obstetrics and Gynecology, Kyoto University, Japan
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26
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Abstract
The antigenic determinant CA 125 is a high molecular weight glycoprotein which is elevated in more than 80% of patients with epithelial ovarian cancer. Despite its good performance as a human tumor marker, only little is known about its physiological function. According to recent publications, CA 125 production and release appear to be related to cellular growth. In order to investigate this putative relationship more closely, we analyzed the pattern of CA 125 production and release by ovarian cancer cells during exponential cell growth, during cell cycle arrest by colchicine and during inhibition of cellular protein synthesis by cycloheximide. The results were correlated with the cell cycle distribution. According to our results, the main determinant of CA 125 release into the culture supernatant is the total cell count. Although cell cycle arrest in the G2 + M phase by means of colchicine treatment resulted in the death of most cells, which was reflected by an increased release of CA 125, no differences in the intracellular production rate between colchicine treated and untreated cells were seen. In contrast, treatment of cells with cycloheximide not only resulted in decreasing cell numbers but also in a complete inhibition of CA 125 production by surviving cells.
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Affiliation(s)
- E P Beck
- Staedtische Frauenklinik Stuttgart, University of Erlangen-Nuremberg-Germany
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Fan K, Yang C, Fan Z, Huang Q, Zhang Y, Cheng H, Jin K, Lu Y, Wang Z, Luo G, Yu X, Liu C. MUC16 C terminal-induced secretion of tumor-derived IL-6 contributes to tumor-associated Treg enrichment in pancreatic cancer. Cancer Lett 2018; 418:167-175. [PMID: 29337110 DOI: 10.1016/j.canlet.2018.01.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/28/2017] [Accepted: 01/08/2018] [Indexed: 02/07/2023]
Abstract
Pancreatic cancer is the most lethal tumor. CA125 (gene symbol MUC16) is an important serum marker for pancreatic cancer diagnosis and treatment. High serum CA125 is related to metabolic tumor burden and poor prognosis. The circulating Treg subset is another independent prognostic factor for pancreatic cancer. Our unpublished data indicated that the circulating Treg proportion might be related to the serum CA125 level. However, the potential relationship and underlying mechanism of MUC16 and Treg in pancreatic cancer tissues remain unclear. In this study, we found that pancreatic cancer tissues were positive for both MUC16 C terminal (MUC16c) and Foxp3 expression and that their expression was correlated. MUC16c released into the cytoplasm via EGF induction significantly increased IL-6 expression and secretion. The PI3K/AKT pathway may participate in the regulation of IL-6 expression and secretion. By treating CD4+ T cells with IL-6 or co-culturing the cells with pancreatic cancer cells, tumor-derived IL-6 was identified to promote Foxp3 expression and Treg differentiation, which was significantly inhibited by the JAK2 inhibitor AG-490. In sum, our study demonstrated that the relationship between the MUC16c level and Foxp3 expression in the local tumor environment was consistent with that of the serum CA125 level and circulating Treg proportion in the systemic environment. MUC16c promoted Foxp3 expression and tumor-associated Treg enrichment in tumor tissues through tumor-secreted IL-6 activation of the JAK2/STAT3 pathway. These findings may provide deeper insight into potential pancreatic cancer therapy approaches.
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Affiliation(s)
- Kun Fan
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - Chao Yang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - Zhiyao Fan
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - Qiuyi Huang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - Yiyin Zhang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - He Cheng
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - Kaizhou Jin
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - Yu Lu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - Zhengshi Wang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - Guopei Luo
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China
| | - Xianjun Yu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China.
| | - Chen Liu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, PR China; Department of Oncology, Shanghai Medical College, Fudan University, PR China; Shanghai Pancreatic Cancer Institute, Shanghai, 200032, PR China; Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, PR China.
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28
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Balachandran VP, Łuksza M, Zhao JN, Makarov V, Moral JA, Remark R, Herbst B, Askan G, Bhanot U, Senbabaoglu Y, Wells DK, Cary CIO, Grbovic-Huezo O, Attiyeh M, Medina B, Zhang J, Loo J, Saglimbeni J, Abu-Akeel M, Zappasodi R, Riaz N, Smoragiewicz M, Kelley ZL, Basturk O, Gönen M, Levine AJ, Allen PJ, Fearon DT, Merad M, Gnjatic S, Iacobuzio-Donahue CA, Wolchok JD, DeMatteo RP, Chan TA, Greenbaum BD, Merghoub T, Leach SD. Identification of unique neoantigen qualities in long-term survivors of pancreatic cancer. Nature 2017; 551:512-516. [PMID: 29132146 PMCID: PMC6145146 DOI: 10.1038/nature24462] [Citation(s) in RCA: 750] [Impact Index Per Article: 107.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 10/02/2017] [Indexed: 02/07/2023]
Abstract
Pancreatic ductal adenocarcinoma is a lethal cancer with fewer than 7% of patients surviving past 5 years. T-cell immunity has been linked to the exceptional outcome of the few long-term survivors, yet the relevant antigens remain unknown. Here we use genetic, immunohistochemical and transcriptional immunoprofiling, computational biophysics, and functional assays to identify T-cell antigens in long-term survivors of pancreatic cancer. Using whole-exome sequencing and in silico neoantigen prediction, we found that tumours with both the highest neoantigen number and the most abundant CD8+ T-cell infiltrates, but neither alone, stratified patients with the longest survival. Investigating the specific neoantigen qualities promoting T-cell activation in long-term survivors, we discovered that these individuals were enriched in neoantigen qualities defined by a fitness model, and neoantigens in the tumour antigen MUC16 (also known as CA125). A neoantigen quality fitness model conferring greater immunogenicity to neoantigens with differential presentation and homology to infectious disease-derived peptides identified long-term survivors in two independent datasets, whereas a neoantigen quantity model ascribing greater immunogenicity to increasing neoantigen number alone did not. We detected intratumoural and lasting circulating T-cell reactivity to both high-quality and MUC16 neoantigens in long-term survivors of pancreatic cancer, including clones with specificity to both high-quality neoantigens and predicted cross-reactive microbial epitopes, consistent with neoantigen molecular mimicry. Notably, we observed selective loss of high-quality and MUC16 neoantigenic clones on metastatic progression, suggesting neoantigen immunoediting. Our results identify neoantigens with unique qualities as T-cell targets in pancreatic ductal adenocarcinoma. More broadly, we identify neoantigen quality as a biomarker for immunogenic tumours that may guide the application of immunotherapies.
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Affiliation(s)
- Vinod P. Balachandran
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Marta Łuksza
- The Simons Center for Systems Biology, Institute for Advanced Study, Princeton, NJ, USA
| | - Julia N. Zhao
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Vladimir Makarov
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunogenomics and Precision Oncology Platform, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - John Alec Moral
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Romain Remark
- Tisch Cancer Institute, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Brian Herbst
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gokce Askan
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Pathology Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Umesh Bhanot
- Pathology Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yasin Senbabaoglu
- Ludwig Center for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Daniel K. Wells
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | | | - Olivera Grbovic-Huezo
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Marc Attiyeh
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Benjamin Medina
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jennifer Zhang
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jennifer Loo
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joseph Saglimbeni
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mohsen Abu-Akeel
- Ludwig Center for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Roberta Zappasodi
- Ludwig Center for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nadeem Riaz
- Immunogenomics and Precision Oncology Platform, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Radiation Oncology Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Martin Smoragiewicz
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Cambridge, United Kingdom
| | - Z. Larkin Kelley
- Cold Spring Harbor Laboratory, New York, NY, USA. Department of Microbiology and Immunology, Weill Cornell Medical School, New York, NY, USA
| | - Olca Basturk
- Pathology Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Mithat Gönen
- Biostatistics Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Arnold J. Levine
- The Simons Center for Systems Biology, Institute for Advanced Study, Princeton, NJ, USA
| | - Peter J. Allen
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Douglas T. Fearon
- Cold Spring Harbor Laboratory, New York, NY, USA. Department of Microbiology and Immunology, Weill Cornell Medical School, New York, NY, USA
| | - Miriam Merad
- Tisch Cancer Institute, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sacha Gnjatic
- Tisch Cancer Institute, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Christine A. Iacobuzio-Donahue
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Pathology Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jedd D. Wolchok
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Ludwig Center for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Melanoma and Immunotherapeutics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Weill Cornell Medical College, Cornell University, New York, NY, USA
- Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ronald P. DeMatteo
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Timothy A. Chan
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunogenomics and Precision Oncology Platform, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Radiation Oncology Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Benjamin D. Greenbaum
- Tisch Cancer Institute, Departments of Medicine, Hematology and Medical Oncology, Oncological Sciences, and Pathology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Taha Merghoub
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Ludwig Center for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Steven D. Leach
- Departments of Surgery Memorial Sloan Kettering Cancer Center, New York, NY, USA
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Koyama Y, Wang P, Liang S, Iwaisako K, Liu X, Xu J, Zhang M, Sun M, Cong M, Karin D, Taura K, Benner C, Heinz S, Bera T, Brenner DA, Kisseleva T. Mesothelin/mucin 16 signaling in activated portal fibroblasts regulates cholestatic liver fibrosis. J Clin Invest 2017; 127:1254-1270. [PMID: 28287406 DOI: 10.1172/jci88845] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 01/11/2017] [Indexed: 01/18/2023] Open
Abstract
Cholestatic liver fibrosis is caused by obstruction of the biliary tract and is associated with early activation of portal fibroblasts (PFs) that express Thy-1, fibulin 2, and the recently identified marker mesothelin (MSLN). Here, we have demonstrated that activated PFs (aPFs) and myofibroblasts play a critical role in the pathogenesis of liver fibrosis induced by bile duct ligation (BDL). Conditional ablation of MSLN+ aPFs in BDL-injured mice attenuated liver fibrosis by approximately 50%. Similar results were observed in MSLN-deficient mice (Msln-/- mice) or mice deficient in the MSLN ligand mucin 16 (Muc16-/- mice). In vitro analysis revealed that MSLN regulates TGF-β1-inducible activation of WT PFs by disrupting the formation of an inhibitory Thy-1-TGFβRI complex. MSLN also facilitated the FGF-mediated proliferation of WT aPFs. Therapeutic administration of anti-MSLN-blocking Abs attenuated BDL-induced fibrosis in WT mice. Liver specimens from patients with cholestatic liver fibrosis had increased numbers of MSLN+ aPFs/myofibroblasts, suggesting that MSLN may be a potential target for antifibrotic therapy.
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Uchino Y, Woodward AM, Argüeso P. Differential effect of rebamipide on transmembrane mucin biosynthesis in stratified ocular surface epithelial cells. Exp Eye Res 2016; 153:1-7. [PMID: 27725198 DOI: 10.1016/j.exer.2016.10.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 09/29/2016] [Accepted: 10/06/2016] [Indexed: 10/20/2022]
Abstract
Mucins are a group of highly glycosylated glycoproteins responsible for the protection of wet-surfaced epithelia. Recent data indicate that transmembrane mucins differ in their contribution to the protective function of the ocular surface, with MUC16 being the most effective barrier on the apical surface glycocalyx. Here, we investigated the role of the mucoprotective drug rebamipide in the regulation of transmembrane mucin biosynthesis using stratified cultures of human corneal and conjunctival epithelial cells. We find that the addition of rebamipide to corneal, but not conjunctival, epithelial cells increased MUC16 protein biosynthesis. Rebamipide did not affect the levels of MUC1, 4 and 20 compared to control. In these experiments, rebamipide had no effect on the expression levels of Notch intracellular domains, suggesting that the rebamipide-induced increase in MUC16 biosynthesis in differentiated corneal cultures is not regulated by Notch signaling. Overall these findings indicate that rebamipide induces the differential upregulation of MUC16 in stratified cultures of human corneal epithelial cells, which may have implications to the proper restoration of barrier function in ocular surface disease.
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Affiliation(s)
- Yuichi Uchino
- Schepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA
| | - Ashley M Woodward
- Schepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA
| | - Pablo Argüeso
- Schepens Eye Research Institute and Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA.
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31
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Silva VL, Ferreira D, Nobrega FL, Martins IM, Kluskens LD, Rodrigues LR. Selection of Novel Peptides Homing the 4T1 CELL Line: Exploring Alternative Targets for Triple Negative Breast Cancer. PLoS One 2016; 11:e0161290. [PMID: 27548261 PMCID: PMC4993384 DOI: 10.1371/journal.pone.0161290] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 06/27/2016] [Indexed: 11/30/2022] Open
Abstract
The use of bacteriophages to select novel ligands has been widely explored for cancer therapy. Their application is most warranted in cancer subtypes lacking knowledge on how to target the cancer cells in question, such as the triple negative breast cancer, eventually leading to the development of alternative nanomedicines for cancer therapeutics. Therefore, the following study aimed to select and characterize novel peptides for a triple negative breast cancer murine mammary carcinoma cell line– 4T1. Using phage display, 7 and 12 amino acid random peptide libraries were screened against the 4T1 cell line. A total of four rounds, plus a counter-selection round using the 3T3 murine fibroblast cell line, was performed. The enriched selective peptides were characterized and their binding capacity towards 4T1 tissue samples was confirmed by immunofluorescence and flow cytometry analysis. The selected peptides (4T1pep1 –CPTASNTSC and 4T1pep2—EVQSSKFPAHVS) were enriched over few rounds of selection and exhibited specific binding to the 4T1 cell line. Interestingly, affinity to the human MDA-MB-231 cell line was also observed for both peptides, promoting the translational application of these novel ligands between species. Additionally, bioinformatics analysis suggested that both peptides target human Mucin-16. This protein has been implicated in different types of cancer, as it is involved in many important cellular functions. This study strongly supports the need of finding alternative targeting systems for TNBC and the peptides herein selected exhibit promising future application as novel homing peptides for breast cancer therapy.
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Affiliation(s)
- Vera L. Silva
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Debora Ferreira
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Franklin L. Nobrega
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Ivone M. Martins
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Leon D. Kluskens
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Ligia R. Rodrigues
- CEB—Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga, Portugal
- * E-mail:
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Yang B, Shan B, Xue X, Wang H, Shan W, Ning C, Zhou Q, Chen X, Luo X. Predicting Lymph Node Metastasis in Endometrial Cancer Using Serum CA125 Combined with Immunohistochemical Markers PR and Ki67, and a Comparison with Other Prediction Models. PLoS One 2016; 11:e0155145. [PMID: 27163153 PMCID: PMC4862644 DOI: 10.1371/journal.pone.0155145] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 04/25/2016] [Indexed: 01/02/2023] Open
Abstract
We aimed to evaluate the value of immunohistochemical markers and serum CA125 in predicting the risk of lymph node metastasis (LNM) in women with endometrial cancer and to identify a low-risk group of LNM. The medical records of 370 patients with endometrial endometrioid adenocarcinoma who underwent surgical staging in the Obstetrics & Gynecology Hospital of Fudan University were collected and retrospectively reviewed. Immunohistochemical markers were screened. A model using serum cancer antigen 125 (CA125) level, the immunohistochemical markers progesterone receptor (PR) and Ki67 was created for prediction of LNM. A predicted probability of 4% among these patients was defined as low risk. The developed model was externally validated in 200 patients from Shanghai Cancer Center. The efficiency of the model was compared with three other reported prediction models. Patients with serum CA125 < 30.0 IU/mL, either or both of positive PR staining > 50% and Ki67 < 40% in cancer lesion were defined as low risk for LNM. The model showed good discrimination with an area under the receiver operating characteristic curve of 0.82. The model classified 61.9% (229/370) of patients as being at low risk for LNM. Among these 229 patients, 6 patients (2.6%) had LNM and the negative predictive value was 97.4% (223/229). The sensitivity and specificity of the model were 84.6% and 67.4% respectively. In the validation cohort, the model classified 59.5% (119/200) of patients as low-risk, 3 out of these 119 patients (2.5%) has LNM. Our model showed a predictive power similar to those of two previously reported prediction models. The prediction model using serum CA125 and the immunohistochemical markers PR and Ki67 is useful to predict patients with a low risk of LNM and has the potential to provide valuable guidance to clinicians in the treatment of patients with endometrioid endometrial cancer.
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Affiliation(s)
- Bingyi Yang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Boer Shan
- Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Xiaohong Xue
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Huaying Wang
- Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Weiwei Shan
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Chengcheng Ning
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Qiongjie Zhou
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
| | - Xiaojun Chen
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
- * E-mail: (XC); (XL)
| | - Xuezhen Luo
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
- * E-mail: (XC); (XL)
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Li J, Lin J, Luo Y, Kuang M, Liu Y. Multivariate Analysis of Prognostic Biomarkers in Surgically Treated Endometrial Cancer. PLoS One 2015; 10:e0130640. [PMID: 26107255 PMCID: PMC4479375 DOI: 10.1371/journal.pone.0130640] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 05/21/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The aim of this study was to identify biomarkers with prognostic value in the setting of surgically treated endometrial cancer. METHODS Medical data for 282 patients with surgically treated endometrial cancer were reviewed retrospectively. Preoperative concentrations of six serum biomarkers (CA125, CA15-3, C-reactive protein [CRP], D-dimer [D-D], platelet-to-lymphocyte ratio [PLR], and neutrophil-to-lymphocyte ratio [NLR]) were analysed to determine potential associations with clinicopathologic characteristics and to assess prognostic values separately via Kaplan-Meier method and multivariate Cox regression. RESULTS In univariate analyses, the 5-year overall survival (OS) rate was 86.5% for a maximum follow-up period of 75 months. High concentrations of CA125, CA15-3, CRP, D-D, PLR, and NLR each proved significantly predictive of poor survival (log-rank test, P<0.01). CRP and D-D were identified as independent prognosticators, using a Cox regression model. Study patients were then stratified (based on combined independent risk factors) into three tiers (P<0.001), marked by 5-year OS rates of 92.1%, 78.4%, and 33.3%. CONCLUSIONS All serum biomarkers assessed (CA125, CA15-3, CRP, D-D, PLR, and NLR) proved to be valid prognostic indices of surgically treated endometrial cancer. A novel prognostic grouping system, incorporating independent risk factors (CRP and D-D Concentrations), may have merit in assessing these patients preoperatively, providing a biologic basis for improved clinical staging.
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Affiliation(s)
- Jianpei Li
- Department of Clinical laboratory, State Key Laboratory of Oncology in South China/Cancer Center of Sun Yat-sen University, Guangzhou, Guangdong province, PR China
| | - Jianhua Lin
- Department of Clinical laboratory, State Key Laboratory of Oncology in South China/Cancer Center of Sun Yat-sen University, Guangzhou, Guangdong province, PR China
- * E-mail:
| | - Yaoling Luo
- Department of Clinical laboratory, State Key Laboratory of Oncology in South China/Cancer Center of Sun Yat-sen University, Guangzhou, Guangdong province, PR China
| | - Miaohuan Kuang
- Department of Clinical laboratory, State Key Laboratory of Oncology in South China/Cancer Center of Sun Yat-sen University, Guangzhou, Guangdong province, PR China
| | - Yijun Liu
- Department of Clinical laboratory, State Key Laboratory of Oncology in South China/Cancer Center of Sun Yat-sen University, Guangzhou, Guangdong province, PR China
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Rao TD, Tian H, Ma X, Yan X, Thapi S, Schultz N, Rosales N, Monette S, Wang A, Hyman DM, Levine DA, Solit D, Spriggs DR. Expression of the Carboxy-Terminal Portion of MUC16/CA125 Induces Transformation and Tumor Invasion. PLoS One 2015; 10:e0126633. [PMID: 25965947 PMCID: PMC4429113 DOI: 10.1371/journal.pone.0126633] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 04/05/2015] [Indexed: 12/13/2022] Open
Abstract
The CA125 antigen is found in the serum of many patients with serous ovarian cancer and has been widely used as a disease marker. CA125 has been shown to be an independent factor for clinical outcome in this disease. In The Cancer Genome Atlas ovarian cancer project, MUC16 expression levels are frequently increased, and the highest levels of MUC16 expression are linked to a significantly worse survival. To examine the biologic effect of the proximal portion of MUC16/CA125, NIH/3T3 (3T3) fibroblast cell lines were stably transfected with the carboxy elements of MUC16. As few as 114 amino acids from the carboxy-terminal portion of MUC16 were sufficient to increase soft agar growth, promote matrigel invasion, and increase the rate of tumor growth in athymic nude mice. Transformation with carboxy elements of MUC16 was associated with activation of the AKT and ERK pathways. MUC16 transformation was associated with up-regulation of a number of metastases and invasion gene transcripts, including IL-1β, MMP2, and MMP9. All observed oncogenic changes were exclusively dependent on the extracellular “ectodomain” of MUC16. The biologic impact of MUC16 was also explored through the creation of a transgenic mouse model expressing 354 amino acids of the carboxy-terminal portion of MUC16 (MUC16c354). Under a CMV, early enhancer plus chicken β actin promoter (CAG) MUC16c354 was well expressed in many organs, including the brain, colon, heart, kidney, liver, lung, ovary, and spleen. MUC16c354 transgenic animals appear to be viable, fertile, and have a normal lifespan. However, when crossed with p53-deficient mice, the MUC16c354:p53+/- progeny displayed a higher frequency of spontaneous tumor development compared to p53+/- mice alone. We conclude that the carboxy-terminal portion of the MUC16/CA125 protein is oncogenic in NIH/3T3 cells, increases invasive tumor properties, activates the AKT and ERK pathways, and contributes to the biologic properties of ovarian cancer.
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Affiliation(s)
- Thapi D. Rao
- Department of Medicine, Memorial Sloan Kettering Cancer Center; and Department of Medicine, Weill Cornell Medical College, New York, NY, United States of America
| | - Huasong Tian
- Department of Medicine, Memorial Sloan Kettering Cancer Center; and Department of Medicine, Weill Cornell Medical College, New York, NY, United States of America
| | - Xun Ma
- Department of Medicine, Memorial Sloan Kettering Cancer Center; and Department of Medicine, Weill Cornell Medical College, New York, NY, United States of America
| | - Xiujun Yan
- Department of Medicine, Memorial Sloan Kettering Cancer Center; and Department of Medicine, Weill Cornell Medical College, New York, NY, United States of America
| | - Sahityasri Thapi
- Department of Medicine, Memorial Sloan Kettering Cancer Center; and Department of Medicine, Weill Cornell Medical College, New York, NY, United States of America
| | - Nikolaus Schultz
- Computational Biology Center, Memorial Sloan Kettering Cancer Center, New York, NY, United States of America
| | - Nestor Rosales
- Department of Medicine, Memorial Sloan Kettering Cancer Center; and Department of Medicine, Weill Cornell Medical College, New York, NY, United States of America
| | - Sebastien Monette
- Tri-Institutional Laboratory of Comparative Pathology, Memorial Sloan Kettering Cancer Center, The Rockefeller University, Weill Cornell Medical College, New York, NY, United States of America
| | - Amy Wang
- Department of Medicine, Memorial Sloan Kettering Cancer Center; and Department of Medicine, Weill Cornell Medical College, New York, NY, United States of America
| | - David M. Hyman
- Department of Medicine, Memorial Sloan Kettering Cancer Center; Weill Cornell Medical College, New York, NY, United States of America
| | - Douglas A. Levine
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center; and Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, United States of America
| | - David Solit
- Department of Medicine, Memorial Sloan Kettering Cancer Center; and Department of Medicine, Weill Cornell Medical College, New York, NY, United States of America
| | - David R. Spriggs
- Department of Medicine, Memorial Sloan Kettering Cancer Center; and Department of Medicine, Weill Cornell Medical College, New York, NY, United States of America
- * E-mail:
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Abstract
The sparse cells that are shed from tumors into peripheral circulation are an increasingly promising resource for noninvasive monitoring of cancer progression, early diagnosis of disease, and serve as a tool for improving our understanding of cancer metastasis. However, the extremely sparse concentration of circulating tumor cells (CTCs) in blood (~1-100 CTC in 7.5 mL of blood) as well as their heterogeneous biomarker expression has limited their detection using conventional laboratory techniques. To overcome these challenges, we have developed a microfluidic chip-based micro-Hall detector (μHD), which can directly measure single, immunomagnetically tagged cells in whole blood. The μHD can detect individual cells even in the presence of vast numbers of blood cells and unbound reactants, and does not require any washing or purification steps. Furthermore, this cost-effective, single-cell analytical technique is well suited for miniaturization into a mobile platform for low-cost point-of-care use. In this chapter, we describe the methodology used to design, fabricate, and apply these chips to cancer diagnostics.
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Affiliation(s)
- David Issadore
- University of Pennsylvania, 210 South 33rd Street, Suite 240 Skirkanich Hall, Philadelphia, PA, 19104-6321, USA,
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Bruney L, Conley KC, Moss NM, Liu Y, Stack MS. Membrane-type I matrix metalloproteinase-dependent ectodomain shedding of mucin16/ CA-125 on ovarian cancer cells modulates adhesion and invasion of peritoneal mesothelium. Biol Chem 2014; 395:1221-31. [PMID: 25205731 PMCID: PMC5568695 DOI: 10.1515/hsz-2014-0155] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 06/02/2014] [Indexed: 12/11/2022]
Abstract
Mucin16 [MUC16/cancer antigen 125 (CA-125)], a high-molecular-weight glycoprotein expressed on the ovarian tumor cell surface, potentiates metastasis via selective binding to mesothelin on peritoneal mesothelial cells. Shed MUC16/CA-125 is detectable in sera from ovarian cancer patients. We investigated the potential role of membrane type 1 matrix metalloproteinase (MT1-MMP, MMP-14), a transmembrane collagenase highly expressed in ovarian cancer cells, in MUC16/CA-125 ectodomain shedding. An inverse correlation between MT1-MMP and MUC16 immunoreactivity was observed in human ovarian tumors and cells. Further, when MUC16-expressing OVCA433 cells were engineered to overexpress MT1-MMP, surface expression of MUC16/CA-125 was lost, whereas cells expressing the inactive E240A mutant retained surface MUC16/CA-125. As a functional consequence, decreased adhesion of cells expressing catalytically active MT1-MMP to three-dimensional meso-mimetic cultures and intact ex vivo peritoneal tissue explants was observed. Nevertheless, meso-mimetic invasion is enhanced in MT1-MMP-expressing cells. Together, these data support a model wherein acquisition of catalytically active MT1-MMP expression in ovarian cancer cells induces MUC16/CA-125 ectodomain shedding, reducing adhesion to meso-mimetic cultures and to intact peritoneal explants. However, proteolytic clearing of MUC16/CA-125, catalyzed by MT1-MMP, may then expose integrins for high-affinity cell binding to peritoneal tissues, thereby anchoring metastatic lesions for subsequent proliferation within the collagen-rich sub-mesothelial matrix.
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Affiliation(s)
- Lana Bruney
- Department of Medical Pharmacology & Physiology, University of Missouri, Columbia, MO, 65212, USA
- Department of Chemistry & Biochemistry and Harper Cancer Research Institute, University of Notre Dame, South Bend, IN 46617, USA
| | - Kaitlynn C. Conley
- Department of Chemistry & Biochemistry and Harper Cancer Research Institute, University of Notre Dame, South Bend, IN 46617, USA
| | | | - Yueying Liu
- Department of Chemistry & Biochemistry and Harper Cancer Research Institute, University of Notre Dame, South Bend, IN 46617, USA
| | - M. Sharon Stack
- Department of Chemistry & Biochemistry and Harper Cancer Research Institute, University of Notre Dame, South Bend, IN 46617, USA
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Felder M, Kapur A, Gonzalez-Bosquet J, Horibata S, Heintz J, Albrecht R, Fass L, Kaur J, Hu K, Shojaei H, Whelan RJ, Patankar MS. MUC16 (CA125): tumor biomarker to cancer therapy, a work in progress. Mol Cancer 2014; 13:129. [PMID: 24886523 PMCID: PMC4046138 DOI: 10.1186/1476-4598-13-129] [Citation(s) in RCA: 312] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 05/13/2014] [Indexed: 12/21/2022] Open
Abstract
Over three decades have passed since the first report on the expression of CA125 by ovarian tumors. Since that time our understanding of ovarian cancer biology has changed significantly to the point that these tumors are now classified based on molecular phenotype and not purely on histological attributes. However, CA125 continues to be, with the recent exception of HE4, the only clinically reliable diagnostic marker for ovarian cancer. Many large-scale clinical trials have been conducted or are underway to determine potential use of serum CA125 levels as a screening modality or to distinguish between benign and malignant pelvic masses. CA125 is a peptide epitope of a 3-5 million Da mucin, MUC16. Here we provide an in-depth review of the literature to highlight the importance of CA125 as a prognostic and diagnostic marker for ovarian cancer. We focus on the increasing body of literature describing the biological role of MUC16 in the progression and metastasis of ovarian tumors. Finally, we consider previous and on-going efforts to develop therapeutic approaches to eradicate ovarian tumors by targeting MUC16. Even though CA125 is a crucial marker for ovarian cancer, the exact structural definition of this antigen continues to be elusive. The importance of MUC16/CA125 in the diagnosis, progression and therapy of ovarian cancer warrants the need for in-depth research on the biochemistry and biology of this mucin. A renewed focus on MUC16 is likely to culminate in novel and more efficient strategies for the detection and treatment of ovarian cancer.
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Affiliation(s)
- Mildred Felder
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Arvinder Kapur
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53792, USA
| | | | - Sachi Horibata
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Joseph Heintz
- Department of Animal Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Ralph Albrecht
- Department of Animal Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Lucas Fass
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Justanjyot Kaur
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Kevin Hu
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
| | - Hadi Shojaei
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Rebecca J Whelan
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
| | - Manish S Patankar
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53792, USA
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Williams KA, Terry KL, Tworoger SS, Vitonis AF, Titus LJ, Cramer DW. Polymorphisms of MUC16 (CA125) and MUC1 (CA15.3) in relation to ovarian cancer risk and survival. PLoS One 2014; 9:e88334. [PMID: 24551091 PMCID: PMC3923771 DOI: 10.1371/journal.pone.0088334] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 01/06/2014] [Indexed: 01/09/2023] Open
Abstract
Objective To examine single nucleotide polymorphism (SNPs) in MUC16 (CA125) and MUC1 (CA15.3) in relation to ovarian cancer risk and survival. Methods We genotyped germline variants of MUC16 (rs2547065, rs1559168, rs12984471, rs2121133) and MUC1 (rs2070803, rs4072037, rs1045253) using samples collected from 758 ovarian cancer cases and 788 controls enrolled in the New England Case-Control Study between 2003 and 2008. We calculated age-adjusted odds ratios (OR) and 95% confidence intervals (CIs) for disease risk using unconditional and polytomous logistic regression and hazard ratios (HR) for survival using Cox proportional hazard ratios. In a subset of cases, we compared log-normalized CA125 values by genotype using generalized linear models. Results Cases homozygous for the variant allele of MUC16 SNP, rs12984471, had poorer overall survival (log-rank p = 0.03) and higher CA125 levels, especially cases over age 65 (p = 0.01). For MUC1 SNP, rs4072037, women homozygous for the G variant had a non-significantly decreased risk for serous invasive types but elevated risk for serous borderline tumors, mucinous borderline and invasive tumors, and endometrioid tumors. Women with the variant allele of MUC16 SNP, rs2547065, especially those who were homozygous had an elevated risk for ovarian cancer; but this association was not confirmed in an independent dataset. Conclusion This targeted screen of seven polymorphisms of MUC16 and MUC1 genes failed to identify and confirm effects on ovarian cancer risk overall. However, there may be effects of MUC16 rs12984471 on survival and MUC1 rs4072037 on risk for histologic types of ovarian cancer other than invasive serous. Further study is warranted.
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MESH Headings
- Adenocarcinoma, Mucinous/genetics
- Adenocarcinoma, Mucinous/mortality
- Adenocarcinoma, Mucinous/pathology
- Age Factors
- Aged
- CA-125 Antigen/genetics
- Carcinoma, Endometrioid/genetics
- Carcinoma, Endometrioid/mortality
- Carcinoma, Endometrioid/pathology
- Case-Control Studies
- Cystadenoma, Serous/genetics
- Cystadenoma, Serous/mortality
- Cystadenoma, Serous/pathology
- Female
- Homozygote
- Humans
- Membrane Proteins/genetics
- Middle Aged
- Mucin-1/genetics
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/mortality
- Ovarian Neoplasms/pathology
- Polymorphism, Single Nucleotide
- Proportional Hazards Models
- Risk Factors
- Survival Analysis
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Affiliation(s)
- Kristina A. Williams
- Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Kathryn L. Terry
- Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Shelley S. Tworoger
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Allison F. Vitonis
- Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
| | - Linda J. Titus
- Department of Community & Family Medicine, Department of Pediatrics, Dartmouth-Hitchcock Medical Center Lebanon, New Hampshire, United States of America
| | - Daniel W. Cramer
- Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
- * E-mail:
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Akita K, Tanaka M, Tanida S, Mori Y, Toda M, Nakada H. CA125/MUC16 interacts with Src family kinases, and over-expression of its C-terminal fragment in human epithelial cancer cells reduces cell-cell adhesion. Eur J Cell Biol 2013; 92:257-63. [PMID: 24246580 DOI: 10.1016/j.ejcb.2013.10.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 09/02/2013] [Accepted: 10/07/2013] [Indexed: 11/19/2022] Open
Abstract
MUC16/CA125 is over-expressed in human epithelial tumors including ovarian, breast and some other carcinomas. The purpose of this study is to investigate how cell surface MUC16 is functionally involved in tumor progression, with a special focus on the role of its cytoplasmic tail. Forced expression of C-terminal MUC16 fragment (MUC16C) in epithelial cancer cells increased cell migration. We found that MUC16C directly interacted with Src family kinases (SFKs). Notably, localizations of E-cadherin and β-catenin at the cell-cell contacts were more diffuse in MUC16C transfectants compared with mock transfectants. Furthermore, MUC16C transfectants showed reduced Ca(2+)-dependent cell-cell adhesion, but the treatment of cells with PP2, a SFKs inhibitor, restored this. Because cell surface MUC16 is also associated with the E-cadherin/β-catenin complex, the over-expression of MUC16 and its interaction with SFKs may enhance SFKs-induced deregulation of E-cadherin. Thus, our results suggest a role for cell surface MUC16 in cell-cell adhesion of epithelial cancer cells.
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Affiliation(s)
- Kaoru Akita
- Department of Molecular Biosciences, Faculty of Life Sciences, Kyoto Sangyo University, Kamigamo-Motoyama, Kita-ku, Kyoto 603-8555, Japan.
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Radhakrishnan P, Mohr AM, Grandgenett PM, Steele MM, Batra SK, Hollingsworth MA. MicroRNA-200c modulates the expression of MUC4 and MUC16 by directly targeting their coding sequences in human pancreatic cancer. PLoS One 2013; 8:e73356. [PMID: 24204560 PMCID: PMC3808362 DOI: 10.1371/journal.pone.0073356] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 07/19/2013] [Indexed: 01/07/2023] Open
Abstract
Transmembrane mucins, MUC4 and MUC16 are associated with tumor progression and metastatic potential in human pancreatic adenocarcinoma. We discovered that miR-200c interacts with specific sequences within the coding sequence of MUC4 and MUC16 mRNAs, and evaluated the regulatory nature of this association. Pancreatic cancer cell lines S2.028 and T3M-4 transfected with miR-200c showed a 4.18 and 8.50 fold down regulation of MUC4 mRNA, and 4.68 and 4.82 fold down regulation of MUC16 mRNA compared to mock-transfected cells, respectively. A significant reduction of glycoprotein expression was also observed. These results indicate that miR-200c overexpression regulates MUC4 and MUC16 mucins in pancreatic cancer cells by directly targeting the mRNA coding sequence of each, resulting in reduced levels of MUC4 and MUC16 mRNA and protein. These data suggest that, in addition to regulating proteins that modulate EMT, miR-200c influences expression of cell surface mucins in pancreatic cancer.
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Affiliation(s)
- Prakash Radhakrishnan
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Ashley M. Mohr
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Paul M. Grandgenett
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Maria M. Steele
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Surinder K. Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Michael A. Hollingsworth
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
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O’Shannessy DJ, Jackson SM, Twine NC, Hoffman BE, Dezso Z, Agoulnik SI, Somers EB. Gene expression analyses support fallopian tube epithelium as the cell of origin of epithelial ovarian cancer. Int J Mol Sci 2013; 14:13687-703. [PMID: 23880844 PMCID: PMC3742211 DOI: 10.3390/ijms140713687] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 06/18/2013] [Accepted: 06/20/2013] [Indexed: 02/06/2023] Open
Abstract
Folate receptor alpha (FOLR1/FRA) is reported to be overexpressed in epithelial ovarian cancers (EOC), especially the serous histotype. Further, while dysregulation of the folate-dependent 1-carbon cycle has been implicated in tumorogenesis, little is known relative to the potential mechanism of action of FOLR1 expression in these processes. We therefore investigated the expression of FOLR1, other folate receptors, and genes within the 1-carbon cycle in samples of EOC, normal ovary and fallopian tube on a custom TaqMan Low Density Array. Also included on this array were known markers of EOC such as MSLN, MUC16 and HE4. While few differences were observed in the expression profiles of genes in the 1-carbon cycle, genes previously considered to be overexpressed in EOC (e.g., FOLR1, MSLN, MUC16 and HE4) showed significantly increased expression when comparing EOC to normal ovary. However, when the comparator was changed to normal fallopian tube, these differences were abolished, supporting the hypothesis that EOC derives from fallopian fimbriae and, further, that markers previously considered to be upregulated or overexpressed in EOC are most likely not of ovarian origin, but fallopian in derivation. Our findings therefore support the hypothesis that the cell of origin of EOC is tubal epithelium.
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Affiliation(s)
- Daniel J. O’Shannessy
- Department of Translational Medicine and Diagnostics, Morphotek, Inc., 210 Welsh Pool Rd., Exton, PA 19341, USA; E-Mails: (S.M.J.); (B.E.H.); (E.B.S.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-610-423-6554; Fax: +1-610-423-6199
| | - Stephen M. Jackson
- Department of Translational Medicine and Diagnostics, Morphotek, Inc., 210 Welsh Pool Rd., Exton, PA 19341, USA; E-Mails: (S.M.J.); (B.E.H.); (E.B.S.)
| | - Natalie C. Twine
- Biomarkers and Personalized Medicine Core Functional Unit, Eisai Inc., Four Corporate Drive, Andover, MA 01810,USA; E-Mails: (N.C.T.); (Z.D.); (S.I.A.)
| | - Bryan E. Hoffman
- Department of Translational Medicine and Diagnostics, Morphotek, Inc., 210 Welsh Pool Rd., Exton, PA 19341, USA; E-Mails: (S.M.J.); (B.E.H.); (E.B.S.)
| | - Zoltan Dezso
- Biomarkers and Personalized Medicine Core Functional Unit, Eisai Inc., Four Corporate Drive, Andover, MA 01810,USA; E-Mails: (N.C.T.); (Z.D.); (S.I.A.)
| | - Sergei I. Agoulnik
- Biomarkers and Personalized Medicine Core Functional Unit, Eisai Inc., Four Corporate Drive, Andover, MA 01810,USA; E-Mails: (N.C.T.); (Z.D.); (S.I.A.)
| | - Elizabeth B. Somers
- Department of Translational Medicine and Diagnostics, Morphotek, Inc., 210 Welsh Pool Rd., Exton, PA 19341, USA; E-Mails: (S.M.J.); (B.E.H.); (E.B.S.)
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Abstract
OBJECTIVES Ovarian cancer is the most lethal gynecological malignancy in North America. Although survival rates are high when the disease is diagnosed at an early stage, this decreases exponentially in late-stage diagnoses. As such, there is a need for novel early detection biomarkers. Through an integrated approach to ovarian cancer biomarker discovery that combines proteomics with transcriptomics and bioinformatics, our laboratory has identified folate-receptor 1 (FOLR1) and Dickkopf-related protein 3 (Dkk-3) as putative biomarkers. The objective of this study was to measure the levels of FOLR1 and Dkk-3 in the serum of patients with ovarian cancer, benign gynecological conditions and healthy women. DESIGN AND METHODS FOLR1 and Dkk-3 were analyzed in serum of 100 ovarian cancer patients, 100 patients with benign gynecological conditions, and 100 healthy women using enzyme-linked immunosorbent assays (ELISAs). All specimens were analyzed in triplicate. RESULTS FOLR1 was significantly elevated in the serum of ovarian cancer patients compared to serum of both healthy controls (P<0.0001) and patients with benign gynecological conditions (P<0.0001). Furthermore, FOLR1 was strongly correlated with CA125 as both were elevated in the serous histotype and in late-stage disease. FOLR1 did not outperform CA125 in receiver operating characteristic curve analysis and there was no significant complementarity between the two markers. Dkk-3 was not significantly different between the three serum cohorts and was not correlated with CA125. CONCLUSIONS FOLR1 is a new biomarker for ovarian cancer which correlates closely with CA125. The role of FOLR1 in the pathogenesis of ovarian cancer warrants further investigation.
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Affiliation(s)
- F Leung
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
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Liang QD, Guo BQ, Wang XT, Li WX, Dong JY, Wang Q, Tu ZG. [Prokaryotic expression and purification of a tandem repeat of ovarian cancer antigen CA125 and preparation of its antiserum]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2012; 28:1154-1157. [PMID: 23127404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM To establish a prokaryotic expression system of the tandem repeat of CA125 (CA125R), express and purify the recombinant CA125R protein, prepare its antiserum. METHODS The full gene sequence of one tandem repeat of CA125 was synthesized and cloned into pET-32a(+) to construct a prokaryotic expression vector of the CA125R protein (pET-CA125R). The pET-CA125R was transformed into E.coli BL21 (DE3) and the soluble expression conditions were optimized; the pure recombinant CA125R protein was prepared by affinity Ni-NTA chromatography and identified by Western blotting. A rabbit was immunized with the pure recombinant CA125R protein to prepare its antiserum. RESULTS The prokaryotic expression vector of CA125R was successfully constructed. The optimal soluble induction expression conditions were 0.5 mmol/L isopropyl β-D-1-thiogalactopyranoside (IPTG) at 15DegreesCelsius for 6 h. Western blotting confirmed the pure CA125R recombinant protein of high purity. The prepared antiserum specifically recognized recombinant CA125R protein and natural CA125 glycoprotein. CONCLUSION We successfully established the efficient prokaryotic expression system of the CA125R, and prepared the recombinant CA125R protein of high purity and its antiserum.
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Yang Y, Ding YT, Gong HT, Yu ZJ, Li XT. [Expression and purification of mucin 16 and preparation and characterization of anti-mucin 16 monoclonal antibody]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2012; 28:960-963. [PMID: 22980662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM To generate monoclonal antibodies (mAbs) against mucin 16 using purified recombinant protein of human mucin 16 N terminus with His tag (His-mucin 16N) as the antigen. METHODS Mucin 16 N terminus was cloned into a prokaryotic expression vector pET-32. His-mucin 16N was then expressed in E.coli and purified by the affinity chromotography. Cell fusion was performed after the BALB/c mice were immunized with the purified His-mucin 16N protein. We screened hybridoma cell strains producing mAbs against mucin 16. The specificity and titer of the antibodies were characterized with ELISA, Western blotting, immunofluorescent and immunohistochemical staining. RESULTS The recombinant protein of His-mucin 16N was expressed and purified. A few hybridoma cell strains which could secrete specific mAbs against mucin 16 were obtained, and one anti-mucin 16 mAb with good specificity and high titer was selected and purified. The isotype of this anti-mucin 16 mAb was determined as IgG1, which indicated that this anti-mucin 16 mAb could be used for ELISA, Western blotting, immunofluorescent and immunohistochemical staining. The endogenous expression of mucin 16 in various cancer cell lines or tissues was also examined with this anti-mucin 16 antibody by Western blotting and other immunoassays. CONCLUSION The recombinant protein of His-mucin 16N was expressed and purified successfully, with which we prepared anti-mucin 16 mAb with good specificity and high titer.
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Affiliation(s)
- Yun Yang
- Hybridoma and Antibody Center, School of Life Sciences, Xiamen University, Xiamen, China.
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Yang Z, Drew DP, Jørgensen B, Mandel U, Bach SS, Ulvskov P, Levery SB, Bennett EP, Clausen H, Petersen BL. Engineering mammalian mucin-type O-glycosylation in plants. J Biol Chem 2012; 287:11911-23. [PMID: 22334671 PMCID: PMC3320939 DOI: 10.1074/jbc.m111.312918] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 01/16/2012] [Indexed: 11/06/2022] Open
Abstract
Mucin-type O-glycosylation is an important post-translational modification that confers a variety of biological properties and functions to proteins. This post-translational modification has a particularly complex and differentially regulated biosynthesis rendering prediction and control of where O-glycans are attached to proteins, and which structures are formed, difficult. Because plants are devoid of GalNAc-type O-glycosylation, we have assessed requirements for establishing human GalNAc O-glycosylation de novo in plants with the aim of developing cell systems with custom-designed O-glycosylation capacity. Transient expression of a Pseudomonas aeruginosa Glc(NAc) C4-epimerase and a human polypeptide GalNAc-transferase in leaves of Nicotiana benthamiana resulted in GalNAc O-glycosylation of co-expressed human O-glycoprotein substrates. A chimeric YFP construct containing a 3.5 tandem repeat sequence of MUC1 was glycosylated with up to three and five GalNAc residues when co-expressed with GalNAc-T2 and a combination of GalNAc-T2 and GalNAc-T4, respectively, as determined by mass spectrometry. O-Glycosylation was furthermore demonstrated on a tandem repeat of MUC16 and interferon α2b. In plants, prolines in certain classes of proteins are hydroxylated and further substituted with plant-specific O-glycosylation; unsubstituted hydroxyprolines were identified in our MUC1 construct. In summary, this study demonstrates that mammalian type O-glycosylation can be established in plants and that plants may serve as a host cell for production of recombinant O-glycoproteins with custom-designed O-glycosylation. The observed hydroxyproline modifications, however, call for additional future engineering efforts.
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Affiliation(s)
- Zhang Yang
- From the Department of Genetics and Biotechnology, Faculty of Agricultural Sciences, Aarhus University, Flakkebjerg, 4200 Slagelse, Denmark
| | | | - Bodil Jørgensen
- Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark, and
| | - Ulla Mandel
- the Center for Glycomics, Departments of Cellular and Molecular Medicine, and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, 2200 Copenhagen N, Denmark
| | - Søren S. Bach
- the Department of Plant Biology and Biotechnology and
| | - Peter Ulvskov
- the Department of Plant Biology and Biotechnology and
| | - Steven B. Levery
- the Center for Glycomics, Departments of Cellular and Molecular Medicine, and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, 2200 Copenhagen N, Denmark
| | - Eric P. Bennett
- the Center for Glycomics, Departments of Cellular and Molecular Medicine, and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, 2200 Copenhagen N, Denmark
| | - Henrik Clausen
- the Center for Glycomics, Departments of Cellular and Molecular Medicine, and School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, 2200 Copenhagen N, Denmark
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Haridas D, Chakraborty S, Ponnusamy MP, Lakshmanan I, Rachagani S, Cruz E, Kumar S, Das S, Lele SM, Anderson JM, Wittel UA, Hollingsworth MA, Batra SK. Pathobiological implications of MUC16 expression in pancreatic cancer. PLoS One 2011; 6:e26839. [PMID: 22066010 PMCID: PMC3204976 DOI: 10.1371/journal.pone.0026839] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2011] [Accepted: 10/04/2011] [Indexed: 12/16/2022] Open
Abstract
MUC16 (CA125) belongs to a family of high-molecular weight O-glycosylated proteins known as mucins. While MUC16 is well known as a biomarker in ovarian cancer, its expression pattern in pancreatic cancer (PC), the fourth leading cause of cancer related deaths in the United States, remains unknown. The aim of our study was to analyze the expression of MUC16 during the initiation, progression and metastasis of PC for possible implication in PC diagnosis, prognosis and therapy. In this study, a microarray containing tissues from healthy and PC patients was used to investigate the differential protein expression of MUC16 in PC. MUC16 mRNA levels were also measured by RT-PCR in the normal human pancreatic, pancreatitis, and PC tissues. To investigate its expression pattern during PC metastasis, tissue samples from the primary pancreatic tumor and metastases (from the same patient) in the lymph nodes, liver, lung and omentum from Stage IV PC patients were analyzed. To determine its association in the initiation of PC, tissues from PC patients containing pre-neoplastic lesions of varying grades were stained for MUC16. Finally, MUC16 expression was analyzed in 18 human PC cell lines. MUC16 is not expressed in the normal pancreatic ducts and is strongly upregulated in PC and detected in pancreatitis tissue. It is first detected in the high-grade pre-neoplastic lesions preceding invasive adenocarcinoma, suggesting that its upregulation is a late event during the initiation of this disease. MUC16 expression appears to be stronger in metastatic lesions when compared to the primary tumor, suggesting a role in PC metastasis. We have also identified PC cell lines that express MUC16, which can be used in future studies to elucidate its functional role in PC. Altogether, our results reveal that MUC16 expression is significantly increased in PC and could play a potential role in the progression of this disease.
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Affiliation(s)
- Dhanya Haridas
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Subhankar Chakraborty
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Moorthy P. Ponnusamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Imayavaramban Lakshmanan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Satyanarayana Rachagani
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Eric Cruz
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Sushil Kumar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Srustidhar Das
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Subodh M. Lele
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Judy M. Anderson
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Uwe A. Wittel
- Department of General and Visceral Surgery, Universitätsklinik Freiburg, Freiburg, Germany
| | - Michael A. Hollingsworth
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Surinder K. Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
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Bouanene H, Hadj Kacem H, Ben Fatma L, Ben Limem H, Ben Ahmed S, Yakoub S, Miled A. Polymorphisms in the MUC16 gene: potential implication in epithelial ovarian cancer. Pathol Oncol Res 2010; 17:295-9. [PMID: 21046495 DOI: 10.1007/s12253-010-9314-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Accepted: 10/01/2010] [Indexed: 11/26/2022]
Abstract
MUC16 plays an important role in epithelial ovarian cancer. In this paper, we studied the association between two tags SNPs of MUC16 and the risk of epithelial ovarian cancer. We aimed also to test the association between these tags SNPs and elevated level of the protein CA125. We analyzed a collection of 117 cases. Forty-one samples of patients with epithelial ovarian cancer and 76 samples from Tunisian volunteers were genotyped for two synonymous coding tags SNPs of the MUC16 gene (rs1596797, A/C and rs2547065, C/G) using polymerase chain reaction and sequencing. For the rs1596797 SNP, there was no significant difference in genotype distribution, a rare variation observed in only one patient. For the polymorphism rs2547065, mean CA125 levels were 24 and 78 UI/ml in patients with GG and GC genotypes versus 230 UI/ml in patients with CC genotype (P = 0.36). Compared to the C/C genotype, the 'G' allele (C/G+G/G genotypes) did not significantly modified the risk of developing epithelial ovarian cancer (OR = 0.43; 95% CI). As for the polymorphism rs1596797, compared to the C/C genotype, the 'A' allele (C/A+A/A genotypes) did not significantly modified the risk of developing epithelial ovarian cancer (OR = 881.7; 95% CI). MUC16 gene polymorphisms selected in this study are neither involved in genetic predisposition to epithelial ovarian cancer nor associated with CA125 level.
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Affiliation(s)
- Houda Bouanene
- Laboratory of Biochemistry-CHU Farhat Hached, Sousse 4000, Tunisia.
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Albertsmeyer AC, Kakkassery V, Spurr-Michaud S, Beeks O, Gipson IK. Effect of pro-inflammatory mediators on membrane-associated mucins expressed by human ocular surface epithelial cells. Exp Eye Res 2010; 90:444-51. [PMID: 20036239 PMCID: PMC2880853 DOI: 10.1016/j.exer.2009.12.009] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Revised: 12/04/2009] [Accepted: 12/14/2009] [Indexed: 11/17/2022]
Abstract
Membrane-associated mucins are altered on the ocular surface in non-Sjögren's dry eye. This study sought to determine if inflammatory mediators, present in tears of dry eye patients, regulate membrane-associated mucins MUC1 and -16 at the level of gene expression, protein biosynthesis and/or ectodomain release. A human corneal limbal epithelial cell line (HCLE), which produces membrane-associated mucins, was used. Cells were treated with interleukin (IL)-6, -8, or -17, tumor necrosis factor-alpha (TNF-alpha), and Interferon-gamma (IFN-gamma), or a combination of TNF-alpha and IFN-gamma, or IFN-gamma and IL-17, for 1, 6, 24, or 48 h. Presence of receptors for these mediators was verified by RT-PCR. Effects of the cytokines on expression levels of MUC1 and -16 were determined by real-time PCR, and on mucin protein biosynthesis and ectodomain release in cell lysates and culture media, respectively, by immunoblot analysis. TNF-alpha and IFN-gamma each significantly induced MUC1 expression, cellular protein content and ectodomain release over time. Combined treatment with the two cytokines was not additive. By comparison, one of the inflammatory mediators, IFN-gamma, affected all three parameters-gene expression, cellular protein, and ectodomain release-for MUC16. Combined treatment with TNF-alpha and IFN-gamma showed effects similar to IFN-gamma alone, except that ectodomain release followed that of TNF-alpha, which induced MUC16 ectodomain release. In conclusion, inflammatory mediators present in tears of dry eye patients can affect MUC1 and -16 on corneal epithelial cells and may be responsible for alterations of surface mucins in dry eye.
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Affiliation(s)
- Ann-Christin Albertsmeyer
- Schepens Eye Research Institute and Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Vinodh Kakkassery
- Schepens Eye Research Institute and Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Sandra Spurr-Michaud
- Schepens Eye Research Institute and Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Olivia Beeks
- Schepens Eye Research Institute and Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Ilene K. Gipson
- Schepens Eye Research Institute and Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
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Bellone S, Anfossi S, O'Brien TJ, Cannon MJ, Silasi DA, Azodi M, Schwartz PE, Rutherford TJ, Pecorelli S, Santin AD. Generation of CA125-specific cytotoxic T lymphocytes in human leukocyte antigen-A2.1-positive healthy donors and patients with advanced ovarian cancer. Am J Obstet Gynecol 2009; 200:75.e1-10. [PMID: 18976739 DOI: 10.1016/j.ajog.2008.08.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2008] [Revised: 06/17/2008] [Accepted: 08/07/2008] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To identify potential immunogenic peptides derived from CA125. STUDY DESIGN A bioinformatics approach was used to identify peptides derived from CA125 that bind to human leukocyte antigen A2.1 and elicit peptide-specific human cytotoxic T-lymphocyte responses in healthy individuals and patients with ovarian carcinoma. RESULTS CD8+ cytotoxic T-lymphocyte populations generated against 4 CA125-derived peptides were able to induce lysis of autologous peptide-loaded target cells. CA125 YTLDrDSLYV peptide-specific cytotoxic T lymphocytes were found to effectively kill ovarian tumors expressing CA125. Cytotoxicity was inhibited by antihuman leukocyte antigen A2.1 (BB7-2) and antihuman leukocyte antigen class I (W6/32) antibodies, whereas natural killer-sensitive targets were not lysed. YTLDrDSLYV peptide-specific cytotoxic T lymphocyte precursor frequency was low in peripheral blood leukocytes of normal donors and patients with ovarian cancer as determined by interferon-gamma production in ELISPOT assays. Intracellular cytokine expression measured by flow cytometry showed a type 1 cytokine profile in YTLDrDSLYV peptide-specific cytotoxic T lymphocytes. CONCLUSION The CA125 YTLDrDSLYV peptide is an immunogenic epitope and may represent an attractive target for immunotherapy of ovarian cancer.
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Affiliation(s)
- Stefania Bellone
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
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Dogru M, Matsumoto Y, Okada N, Igarashi A, Fukagawa K, Shimazaki J, Tsubota K, Fujishima H. Alterations of the ocular surface epithelial MUC16 and goblet cell MUC5AC in patients with atopic keratoconjunctivitis. Allergy 2008; 63:1324-34. [PMID: 18782111 DOI: 10.1111/j.1398-9995.2008.01781.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND An increased understanding of the ocular surface at cellular level in the conjunctiva and the cornea may help explain the pathogenesis and the subsequent clinical appearance of atopic ocular allergies, which may be potentially blinding. PURPOSE To investigate the MUC16 and MUC5AC alterations, tear function and the ocular surface disorder in patients with atopic keratoconjunctivitis (AKC). METHODS Thirty-six eyes of 18 AKC patients as well as 28 eyes of 14 age- and sex-matched normal subjects were studied. The subjects underwent corneal sensitivity measurements, Schirmer test, tear film break-up time (BUT), fluorescein and Rose-Bengal staining of the ocular surface, conjunctival impression cytology and brush cytology. Impression cytology samples underwent periodic acid schiff and immunohistochemical staining with MUC16 and MUC5AC antibodies. Brush cytology specimens underwent evaluation for inflammatory cell numbers and quantitative real-time polymerase chain reaction (PCR) for MUC16 and MUC5AC mRNA expression. RESULTS The mean corneal sensitivity and BUT values were significantly lower in patients with AKC, compared with controls (P < 0.001). Brush cytology specimens from AKC patients revealed significantly higher numbers of inflammatory cells (P < 0.001). Specimens from patient eyes showed positive staining for MUC5AC and MUC16. MUC16 mRNA expression was significantly upregulated with significant downregulation of MUC5AC mRNA expression in eyes with AKC compared with the eyes of control subjects. CONCLUSION Ocular surface inflammation, decline in corneal sensitivity, tear film instability, changes in conjunctival epithelial MUC5AC and MUC16 mRNA expressions were thought to be important in the pathogenesis of atopic ocular surface disease.
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Affiliation(s)
- M Dogru
- Department of Ophthalmology, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan
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