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Chapel DB, Howitt BE, Sholl LM, Dal Cin P, Nucci MR. Atypical uterine polyps show morphologic and molecular overlap with mullerian adenosarcoma but follow a benign clinical course. Mod Pathol 2022; 35:106-116. [PMID: 34675347 DOI: 10.1038/s41379-021-00946-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 11/09/2022]
Abstract
A subset of clinically benign uterine polyps shows atypical morphologic features worrisome for, but not diagnostic of, Mullerian adenosarcoma. We report clinicopathologic data for 63 polyps from 58 women with atypical morphologic features including abnormal architecture, abnormal periglandular stroma, stromal atypia, and mitoses >2 per 10 hpf. Four (11%) of 36 women with follow-up tissue sampling had residual/recurrent atypical polyp. Twelve (27%) of 44 women underwent hysterectomy subsequent to a diagnosis of atypical polyp. No patient developed adenosarcoma over median follow-up of 150 months. Twenty-one primary atypical polyps underwent molecular profiling. Five (24%) harbored chr 12q13-15 gain or amplification, 9/20 (45%) harbored chr 6q25.1 gain, and 7/21 (33%) had no significant copy number alterations. Gains of chr 1q, chr 8p12, and chr 10q11.21-23, amplifications of chr 12q24.12-13, chr 15p24.1-26.1, and chr 18q21.33, and loss of chr 7 and chr 11q21 were each seen in a single polyp. Mean tumor mutational burden was 3.1 (range, 0.76-8.365) mutations/Mb. Pathogenic point mutations were identified in 12/20 (60%) primary atypical polyps. We propose the term "atypical uterine polyps" for these lesions, which show biologic overlap with early Mullerian adenosarcoma but lack molecular alterations characteristic of clinically aggressive adenosarcoma and appear to follow a benign clinical course. Conservative management with close clinical follow-up and repeat sampling can be considered for these lesions, when clinically appropriate.
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Affiliation(s)
- David B Chapel
- Division of Women's and Perinatal Pathology, Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA. .,Department of Pathology, University of Michigan - Michigan Medicine, Ann Arbor, MI, USA.
| | - Brooke E Howitt
- Division of Women's and Perinatal Pathology, Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA.,Department of Pathology, Stanford University Medical Center, Stanford, CA, USA
| | - Lynette M Sholl
- Center for Advanced Molecular Diagnostics, Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Paola Dal Cin
- Center for Advanced Molecular Diagnostics, Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Marisa R Nucci
- Division of Women's and Perinatal Pathology, Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
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Nagaishi M, Nakae R, Matsumoto Y, Fujii Y, Sugiura Y, Takigawa T, Suzuki K. High HMGA2 expression without gene rearrangement in meningiomas. Neuropathology 2020; 40:540-545. [PMID: 32812281 DOI: 10.1111/neup.12670] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/16/2020] [Accepted: 03/09/2020] [Indexed: 12/25/2022]
Abstract
High mobility group AT-hook 2 (HMGA2) is a non-histone transcriptional regulator protein. Aberrant expression of the HMGA2 gene (HMGA2) and structural rearrangement at the chromosomal region 12q14 with HMGA2 involvement have been reported in several mesenchymal tumors. We analyzed truncated and full-length HMGA2 expression in 55 cases of meningioma, the most common brain tumor of mesenchymal origin. Fluorescence in situ hybridization and 3'-rapid amplification of cDNA ends were used to investigate the possibility of gene rearrangements. Moreover, the relationship between HMGA2 expression and clinicopathological features was assessed. Compared with normal brain tissues, 95% of the meningioma tissues exhibited increased HMGA2 expression. In 14 cases, the expression of truncated HMGA2 was more than two-fold higher than that of paired full-length HMGA2. Chromosomal translocation involving the chromosomal region 12q14 was undetectable. No significant correlation was found between the Ki-67 labeling index and HMGA2 expression and between the HMGA2 expression and the clinicopathological features. The majority of the meningioma cases displayed increased HMGA2 expression, which was not attributed to the chromosomal rearrangement at the corresponding region. Similar to that in the other mesenchymal tumors, increased HMGA2 expression was not associated with tumor cell proliferation in meningiomas.
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Affiliation(s)
- Masaya Nagaishi
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Koshigaya-shi, Saitama, Japan
| | - Ryuta Nakae
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Koshigaya-shi, Saitama, Japan
| | - Yoshiyuki Matsumoto
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Koshigaya-shi, Saitama, Japan
| | - Yoshiko Fujii
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Koshigaya-shi, Saitama, Japan
| | - Yoshiki Sugiura
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Koshigaya-shi, Saitama, Japan
| | - Tomoji Takigawa
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Koshigaya-shi, Saitama, Japan
| | - Kensuke Suzuki
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Koshigaya-shi, Saitama, Japan
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Brunetti M, Panagopoulos I, Micci F, Davidson B. MGMT
promoter methylation is a rare epigenetic change in malignant effusions. Cytopathology 2019; 31:12-15. [DOI: 10.1111/cyt.12782] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/10/2019] [Accepted: 10/26/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Marta Brunetti
- Section for Cancer CytogeneticsInstitute for Cancer Genetics and InformaticsThe Norwegian Radium HospitalOslo University Hospital Oslo Norway
- Department of PathologyNorwegian Radium HospitalOslo University Hospital Oslo Norway
- Institute of Clinical MedicineFaculty of MedicineUniversity of Oslo Oslo Norway
| | - Ioannis Panagopoulos
- Section for Cancer CytogeneticsInstitute for Cancer Genetics and InformaticsThe Norwegian Radium HospitalOslo University Hospital Oslo Norway
| | - Francesca Micci
- Section for Cancer CytogeneticsInstitute for Cancer Genetics and InformaticsThe Norwegian Radium HospitalOslo University Hospital Oslo Norway
| | - Ben Davidson
- Department of PathologyNorwegian Radium HospitalOslo University Hospital Oslo Norway
- Institute of Clinical MedicineFaculty of MedicineUniversity of Oslo Oslo Norway
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Liu HY, Zhang YY, Zhu BL, Feng FZ, Zhang HT, Yan H, Zhou B. MiR-203a-3p regulates the biological behaviors of ovarian cancer cells through mediating the Akt/GSK-3β/Snail signaling pathway by targeting ATM. J Ovarian Res 2019; 12:60. [PMID: 31277702 PMCID: PMC6612229 DOI: 10.1186/s13048-019-0532-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 06/12/2019] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVE To investigate whether miR-203a-3p can regulate the biological behaviors of ovarian cancer cells by targeting ATM to affect the Akt/GSK-3β/Snail signaling pathway. METHODS The expression levels of miR-203a-3p and ATM were detected by qRT-PCR, immunohistochemical staining and Western blotting in ovarian cancer tissues and adjacent normal tissues obtained from 152 subjects. A dual-luciferase reporter gene assay was performed to verify the relationship between miR-203a-3p and ATM. Human ovarian cancer cell lines (A2780 and SKOV3) were used to generate the Blank, miR-NC, miR-203a-3p mimic, Control siRNA, ATM siRNA, and miR-203a-3p inhibitor + ATM siRNA groups. The biological behaviors of ovarian cancer cells were evaluated by CCK-8, wound healing, and Transwell invasion assays, annexin V-FITC/PI staining and flow cytometry. The levels of Akt/GSK-3β/Snail pathway-related proteins were assessed by Western blotting. RESULTS Ovarian cancer tissues showed lower miR-203a-3p levels and higher ATM levels than adjacent normal tissues, both of which were associated with the FIGO stage, grade and prognosis of ovarian cancer. As confirmed by a dual-luciferase reporter gene assay, miR-203a-3p could target ATM. Furthermore, the miR-203a-3p mimic had multiple effects, including the inhibition of the proliferation, invasion and migration of A2780 and SKOV3 cells, the promotion of cell apoptosis, the arrest of the cell cycle at the G1 phase, and the blockage of the Akt/GSK-3β/Snail signaling pathway. ATM siRNA had similar effects on the biological behaviors of ovarian cancer cells, and these effects could be reversed by a miR-203a-3p inhibitor. CONCLUSION miR-203a-3p was capable of hindering proliferation, migration, and invasion and facilitating the apoptosis of ovarian cancer cells through its modulation of the Akt/GSK-3β/Snail signaling pathway by targeting ATM, and therefore it could serve as a potential therapeutic option for ovarian cancer.
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Affiliation(s)
- Hong-Yun Liu
- Department of Obstetrics and Gynecology, Linyi Central Hospital, Linyi, 276400, Shandong, China
| | - Yu-Ying Zhang
- Department of Obstetrics and Gynecology, Linyi Central Hospital, Linyi, 276400, Shandong, China
| | - Bao-Lian Zhu
- Department of Infection, Linyi Central Hospital, Linyi, 276400, Shandong, China
| | - Fu-Zhong Feng
- Department of Obstetrics and Gynecology, Linyi Central Hospital, Linyi, 276400, Shandong, China
| | - Hai-Tang Zhang
- Department of Obstetrics and Gynecology, Linyi Central Hospital, Linyi, 276400, Shandong, China
| | - Hua Yan
- Department of Obstetrics and Gynecology, Linyi Central Hospital, Linyi, 276400, Shandong, China
| | - Bin Zhou
- Department of Rehabilitation Medicine, Linyi Central Hospital, No.17, Jiankang Road, Linyi, 276400, Shandong, China.
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Brunetti M, Agostini A, Staurseth J, Davidson B, Heim S, Micci F. Molecular characterization of carcinosarcomas arising in the uterus and ovaries. Oncotarget 2019; 10:3614-3624. [PMID: 31217897 PMCID: PMC6557202 DOI: 10.18632/oncotarget.26942] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 04/29/2019] [Indexed: 02/06/2023] Open
Abstract
Gynaecological carcinosarcomas are rare biphasic tumours which are highly aggressive. We performed molecular investigations on a series of such tumours arising in the uterus (n = 16) and ovaries (n = 10) to gain more information on their mutational landscapes and the expression status of the genes HMGA1/2, FHIT, LIN28A, and MTA1, the pseudogenes HMGA1P6 and HMGA1P7, and the miRNAs known to influence expression of the above-mentioned genes. In uterine carcinosarcomas (UCS), we identified mutations in KRAS, PIK3CA, and TP53 with a frequency of 6%, 31%, and 75%, respectively, whereas in ovarian carcinosarcomas (OCS), TP53 was the only mutated gene found (30%). An inverse correlation was observed between overexpression of HMGA1/2, LIN28A, and MTA1 and downregulation of miRNAs such as let-7a, let-7d, miR26a, miR16, miR214, and miR30c in both UCS and OCS. HMGA2 was expressed in its full length in 14 UCS and 9 OCS; in the remaining tumours, it was expressed in its truncated form. Because FHIT was normally expressed while miR30c was downregulated, not both downregulated as is the case in several other carcinomas, alterations of the epithelial-mesenchymal transition through an as yet unknown mechanism seems to be a feature of carcinosarcomas.
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Affiliation(s)
- Marta Brunetti
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Department of Pathology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Antonio Agostini
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Julie Staurseth
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Ben Davidson
- Department of Pathology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Sverre Heim
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Francesca Micci
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
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Qiao B, Zhang Z, Li Y. Association of MGMT promoter methylation with tumorigenesis features in patients with ovarian cancer: A systematic meta-analysis. Mol Genet Genomic Med 2017; 6:69-76. [PMID: 29195029 PMCID: PMC5823672 DOI: 10.1002/mgg3.349] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 10/26/2017] [Indexed: 12/23/2022] Open
Abstract
Background The MGMT is a key tumor suppressor gene and aberrant promoter methylation has been reported in many cancers. However, the relationship between MGMT promoter methylation and ovarian cancer remains controversial. This meta‐analysis was first conducted to estimate the clinical significance of MGMT promoter methylation in ovarian carcinoma. Methods Literature search was performed in the PubMed, Embase, EBSCO and Cochrane Library databases. The pooled odds ratio (OR) and their corresponding 95% confidence interval (95% CI) were summarized. Results Final 10 studies with 910 ovarian tissue samples were included in this meta‐analysis. MGMT promoter methylation was significantly higher in ovarian cancer than in normal ovarian tissues (OR = 4.13, 95% CI = 2.32–7.33, p < .001). The MGMT had a similar methylation status in cancer versus benign lesions and low malignant potential (LMP) samples (OR = 2.01, 95% CI = 0.67–6.04, p = .212; OR = 1.42, 95% CI = 0.46–4.40, p = .543; respectively). MGMT promoter methylation was correlated with pathological types in which it was significantly lower in serous cancer than in nonserous cancer (OR = 0.29, 95% CI = 0.14–0.59, p = .001). The methylation of the MGMT promoter was not associated with clinical stage and tumor grade (OR = 1.46, 95% CI = 0.71–3.02, p = .301; OR = 1.13, 95% CI = 0.51–2.46, p = .767; respectively). Conclusions MGMT promoter methylation may be correlated with the tumorigenesis of ovarian cancer. It was associated with tumor histotypes, but not correlated with clinical stage and tumor grade. More prospective studies with lager sample sizes are necessary in the future.
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Affiliation(s)
- Baoli Qiao
- Department of Gynaecology and Obstetrics, Beijing Chao-Yang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Zhenyu Zhang
- Department of Gynaecology and Obstetrics, Beijing Chao-Yang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Yanfang Li
- Department of Gynaecology and Obstetrics, Beijing Chao-Yang Hospital Affiliated to Capital Medical University, Beijing, China
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Agostini A, Brunetti M, Davidson B, Tropé CG, Heim S, Panagopoulos I, Micci F. Genomic imbalances are involved in miR-30c and let-7a deregulation in ovarian tumors: implications for HMGA2 expression. Oncotarget 2017; 8:21554-21560. [PMID: 28423547 PMCID: PMC5400605 DOI: 10.18632/oncotarget.15795] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 01/31/2017] [Indexed: 01/27/2023] Open
Abstract
The High-mobility group AT-hook 2 protein (HMGA2) is involved in different processes during tumorigenesis. High expression levels of HMGA2 are found in various types of cancer, with recent studies highlighting the important role of miRNAs in the regulation of HMGA2 expression. We report a study of 155 ovarian tumors (30 sex-cord stromal tumors, 22 borderline tumors, and 103 carcinomas) analyzed for HMGA2 expression as well as the expression of two miRNAs targeting this gene, let-7a and miR-30c. We also evaluated the expression of the fragile histidine triad (FHIT) and lin28 homologues (LIN28A/B) genes which are known to be an enhancer of miR-30c expression and a repressor of let-7a, respectively. HMGA2 was found expressed at high levels in most samples analyzed, with clear cell carcinomas as the only exception. let-7a and miR-30c were highly deregulated in all tumor types. LIN28A and FHIT were found overexpressed in all examined tumor types. The chromosomal imbalances that might lead to loss of the genes expressing let-7a and miR-30c could be evaluated on the basis of previously generated karyotypic and high resolution comparative genomic hybridization (CGH) data on 103 tumors. 76% of the samples with an imbalanced genome had at least one chromosomal aberration leading to a deletion of a miRNA cluster for let-7a and miR-30c. FISH using locus specific probes for these clusters validate the aberrations at the gene level. Our study shows that genomic imbalances are involved in miR-30c and let-7a deregulation. One can reasonably assume that dysregulation of these miRNAs is a cause leading to HMGA2 upregulation in ovarian tumors.
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Affiliation(s)
- Antonio Agostini
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
| | - Marta Brunetti
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
| | - Ben Davidson
- Department of Pathology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Claes G Tropé
- Department of Gynecology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Sverre Heim
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ioannis Panagopoulos
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
| | - Francesca Micci
- Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
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