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Sköld C, Jansson AK, Glimelius I. Malignant ovarian and testicular germ cell tumors: Common characteristics but different prognoses. J Intern Med 2024; 295:715-734. [PMID: 38468475 DOI: 10.1111/joim.13778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Both ovarian and testicular germ cell tumors (GCTs) arise from the primordial germ cell and share many similarities. Both malignancies affect mainly young patients, show remarkable responsiveness to cisplatin-based therapy, and have an excellent prognosis, which also highlights the importance of minimizing long-term side effects. However, certain differences can be noted: The spreading of the disease differs, and the staging system and treatment recommendations are dissimilar. Moreover, the prognosis for ovarian GCTs is significantly inferior to that for testicular cancer, as exemplified in this review comparing the survival in Swedish patients diagnosed with testicular (1995-2022) and ovarian (1990-2018) GCTs. The 5-year overall survival in ovarian GCTs was 85.2%, versus 98.2% for testicular GCTs. How can this be explained? One reason may be the difference in knowledge, experience, and evidence because the incidence rate of testicular cancer is more than 15 times that of ovarian GCTs. Given the rarity of the disease in women and the lack of established guidelines, a comprehensive understanding of the disease and treatment decisions is challenging. The main objective of this review is to derive insights from testicular GCTs (seminoma and non-seminoma) by reviewing etiological, tumor biological, and clinical knowledge, and to thereafter suggest actions for ovarian GCTs based on this. We hypothesize that by adopting specific treatment strategies from testicular GCTs-including de-escalating adjuvant chemotherapy for low-risk patients and implementing more standardized and intensive treatment protocols in cases of relapse-we can improve the prognosis and minimize long-term side effects in ovarian GCT patients.
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Affiliation(s)
- Camilla Sköld
- Department of Immunology, Genetics and Pathology, Cancer Precision Medicine, Uppsala University, Uppsala, Sweden
| | - Anna K Jansson
- Department of Immunology, Genetics and Pathology, Cancer Precision Medicine, Uppsala University, Uppsala, Sweden
| | - Ingrid Glimelius
- Department of Immunology, Genetics and Pathology, Cancer Precision Medicine, Uppsala University, Uppsala, Sweden
- Department of Medicine, Clinical Epidemiology Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
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2
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Liang S, Ge H, Zhou S, Tang J, Gu Y, Wu X, Li J. Prognostic factors of 87 ovarian yolk sac tumor (OYST) patients and molecular characteristics of persistent and recurrent OYST. Gynecol Oncol 2024; 187:64-73. [PMID: 38733954 DOI: 10.1016/j.ygyno.2024.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/13/2024] [Accepted: 05/01/2024] [Indexed: 05/13/2024]
Abstract
OBJECTIVE We aimed to explore the characteristics of OYST, particularly for persistent and recurrent OYST, in order to explore potential treatment options and thereby improve patient outcomes. METHODS We retrospectively reviewed the clinical records of all patients with OYST at Fudan university Shanghai Cancer Center from December 3, 2005 to November 27, 2020. Furthermore, and performed whole-exome sequencing on 17 paired OYST (including 8 paired persistent and recurrent OYST) tumor and blood samples to elucidate the aberrant molecular features. RESULTS Totally, 87 OYST patients were included between 2007/03/13 and 2020/11/17. With a median follow-up of 73 [3-189] months, 22 patients relapsed or disease persisted. Overall, 17 patients died with a median overall survival of 21 [3-54] months. Univariate and multivariate analysis revealed tumor histology and residual lesions were independently associated with event free survival and overall survival, cycles to AFP normalization were another independent risk factor for overall survival. For the 8 persistent and recurrent OYST: cancer driver genes including ANKRD36, ANKRD62, DNAH8, MUC5B, NUP205, RYR2, STARD9, MUC16, TTN, ARID1A and PIK3CA were frequently mutated; cell cycle, ABC transporters, HR, NHEJ and AMPK signal pathway demonstrated as the most significantly enriched pathways; TMB, DNA MMR gene mutation and MSI were significantly higher. Mutation signature 11, 19 and 30 were the dominant contributors in persistent and recurrent OYST mutation. CONCLUSION Persistent and recurrent OYST associated with poor prognosis, and probably susceptible to immune checkpoint blockade therapy. Molecular characteristics contributed to predict the persistence and recurrence of OYST.
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Affiliation(s)
- Shanhui Liang
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Huijuan Ge
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Department of Pathology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| | - Shuling Zhou
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Department of Pathology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| | - Jie Tang
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Yanzi Gu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Department of Pathology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| | - Xiaohua Wu
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.
| | - Jin Li
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.
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3
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Travis LB, Feldman DR, Fung C, Poynter JN, Lockley M, Frazier AL. Adolescent and Young Adult Germ Cell Tumors: Epidemiology, Genomics, Treatment, and Survivorship. J Clin Oncol 2024; 42:696-706. [PMID: 37820296 DOI: 10.1200/jco.23.01099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/05/2023] [Accepted: 08/11/2023] [Indexed: 10/13/2023] Open
Abstract
Innovations in the care of adolescent and young adult (AYA) germ cell tumors (GCTs) are needed for one of the most common AYA cancers for which treatment has not significantly changed for several decades. Testicular GCTs (TGCTs) are the most common cancers in 15- to 39-year-old men, and ovarian GCTs (OvGCTs) are the leading gynecologic malignancies in women younger than 25 years. Excellent outcomes, even in widely metastatic disease using cisplatin-based chemotherapy, can be achieved since Einhorn and Donohue's landmark 1977 study in TGCT. However, as the severity of accompanying late effects (ototoxicity, neurotoxicity, cardiovascular disease, second malignant neoplasms, nephrotoxicity, and others) has emerged, efforts to deintensity treatment and find alternatives to cisplatin have taken on new urgency. Current innovations include the collaborative design of clinical trials that accrue GCTs across all ages and both sexes, including adolescents (previously on pediatric trials), and OvGCT (previously on gynecologic-only trials). Joint trials accrue larger sample sizes at a faster rate and therefore evaluate new approaches more rapidly. These joint trials also allow for biospecimen collection to further probe GCT etiology and underlying mechanisms of tumor growth, thus providing new therapeutic options. This AYA approach has been fostered by The Malignant Germ Cell International Consortium, which includes over 115 GCT disease experts from pediatric, gynecologic, and genitourinary oncologies in 16 countries. Trials in development incorporate, to our knowledge, for the first time, molecular risk stratification and precision oncology approaches on the basis of specific GCT biology. This collaborative AYA approach pioneering successfully in GCT could serve as a model for impactful research for other AYA cancer types.
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Affiliation(s)
- Lois B Travis
- Department of Medical Oncology, Indiana University, Indianapolis, IN
| | | | - Chunkit Fung
- J.P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY
| | - Jenny N Poynter
- Department of Pediatrics, University of Minnesota, Minneapolis, MN
| | - Michelle Lockley
- Centre for Cancer Genomics and Computational Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - A Lindsay Frazier
- Dana Farber-Boston Children's Cancer and Blood Disorders Center, Boston, MA
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4
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Gatius S, Matias Guiu X, Davidson B. Molecular features for timely cancer diagnosis and treatment - tumors of the ovary, fallopian tube and endometrium. Virchows Arch 2024; 484:339-351. [PMID: 38099957 DOI: 10.1007/s00428-023-03710-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/31/2023] [Accepted: 11/14/2023] [Indexed: 03/19/2024]
Abstract
Gynecologic pathology has moved, within only a few years, from being a diagnostic area devoid of molecular testing into a diagnostic discipline in which such analyses are becoming routine. The direct relevance of molecular characterization to the choice of treatment of patients with carcinomas originating in both the uterus and adnexae makes it likely that such testing will only expand along with our understanding of the molecular make-up of these tumors. As a consequence, gynecologic pathologists have become an integral part of patient management, rather than lab personnel providing external services.In parallel, molecular testing is expanding as a tool for diagnosing rare tumors affecting these organs, including soft tissue tumors, sex cord-stromal tumors and germ cell tumors, as well as other rare entities. Increased knowledge in this area bears directly on the ability to diagnose these tumors in a reproducible manner, as well as recognize and consult on genetic diseases. Hopefully, despite the inherent difficulty in studying rare cancers, it will also translate into new therapeutic options for the malignant ones among these rare cancers.
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Affiliation(s)
- Sonia Gatius
- Department of Pathology, Hospital Universitari Arnau de Vilanova de Lleida, Universitat de Lleida, IRBLleida, CIBERONC, Lleida, Spain.
| | - Xavier Matias Guiu
- Department of Pathology, Hospital Universitari Arnau de Vilanova de Lleida, Universitat de Lleida, IRBLleida, CIBERONC, Lleida, Spain
- Department of Pathology, Hospital Universitari de Bellvitge, IDIBELL, Universitat de Barcelona, Barcelona, Spain
| | - Ben Davidson
- Department of Pathology, Oslo University Hospital Montebello, Norwegian Radium Hospital, N-0310, Oslo, Norway.
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, N-0316, Oslo, Norway.
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5
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Liang Y, Ruan H, Yu M, Lü B. Ovarian squamous cell carcinoma associated with teratoma: a report of six cases with genomic analysis. Pathology 2023; 55:966-973. [PMID: 37739924 DOI: 10.1016/j.pathol.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/29/2023] [Accepted: 08/08/2023] [Indexed: 09/24/2023]
Abstract
Ovarian squamous cell carcinoma (SCC), particularly the sarcomatoid variant, arising from teratoma is a rare malignant tumour with unfavourable clinical outcomes. Its molecular genetic alterations have not been well-documented to date. This study aims to characterise the molecular features and to provide potential therapeutic targets in this rare entity. We analysed the clinicopathological and immunohistochemical features of six primary ovarian SCC. These cases were subject to targeted next-generation sequencing to detect genomic features. We found that all six ovarian SCC (four conventional and two sarcomatoid SCC) were associated with mature cystic teratomas. Patient 3 (FIGO stage IIIa) and Patient 4 (stage IIb) died of disease at 10 and 11 months, respectively. The remaining patients (three with stage I and one with IIc) including the two with sarcomatoid SCC, were alive with no evidence of disease at 28-72 months. All patients showed PD-L1 expression (tumour proportion score: range 10-78%, median 41%; combined positive score: range 12-85, median 42) and a high tumour mutation burden (range 13.4-25.7 mutations/Mb, median 16.5). The most frequently recurrent mutations included PIK3CA (4/6), TP53 (4/6), TERT promoter (4/6), CDKN2A (3/6). Mutations in homologous recombination repair pathway genes (BLM, ATM, BRCA1, BRIP1 and ATM) were found in 5/6 patients. The sarcomatoid SCC shared a similar mutational profile with conventional SCC, and no recurrent genetic mutations exclusively in sarcomatoid SCC were identified. Our study suggests the potential benefits of immune checkpoint inhibitors and/or PARP inhibitors in patients with primary ovarian SCC on account of PD-L1 expression and genomic features. Ovarian sarcomatoid SCC may be clonally related to the conventional SCC. A multiple-institutional, clinical and molecular study will consolidate these findings in the future.
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Affiliation(s)
- Yun Liang
- Department of Surgical Pathology, Women's Hospital, School of Medicine, Zhejiang University, China
| | - Huajuan Ruan
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, China
| | - Minghua Yu
- Department of Surgical Pathology, Women's Hospital, School of Medicine, Zhejiang University, China
| | - Bingjian Lü
- Department of Surgical Pathology, Women's Hospital, School of Medicine, Zhejiang University, China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, China; Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Hangzhou, Zhejiang Province, China.
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6
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Wood GE, Bunting CP, Veli M, Arora R, Berney DM, Alifrangis C, MacDonald ND, Miller RE, Shamash J, Stoneham S, Lockley M. Seminoma and dysgerminoma: evidence for alignment of clinical trials and de-escalation of systemic chemotherapy. Front Oncol 2023; 13:1271647. [PMID: 37954076 PMCID: PMC10634240 DOI: 10.3389/fonc.2023.1271647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/18/2023] [Indexed: 11/14/2023] Open
Abstract
Malignant germ cell tumours are a group of rare cancers whose incidence peaks in late adolescence and early adulthood. Dysgerminomas of the ovary and seminomas of the testis are analogous diseases, but seminomas have a 10-fold higher incidence. The two tumours are morphologically identical and are only differentiated by surrounding organ-specific tissue or testicular germ cell neoplasia in situ. They share genetic features including KIT and RAS mutations, amplification of chromosome 12p, and expression of pluripotency markers (NANOG (Nanog homeobox), OCT3/4 (Octamer-binding transcription factor 3/4), and SAL4 (Spalt-like trascription factor 4)). Both histologies are exquisitely sensitive to platinum chemotherapy, and the combination of bleomycin, etoposide, and cisplatin (BEP) yields survival rates greater than 90%. However, BEP causes significant, lifelong toxicity (cardiovascular, renal, respiratory, and neurological) in these young patients with an expectation of cure. Here, we comprehensively review the biological features of dysgerminoma and seminoma to demonstrate that they are biologically analogous diseases. We present available clinical trial data supporting de-escalation of chemotherapy treatment. Finally, we propose that future trials should enrol men, women, and children to benefit all patients regardless of age or sex.
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Affiliation(s)
- Georgina E. Wood
- Medical Oncology, University College London Hospital, London, United Kingdom
| | - Christopher P. Bunting
- Faculty of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Mesel Veli
- Medical Oncology, University College London Hospital, London, United Kingdom
| | - Rupali Arora
- Histopathology, University College London Hospital, London, United Kingdom
| | | | | | - Nicola D. MacDonald
- Department of Gynaecology, University College London Hospital, London, United Kingdom
| | - Rowan E. Miller
- Medical Oncology, University College London Hospital, London, United Kingdom
- Medical Oncology, Barts Health NHS Trust, London, United Kingdom
| | - Jonathan Shamash
- Medical Oncology, Barts Health NHS Trust, London, United Kingdom
| | - Sara Stoneham
- Paediatric Oncology, University College London Hospital, London, United Kingdom
| | - Michelle Lockley
- Medical Oncology, University College London Hospital, London, United Kingdom
- Centre for Cancer Genomics and Computational Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
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7
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Trozzi R, Rosati A, Panico C, Perisiano C, Santoro A, Fagotti A. Extra-cranial meningioma associated with relapse of immature ovarian teratoma. Int J Gynecol Cancer 2023; 33:1649-1654. [PMID: 37783480 DOI: 10.1136/ijgc-2023-004718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023] Open
Affiliation(s)
- Rita Trozzi
- Dipartimento di Scienze della salute della donna, del bambino e di sanità pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Universita Cattolica del Sacro Cuore, Rome, Italy
| | - Andrea Rosati
- Dipartimento di Scienze della salute della donna, del bambino e di sanità pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Universita Cattolica del Sacro Cuore, Rome, Italy
| | - Camilla Panico
- U.O.C. Radiologia Addomino-pelvica. Dipartimento Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Carlo Perisiano
- UOC Ortopedia e Traumatologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Angela Santoro
- Unità di Ginecopatologia e Patologia Mammaria, Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Anna Fagotti
- Dipartimento di Scienze della salute della donna, del bambino e di sanità pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Universita Cattolica del Sacro Cuore, Rome, Italy
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8
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Zhang Y, Wang X, Duan X, Du T, Chen X. The synergistic effect of EMT regulators and m6A modification on prognosis-related immunological signatures for ovarian cancer. Sci Rep 2023; 13:14872. [PMID: 37684273 PMCID: PMC10491820 DOI: 10.1038/s41598-023-41554-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
Recently, there has been growing interest among researchers in exploring the effects of epithelial-mesenchymal transformation (EMT) or N6-Methyladenosine (m6A) modification regulators on tumor development. However, the synergistic efficiency of these regulators in relation to ovarian cancer development remains unclear. This study aims to explore the transcription patterns of main regulators, including 19 EMT and 22 m6A, in ovarian cancer samples from TCGA datasets and normal samples from GTEx datasets. After conducting a LASSO regression analysis, ten prognostic signatures were identified, namely KIAA1429, WTAP, SNAI1, AXL, IGF2BP1, ELAVL1, CBLL1, CDH2, NANOG and ALKBH5. These signatures were found to have a comprehensive effect on immune infiltrating signatures and the final prognostic outcome. Next, utilizing the ssGSEA algorithm and conducting overall survival analyses, we have identified the key prognosis-related immunological signatures in ovarian cancer to be ALKBH5, WTAP, ELAVL1, and CDH2 as the regulators. The characteristic immune response and related genetic expression have revealed a significant correlation between the alteration of m6A regulators and EMT regulators, indicating a synergistic effect between these two factors in the development of ovarian cancer. In summary, our research offers a novel perspective and strategy to enhance the occurrence, progression, and prognosis of ovarian cancer.
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Affiliation(s)
- Yanna Zhang
- Department of Blood Transfusion, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, People's Republic of China
| | - Xun Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China
| | - Xiaogang Duan
- Chengdu Eighth People's Hospital/Geriatric Hospital of Chengdu Medical College, Chengdu, 610000, Sichuan, People's Republic of China
| | - Ting Du
- Noncoding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, 610000, Sichuan, People's Republic of China.
| | - Xiancheng Chen
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China.
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Doe-Tetteh SA, Camp SY, Reales D, Crowdis J, Noronha AM, Wolff B, Alano T, Galle J, Duygu Selcuklu S, Viale A, Socci ND, Liu YL, Tew WP, Aghajanian C, Ladanyi M, He MX, AlDubayan SH, Mazor RD, Shpilberg O, Hershkovitz-Rokah O, Riancho JA, Hernandez JL, Gonzalez-Vela MC, Buthorn JJ, Wilson M, Webber AE, Yabe M, Petrova-Drus K, Rosenblum M, Durham BH, Abdel-Wahab O, Berger MF, Donoghue MT, Kung AL, Bender JG, Shukla NN, Funt SA, Dogan A, Soslow RA, Al-Ahmadie H, Feldman DR, Van Allen EM, Diamond EL, Solit DB. Overcoming Barriers to Tumor Genomic Profiling through Direct-to-Patient Outreach. Clin Cancer Res 2023; 29:2445-2455. [PMID: 36862133 PMCID: PMC10330105 DOI: 10.1158/1078-0432.ccr-22-3247] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/05/2023] [Accepted: 02/28/2023] [Indexed: 03/03/2023]
Abstract
PURPOSE To overcome barriers to genomic testing for patients with rare cancers, we initiated a program to offer free clinical tumor genomic testing worldwide to patients with select rare cancer subtypes. EXPERIMENTAL DESIGN Patients were recruited through social media outreach and engagement with disease-specific advocacy groups, with a focus on patients with histiocytosis, germ cell tumors (GCT), and pediatric cancers. Tumors were analyzed using the MSK-IMPACT next-generation sequencing assay with the return of results to patients and their local physicians. Whole-exome recapture was performed for female patients with GCTs to define the genomic landscape of this rare cancer subtype. RESULTS A total of 333 patients were enrolled, and tumor tissue was received for 288 (86.4%), with 250 (86.8%) having tumor DNA of sufficient quality for MSK-IMPACT testing. Eighteen patients with histiocytosis have received genomically guided therapy to date, of whom 17 (94%) have had clinical benefit with a mean treatment duration of 21.7 months (range, 6-40+). Whole-exome sequencing of ovarian GCTs identified a subset with haploid genotypes, a phenotype rarely observed in other cancer types. Actionable genomic alterations were rare in ovarian GCT (28%); however, 2 patients with ovarian GCTs with squamous transformation had high tumor mutational burden, one of whom had a complete response to pembrolizumab. CONCLUSIONS Direct-to-patient outreach can facilitate the assembly of cohorts of rare cancers of sufficient size to define their genomic landscape. By profiling tumors in a clinical laboratory, results could be reported to patients and their local physicians to guide treatment. See related commentary by Desai and Subbiah, p. 2339.
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Affiliation(s)
- Seyram A. Doe-Tetteh
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Sabrina Y. Camp
- Department of Medical Oncology, Dana Farber Cancer Institute
- Cancer Program, Broad Institute of MIT and Harvard
| | - Dalicia Reales
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Jett Crowdis
- Department of Medical Oncology, Dana Farber Cancer Institute
- Cancer Program, Broad Institute of MIT and Harvard
| | - Anne Marie Noronha
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Bernadette Wolff
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Department of Nursing, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Tina Alano
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Department of Nursing, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Jesse Galle
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - S. Duygu Selcuklu
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Agnes Viale
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Nicholas D. Socci
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Bioinformatics Core, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Ying L. Liu
- Department of Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - William P. Tew
- Department of Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Carol Aghajanian
- Department of Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Joan & Sanford I. Weill Medical College of Cornell University, New York, NY, USA
| | - Marc Ladanyi
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Meng Xiao He
- Department of Medical Oncology, Dana Farber Cancer Institute
- Cancer Program, Broad Institute of MIT and Harvard
- Harvard Graduate Program in Biophysics, Boston, MA, 02115, USA
| | - Saud H. AlDubayan
- Department of Medical Oncology, Dana Farber Cancer Institute
- Cancer Program, Broad Institute of MIT and Harvard
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Roei David Mazor
- Clinic of Histiocytic Neoplasms, Institute of Hematology, Assuta Medical Center, Tel Aviv, Israel
| | - Ofer Shpilberg
- Clinic of Histiocytic Neoplasms, Institute of Hematology, Assuta Medical Center, Tel Aviv, Israel
- Adelson School of Medicine, Ariel University, Ariel, Israel
| | - Oshrat Hershkovitz-Rokah
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel, Israel
- Translational Research Lab, Assuta Medical Center, Tel-Aviv, Israel
| | - Jose A. Riancho
- Department of Internal Medicine, Hospital U.M. Valdecilla, University of Cantabria, IDIVAL, Santander, Spain
| | - Jose L. Hernandez
- Department of Internal Medicine, Hospital U.M. Valdecilla, University of Cantabria, IDIVAL, Santander, Spain
| | - M. Carmen Gonzalez-Vela
- Department of Pathology, Hospital U.M. Valdecilla, University of Cantabria, IDIVAL, Santander, Spain
| | - Justin J. Buthorn
- Department of Neurology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Manda Wilson
- Bioinformatics Core, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Amy E. Webber
- Bioinformatics Core, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Mariko Yabe
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Kseniya Petrova-Drus
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Marc Rosenblum
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Benjamin H. Durham
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Omar Abdel-Wahab
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michael F. Berger
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Mark T.A. Donoghue
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Andrew L. Kung
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Julia Glade Bender
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Neerav N. Shukla
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Samuel A. Funt
- Department of Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Joan & Sanford I. Weill Medical College of Cornell University, New York, NY, USA
| | - Ahmet Dogan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Robert A. Soslow
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Hikmat Al-Ahmadie
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Darren R. Feldman
- Department of Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Joan & Sanford I. Weill Medical College of Cornell University, New York, NY, USA
| | - Eliezer M. Van Allen
- Department of Medical Oncology, Dana Farber Cancer Institute
- Cancer Program, Broad Institute of MIT and Harvard
| | - Eli L. Diamond
- Department of Neurology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Joan & Sanford I. Weill Medical College of Cornell University, New York, NY, USA
| | - David B. Solit
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Department of Medicine, Memorial Sloan Kettering Cancer Center, NY, New York, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Joan & Sanford I. Weill Medical College of Cornell University, New York, NY, USA
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10
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Hall KC, Post MD, Alldredge J, Aisner DL, Berning A. Molecular Evidence for Epithelial Origin of Mixed Ovarian Epithelial-Germ Cell Neoplasms: Report of 2 Cases and Review of Literature. Int J Gynecol Pathol 2023; 42:403-413. [PMID: 36305517 PMCID: PMC10140189 DOI: 10.1097/pgp.0000000000000913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Ovarian germ cell tumors (GCT) account for 2% to 3% of malignant ovarian neoplasms in Western countries and typically occur within the first 2 decades. When presenting later in life, GCTs may be associated with epithelial malignancies. In these circumstances, it has been theorized that these tumors may originate from a somatic, rather than germ cell origin, especially in the postmenopausal setting; however, the true derivation is not fully understood. Our database was searched for primary ovarian GCTs associated with a malignant epithelial component in patients above 35 yr of age, from 2006 to 2021. Two cases were identified and in each case, slides were reviewed and targeted next-generation sequencing was utilized to identify and compare gene mutation variants in morphologically distinct components. Patient A is a 58-yr-old, with choriocarcinoma and minor component of mucinous adenocarcinoma, and patient B is a 43-yr-old, with yolk sac tumor and minor component of endometrioid adenocarcinoma. The morphologically distinct areas in each case showed disparate staining patterns; however, next-generation sequencing demonstrated identical mutation variants within both the germ cell and epithelial components. Variants in CDKN2A , PIK3CA , PIK3R1 , and TP53 were present in patient A's tumor, while patient B's tumor showed CTNNB1 , PIK3R1 , and 2 PTEN variants. These mutational patterns are similar to those seen in pure epithelial counterparts, suggesting somatic derivation of the germ cell component. These rare tumors portend a poor prognosis and understanding their origin has clinical and therapeutic implications.
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Affiliation(s)
- Katie C. Hall
- Department of Pathology, University of Colorado Anschutz Medical Campus
| | - Miriam D. Post
- Department of Pathology, University of Colorado Anschutz Medical Campus
| | - Jill Alldredge
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, University of Colorado Anschutz Medical Campus
| | - Dara L. Aisner
- Department of Pathology, University of Colorado Anschutz Medical Campus
| | - Amber Berning
- Department of Pathology, University of Colorado Anschutz Medical Campus
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11
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Saani I, Raj N, Sood R, Ansari S, Mandviwala HA, Sanchez E, Boussios S. Clinical Challenges in the Management of Malignant Ovarian Germ Cell Tumours. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6089. [PMID: 37372675 DOI: 10.3390/ijerph20126089] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/22/2023] [Accepted: 04/25/2023] [Indexed: 06/29/2023]
Abstract
Nonepithelial ovarian cancers (NEOC) are a group of rare malignancies, including germ cell tumours (GCT) and sex cord-stromal tumours (SCST), along with small-cell carcinomas and sarcomas. GCTs represent 2-5% of ovarian cancers, with a yearly incidence of 4:100,000, and they usually affect young women and adolescents. Precursory germ cells of the ovary form the basis of GCT. They are histologically classified into primitive GCT, teratomas, and monodermal and somatic-type tumours associated with dermoid cysts. A primitive GCT can be either a yolk sac tumour (YST), dysgerminoma, or mixed germ cell neoplasm. Teratomas are either mature (benign) or immature (malignant). Given that malignant GCTs occur rarely compared to epithelial ovarian tumours (EOC), greater focus is required in their diagnosis and treatment. In this article, we review the epidemiology, clinical manifestations, diagnosis, and molecular biology, along with the management and therapeutic challenges.
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Affiliation(s)
- Iqra Saani
- Department of Medicine, Medway NHS Foundation Trust, Windmill Road, Gillingham ME7 5NY, UK
| | - Nitish Raj
- Department of Radiology, University Hospitals Plymouth NHS Trust, Plymouth PL6 8DH, UK
| | - Raja Sood
- Department of Clinical Medical Education, Epsom and St Helier University Hospitals NHS Trust, Epsom KT18 7EG, UK
| | - Shahbaz Ansari
- Department of Medicine, Glan Clwyd Hospital, NHS Wales, Denbighshire LL18 5UJ, UK
| | - Haider Abbas Mandviwala
- Department of Internal Medicine, School of Medicine, Faculty of Health Sciences, Ziauddin Medical University, Karachi 75000, Sindh, Pakistan
| | - Elisabet Sanchez
- Department of Medical Oncology, Medway NHS Foundation Trust, Windmill Road, Gillingham ME7 5NY, UK
| | - Stergios Boussios
- Department of Medical Oncology, Medway NHS Foundation Trust, Windmill Road, Gillingham ME7 5NY, UK
- Faculty of Life Sciences & Medicine, School of Cancer & Pharmaceutical Sciences, King's College London, London SE1 9RT, UK
- Kent Medway Medical School, University of Kent, Canterbury CT2 7LX, UK
- AELIA Organization, 9th Km Thessaloniki-Thermi, 57001 Thessaloniki, Greece
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12
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Pinto MT, Eiras Martins G, Vieira AGS, Galvão JMS, de Pádua Souza C, Macedo CRPD, Lopes LF. Molecular Biology of Pediatric and Adult Ovarian Germ Cell Tumors: A Review. Cancers (Basel) 2023; 15:cancers15112990. [PMID: 37296950 DOI: 10.3390/cancers15112990] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 06/12/2023] Open
Abstract
Ovarian germ cell tumors (OGCTs) are rare in adults; indeed, they occur predominantly in children, adolescents, and young adults, and they account for approximately 11% of cancer diagnoses in these groups. Because OGCTs are rare tumors, our current understanding of them is sparse; this is because few studies have investigated the molecular basis of pediatric and adult cancers. Here, we review the etiopathogenesis of OGCTs in children and adults, and we address the molecular landscape of these tumors, including integrated genomic analysis, microRNAs, DNA methylation, the molecular implications of treatment resistance, and the development of in vitro and in vivo models. An elucidation of potential molecular alterations may provide a novel field for understanding the pathogenesis, tumorigenesis, diagnostic markers, and genetic peculiarity of the rarity and complexity of OGCTs.
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Affiliation(s)
| | - Gisele Eiras Martins
- Brazilian Childhood Germ Cell Tumor Study Group, The Brazilian Pediatric Oncology Society (SOBOPE), Barretos 14784400, Brazil
- Children's Cancer Hospital from Hospital de Amor, Barretos 14784400, Brazil
| | - Ana Glenda Santarosa Vieira
- Brazilian Childhood Germ Cell Tumor Study Group, The Brazilian Pediatric Oncology Society (SOBOPE), Barretos 14784400, Brazil
- Children's Cancer Hospital from Hospital de Amor, Barretos 14784400, Brazil
| | | | | | - Carla Renata Pacheco Donato Macedo
- Brazilian Childhood Germ Cell Tumor Study Group, The Brazilian Pediatric Oncology Society (SOBOPE), Barretos 14784400, Brazil
- Pediatric Oncology Department, IOP/GRAACC/Federal University of Sao Paulo, Sao Paulo 04038001, Brazil
| | - Luiz Fernando Lopes
- Brazilian Childhood Germ Cell Tumor Study Group, The Brazilian Pediatric Oncology Society (SOBOPE), Barretos 14784400, Brazil
- Children's Cancer Hospital from Hospital de Amor, Barretos 14784400, Brazil
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13
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Cao M, Deng Y, Deng Y, Wu J, Yang C, Wang Z, Hou Q, Fu H, Ren Z, Xia X, Li Y, Wang W, Xu H, Liao X, Shu Y. Characterization of immature ovarian teratomas through single-cell transcriptome. Front Immunol 2023; 14:1131814. [PMID: 36936909 PMCID: PMC10020330 DOI: 10.3389/fimmu.2023.1131814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 02/20/2023] [Indexed: 03/06/2023] Open
Abstract
Introduction Immature ovarian teratomas are a type of malignant germ cell tumor composed of complicated cell types and are characterized by pathological features of immature neuroectodermal tubules/rosettes. However, there is a lack of understanding of patient-derived immature ovarian teratomas (PDT) at the single cell level. Moreover, whether stem cell lines derived from immature teratomas (CDT) can be used as models for research on PDT remains to be elucidated. Methods Single-cell RNA sequencing (scRNA-seq) and subsequent bioinformatic analysis was performed on three patient-derived immature ovarian teratomas (PDT) samples to reveal the heterogeneity, evolution trajectory, and cell communication within the tumor microenvironment of PDT. Validations were conducted in additional seven samples through multiplex immunofluorescence. Result A total of qualified 22,153 cells were obtained and divided into 28 clusters, which can match to the scRNA-seq annotation of CDT as well as human fetal Cell Atlas, but with higher heterogeneity and more prolific cell-cell crosstalk. Radial glia cells (tagged by SOX2) and immature neuron (tagged by DCX) exhibited mutually exclusive expression and differentiated along distinct evolutionary trajectory from cycling neural progenitors. Proportions of these neuroectodermal cell subtypes may play important roles in PDT through contributing to the internal heterogeneity of PDTs. Moreover, the immune cells in PDTs were infiltrated rather than teratoma-derived, with more abundant macrophage in immature neuron than those in radial glia cells, and the infiltrated macrophage subtypes (i.e., M1 and M2) were significantly correlated to clinical grade. Overall, suppressed evolution process and transcriptome regulation in neuroectodermal cells, reduced cell-cell crosstalk, higher M1/M2 proportion ratio, and enhanced T cell effects in tumor microenvironment are enriched in patients with favorable prognosis. Discussion This study provides a comprehensive profile of PDT at the single cell level, shedding light on the heterogeneity and evolution of neuroectodermal cells within PDTs and the role of immune cells within the tumor microenvironment. Also, our findings highlight the potential usage of CDTs as a model for research on PDT.
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Affiliation(s)
- Minyuan Cao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yun Deng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yiqi Deng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jing Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chongyi Yang
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Zijun Wang
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Qianqian Hou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Huancheng Fu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhixiang Ren
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xuyang Xia
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yue Li
- Research Core Facility of West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wei Wang
- Department of Pathology, West China Second Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Heng Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Division of Laboratory Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- *Correspondence: Yang Shu, ; Xin Liao, ; Heng Xu,
| | - Xin Liao
- Department of Pathology, West China Second Hospital, Sichuan University, Chengdu, Sichuan, China
- *Correspondence: Yang Shu, ; Xin Liao, ; Heng Xu,
| | - Yang Shu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- *Correspondence: Yang Shu, ; Xin Liao, ; Heng Xu,
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14
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Oliver TRW, Chappell L, Sanghvi R, Deighton L, Ansari-Pour N, Dentro SC, Young MD, Coorens THH, Jung H, Butler T, Neville MDC, Leongamornlert D, Sanders MA, Hooks Y, Cagan A, Mitchell TJ, Cortes-Ciriano I, Warren AY, Wedge DC, Heer R, Coleman N, Murray MJ, Campbell PJ, Rahbari R, Behjati S. Clonal diversification and histogenesis of malignant germ cell tumours. Nat Commun 2022; 13:4272. [PMID: 35953478 PMCID: PMC9372159 DOI: 10.1038/s41467-022-31375-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 06/13/2022] [Indexed: 12/21/2022] Open
Abstract
Germ cell tumours (GCTs) are a collection of benign and malignant neoplasms derived from primordial germ cells. They are uniquely able to recapitulate embryonic and extraembryonic tissues, which carries prognostic and therapeutic significance. The developmental pathways underpinning GCT initiation and histogenesis are incompletely understood. Here, we study the relationship of histogenesis and clonal diversification in GCTs by analysing the genomes and transcriptomes of 547 microdissected histological units. We find no correlation between genomic and histological heterogeneity. However, we identify unifying features including the retention of fetal developmental transcripts across tissues, expression changes on chromosome 12p, and a conserved somatic evolutionary sequence of whole genome duplication followed by clonal diversification. While this pattern is preserved across all GCTs, the developmental timing of the duplication varies between prepubertal and postpubertal cases. In addition, tumours of younger children exhibit distinct substitution signatures which may lend themselves as potential biomarkers for risk stratification. Our findings portray the extensive diversification of GCT tissues and genetic subclones as randomly distributed, while identifying overarching transcriptional and genomic features.
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Affiliation(s)
- Thomas R W Oliver
- Wellcome Sanger Institute, Hinxton, UK
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | | | | | | | - Naser Ansari-Pour
- Big Data Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Stefan C Dentro
- Wellcome Sanger Institute, Hinxton, UK
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, UK
| | | | | | | | | | | | | | - Mathijs A Sanders
- Wellcome Sanger Institute, Hinxton, UK
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | | | | | - Thomas J Mitchell
- Wellcome Sanger Institute, Hinxton, UK
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Isidro Cortes-Ciriano
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, UK
| | - Anne Y Warren
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - David C Wedge
- Big Data Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Manchester Cancer Research Centre, Division of Cancer Sciences, University of Manchester, Manchester, UK
| | - Rakesh Heer
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
- Newcastle Urology, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Nicholas Coleman
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Matthew J Murray
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Department of Pathology, University of Cambridge, Cambridge, UK
| | | | | | - Sam Behjati
- Wellcome Sanger Institute, Hinxton, UK.
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
- Department of Paediatrics, University of Cambridge, Cambridge, UK.
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15
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Takahashi N, Hatakeyama K, Nagashima T, Ohshima K, Urakami K, Yamaguchi K, Hirashima Y. Characterization of rare histological subtypes of ovarian cancer based on molecular profiling. Cancer Med 2022; 12:387-395. [PMID: 35676859 PMCID: PMC9844652 DOI: 10.1002/cam4.4927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/08/2022] [Accepted: 05/24/2022] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVE Pan-cancer analysis across The Cancer Genome Atlas has revealed the molecular profiles of major types of carcinomas. High-grade serous carcinomas (HGSCs) have been characterized; however, in ovarian cancer, the profile of carcinoma with minor histopathological changes remains unclear. This study aimed to perform the molecular profiling of rare malignant ovarian tumors, including non-epithelial tumors (NETs; germ cell tumors and sex cord tumors) and clear cell carcinoma (CCC), to determine how they differ from the major HGSCs. METHODS Sixty-nine malignant ovarian tumors surgically resected at the Shizuoka Cancer Center between January 2014 and March 2019 were classified based on their histopathological types. The germline and somatic mutations in these carcinomas, including NETs, were determined using next-generation sequencing. Gene expression analysis was performed to investigate the major pathways of drug resistance, which is a characteristic of CCC. RESULTS NETs harbored copy-neutral loss of heterozygosity, accompanied by a high homologous recombination deficiency score; germline mutations of PALB2 and BARD1 were identified in two patients with NET. In chemoresistant CCC, the epithelial-mesenchymal transition pathway was activated regardless of ABC transporter expression. CONCLUSION This study revealed some genomic characteristics of rare malignant ovarian tumors, including NETs and CCC.
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Affiliation(s)
| | - Keiichi Hatakeyama
- Medical Genetics DivisionShizuoka Cancer Center Research InstituteSunto‐gunShizuokaJapan
| | - Takeshi Nagashima
- Cancer Diagnostics Research DivisionShizuoka Cancer Center Research InstituteSunto‐gunShizuokaJapan,SRL Inc.Shinjuku‐kuTokyoJapan
| | - Keiichi Ohshima
- Medical Genetics DivisionShizuoka Cancer Center Research InstituteSunto‐gunShizuokaJapan
| | - Kenichi Urakami
- Cancer Diagnostics Research DivisionShizuoka Cancer Center Research InstituteSunto‐gunShizuokaJapan
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16
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Abstract
PURPOSE OF REVIEW Ovarian cancer (OC) is a heterogeneous disease and a mounting body of evidence shows that a 'one-size-fits-all' approach is obsolete. Differences in epidemiology, tumor biology, genetic profiles and treatment responses of these different types necessitate a tumor and patient-specific approach. Ninety percentage consists of epithelial OC with 70% being high-grade serous OC. The other rarer subtypes are low-grade serous (5%), clear cell (12%), endometrioid (11%) and mucinous carcinoma (3%). The remaining 10% are nonepithelial rare OCs: germ cell (3%) and sex-cord stromal tumors (7%). RECENT FINDINGS Over the past few decades, the 5-year survival rates have only improved modestly, therefore novel therapies are urgently needed. Recently, immunotherapy has been introduced into clinical practice in a number of solid tumors. Although preclinical data confirm the presence of an immunogenic microenvironment in a number of ovarian tumor types, no single-agent immune checkpoint inhibitor has been approved hitherto. Identifying suitable treatment combinations, adequate patient selection and thus correct implementation of immunotherapy remain major challenges. SUMMARY In this review, we focus on the rationale of incorporating immune therapy in rare OC, we summarize the recent developments with preclinical data and results of clinical trials, with particular focus on rare ovarian histological subtypes.
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Affiliation(s)
- Tina Laga
- Division of Gynecological Oncology, Department of Gynecology and Obstetrics and Leuven Cancer Institute, University Hospitals Leuven, Leuven, Belgium
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17
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Abstract
Mesonephric-like adenocarcinomas (MLA) are rare neoplasms arising in the uterine corpus and ovary which have been added to the recent 2020 World Health Organization Classification of Female Genital Tumors. They have similar morphology and immunophenotype and exhibit molecular aberrations similar to cervical mesonephric adenocarcinomas. It is debated as to whether they are of mesonephric or Mullerian origin. We describe the clinical, pathologic, immunohistochemical, and molecular features of 5 cases of extrauterine mesonephric-like proliferations (4 ovary, 1 extraovarian), all with novel and hitherto unreported features. These include an origin of MLA in extraovarian endometriosis, an association of ovarian MLA with high-grade serous carcinoma, mixed germ cell tumor and mature teratoma, and a borderline ovarian endometrioid tumor exhibiting mesonephric differentiation. Four of the cases exhibited a KRAS variant and 3 also a PIK3CA variant. In reporting these cases, we expand on the published tumor types associated with MLA and report for the first time a borderline tumor exhibiting mesonephric differentiation. We show the value of molecular testing in helping to confirm a mesonephric-like lesion and in determining the relationship between the different neoplastic components. We provide further evidence for a Mullerian origin, rather than a true mesonephric origin, in some of these cases. We also speculate that in the 2 cases associated with germ cell neoplasms, the MLA arose out of the germ cell tumor.
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18
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Underwood JS, Ours C, Burns RC, Ferguson MJ. Immature teratoma in an adolescent with Proteus syndrome: A novel association. Clin Case Rep 2021; 9:e04143. [PMID: 34026175 PMCID: PMC8136448 DOI: 10.1002/ccr3.4143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/07/2021] [Accepted: 03/19/2021] [Indexed: 11/12/2022] Open
Abstract
Proteus syndrome (PS) is a complex disorder characterized by variable clinical findings of overgrowth and tumor susceptibility. This report presents the first known association between PS and an ovarian germ cell tumor in an adolescent with immature teratoma. A review of the diagnosis of PS and associated tumors is included.
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Affiliation(s)
- John S. Underwood
- Departments of Internal Medicine and PediatricsIndiana University School of MedicineIndianapolisINUSA
| | - Christopher Ours
- National Human Genome Research InstituteNational Institutes of HealthBethesdaMDUSA
| | - R. Cartland Burns
- Department of SurgeryIndiana University School of MedicineIndianapolisINUSA
| | - Michael J. Ferguson
- Department of PediatricsIndiana University School of MedicineIndianapolisINUSA
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19
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Nicholls PK, Page DC. Germ cell determination and the developmental origin of germ cell tumors. Development 2021; 148:239824. [PMID: 33913479 DOI: 10.1242/dev.198150] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In each generation, the germline is tasked with producing somatic lineages that form the body, and segregating a population of cells for gametogenesis. During animal development, when do cells of the germline irreversibly commit to producing gametes? Integrating findings from diverse species, we conclude that the final commitment of the germline to gametogenesis - the process of germ cell determination - occurs after primordial germ cells (PGCs) colonize the gonads. Combining this understanding with medical findings, we present a model whereby germ cell tumors arise from cells that failed to undertake germ cell determination, regardless of their having colonized the gonads. We propose that the diversity of cell types present in these tumors reflects the broad developmental potential of migratory PGCs.
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Affiliation(s)
- Peter K Nicholls
- Whitehead Institute, 455 Main Street, Cambridge, MA 02142, USA.,Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, UK
| | - David C Page
- Whitehead Institute, 455 Main Street, Cambridge, MA 02142, USA.,Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Howard Hughes Medical Institute, Whitehead Institute, Cambridge, MA 02142, USA
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20
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Chen J, Li Y, Wu J, Liu Y, Kang S. Whole-exome sequencing reveals potential germline and somatic mutations in 60 malignant ovarian germ cell tumors†. Biol Reprod 2021; 105:164-178. [PMID: 33739378 DOI: 10.1093/biolre/ioab052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/05/2021] [Accepted: 03/16/2021] [Indexed: 11/13/2022] Open
Abstract
Malignant ovarian germ cell tumors (MOGCTs) are rare and heterogeneous ovary tumors. We aimed to identify potential germline mutations and somatic mutations in MOGCTs by whole-exome sequencing. The peripheral blood and tumor samples from these patients were used to identify germline mutations and somatic mutations, respectively. For those genes with copy number alterations (deletion and duplication region), functional annotation was performed. Immunohistochemistry was performed to evaluate the expression of mutated genes corresponding to CNA deletion region and duplication region. In peripheral blood, copy number loss and gain were mostly found in yolk sac tumors (YSTs). Moreover, POU5F1 was the most significant mutated gene with mutation frequency >10% in both CNA deletion and duplication region. In addition, strong cytoplasm staining of POU5F1 (corresponding to CNA deletion region and duplication region) was found in two YST and nuclear staining in two dysgerminomas tumor samples. Genes corresponding to CNA deletion region were significantly enriched in the signaling pathway of regulating pluripotency of stem cells. In addition, genes corresponding to CNA duplication region were significantly enriched in the signaling pathways of RIG-I (DExD/H-box helicase 58)-like receptor, Toll-like receptor and nuclear factor (NF)-kappa. Keratin 4 (KRT4), ribosomal protein L14 (RPL14), proprotein convertase subtilisin/kexin type 6 (PCSK6), poly(A)-binding protein cytoplasmic 3 (PABPC3), and sterile alpha and TIR motif containing 1 (SARM1) mutations were detected in both peripheral blood and tumor samples. Identification of potential germline mutations and somatic mutations in MOGCTs may provide a new field in understanding the genetic feature of the rare biological tumor type in the ovary.
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Affiliation(s)
- Juan Chen
- Department of Obstetrics and Gynaecology, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Hebei, China
| | - Yan Li
- Department of Molecular Biology, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Hebei, China
| | - Jianlei Wu
- Department of Obstetrics and Gynaecology, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Hebei, China
| | - Yakun Liu
- Department of Obstetrics and Gynaecology, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Hebei, China
| | - Shan Kang
- Department of Obstetrics and Gynaecology, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor Hospital, Hebei, China
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21
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Guo H, Chen H, Wang W, Chen L. Clinicopathological Features, Prognostic Factors, Survival Trends, and Treatment of Malignant Ovarian Germ Cell Tumors: A SEER Database Analysis. Oncol Res Treat 2021; 44:145-153. [PMID: 33706324 DOI: 10.1159/000509189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/05/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the clinicopathological prognostic factors of malignant ovarian germ cell tumors (MOGCT) and evaluate the survival trends of MOGCT by histotype. METHODS We extracted data on 1,963 MOGCT cases diagnosed between 2000 and 2014 from the Surveillance, Epidemiology, and End Results (SEER) database and the histological classification of MOGCT, including 5 categories: dysgerminoma, embryonal carcinoma (EC), yolk sac tumor, malignant teratoma, and mixed germ cell tumor. We examined overall and disease-specific survival of the 5 histological types. Kaplan-Meier and Cox proportional hazards regression models were used to estimate survival curves and prognostic factors. We also estimated survival curves of MOGCT according to different treatments. RESULTS There was a significant difference in prognosis among different histological classifications. Age, histotype, grade, SEER stage, and surgery were independent prognostic factors for survival of patients with MOGCT. For all histotypes, 1-, 3-, and 5-year survival rate estimates were >85%, except for EC, which had the worst outcomes at 1 year (55.6%), 3 years (44.4%), and 5 years (33.3%). In the distant SEER stage, both chemotherapy and surgery were associated with improved survival outcomes compared with surgery- and chemotherapy-only groups. CONCLUSIONS Dysgerminoma patients had the most favorable outcomes, whereas EC patients had the worst survival. A young age, low grade, and surgery were all significant predictors for improved survival. In contrast, a distant SEER stage was a risk factor for poor survival. Chemotherapy combined with surgery contributed to longer survival times of patients with MOGCT in the distant SEER stage.
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Affiliation(s)
- Hualei Guo
- Department of Pathology, Hangzhou Women's Hospital, Hangzhou, China,
| | - Hao Chen
- Department of Pathology, Hangzhou Women's Hospital, Hangzhou, China
| | - Wenhui Wang
- Department of Pathology, Hangzhou Women's Hospital, Hangzhou, China
| | - Lingna Chen
- Department of Gynecology, Hangzhou Women's Hospital, Hangzhou, China
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Gawrychowska A, Iżycka-Świeszewska E, Lipska-Ziętkiewicz BS, Kuleszo D, Bautembach-Minkowska J, Łosin M, Stefanowicz J. Dysgerminoma with a Somatic Exon 17 KIT Mutation and SHH Pathway Activation in a Girl with Turner Syndrome. Diagnostics (Basel) 2020; 10:diagnostics10121067. [PMID: 33321690 PMCID: PMC7763800 DOI: 10.3390/diagnostics10121067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/29/2020] [Accepted: 12/04/2020] [Indexed: 11/23/2022] Open
Abstract
This article reports a case of a 7-year-old girl with Turner syndrome, treated with growth hormone (GH), who developed ovarian dysgerminoma. The patient karyotype was mosaic for chromosome Xq deletion: 46,X,del(X)(q22)/45,X. No Y chromosome sequences were present. Molecular studies revealed the presence of a driving mutation in exon 17 of the KIT gene in the neoplastic tissue, as well as Sonic-hedgehog (SHH) pathway activation at the protein level. The patient responded well to chemotherapy and remained in complete remission. This is the first case of dysgerminoma in a Turner syndrome patient with such oncogenic pathway.
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Affiliation(s)
- Ada Gawrychowska
- Department of Paediatrics, Haematology and Oncology, Clinical University Centre, 7 Debinki Street, 80-952 Gdansk, Poland;
| | - Ewa Iżycka-Świeszewska
- Department of Pathology and Neuropathology, Faculty of Health Sciences, Medical University of Gdansk, 3a Maria Sklodowska-Curie Street, 80-210 Gdansk, Poland;
| | - Beata S. Lipska-Ziętkiewicz
- Centre for Rare Diseases, Medical University of Gdansk, 7 Debinki Street, 80-952 Gdansk, Poland;
- Clinical Genetics Unit, Department of Biology and Medical Genetics, Faculty of Medicine, Medical University of Gdansk, 1 Debinki Street, 80-211 Gdansk, Poland
| | - Dominika Kuleszo
- Department of Biology and Medical Genetics, Faculty of Medicine, Medical University of Gdansk, 1 Debinki Street, 80-211 Gdansk, Poland;
| | - Joanna Bautembach-Minkowska
- Department of Paediatrics, Diabetology and Endocrinology, Clinical University Centre, 7 Debinki Street, 80-952 Gdansk, Poland;
| | - Marcin Łosin
- Department of Surgery and Urology for Children and Adolescents, Faculty of Medicine, Medical University of Gdansk, 1-6 Nowe Ogrody Street, 80-803 Gdansk, Poland;
| | - Joanna Stefanowicz
- Department of Paediatrics, Haematology and Oncology, Clinical University Centre, 7 Debinki Street, 80-952 Gdansk, Poland;
- Department of Paediatrics, Haematology and Oncology, Faculty of Medicine, Medical University of Gdansk, 7 Debinki Street, 80-210 Gdansk, Poland
- Faculty of Health Sciences, Medical University of Gdansk, 3a Maria Sklodowska-Curie Street, 80-210 Gdansk, Poland
- Correspondence: ; Tel.: +48-58-349-2808
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23
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Molecular characterization of uterine and ovarian tumors with mixed epithelial and germ cell features confirms frequent somatic derivation. Mod Pathol 2020; 33:1989-2000. [PMID: 32404953 DOI: 10.1038/s41379-020-0548-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 12/27/2022]
Abstract
Ovarian germ cell tumors, including yolk sac tumors, are most commonly diagnosed in children and young women. Most so-called yolk sac tumors reported in women >35 years old have been associated with an epithelial proliferation (endometriosis or carcinoma). Here, we describe eight cases clinically diagnosed as uterine or ovarian germ cell tumors in women >35 years old. In addition to routine morphologic examination and immunohistochemical evaluation, we present data from targeted next-generation sequencing (NGS) and isochromosome (12p) fluorescence in situ hybridization (FISH). We identified two groups of tumors with mixed germ cell and epithelial features: (1) tumors with background endometriosis and endometrioid carcinoma-like mutations (PTEN, PIK3CA, FGFR2, and CTNNB1), and (2) high-grade morphology, presumptive presence of isochromosome (12p) by FISH, and TP53 or PIK3CA mutations. These findings support the notion that the "germ cell tumor" component of these tumors is often somatically derived. Two tumors in our cohort were from premenopausal women; one showed no detectable mutations by NGS (suggestive of germ cell derivation), whereas the other showed PIK3CA, PTEN, and CTNNB1 mutations (suggestive of somatic derivation). Accurate classification of these tumors is likely important for selection of appropriate chemotherapy.
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24
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Van Bockstal MR, Augusto D. Stemness in high-grade serous carcinoma of tubo-ovarian origin causes multiple immunohistochemical pitfalls: a case report. J Clin Pathol 2020; 73:845-846. [PMID: 32753402 DOI: 10.1136/jclinpath-2020-206559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/16/2020] [Accepted: 07/22/2020] [Indexed: 11/04/2022]
Affiliation(s)
- Mieke R Van Bockstal
- Department of Pathology, Cliniques universitaires Saint-Luc, Woluwé-Saint-Lambert, Belgium .,Laboratory of Experimental Cancer Research, Department of Human Structure and Repair, Ghent University, Gent, Belgium
| | - David Augusto
- Department of Pathology, Site de Jolimont, Centres Hospitaliers Jolimont, Haine-Saint-Paul, Belgium
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25
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Mata DA, Yang SR, Ferguson DC, Liu Y, Sharma R, Benhamida JK, Al-Ahmadie HA, Chakravarty D, Solit DB, Tickoo SK, Gupta S, Arcila ME, Ladanyi M, Feldman DR, Reuter VE, Vanderbilt CM. RAS/MAPK Pathway Driver Alterations Are Significantly Associated With Oncogenic KIT Mutations in Germ-cell Tumors. Urology 2020; 144:111-116. [PMID: 32721511 DOI: 10.1016/j.urology.2020.07.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To report the mutational profile and clinical outcomes of a cohort of patients with KIT-mutant seminomas and nonseminomatous germ-cell tumors (SGCT/NSGCTs). PATIENTS AND METHODS Retrospective cohort study of all patients with KIT-mutant GCTs sequenced at Memorial Sloan Kettering between March 2014 and March 2020. Tumors were assessed with MSK-IMPACT, a DNA next-generation sequencing assay for targeted sequencing of up to 468 key cancer genes. RESULTS Among 568 patients with GCTs, 8.1% had somatic KIT mutations, including 28 seminomas and 18 mixed/NSGCTs. Exons 17 (67.3%), 11 (22.4%), and 13 (6.1%) were most commonly affected. KIT-mutant cases were enriched for oncogenic RAS/MAPK pathway alterations compared to KIT-wildtype cases (34.8% vs 19.2%, P = .02). Among KIT-mutant cases, concurrent mutations were noted in KRAS (21.7%), RRAS2 (11.8%), CBL (6.5%), NRAS (4.3%), MAP2K1 (2.2%), and RAC1 (2.2%). Mutations in KRAS, RRAS2, and NRAS were mutually exclusive. In all, 73.9% of patients developed metastases and 95.7% received chemotherapy. No patients received KIT-directed tyrosine kinase inhibitors (TKIs). Classification as a NSGCT rather than a SGCT was associated with an increased risk of death (hazard ratio 9.1, 95% confidence interval 1.1-78.4, P = .04) while the presence of a concurrent RAS/MAPK pathway alteration was not (hazard ratio 0.8, 95% confidence interval 0.1-4.3, P = .76). CONCLUSION Mitogenic driver alterations can co-occur with activating KIT mutations, which may explain the lack of efficacy of KIT-directed TKIs in prior trials. Novel KIT-directed TKIs that target exon 17 mutations may benefit chemotherapy-refractory patients with KIT-mutant GCTs without RAS/MAPK alterations. Dual MEK/KIT inhibitor therapy in KIT-mutant GCTs with concurrent RAS/MAPK alterations could also be a plausible therapeutic strategy.
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Affiliation(s)
- Douglas A Mata
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY.
| | - Soo-Ryum Yang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Donna C Ferguson
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ying Liu
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Rohit Sharma
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jamal K Benhamida
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Hikmat A Al-Ahmadie
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Debyani Chakravarty
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - David B Solit
- Department of Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Satish K Tickoo
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Sounak Gupta
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Maria E Arcila
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Marc Ladanyi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Darren R Feldman
- Department of Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Victor E Reuter
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Chad M Vanderbilt
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY.
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26
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Heskett MB, Sanborn JZ, Boniface C, Goode B, Chapman J, Garg K, Rabban JT, Zaloudek C, Benz SC, Spellman PT, Solomon DA, Cho RJ. Multiregion exome sequencing of ovarian immature teratomas reveals 2N near-diploid genomes, paucity of somatic mutations, and extensive allelic imbalances shared across mature, immature, and disseminated components. Mod Pathol 2020; 33:1193-1206. [PMID: 31911616 PMCID: PMC7286805 DOI: 10.1038/s41379-019-0446-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/30/2019] [Accepted: 12/15/2019] [Indexed: 01/31/2023]
Abstract
Immature teratoma is a subtype of malignant germ cell tumor of the ovary that occurs most commonly in the first three decades of life, frequently with bilateral ovarian disease. Despite being the second most common malignant germ cell tumor of the ovary, little is known about its genetic underpinnings. Here we performed multiregion whole-exome sequencing to interrogate the genetic zygosity, clonal relationship, DNA copy number, and mutational status of 52 pathologically distinct tumor components from ten females with ovarian immature teratomas, with bilateral tumors present in five cases and peritoneal dissemination in seven cases. We found that ovarian immature teratomas are genetically characterized by 2N near-diploid genomes with extensive loss of heterozygosity and an absence of genes harboring recurrent somatic mutations or known oncogenic variants. All components within a single ovarian tumor (immature teratoma, mature teratoma with different histologic patterns of differentiation, and yolk sac tumor) were found to harbor an identical pattern of loss of heterozygosity across the genome, indicating a shared clonal origin. In contrast, the four analyzed bilateral teratomas showed distinct patterns of zygosity changes in the right versus left sided tumors, indicating independent clonal origins. All disseminated teratoma components within the peritoneum (including gliomatosis peritonei) shared a clonal pattern of loss of heterozygosity with either the right or left primary ovarian tumor. The observed genomic loss of heterozygosity patterns indicate that diverse meiotic errors contribute to the formation of ovarian immature teratomas, with 11 out of the 15 genetically distinct clones determined to result from nondisjunction errors during meiosis I or II. Overall, these findings suggest that copy-neutral loss of heterozygosity resulting from meiotic abnormalities may be sufficient to generate ovarian immature teratomas from germ cells.
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Affiliation(s)
- Michael B. Heskett
- Department of Molecular & Medical Genetics, Oregon Health & Science University, Portland, OR, USA
| | | | - Christopher Boniface
- Department of Molecular & Medical Genetics, Oregon Health & Science University, Portland, OR, USA
| | - Benjamin Goode
- Department of Pathology, University of California, San Francisco, CA, USA
| | - Jocelyn Chapman
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco, CA, USA
| | - Karuna Garg
- Department of Pathology, University of California, San Francisco, CA, USA
| | - Joseph T. Rabban
- Department of Pathology, University of California, San Francisco, CA, USA
| | - Charles Zaloudek
- Department of Pathology, University of California, San Francisco, CA, USA
| | | | - Paul T. Spellman
- Department of Molecular & Medical Genetics, Oregon Health & Science University, Portland, OR, USA
| | - David A. Solomon
- Department of Pathology, University of California, San Francisco, CA, USA,To whom correspondence should be addressed: David A. Solomon, MD, PhD, Department of Pathology, University of California, San Francisco, 513 Parnassus Ave, Health Sciences West 451, San Francisco, CA 94143, United States, Ph: (415) 514-9761, , Raymond J. Cho, MD, PhD, Department of Dermatology, University of California, San Francisco, 1701 Divisadero Street, 3rd floor, San Francisco, CA 94115, United States, Ph: (415) 650-5208,
| | - Raymond J. Cho
- Department of Dermatology, University of California, San Francisco, CA, USA,To whom correspondence should be addressed: David A. Solomon, MD, PhD, Department of Pathology, University of California, San Francisco, 513 Parnassus Ave, Health Sciences West 451, San Francisco, CA 94143, United States, Ph: (415) 514-9761, , Raymond J. Cho, MD, PhD, Department of Dermatology, University of California, San Francisco, 1701 Divisadero Street, 3rd floor, San Francisco, CA 94115, United States, Ph: (415) 650-5208,
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27
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Molecular Pathways and Targeted Therapies for Malignant Ovarian Germ Cell Tumors and Sex Cord-Stromal Tumors: A Contemporary Review. Cancers (Basel) 2020; 12:cancers12061398. [PMID: 32485873 PMCID: PMC7353025 DOI: 10.3390/cancers12061398] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/13/2020] [Accepted: 05/20/2020] [Indexed: 12/13/2022] Open
Abstract
Non-epithelial ovarian tumors are heterogeneous and account for approximately 10% of ovarian malignancies. The most common subtypes of non-epithelial ovarian tumors arise from germ cells or sex cord and stromal cells of the gonads. These tumors are usually detected at an early stage, and management includes surgical staging and debulking. When indicated for advanced disease, most respond to chemotherapy; however, options for patients with refractory disease are limited, and regimens can be associated with significant toxicities, including permanent organ dysfunction, secondary malignancies, and death. Targeted therapies that potentially decrease chemotherapy-related adverse effects and improve outcomes for patients with chemotherapy-refractory disease are needed. Here, we review the molecular landscape of non-epithelial ovarian tumors for the purpose of informing rational clinical trial design. Recent genomic discoveries have uncovered recurring somatic alterations and germline mutations in subtypes of non-epithelial ovarian tumors. Though there is a paucity of efficacy data on targeted therapies, such as kinase inhibitors, antibody–drug conjugates, immunotherapy, and hormonal therapy, exceptional responses to some compounds have been reported. The rarity and complexity of non-epithelial ovarian tumors warrant collaboration and efficient clinical trial design, including high-quality molecular characterization, to guide future efforts.
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28
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Boussios S, Mikropoulos C, Samartzis E, Karihtala P, Moschetta M, Sheriff M, Karathanasi A, Sadauskaite A, Rassy E, Pavlidis N. Wise Management of Ovarian Cancer: On the Cutting Edge. J Pers Med 2020; 10:E41. [PMID: 32455595 PMCID: PMC7354604 DOI: 10.3390/jpm10020041] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/13/2020] [Accepted: 05/19/2020] [Indexed: 12/11/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is the fifth leading cause of cancer mortality among women. Two-thirds of patients present at advanced stage at diagnosis, and the estimated 5 year survival rate is 20-40%. This heterogeneous group of malignancies has distinguishable etiology and molecular biology. Initially, single-gene sequencing was performed to identify germline DNA variations associated with EOC. However, hereditary EOC syndrome can be explained by germline pathogenic variants (gPVs) in several genes. In this regard, next-generation sequencing (NGS) changed clinical diagnostic testing, allowing assessment of multiple genes simultaneously in a faster and cheaper manner than sequential single gene analysis. As we move into the era of personalized medicine, there is evidence that poly (ADP-ribose) polymerase (PARP) inhibitors exploit homologous recombination (HR) deficiency, especially in breast cancer gene 1 and 2 (BRCA1/2) mutation carriers. Furthermore, extensive preclinical data supported the development of aurora kinase (AURK) inhibitors in specific tumor types, including EOC. Their efficacy may be optimized in combination with chemotherapeutic or other molecular agents. The efficacy of metformin in ovarian cancer prevention is under investigation. Certain mutations, such as ARID1A mutations, and alterations in the phosphatidylinositol 3-kinase (PI3K)/AKT/mTOR pathway, which are specific in ovarian clear cell carcinoma (OCCC) and endometrioid ovarian carcinoma (EnOC), may offer additional therapeutic targets in these clinical entities. Malignant ovarian germ cell tumors (MOGCTs) are rare and randomized trials are extremely challenging for the improvement of the existing management and development of novel strategies. This review attempts to offer an overview of the main aspects of ovarian cancer, catapulted from the molecular mechanisms to therapeutic considerations.
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Affiliation(s)
- Stergios Boussios
- Medway NHS Foundation Trust, Windmill Road, Gillingham, Kent ME7 5NY, UK; (M.S.); (A.K.); (A.S.)
- AELIA Organization, 9th Km Thessaloniki—Thermi, 57001 Thessaloniki, Greece
| | - Christos Mikropoulos
- St Luke’s Cancer Center, Royal Surrey County Hospital, Egerton Rd, Guildford GU2 7XX, UK;
| | - Eleftherios Samartzis
- Division of Gynecology, University Hospital Zurich, Frauenklinikstrasse 10, CH-8091 Zürich, Switzerland;
| | - Peeter Karihtala
- Department of Oncology, University of Helsinki and Helsinki University Hospital Comprehensive Cancer Center, P.O. Box 100, FI-00029 Helsinki, Finland;
| | - Michele Moschetta
- Cambridge University Hospitals NHS Foundation Trust, Hills Rd, Cambridge CB2 0QQ, UK;
| | - Matin Sheriff
- Medway NHS Foundation Trust, Windmill Road, Gillingham, Kent ME7 5NY, UK; (M.S.); (A.K.); (A.S.)
| | - Afroditi Karathanasi
- Medway NHS Foundation Trust, Windmill Road, Gillingham, Kent ME7 5NY, UK; (M.S.); (A.K.); (A.S.)
| | - Agne Sadauskaite
- Medway NHS Foundation Trust, Windmill Road, Gillingham, Kent ME7 5NY, UK; (M.S.); (A.K.); (A.S.)
| | - Elie Rassy
- Department of Cancer Medicine, Gustave Roussy Institut, 94805 Villejuif, France;
- Department of Hematology-Oncology, Hotel Dieu de France University Hospital, Faculty of Medicine, Saint Joseph University, Beirut 166830, Lebanon
| | - Nicholas Pavlidis
- Medical School, University of Ioannina, Stavros Niarchou Avenue, 45110 Ioannina, Greece;
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29
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Berney DM, Stoneham S, Arora R, Shamash J, Lockley M. Ovarian germ cell tumour classification: views from the testis. Histopathology 2020; 76:25-36. [PMID: 31846529 DOI: 10.1111/his.14016] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/06/2019] [Indexed: 12/14/2022]
Abstract
The classification of ovarian germ cell tumours has remained unchanged for many years, while there have been considerable changes in the testicular classification. In recent years there has been concern about the overtreatment of clinical stage 1 testicular germ cell tumours with increasing use of surveillance for low-risk disease. We outline here the current classification of germ cell tumours of the ovary with particular regard to treatment and outcome and highlight some areas which may cause confusion, particularly pertaining to immature teratomas and mixed germ cell tumours. We suggest that some minor changes to the classification, evidenced by a recent retrospective series by some of the authors, may lead to less adjuvant chemotherapy for immature teratomas and may obviate the need for the grading of immature teratomas, by aligning with testicular experience in pure post-pubertal teratomas. Adoption of this will require retrospective and prospective re-evaluation, but may avoid long-term patient morbidity.
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Affiliation(s)
- Daniel M Berney
- Centre for Molecular Oncology, Barts Cancer Institute, Charterhouse Square, Queen Mary University of London, London, UK
| | - Sara Stoneham
- Department of Paediatric and Adolescent Haematology and Oncology, University College Hospitals London, London, UK
| | - Rupali Arora
- Department of Histopathology, University College Hospitals London, London, UK
| | - Jonathan Shamash
- Department of Medical Oncology, Bartshealth NHS Trust, St Bartholomew's Hospital, London, UK
| | - Michelle Lockley
- Centre for Molecular Oncology, Barts Cancer Institute, Charterhouse Square, Queen Mary University of London, London, UK
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30
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PIK3CA Gene Mutations in Solid Malignancies: Association with Clinicopathological Parameters and Prognosis. Cancers (Basel) 2019; 12:cancers12010093. [PMID: 31905960 PMCID: PMC7017171 DOI: 10.3390/cancers12010093] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 02/07/2023] Open
Abstract
Phosphoinositide kinases (PIKs) are a group of lipid kinases that are important upstream activators of various significant signaling pathways. Hyperactivation of the PI3K/AKT/mTOR pathways—either via mutations or genomic amplification—confers key oncogenic activity, essential for the development and progression of several solid tumors. Alterations in the PIK3CA gene are associated with poor prognosis of solid malignancies. Although the literature reports contradictory prognostic values of PIK3CA in aggressive cancers, most of the available data highlight the important role of PIK3CA mutation in mediating tumorigenesis via increased signaling of the PI3K/AKT/mTOR survival pathway. Several inhibitors of PI3K/AKT/mTOR pathways are investigated as potential therapeutic options in solid malignancies. This article reviews the role of PIK3CA mutations and inhibitors of PI3K/AKT/mTOR pathways in major cancer types and examines its association with clinicopathological parameters and prognosis.
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31
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Yu HL, Ma XD, Tong JF, Li JQ, Guan XJ, Yang JH. WTAP is a prognostic marker of high-grade serous ovarian cancer and regulates the progression of ovarian cancer cells. Onco Targets Ther 2019; 12:6191-6201. [PMID: 31496724 PMCID: PMC6689666 DOI: 10.2147/ott.s205730] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/27/2019] [Indexed: 01/09/2023] Open
Abstract
Background The Wilms' tumor suppressor WT1 is reported to work in a range of physiological processes at both transcriptional and posttranscriptional level. WT1-associating protein (WTAP), a nuclear protein co-localized with splicing factors, also plays a vital role in cellular function and cancer progression. However, little is known about the role of WTAP in ovarian cancer and the underlying mechanism. Materials and methods To evaluate the expression of WTAP, multiple means were applied in clinical tissues, including immunohistochemistry, quantitative reverse transcriptase PCR (qRT-PCR), and Western blot. Two representative ovarian cancer cell lines (3AO and SKOV3) were used to assess the malignant influence of WTAP on proliferation, apoptosis, and migration. To explore its function, WTAP was additionally down-regulated by lentivirus. Results High expression of WTAP in high-grade serous ovarian carcinoma (HGSOC) predicted a shorter overall survival (P<0.01). Furthermore, WTAP expression was higher in HGSOC, compared with that in normal ovary group (P<0.01), benign ovarian tumor group (P<0.01), and non-HGSOC group (P<0.05). In HGSOC, high expression of WTAP was significantly related with the lymph node metastasis (P<0.05). In ovarian cancer cell lines, cell proliferation and migration were considerably reduced after WTAP was down-regulated, while apoptotic rate was increased. Moreover, the effect of WTAP in 3AO and SKOV3 might be relevant with MAPK and AKT signaling pathways. Conclusion WTAP is highly expressed in HGSOC, and indicates a worse survival outcome. Therefore, it is highly possible that WTAP has a prognostic implication in the patients of HGSOC. In addition, WTAP down-regulation also plays a tumor suppressor role in 3AO and SKOV3 cell lines.
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Affiliation(s)
- Hai-Lan Yu
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, People's Republic of China
| | - Xu-Dong Ma
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, People's Republic of China
| | - Jin-Fei Tong
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, People's Republic of China
| | - Jian-Qiong Li
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, People's Republic of China
| | - Xiao-Jing Guan
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, People's Republic of China
| | - Jian-Hua Yang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, People's Republic of China
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32
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Tullius BP, Shankar SP, Cole S, Triano V, Aradhya S, Huang EC, Sanchez T, Pawar A. Novel heterozygous mutation in the PTEN gene associated with ovarian germ cell tumor complicated by growing teratoma syndrome and overgrowth in a two-year-old female. Pediatr Blood Cancer 2019; 66:e27788. [PMID: 31038288 DOI: 10.1002/pbc.27788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 04/11/2019] [Accepted: 04/15/2019] [Indexed: 11/10/2022]
Abstract
Growing teratoma syndrome (GTS) is a condition in which mature teratoma with negative tumor markers arises at the site of a treated malignant germ cell tumor. Pathogenic variants in PTEN have been reported to cause autosomal dominant cancer predisposition syndromes and are associated with germ cell tumors. We report the association of a novel heterozygous pathogenic variant in PTEN and very early onset ovarian germ cell tumor complicated by GTS as well as overgrowth syndrome. This marks the youngest reported patient to have developed GTS following treatment of her primary malignant ovarian germ cell tumor.
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Affiliation(s)
- Brian P Tullius
- Department of Pediatrics, U C Davis Health, Sacramento, California.,Division of Hematology/Oncology/BMT, Nationwide Children's Hospital, Columbus, Ohio
| | - Suma P Shankar
- Department of Pediatrics, U C Davis Health, Sacramento, California
| | - Stacey Cole
- Department of Pediatrics, U C Davis Health, Sacramento, California
| | - Vivien Triano
- Department of Pediatrics, U C Davis Health, Sacramento, California
| | | | - Eric C Huang
- Department of Pathology and Laboratory Medicine, University of California, Davis Medical Center, Sacramento, California
| | - Thomas Sanchez
- Department of Radiology, University of California, Davis Medical Center, Sacramento, California
| | - Anjali Pawar
- Comprehensive Cancer Center, U C Davis Health, Sacramento, California
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33
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Newton C, Murali K, Ahmad A, Hockings H, Graham R, Liberale V, Sarker SJ, Ledermann J, Berney DM, Shamash J, Banerjee S, Stoneham S, Lockley M. A multicentre retrospective cohort study of ovarian germ cell tumours: Evidence for chemotherapy de-escalation and alignment of paediatric and adult practice. Eur J Cancer 2019; 113:19-27. [PMID: 30954883 PMCID: PMC6522056 DOI: 10.1016/j.ejca.2019.03.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/14/2019] [Accepted: 03/02/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Adult guidelines recommend BEP (bleomycin, etoposide, cisplatin) for all ovarian germ cell tumours, causing debilitating toxicities in young patients who will survive long term. Paediatricians successfully reduce toxicities by using lower bleomycin doses and substituting carboplatin for cisplatin, while testicular and paediatric immature teratomas (ITs) are safely managed with surgery alone. AIM The aim was to determine whether reduced-toxicity treatment could rationally be extended to patients older than 18 years. METHODS Multicentre cohort study was carried out in four large UK cancer centres over 12 years. RESULTS One hundred thirty-eight patients were enrolled. Overall survival was 93%, and event-free survival (EFS) was 72%. Neoadjuvant/adjuvant chemotherapy (82% BEP) caused 27 potentially chronic toxicities, and one patient subsequently died from acute lymphoblastic leukaemia. There was no difference in histology, stage or grade in patients ≤/>18 years, and EFS was not different in these age groups (≤18:28% and >18:28%; log-rank P = 0.96). Histological subtype powerfully predicted EFS (log-rank P = 4.9 × 10-7). Neoadjuvant/adjuvant chemotherapy reduced future relapse/progression in dysgerminoma (n = 37, chemo:0% vs. no chemo:20%), yolk sac tumour (n = 23, 26.3% vs.75%) and mixed germ cell tumour (n = 32, 40%vs.70%) but not in IT (n = 42, 33% vs.15%). Additionally, we observed no radiological responses to chemotherapy in ITs, pathological IT grade did not predict EFS (univariate hazard ratio 0.82, 95% confidence interval: 0.57-1.19, P = 0.94) and there were no deaths in this subtype. CONCLUSION Survival was excellent but chemotherapy toxicities were severe, implying significant overtreatment. Our data support the extension of reduced-toxicity, paediatric regimens to adults. Our practice-changing findings that IT was chemotherapy resistant and pathological grade uninformative strongly endorse exclusive surgical management of ovarian ITs at all ages.
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Affiliation(s)
- C Newton
- Barts Health NHS Trust, West Smithfield, London, EC1A 7BE, UK; University College Hospital, 235 Euston Road London, NW1 2BU, UK; University Hospitals Bristol NHS Foundation Trust, Upper Maudlin Street, Bristol, BS2 8HW, UK; University of Bristol, Senate House, Tyndall Avenue, Bristol BS8 1TH, UK
| | - K Murali
- The Royal Marsden Hospital, 203 Fulham Rd, Chelsea, London SW3 6JJ, UK
| | - A Ahmad
- The Wolfson Institute, CRUK Barts Cancer Centre, Queen Mary University London, Charterhouse Square, London EC1M 6BQ, UK; Cancer Intelligence, Cancer Research UK, Angel Building, 407 St John Street, London EC1V 4AD, UK
| | - H Hockings
- Barts Health NHS Trust, West Smithfield, London, EC1A 7BE, UK; Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - R Graham
- University College Hospital, 235 Euston Road London, NW1 2BU, UK
| | - V Liberale
- University College Hospital, 235 Euston Road London, NW1 2BU, UK
| | - S-J Sarker
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK; Research Department of Medical Education, UCL Medical School, Royal Free Campus, Hampstead, London NW3 2PR, UK
| | - J Ledermann
- University College Hospital, 235 Euston Road London, NW1 2BU, UK
| | - D M Berney
- Barts Health NHS Trust, West Smithfield, London, EC1A 7BE, UK; Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - J Shamash
- Barts Health NHS Trust, West Smithfield, London, EC1A 7BE, UK
| | - S Banerjee
- The Royal Marsden Hospital, 203 Fulham Rd, Chelsea, London SW3 6JJ, UK
| | - S Stoneham
- University College Hospital, 235 Euston Road London, NW1 2BU, UK
| | - M Lockley
- Barts Health NHS Trust, West Smithfield, London, EC1A 7BE, UK; University College Hospital, 235 Euston Road London, NW1 2BU, UK; Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK.
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