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Alwosaibai K, Al‑Hujaily E, Alamri S, Ghandorah S, Garson K, Vanderhyden B. PAX2 induces vascular‑like structures in normal ovarian cells and ovarian cancer. Exp Ther Med 2022; 23:412. [PMID: 35601066 PMCID: PMC9117948 DOI: 10.3892/etm.2022.11339] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 03/09/2022] [Indexed: 11/13/2022] Open
Abstract
In adult tissue, the paired box 2 (PAX2) protein is expressed in healthy oviductal, but not normal ovarian surface epithelial cells. PAX2 is expressed in a subset of cases of serous ovarian carcinoma; however, the role of PAX2 in the initiation and progression of ovarian cancer remains unknown. The aim of the present study was to determine the biological effects of PAX2 expression in normal and cancerous epithelial cells. By culturing the normal and cancerous ovarian cells that express PAX2 in 3D culture and staining the cells with vasculogenic mimicry markers such as CD31 and PAS, it was shown that PAX2 overexpression in both normal and cancerous ovarian epithelial cells induced formation of vascular-like structures both in vitro and in vivo. These results indicated a potential role of PAX2 in ovarian cancer progression by increasing the presence of vascular-like structures to promote the supply of nutrients to tumor cells and facilitate cancer cell proliferation and invasion.
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Affiliation(s)
- Kholoud Alwosaibai
- Biomedical Research Department, Research Center, King Fahad Specialist Hospital, Dammam 32253, Saudi Arabia
| | - Ensaf Al‑Hujaily
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Salmah Alamri
- Biomedical Research Department, Research Center, King Fahad Specialist Hospital, Dammam 32253, Saudi Arabia
| | - Salim Ghandorah
- Department of Pathology and Laboratory Medicine, King Fahad Specialist Hospital, Dammam 32253, Saudi Arabia
| | - Kenneth Garson
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Barbara Vanderhyden
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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2
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Yun BS, Won S, Kim JH, Lee N, Kim M, Kim MK, Kim ML, Jung YW, Kim JY, Seong SJ, Shin E. PAX2, PAX8, and PR are correlated with ovarian seromucinous borderline tumor with endometriosis. J Ovarian Res 2022; 15:41. [PMID: 35387670 PMCID: PMC8985320 DOI: 10.1186/s13048-022-00975-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 03/30/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Ovarian "seromucinous carcinoma" has been recently removed in 2020 5th Edition of WHO classification of Female Genital Tumors and is considered as a subtype of endometrioid carcinoma with mucinous differentiation, while "seromucinous borderline tumor" remains and exists as a distinct entity. Both diseases may be considered as no more same lineage. However, ovarian seromucinous borderline tumor (SMBT) is also one of the endometriosis-related neoplasm of ovary similar to endometrioid tumor, featuring that about 50% of ovarian SMBTs combine endometriosis. The present study was aimed to investigate whether the ovarian SMBTs are different in clinical features and molecular patterns, according to the presence of combined endometriosis. RESULTS There were no statistical differences in clinical findings between two groups. There was also no significant difference in pregnancy outcomes and recurrence between two groups. In immunohistochemical patterns, there was a statistically significant difference in PAX2 and PAX8 expression between in ovarian SMBT with or without endometriosis (P = 0.016, P < 0.001). Only a few cases of ovarian SMBT with endometriosis showed expression of PAX2 and conversely, most of the cases showed expression of PAX8. PR positivity was more prominent in ovarian SMBT with endometriosis than without endometriosis (P = 0.018), although there was no difference in positive ER expression. There were no statistical differences in WT1, CK20 and CDX2 expressions between two groups. CONCLUSIONS Ovarian SMBT with endometriosis did not clinically differ from that without endometriosis. However, the molecular patterns were different between two groups and ovarian SMBT with endometriosis is close to endometrioid tumor types unlike SMBT without endometriosis. Further, a direct comparison study between seromucinous borderline tumor and endometrioid borderline tumor is needed with a gene profiling study to prove their relationship.
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Affiliation(s)
- Bo Seong Yun
- Department of Obstetrics and Gynecology, CHA Ilsan Medical Center, CHA University School of Medicine, Goyang, Korea
| | - Seyeon Won
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Ju-Hyun Kim
- Department of Obstetrics and Gynecology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Nara Lee
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Miseon Kim
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Mi Kyoung Kim
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Mi-La Kim
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Yong Wook Jung
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Ji Young Kim
- Department of Pathology, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Seok Ju Seong
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Eunah Shin
- Department of Pathology, Yongin Severance Hospital, Yonsei University College of Medicine, 363, Dongbaekjukjeon-daero, Giheung-gu, Yongin-si, 16995, Gyeonggi-do, Korea.
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3
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Incidence of malignant transformation in the oviductal fimbria in laying hens, a preclinical model of spontaneous ovarian cancer. PLoS One 2021; 16:e0255007. [PMID: 34314463 PMCID: PMC8315513 DOI: 10.1371/journal.pone.0255007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/07/2021] [Indexed: 11/19/2022] Open
Abstract
Ovarian high grade serous carcinoma (HGSC) is a lethal form of ovarian cancer (OVCA). In most cases it is detected at late stages as the symptoms are non-specific during early stages. Emerging information suggests that the oviductal fimbria is a site of origin of ovarian HGSC. Currently available tests cannot detect ovarian HGSC at early stage. The lack of a preclinical model with oviductal fimbria that develops spontaneous ovarian HGSC is a significant barrier to developing an early detection test for this disease. The goal of this study was to examine if the oviductal fimbria in hens is a site of origin of HGSC and whether it expresses several putative markers expressed in ovarian HGSC in patients. A total of 135 laying hens (4 years old) were selected from a flock using transvaginal ultrasound (TVUS) imaging, followed by euthanasia and gross examination for the presence of solid masses and ascites. Histological types of carcinomas were determined by hematoxylin and eosin staining. Expression of WT-1, mutant p53, CA-125, PAX2 and Ki67 in normal or malignant fimbriae or ovaries were examined using immunohistochemistry, immunoblotting and gene expression assays. This study detected tumors in oviductal fimbriae in hens and routine staining revealed ovarian HGSC-like microscopic features in these tumors. These tumors showed similarities to ovarian HGSC in patients in expressing several markers. Compared with normal fimbriae, intensities of expression of WT-1, mutant p53, CA-125, and Ki67 were significantly (P<0.05) higher in fimbrial tumors. In contrast, expression of PAX2 decreased gradually as the tumor progressed to late stages. The patterns of expression of these markers were similar to those in ovarian HGSC patients. Thus, tumors of the oviductal fimbria in hens may offer a preclinical model to study different aspects of spontaneous ovarian HGSC in women including its early detection.
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4
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Romano A, Xanthoulea S, Giacomini E, Delvoux B, Alleva E, Vigano P. Endometriotic cell culture contamination and authenticity: a source of bias in in vitro research? Hum Reprod 2021; 35:364-376. [PMID: 32106286 PMCID: PMC7048714 DOI: 10.1093/humrep/dez266] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 11/06/2019] [Accepted: 11/19/2019] [Indexed: 02/06/2023] Open
Abstract
STUDY QUESTION Are the primary cell cultures and cell lines used in endometriosis research of sufficient quality? SUMMARY ANSWER Primary cells used in endometriosis research lack purity and phenotypic characterisation, and cell lines are not genotypically authenticated. WHAT IS KNOWN ALREADY The poor reproducibility of in vitro research and the lack of authenticity of the cell lines used represent reasons of concern in the field of reproductive biology and endometriosis research. STUDY DESIGN, SIZE, DURATION In the present study, past in vitro research in the field of endometriosis was systematically reviewed to determine whether the appropriate quality controls were considered. In addition, we explored the performance of Paired Box 2 (Pax2) as an endometrium specific marker in endometrial and endometriotic primary cell cultures; we also characterised the most diffused endometriosis cell lines with respect to important markers including the short tandem repeat (STR) profile. PARTICIPANTS/MATERIALS, SETTING, METHODS Literature review part: almost 300 published protocols describing the isolation and creation of primary cell cultures from endometriosis were reviewed. Wet-lab part: primary cells isolated from 13 endometriosis patients were analysed by immunohistochemistry, immunofluorescence and FACS for the expression of Pax2. Cell lines Z11 and Z12, the most diffused endometriosis cell lines, were characterised with respect to the expression of Pax2, steroid hormone receptors and STR profile. MAIN RESULTS AND THE ROLE OF CHANCE From the literature review work, we underscored the lack of sufficient cell purity and phenotypic characterisation of primary cell cultures, which present high risk of contaminations from surrounding non-endometriotic tissues. Past work based on the use of cell lines was reviewed as well, and it emerged that cell line authentication was never performed. In an effort to address these weaknesses for future research, we present data on the performance of Pax2, a suitable marker to exclude ovarian (and other non-endometrial) cell contaminations from primary cell cultures; STR profiles of cell lines Z11 and Z12 were analysed and indicated that the cells were authentic. These profiles are now available for authentication purposes to researchers wishing to perform experiments with these cells. A quality control pipeline to assure sufficient quality of in vitro research in the field of reproductive biology and endometriosis is proposed. We encourage scientists, research institutes, journal reviewers, editors and funding bodies to raise awareness of the problem and adopt appropriate policies to solve it in the future. LARGE-SCALE DATA STR profiles of cell lines Z11 and Z12 are deposited at the Cellosaurus database—web.expasy.org. LIMITATIONS, REASONS FOR CAUTION There may be additional markers suitable to assess cell quality. WIDER IMPLICATIONS OF THE FINDINGS Future in vitro research in endometriosis and the reliability of outcomes can be improved by using the recommendations presented in this study. STUDY FUNDING/COMPETING INTEREST(S) The study was partly financed by the ‘Stichting Fertility Foundation’ (The Netherlands). The authors declare no existing conflict of interest. TRIAL REGISTRATION NUMBER Non-applicable.
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Affiliation(s)
- Andrea Romano
- Obstetrics and Gynaecology Department, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Sofia Xanthoulea
- Obstetrics and Gynaecology Department, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Elisa Giacomini
- Reproductive Sciences Laboratory, Division of Genetics and Cell Biology, IRCCS Ospedale San Raffaele, Milan, 20132, Italy
| | - Bert Delvoux
- Obstetrics and Gynaecology Department, GROW - School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Eugenia Alleva
- Obstetrics and Gynaecology Department, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Paola Vigano
- Reproductive Sciences Laboratory, Division of Genetics and Cell Biology, IRCCS Ospedale San Raffaele, Milan, 20132, Italy
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Malpica A, Euscher ED, Marques-Piubelli ML, Ferrufino-Schmidt MC, Miranda RN, Sams R, Royal RE, Raghav KPS, Fournier KF, Ramalingam P. Malignant Mesothelioma of the Peritoneum in Women: A Clinicopathologic Study of 164 Cases. Am J Surg Pathol 2021; 45:45-58. [PMID: 32769428 DOI: 10.1097/pas.0000000000001545] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Malignant mesothelioma of the peritoneum in women is an uncommon tumor. In this study, we present the clinicopathologic features of 164 such cases seen in our institution over a period of 42 years (1974-2016). Clinical information, pathologic findings, immunohistochemical results, and follow-up were recorded. Hematoxylin and eosin-stained slides were reviewed in all cases. Patients ranged in age from 3 to 85 years, median: 49 years. Most patients presented with abdominal/pelvic pain, although some were asymptomatic, presented with paraneoplastic syndromes or cervical lymphadenopathy. Overall, 9% of patients had a history of direct or indirect exposure to asbestos. In total, 31% and 69% of patients had either a personal or family history of other tumors; most of these tumors are currently recognized as part of a syndrome. Genetic testing information was available in 5 patients: BAP-1 germline mutation (1), type 2 neurofibromatosis (1), Lynch syndrome (1), McCune-Albright syndrome (1), no BAP-1 or TP53 mutation (1). Most cases had gross and microscopic features typical of malignant mesothelioma of the peritoneum in women; however, some had confounding features such as gelatinous appearance, signet ring or clear cells, and well-differentiated papillary mesothelioma-like areas. Calretinin and WT-1 were the markers more frequently expressed, and up to 23% of the cases showed PAX-8 expression. Patients' treatments predominantly included: chemotherapy, cytoreductive surgery, and hyperthermic intraperitoneal chemotherapy. On multivariate analysis, the predominance of deciduoid cells, nuclear grade 3, and the absence of surgical treatment were associated with worse overall survival (OS). For all patients, the 3- and 5-year OS were 74.3% and 57.4%, respectively. The 3- and 5-year OS for patients treated with cytoreductive surgery, and hyperthermic intraperitoneal chemotherapy were 88.9% and 77.8%, respectively.
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Affiliation(s)
| | | | | | | | | | | | | | - Kanwal P S Raghav
- Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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6
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Yoshida K, Miyoshi T, Murakami T. Multicystic peritoneal tumor in two layer hens. J Vet Med Sci 2020; 82:294-298. [PMID: 31932520 PMCID: PMC7118477 DOI: 10.1292/jvms.19-0615] [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] [Indexed: 11/27/2022] Open
Abstract
In chicken, peritoneal cystic lesions have not been clearly categorized. In this study,
diffuse peritoneal multiple cysts were observed in two layer hens. The cysts in the serosa
were lined with single layers of squamous or cuboidal cells. The papillary proliferations
of columnar cells were also observed in one case. The smooth muscle layer or mass were
observed around the cysts in both cases. The cystic lining cells were positive for
pan-cytokeratin, vimentin, S100 and Wilms tumor 1. Ultrastructurally, they had sparsely
microvilli on the luminal surface. The histological results indicated the present cases
were multicystic mesothelioma, but also had characteristics of Mullerian epithelium. This
is the first report describing the detailed pathological feature of unique multicystic
tumor in chicken.
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Affiliation(s)
- Keiko Yoshida
- Fukuoka Prefecture Meat Safety Inspection Center, 4-5-34 Futsukaichi Chuo, Chikushino-shi, Fukuoka 818-0072, Japan
| | - Tomoyuki Miyoshi
- Laboratory of Veterinary Toxicology, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
| | - Tomoaki Murakami
- Laboratory of Veterinary Toxicology, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
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7
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Ruba S, Doherty D, Stewart CJR. A detailed morphological and immunohistochemical comparison of primary endometrial and tubo-ovarian high-grade serous carcinomas and their corresponding omental metastases. Pathology 2019; 52:197-205. [PMID: 31870502 DOI: 10.1016/j.pathol.2019.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/05/2019] [Accepted: 10/13/2019] [Indexed: 12/12/2022]
Abstract
Increasingly, high-grade serous carcinomas (HGSCs) of fallopian tube/ovarian origin are managed initially with neoadjuvant chemotherapy (NACT) and pre-treatment diagnosis is often based upon relatively limited core biopsy and/or cytology specimens. Endometrial HGSC can also present with adnexal and peritoneal metastasis, thus mimicking a primary tubo-ovarian neoplasm, but the role of NACT in these cases is less established. Immunohistochemistry has been considered useful in this distinction but with a wide range of reported findings in the literature. In this study we have examined tumour growth patterns and the expression p16, Ki-67, WT1, PAX2, HER2, ER-α, ER-β, PR, and BAF250a in 18 tubo-ovarian and 14 endometrial HGSCs, comparing the findings in primary and omental sites. Metastatic tubo-ovarian carcinomas demonstrated significantly more varied architectural patterns than metastatic endometrial HGSCs (median 2.5 versus 1). None of the immunohistochemical markers proved completely reliable but only endometrial HGSC were WT1 negative (7/14 metastatic tumours) or demonstrated over-expression of HER2 (2/14 cases). Micropapillary tumour elements more often showed retained PAX2 and WT1 expression, low Ki-67 labelling, and (in endometrial tumours) PR staining. Diverse architectural patterns suggest tubo-ovarian origin in a metastatic HGSC. Immunohistochemical results should be cautiously interpreted, particularly in small specimens.
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Affiliation(s)
- Sukeerat Ruba
- Department of Histopathology, King Edward Memorial Hospital, Perth, WA, Australia.
| | - Dorota Doherty
- Division of Obstetrics and Gynaecology, University of Western Australia, Perth, WA, Australia
| | - Colin J R Stewart
- Department of Histopathology, King Edward Memorial Hospital, Perth, WA, Australia; School for Women's and Infants' Health, University of Western Australia, Perth, WA, Australia
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8
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Huilgol D, Venkataramani P, Nandi S, Bhattacharjee S. Transcription Factors That Govern Development and Disease: An Achilles Heel in Cancer. Genes (Basel) 2019; 10:E794. [PMID: 31614829 PMCID: PMC6826716 DOI: 10.3390/genes10100794] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 10/05/2019] [Accepted: 10/08/2019] [Indexed: 12/22/2022] Open
Abstract
Development requires the careful orchestration of several biological events in order to create any structure and, eventually, to build an entire organism. On the other hand, the fate transformation of terminally differentiated cells is a consequence of erroneous development, and ultimately leads to cancer. In this review, we elaborate how development and cancer share several biological processes, including molecular controls. Transcription factors (TF) are at the helm of both these processes, among many others, and are evolutionarily conserved, ranging from yeast to humans. Here, we discuss four families of TFs that play a pivotal role and have been studied extensively in both embryonic development and cancer-high mobility group box (HMG), GATA, paired box (PAX) and basic helix-loop-helix (bHLH) in the context of their role in development, cancer, and their conservation across several species. Finally, we review TFs as possible therapeutic targets for cancer and reflect on the importance of natural resistance against cancer in certain organisms, yielding knowledge regarding TF function and cancer biology.
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Affiliation(s)
- Dhananjay Huilgol
- Bungtown Road, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, NY 11724, USA.
| | | | - Saikat Nandi
- Bungtown Road, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, NY 11724, USA.
| | - Sonali Bhattacharjee
- Bungtown Road, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, NY 11724, USA.
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9
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Wang J, Jia N, Lyv T, Wang C, Tao X, Wong K, Li Q, Feng W. Paired box 2 promotes progression of endometrial cancer via regulating cell cycle pathway. J Cancer 2018; 9:3743-3754. [PMID: 30405846 PMCID: PMC6216001 DOI: 10.7150/jca.22418] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 12/16/2017] [Indexed: 12/28/2022] Open
Abstract
Background: Human paired box 2 (PAX2) plays a key role in cell fate, early patterning and organogenesis. Methods: We investigated the function of PAX2 on the biological behavior of endometrial cancer in vitro and in vivo and to explore the regulation mechanism, stable knocking-down and over-expression PAX2 endometrial cancer cell lines were established. CCK-8 and transwell assays were applied to determine proliferation, invasion and migration ability. Cell cycle distribution was analyzed by flow cytometry. Affymetrix GeneChip® human Exon 1.0 ST arrays was used to screen the downstream target genes of PAX2. Results: PAX2 significantly enhanced proliferation and invasiveness. In addition, PAX2 influenced the expression of cyclin-dependent kinase 1(CDK1), which play pivotal roles in cell cycle pathway. When CDK1 was knocked down, and the cell proliferation promotion role of PAX2 was attenuated dramatically to a level comparable with the control groups. Conclusions: PAX2, though influencing the expression of CDK1, promotes the proliferation, enhances the mobility of endometrial cancer cells, thus exerts an important role in the carcinogenesis of endometrial cancer. PAX2 may be a potential therapeutic target for endometrial cancer.
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Affiliation(s)
- Jieyu Wang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease of Fudan University, Shanghai, 200011, China
| | - Nan Jia
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease of Fudan University, Shanghai, 200011, China
| | - Tianjiao Lyv
- Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chao Wang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200032, China
| | - Xiang Tao
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200011, China
| | - KwongKwok Wong
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Qin Li
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200032, China
| | - Weiwei Feng
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease of Fudan University, Shanghai, 200011, China.,Department of Obstetrics and Gynecology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
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10
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Hardy LR, Salvi A, Burdette JE. UnPAXing the Divergent Roles of PAX2 and PAX8 in High-Grade Serous Ovarian Cancer. Cancers (Basel) 2018; 10:cancers10080262. [PMID: 30096791 PMCID: PMC6115736 DOI: 10.3390/cancers10080262] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/01/2018] [Accepted: 08/04/2018] [Indexed: 01/19/2023] Open
Abstract
High-grade serous ovarian cancer is a deadly disease that can originate from the fallopian tube or the ovarian surface epithelium. The PAX (paired box) genes PAX2 and PAX8 are lineage-specific transcription factors required during development of the fallopian tube but not in the development of the ovary. PAX2 expression is lost early in serous cancer progression, while PAX8 is expressed ubiquitously. These proteins are implicated in migration, invasion, proliferation, cell survival, stem cell maintenance, and tumor growth. Hence, targeting PAX2 and PAX8 represents a promising drug strategy that could inhibit these pro-tumorigenic effects. In this review, we examine the implications of PAX2 and PAX8 expression in the cell of origin of serous cancer and their potential efficacy as drug targets by summarizing their role in the molecular pathogenesis of ovarian cancer.
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Affiliation(s)
- Laura R Hardy
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA.
| | - Amrita Salvi
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA.
| | - Joanna E Burdette
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA.
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11
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Jahangiri R, Mosaffa F, Gharib M, Emami Razavi AN, Abdirad A, Jamialahmadi K. PAX2 expression is correlated with better survival in tamoxifen-treated breast carcinoma patients. Tissue Cell 2018; 52:135-142. [DOI: 10.1016/j.tice.2018.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 05/07/2018] [Indexed: 02/07/2023]
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12
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An immunohistochemical and molecular analysis of papillary proliferation of the endometrium. Pathology 2018; 50:286-292. [DOI: 10.1016/j.pathol.2017.10.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/25/2018] [Accepted: 10/04/2018] [Indexed: 11/22/2022]
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13
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Jia N, Wang J, Li Q, Tao X, Chang K, Hua K, Yu Y, Wong KK, Feng W. DNA methylation promotes paired box 2 expression via myeloid zinc finger 1 in endometrial cancer. Oncotarget 2018; 7:84785-84797. [PMID: 27764784 PMCID: PMC5356698 DOI: 10.18632/oncotarget.12626] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 09/25/2016] [Indexed: 12/27/2022] Open
Abstract
This work investigated the role of paired box 2 (PAX2) in endometrial cancer and its epigenetic regulation mechanism. Endometrial cancer tissues and cell lines exhibited increased PAX2 expression compared with hyperplasia, normal endometrium and endometrial epithelial cells. Knock-down of PAX2 resulted in reduced cell viability, invasion and migration, and PAX2 overexpression caused the opposite effects. Increased methylation of the PAX2 promoter was observed in both cancer tissues and cell lines and was positively correlated with PAX2 expression. After 5-Aza-CdR treatment, PAX2 mRNA and protein were down-regulated, and PAX2 methylation was decreased. Deletion analysis confirmed that a repressive transcriptional regulatory region of the PAX2 promoter coincided with the hypermethylated region identified in MassARRAY analysis. Binding sites of myeloid zinc finger 1 (MZF1) are predicted in the defined region. Knock-down of MZF1 up-regulated the transcriptional activity and protein level of PAX2 after 5-Aza-CdR treatment, which indicated that MZF1 may act as a repressive transcription factor when the PAX2 promoter is unmethylated. In conclusion, PAX2 is involved in the carcinogenesis of endometrial cancer by stimulating cell growth and promoting cell motility. The overexpression of PAX2 in endometrial cancer is regulated by promoter hypermethylation and the transcription factor MZF1.
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Affiliation(s)
- Nan Jia
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, China
| | - Jieyu Wang
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, China
| | - Qing Li
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, China
| | - Xiang Tao
- Department of Pathology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Kaikai Chang
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, China
| | - Keqin Hua
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, China
| | - Yinhua Yu
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, China
| | - Kwong-Kwok Wong
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Weiwei Feng
- Department of Gynecology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Disease, Fudan University, Shanghai, China
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14
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Harmsen MG, Piek JMJ, Bulten J, Casey MJ, Rebbeck TR, Mourits MJ, Greene MH, Slangen BFM, van Beurden M, Massuger LFAG, Hoogerbrugge N, de Hullu JA. Peritoneal carcinomatosis after risk-reducing surgery in BRCA1/2 mutation carriers. Cancer 2018; 124:952-959. [PMID: 29315498 DOI: 10.1002/cncr.31211] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/24/2017] [Accepted: 10/24/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND Risk-reducing salpingo-oophorectomy (RRSO) is recommended for BRCA1/2 mutation carriers because of their increased risk of ovarian carcinoma. Despite RRSO, metachronous peritoneal carcinomatosis occasionally is diagnosed. METHODS The literature was searched for BRCA1/2 mutation carriers with peritoneal carcinomatosis after risk-reducing surgery. The authors were asked for additional data. Clinical and histopathological data were descriptively analyzed. Cases were compared with a single-institution control cohort. RESULTS Of 36 cases, 86.1% concerned BRCA1 mutation carriers. The median age of the patients was 52 years (range, 30-71 years) at the time of risk-reducing surgery and 60 years (range, 37-75 years) at the time of diagnosis of peritoneal carcinomatosis. The median interval between the 2 events was 54.5 months (range, 11-292 months). Peritoneal carcinomatosis was mostly high-grade serous carcinoma. Histopathological details of the RRSO specimens were retrieved in 8 cases; 5 (62.5%) were found to have serous tubal intraepithelial carcinoma and 1 had epithelial atypia. Cases were older (P = .025) at the time of risk-reducing surgery and harbored more serous tubal intraepithelial carcinomas (P<.001) compared with women from the control cohort. CONCLUSIONS Metachronous peritoneal carcinomatosis after risk-reducing surgery occurs predominantly in BRCA1 mutation carriers, usually within 5 years. Data have suggested that surgery at a younger age lowers the rates of peritoneal carcinomatosis. These data can be used in the gynecologic counseling of BRCA1/2 mutation carriers. RRSO should include complete salpingectomy. Detailed histopathological examination of specimens removed during RRSO is essential. Cancer 2018;124:952-9. © 2018 American Cancer Society.
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Affiliation(s)
- Marline G Harmsen
- Department of Obstetrics and Gynaecology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jurgen M J Piek
- Department of Obstetrics and Gynaecology, Catharina Hospital, Eindhoven, The Netherlands
| | - Johan Bulten
- Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Murray J Casey
- Department of Obstetrics and Gynecology, Creighton University School of Medicine, Omaha, Nebraska.,Department of Preventive Medicine, Creighton University School of Medicine, Omaha, Nebraska
| | - Timothy R Rebbeck
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Marian J Mourits
- Department of Gynaecology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Mark H Greene
- Division of Cancer Epidemiology and Genetics, Clinical Genetics Branch, National Cancer Institute, National Institutes of Health, Rockville, Maryland
| | - Brigitte F M Slangen
- Department of Obstetrics and Gynaecology, Maastricht University Medical Centre, GROW-School for Oncology and Developmental Biology, Maastricht, The Netherlands
| | - Marc van Beurden
- Center for Gynaecological Oncology Amsterdam, Netherlands Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Leon F A G Massuger
- Department of Obstetrics and Gynaecology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Nicoline Hoogerbrugge
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Joanne A de Hullu
- Department of Obstetrics and Gynaecology, Radboud University Medical Center, Nijmegen, The Netherlands
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15
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Tandon RT, Jimenez-Cortez Y, Taub R, Borczuk AC. Immunohistochemistry in Peritoneal Mesothelioma: A Single-Center Experience of 244 Cases. Arch Pathol Lab Med 2017; 142:236-242. [DOI: 10.5858/arpa.2017-0092-oa] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Context.—
Diagnosis of malignant mesothelioma is more common in the chest than it is in the abdomen. Most published immunohistochemistry data are more applicable to pleural than to peritoneal mesothelioma.
Objective.—
To clarify the practical utility of 17 immunohistochemistry markers in the differential diagnosis of peritoneal mesothelioma with an emphasis on stains for which there is either contradictory information or a paucity of literature.
Design.—
Consultation files of peritoneal mesothelioma diagnoses rendered from 1999 to 2014 were reviewed; 244 cases were identified. The results of immunohistochemistry markers performed were tabulated.
Results.—
Immunohistochemistry markers positive in peritoneal mesothelioma in order of sensitivity were calretinin (244 of 244; 100%), WT1 (205 of 218; 94%), CK5/6 (173 of 194; 89%), mesothelin (132 of 150; 88%), and D2-40 (78 of 97; 80%). Markers used to differentiate carcinoma from mesothelioma showed immunoreactivity in peritoneal mesothelioma: estrogen receptor (2 of 84; 2%), B72.3 (6 of 196; 3%), CK20 (5 of 116; 4%), CD15 (7 of 192; 4%), p63 (3 of 62; 5%), carcinoembryonic antigen (9 of 199; 5%), PAX8 (12 of 191; 6%), progesterone receptor (5 of 71; 7%), Ber-EP4 (17 of 209; 8%), and CD138 (9 of 91; 10%). BAP1 loss, increasingly used in the differential diagnosis of benign versus malignant mesothelial proliferation, occured in 55% (99 of 181) of peritoneal mesothelioma cases.
Conclusions.—
The results support the experience that there is no definitive marker to rule out malignant mesothelioma, including PAX8, estrogen receptor, progesterone receptor, and p63 immunoreactivity. The high rate of immunoreactivity for mesothelin may have a role as a predictive marker for immune targeting. BAP1 loss of 55% in this cohort of peritoneal mesothelioma confirms published observations, and BAP1 retention is seen in a significant proportion of neoplastic cases.
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16
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Sarkar S, Bristow CA, Dey P, Rai K, Perets R, Ramirez-Cardenas A, Malasi S, Huang-Hobbs E, Haemmerle M, Wu SY, McGuire M, Protopopov A, Jiang S, Liu JF, Hirsch MS, Chang Q, Lazar AJ, Sood AK, Drapkin R, DePinho R, Draetta G, Chin L. PRKCI promotes immune suppression in ovarian cancer. Genes Dev 2017; 31:1109-1121. [PMID: 28698296 PMCID: PMC5538434 DOI: 10.1101/gad.296640.117] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/08/2017] [Indexed: 12/28/2022]
Abstract
Here, Sarkar et al. report that PRKCI expression, which is a key feature of high-grade serous ovarian carcinoma (HGSOC), is also up-regulated in serous tubal intraepithelial carcinoma (STIC) and early fallopian tube (FT) lesions. Using a transgenic mouse model of ovarian cancer overexpressing PRKCI, they show that PRKCI is a deregulated ovarian cancer-specific oncogene and plays a role in early stages of cancer development. A key feature of high-grade serous ovarian carcinoma (HGSOC) is frequent amplification of the 3q26 locus harboring PRKC-ι (PRKCI). Here, we show that PRKCI is also expressed in early fallopian tube lesions, called serous tubal intraepithelial carcinoma. Transgenic mouse studies establish PRKCI as an ovarian cancer-specific oncogene. Mechanistically, we show that the oncogenic activity of PRKCI relates in part to the up-regulation of TNFα to promote an immune-suppressive tumor microenvironment characterized by an abundance of myeloid-derived suppressor cells and inhibition of cytotoxic T-cell infiltration. Furthermore, system-level and functional analyses identify YAP1 as a downstream effector in tumor progression. In human ovarian cancers, high PRKCI expression also correlates with high expression of TNFα and YAP1 and low infiltration of cytotoxic T cells. The PRKCI–YAP1 regulation of the tumor immunity provides a therapeutic strategy for highly lethal ovarian cancer.
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Affiliation(s)
- Sharmistha Sarkar
- Department of Genomic Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Christopher A Bristow
- Department of Genomic Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA.,Institute for Applied Cancer Science, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Prasenjit Dey
- Department of Cancer Biology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Kunal Rai
- Department of Genomic Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Ruth Perets
- Division of Oncology, Clinical Research Institute at Rambam, Haifa 31096, Israel
| | | | - Shruti Malasi
- Department of Genomic Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Emmet Huang-Hobbs
- Department of Genomic Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Monika Haemmerle
- Department of Gynecologic Oncology and Reproductive Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Sherry Y Wu
- Department of Gynecologic Oncology and Reproductive Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Michael McGuire
- Department of Gynecologic Oncology and Reproductive Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | | | - Shan Jiang
- Department of Genomic Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Joyce F Liu
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Michelle S Hirsch
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Qing Chang
- Institute for Applied Cancer Science, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Alexander J Lazar
- Department of Pathology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA.,Department of Dermatology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Anil K Sood
- Department of Cancer Biology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA.,Department of Gynecologic Oncology and Reproductive Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA.,Center for RNA Interference and Non-Coding RNA, University of Texas M.D. Anderson Cancer Center, Houston, Texas, 77054, USA
| | - Ronny Drapkin
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02115, USA.,Department of ObGyn, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Ronald DePinho
- Department of Cancer Biology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Giulio Draetta
- Department of Genomic Medicine, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA.,Institute for Applied Cancer Science, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA.,Department of Molecular and Cellular Oncology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77054, USA
| | - Lynda Chin
- Institute for Health Transformation, The University of Texas System, Houston, Texas 77030, USA
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17
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Zhang WW, Jia YF, Wang F, Du QY, Chang ZJ. Identification of differentially-expressed genes in early developmental ovary of Yellow River carp (Cyprinus carpio var) using Suppression Subtractive Hybridization. Theriogenology 2017; 97:9-16. [PMID: 28583615 DOI: 10.1016/j.theriogenology.2017.04.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/23/2017] [Accepted: 04/10/2017] [Indexed: 10/19/2022]
Abstract
Ovary development appears to be under polygenic control, and is influenced by multiple genetic factors that may vary from organism to organism. To gain a better insight into the molecular mechanisms of carp ovary development, Suppression Subtractive Hybridization (SSH) DNA libraries in two species of Yellow River carp were analyzed. Primordial gonads and stage II ovaries were used as testers, and adult ovaries as drivers. One hundred and fifty differentially-expressed candidate genes were examined by Southern blot microarray hybridization. We identified 41 differentially-expressed genes in the PG (Primordial gonad) library and 37 in the stage II ovary library. Gene Ontology Biological Pathway analysis showed the genes were involved in signal transduction, proteolysis process, cell differentiation, TGF-β signal and other biological responses. Twenty-two candidate genes were selected and further characterized using qRT-PCR. Pvalb, epd, and MYH were found specifically expressed in PG, while bmp2b, desmin and fp1 were specifically expressed in stage II ovary. Our results indicate that these genes could be used as biomarkers of the early development of carp ovary. This finding will provide a basis for further understanding of the complex gonad developmental molecular mechanisms in Yellow River carp.
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Affiliation(s)
- Wan-Wan Zhang
- College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, People's Republic of China
| | - Yong-Fang Jia
- College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, People's Republic of China
| | - Fang Wang
- College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, People's Republic of China
| | - Qi-Yan Du
- College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, People's Republic of China
| | - Zhong-Jie Chang
- College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, People's Republic of China.
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18
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Sanderson PA, Critchley HO, Williams AR, Arends MJ, Saunders PT. New concepts for an old problem: the diagnosis of endometrial hyperplasia. Hum Reprod Update 2017; 23:232-254. [PMID: 27920066 PMCID: PMC5850217 DOI: 10.1093/humupd/dmw042] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 10/24/2016] [Accepted: 10/31/2016] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Endometrial hyperplasia (EH) is a uterine pathology representing a spectrum of morphological endometrial alterations. It is predominantly characterized by an increase in the endometrial gland-to-stroma ratio when compared to normal proliferative endometrium. The clinical significance of EH lies in the associated risk of progression to endometrioid endometrial cancer (EC) and 'atypical' forms of EH are regarded as premalignant lesions. Traditional histopathological classification systems for EH exhibit wide and varying degrees of diagnostic reproducibility and, as a consequence, standardized patient management can be challenging. OBJECTIVE AND RATIONALE EC is the most common gynaecological malignancy in developed countries. The incidence of EC is rising, with alarming increases described in the 40-44-year-old age group. This review appraises the current EH classification systems used to stratify women at risk of malignant progression to EC. In addition, we summarize the evidence base regarding the use of immunohistochemical biomarkers for EH and discuss an emerging role for genomic analysis. SEARCH METHODS PubMed, Medline and the Cochrane Database were searched for original peer-reviewed primary and review articles, from January 2000 to January 2016. The following search terms were used: 'endometrial hyperplasia', 'endometrial intraepithelial neoplasia', 'atypical hyperplasia', 'complex atypical hyperplasia', 'biomarker', 'immunohistochemistry', 'progression', 'genomic', 'classification' and 'stratification'. OUTCOMES Recent changes to EH classification reflect our current understanding of the genesis of endometrioid ECs. The concept of endometrial intraepithelial neoplasia (EIN) as a mutationally activated, monoclonal pre-malignancy represents a fundamental shift from the previously held notion that unopposed oestrogenic stimulation causes ever-increasing hyperplastic proliferation, with accumulating cytological atypia that imperceptibly leads to the development of endometrioid EC. Our review highlights several key biomarker candidates that have been described as both diagnostic tools for EH and markers of progression to EC. We propose that, moving forwards, a 'panel' approach of combinations of the immunohistochemical biomarkers described in this review may be more informative since no single candidate can currently fill the entire role. WIDER IMPLICATIONS EC has historically been considered a predominantly postmenopausal disease. Owing in part to the current unprecedented rates of obesity, we are starting to see signs of a shift towards a rising incidence of EC amongst pre- and peri-menopausal woman. This creates unique challenges both diagnostically and therapeutically. Furthering our understanding of the premalignant stages of EC development will allow us to pursue earlier diagnosis and facilitate appropriate stratification of women at risk of developing EC, permitting timely and appropriate therapeutic interventions.
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Affiliation(s)
- Peter A. Sanderson
- MRC Centre for Inflammation Research, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, EdinburghEH16 4TJ, UK
| | - Hilary O.D. Critchley
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, EdinburghEH16 4TJ, UK
| | - Alistair R.W. Williams
- Division of Pathology, The Royal Infirmary of Edinburgh, 51 Little France Crescent, EdinburghEH16 4SA, UK
| | - Mark J. Arends
- Division of Pathology, Edinburgh Cancer Research Centre, Western General Hospital, Crewe Road South, EdinburghEH4 2XR, UK
- Centre for Comparative Pathology, The University of Edinburgh, Easter Bush, MidlothianEH25 9RG, UK
| | - Philippa T.K. Saunders
- MRC Centre for Inflammation Research, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, EdinburghEH16 4TJ, UK
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19
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Xu Z, Wu S, Xing Q, Wang X, Xiang H, Xu Y, Wang J, He X, Wang B, Cao Y. Genetic association between PAX2 and mullerian duct anomalies in Han Chinese females. J Assist Reprod Genet 2016; 34:125-129. [PMID: 27722936 DOI: 10.1007/s10815-016-0807-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 08/30/2016] [Indexed: 12/19/2022] Open
Abstract
PURPOSE The study aims to investigate the genetic association between paired box gene 2 (PAX2) and mullerian duct anomalies (MDA) in Chinese Han females. METHODS Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was used to identify the genotypes of three tag single nucleotide polymorphisms (SNPs) in PAX2 in 362 MDA cases and 406 controls. RESULTS We found that one tag SNP (rs12266644) of PAX2 was associated with susceptibility to MDA. The genotype distributions of the SNP rs12266644 have a statistically significant difference in the MDA patients and controls with a p value = 0.008. In the dominant model, we also observed that the GT + TT genotype increased the risk for MDA (p = 0.015, OR = 1.637, 95 % CI = 1.096-2.443). CONCLUSION The polymorphism rs12266644 of PAX2 might be a risk factor for MDA in Chinese Han females.
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Affiliation(s)
- Zuying Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Reproductive Genetics, Anhui Medical University, Hefei, China.,Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Hefei, China
| | - Shinan Wu
- Graduate School of Peking Union Medical College, Beijing, China.,Center for Genetics, National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Qiong Xing
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Reproductive Genetics, Anhui Medical University, Hefei, China.,Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Hefei, China
| | - Xi Wang
- Center for Genetics, National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China
| | - Huifen Xiang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Reproductive Genetics, Anhui Medical University, Hefei, China.,Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Hefei, China
| | - Yuping Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Reproductive Genetics, Anhui Medical University, Hefei, China.,Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Hefei, China
| | - Jing Wang
- Department of Medical Genetics, The Capital Medical University, Beijing, China
| | - Xiaojin He
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Reproductive Genetics, Anhui Medical University, Hefei, China.,Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Hefei, China
| | - Binbin Wang
- Graduate School of Peking Union Medical College, Beijing, China. .,Center for Genetics, National Research Institute for Family Planning, 12 Dahuisi Road, Haidian, Beijing, 100081, China.
| | - Yunxia Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China. .,Institute of Reproductive Genetics, Anhui Medical University, Hefei, China. .,Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Hefei, China.
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20
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Lin Z, Zhao J, Wang X, Zhu X, Gong L. Overexpression of microRNA-497 suppresses cell proliferation and induces apoptosis through targeting paired box 2 in human ovarian cancer. Oncol Rep 2016; 36:2101-7. [PMID: 27513319 DOI: 10.3892/or.2016.5012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 03/22/2016] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs are a class of endogenous, small non-coding RNAs which are tightly involved in evolution and progression of human cancers. MicroRNA-497 has been reported as tumor-suppressor in various human cancer. However, the role of miR-497 in ovarian cancer is still poorly known. We investigated the expression level and cellular function of miR-497 in human ovarian cancer. In this study, the expression of miR-497 in ovarian cancer tissues and SKOV3 cells was detected by quantitative reverse‑transcription polymerase chain reaction (qRT-PCR). CCK-8 assay was used to analysis the cell proliferation. Transwell assay was performed to analysis cell migration and invasion. Cell apoptosis was evaluated by flow cytometry. Luciferase assay was performed to verify a putative target site of miR-497 in the 3'UTR of PAX2 mRNA. The results showed that miR-497 was markedly decreased in ovarian cancer tissues and SKOV3 cells. Moreover, overexpression of miR-497 in SKOV3 cells induced PAX2 protein expression and resulted in inhibition of cell proliferation, migration and invasion, and induction of cell apoptosis. In addition, we confirmed that PAX2 is a direct target gene of miR-497. Furthermore, Silencing of PAX2 by RNA interference suppressed cell proliferation and promoted cell apoptosis in vitro. Taken together, our study rationally present that miR-497 has a potential role as a useful diagnostic and therapeutic biomarker for human ovarian cancer.
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Affiliation(s)
- Zhong Lin
- Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Junling Zhao
- Department of Gynaecology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Xindan Wang
- Department of Gynaecology, Liuzhou Maternity and Child Healthcare Hospital, Liuzhou, Guangxi, P.R. China
| | - Xuehong Zhu
- Department of Gynaecology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Liansheng Gong
- Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
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21
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Wang M, Ma H. Paired box gene 2 is associated with estrogen receptor α in ovarian serous tumors: Potential theory basis for targeted therapy. Mol Clin Oncol 2016; 5:323-326. [PMID: 27446571 DOI: 10.3892/mco.2016.935] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 04/21/2016] [Indexed: 01/01/2023] Open
Abstract
It has been suggested that Paired box gene (PAX)2 is activated by estradiol via estrogen receptor (ER)α in breast and endometrial cancer. The expression of PAX2 was restricted to ovarian serous tumors and only one case was positive in borderline mucinous tumor in our previous study. In the present study, immunohistochemistry was performed to assess the expression of ERα in 58 cases of ovarian serous tumors, including 30 serous cystadenomas, 16 borderline serous cystadenomas, 12 serous carcinomas and 67 cases of ovarian mucinous tumors, including 29 mucinous cystadenoma, 23 borderline mucinous cystadenoma and 15 mucinous carcinoma, which were the same specimens with detection of PAX2 expression. The results demonstrated that ERα was expressed in 10% (3/30) of serous cystadenomas, 62.5% (10/16) borderline serous cystadenomas and 66.7% (8/12) serous carcinomas. The expression of ERα in borderline serous cystadenomas and serous carcinomas were significantly higher compared with that in serous cystadenomas (P<0.01). ERα was detected in 3.4% (1/29) mucinous cystadenoma, 26.1% (6/23) borderline mucinous cystadenoma and only 6.7% (1/15) mucinous carcinoma. Furthermore, a scatter plot of the expression of PAX2 and ERα revealed a linear correlation between them in ovarian serous tumors (P<0.0001). With few positive results, no correlation was determined in ovarian mucinous tumors. It was demonstrated that PAX2 is associated with ERα in ovarian serous tumors, and this may become a potential theory basis for targeted therapy for ovarian serous tumors. Further research is required to determine how PAX2 and ERα work together, and the role of targeted therapy in ovarian serous tumors.
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Affiliation(s)
- Min Wang
- Department of Pathology, Beilun People's Hospital, Ningbo, Zhejiang 315800, P.R. China
| | - Haifen Ma
- Department of Pathology, Beilun People's Hospital, Ningbo, Zhejiang 315800, P.R. China
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22
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Al-Hujaily EM, Tang Y, Yao DS, Carmona E, Garson K, Vanderhyden BC. Divergent Roles of PAX2 in the Etiology and Progression of Ovarian Cancer. Cancer Prev Res (Phila) 2015; 8:1163-73. [DOI: 10.1158/1940-6207.capr-15-0121-t] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 09/08/2015] [Indexed: 11/16/2022]
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23
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Waters L, Crumley S, Truong L, Mody D, Coffey D. PAX2 and PAX8: useful markers for metastatic effusions. Acta Cytol 2014; 58:60-6. [PMID: 24334997 DOI: 10.1159/000356426] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/08/2013] [Indexed: 11/19/2022]
Abstract
OBJECTIVE It was the aim of this study to determine the utility of PAX2 and PAX8 in cytology effusions with metastatic tumor. STUDY DESIGN PAX2 and PAX8 immunohistochemical staining was performed on cell blocks of 89 pleural, pericardial and peritoneal effusions with benign diagnoses (18 cases), or secondary to renal cell carcinoma (RCC; 9 cases), müllerian carcinoma (21 cases) or non-müllerian carcinoma (41 cases). RESULTS PAX2 stained 0% (0/18) of controls, 100% (8/8) of RCCs, 35% (7/20) of müllerian carcinomas, and 2% (1/41) of non-müllerian carcinomas. PAX8 stained 6% (1/18) of control cases, 100% (9/9) of RCC cases, 100% (20/20) of müllerian carcinomas, and 5% (2/41) of non-müllerian carcinomas. PAX2 was 35% sensitive and 95% specific for müllerian carcinoma and 100% sensitive and 95% specific for RCC. PAX8 was 100% sensitive and 95% specific for müllerian carcinoma and 100% sensitive and 95% specific for RCC. CONCLUSIONS PAX8 is more sensitive than PAX2 for metastatic effusions from müllerian carcinomas (100 vs. 35%), while also having a higher intensity of staining than PAX2. However, PAX2 and PAX8 are both highly sensitive and specific for RCCs. PAX2 and PAX8 are valuable diagnostic markers for metastatic müllerian carcinomas and RCCs in effusion cytology. PAX8 is superior for carcinomas of müllerian origin.
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Affiliation(s)
- Lindsay Waters
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Tex., USA
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Kuhn E, Ayhan A, Shih IM, Seidman JD, Kurman RJ. Ovarian Brenner tumour: a morphologic and immunohistochemical analysis suggesting an origin from fallopian tube epithelium. Eur J Cancer 2013; 49:3839-49. [PMID: 24012099 DOI: 10.1016/j.ejca.2013.08.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 08/06/2013] [Accepted: 08/13/2013] [Indexed: 01/17/2023]
Abstract
BACKGROUND Brenner tumours (BTs), like other epithelial ovarian tumours, are thought to develop from the ovarian surface epithelium. AIM AND METHODS We hypothesised that BTs arise from transitional metaplasia near the tuboperitoneal junction which, when embedded in the ovary as Walthard cell nests, may progress to BTs. The aim of this study was to validate this hypothesis by a morphologic and immunohistochemical (IHC) analysis. RESULTS The IHC analysis revealed that fallopian tube secretory cells, transitional metaplasia, Walthard cell nests and the epithelial component of BTs shared a similar IHC profile, consistently expressing AKR1C3 (an enzyme involved in androgen biosynthesis) and androgen receptor, but not calretinin. The tumour stromal cells that immediately surrounded the epithelial nests showed strong expression of calretinin, inhibin and steroidogenic factor 1 (markers of steroidogenic cells) in the majority of BTs. Using a highly sensitive immunofluorescent staining method, we detected small groups of cilia in transitional metaplasia and Walthard cell nests, multifocal stretches of cilia and/or ciliated vacuoles in benign BTs and well-developed cilia in atypical proliferative BTs. CONCLUSIONS Our findings suggest a tubal origin of BTs through transitional metaplasia and Walthard cell nests, based on their anatomic proximity, similar IHC profile and the presence of cilia. In addition, we hypothesise a role of androgenic stimulation in the pathogenesis of BT, based on the IHC staining pattern of calretinin, inhibin and steroidogenic factor 1 expressed in the luteinised stromal cells surrounding the epithelial nests of the tumours, and AKR1C3 and androgen receptor expressed in both the epithelial and stromal components.
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Affiliation(s)
- Elisabetta Kuhn
- Department of Pathology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA.
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Ordóñez NG. Value of PAX8, PAX2, napsin A, carbonic anhydrase IX, and claudin-4 immunostaining in distinguishing pleural epithelioid mesothelioma from metastatic renal cell carcinoma. Mod Pathol 2013; 26:1132-43. [PMID: 23503645 DOI: 10.1038/modpathol.2013.34] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Revised: 12/12/2012] [Accepted: 12/28/2012] [Indexed: 01/05/2023]
Abstract
Both mesotheliomas and renal cell carcinomas can present a wide variety of cytomorphologic features and histologic patterns. Because of this, renal cell carcinomas metastatic to the pleura and lung can be confused with mesotheliomas. Recently, a variety of positive carcinoma markers, including kidney-associated markers, have become available. The aim of this study is to investigate the value of some of these markers, specifically PAX8, PAX2, napsin A, carbonic anhydrase IX, and claudin-4, for assisting in distinguishing pleural epithelioid mesotheliomas from metastatic renal cell carcinomas. To do so, a total of 40 pleural epithelioid mesotheliomas and 55 renal cell carcinomas (33 clear cell, 10 papillary, and 12 chromophobe) were investigated. In all, 91% of the renal cell carcinomas expressed claudin-4, 89% PAX8, 60% PAX2, 71% carbonic anhydrase IX, and 29% napsin A. All of the mesotheliomas were positive for carbonic anhydrase IX and were negative for all of the other markers. On the basis of these results, it is concluded that claudin-4 and PAX8 have a higher sensitivity and specificity for assisting in discriminating between pleural epithelioid mesotheliomas and renal cell carcinomas when compared with all of the other positive carcinoma markers that are, at present, recommended to be included in the immunohistochemical panels used in this differential diagnosis. Even though PAX2 and napsin A are highly specific, because of their low sensitivity, they have only a limited value. Carbonic anhydrase IX is not useful.
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Affiliation(s)
- Nelson G Ordóñez
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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Value of PAX8, PAX2, claudin-4, and h-caldesmon immunostaining in distinguishing peritoneal epithelioid mesotheliomas from serous carcinomas. Mod Pathol 2013; 26:553-62. [PMID: 23196794 DOI: 10.1038/modpathol.2012.200] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Distinguishing between peritoneal epithelioid mesotheliomas and papillary serous carcinomas involving the peritoneum can be difficult on routine histological preparations, but this differential diagnosis can be facilitated by the use of immunohistochemistry. Recent investigations have indicated that PAX8, PAX2, claudin-4, and h-caldesmon are immunohistochemical markers that can assist in distinguishing between these two malignancies; however, much of the information published on the value of these markers is either insufficient or contradictory. The purpose of this study is to resolve some of the existing controversies and to fully determine the practical value of these markers for assisting in the differential diagnosis between peritoneal mesotheliomas and serous carcinomas. In order to do so, a total of 40 peritoneal epithelioid mesotheliomas and 45 serous carcinomas (15 primary, 30 metastatic to the peritoneum) were investigated. PAX8 and PAX2 nuclear positivity was demonstrated in 42 (93%) and 25 (56%) of the serous carcinomas, respectively, whereas none of the mesotheliomas expressed either marker. Forty-four (98%) of the serous carcinomas exhibited claudin-4 reactivity along the cell membrane, whereas none of the mesotheliomas were positive for this marker. All of the serous carcinomas and mesotheliomas were negative for h-caldesmon. Based on these results, it is concluded that PAX8 and claudin-4 have a higher sensitivity and specificity for assisting in discriminating between peritoneal epithelioid mesotheliomas and serous carcinomas when compared with all of the other positive carcinoma markers that are, at present, recommended to be included in the immunohistochemical panels used in this differential diagnosis. Even though it is highly specific, PAX2 has little practical value in the diagnosis of peritoneal epithelioid mesotheliomas as its sensitivity is low. The h-caldesmon is not useful.
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PAX2 Expression in Ovarian Cancer. Int J Mol Sci 2013; 14:6090-105. [PMID: 23502471 PMCID: PMC3634442 DOI: 10.3390/ijms14036090] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 03/05/2013] [Accepted: 03/13/2013] [Indexed: 02/01/2023] Open
Abstract
PAX2 is one of nine PAX genes that regulate tissue development and cellular differentiation in embryos. However, the functional role of PAX2 in ovarian cancer is not known. Twenty-six ovarian cancer cell lines with different histology origins were screened for PAX2 expression. Two ovarian cancer cell lines: RMUGL (mucinous) and TOV21G (clear cell), with high PAX2 expression were chosen for further study. Knockdown PAX2 expression in these cell lines was achieved by lentiviral shRNAs targeting the PAX2 gene. PAX2 stable knockdown cells were characterized for cell proliferation, migration, apoptosis, protein profiles, and gene expression profiles. The result indicated that these stable PAX2 knockdown cells had reduced cell proliferation and migration. Microarray analysis indicated that several genes involved in growth inhibition and motility, such as G0S2, GREM1, and WFDC1, were up-regulated in PAX2 knockdown cells. On the other hand, over-expressing PAX2 in PAX2-negative ovarian cell lines suppressed their cell proliferation. In summary, PAX2 could have both oncogenic and tumor suppression functions, which might depend on the genetic content of the ovarian cancer cells. Further investigation of PAX2 in tumor suppression and mortality is warranty.
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Ozcan A, de la Roza G, Ro JY, Shen SS, Truong LD. PAX2 and PAX8 Expression in Primary and Metastatic Renal Tumors: A Comprehensive Comparison. Arch Pathol Lab Med 2012. [PMID: 23194047 DOI: 10.5858/arpa.2012-0072-oa] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Context.—The diagnosis of renal cell carcinoma (RCC) remains problematic, especially in the context of metastasis or small-needle biopsies. PAX2 and PAX8 transcription factors are known to be expressed by several histologic types of renal neoplasms.
Objective.—To evaluate the diagnostic utility of PAX2 and PAX8 relative to one another, which has not been studied.
Design.—Consecutive tissue sections from the archival samples of 243 primary and 99 metastatic renal neoplasms were submitted to PAX2 and PAX8 immunostain.
Results.—Within the primary neoplasms, PAX2 versus PAX8 expression was noted in 90 of 95 (95%) versus 92 of 95 (97%) for clear cell RCC, 29 of 38 (76%) versus 38 of 38 (100%) for papillary RCC, 14 of 25 (56%) versus 22 of 25 (88%) for chromophobe RCC, 3 of 7 (43%) versus 5 of 7 (71%) for collecting duct RCC, 6 of 8 (75%) versus 8 of 8 (100%) for acquired cystic kidney disease–related RCC, and 7 of 13 (54%) versus 11 of 13 (85%) for oncocytoma. Regardless of histologic subtype, PAX8 staining was noted in more cells and with more intense staining than PAX2. Within the metastatic RCCs, PAX8 expression was more frequently positive than PAX2 expression (88 of 99 cases; 89%; versus 75 of 99 cases; 76%).
Conclusions.—Both PAX2 and PAX8 are diagnostically useful markers for both primary and metastatic renal neoplasms of a large variety of histologic types. However, PAX8 appears to be more sensitive than PAX2 in both primary and metastatic settings. PAX8 can be included in any immunohistochemical panel for the diagnosis of primary renal neoplasms. Adding PAX2 should be optional, but this would gain limited further diagnostic yield. In a metastatic setting, both PAX8 and PAX2 can be included in a panel because a small subset of metastatic RCCs are stained only with PAX2.
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Affiliation(s)
- Ayhan Ozcan
- From the Department of Pathology (Drs Ozcan, de la Roza, Ro, Shen, and Truong), The Methodist Hospital, Houston, Texas; (Drs de la Roza, Ro, Shen, and Truong); Baylor College of Medicine, Houston, Texas (Dr Truong); Weill Medical College of Cornell University, New York, New York (Drs Ozcan, de la Roza, Ro, Shen, and Truong); Gülhane Military Medical Academy & School of Medicine, Ankara, Turkey (Dr Ozcan); and The Methodist Research Institute, Houston, Texas (Drs de las Roza, Ro, Shen, and Truong)
| | - Gustavo de la Roza
- From the Department of Pathology (Drs Ozcan, de la Roza, Ro, Shen, and Truong), The Methodist Hospital, Houston, Texas; (Drs de la Roza, Ro, Shen, and Truong); Baylor College of Medicine, Houston, Texas (Dr Truong); Weill Medical College of Cornell University, New York, New York (Drs Ozcan, de la Roza, Ro, Shen, and Truong); Gülhane Military Medical Academy & School of Medicine, Ankara, Turkey (Dr Ozcan); and The Methodist Research Institute, Houston, Texas (Drs de las Roza, Ro, Shen, and Truong)
| | - Jae Y. Ro
- From the Department of Pathology (Drs Ozcan, de la Roza, Ro, Shen, and Truong), The Methodist Hospital, Houston, Texas; (Drs de la Roza, Ro, Shen, and Truong); Baylor College of Medicine, Houston, Texas (Dr Truong); Weill Medical College of Cornell University, New York, New York (Drs Ozcan, de la Roza, Ro, Shen, and Truong); Gülhane Military Medical Academy & School of Medicine, Ankara, Turkey (Dr Ozcan); and The Methodist Research Institute, Houston, Texas (Drs de las Roza, Ro, Shen, and Truong)
| | - Steven S. Shen
- From the Department of Pathology (Drs Ozcan, de la Roza, Ro, Shen, and Truong), The Methodist Hospital, Houston, Texas; (Drs de la Roza, Ro, Shen, and Truong); Baylor College of Medicine, Houston, Texas (Dr Truong); Weill Medical College of Cornell University, New York, New York (Drs Ozcan, de la Roza, Ro, Shen, and Truong); Gülhane Military Medical Academy & School of Medicine, Ankara, Turkey (Dr Ozcan); and The Methodist Research Institute, Houston, Texas (Drs de las Roza, Ro, Shen, and Truong)
| | - Luan D. Truong
- From the Department of Pathology (Drs Ozcan, de la Roza, Ro, Shen, and Truong), The Methodist Hospital, Houston, Texas; (Drs de la Roza, Ro, Shen, and Truong); Baylor College of Medicine, Houston, Texas (Dr Truong); Weill Medical College of Cornell University, New York, New York (Drs Ozcan, de la Roza, Ro, Shen, and Truong); Gülhane Military Medical Academy & School of Medicine, Ankara, Turkey (Dr Ozcan); and The Methodist Research Institute, Houston, Texas (Drs de las Roza, Ro, Shen, and Truong)
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Dhillon J, Mohanty SK, Krishnamurthy S. Cytologic diagnosis of thyroid-like follicular carcinoma of the kidney: A case report. Diagn Cytopathol 2012; 42:273-7. [DOI: 10.1002/dc.22930] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 08/28/2012] [Indexed: 11/07/2022]
Affiliation(s)
| | - Sambit K. Mohanty
- Department of Pathology Laboratory Medicine; Cedars-Sinai Hospital; Los Angeles California
| | - Savitri Krishnamurthy
- Department of Pathology; University of Texas M.D. Anderson Cancer Center; Houston Texas
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Ordóñez NG. Application of immunohistochemistry in the diagnosis of epithelioid mesothelioma: a review and update. Hum Pathol 2012; 44:1-19. [PMID: 22963903 DOI: 10.1016/j.humpath.2012.05.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 05/14/2012] [Accepted: 05/16/2012] [Indexed: 01/12/2023]
Abstract
A large number of immunohistochemical markers that can assist in the differential diagnosis of epithelioid mesotheliomas are currently available. Because these markers are expressed differently in the various types of carcinomas that can metastasize to the serosal membranes and can potentially be confused with epithelioid mesothelioma, their selection for inclusion in a diagnostic panel largely depends on the differential diagnosis, as well as on which ones work the best in a given laboratory. Traditionally, the panels used in the differential diagnosis of epithelioid mesothelioma have consisted of a combination of positive mesothelioma markers and broad-spectrum carcinoma markers. At present, a wide variety of organ-associated carcinoma markers such as thyroid transcription factor-1 and napsin A for the lung, PAX 8 and PAX 2 for the kidney, and Müllerian-derived tumors; gross cystic disease fluid protein-15 and mammaglobin for the breast; and CDX2 for intestinal differentiation are available, which can assist in establishing the site of origin of an adenocarcinoma when included in a diagnostic panel. This article provides updated information on the composition of the panels of markers recommended in the various differential diagnoses.
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Affiliation(s)
- Nelson G Ordóñez
- The University of Texas MD Anderson Cancer Center, Department of Pathology, Houston, TX 77030, USA.
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Wang Y, Sacchetti A, van Dijk MR, van der Zee M, van der Horst PH, Joosten R, Burger CW, Grootegoed JA, Blok LJ, Fodde R. Identification of quiescent, stem-like cells in the distal female reproductive tract. PLoS One 2012; 7:e40691. [PMID: 22848396 PMCID: PMC3404087 DOI: 10.1371/journal.pone.0040691] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 06/11/2012] [Indexed: 12/15/2022] Open
Abstract
In fertile women, the endometrium undergoes regular cycles of tissue build-up and regression. It is likely that uterine stem cells are involved in this remarkable turn over. The main goal of our current investigations was to identify slow-cycling (quiescent) endometrial stem cells by means of a pulse-chase approach to selectively earmark, prospectively isolate, and characterize label-retaining cells (LRCs). To this aim, transgenic mice expressing histone2B-GFP (H2B-GFP) in a Tet-inducible fashion were administered doxycycline (pulse) which was thereafter withdrawn from the drinking water (chase). Over time, dividing cells progressively loose GFP signal whereas infrequently dividing cells retain H2B-GFP expression. We evaluated H2B-GFP retaining cells at different chase time points and identified long-term (LT; >12 weeks) LRCs. The LT-LRCs are negative for estrogen receptor-α and express low levels of progesterone receptors. LRCs sorted by FACS are able to form spheroids capable of self-renewal and differentiation. Upon serum stimulation spheroid cells are induced to differentiate and form glandular structures which express markers of mature Műllerian epithelial cells. Overall, the results indicate that quiescent cells located in the distal oviduct have stem-like properties and can differentiate into distinct cell lineages specific of endometrium, proximal and distal oviduct. Future lineage-tracing studies will elucidate the role played by these cells in homeostasis, tissue injury and cancer of the female reproductive tract in the mouse and eventually in man.
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Affiliation(s)
- Yongyi Wang
- Departments of Obstetrics & Gynecology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
- Department of Pathology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Andrea Sacchetti
- Department of Pathology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Matthijs R. van Dijk
- Departments of Obstetrics & Gynecology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Marten van der Zee
- Departments of Obstetrics & Gynecology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Paul H. van der Horst
- Departments of Obstetrics & Gynecology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Rosalie Joosten
- Department of Pathology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Curt W. Burger
- Departments of Obstetrics & Gynecology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
| | - J. Anton Grootegoed
- Department of Reproduction and Development, Erasmus MC, Rotterdam, The Netherlands
| | - Leen J. Blok
- Departments of Obstetrics & Gynecology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
- * E-mail: (RF); (LJB)
| | - Riccardo Fodde
- Department of Pathology, Josephine Nefkens Institute, Erasmus MC, Rotterdam, The Netherlands
- * E-mail: (RF); (LJB)
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PAX2 loss by immunohistochemistry occurs early and often in endometrial hyperplasia. Int J Gynecol Pathol 2012; 31:151-159. [PMID: 22317873 DOI: 10.1097/pgp.0b013e318226b376] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Immunohistochemical markers to assist in the diagnosis and classification of hyperplastic endometrial epithelial proliferations would be of diagnostic use. To examine the possible use of PAX2 as a marker of hyperplastic endometrium, cases of normal endometrium, simple and complex hyperplasia without atypia, atypical hyperplasia, and International Federation of Gynecology and Obstetrics (FIGO) grade 1 endometrioid carcinomas were stained for PAX2. Two hundred and six endometrial samples were available for interpretation of PAX2 staining. The percentage of cases with complete PAX2 loss (0% of cells staining) increased with increasing severity of hyperplasia: 0% of normal proliferative and secretory endometrium (n=28), 17.4% of simple hyperplasia (n=23), 59.0% of complex hyperplasia (n=83), 74.1% of atypical hyperplasia (n=54), and 73.3% of FIGO grade 1 endometrioid cancers (n=15). Partial loss of PAX2 expression did occur in normal endometrium (17.9%) but in smaller proportions of tissue and was less frequent than in simple hyperplasia (47.8% with partial loss), complex hyperplasia (32.5%), atypical hyperplasia (22.2%), and FIGO grade 1 carcinomas (20.0%). Uniform PAX2 expression was rare in complex (8.4%) and atypical hyperplasia (3.7%) and carcinoma (6.7%). When evaluating loss of PAX2 in histologically normal endometrium adjacent to lesional endometrium in a given case, statistically significant differences in staining were observed for simple hyperplasia (P=0.011), complex hyperplasia (P<0.001), atypical hyperplasia (P<0.001), and FIGO grade 1 endometrioid cancer (P=0.003). In summary, PAX2 loss seems to occur early in the development of endometrial precancers and may prove useful in some settings as a diagnostic marker in determining normal endometrium from complex and atypical hyperplasia and low-grade carcinomas. However, it is not useful in distinguishing between these diagnostic categories.
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de Graaff AA, Delvoux B, Van de Vijver KK, Kyama CM, D'Hooghe TM, Dunselman GAJ, Romano A. Paired-box gene 2 is down-regulated in endometriosis and correlates with low epidermal growth factor receptor expression. Hum Reprod 2012; 27:1676-84. [PMID: 22473392 DOI: 10.1093/humrep/des124] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Paired-box 2 (Pax2) is involved in the development of the female genital tract and has been associated with endometrial pathologies. The expression of Pax2 is induced by epidermal growth factor (EGF) and estrogens. In the present study, Pax2 expression and regulation were investigated in endometriosis. METHODS AND RESULTS Pax2 protein expression was assessed by immunohistochemistry in the eutopic (i.e. inside the uterus) and ectopic tissue (endometriosis) from 11 patients. Immunoreactivity was high in the endometrium, with strong epithelial and weaker stromal staining. Similar expression patterns of Pax2 were observed in the endometrium of women without endometriosis (n = 12). The mRNA level of Pax2 was assessed by real-time PCR in the eutopic and ectopic endometria of 14 patients and in the endometrium from women without endometriosis (n = 20). Pax2 expression was lower in endometriotic lesions than that in the eutopic endometrium of patients (P< 0.001) and controls (P= 0.007). Three possible mechanisms determining low Pax2 expression were investigated: EGF signalling, CpG DNA methylation of the Pax2 promoter and steroid response. The mRNA level of the EGF receptor (EGFR1) was assessed in the samples used for Pax2 mRNA assessment. A significant correlation between EGFR1 and Pax2 in both eutopic and ectopic tissues was observed (R = 0.58; slope regression line, 0.81; 95% CI: 0.09-1.52 and R = 0.54; slope regression line, 2.51; 95% CI: 0.02-4.99, respectively). CpG DNA methylation was analyzed by methyl-specific PCR in two regions of the Pax2 promoter but they were unmethylated in all samples. Steroid responsiveness was assessed using endometrial explant cultures and Pax2 was not regulated by either 17β-estradiol or progesterone. CONCLUSIONS In endometriosis patients, Pax2 is down-regulated in the lesions compared with the eutopic tissue, possibly due to low EGF signalling.
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Affiliation(s)
- A A de Graaff
- School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, The Netherlands
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Chang X, Qin Y, Xu C, Li G, Zhao X, Chen ZJ. Mutations in WNT4 are not responsible for Müllerian duct abnormalities in Chinese women. Reprod Biomed Online 2012; 24:630-3. [PMID: 22503279 DOI: 10.1016/j.rbmo.2012.03.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 03/01/2012] [Accepted: 03/01/2012] [Indexed: 10/28/2022]
Abstract
The WNT4 gene plays a crucial role in sexual differentiation and female genital tract development. This study screened WNT4 for mutation in 189 Chinese women with Müllerian duct abnormalities (10 Mayer-Rokitansky-Küster-Hauser syndrome, five Müllerian aplasia and 174 incomplete Müllerian fusion) and detected no perturbation that would indicate a major role for WNT4. Only one novel synonymous mutation (c.1091G>A) in exon 5 and one known single-nucleotide polymorphism (rs16826648) in exon 2 were found. The results suggest that WNT4 might not contribute to the aetiology of Müllerian duct abnormalities in Chinese women.
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Affiliation(s)
- Xinyue Chang
- Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, China
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Abstract
PAX genes have been shown to be critically required for the development of specific tissues and organs during embryogenesis. In addition, PAX genes are expressed in a handful of adult tissues where they are thought to play important roles, usually different from those in embryogenesis. A common theme in adult tissues is a requirement for PAX gene expression in adult stem cell maintenance or tissue regeneration. The connections between adult stem cell PAX gene expression and cancer are intriguing, and the literature is replete with examples of PAX gene expression in either situation. Here we systematically review the literature and present an overview of postnatal PAX gene expression in normal and cancerous tissue. We discuss the potential link between PAX gene expression in adult tissue and cancer. In addition, we discuss whether persistent PAX gene expression in cancer is favorable or unfavorable.
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Affiliation(s)
- Caiyun G Li
- Department of Pediatrics, Stanford University School of Medicine Stanford, CA, USA
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Kahraman K, Kiremitci S, Taskin S, Kankaya D, Sertcelik A, Ortac F. Expression pattern of PAX2 in hyperplastic and malignant endometrium. Arch Gynecol Obstet 2012; 286:173-8. [PMID: 22274645 DOI: 10.1007/s00404-012-2236-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Accepted: 01/17/2012] [Indexed: 01/05/2023]
Abstract
BACKGROUND PAX2 is a member of paired box gene family and expressed during development of urogenital system. This study aimed to evaluate PAX2 expression pattern in hyperplastic and malignant endometrial tissues in comparison to non-pathological endometrial changes and to investigate the presence of any correlation between the PAX2 expression and tumor behavior. METHODS The study was performed on the archival material of 121 endometrial tissues including complex hyperplasia (n = 18), complex atypical hyperplasia (n = 20), and endometrioid type adenocarcinoma (n = 47) as study groups, and proliferative endometrium (n = 21) and atrophic endometrium (n = 16) as control groups. One representative block for each case was selected for immunohistochemical evaluation. Sections with 4μm thickness were cut from the blocks and incubated with PAX2 rabbit anti-human polyclonal antibody. RESULTS PAX2 nuclear staining was detected in all of the endometrial tissues. The mean percentages of PAX2 staining cells were 80.8, 96.7, 88.6, 92.7, and 99.2% with proliferative endometrium, atrophic endometrium, complex hyperplasia, complex atypical hyperplasia, and adenocarcinoma, respectively (Kruskal-Wallis; P < 0.001). The frequency of PAX2 staining increased as the pathology progressed in the manner of complex hyperplasia → complex atypical hyperplasia → adenocarcinoma. In cancer cases, there was no correlation between PAX2 expression levels and the stage, histological grade, myometrial invasion, and lymph node status. CONCLUSIONS PAX2 is expressed in hyperplastic and malignant endometrium as well as proliferative and atrophic endometrium. As the neoplastic lesion progresses from a premalignant state to endometrial cancer, PAX2 expression increases. These findings suggest that PAX2 may contribute to the development of endometrial cancer.
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Affiliation(s)
- Korhan Kahraman
- Department of Obstetrics and Gynecology, Ankara University School of Medicine, Ankara, Turkey.
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Ye L, Evans J, Gargett CE. Lim1/LIM1 is expressed in developing and adult mouse and human endometrium. Histochem Cell Biol 2012; 137:527-36. [DOI: 10.1007/s00418-011-0909-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2011] [Indexed: 01/12/2023]
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Abstract
Ovarian serous borderline tumors (SBTs) are presumed to originate in the ovarian cortex or peritoneal surface. The pathogenetic role of the fallopian tube (FT) is unclear; however, recently, secretory cell outgrowths (SCOUTs) lacking PAX2 expression were described in benign FTs. This study addressed (1) the differentiation characteristics of SBTs and (2) the frequency of SCOUTs lacking PAX2 expression in the FTs of patients with SBTs and compared (3) SCOUT morphology and (4) PAX2 expression with SBTs. SBTs and FT epithelium shared both ciliated (p73) and secretory (HMFG2) differentiation. PAX2-null SCOUT frequency in FT cross-sections from patients with SBTs was 0.28 (110 of 398) versus 0.112 in benign hysterectomies and nearly 0 in pediatric and postpartum sterilization specimens (P = < 0.001). When adjusted for age, the differences narrowed but remained significant (P = 0.010). SCOUTs were heterogeneous, some displaying ciliated differentiation and papillary architecture. Two cases of discrete multifocal papillary SCOUTs in the FTs were associated with SBTs. All SBTs had heterogeneous PAX2 staining with areas of PAX2 loss. This study shows for the first time that PAX2-null SCOUTs are more common in the oviducts of women with SBTs and that loss of PAX2 expression occurs in most SBTs. These discoveries link both morphologic and functional gene (PAX2) alterations in the oviduct to SBTs, similar to that reported in high-grade serous carcinoma. Further study is warranted to clarify the relationship of the oviduct to serous neoplasia.
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Treviño LS, Giles JR, Wang W, Urick ME, Johnson PA. Gene expression profiling reveals differentially expressed genes in ovarian cancer of the hen: support for oviductal origin? Discov Oncol 2011; 1:177-86. [PMID: 21761365 DOI: 10.1007/s12672-010-0024-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Ovarian cancer has a high mortality rate due, in part, to the lack of early detection and incomplete understanding of the origin of the disease. The hen is the only spontaneous model of ovarian cancer and can therefore aid in the identification and testing of early detection strategies and therapeutics. Our aim was to combine the use of the hen animal model and microarray technology to identify differentially expressed genes in ovarian tissue from normal hens compared with hens with ovarian cancer. We found that the transcripts up-regulated in chicken ovarian tumors were enriched for oviduct-related genes. Quantitative real-time PCR and immunohistochemistry confirmed expression of oviduct-related genes in normal oviduct and in ovaries from hens with early- and late-stage ovarian tumors, but not in normal ovarian surface epithelium. In addition, one of the oviduct-related genes identified in our analysis, paired box 2 has been implicated in human ovarian cancer and may serve as a marker of the disease. Furthermore, estrogen receptor 1 mRNA is over-expressed in early-stage tumors, suggesting that expression of the oviduct-related genes may be regulated by estrogen. We have also identified oviduct-related genes that encode secreted proteins that could represent putative serum biomarkers. The expression of oviduct-related genes in early-stage tumors is similar to what is seen in human ovarian cancer, with tumors resembling normal Müllerian epithelium. These data suggest that chicken ovarian tumors may arise from alternative sites, including the oviduct.
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Ye L, Mayberry R, Lo CY, Britt KL, Stanley EG, Elefanty AG, Gargett CE. Generation of human female reproductive tract epithelium from human embryonic stem cells. PLoS One 2011; 6:e21136. [PMID: 21698266 PMCID: PMC3115988 DOI: 10.1371/journal.pone.0021136] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Accepted: 05/20/2011] [Indexed: 12/29/2022] Open
Abstract
Background Recent studies have identified stem/progenitor cells in human and mouse uterine epithelium, which are postulated to be responsible for tissue regeneration and proliferative disorders of human endometrium. These progenitor cells are thought to be derived from Müllerian duct (MD), the primordial female reproductive tract (FRT). Methodology/Principal Findings We have developed a model of human reproductive tract development in which inductive neonatal mouse uterine mesenchyme (nMUM) is recombined with green fluorescent protein (GFP)-tagged human embryonic stem cells (hESCs); GFP-hESC (ENVY). We demonstrate for the first time that hESCs can be differentiated into cells with a human FRT epithelial cell phenotype. hESC derived FRT epithelial cells emerged from cultures containing MIXL1+ mesendodermal precursors, paralleling events occurring during normal organogenesis. Following transplantation, nMUM treated embryoid bodies (EBs) generated epithelial structures with a typical MD phenotype that expressed the MD markers PAX2, HOXA10. Functionally, the hESCs derived FRT epithelium responded to exogenous estrogen by proliferating and secreting uterine-specific glycodelin A (GdA). Conclusions/Significance These data show nMUM can induce differentiation of hESC to form the FRT epithelium. This may provide a model to study early developmental events of the human FRT.
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Affiliation(s)
- Louie Ye
- The Ritchie Centre, Monash Institute of Medical Research and Department of Obstetrics and Gynecology, Monash University, Melbourne, Australia
| | - Robyn Mayberry
- Monash Immunology and Stem Cell Laboratories, Monash University, Melbourne, Australia
| | - Camden Y. Lo
- Monash Micro Imaging, Monash University, Melbourne, Australia
| | - Kara L. Britt
- Anatomy and Developmental Biology, Monash University, Melbourne, Australia
| | - Edouard G. Stanley
- Monash Immunology and Stem Cell Laboratories, Monash University, Melbourne, Australia
| | - Andrew G. Elefanty
- Monash Immunology and Stem Cell Laboratories, Monash University, Melbourne, Australia
| | - Caroline E. Gargett
- The Ritchie Centre, Monash Institute of Medical Research and Department of Obstetrics and Gynecology, Monash University, Melbourne, Australia
- * E-mail:
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Kalloger SE, Köbel M, Leung S, Mehl E, Gao D, Marcon KM, Chow C, Clarke BA, Huntsman DG, Gilks CB. Calculator for ovarian carcinoma subtype prediction. Mod Pathol 2011; 24:512-21. [PMID: 21131918 DOI: 10.1038/modpathol.2010.215] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
With the emerging evidence that the five major ovarian carcinoma subtypes (high-grade serous, clear cell, endometrioid, mucinous, and low-grade serous) are distinct disease entities, management of ovarian carcinoma will become subtype specific in the future. In an effort to improve diagnostic accuracy, we set out to determine if an immunohistochemical panel of molecular markers could reproduce consensus subtype assignment. Immunohistochemical expression of 22 biomarkers were examined on tissue microarrays constructed from 322 archival ovarian carcinoma samples from the British Columbia Cancer Agency archives, for the period between 1984 and 2000, and an independent set of 242 cases of ovarian carcinoma from the Gynaecologic Tissue Bank at Vancouver General Hospital from 2001 to 2008. Nominal logistic regression was used to produce a subtype prediction model for each of these sets of cases. These models were then cross-validated against the other cohort, and then both models were further validated in an independent cohort of 81 ovarian carcinoma samples from five different centers. Starting with data for 22 markers, full model fit, backwards, nominal logistic regression identified the same nine markers (CDKN2A, DKK1, HNF1B, MDM2, PGR, TFF3, TP53, VIM, WT1) as being most predictive of ovarian carcinoma subtype in both the archival and tumor bank cohorts. These models were able to predict subtype in the respective cohort in which they were developed with a high degree of sensitivity and specificity (κ statistics of 0.88±0.02 and 0.86±0.04, respectively). When the models were cross-validated (ie using the model developed in one case series to predict subtype in the other series), the prediction equation's performances were reduced (κ statistics of 0.70±0.04 and 0.61±0.04, respectively) due to differences in frequency of expression of some biomarkers in the two case series. Both models were then validated on the independent series of 81 cases, with very good to excellent ability to predict subtype (κ=0.85±0.06 and 0.78±0.07, respectively). A nine-marker immunohistochemical maker panel can be used to objectively support classification into one of the five major subtypes of ovarian carcinoma.
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Al-Agha OM, Blake Gilks C. High-Grade Serous Carcinoma Involving Fallopian Tube, Ovary and Peritoneum. Surg Pathol Clin 2011; 4:375-396. [PMID: 26837299 DOI: 10.1016/j.path.2010.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The focus of this review is high-grade serous carcinoma (HGSC); for the purposes of this review, the term "pelvic SC" is used for HGSC that could be considered, based on historical definitions, to have arisen from ovary, fallopian tube, or peritoneum. These assignments of primary site are arbitrary and there is evidence that the distal fallopian tube is the site of origin of many pelvic HGSCs. The diagnosis of HGSC can be made readily based on routine histomorphologic examination in most cases; however, a variety of neoplasms can resemble HGSC. Thus, we review the key features of pelvic SC, current concepts of its pathogenesis, histopathological diagnostic criteria, discuss differential diagnosis, and review diagnostic ancillary studies that can be used in practice.
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Affiliation(s)
- Osama M Al-Agha
- Department of Pathology and Laboratory Medicine, Vancouver General Hospital and University of British Columbia, Vancouver, BC, Canada
| | - C Blake Gilks
- Department of Pathology and Laboratory Medicine, Vancouver General Hospital and University of British Columbia, Vancouver, BC, Canada.
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Tumors and pseudotumors of the secondary müllerian system: review with emphasis on cross-sectional imaging findings. AJR Am J Roentgenol 2011; 195:1452-9. [PMID: 21098209 DOI: 10.2214/ajr.10.4302] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Microscopic structures lined by müllerian epithelium are frequently seen outside the uterus and fallopian tubes and are termed "müllerian rests" or "secondary müllerian system." Varied entities ranging from benign endosalpingosis to highly malignant ovarian tumors are thought to be derived from the secondary müllerian system. Cross-sectional imaging findings of diseases and disorders of the secondary müllerian system are presented here. CONCLUSION Familiarity with a wide spectrum of diseases and disorders of the secondary müllerian system allows accurate diagnosis and management.
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Knoepp SM, Kunju LP, Roh MH. Utility of PAX8 and PAX2 immunohistochemistry in the identification of renal cell carcinoma in diagnostic cytology. Diagn Cytopathol 2010; 40:667-72. [PMID: 22807381 DOI: 10.1002/dc.21590] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Accepted: 10/14/2010] [Indexed: 11/09/2022]
Abstract
The diagnosis of metastatic renal cell carcinoma (RCC) in cytology specimens may be difficult to confirm on the basis of cytomorphology alone. Often, immunohistochemistry serves as an important adjunct in confirming this diagnosis. Recently, PAX2 was shown to be useful in this regard. In this study, we sought to compare the utility of PAX8 to that of PAX2 immunohistochemistry in the diagnosis of RCC in cytology specimens. First, we verified the performance of PAX8 immunohistochemistry on a tissue microarray (TMA) composed of 54 cases of RCC; PAX8 immunoreactivity was seen in at least 10% of the tumor cells in all cases. Next, we applied PAX8 immunohistochemistry to cell block sections prepared from 24 cases of RCC, obtained from fine-needle aspirates and effusion specimens. PAX2 immunohistochemistry was performed for comparison. Immunopositivity was defined as the presence of nuclear staining in at least 10% of tumor cell nuclei. Immunoreactivity for PAX8 and PAX2 was seen in 21 (88%) and 20 (83%) of the 24 cases, respectively. The presence of either PAX8 or PAX2 immunostaining was present in 22 of 24 cases, thus showing a total sensitivity of 92%. Overall, the results indicate that PAX8 and PAX2 are diagnostically useful adjuncts in confirming the diagnosis of RCC in cytology specimens.
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Affiliation(s)
- Stewart M Knoepp
- Department of Pathology, University of Michigan Medical School, 1500E. Medical Center Drive, Ann Arbor, MI 48109, USA
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Chivukula M, Niemeier LA, Edwards R, Nikiforova M, Mantha G, McManus K, Carter G. Carcinomas of Distal Fallopian Tube and Their Association with Tubal Intraepithelial Carcinoma: Do They Share a Common "Precursor" Lesion? Loss of Heterozygosity and Immunohistochemical Analysis Using PAX 2, WT-1, and P53 Markers. ISRN OBSTETRICS AND GYNECOLOGY 2010; 2011:858647. [PMID: 21826275 PMCID: PMC3149410 DOI: 10.5402/2011/858647] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Accepted: 10/19/2010] [Indexed: 12/20/2022]
Abstract
As the role of distal fallopian tube as organ of serous carcinogenesis is emerging, additional literature on the role of tubal intraepithelial carcinoma (TIC) as a precursor lesion in a subset of primary peritoneal serous carcinomas (PPSC is emerging as well. TIC although fallopian tube in origin can be genetically related to ovarian/peritoneal carcinomas. The role of PAX2 in primary fallopian tube carcinomas (PFTC)/PPSC is yet to be defined. The aim of our study was to understand if the biologic properties of tumors arising in the distal fallopian tube that remain as PFTC are different when they seed on to the peritoneal surface (PPSC). A panel of 6 polymorphic microsatellite markers corresponding to p53, PAX2, and WT1 tumor suppressor genes were studied. Invasive carcinomas as well as TIC arising in the distal fallopian tube when remain as PFTC appears to exhibit different LOH patterns in comparison to PPSC. PAX 2 LOH patterns might represent a “hidden PAX 2 signature” analogous to p53 signatures. PAX 2 might be an emerging marker for detection of early serous carcinomas particularly in BRCA + women.
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Affiliation(s)
- Mamatha Chivukula
- Department of Pathology, Magee Womens Hospital of UPMC, 300 Halket Street, Pittsburgh, PA 15213, USA
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Molecular Characterization of 103 Ovarian Serous and Mucinous Tumors. Pathol Oncol Res 2010; 17:551-9. [PMID: 21136228 DOI: 10.1007/s12253-010-9345-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Accepted: 11/24/2010] [Indexed: 10/18/2022]
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Characterization of a New Monoclonal Antibody Against PAX5/BASP in 1525 Paraffin-embedded Human and Animal Tissue Samples. Appl Immunohistochem Mol Morphol 2010; 18:561-72. [PMID: 20697266 DOI: 10.1097/pai.0b013e3181e79013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION We describe the newly generated DAK-PAX5 monoclonal antibody raised against a fixation-resistant epitope of the human PAX5/BSAP molecule. MATERIALS AND METHODS Following Western-blot, absorption, and chess-board titration tests, and optimization of antigen-retrieval and detection methods, DAK-Pax5 was used in parallel with a reference antibody (clone 24) on tissue micro-arrays (TMAs) constructed from normal human and animal tissues and from hematologic and nonhematologic human malignancies. Such TMAs were also tested with an anti-PAX2 antibody. RESULTS DAK-Pax5 reacted with normal human and animal B-cells and with 460/473 B-cell non-Hodgkin lymphomas (B-NHLs). All plasmacytomas/plasmablastic tumors (n=13) and T/NK-cell neoplasms (n=264) turned out consistently negative as did acute myelogenous leukaemias (n=19) except 2 carrying t(8;21). Positivity was found in 6/6 and 155/169 lymphocyte predominant and classical HLs, respectively, although the staining intensity varied through cases. Among 521 nonhematologic malignancies, DAK-Pax5 reacted with 22/399 carcinomas (4/11 neuroendocrine, 2/4 Merkel-cell, 4/21 prostatic, 1/11 urothelial, 1/26 renal, 2/12 cervical squamous-cell, 3/13 ovarian, and 5/75 colonic). When compared with clone 24, DAK-Pax5 produced a stronger positivity in most if not all B-NHLs and HLs. No cross-reactivity with the anti-PAX2 antibody was recorded. DISCUSSION DAK-Pax5 represents a new reliable tool for diagnostics and research.
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The Utility of Pax-2 and Renal Cell Carcinoma Marker Immunohistochemistry in Distinguishing Papillary Renal Cell Carcinoma From Nonrenal Cell Neoplasms With Papillary Features. Appl Immunohistochem Mol Morphol 2010; 18:494-8. [DOI: 10.1097/pai.0b013e3181e78ff8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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The use of immunohistochemistry in the diagnosis of metastatic clear cell renal cell carcinoma: a review of PAX-8, PAX-2, hKIM-1, RCCma, and CD10. Adv Anat Pathol 2010; 17:377-93. [PMID: 20966644 DOI: 10.1097/pap.0b013e3181f89400] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The diagnosis of metastatic clear cell renal cell carcinoma may be difficult in some cases, particularly in the small image-guided biopsies that are becoming more common. As targeted therapies for renal cell carcinoma are now standard treatment, the recognition and diagnosis of renal cell carcinoma has become even more critical. Many adjunctive immunohistochemical markers of renal epithelial lineage such as CD10 and RCCma have been proposed as aids in the diagnosis of metastatic renal cell carcinoma, but low specificities often limit their utility. More recently described markers (PAX-2, PAX-8, human kidney injury molecule-1, hepatocyte nuclear factor-1-β, and carbonic anhydrase-IX) offer the potential for greater sensitivity and specificity in this diagnostic setting; however, knowledge of their expected staining in other neoplasms and tissues is critical for appropriate use. In this review, we discuss the most widely used immunohistochemical markers of renal lineage with an emphasis on their sensitivity and specificity for metastatic clear cell renal cell carcinoma. Subsequently, we present a variety of organ-specific differential diagnostic scenarios in which metastatic clear cell renal cell carcinoma might be considered and we propose immunopanels for use in each situation.
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