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Wang JX, Shen DH, Zhang XB. CXCR4 expression and clinicopathological features of endometrial endometrioid carcinoma with the microcystic, elongated, and fragmented pattern. World J Clin Cases 2025; 13:103841. [DOI: 10.12998/wjcc.v13.i21.103841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2024] [Revised: 03/19/2025] [Accepted: 03/20/2025] [Indexed: 04/27/2025] Open
Abstract
BACKGROUND The microcystic, elongated, and fragmented (MELF) pattern of invasion in endometrioid endometrial carcinoma (EEC) is a special mode of myometrial invasion that has been recently recognized by the pathology community. Overexpression of CXC chemokine receptor 4 (CXCR4) in tumor cells contributes to tumor growth, invasion, angiogenesis, metastasis, and recurrence.
AIM To explore the correlation between CXCR4 expression in EEC and MELF invasion and clinicopathological features.
METHODS A total of 205 EEC patients treated at Peking University People’s Hospital from June 2020 to December 2021 were selected (60 cases with MELF invasion, 145 cases without). The clinicopathological features of the two groups were compared, and expression of CXCR4 protein, estrogen receptor, and progesterone receptor was detected and compared by immunohistochemistry.
RESULTS EEC with MELF invasion was significantly associated with low tumor grade, lymphovascular space invasion, deep myometrial invasion, cervical stromal involvement, and lymph node metastasis. There was a difference in CXCR4 expression between the two groups, with the MELF group having a significantly higher expression than the non-MELF group.
CONCLUSION CXCR4 expression is significantly increased in EEC with MELF invasion and in the MELF invasion area, which may promote tumor invasion and metastasis and has some value for prognostic assessment.
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Affiliation(s)
- Ji-Xian Wang
- Department of Pathology, Peking University People’s Hospital, Beijing 100044, China
| | - Dan-Hua Shen
- Department of Pathology, Peking University People’s Hospital, Beijing 100044, China
| | - Xiao-Bo Zhang
- Department of Pathology, Peking University People’s Hospital, Beijing 100044, China
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2
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Vasilevska D, Rudaitis V, Lewkowicz D, Širvienė D, Mickys U, Semczuk M, Obrzut B, Semczuk A. Expression Patterns of Cytokeratins (CK7, CK20, CK19, CK AE1/AE3) in Atypical Endometrial Hyperplasia Coexisting with Endometrial Cancer. Int J Mol Sci 2024; 25:9084. [PMID: 39201770 PMCID: PMC11354644 DOI: 10.3390/ijms25169084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 07/31/2024] [Accepted: 08/17/2024] [Indexed: 09/03/2024] Open
Abstract
Few studies have evaluated cytokeratin's (CK) staining patterns in atypical endometrial hyperplasia (AEH) coexisting with early-stage endometrial cancer (EC). We aimed to assess the staining patterns of selected CKs (CK7, CK19, CK20, CK AE1/AE3) in 74 patients with coexisting AEH and EC by independently analyzing both morphological variables. Specimens were collected from women with AEH and EC who underwent surgical interventions between 2012 and 2019 at the Department of Obstetrics and Gynecology of Vilnius University Hospital "Santaros Klinikos" in Vilnius, Lithuania. Immunostaining was also qualitatively classified as being heterogeneous or intense. The results revealed heterogeneous CK7 expression in all AEH cases and intense staining in 95.95% cases of AEH. The heterogeneous expression of CK7 was detected in all EC specimens. Intense CK7 expression was observed in 95.09% cases of EC G1 and in all G2 ECs. Heterogenous CK19 expression was present in all AEH specimens with intense staining in 92.42% of cases. Heterogeneous CK19 expression was observed in all EC samples with intense expression in 86.27% cases of EC G1 and 100% cases of EC G2. Interestingly, a significant relationship was found when comparing the heterogeneous expression of CK19 between AEH and well-differentiated EC. A significant difference was reported in the intense expression of CK AE1/AE3 (p = 0.031; p = 0.029) between AEH and G2 ECs and in the intense expression of CK AE1/AE3 between G1 and G2 ECs. CK20 staining was not a characteristic feature for AEH and early-stage EC. CK staining is present either in AEH or in early-stage endometrioid-subtype EC in different manners. Heterogeneous CK19 expression was significantly more common in AEH than in EC. CK20 expression was not associated with either AEH nor early-stage EC. An intense expression of CK AE1/AE3 was mainly present in moderately differentiated ECs, whereas the intense reactivity of AE1/AE3 showed a significant difference in well to moderately differentiated uterine tumors. The clinical implication of CK staining may aid in the more accurate diagnosis of AEH and early-stage EC as well as detect micrometastases leading to better oncological outcomes.
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Affiliation(s)
- Danuta Vasilevska
- Department of Gynecology, Vilnius University Hospital “Santaros Klinikos”, 08406 Vilnius, Lithuania
| | - Vilius Rudaitis
- Faculty of Medicine, Vilnius University, 03101 Vilnius, Lithuania
| | - Dorota Lewkowicz
- Department of Clinical Pathology, Lublin Medical University, 20-090 Lublin, Poland
| | | | - Ugnius Mickys
- National Centre of Pathology, Vilnius University Hospital “Santaros Klinikos”, 08406 Vilnius, Lithuania;
| | - Marek Semczuk
- Faculty of Medicine, Radom University, 26600 Radom, Poland
| | - Bogdan Obrzut
- Department of Obstetrics and Gynecology, Institute of Medical Sciences, Medical College, University of Rzeszow, 35-301 Rzeszow, Poland;
| | - Andrzej Semczuk
- IInd Department of Gynecological Surgery and Gynecological Oncology, Lublin Medical University, 20090 Lublin, Poland
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3
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van den Heerik ASVM, Aiyer KTS, Stelloo E, Jürgenliemk-Schulz IM, Lutgens LCHW, Jobsen JJ, Mens JWM, van der Steen-Banasik EM, Creutzberg CL, Smit VTHBM, Horeweg N, Bosse T. Microcystic elongated and fragmented (MELF) pattern of invasion: Molecular features and prognostic significance in the PORTEC-1 and -2 trials. Gynecol Oncol 2022; 166:530-537. [PMID: 35840357 DOI: 10.1016/j.ygyno.2022.06.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/24/2022] [Accepted: 06/26/2022] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Microcystic, elongated fragmented (MELF) pattern of myometrial invasion is a distinct histologic feature occasionally seen in low-grade endometrial carcinomas (EC). The prognostic relevance of MELF invasion was uncertain due to conflicting data, and it had not yet appropriately been studied in the context of the molecular EC classification. We aimed to determine the relation of MELF invasion with clinicopathological and molecular characteristics, and define its prognostic relevance in early-stage low/intermediate risk EC. METHODS Single whole tumor slides of 979 (85.8%) out of 1141 (high)intermediate-risk EC of women who participated in the PORTEC-1/-2 trials were available for review. Clinicopathological and molecular features were compared between MELF invasion positive and negative cases. Time-to-event analyses were done by Kaplan-Meier method, log-rank tests and Cox' proportional hazards models. RESULTS MELF invasion was found in 128 (13.1%) cases, and associated with grade 1-2 histology, deep myometrial invasion and substantial lymph-vascular space invasion (LVSI). 85.6% of MELF invasion positive tumors were no-specific-molecular-profile (NSMP) EC. NSMP EC with MELF invasion were CTNNB1 wild type in 92.2% and KRAS mutated in 24.4% of cases. Risk of recurrence was lower for MELF invasion positive as compared to MELF invasion negative cases (4.9% vs. 12.7%, p = 0.026). However, MELF invasion had no independent impact on risk of recurrence (HR 0.65, p = 0.30) after correction for clinicopathological and molecular factors. CONCLUSIONS MELF invasion has no independent impact on risk of recurrence in early-stage EC, and is frequently observed in low-grade NSMP tumors. Routine assessment of MELF invasion has no clinical implications and is not recommended.
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Affiliation(s)
- A S V M van den Heerik
- Department of Radiation Oncology, Leiden University Medical Center, Leiden, the Netherlands
| | - K T S Aiyer
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | - E Stelloo
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | - I M Jürgenliemk-Schulz
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - L C H W Lutgens
- Department of Radiation Oncology, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - J J Jobsen
- Department of Radiation Oncology, Medisch Spectrum Twente, Enschede, the Netherlands
| | - J W M Mens
- Department of Radiotherapy, Erasmus MC Cancer Institute, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | | | - C L Creutzberg
- Department of Radiation Oncology, Leiden University Medical Center, Leiden, the Netherlands
| | - V T H B M Smit
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | - N Horeweg
- Department of Radiation Oncology, Leiden University Medical Center, Leiden, the Netherlands
| | - T Bosse
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands.
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4
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Bian PP, Liu SY, Luo QP, Xiong ZT. YTHDF2 is a novel diagnostic marker of endometrial adenocarcinoma and endometrial atypical hyperplasia/ intraepithelial neoplasia. Pathol Res Pract 2022; 234:153919. [DOI: 10.1016/j.prp.2022.153919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/14/2022] [Accepted: 04/24/2022] [Indexed: 11/15/2022]
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5
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Patterns of Myometrial Invasion in Endometrial Adenocarcinoma with Emphasizing on Microcystic, Elongated and Fragmented (MELF) Glands Pattern: A Narrative Review of the Literature. Diagnostics (Basel) 2021; 11:diagnostics11091707. [PMID: 34574048 PMCID: PMC8469256 DOI: 10.3390/diagnostics11091707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 09/15/2021] [Accepted: 09/15/2021] [Indexed: 11/17/2022] Open
Abstract
Endometrioid endometrial adenocarcinoma (EEC) is the most common malignancy of the female genital tract. According to the 2009 FIGO staging system, the depth of myometrial invasion (MI), and tumor spread to adjacent organs or tissues are the staging criteria for endometrial carcinoma (EC). Therefore, assessment of the depth of MI is of great importance. There is a spectrum of morphological patterns of MI. Still, their number and features vary according to the scientific literature, with a certain overlap that creates difficulties and controversies in the precise assessment of MI depth. The purpose of this review is to present and discuss the most important and recent information about patterns of MI, focusing on the more aggressive and the elongated and fragmented glands (MELF) pattern in particular. Assessment of MI depth and correct staging of EC is possible only after the precise recognition of each MI pattern.
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6
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Zhai L, Zhang X, Cui M, Wang J. Sentinel Lymph Node Mapping in Endometrial Cancer: A Comprehensive Review. Front Oncol 2021; 11:701758. [PMID: 34268126 PMCID: PMC8276058 DOI: 10.3389/fonc.2021.701758] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/01/2021] [Indexed: 12/27/2022] Open
Abstract
Endometrial cancer (EC) is known as a common gynecological malignancy. The incidence rate is on the increase annually. Lymph node status plays a crucial role in evaluating the prognosis and selecting adjuvant therapy. Currently, the patients with high-risk (not comply with any of the following: (1) well-differentiated or moderately differentiated, pathological grade G1 or G2; (2) myometrial invasion< 1/2; (3) tumor diameter < 2 cm are commonly recommended for a systematic lymphadenectomy (LAD). However, conventional LAD shows high complication incidence and uncertain survival benefits. Sentinel lymph node (SLN) refers to the first lymph node that is passed by the lymphatic metastasis of the primary malignant tumor through the regional lymphatic drainage pathway and can indicate the involvement of lymph nodes across the drainage area. Mounting evidence has demonstrated a high detection rate (DR), sensitivity, and negative predictive value (NPV) in patients with early-stage lower risk EC using sentinel lymph node mapping (SLNM) with pathologic ultra-staging. Meanwhile, SLNM did not compromise the patient’s progression-free survival (PFS) and overall survival (OS) with low operative complications. However, the application of SLNM in early-stage high-risk EC patients remains controversial. As revealed by the recent studies, SLNM may also be feasible, effective, and safe in high-risk patients. This review aims at making a systematic description of the progress made in the application of SLNM in the treatment of EC and the relevant controversies, including the application of SLNM in high-risk patients.
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Affiliation(s)
- Lirong Zhai
- Department of Gynecology and Obstetrics, Peking University People's Hospital, Beijing, China
| | - Xiwen Zhang
- Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, China
| | - Manhua Cui
- Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, China
| | - Jianliu Wang
- Department of Gynecology and Obstetrics, Peking University People's Hospital, Beijing, China
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7
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Menz A, Bauer R, Kluth M, Marie von Bargen C, Gorbokon N, Viehweger F, Lennartz M, Völkl C, Fraune C, Uhlig R, Hube-Magg C, De Wispelaere N, Minner S, Sauter G, Kind S, Simon R, Burandt E, Clauditz T, Lebok P, Jacobsen F, Steurer S, Wilczak W, Krech T, Marx AH, Bernreuther C. Diagnostic and prognostic impact of cytokeratin 19 expression analysis in human tumors: a tissue microarray study of 13,172 tumors. Hum Pathol 2021; 115:19-36. [PMID: 34102222 DOI: 10.1016/j.humpath.2021.05.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 05/27/2021] [Indexed: 12/13/2022]
Abstract
To evaluate cytokeratin 19 (CK19) expression in normal and cancerous tissues, 15,977 samples from 122 tumor types and 608 samples of 76 normal tissue types were analyzed by immunohistochemistry (IHC). In normal tissues, CK19 expression occurred in epithelial cells of most glandular organs but was strictly limited to the basal cell layer of nonkeratinizing squamous epithelium and absent in the skin. CK19 expression in ≥90% of cases was seen in 34% of the tumor entities including the adenocarcinomas of the pancreas (99.4%), colorectum (99.8%), esophagus (98.7%), and stomach (97.7%), as well as breast cancer (90.0%-100%), high-grade serous (99.1%) or endometrioid (97.8%) ovarian cancer, and urothelial carcinoma (92.6%-100%). A low CK19 positivity rate (0.1-10%) was seen in 5 of 122 tumor entities including hepatocellular carcinoma and seminoma. A comparison of tumor versus normal tissue findings demonstrated that upregulation and downregulation of CK19 can occur in cancer and that both alterations can be linked to unfavorable phenotypes. CK19 downregulation was linked to high grade (p = 0.0017) and loss of estrogen receptor- and progesterone receptor-expression (p < 0.0001 each) in invasive breast carcinoma of no special type. CK19 upregulation was linked to nodal metastases in neuroendocrine tumors and papillary thyroid carcinomas (p < 0.05 each) and to poor grade in clear cell renal cell carcinoma (p < 0.05). CK19 upregulation was particularly common in squamous cell carcinomas. We concluded that CK19 IHC might separate primary liver cell carcinoma from liver metastases, seminoma from other testicular tumors, and helps in the detection of early neoplastic transformation in squamous epithelium.
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Affiliation(s)
- Anne Menz
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Rifka Bauer
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Martina Kluth
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Clara Marie von Bargen
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Natalia Gorbokon
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Florian Viehweger
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Maximilian Lennartz
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Cosima Völkl
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Christoph Fraune
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Ria Uhlig
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Claudia Hube-Magg
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Noémi De Wispelaere
- Department and Clinic of Surgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Sarah Minner
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Guido Sauter
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Simon Kind
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Ronald Simon
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Eike Burandt
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Till Clauditz
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Patrick Lebok
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Frank Jacobsen
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Stefan Steurer
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Waldemar Wilczak
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Till Krech
- Institute of Pathology, Clinical Center Osnabrueck, 49076 Osnabrueck, Germany
| | - Andreas H Marx
- Department of Pathology, Academic Hospital Fuerth, 90766 Fuerth Germany
| | - Christian Bernreuther
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
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8
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POLE mutation combined with microcystic, elongated and fragmented (MELF) pattern invasion in endometrial carcinomas might be associated with poor survival in Chinese women. Gynecol Oncol 2020; 159:36-42. [PMID: 32800323 DOI: 10.1016/j.ygyno.2020.07.102] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/24/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE POLE mutation is a prognostic marker associated with excellent outcome in endometrial carcinoma (EC). However, these EC tumors frequently have aggressive histology. The aim of this study was to determine how to integrate the implications of POLE mutations into existing risk assessment strategies and further stratify patients. METHODS We detected POLE mutations in a cohort of 426 ECs from Chinese women and observed their prognostic significance in terms of survival and recurrence outcomes in combination with histological and other molecular characteristics, including microcystic, elongated and fragmented (MELF) pattern invasion, histologic subtype, tumor grade, myometrial invasion and p53 protein and mismatch repair protein expression status. RESULTS POLE mutations were identified in 38 of 426 ECs (8.9%). The most common mutations were P286R (31.6%), V411L (15.8%) and Q453R (15.8%). We confirmed that POLE mutation was associated with improved overall survival (P = .047), although it did not show a statistically significant relationship with progression-free survival (P = .45). Interestingly, further analyses indicated that in POLE-mutant tumors, MELF pattern invasion was associated with a 15.1-fold increase in tumor recurrence or progression risk (HR = 15.1, 95%CI = 1.57-145.3, P = .018), whereas this phenomenon was not present in the POLE-wild-type subgroup (HR = 0.90, 95%CI = 0.39-2.08, P = .80). Furthermore, higher staging and deeper myometrial invasion also showed much higher risk in patients harboring POLE mutations compared with those without POLE mutations. CONCLUSIONS Although POLE mutation was associated with favorable overall survival, the combined consideration of POLE mutation status and established clinicopathologic factors in the risk assessment of endometrial cancer is more accurate than the consideration of clinicopathologic factors alone and might lead to precise and individualized therapeutic strategies.
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9
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Gauci ML, Hua C, Ortonne N, Boussion H, Zehou O, Wolkenstein P, Chosidow O. Cervical cutaneous sclerosis: the stomach is not far from the skin. J Eur Acad Dermatol Venereol 2019; 33:e177-e179. [PMID: 30653760 DOI: 10.1111/jdv.15432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M L Gauci
- Department of Dermatology, Hôpitaux de Paris, Henri Mondor Hospital, Créteil, France.,UPEC Université Paris-Est Créteil Val de Marne, Créteil, France
| | - C Hua
- Department of Dermatology, Hôpitaux de Paris, Henri Mondor Hospital, Créteil, France.,UPEC Université Paris-Est Créteil Val de Marne, Créteil, France
| | - N Ortonne
- UPEC Université Paris-Est Créteil Val de Marne, Créteil, France.,Department of Pathology, Hôpitaux de Paris, Henri Mondor Hospital, Créteil, France
| | - H Boussion
- UPEC Université Paris-Est Créteil Val de Marne, Créteil, France.,Department of Oncology, Hôpitaux de Paris, Henri Mondor Hospital, Créteil, France
| | - O Zehou
- Department of Dermatology, Hôpitaux de Paris, Henri Mondor Hospital, Créteil, France.,UPEC Université Paris-Est Créteil Val de Marne, Créteil, France
| | - P Wolkenstein
- Department of Dermatology, Hôpitaux de Paris, Henri Mondor Hospital, Créteil, France.,UPEC Université Paris-Est Créteil Val de Marne, Créteil, France
| | - O Chosidow
- Department of Dermatology, Hôpitaux de Paris, Henri Mondor Hospital, Créteil, France.,UPEC Université Paris-Est Créteil Val de Marne, Créteil, France
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10
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Lipka A, Paukszto L, Majewska M, Jastrzebski JP, Myszczynski K, Panasiewicz G, Szafranska B. Identification of differentially expressed placental transcripts during multiple gestations in the Eurasian beaver (Castor fiber L.). Reprod Fertil Dev 2018; 29:2073-2084. [PMID: 28193317 DOI: 10.1071/rd16186] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 12/22/2016] [Indexed: 12/26/2022] Open
Abstract
The Eurasian beaver is one of the largest rodents that, despite its high impact on the environment, is a non-model species that lacks a reference genome. Characterising genes critical for pregnancy outcome can serve as a basis for identifying mechanisms underlying effective reproduction, which is required for the success of endangered species conservation programs. In the present study, high-throughput RNA sequencing (RNA-seq) was used to analyse global changes in the Castor fiber subplacenta transcriptome during multiple pregnancy. De novo reconstruction of the C. fiber subplacenta transcriptome was used to identify genes that were differentially expressed in placentas (n=5) from two females (in advanced twin and triple pregnancy). Analyses of the expression values revealed 124 contigs with significantly different expression; of these, 55 genes were identified using MegaBLAST. Within this group of differentially expressed genes (DEGs), 18 were upregulated and 37 were downregulated in twins. Most DEGs were associated with the following gene ontology terms: cellular process, single organism process, response to stimulus, metabolic process and biological regulation. Some genes were also assigned to the developmental process, the reproductive process or reproduction. Among this group, four genes (namely keratin 19 (Krt19) and wingless-type MMTV integration site family - member 2 (Wnt2), which were downregulated in twins, and Nik-related kinase (Nrk) and gap junction protein β2 (Gjb2), which were upregulated in twins) were assigned to placental development and nine (Krt19, Wnt2 and integrin α7 (Itga7), downregulated in twins, and Nrk, gap junction protein β6 (Gjb6), GATA binding protein 6 (Gata6), apolipoprotein A-I (ApoA1), apolipoprotein B (ApoB) and haemoglobin subunit α1 (HbA1), upregulated in twins) were assigned to embryo development. The results of the present study indicate that the number of fetuses affects the expression profile in the C. fiber subplacental transcriptome. Enhancement of transcriptomic resources for C. fiber will improve understanding of the pathways relevant to proper placental development and successful reproduction.
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Affiliation(s)
- A Lipka
- Department of Animal Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego Str 1A, 10-719 Olsztyn-Kortowo, Poland
| | - L Paukszto
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego Str 1A, 10-719 Olsztyn-Kortowo, Poland
| | - M Majewska
- Department of Human Physiology, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, Warszawska Str 30, 10-082 Olsztyn, Poland
| | - J P Jastrzebski
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego Str 1A, 10-719 Olsztyn-Kortowo, Poland
| | - K Myszczynski
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego Str 1A, 10-719 Olsztyn-Kortowo, Poland
| | - G Panasiewicz
- Department of Animal Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego Str 1A, 10-719 Olsztyn-Kortowo, Poland
| | - B Szafranska
- Department of Animal Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego Str 1A, 10-719 Olsztyn-Kortowo, Poland
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11
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Fanfani F, Monterossi G, Ghizzoni V, Rossi ED, Dinoi G, Inzani F, Fagotti A, Gueli Alletti S, Scarpellini F, Nero C, Santoro A, Scambia G, Zannoni GF. One-Step Nucleic Acid Amplification (OSNA): A fast molecular test based on CK19 mRNA concentration for assessment of lymph-nodes metastases in early stage endometrial cancer. PLoS One 2018; 13:e0195877. [PMID: 29698418 PMCID: PMC5919630 DOI: 10.1371/journal.pone.0195877] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 03/30/2018] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION The aim of the current study is to evaluate the detection rate of micro- and macro-metastases of the One-Step Nucleic Acid Amplification (OSNA) compared to frozen section examination and subsequent ultra-staging examination in early stage endometrial cancer (EC). MATERIAL AND METHODS From March 2016 to June 2016, data of 40 consecutive FIGO stage I EC patients were prospectively collected in an electronic database. The sentinel lymph node mapping was performed in all patients. All mapped nodes were removed and processed. Sentinel lymph nodes were sectioned and alternate sections were respectively examined by OSNA and by frozen section analysis. After frozen section, the residual tissue from each block was processed with step-level sections (each step at 200 micron) including H&E and IHC slides. RESULTS Sentinel lymph nodes mapping was successful in 29 patients (72.5%). In the remaining 11 patients (27.5%), a systematic pelvic lymphadenectomy was performed. OSNA assay sensitivity and specificity were 87.5% and 100% respectively. Positive and negative predictive values were 100% and 99% respectively, with a diagnostic accuracy of 99%. As far as frozen section examination and subsequent ultra-staging analysis was concerned, we reported sensitivity and specificity of 50% and 94.4% respectively; positive and negative predictive values were 14.3% and 99%, respectively, with an accuracy of 93.6%. In one patient, despite negative OSNA and frozen section analysis of the sentinel node, a macro-metastasis in 1 non-sentinel node was found. CONCLUSIONS The combination of OSNA procedure with the sentinel lymph node mapping could represent an efficient intra-operative tool for the selection of early-stage EC patients to be submitted to systematic lymphadenectomy.
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Affiliation(s)
- Francesco Fanfani
- Department of Medicine and Aging Sciences, University "G. D’Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Giorgia Monterossi
- Division of Gynecologic Oncology, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Viola Ghizzoni
- Division of Gynecologic Oncology, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Esther D. Rossi
- Gynecologic Oncology Pathology Unit, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Giorgia Dinoi
- Division of Gynecologic Oncology, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Frediano Inzani
- Gynecologic Oncology Pathology Unit, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Anna Fagotti
- Division of Gynecologic Oncology, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Salvatore Gueli Alletti
- Division of Gynecologic Oncology, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Francesca Scarpellini
- Gynecologic Oncology Pathology Unit, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Camilla Nero
- Division of Gynecologic Oncology, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Angela Santoro
- Gynecologic Oncology Pathology Unit, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Giovanni Scambia
- Division of Gynecologic Oncology, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Gian F. Zannoni
- Gynecologic Oncology Pathology Unit, Department of Women and Child Health, Catholic University of the Sacred Heart, Rome, Italy
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Konrad L, Gronbach J, Horné F, Mecha EO, Berkes E, Frank M, Gattenlöhner S, Omwandho COA, Oehmke F, Tinneberg HR. Similar Characteristics of Endometrial and Endometriotic Epithelial Cells. Reprod Sci 2018; 26:49-59. [PMID: 29402201 DOI: 10.1177/1933719118756745] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Epithelial-mesenchymal transition (EMT) is characterized by the loss of epithelial and acquisition of mesenchymal cell characteristics. Our aim was to assess the epithelial phenotype in the pathogenesis of endometriosis with epithelial and mesenchymal markers. We used 2 structural (keratin-18, -19 [K18, K19]), 1 membrane-associated (mucin-1 [MUC1]), and 2 mesenchymal proteins (vimentin; zinc finger E-box-binding homeobox 1, [ZEB1]) to compare epithelial and mesenchymal characteristics in eutopic endometrium with the 3 endometriotic entities, peritoneal, ovarian, and deep infiltrating endometriosis (DIE). Quantitation showed no differences for K18, K19, and MUC1 between endometrium with and without endometriosis. Also, K18 was not different between endometrium and endometriotic lesions. In contrast, K19 and MUC1 were modestly but significantly decreased in the endometriotic lesions compared to endometrium. However, the maintained expression of epithelial markers in all investigated tissues, regardless of the pathological condition, clearly indicates no loss of the epithelial phenotype. This is further supported by the reduced presence of epithelial vimentin in endometriotic lesions which is in contrast to an increase in stromal vimentin in ectopic endometrium, especially in ovarian endometriosis. The ZEB1 increase in endometriotic lesions, especially in DIE, on the other hand suggests a role of partial EMT in the development of endometriotic lesions, possibly connected with the gain of invasive capabilities or stemness. Taken together, although we found some hints for at least a partial EMT, we did not observe a severe loss of the epithelial cell phenotype. Thus, we propose that EMT is not a main factor in the pathogenesis of endometriosis.
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Affiliation(s)
- Lutz Konrad
- 1 Department of Gynecology and Obstetrics, University of Giessen, Giessen, Germany.,Lutz Konrad and Judith Gronbach contributed equally to the study
| | - Judith Gronbach
- 1 Department of Gynecology and Obstetrics, University of Giessen, Giessen, Germany.,Lutz Konrad and Judith Gronbach contributed equally to the study
| | - Fabian Horné
- 1 Department of Gynecology and Obstetrics, University of Giessen, Giessen, Germany
| | - Ezekiel O Mecha
- 2 Department of Biochemistry, University of Nairobi, Nairobi, Kenya
| | - Eniko Berkes
- 1 Department of Gynecology and Obstetrics, University of Giessen, Giessen, Germany
| | - Matthias Frank
- 3 Department of Pathology, University of Giessen, Giessen, Germany
| | | | | | - Frank Oehmke
- 1 Department of Gynecology and Obstetrics, University of Giessen, Giessen, Germany
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Clinicopathologic Association and Prognostic Value of Microcystic, Elongated, and Fragmented (MELF) Pattern in Endometrial Endometrioid Carcinoma. Am J Surg Pathol 2017; 41:896-905. [DOI: 10.1097/pas.0000000000000856] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Diagnostic Value of CYFRA 21-1 in the Cerebrospinal Fluid for Leptomeningeal Metastasis. DISEASE MARKERS 2017; 2017:2467870. [PMID: 28298807 PMCID: PMC5337391 DOI: 10.1155/2017/2467870] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 01/02/2017] [Accepted: 02/01/2017] [Indexed: 11/17/2022]
Abstract
Cerebrospinal fluid (CSF) cytology has low sensitivity for leptomeningeal metastasis (LM); thus, new markers are needed to improve the diagnostic accuracy of LM. We measured carcinoembryonic antigen (CEA) and cytokeratin 19 fragments (CYFRA 21-1) in paired samples of CSF and serum from patients with LM and patients with nonmalignant neurological diseases (NMNDs) as controls. Receiver operating curve analysis was performed to assess their diagnostic accuracy for LM. In patients with NMNDs, CEA and CYFRA 21-1 levels in the CSF were significantly lower than the serum levels. In patients with LM, there was no significant difference between the CSF and serum CEA levels, whereas the CYFRA 21-1 levels were significantly higher in the CSF than the serum. CSF/serum quotients of CYFRA 21-1 were higher than those of CEA in patients with LM and patients with NMNDs. CSF CYFRA 21-1 and CSF/serum quotient of CYFRA 21-1 had high accuracy for differentiating LM from NMNDs that was similar to CSF CEA and CSF/serum quotient of CYFRA 21-1, whereas serum CYFRA 21-1 is of poor diagnostic value. Measurement of CSF CYFRA 21-1 should not be overlooked in patients with suspected LM, even if the serum CYFRA 21-1 level is within normal limits.
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López-Ruiz ME, Diestro MD, Yébenes L, Berjón A, Díaz de la Noval B, Mendiola M, De Santiago J, Hardisson D. One-step nucleic acid amplification (OSNA) for the detection of sentinel lymph node metastasis in endometrial cancer. Gynecol Oncol 2016; 143:54-59. [DOI: 10.1016/j.ygyno.2016.07.106] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 07/14/2016] [Accepted: 07/19/2016] [Indexed: 11/29/2022]
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16
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Nagai T, Niikura H, Okamoto S, Nakabayashi K, Matoda M, Utsunomiya H, Nagase S, Watanabe M, Takeshima N, Yaegashi N. A new diagnostic method for rapid detection of lymph node metastases using a one-step nucleic acid amplification (OSNA) assay in endometrial cancer. Ann Surg Oncol 2014; 22:980-6. [PMID: 25190122 DOI: 10.1245/s10434-014-4038-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND To improve lymph node (LN) metastasis identification for patients with endometrial cancer (EC), this study assessed the usefulness of molecular biologic techniques using a one-step nucleic acid amplification (OSNA) assay. METHODS Using quantitative reverse transcription polymerase chain reaction (qRT-PCR), an optimal mRNA marker was selected, and its expression was compared between histopathologically positive and negative LNs using an OSNA assay. The authors determined copy number cutoff values and evaluated the diagnostic performance of this OSNA assay using sentinel lymph nodes (SLNs). They also investigated whether an OSNA assay could detect LN metastases with sensitivity and specificity equivalent to the 2-mm-interval histopathology method. RESULTS For analysis of EC samples, cytokeratin 19 (CK19) was selected as a useful mRNA marker for the OSNA assay. When the cutoff value was set at 250 copies (using 215 LNs from 70 patients), an OSNA assay using CK19 mRNA had a sensitivity of 93.3%, a specificity of 99.5%, and a concordance rate of 99.1%. For performance evaluations using SLNs (120 histopathologically negative LNs and 17 histopathologically positive LNs from 35 patients), a OSNA assay using CK19 mRNA had a sensitivity of 82.4%, a specificity of 99.2%, a positive predictive value of 93.3%, and a concordance rate of 97.1%. Thus, an OSNA assay using CK19 mRNA provided results equivalent to those with the 2-mm-interval histopathology method. CONCLUSIONS The study data demonstrated that an OSNA assay using CK19 mRNA was applicable for detecting LN metastases in EC. Combined analysis using an OSNA assay and SLNs may improve individualized treatments according to LN metastatic status.
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Affiliation(s)
- Tomoyuki Nagai
- Department of Obstetrics and Gynecology, Tohoku University School of Medicine, Sendai, Japan
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17
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Li XL, Dong X, Xue Y, Li CF, Gou WL, Chen Q. Increased expression levels of E-cadherin, cytokeratin 18 and 19 observed in preeclampsia were not correlated with disease severity. Placenta 2014; 35:625-31. [PMID: 24857367 DOI: 10.1016/j.placenta.2014.04.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 04/10/2014] [Accepted: 04/21/2014] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Preeclampsia is a pregnancy-specific disorder and placental factor(s) contribute to the pathogenesis of preeclampsia. Turnover of villous trophoblast is affected by impaired placental perfusion in preeclampsia. Expression and localisation of cadherins and cytokeratins are involved in the pathogenesis of preeclampsia. However, studies describing the associations between cadherins and cytokeratins in preeclampsia are limited. The aim of this study was to investigate the expression of E-cadherin, N-cadherin, cytokeratin 18 and cytokeratin 19 in placentae from women with preeclampsia in order to determine whether their expression differs with disease severity. METHODS 29 preeclamptic placentae and 25 normotensive placentae were included in this study. The expression of E-cadherin, cytokeratin 18, cytokeratin 19 andN-cadherin was quantified by immunohistochemistry and western blotting. RESULTS E-cadherin, cytokeratin 18 and cytokeratin 19 were expressed predominantly in the syncytiotrophoblast of the placenta and the expression of E-cadherin, cytokeratin 18 and cytokeratin 19 was significantly increased in preeclampsia compared to normotensive pregnancies. However, there was no significant difference in expression between severe preeclampsia and mild preeclampsia. In addition, there was no difference in the expression of N-cadherin between preeclampsic and normotensive pregnancies. DISCUSSION Our data demonstrated increased expression of E-cadherin, cytokeratin 18 and cytokeratin 19 in the syncytiotrophoblast of preeclamptic placentae, but this increase was not correlated with disease severity. CONCLUSION Our data suggests that E-cadherin and cytokeratins are involved in the pathogenesis of preeclampsia.
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Affiliation(s)
- X L Li
- Department of Obstetrics & Gynaecology, First Affiliated Hospital of Xi'an Jiaotong University, China.
| | - X Dong
- Department of Obstetrics & Gynaecology, First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Y Xue
- Department of Obstetrics & Gynaecology, First Affiliated Hospital of Xi'an Jiaotong University, China
| | - C F Li
- Department of Obstetrics & Gynaecology, First Affiliated Hospital of Xi'an Jiaotong University, China
| | - W L Gou
- Department of Obstetrics & Gynaecology, First Affiliated Hospital of Xi'an Jiaotong University, China.
| | - Q Chen
- Department of Obstetrics & Gynaecology, The University of Auckland, New Zealand; The Hospital of Obstetrics & Gynaecology, Nanjing Medical University, China.
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Han G, Lim D, Leitao MM, Abu-Rustum NR, Soslow RA. Histological features associated with occult lymph node metastasis in FIGO clinical stage I, grade I endometrioid carcinoma. Histopathology 2013; 64:389-98. [PMID: 24215212 DOI: 10.1111/his.12254] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 08/09/2013] [Indexed: 11/26/2022]
Abstract
AIMS Lymph node involvement affects prognosis/treatment in endometrial carcinoma patients. We assessed various histological features associated with nodal metastasis in patients with grade I, stage I endometrial endometrioid carcinoma (EEC). METHODS AND RESULTS Eighteen stage I EECs with occult positive lymph nodes and 36 controls were assessed for depth of myoinvasion; microcystic, elongated and fragmented (MELF) pattern of myometrial invasion; lymphovascular invasion (LVI); and epithelial metaplasia. Nodal metastases were subclassified as isolated tumour cells (ITCs; ≤0.2 mm), micrometastasis (>0.2 mm and <2 mm), or macrometastasis (≥2 mm). Node-positive cases had significantly higher rates of LVI (P < 0.001) and MELF invasion (P = 0.003) on univariate analysis. Only LVI was associated significantly with nodal metastasis on multivariate analysis (P = 0.002). Tumours with MELF invasion demonstrated reduced E-cadherin expression. Macrometastases were identified in seven cases (39%) with or without micrometastasis/ITCs. Eight (44%) contained only ITCs. Eleven (61%) had histiocyte-like nodal metastases. Biopsy material from four of six (67%) and five of 17 (29%) cases with and without nodal metastasis showed detached eosinophilic tumour cell buds. Of the former, three were associated with histiocyte-like nodal metastases - a feature absent in biopsies without tumour budding. CONCLUSIONS Lymph nodes from grade I EEC exhibiting cellular budding or LVI should be examined for occult metastases, especially in the form of histiocyte-like cells.
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Affiliation(s)
- Guangming Han
- Department of Pathology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
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19
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Epithelial-to-mesenchymal transition in endometrioid adenocarcinoma of the endometrium. Hum Pathol 2013; 44:1956-7. [DOI: 10.1016/j.humpath.2013.04.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 04/26/2013] [Indexed: 11/20/2022]
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20
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Stewart CJR, McCluggage WG. Epithelial-mesenchymal transition in carcinomas of the female genital tract. Histopathology 2013; 62:31-43. [PMID: 23240668 DOI: 10.1111/his.12057] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Invasion is a defining feature of malignancy, but the mechanisms of invasion in many common cancers, including gynaecological malignancies, remain unclear. However, it has been proposed that malignant cells may usurp a normal embryological process, epithelial-mesenchymal transition (EMT), as a means of acquiring migratory capacity. The synergistic role of the tumour microenvironment in EMT induction has also been explored and helps to explain the spatially restricted distribution of EMT at the deep tumour margin (invasive front). Furthermore, tumour cells undergoing EMT may acquire cancer stem cell characteristics, and this may be relevant to the entire metastatic process and to tumour recurrence and treatment failure. Nevertheless, doubts persist regarding the role of EMT in malignant progression in vivo, partly because few studies have correlated molecular and histological alterations in clinical pathology specimens. In the current review we summarize the evidence for EMT in the common gynaecological epithelial malignancies, and discuss the morphological and immunohistochemical changes occurring at the invasive tumour front that may represent EMT-like processes. The possibility that carcinosarcomas represent a variant type of EMT with 'fixed' mesenchymal differentiation is also considered. Diagnostic histopathologists are ideally placed to critically evaluate the role of EMT in gynaecological and other types of malignancy.
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Affiliation(s)
- Colin J R Stewart
- Departments of Histopathology, King Edward Memorial Hospital, Perth, Australia.
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Abstract
Endometrial endometrioid adenocarcinoma (EEC) is the most common malignancy of the female genital tract, partly attributable to chronic estrogen exposure secondary to increased obesity rates. Tumor stage, which in most cases is based on depth of invasion (DOI), is of critical importance in determining if additional treatment is needed. However, the array of invasive morphologies within the spectrum of ECC can make the determination of DOI difficult. Several morphologic patterns of invasion have been described, including diffusely infiltrating irregular glands, "broad front" (or pushing border), adenoma malignum, adenomyosis-like, and microcystic, elongated, and fragmented glands. EEC may often contain a mixture of invasive patterns, which can further complicate evaluation of these common tumors. Recognition of these patterns may lead to more accurate staging, but perhaps more importantly, some patterns may be associated with adverse prognostic features. The purpose of this review is to highlight the various invasive patterns of EEC and note their unique pitfalls and prognostic implications in an effort to improve staging accuracy and treatment and follow-up for the thousands of women affected by this disease each year.
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Li X, Wang Z, Liu J, Tang C, Duan C, Li C. Proteomic analysis of differentially expressed proteins in normal human thyroid cells transfected with PPFP. Endocr Relat Cancer 2012; 19:681-94. [PMID: 22903648 DOI: 10.1530/erc-12-0156] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The fusion gene encoding the thyroid-specific transcription factor PAX8 and peroxisome proliferator-activated receptor γ (PPARγ (PPARG)) (designated as the PPFP gene) is oncogenic and implicated in the development of follicular thyroid carcinoma (FTC). The effects of PPFP transfection on the biological characteristics of Nthy-ori 3-1 cells were studied by MTT assay, colony formation, soft-agar colony formation, and scratch wound-healing assays as well as by flow cytometry. Furthermore, the differentially expressed proteins were analyzed on 2-DE maps and identified by MALDI-TOF-MS. Validation of five identified proteins (prohibitin, galectin-1, cytokeratin 8 (CK8), CK19, and HSP27) was determined by western blot analysis. PPFP not only significantly increased the viability, proliferation, and mobility of the Nthy-ori 3-1 cells but also markedly inhibited cellular apoptosis. Twenty-eight differentially expressed proteins were identified, among which 19 proteins were upregulated and nine proteins were downregulated in Nthy-ori 3-1(PPFP) (Nthy-ori 3-1 cells transfected with PPFP). The western blot results, which were consistent with the proteome analysis results, showed that prohibitin was downregulated, whereas galectin-1, CK8, CK19, and HSP27 were upregulated in Nthy-ori 3-1(PPFP). Our results suggest that PPFP plays an important role in malignant thyroid transformation. Proteomic analysis of the differentially expressed proteins in PPFP-transfected cells provides important information for further study of the carcinogenic mechanism of PPFP in FTCs.
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Affiliation(s)
- Xinying Li
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, People's Republic of China
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