1
|
Razack R, Butt JL, Hostein I, Velasco V, Croce S, Olory C, Fu L, Foulkes WD, McCluggage WG. SMARCB1 (INI1) Deficient Tumours of the Uterine Cervix: Report of Two Cases, Including One Associated With an NTRK Fusion. Int J Gynecol Pathol 2024; 43:464-471. [PMID: 38289183 DOI: 10.1097/pgp.0000000000001014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2024]
Abstract
Pathogenic variants (mutations) and other molecular events involving subunits of the SWItch/Sucrose Non-Fermentable chromatin remodelling complex are common in a wide variety of malignancies. Many of these neoplasms are characterized by undifferentiated morphology. They arise at a variety of sites in the female genital tract but have rarely been reported in the uterine cervix. We report 2 primary cervical neoplasms arising in young women (ages 28 and 29 yr) exhibiting loss of nuclear immunoreactivity with SMARCB1 (INI1). In one case, which had a mixture of epithelioid and spindle cells, molecular studies revealed no SMARCB1 pathogenic variant, but showed a SPECCL1::NTRK 3 fusion, in keeping with an NTRK fusion sarcoma. The second case exhibited rhabdoid morphology and molecular testing confirmed a SMARCB1 pathogenic variant (c.425 T>G:p.(Leu142Ter) which, interpreted in conjunction with the morphology and immunohistochemistry, resulted in classification as a proximal-type epithelioid sarcoma. To our knowledge, this is the first reported cervical neoplasm exhibiting a SMARCB1 pathogenic variant and the first NTRK fusion sarcoma showing SMARCB1 protein loss. We discuss the diagnostic challenges and complexities of the molecular findings.
Collapse
|
2
|
Thellman C, Halling KC, Saglam O. NTRK fusion cervical sarcoma with rhabdoid cells and misleading molecular testing. Histopathology 2024. [PMID: 39169717 DOI: 10.1111/his.15306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Affiliation(s)
- Connor Thellman
- Department of Pathology and Laboratory Medicine, Oregon Health and Science University, Portland, OR, USA
| | - Kevin C Halling
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Ozlen Saglam
- Department of Pathology and Laboratory Medicine, Oregon Health and Science University, Portland, OR, USA
| |
Collapse
|
3
|
Moura MS, Costa J, Velasco V, Kommoss F, Oliva E, Le Loarer F, McCluggage WG, Razack R, Treilleux I, Mills A, Longacre T, Devouassoux-Shisheboran M, Hostein I, Azmani R, Blanchard L, Hartog C, Soubeyran I, Khalifa E, Croce S. Pan-TRK immunohistochemistry in gynaecological mesenchymal tumours: diagnostic implications and pitfalls. Histopathology 2024; 84:451-462. [PMID: 37988282 DOI: 10.1111/his.15082] [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: 06/30/2023] [Revised: 09/22/2023] [Accepted: 10/14/2023] [Indexed: 11/23/2023]
Abstract
AIMS NTRK-rearranged sarcomas of the female genital tract mainly occur in the uterus (more commonly cervix than corpus) and are characterized by a "fibrosarcoma-like" morphology and NTRK gene rearrangements. These neoplasms may exhibit histological overlap with other entities and can present diagnostic difficulties without molecular confirmation. Pan-TRK immunohistochemistry was developed to identify tumours harbouring NTRK rearrangements. The aim of this study was to characterize pan-TRK immunohistochemical expression in a large cohort of gynaecological mesenchymal neoplasms and investigate the utility of pan-TRK immunohistochemistry to distinguish NTRK-rearranged sarcoma from its mimics. METHODS AND RESULTS A total of 473 gynaecological mesenchymal tumours (461 without known NTRK fusions and 12 NTRK-rearranged sarcomas) were selected. Pan-TRK immunohistochemistry (EPR17341, Abcam) was performed on whole tissue sections and tissue microarrays. Molecular interrogation of pan-TRK positive tumours was performed by RNA sequencing or fluorescence in situ hybridization (FISH). Of the 12 NTRK-rearranged sarcomas, 11 (92%) exhibited diffuse (≥70%) cytoplasmic pan-TRK staining with moderate/marked intensity, while the other was negative. Eleven (2.4%) additional tumours also exhibited pan-TRK immunohistochemical expression: three low-grade endometrial stromal sarcomas, seven high-grade endometrial stromal sarcomas, and an undifferentiated uterine sarcoma. Molecular confirmation of the absence of NTRK rearrangements was possible in nine of these tumours. Of these nine neoplasms, seven exhibited focal/multifocal (<70%) pan-TRK cytoplasmic staining with weak/moderate intensity. CONCLUSION Even though pan-TRK immunohistochemical expression is not entirely sensitive or specific for NTRK-rearranged sarcomas, these neoplasms tend to exhibit diffuse staining of moderate/strong intensity, unlike its mimics. Pan-TRK should be performed in monomorphic uterine (corpus and cervix) spindle cell neoplasms that are negative for smooth muscle markers and hormone receptors and positive for CD34 and/ or S100. Ultimately, the diagnosis requires molecular confirmation.
Collapse
Affiliation(s)
- Madalena Souto Moura
- Department of Pathology, Portuguese Institute of Oncology-Porto, Porto, Portugal
| | - João Costa
- Department of Pathology, Portuguese Institute of Oncology-Porto, Porto, Portugal
| | - Valérie Velasco
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France
| | - Felix Kommoss
- Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Esther Oliva
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Francois Le Loarer
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France
- Inserm U1312, Université de Bordeaux, Bordeaux, France
- Université de Bordeaux, Talence, France
| | - W Glenn McCluggage
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, UK
| | - Rubina Razack
- Division of Anatomical Pathology, National Health Laboratory Service, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg Academic Hospital, Cape Town, South Africa
| | | | - Anne Mills
- Department of Pathology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Teri Longacre
- Department of Surgical Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Isabelle Hostein
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France
| | - Rihab Azmani
- Bioinformatics, Data and Digital Health Department, Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France
| | - Larry Blanchard
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France
| | - Cécile Hartog
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France
| | - Isabelle Soubeyran
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France
| | - Emmanuel Khalifa
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France
| | - Sabrina Croce
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Centre, Bordeaux, France
- Inserm U1312, Université de Bordeaux, Bordeaux, France
| |
Collapse
|
4
|
Parkash V, Aisagbonhi O, Riddle N, Siddon A, Panse G, Fadare O. Recent Advances in the Classification of Gynecological Tract Tumors: Updates From the 5th Edition of the World Health Organization "Blue Book". Arch Pathol Lab Med 2023; 147:1204-1216. [PMID: 36596270 DOI: 10.5858/arpa.2022-0166-ra] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2022] [Indexed: 01/04/2023]
Abstract
CONTEXT.— The World Health Organization Classification of Tumours: Female Genital Tract Tumors, 5th edition, published in September 2020, comes 6 years after the 4th edition, and reflects the monumental leaps made in knowledge about the biology of gynecological tumors. Major changes include revised criteria for the assignment of the site of origin of ovarian and fallopian tube tumors, a revision in the classification of squamous and glandular lesions of the lower genital tract based on human papillomavirus association, and an entire chapter devoted to genetic tumor syndromes. This article highlights the changes in the 5th edition relative to the 4th edition, with a focus on areas of value to routine clinical practice. OBJECTIVE.— To provide a comprehensive update on the World Health Organization classification of gynecological tumors, highlighting in particular updated diagnostic criteria and terminology. DATA SOURCES.— The 4th and 5th editions of the World Health Organization Classification of Tumours. CONCLUSIONS.— The World Health Organization has made several changes in the 5th edition of the update on female genital tumors. Awareness of the changes is needed for pathologists' translation into contemporary practice.
Collapse
Affiliation(s)
- Vinita Parkash
- From the Department of Pathology (Parkash, Siddon, Panse), Yale University School of Medicine, New Haven, Connecticut
| | - Omonigho Aisagbonhi
- Department of Pathology, University of California at San Diego, La Jolla, California (Aisagbonhi, Fadare)
| | - Nicole Riddle
- The Department of Pathology and Cell Biology, Ruffolo, Hooper, and Associates, University of South Florida College of Medicine, Tampa, Florida (Riddle, Siddon)
| | - Alexa Siddon
- From the Department of Pathology (Parkash, Siddon, Panse), Yale University School of Medicine, New Haven, Connecticut
- Department of Laboratory Medicine (Siddon), Yale University School of Medicine, New Haven, Connecticut
- The Department of Pathology and Cell Biology, Ruffolo, Hooper, and Associates, University of South Florida College of Medicine, Tampa, Florida (Riddle, Siddon)
| | - Gauri Panse
- From the Department of Pathology (Parkash, Siddon, Panse), Yale University School of Medicine, New Haven, Connecticut
- The Department of Dermatology (Panse), Yale University School of Medicine, New Haven, Connecticut
| | - Oluwole Fadare
- Department of Pathology, University of California at San Diego, La Jolla, California (Aisagbonhi, Fadare)
| |
Collapse
|
5
|
Nguyen MA, Colebatch AJ, Van Beek D, Tierney G, Gupta R, Cooper WA. NTRK fusions in solid tumours: what every pathologist needs to know. Pathology 2023:S0031-3025(23)00128-9. [PMID: 37330338 DOI: 10.1016/j.pathol.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/30/2023] [Accepted: 05/03/2023] [Indexed: 06/19/2023]
Abstract
Fusions involving the Neurotrophic tropomyosin receptor kinase (NTRK) gene family (NTRK1, NTRK2 and NTRK3) are targetable oncogenic alterations that are found in a diverse range of tumours. There is an increasing demand to identify tumours which harbour these fusions to enable treatment with selective tyrosine kinase inhibitors such as larotrectinib and entrectinib. NTRK fusions occur in a wide range of tumours including rare tumours such as infantile fibrosarcoma and secretory carcinomas of the salivary gland and breast, as well as at low frequencies in more common tumours including melanoma, colorectal, thyroid and lung carcinomas. Identifying NTRK fusions is a challenging task given the different genetic mechanisms underlying NTRK fusions, their varying frequency across different tumour types, complicated by other factors such as tissue availability, optimal detection methods, accessibility and costs of testing methods. Pathologists play a key role in navigating through these complexities by determining optimal approaches to NTRK testing which has important therapeutic and prognostic implications. This review provides an overview of tumours harbouring NTRK fusions, the importance of identifying these fusions, available testing methods including advantages and limitations, and generalised and tumour-specific approaches to testing.
Collapse
Affiliation(s)
- Minh Anh Nguyen
- Department of Tissue Pathology and Diagnostic Oncology, NSW Health Pathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Andrew J Colebatch
- Department of Tissue Pathology and Diagnostic Oncology, NSW Health Pathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Diana Van Beek
- Department of Tissue Pathology and Diagnostic Oncology, NSW Health Pathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Geraldine Tierney
- Department of Tissue Pathology and Diagnostic Oncology, NSW Health Pathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Ruta Gupta
- Department of Tissue Pathology and Diagnostic Oncology, NSW Health Pathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Wendy A Cooper
- Department of Tissue Pathology and Diagnostic Oncology, NSW Health Pathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia; School of Medicine, Western Sydney University, Sydney, NSW, Australia.
| |
Collapse
|
6
|
Lu L, Wang S, Shen H, Zhang F, Ma F, Shi Y, Ning Y. Case Report: A case of COL1A1–PDGFB fusion uterine sarcoma at cervix and insights into the clinical management of rare uterine sarcoma. Front Oncol 2023; 13:1108586. [PMID: 36994196 PMCID: PMC10042132 DOI: 10.3389/fonc.2023.1108586] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 02/13/2023] [Indexed: 03/15/2023] Open
Abstract
COL1A1–PDGFB gene fusion uterine sarcoma is an especially rare malignant mesenchymal tumor that was previously classified as an undifferentiated uterine sarcoma due to the lack of specific features of differentiation. Till now, only five cases have been reported, and here we presented another case recently diagnosed in a Chinese woman who had vaginal bleeding. She presented with a cervical mass at the anterior lip of the cervix invading the vagina and was treated with laparoscopic total hysterectomy plus bilateral salpingo-oophorectomy (TH+BSO) and partial vaginal wall resection with the final pathology of COL1A1–PDGFB fusion uterine sarcoma. Our aim is to emphasize the importance of differential diagnosis of this rare tumor, as early precise diagnosis may allow patients to benefit from the targeted therapy imatinib. This article also serves as further clinical evidence of this disease, serving to increase clinical awareness of this rare sarcoma to avoid misdiagnosis.
Collapse
Affiliation(s)
- Linghui Lu
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Shunni Wang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Haoran Shen
- Department of Gynecological Oncology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Feiran Zhang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Fenghua Ma
- Department of Radiology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yue Shi
- Department of Gynecological Oncology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yan Ning
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| |
Collapse
|
7
|
Xu B, Suurmeijer AJH, Agaram NP, Antonescu CR. Head and Neck Mesenchymal Tumors with Kinase Fusions: A Report of 15 Cases With Emphasis on Wide Anatomic Distribution and Diverse Histologic Appearance. Am J Surg Pathol 2023; 47:248-258. [PMID: 36638315 PMCID: PMC9846578 DOI: 10.1097/pas.0000000000001982] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Mesenchymal tumors harboring various kinase fusions were recently recognized as emerging entities mainly in the soft tissues. We herein investigate the clinicopathologic and molecular characteristics of head and neck mesenchymal tumors harboring kinase fusions. The study cohort included 15 patients with a median age of 13 years (ranging from congenital to 63 y). The kinase genes involved in descending order were NTRK1 (n=6), NTRK3 (n=5), BRAF (n=2), and 1 each with MET, and RET. The anatomic locations were broad involving all tissue planes, including skin (n=4), intraosseous (n=4), major salivary glands (n=2), sinonasal tract (n=2), soft tissue of face or neck (n=2), and oral cavity (n=1). The histologic spectrum ranged from benign to high grade, in descending order including tumors resembling malignant peripheral nerve sheath tumor (MPNST)-like, fibrosarcoma (infantile or adult-type), lipofibromatosis-like neural tumor (LPFNT), inflammatory myofibroblastic tumor-like, and a novel phenotype resembling myxoma. Perivascular hyalinization/stromal keloid-like collagen bands and staghorn vasculature were common features in MPNST-like and LPFNT-like tumors. Two tumors (1 each with NTRK1 or BRAF rearrangement) were classified as high grade. By immunohistochemistry, S100 and CD34 positivity was noted in 71% and 60%, frequently in MPNST-like and LPFNT-like phenotypes. Pan-TRK was a sensitive marker for NTRK-translocated tumors but was negative in tumor with other kinase fusions. One patient with a high-grade tumor developed distant metastasis. Molecular testing for various kinase fusions should be considered for S100+/CD34+ spindle cell neoplasms with perivascular hyalinization and staghorn vessels, as pan-TRK positivity is seen only in NTRK fusions.
Collapse
Affiliation(s)
- Bin Xu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Albert JH Suurmeijer
- Department of Pathology and Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Narasimhan P. Agaram
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Cristina R. Antonescu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| |
Collapse
|
8
|
Nilforoushan N, Wethington SL, Nonogaki H, Gross J, Vang R, Xing D. NTRK-Fusion Sarcoma of the Uterine Cervix: Report of 2 Cases With Comparative Clinicopathologic Features. Int J Gynecol Pathol 2022; 41:642-648. [PMID: 34723848 PMCID: PMC9170358 DOI: 10.1097/pgp.0000000000000834] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
NTRK1/2/3 rearrangements have been identified as oncogenic drivers in a variety of tumors including those in the uterine cervix, and rarely, the uterine corpus. We report 2 cases of cervical sarcoma with NTRK gene rearrangements. Case 1 was a 54-yr-old woman who presented with postmenopausal bleeding and a 5.4 cm friable mass in the cervix. Microscopic examination of the tumor revealed proliferation of epithelioid and spindle cells arranged in alternating hypercellular and hypocellular areas, with subtle fibrosarcoma-like features. Coagulative tumor cell necrosis and readily recognizable mitoses (up to 40 mitotic figures per 10 high-power fields) were identified. Case 2 was a 52-yr-old woman who presented with abnormal vaginal bleeding and a 1.3 cm cervical mass. The resected cervical tumor showed proliferation of spindled cells with fascicular and storiform growth pattern, infiltrating into the smooth muscle with entrapment of normal endocervical glands. The tumor cells displayed mild cytologic atypia and low mitotic activity (1 mitotic figure per 10 high-power fields). The mixed inflammatory infiltrate was seen throughout the lesion, mimicking morphology of inflammatory myofibroblastic tumor. Immunohistochemical staining for S100 and CD34 demonstrated variable expression in case 1 and uniformly diffuse positivity in case 2. The tumor cells in both cases were focally positive for CD10, Cyclin D1, ER, and PR, and negative for AE1/AE3, desmin, SOX10, HMB-45. RNA fusion analysis identified SPECC1L-NTRK3 gene rearrangements in case 1 and TPM3-NTRK1 in case 2; DNA-based mutational analysis also revealed CDKN2A/B homozygous deletion in case 1. Despite accumulating literature on NTRK fusion mesenchymal tumors in gynecologic pathology, these tumors are still rare and lack well-established morphologic diagnostic criteria. Diagnostic and clinical recognition of these tumors is critical given the potential patient benefit from targeted therapy.
Collapse
|
9
|
Croce S, Perret R, Le Loarer F. Update on Mesenchymal Lesions of the Lower Female Genital Tract. Surg Pathol Clin 2022; 15:341-367. [PMID: 35715165 DOI: 10.1016/j.path.2022.02.009] [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] [Indexed: 06/15/2023]
Abstract
This article provides an update of the recent developments in mesenchymal tumors of lower genital tract. We focus on the characterization of recurrent molecular events in certain genital stromal tumors, for instance angiomyofibroblastomas and superficial myofibroblastomas. Moreover, fusions involving Tyrosine-kinases receptors (NTRK, FRFR1, RET, COL1A1-PDGFB) have been demonstrated in an emerging group of mesenchymal tumors characterized by a fibrosarcoma-like morphology and a predilection for uterine cervix of premenopausal women. We also cover the topic of smooth muscle tumors of the lower genital tract, which can be now classified using the same diagnostic criteria than their uterine counterpart..
Collapse
Affiliation(s)
- Sabrina Croce
- Biopathology Department, Anticancer Center, Institut Bergonié, Bordeaux, France; INSERM U 1218, Action Unit, Bordeaux, France.
| | - Raul Perret
- Biopathology Department, Anticancer Center, Institut Bergonié, Bordeaux, France; INSERM U 1218, Action Unit, Bordeaux, France
| | - François Le Loarer
- Biopathology Department, Anticancer Center, Institut Bergonié, Bordeaux, France; INSERM U 1218, Action Unit, Bordeaux, France; University of Bordeaux, Talence, France
| |
Collapse
|
10
|
Perioperative Suppression of Schwann Cell Dedifferentiation Reduces the Risk of Adenomyosis Resulting from Endometrial–Myometrial Interface Disruption in Mice. Biomedicines 2022; 10:biomedicines10061218. [PMID: 35740240 PMCID: PMC9219744 DOI: 10.3390/biomedicines10061218] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/21/2022] [Accepted: 05/23/2022] [Indexed: 11/16/2022] Open
Abstract
We have recently demonstrated that endometrial–myometrial interface (EMI) disruption (EMID) can cause adenomyosis in mice, providing experimental evidence for the well-documented epidemiological finding that iatrogenic uterine procedures increase the risk of adenomyosis. To further elucidate its underlying mechanisms, we designed this study to test the hypothesis that Schwann cells (SCs) dedifferentiating after EMID facilitate the genesis of adenomyosis, but the suppression of SC dedifferentiation perioperatively reduces the risk. We treated mice perioperatively with either mitogen-activated protein kinase kinase (MEK)/extracellular-signal regulated protein kinase (ERK) or c-Jun N-terminal kinase (JNK) inhibitors or a vehicle 4 h before and 24 h, 48 h and 72 h after the EMID procedure. We found that EMID resulted in progressive SCs dedifferentiation, concomitant with an increased abundance of epithelial cells in the myometrium and a subsequent epithelial–mesenchymal transition (EMT). This EMID-induced change was abrogated significantly with perioperative administration of JNK or MEK/ERK inhibitors. Consistently, perioperative administration of a JNK or a MEK/ERK inhibitor reduced the incidence by nearly 33.5% and 14.3%, respectively, in conjunction with reduced myometrial infiltration of adenomyosis and alleviation of adenomyosis-associated hyperalgesia. Both treatments significantly decelerated the establishment of adenomyosis and progression of EMT, fibroblast-to-myofibroblast trans-differentiation and fibrogenesis in adenomyotic lesions. Thus, we provide the first piece of evidence strongly implicating the involvement of SCs in the pathogenesis of adenomyosis induced by EMID.
Collapse
|
11
|
Dang X, Xiang T, Zhao C, Tang H, Cui P. EML4-NTRK3 Fusion Cervical Sarcoma: A Case Report and Literature Review. Front Med (Lausanne) 2022; 9:832376. [PMID: 35572973 PMCID: PMC9096266 DOI: 10.3389/fmed.2022.832376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/11/2022] [Indexed: 12/19/2022] Open
Abstract
The concept of neurotrophic factor tyrosine kinase receptor (NTRK) fusion tumor has emerged in recent years. Moreover, NTRK fusion is unusual in common tumors but can often be identified in rare tumors. The NTRK fusion cervical or uterine tumors are mainly recognized through case reports due to their extremely low incidence. In this study, we reported a new case of EML4–NTRK3 fusion cervical sarcoma to enhance its recognition. To the best of our knowledge, this is the first case from a Chinese institution. We also conducted a literature review, in which a total of 19 cases of NTRK fusion cervical tumors and 4 cases of uterine tumors were retrieved. We summarized the clinicopathological features, treatment methods, and prognosis of these cases. Based on available information, we observed that surgery and complete excision, if possible, are still the primary modes of therapy. In addition, an increasing number of studies have shown that tropomyosin receptor kinases (TRK) inhibitors can improve the prognosis of cancer patients with NTRK gene fusion, which gives a silver lining for patients with metastatic lesions. We found that age and mitotic rate may be associated with recurrence or metastasis by univariate survival analysis. To draw more convincing conclusions, there is a need to establish an international database of rare cases and aggregate these sporadic cases.
Collapse
Affiliation(s)
- Xiaohe Dang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Xiang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Can Zhao
- Department of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hao Tang
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pengfei Cui
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
12
|
Niu S, Zheng W. Endometrial stromal tumors: Diagnostic updates and challenges. Semin Diagn Pathol 2022; 39:201-212. [DOI: 10.1053/j.semdp.2022.01.004] [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: 01/07/2022] [Accepted: 01/12/2022] [Indexed: 11/11/2022]
|