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An Y, Wang H, Jie J, Tang Y, Zhang W, Ji S, Guo X. Identification of distinct molecular subtypes of uterine carcinosarcoma. Oncotarget 2017; 8:15878-15886. [PMID: 28178664 PMCID: PMC5362530 DOI: 10.18632/oncotarget.15032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 01/06/2017] [Indexed: 12/14/2022] Open
Abstract
Uterine carcinosarcoma (UCS) is a rare but lethal neoplasm with high metastasis and recurrence rate, and to date, no molecular classification of UCS has been defined to achieve targeted therapies. In this study, we identified two distinct molecular subtypes of UCS with distinct gene expression patterns and clinicopathologic characteristics. Subtype I UCS recapitulates low-grade UCS, in contrast subtype II UCS represents high-grade UCS with higher tumor invasion rate and tumor weight. Interestingly, subtype I UCS is characterized by cell adhesion and apoptosis pathways, whereas genes over-expressed in subtype II UCS are more involved in myogenesis/muscle development. We also proposed certain potential subtype specific therapeutic targets, such as SYK (spleen tyrosine kinase) for subtype I and cell-cycle proteins for subtype II. Our findings provide a better recognition of UCS molecular subtypes and subtype specific oncogenesis mechanisms, and can help develop more specific targeted treatment options for these tumors.
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Affiliation(s)
- Yang An
- Department of Biochemistry and Molecular Biology, Medical School, Henan University, Kaifeng 475004, China.,Cell Signal Transduction Laboratory, Henan University, Kaifeng 475004, China
| | - Haojie Wang
- Department of Biochemistry and Molecular Biology, Medical School, Henan University, Kaifeng 475004, China.,Cell Signal Transduction Laboratory, Henan University, Kaifeng 475004, China
| | - Jingyao Jie
- Department of Biochemistry and Molecular Biology, Medical School, Henan University, Kaifeng 475004, China.,Cell Signal Transduction Laboratory, Henan University, Kaifeng 475004, China
| | - Yitai Tang
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Weijuan Zhang
- Department of Biochemistry and Molecular Biology, Medical School, Henan University, Kaifeng 475004, China.,Cell Signal Transduction Laboratory, Henan University, Kaifeng 475004, China
| | - Shaoping Ji
- Department of Biochemistry and Molecular Biology, Medical School, Henan University, Kaifeng 475004, China.,Cell Signal Transduction Laboratory, Henan University, Kaifeng 475004, China.,Department of Oncology, The First Affiliated Hospital of Henan University, Kaifeng, 475001, China
| | - Xiangqian Guo
- Department of Biochemistry and Molecular Biology, Medical School, Henan University, Kaifeng 475004, China.,Cell Signal Transduction Laboratory, Henan University, Kaifeng 475004, China.,Department of Preventive Medicine, Medical School, Henan University, Kaifeng 475004, China.,Department of Burn and Plastic Surgery, The Affiliated Nanshi Hospital of Henan University, Nanyang, 473003, China
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Le Gallo M, Rudd ML, Urick ME, Hansen NF, Merino MJ, Mutch DG, Goodfellow PJ, Mullikin JC, Bell DW. The FOXA2 transcription factor is frequently somatically mutated in uterine carcinosarcomas and carcinomas. Cancer 2017; 124:65-73. [PMID: 28940304 DOI: 10.1002/cncr.30971] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 08/03/2017] [Accepted: 08/04/2017] [Indexed: 01/11/2023]
Abstract
BACKGROUND Uterine carcinosarcomas (UCSs) are a rare but clinically aggressive form of cancer. They are biphasic tumors consisting of both epithelial and sarcomatous components. The majority of uterine carcinosarcomas are clonal, with the carcinomatous cells undergoing metaplasia to give rise to the sarcomatous component. The objective of the current study was to identify novel somatically mutated genes in UCSs. METHODS We whole exome sequenced paired tumor and nontumor DNAs from 14 UCSs and orthogonally validated 464 somatic variants using Sanger sequencing. Fifteen genes that were somatically mutated in at least 2 tumor exomes were Sanger sequenced in another 39 primary UCSs. RESULTS Overall, among 53 UCSs in the current study, the most frequently mutated of these 15 genes were tumor protein p53 (TP53) (75.5%), phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) (34.0%), protein phosphatase 2, regulatory subunit A, alpha (PPP2R1A) (18.9%), F-box and WD repeat domain containing 7 (FBXW7) (18.9%), chromodomain helicase DNA binding protein 4 (CHD4) (17.0%), and forkhead box A2 (FOXA2) (15.1%). FOXA2 has not previously been implicated in UCSs and was predominated by frameshift and nonsense mutations. One UCS with a FOXA2 frameshift mutation expressed truncated FOXA2 protein by immunoblotting. Sequencing of FOXA2 in 160 primary endometrial carcinomas revealed somatic mutations in 5.7% of serous, 22.7% of clear cell, 9% of endometrioid, and 11.1% of mixed endometrial carcinomas, the majority of which were frameshift mutations. CONCLUSIONS Collectively, the findings of the current study provide compelling genetic evidence that FOXA2 is a pathogenic driver gene in the etiology of primary uterine cancers, including UCSs. Cancer 2018;124:65-73. © 2017 American Cancer Society.
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Affiliation(s)
- Matthieu Le Gallo
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland
| | - Meghan L Rudd
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland
| | - Mary Ellen Urick
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland
| | - Nancy F Hansen
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland
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- National Institutes of Health Intramural Sequencing Center, National Institutes of Health, Rockville, Maryland
| | - Maria J Merino
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - David G Mutch
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, Missouri
| | - Paul J Goodfellow
- Department of Obstetrics and Gynecology, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - James C Mullikin
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland
| | - Daphne W Bell
- Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland
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Inoue A, Yamaguchi K, Kurata Y, Murakami R, Abiko K, Hamanishi J, Kondoh E, Baba T, Kido A, Konishi I, Matsumura N. Unenhanced region on magnetic resonance imaging represents tumor progression in uterine carcinosarcoma. J Gynecol Oncol 2017; 28:e62. [PMID: 28657223 PMCID: PMC5540721 DOI: 10.3802/jgo.2017.28.e62] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/29/2017] [Accepted: 05/17/2017] [Indexed: 11/30/2022] Open
Abstract
Objective Carcinosarcoma of the uterine corpus has a poor prognosis. Although pathological necrosis is a prognostic factor of endometrial cancer, the clinicopathological influences of an unenhanced region observed on magnetic resonance imaging (MRI) are inconclusive. The aim of our study was to determine the clinicobiological impact of the presence of an unenhanced region on MRI, which can represent necrosis, in uterine carcinosarcoma. Methods The clinicopathological factors of 29 patients diagnosed with uterine carcinosarcoma were assessed retrospectively. The percentage of the tumor that was unenhanced on MRI was determined. The clinicopathological factors related to the unenhanced regions were evaluated. The prognostic significance was assessed using the Kaplan-Meier method and Cox regression model. Results Although the presence of pathological necrosis was not a poor prognostic factor (p=0.704), unenhanced regions on MRI correlated with poor prognosis when the unenhanced regions in the tumor accounted for more than 10% of the total tumor (p=0.019). The percentage of unenhanced regions was positively correlated with stage (p=0.028; r=0.4691) and related to tumor size (p=0.086; r=0.3749). The Cox regression analysis indicated that the presence of lymph node (LN) metastasis and more than 10% of the tumor being unenhanced on MRI were prognostic factors of overall survival in the univariate analyses (p=0.018 and p=0.047, respectively). Conclusion The unenhanced region on MRI, which represents pathological necrosis, reflects tumor progression, and semi-quantification of the region is useful to predict the prognosis in patients with uterine carcinosarcoma.
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Affiliation(s)
- Ayami Inoue
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan
| | - Ken Yamaguchi
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan.
| | - Yasuhisa Kurata
- Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University, Kyoto, Japan
| | - Ryusuke Murakami
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan
| | - Kaoru Abiko
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan
| | - Junzo Hamanishi
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan
| | - Eiji Kondoh
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan
| | - Tsukasa Baba
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan
| | - Aki Kido
- Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University, Kyoto, Japan
| | - Ikuo Konishi
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan.,National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Noriomi Matsumura
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan
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Impact of adjuvant therapy on recurrence patterns in stage I uterine carcinosarcoma. Gynecol Oncol 2017; 145:78-87. [PMID: 28215838 DOI: 10.1016/j.ygyno.2017.02.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/25/2017] [Accepted: 02/01/2017] [Indexed: 11/23/2022]
Abstract
BACKGROUND To examine recurrence patterns in women with stage I uterine carcinosarcoma (UCS) stratified by adjuvant therapy pattern. METHODS We examined 443 cases of stage I UCS derived from a retrospective cohort of 1192 UCS cases from 26 institutions. Adjuvant therapy patterns after primary hysterectomy-based surgery were correlated to recurrence patterns. RESULTS The most common adjuvant therapy was chemotherapy alone (41.5%) followed by chemotherapy/radiotherapy (15.8%) and radiotherapy alone (8.4%). Distant-recurrence was the most common recurrence pattern (5-year cumulative rate, 28.1%) followed by local-recurrence (13.3%). On multivariate analysis, chemotherapy but not radiotherapy remained an independent prognostic factor for decreased risk of local-recurrence (5-year cumulative rates 8.7% versus 19.8%, adjusted-hazard ratio [HR] 0.46, 95% confidence interval [CI] 0.25-0.83, P=0.01) and distant-recurrence (21.2% versus 38.0%, adjusted-HR 0.41, 95%CI 0.27-0.62, P<0.001). The chemotherapy/radiotherapy group had a lower 5-year cumulative local-recurrence rate compared to the chemotherapy alone group but it did not reach statistical significance (5.1% versus 10.1%, adjusted-HR 0.46, 95%CI 0.13-1.58, P=0.22). Radiotherapy significantly decreased local-recurrence when tumors had high-grade carcinoma, sarcoma component dominance, and deep myometrial tumor invasion (all, P<0.05); and combining radiotherapy with chemotherapy was significantly associated with decreased local-recurrence compared to chemotherapy alone in the presence of multiple risk factors (5-year cumulative rates, 2.5% versus 21.8%, HR 0.12, 95%CI 0.02-0.90; P=0.013) but not in none/single factor (P=0.36). CONCLUSION Adjuvant chemotherapy appears to be effective to control both local- and distant-recurrences in stage I UCS; adding radiotherapy to chemotherapy may be effective to control local-recurrence when the tumor exhibits multiple risk factors.
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Matsuo K, Ross MS, Bush SH, Yunokawa M, Blake EA, Takano T, Ueda Y, Baba T, Satoh S, Shida M, Ikeda Y, Adachi S, Yokoyama T, Takekuma M, Takeuchi S, Nishimura M, Iwasaki K, Yanai S, Klobocista MM, Johnson MS, Machida H, Hasegawa K, Miyake TM, Nagano T, Pejovic T, Shahzad MM, Im DD, Omatsu K, Ueland FR, Kelley JL, Roman LD. Tumor characteristics and survival outcomes of women with tamoxifen-related uterine carcinosarcoma. Gynecol Oncol 2016; 144:329-335. [PMID: 27931750 DOI: 10.1016/j.ygyno.2016.11.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 11/22/2016] [Accepted: 11/23/2016] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To examine tumor characteristics and survival outcome of women with uterine carcinosarcoma who had a history of tamoxifen use. METHODS This is a multicenter retrospective study examining stage I-IV uterine carcinosarcoma cases based on history of tamoxifen use. Patient demographics, tumor characteristics, treatment pattern, and survival outcomes were compared between tamoxifen users and non-users. RESULTS Sixty-six cases of tamoxifen-related uterine carcinosarcoma were compared to 1009 cases with no history of tamoxifen use. Tamoxifen users were more likely to be older (mean age, 69 versus 64, P<0.001) and had a past history of malignancy (100% versus 12.7%, P<0.001). Tamoxifen-related uterine carcinosarcoma was significantly associated with a higher proportion of stage IA disease (48.4% versus 29.9%) and a lower risk of stage IVB disease (7.8% versus 16.0%) compared to tamoxifen-unrelated carcinosarcoma (P=0.034). Deep myometrial tumor invasion was less common in uterine carcinosarcoma related to tamoxifen use (28.3% versus 48.8%, P=0.002). On univariate analysis, tamoxifen use was not associated with progression-free survival (5-year rates 44.5% versus 46.8%, P=0.48) and disease-specific survival (64.0% versus 59.1%, P=0.39). After adjusting for age, past history of malignancy, stage, residual disease status at surgery, and postoperative treatment patterns, tamoxifen use was not associated with progression-free survival (adjusted-hazard ratio 0.86, 95% confidence interval 0.50 to 1.50, P=0.60) and disease-specific survival (adjusted-hazard ratio 0.68, 95% confidence interval 0.36 to 1.29, P=0.24). CONCLUSION Our study suggests that tamoxifen-related uterine carcinosarcoma may have favorable tumor characteristics but have comparable stage-specific survival outcomes compared to tamoxifen-unrelated uterine carcinosarcoma.
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Affiliation(s)
- Koji Matsuo
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Southern California, CA, USA.
| | - Malcolm S Ross
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, MaGee-Womens Hospital, University of Pittsburgh, PA, USA
| | - Stephen H Bush
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Moffitt Cancer Center, University of South Florida, FL, USA
| | - Mayu Yunokawa
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Erin A Blake
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Colorado, CO, USA
| | - Tadao Takano
- Department of Obstetrics and Gynecology, Tohoku University, Miyagi, Japan
| | - Yutaka Ueda
- Department of Obstetrics and Gynecology, Osaka University, Osaka, Japan
| | - Tsukasa Baba
- Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan
| | - Shinya Satoh
- Department of Obstetrics and Gynecology, Tottori University, Tottori, Japan
| | - Masako Shida
- Department of Obstetrics and Gynecology, Tokai University, Kanagawa, Japan
| | - Yuji Ikeda
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - Sosuke Adachi
- Department of Obstetrics and Gynecology, Niigata University, Niigata, Japan
| | - Takuhei Yokoyama
- Department of Obstetrics and Gynecology, Osaka Rosai Hospital, Osaka, Japan
| | - Munetaka Takekuma
- Department of Obstetrics and Gynecology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Satoshi Takeuchi
- Department of Obstetrics and Gynecology, Iwate Medical University, Morioka, Japan
| | - Masato Nishimura
- Department of Obstetrics and Gynecology, Tokushima University, Tokushima, Japan
| | - Keita Iwasaki
- Department of Obstetrics and Gynecology, Aichi Medical University, Aichi, Japan
| | - Shiori Yanai
- Department of Obstetrics and Gynecology, Kurashiki Medical Center, Okayama, Japan
| | - Merieme M Klobocista
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Albert Einstein College of Medicine, Montefiore Medical Center, NY, USA
| | - Marian S Johnson
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Kentucky, KY, USA
| | - Hiroko Machida
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Southern California, CA, USA
| | - Kosei Hasegawa
- Department of Obstetrics and Gynecology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Takahito M Miyake
- Department of Obstetrics and Gynecology, Kawasaki Medical School, Okayama, Japan
| | - Tadayoshi Nagano
- Department of Obstetrics and Gynecology, Kitano Hospital, Osaka, Japan
| | - Tanja Pejovic
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Oregon Health & Science University, OR, USA
| | - Mian Mk Shahzad
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Moffitt Cancer Center, University of South Florida, FL, USA
| | - Dwight D Im
- The Gynecologic Oncology Center, Mercy Medical Center, Baltimore, MD, USA
| | - Kohei Omatsu
- Department of Gynecology, Cancer Institute Hospital, Tokyo, Japan
| | - Frederick R Ueland
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Albert Einstein College of Medicine, Montefiore Medical Center, NY, USA
| | - Joseph L Kelley
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, MaGee-Womens Hospital, University of Pittsburgh, PA, USA
| | - Lynda D Roman
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Southern California, CA, USA
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Dangoor A, Seddon B, Gerrand C, Grimer R, Whelan J, Judson I. UK guidelines for the management of soft tissue sarcomas. Clin Sarcoma Res 2016; 6:20. [PMID: 27891213 PMCID: PMC5109663 DOI: 10.1186/s13569-016-0060-4] [Citation(s) in RCA: 287] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 11/01/2016] [Indexed: 01/18/2023] Open
Abstract
Soft tissue sarcomas (STS) are rare tumours arising in mesenchymal tissues, and can occur almost anywhere in the body. Their rarity, and the heterogeneity of subtype and location means that developing evidence-based guidelines is complicated by the limitations of the data available. However, this makes it more important that STS are managed by teams, expert in such cases, to ensure consistent and optimal treatment, as well as recruitment to clinical trials, and the ongoing accumulation of further data and knowledge. The development of appropriate guidance, by an experienced panel referring to the evidence available, is therefore a useful foundation on which to build progress in the field. These guidelines are an update of the previous version published in 2010 (Grimer et al. in Sarcoma 2010:506182, 2010). The original guidelines were drawn up following a consensus meeting of UK sarcoma specialists convened under the auspices of the British Sarcoma Group (BSG) and were intended to provide a framework for the multidisciplinary care of patients with soft tissue sarcomas. This current version has been updated and amended with reference to other European and US guidance. There are specific recommendations for the management of selected subtypes of disease including retroperitoneal and uterine sarcomas, as well as aggressive fibromatosis (desmoid tumours) and other borderline tumours commonly managed by sarcoma services. An important aim in sarcoma management is early diagnosis and prompt referral. In the UK, any patient with a suspected soft tissue sarcoma should be referred to one of the specialist regional soft tissues sarcoma services, to be managed by a specialist sarcoma multidisciplinary team. Once the diagnosis has been confirmed using appropriate imaging, plus a biopsy, the main modality of management is usually surgical excision performed by a specialist surgeon. In tumours at higher risk of recurrence or metastasis pre- or post-operative radiotherapy should be considered. Systemic anti-cancer therapy (SACT) may be utilized in some cases where the histological subtype is considered more sensitive to systemic treatment. Regular follow-up is recommended to assess local control, development of metastatic disease, and any late-effects of treatment. For local recurrence, and more rarely in selected cases of metastatic disease, surgical resection would be considered. Treatment for metastases may include radiotherapy, or systemic therapy guided by the sarcoma subtype. In some cases, symptom control and palliative care support alone will be appropriate.
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Affiliation(s)
- Adam Dangoor
- Bristol Cancer Institute, Bristol Haematology & Oncology Centre, University Hospitals Bristol NHS Trust, Bristol, BS2 8ED UK
| | - Beatrice Seddon
- Department of Oncology, University College London Hospital NHS Trust, London, NW1 2PG UK
| | - Craig Gerrand
- The Newcastle upon Tyne Hospitals NHS Foundation Trust, Freeman Hospital, Newcastle-upon-Tyne, NE7 7DN UK
| | - Robert Grimer
- Royal Orthopaedic Hospital NHS Trust, Birmingham, B31 2AP UK
| | - Jeremy Whelan
- Department of Oncology, University College London Hospital NHS Trust, London, NW1 2PG UK
| | - Ian Judson
- Royal Marsden NHS Foundation Trust, London, SW3 6JJ UK
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Zhang B, Xiao Q, Yang D, Li X, Hu J, Wang Y, Wang W. Spindle cell carcinoma of the esophagus: A multicenter analysis in comparison with typical squamous cell carcinoma. Medicine (Baltimore) 2016; 95:e4768. [PMID: 27631227 PMCID: PMC5402570 DOI: 10.1097/md.0000000000004768] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
This study conducted a retrospective multicenter analysis to investigate the clinicopathological features, optimal therapeutic strategy, and prognosis of spindle cell carcinoma (SpCC) of the esophagus.A total of 71 patients with esophageal SpCC from 3 large cancer centers in China were systematically analyzed. All patients received curative resection, 13 patients received adjuvant radiotherapy and 15 patients received adjuvant combination chemotherapy. Additionally, a total of 1852 patients with typical esophageal SCC (SCC) were selected as controls in this study.SpCC mostly presented as a polypoid appearance (66.2%), and the surrounding mucosa showed high-grade hyperplasia or superficial SCC in 31 cases (43.7%). Two patients even had extensive carcinoma in situ that spread to the resection margins. Patients in the SpCC group were more likely to present with stage I lesions compared with those in the typical SCC group (33.8% vs 8.0%, P < 0.001). Although the percentage of T1/2 lesions was higher in the SpCC group than in the typical SCC group (67.6% vs 29.7%, P < 0.001), both groups had similar rates of locoregional lymphatic metastases (45.1% vs 48.4%, P = 0.578). The median survival time and 5-year overall survival of the SpCC group was 43 months and 44.8%, respectively, higher than 37.5 months and 38.3%, respectively, for the typical SCC group (P = 0.044). In univariate analysis, the macroscopical type and pathological T, N, and TNM stages had a statistically significant impact on the prognosis of SpCC after curative resection. However, only the TNM stage (hazard ratio, 2.708; 95% confidence interval, 1.786-4.105, P < 0.001) was identified as an independent prognostic factor in multivariate analysis. The 5-year OS of SpCC in stages I (79.8%) and II (39.7%) were significantly longer than that of stages III/IV (16.2%) (P < 0.001 and P = 0.012). As those SpCC cases that received chemoradiotherapy were in more advanced stages, their prognosis was still worse than SpCC patients who did not receive chemoradiotherapy even after such treatment (P = 0.042, 0.010, respectively).SpCC shows a highly aggressive tendency of lymphatic spread, although it does not tend to infiltrate deeply into the esophageal wall. Compared with typical SCC that also underwent esophagectomy with extended lymphadenectomy, SpCC may achieve a better survival rate. Further investigation is warranted to examine the effect of postoperative chemoradiotherapy on the prognosis of SpCC.
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Affiliation(s)
| | - Qin Xiao
- The Department of Thoracic Radiotherapy
| | | | - Xu Li
- The 2nd Department of Thoracic Surgery
| | - Jun Hu
- The Department of Pathology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, CSU, Changsha, Hunan Province
| | - Yonggang Wang
- Department of Thoracic Surgery, Cancer Hospital and Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, BeijingThe People's Republic of China
- Correspondence: Yonggang Wang, Department of Thoracic Surgery, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Chaoyang District, Beijing, The People's Republic of China (e-mail: ); Wenxiang Wang, The 2nd Department of thoracic surgery, Hunan Cancer Hospital, Yuelu District, Changsha, China (e-mail: )
| | - Wenxiang Wang
- The 2nd Department of Thoracic Surgery
- Correspondence: Yonggang Wang, Department of Thoracic Surgery, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Chaoyang District, Beijing, The People's Republic of China (e-mail: ); Wenxiang Wang, The 2nd Department of thoracic surgery, Hunan Cancer Hospital, Yuelu District, Changsha, China (e-mail: )
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