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Chandrasekaran Y, Amitkumar K, Elamaran A, Sudalaimuthu M, Kumaran S. Myxoid Pleomorphic Liposarcoma of the Spermatic Cord: A Rare Entity at a Rare Site. Cureus 2024; 16:e65554. [PMID: 39192930 PMCID: PMC11347961 DOI: 10.7759/cureus.65554] [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: 07/07/2024] [Accepted: 07/27/2024] [Indexed: 08/29/2024] Open
Abstract
Myxoid pleomorphic liposarcoma (MPLPS) is an extremely rare entity that has been recognized and included in the literature recently. Liposarcomas are adipocytic tumors that are usually located in the extremities and retroperitoneum. Paratesticular liposarcomas are extremely rare malignant tumors originating from the adipose tissue of the paratesticular region. Myxoid pleomorphic liposarcoma (MPLPS) is an exceedingly rare variant of liposarcoma, with very few cases reported in the literature so far. Mediastinum is the most common site for MPLPS followed by the limbs, head, and neck. We report a case of a 50-year-old male patient who presented with a swelling in the right inguinal region, which came to the patient's attention in the past month. After investigations, a right-high orchidectomy was done. Histopathological examination and immunohistochemistry were performed and a diagnosis of myxoid pleomorphic liposarcoma (MPLPS) involving the spermatic cord was made. So here we report this case of myxoid pleomorphic liposarcoma involving the spermatic cord for the first time in the literature.
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Affiliation(s)
- Yazhini Chandrasekaran
- Department of Pathology, Sri Ramaswamy Memorial (SRM) Institute of Science and Technology, Chengalpattu, IND
| | - Kalaivani Amitkumar
- Department of Pathology, Sri Ramaswamy Memorial (SRM) Institute of Science and Technology, Chengalpattu, IND
| | - Ashwini Elamaran
- Department of Pathology, Sri Ramaswamy Memorial (SRM) Institute of Science and Technology, Chengalpattu, IND
| | - Muthu Sudalaimuthu
- Department of Pathology, Sri Ramaswamy Memorial (SRM) Institute of Science and Technology, Chengalpattu, IND
| | - Subhalakshmi Kumaran
- Department of Radiology, Sri Ramaswamy Memorial (SRM) Institute of Science and Technology, Chengalpattu, IND
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2
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Ciongariu AM, Țăpoi DA, Dumitru AV, Bejenariu A, Marin A, Costache M. Pleomorphic Liposarcoma Unraveled: Investigating Histopathological and Immunohistochemical Markers for Tailored Diagnosis and Therapeutic Innovations. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:950. [PMID: 38929567 PMCID: PMC11205576 DOI: 10.3390/medicina60060950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 06/01/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024]
Abstract
Liposarcomas are some of the most challenging soft tissue tumors and are subclassified into multiple subtypes with special histologic and molecular features. The peculiarities of each histopathological subtype influence the clinical behavior, management, and treatment of these neoplasms. For instance, well-differentiated liposarcomas are common soft tissue malignancies and usually display a favorable outcome. On the other hand, pleomorphic liposarcoma is the rarest, yet the most aggressive subtype of liposarcoma. This histopathological diagnosis may be challenging due to the scarce available data and because pleomorphic liposarcomas can mimic other pleomorphic sarcomas or other neoplasms of dissimilar differentiation. Nevertheless, the correct diagnosis of pleomorphic liposarcoma is of utmost importance as such patients are prone to develop local recurrences and metastases. Treatment usually consists of surgical excision along with radiotherapy and follow-up of the patients. Therefore, this review aims to assess the complex clinical, histological, and immunohistochemical features of liposarcomas in order to establish how these characteristics influence the management and prognosis of the patients, emphasizing the particularities of pleomorphic liposarcoma.
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Affiliation(s)
- Ana-Maria Ciongariu
- Department of Pathology, “Carol Davila’’ University of Medicine and Pharmacy, 020021 Bucharest, Romania; (A.-M.C.); (D.-A.Ț.); (M.C.)
- Department of Pathology, University Emergency Hospital, 050098 Bucharest, Romania;
| | - Dana-Antonia Țăpoi
- Department of Pathology, “Carol Davila’’ University of Medicine and Pharmacy, 020021 Bucharest, Romania; (A.-M.C.); (D.-A.Ț.); (M.C.)
- Department of Pathology, University Emergency Hospital, 050098 Bucharest, Romania;
| | - Adrian-Vasile Dumitru
- Department of Pathology, “Carol Davila’’ University of Medicine and Pharmacy, 020021 Bucharest, Romania; (A.-M.C.); (D.-A.Ț.); (M.C.)
- Department of Pathology, University Emergency Hospital, 050098 Bucharest, Romania;
| | - Adrian Bejenariu
- Department of Pathology, University Emergency Hospital, 050098 Bucharest, Romania;
| | - Andrei Marin
- Department of Plastic Surgery, “Carol Davila’’ University of Medicine and Pharmacy, 020021 Bucharest, Romania;
| | - Mariana Costache
- Department of Pathology, “Carol Davila’’ University of Medicine and Pharmacy, 020021 Bucharest, Romania; (A.-M.C.); (D.-A.Ț.); (M.C.)
- Department of Pathology, University Emergency Hospital, 050098 Bucharest, Romania;
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3
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Xie F, Niu Y, Lian L, Wang Y, Zhuang A, Yan G, Ren Y, Chen X, Xiao M, Li X, Xi Z, Zhang G, Qin D, Yang K, Zheng Z, Zhang Q, Xia X, Li P, Gu L, Wu T, Luo C, Lin SH, Li W. Multi-omics joint analysis revealed the metabolic profile of retroperitoneal liposarcoma. Front Med 2024; 18:375-393. [PMID: 38157196 DOI: 10.1007/s11684-023-1020-z] [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: 12/22/2022] [Accepted: 07/04/2023] [Indexed: 01/03/2024]
Abstract
Retroperitoneal liposarcoma (RLPS) is the main subtype of retroperitoneal soft sarcoma (RSTS) and has a poor prognosis and few treatment options, except for surgery. The proteomic and metabolic profiles of RLPS have remained unclear. The aim of our study was to reveal the metabolic profile of RLPS. Here, we performed proteomic analysis (n = 10), metabolomic analysis (n = 51), and lipidomic analysis (n = 50) of retroperitoneal dedifferentiated liposarcoma (RDDLPS) and retroperitoneal well-differentiated liposarcoma (RWDLPS) tissue and paired adjacent adipose tissue obtained during surgery. Data analysis mainly revealed that glycolysis, purine metabolism, pyrimidine metabolism and phospholipid formation were upregulated in both RDDLPS and RWDLPS tissue compared with the adjacent adipose tissue, whereas the tricarboxylic acid (TCA) cycle, lipid absorption and synthesis, fatty acid degradation and biosynthesis, as well as glycine, serine, and threonine metabolism were downregulated. Of particular importance, the glycolytic inhibitor 2-deoxy-D-glucose and pentose phosphate pathway (PPP) inhibitor RRX-001 significantly promoted the antitumor effects of the MDM2 inhibitor RG7112 and CDK4 inhibitor abemaciclib. Our study not only describes the metabolic profiles of RDDLPS and RWDLPS, but also offers potential therapeutic targets and strategies for RLPS.
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Affiliation(s)
- Fu'an Xie
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China
- Xiamen University Research Center of Retroperitoneal Tumor Committee of Oncology Society of Chinese Medical Association, Xiamen University, Xiamen, 361102, China
| | - Yujia Niu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Lanlan Lian
- Department of Laboratory Medicine, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Yue Wang
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Aobo Zhuang
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Guangting Yan
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Yantao Ren
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Xiaobing Chen
- Department of Retroperitoneal Tumor Surgery, Peking University International Hospital, Beijing, 102206, China
| | - Mengmeng Xiao
- Department of Retroperitoneal Tumor Surgery, Peking University International Hospital, Beijing, 102206, China
| | - Xi Li
- School of Public Health, Harvard University, Boston, MA, 02115, USA
| | - Zhe Xi
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Gen Zhang
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Dongmei Qin
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Kunrong Yang
- Laboratory of Biochemistry and Molecular Biology Research, Department of Clinical Laboratory, Fujian Medical University Cancer Hospital, Fuzhou, 350014, China
| | - Zhigang Zheng
- Surgery Department, Affiliated Fuzhou First Hospital of Fujian Medical University, Fuzhou, 350009, China
| | - Quan Zhang
- National Institute for Data Science in Health and Medicine, Xiamen University, Xiamen, 361102, China
| | - Xiaogang Xia
- Department of Hepatobiliary Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Peng Li
- Department of Hepatobiliary Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Lingwei Gu
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Ting Wu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China.
- Xiamen University Research Center of Retroperitoneal Tumor Committee of Oncology Society of Chinese Medical Association, Xiamen University, Xiamen, 361102, China.
| | - Chenghua Luo
- Department of Retroperitoneal Tumor Surgery, Peking University International Hospital, Beijing, 102206, China.
| | - Shu-Hai Lin
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China.
| | - Wengang Li
- Cancer Research Center, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China.
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, 361102, China.
- Xiamen University Research Center of Retroperitoneal Tumor Committee of Oncology Society of Chinese Medical Association, Xiamen University, Xiamen, 361102, China.
- Department of Hepatobiliary Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China.
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Weiss MC, Eulo V, Van Tine BA. To Quiesce or Senesce, That Is the Question for Dedifferentiated Liposarcoma. Clin Cancer Res 2024; 30:649-651. [PMID: 38064245 DOI: 10.1158/1078-0432.ccr-23-2787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/14/2023] [Accepted: 11/28/2023] [Indexed: 02/17/2024]
Abstract
Dedifferentiated liposarcoma (DDLPS) has an appealing therapeutic target due to its CDK4 amplification on chromosome 12q. The understanding of geroconversion from quiescent cells to senescent cells defines a patient's response to CDK4 inhibitors. This new observation will inform not only the ongoing phase III clinical trial of abemaciclib, but all future clinical trials in DDLPS. See related article by Gleason et al., p. 703.
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Affiliation(s)
- Mia C Weiss
- Washington University in St. Louis, School of Medicine, Department of Medicine, Division of Medical Oncology, St. Louis, Missouri
- Siteman Cancer Center, St. Louis, Missouri
| | - Vanessa Eulo
- Division of Hematology/Oncology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Brian A Van Tine
- Washington University in St. Louis, School of Medicine, Department of Medicine, Division of Medical Oncology, St. Louis, Missouri
- Siteman Cancer Center, St. Louis, Missouri
- Department of Pediatric Hematology/Oncology, St. Louis Children's Hospital, St Louis, Missouri
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5
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Somaiah N, Tap W. MDM2-p53 in liposarcoma: The need for targeted therapies with novel mechanisms of action. Cancer Treat Rev 2024; 122:102668. [PMID: 38104352 DOI: 10.1016/j.ctrv.2023.102668] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/19/2023]
Abstract
Well-differentiated and dedifferentiated liposarcomas (WDLPS and DDLPS) are rare tumors that arise from lipocytes in soft tissue. There is a high unmet need in patients with these liposarcomas given poor outcomes, particularly for DDLPS. WDLPS and DDLPS share important genetic and histological characteristics - most notably, the amplification of the 2 genes MDM2 and CDK4. Both genes are considered oncogenes because of their ability to shut down tumor suppressor pathways. There are multiple therapeutic approaches that aim to target MDM2 and CDK4 activity for the purpose of restoring intrinsic tumor suppressor cellular response and terminating oncogenesis. However, current understanding of the molecular mechanisms involved in WDLPS and DDLPS pathology is limited. In recent years, significant efforts have been made to refine and implement targeted therapy for this patient population. The use of patient-derived cell and tumor xenograft models has been an important tool for recapitulating WDLPS and DDLPS biology. These models also offer valuable insights for drug development and drug combination studies. Here we offer a review of the current understanding of WDLPS and DDLPS biology and its therapeutic implications.
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Affiliation(s)
- Neeta Somaiah
- Department of Sarcoma Medical Oncology, Division of Cancer Medicine, MD Anderson Cancer Center, Houston, TX, United States.
| | - William Tap
- Sarcoma Medical Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY, United States.
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Kassi ABF, Yenon KS, Kassi FMH, Adjeme AJ, Diarra KM, Bombet-Kouame C, Kouassi M. Giant dedifferentiated liposarcoma of the gastrocolic ligament: A case report. World J Gastrointest Surg 2023; 15:2376-2381. [PMID: 37969706 PMCID: PMC10642459 DOI: 10.4240/wjgs.v15.i10.2376] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/17/2023] [Accepted: 08/23/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Dedifferentiated liposarcoma (DDLS) has a worse prognosis and occurs most commonly in the retroperitoneal region and rarely in the intraperitoneal region. Histological diagnosis was revolutionized by the combined contributions of histo-immuno-chemistry and molecular biology. Aside from surgery, there is no consensus on the optimal treatment for this chemoresistant cancer. CASE SUMMARY A thirty-year-old black female presented with a large painful abdominal mass occupying nearly the entire abdomen and progressive weight loss was admitted for surgery. Abdominal computed tomography showed a large heterogeneous mass of the mesentery that was sized 18 cm × 16 cm in size and had heterogeneous contrast enhancement. During laparotomy, en bloc excision of the large and multilobulated gastrocolic ligament mass was performed. The initial postoperative histopathological diagnosis was undifferentiated sarcoma. Finally, the results of immunohistochemistry and molecular biology allowed us to confirm the diagnosis of DDLS. The tumour followed an aggressive evolution with diffuse metastasis, causing the death of the patient less than 5 mo after the operation. CONCLUSION Dedifferentiated liposarcomas are rare tumours that typically originate in the retroperitoneum but may arise in unexpected locations.
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Affiliation(s)
- Assamoi Brou Fulgence Kassi
- Surgery and Surgical Specialities, Medical Sciences Training and Research Unit, Abidjan Felix Houphouet-Boigny University, Abidjan 01 BP V 34, Cote d'Ivoire
- Surgery and Surgical Specialities, Digestive Surgery Unit, University Hospital of Cocody, Abidjan 01 BP V13, Cote d'Ivoire
| | - Kacou Sebastien Yenon
- Surgery and Surgical Specialities, Medical Sciences Training and Research Unit, Abidjan Felix Houphouet-Boigny University, Abidjan 01 BP V 34, Cote d'Ivoire
- Surgery and Surgical Specialities, Digestive Surgery Unit, University Hospital of Cocody, Abidjan 01 BP V13, Cote d'Ivoire
| | - Fian Marc Herve Kassi
- Surgery and Surgical Specialities, Digestive Surgery Unit, University Hospital of Cocody, Abidjan 01 BP V13, Cote d'Ivoire
| | - Adja Jacob Adjeme
- Surgery and Surgical Specialities, Digestive Surgery Unit, University Hospital of Cocody, Abidjan 01 BP V13, Cote d'Ivoire
| | - Khader Morel Diarra
- Surgery and Surgical Specialities, Digestive Surgery Unit, University Hospital of Cocody, Abidjan 01 BP V13, Cote d'Ivoire
| | - Cynthia Bombet-Kouame
- Surgery and Surgical Specialities, Digestive Surgery Unit, University Hospital of Cocody, Abidjan 01 BP V13, Cote d'Ivoire
| | - Marcellin Kouassi
- Surgery and Surgical Specialities, Digestive Surgery Unit, University Hospital of Cocody, Abidjan 01 BP V13, Cote d'Ivoire
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Zhao Z, Chen X, Xu J, Shi Y, Mak TK, Huo M, Zhang C. Whole exome sequencing of well-differentiated liposarcoma and dedifferentiated liposarcoma in older woman: a case report. Front Med (Lausanne) 2023; 10:1237246. [PMID: 37649981 PMCID: PMC10464618 DOI: 10.3389/fmed.2023.1237246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 07/31/2023] [Indexed: 09/01/2023] Open
Abstract
Background Common kinds of soft tissue sarcomas (STS) include well-differentiated liposarcoma (WDLPS) and dedifferentiated liposarcoma (DDLPS). In this case, we present a comprehensive clinical profile of a patient who underwent multiple recurrences during the progression from WDLPS to DDLPS. Case presentation A 62-year-old Asian female underwent retroperitoneal resection of a large tumor 11 years ago, the initial pathology revealed a fibrolipoma-like lesion. Over the next six years, the patient underwent three resections for recurrence of abdominal tumors. Postoperative histology shows mature adipose tissue with scattered "adipoblast"-like cells with moderate-to-severe heterogeneous spindle cells, pleomorphic cells, or tumor giant cells. Immunohistochemistry (IHC) demonstrated positive staining for MDM2 and CDK4, confirming that the abdominal tumor was WDLPS and gradually progressing to DDLPS. Post-operative targeted sequencing and IHC confirmed the POC1B::ROS1 fusion gene in DDLPS. Whole-exome sequencing (WES) revealed that WDLPS and DDLPS shared similar somatic mutations and copy number variations (CNVs), whereas DDLPS had more mutated genes and a higher and more concentrated amplification of the chromosome 12q region. Furthermore, somatic mutations in DDLPS were significantly reduced after treatment with CDK4 inhibitors, while CNVs remained elevated. Conclusion Due to the high likelihood of recurrence of liposarcoma, various effective treatments should be taken into consideration even if surgery is the primary treatment for recurrent liposarcoma. To effectively control the course of the disease following surgery, combination targeted therapy may be a viable alternative to chemotherapy and radiotherapy in the treatment of liposarcoma.
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Affiliation(s)
- Zidan Zhao
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Xiaoyan Chen
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Jie Xu
- Department of Pathology, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Yuntao Shi
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Tsz Kin Mak
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Mingyu Huo
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Changhua Zhang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, China
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La Ferlita A, Sp N, Goryunova M, Nigita G, Pollock RE, Croce CM, Beane JD. Small Non-Coding RNAs in Soft-Tissue Sarcomas: State of the Art and Future Directions. Mol Cancer Res 2023; 21:511-524. [PMID: 37052491 PMCID: PMC10238653 DOI: 10.1158/1541-7786.mcr-22-1008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/06/2023] [Accepted: 02/22/2023] [Indexed: 04/14/2023]
Abstract
Soft-tissue sarcomas (STS) are a rare and heterogeneous group of tumors that arise from connective tissue and can occur anywhere in the body. Among the plethora of over 50 different STS types, liposarcoma (LPS) is one of the most common. The subtypes of STS are characterized by distinct differences in tumor biology that drive responses to pharmacologic therapy and disparate oncologic outcomes. Small non-coding RNAs (sncRNA) are a heterogeneous class of regulatory RNAs involved in the regulation of gene expression by targeting mRNAs. Among the several types of sncRNAs, miRNAs and tRNA-derived ncRNAs are the most studied in the context of tumor biology, and we are learning more about the role of these molecules as important regulators of STS tumorigenesis and differentiation. However, challenges remain in translating these findings and no biomarkers or therapeutic approaches targeting sncRNAs have been developed for clinical use. In this review, we summarize the current landscape of sncRNAs in the context of STS with an emphasis on LPS, including the role of sncRNAs in the tumorigenesis and differentiation of these rare malignancies and their potential as novel biomarkers and therapeutic targets. Finally, we provide an appraisal of published studies and outline future directions to study sncRNAs in STS, including tRNA-derived ncRNAs.
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Affiliation(s)
- Alessandro La Ferlita
- Department of Cancer Biology and Genetics, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Nipin Sp
- Department of Surgery, Division of Surgical Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Marina Goryunova
- Department of Surgery, Division of Surgical Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Giovanni Nigita
- Department of Cancer Biology and Genetics, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Raphael E. Pollock
- Department of Surgery, Division of Surgical Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Carlo M. Croce
- Department of Cancer Biology and Genetics, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Joal D. Beane
- Department of Surgery, Division of Surgical Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
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Ciongariu AM, Dumitru AV, Cîrstoiu C, Crețu B, Sajin M, Țăpoi DA, Ciobănoiu AD, Bejenariu A, Marin A, Costache M. The Conundrum of Dedifferentiation in a Liposarcoma at a Peculiar Location: A Case Report and Literature Review. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59050967. [PMID: 37241198 DOI: 10.3390/medicina59050967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/30/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
Dedifferentiated liposarcoma of the deep soft tissue of the lower extremities is an infrequent finding. Myxoid liposarcoma is considered the most common soft tissue neoplasia arising in this anatomic region. Divergent differentiation usually occurs within well-differentiated liposarcoma and is exceedingly rare in a myxoid liposarcoma. We report a 32-year-old man who developed a dedifferentiated liposarcoma of the thigh on the background of a pre-existing myxoid liposarcoma. The gross examination of the surgical specimen showed a 11/7/2 cm tumour mass with solid tan-grey areas and focal myxoid degeneration. The microscopic examination revealed a malignant lipogenic proliferation, containing round cells with hyperchromatic nuclei and atypical lipoblasts, confined to the basophilic stroma with a myxoid aspect. Abrupt transition towards a hypercellular, non-lipogenic area consisting of highly pleomorphic spindle cells with atypical mitotic figures was also noted. Immunohistochemical staining was performed. Tumour cells in the lipogenic area were intensely positive for S100 and p16, and CD34 staining highlighted an arborizing capillary network. The dedifferentiated tumour areas showed positive MDM2 and CDK4 staining within neoplastic cells, with the Ki 67 proliferation marker expressed in approximately 10% of the cells. Wild-type TP53 protein expression pattern was documented. Thus, the diagnosis of a dedifferentiated liposarcoma was established. This paper aims to provide further knowledge about liposarcomas with divergent differentiation at peculiar locations, emphasizing the importance of histopathologic examination and immunohistochemical analysis for establishing the diagnosis and assessing the therapeutic response and prognosis of this condition.
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Affiliation(s)
- Ana-Maria Ciongariu
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
- Morphology Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Adrian-Vasile Dumitru
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
- Morphology Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Cătălin Cîrstoiu
- Morphology Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Orthopedic Surgery and Traumatology Department, University Emergency Hospital, 050098 Bucharest, Romania
| | - Bogdan Crețu
- Morphology Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Orthopedic Surgery and Traumatology Department, University Emergency Hospital, 050098 Bucharest, Romania
| | - Maria Sajin
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
- Morphology Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Dana-Antonia Țăpoi
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
- Morphology Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Aminia-Diana Ciobănoiu
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
- Morphology Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Adrian Bejenariu
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
| | - Andrei Marin
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
- Morphology Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Plastic Surgery Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Mariana Costache
- Pathology Department, University Emergency Hospital, 050098 Bucharest, Romania
- Morphology Department, Faculty of Medicine "Carol Davila", University of Medicine and Pharmacy, 020021 Bucharest, Romania
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10
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Sudjai N, Siriwanarangsun P, Lektrakul N, Saiviroonporn P, Maungsomboon S, Phimolsarnti R, Asavamongkolkul A, Chandhanayingyong C. Tumor-to-bone distance and radiomic features on MRI distinguish intramuscular lipomas from well-differentiated liposarcomas. J Orthop Surg Res 2023; 18:255. [PMID: 36978182 PMCID: PMC10044811 DOI: 10.1186/s13018-023-03718-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Background To develop a machine learning model based on tumor-to-bone distance and radiomic features derived from preoperative MRI images to distinguish intramuscular (IM) lipomas and atypical lipomatous tumors/well-differentiated liposarcomas (ALTs/WDLSs) and compared with radiologists. Methods The study included patients with IM lipomas and ALTs/WDLSs diagnosed between 2010 and 2022, and with MRI scans (sequence/field strength: T1-weighted (T1W) imaging at 1.5 or 3.0 Tesla MRI). Manual segmentation of tumors based on the three-dimensional T1W images was performed by two observers to appraise the intra- and interobserver variability. After radiomic features and tumor-to-bone distance were extracted, it was used to train a machine learning model to distinguish IM lipomas and ALTs/WDLSs. Both feature selection and classification steps were performed using Least Absolute Shrinkage and Selection Operator logistic regression. The performance of the classification model was assessed using a tenfold cross-validation strategy and subsequently evaluated using the receiver operating characteristic curve (ROC) analysis. The classification agreement of two experienced musculoskeletal (MSK) radiologists was assessed using the kappa statistics. The diagnosis accuracy of each radiologist was evaluated using the final pathological results as the gold standard. Additionally, we compared the performance of the model and two radiologists in terms of the area under the receiver operator characteristic curves (AUCs) using the Delong’s test. Results There were 68 tumors (38 IM lipomas and 30 ALTs/WDLSs). The AUC of the machine learning model was 0.88 [95% CI 0.72–1] (sensitivity, 91.6%; specificity, 85.7%; and accuracy, 89.0%). For Radiologist 1, the AUC was 0.94 [95% CI 0.87–1] (sensitivity, 97.4%; specificity, 90.9%; and accuracy, 95.0%), and as to Radiologist 2, the AUC was 0.91 [95% CI 0.83–0.99] (sensitivity, 100%; specificity, 81.8%; and accuracy, 93.3%). The classification agreement of the radiologists was 0.89 of kappa value (95% CI 0.76–1). Although the AUC of the model was lower than of two experienced MSK radiologists, there was no statistically significant difference between the model and two radiologists (all P > 0.05). Conclusions The novel machine learning model based on tumor-to-bone distance and radiomic features is a noninvasive procedure that has the potential for distinguishing IM lipomas from ALTs/WDLSs. The predictive features that suggested malignancy were size, shape, depth, texture, histogram, and tumor-to-bone distance. Supplementary Information The online version contains supplementary material available at 10.1186/s13018-023-03718-4.
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Affiliation(s)
- Narumol Sudjai
- grid.10223.320000 0004 1937 0490Department of Orthopaedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700 Thailand
| | - Palanan Siriwanarangsun
- grid.10223.320000 0004 1937 0490Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700 Thailand
| | - Nittaya Lektrakul
- grid.10223.320000 0004 1937 0490Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700 Thailand
| | - Pairash Saiviroonporn
- grid.10223.320000 0004 1937 0490Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700 Thailand
| | - Sorranart Maungsomboon
- grid.10223.320000 0004 1937 0490Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700 Thailand
| | - Rapin Phimolsarnti
- grid.10223.320000 0004 1937 0490Department of Orthopaedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700 Thailand
| | - Apichat Asavamongkolkul
- grid.10223.320000 0004 1937 0490Department of Orthopaedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700 Thailand
| | - Chandhanarat Chandhanayingyong
- grid.10223.320000 0004 1937 0490Department of Orthopaedic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700 Thailand
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Akaihata M, Takahashi I, Kakuda Y, Kawata T, Mukaigawa T, Onitsuka T, Murayama S, Ishida Y. Head pleomorphic sarcoma showing murine double minute 2 amplification without a well-differentiated liposarcoma component in a pediatric patient. Cancer Rep (Hoboken) 2023; 6:e1774. [PMID: 36572546 PMCID: PMC9939988 DOI: 10.1002/cnr2.1774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/28/2022] [Accepted: 12/14/2022] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Murine double minute 2 (MDM2) is an oncogene that inhibits p53, leading to decreased apoptosis. Sarcomas showing MDM2 amplification are rare among pediatric patients. CASE A 14-year-old boy presented with pleomorphic sarcoma of the head showing MDM2 amplification without a well-differentiated liposarcoma component. Although chemotherapy was initially performed to reduce the tumor size before surgery, the tumor did not shrink. The patient underwent complete surgical resection. Microscopic examination revealed a positive surgical margin; thus, postoperative proton-beam radiotherapy was performed. 3 years after the therapy, no sign of recurrence was observed. CONCLUSION Macroscopic surgical resection combined with adjuvant postoperative radiotherapy was effective against MDM2-amplified pleomorphic sarcoma refractory to neoadjuvant chemotherapy in a pediatric patient.
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Affiliation(s)
| | | | - Yuko Kakuda
- Division of PathologyShizuoka Cancer CenterShizuokaJapan
| | - Takuya Kawata
- Division of PathologyShizuoka Cancer CenterShizuokaJapan
| | - Takashi Mukaigawa
- Division of Head and Neck SurgeryShizuoka Cancer CenterShizuokaJapan
| | - Testuro Onitsuka
- Division of Head and Neck SurgeryShizuoka Cancer CenterShizuokaJapan
- Division of Head and Neck SurgeryMishima Central HospitalShizuokaJapan
| | | | - Yuji Ishida
- Division of PediatricsShizuoka Cancer CenterShizuokaJapan
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12
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Resag A, Toffanin G, Benešová I, Müller L, Potkrajcic V, Ozaniak A, Lischke R, Bartunkova J, Rosato A, Jöhrens K, Eckert F, Strizova Z, Schmitz M. The Immune Contexture of Liposarcoma and Its Clinical Implications. Cancers (Basel) 2022; 14:cancers14194578. [PMID: 36230502 PMCID: PMC9559230 DOI: 10.3390/cancers14194578] [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: 08/26/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
Liposarcomas (LPS) are the most frequent malignancies in the soft tissue sarcoma family and consist of five distinctive histological subtypes, termed well-differentiated LPS, dedifferentiated LPS (DDLPS), myxoid LPS (MLPS), pleomorphic LPS, and myxoid pleomorphic LPS. They display variations in genetic alterations, clinical behavior, and prognostic course. While accumulating evidence implicates a crucial role of the tumor immune contexture in shaping the response to anticancer treatments, the immunological landscape of LPS is highly variable across different subtypes. Thus, DDLPS is characterized by a higher abundance of infiltrating T cells, yet the opposite was reported for MLPS. Interestingly, a recent study indicated that the frequency of pre-existing T cells in soft tissue sarcomas has a predictive value for immune checkpoint inhibitor (CPI) therapy. Additionally, B cells and tertiary lymphoid structures were identified as potential biomarkers for the clinical outcome of LPS patients and response to CPI therapy. Furthermore, it was demonstrated that macrophages, predominantly of M2 polarization, are frequently associated with poor prognosis. An improved understanding of the complex LPS immune contexture enables the design and refinement of novel immunotherapeutic approaches. Here, we summarize recent studies focusing on the clinicopathological, genetic, and immunological determinants of LPS.
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Affiliation(s)
- Antonia Resag
- Institute of Immunology, Faculty of Medicine Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany
| | - Giulia Toffanin
- Department of Surgery Oncology and Gastroenterology, University of Padova, Via Gattamelata 64, 35128 Padova, Italy
| | - Iva Benešová
- Institute of Immunology, Faculty of Medicine Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany
- Department of Immunology, Second Faculty of Medicine, Charles University, University Hospital Motol, V Úvalu 84, 150 06 Prague, Czech Republic
| | - Luise Müller
- Institute of Immunology, Faculty of Medicine Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany
| | - Vlatko Potkrajcic
- Department of Radiation Oncology, Eberhard-Karls-University Tuebingen, Hoppe-Seyler-Straße 3, 72076 Tuebingen, Germany
| | - Andrej Ozaniak
- Third Department of Surgery, First Faculty of Medicine, Charles University, University Hospital Motol, V Úvalu 84, 150 06 Prague, Czech Republic
| | - Robert Lischke
- Third Department of Surgery, First Faculty of Medicine, Charles University, University Hospital Motol, V Úvalu 84, 150 06 Prague, Czech Republic
| | - Jirina Bartunkova
- Department of Immunology, Second Faculty of Medicine, Charles University, University Hospital Motol, V Úvalu 84, 150 06 Prague, Czech Republic
| | - Antonio Rosato
- Department of Surgery Oncology and Gastroenterology, University of Padova, Via Gattamelata 64, 35128 Padova, Italy
- Veneto Institute of Oncology IOV-IRCCS, Via Gattamelata 64, 35128 Padova, Italy
| | - Korinna Jöhrens
- Institute of Pathology, University Hospital Carl Gustav Carus, Fetscherstraße 74, 01307 Dresden, Germany
- National Center for Tumor Diseases (NCT), University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Franziska Eckert
- Department of Radiation Oncology, Eberhard-Karls-University Tuebingen, Hoppe-Seyler-Straße 3, 72076 Tuebingen, Germany
- Department of Radiation Oncology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Zuzana Strizova
- Department of Immunology, Second Faculty of Medicine, Charles University, University Hospital Motol, V Úvalu 84, 150 06 Prague, Czech Republic
- Correspondence: (Z.S.); (M.S.); Tel.: +420-604712471 (Z.S.); +49-351-458-6501 (M.S.)
| | - Marc Schmitz
- Institute of Immunology, Faculty of Medicine Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany
- National Center for Tumor Diseases (NCT), University Hospital Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
- Correspondence: (Z.S.); (M.S.); Tel.: +420-604712471 (Z.S.); +49-351-458-6501 (M.S.)
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Evaluation of Efficacy of Adjuvant Radiotherapy in Well-Differentiated Liposarcoma Patients with Positive Surgical Margins: A Population-based Study. JOURNAL OF ONCOLOGY 2022; 2022:5735679. [PMID: 36117851 PMCID: PMC9477581 DOI: 10.1155/2022/5735679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/11/2022] [Accepted: 08/25/2022] [Indexed: 11/29/2022]
Abstract
Background The use of adjuvant radiotherapy (RT) for well-differentiated liposarcoma (WD-LPS) patients with positive surgical margins is unclear. We aim to compare the overall survival (OS) and cancer-specific survival (CSS) of well-differentiated liposarcoma patients with positive surgical margins in an RT group and non-RT group. Methods WD-LPS patients with positive margins from 2000 to 2018 were extracted from the Surveillance, Epidemiology, and End Results (SEER) database and divided into two groups: RT group and non-RT group. Kaplan–Meier survival analysis with the log-rank test was performed to evaluate the difference of overall survival (OS) and cancer-specific survival (CSS) between groups. Univariate and multivariate Cox proportional hazard analyses were performed to identify important prognostic factors of OS and CSS. Analyses were adjusted using propensity-score matching. Results We identified 2549 patients: 377 (14.79%) with RT and 2172 (85.21%) without RT. The median age was 61 years, and the median follow-up time was 68 months. The log-rank test revealed that there was no significant difference of CSS between RT and non-RT groups (P = 0.81). The 5-year and 10-year CSS were comparable (P = 0.418 and P = 0.987). Additionally, the use of RT was neither an independent prognostic factor for OS nor CSS. Age, sex, tumor site, the use of chemotherapy were independent prognostic factors for OS after propensity score matching, while race and the tumor site were independent prognostic factors for CSS. Conclusion Adjuvant RT had no significant improvement on OS and CSS of WD-LPS patients with positive surgical margins.
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14
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Updates in Pathology for Retroperitoneal Soft Tissue Sarcoma. Curr Oncol 2022; 29:6400-6418. [PMID: 36135073 PMCID: PMC9497884 DOI: 10.3390/curroncol29090504] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
Retroperitoneal tumors are extremely rare. More than 70% of primary retroperitoneal soft tissue tumors are malignant. The most common sarcomas in the retroperitoneum include liposarcomas and leiomyosarcoma, however other sarcomas, along with benign mesenchymal tumors, can occur. Sarcomas are a heterogenous group of tumors with overlapping microscopic features, posing a diagnostic challenge for the pathologist. Correct tumor classification has become important for prognostication and the evolving targeted therapies for sarcoma subtypes. In this review, the pathology of retroperitoneal soft tissue sarcomas is discussed, which is important to the surgical oncologist. In addition, less common sarcomas and benign mesenchymal tumors of the retroperitoneum, which may mimic sarcoma clinically and pathologically, are also discussed.
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Luca Alatzides G, Luisa Steinberg H, Schildhaus HU, Hamacher R, Kaths M, Grueneisen J, Treckmann J, Bauer S, Umutlu L, Schaarschmidt B. Is preoperative CT-guided biopsy a valuable tool in the diagnostic workup of patients with visceral and retroperitoneal sarcoma? Eur J Radiol 2022; 155:110470. [PMID: 35985092 DOI: 10.1016/j.ejrad.2022.110470] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/12/2022] [Accepted: 08/07/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE We aimed to analyze the diagnostic accuracy of preoperative CT-guided biopsy to identify patients that might profit from neoadjuvant chemotherapy in a specialized high-volume sarcoma center. MATERIAL AND METHODS We retrospectively reviewed all patients with suspected soft tissue tumors of the abdomen cavity including the retroperitoneum, who received CT-guided biopsy followed by surgical tumor resection. Sensitivity, specificity, PPV and NPV were calculated in all patients with abdominal sarcomas at our hospital. A subgroup analysis was performed for patients with liposarcoma. RESULTS A total of 82 patients (35 female, 47 male, age: 62.0 ± 14.7) received preoperative CT-guided biopsy followed by surgical resection. Overall accordance of CT-guided biopsy to identify final histology was 77 %. CT-guided biopsy revealed the diagnosis of liposarcoma in 23 patients whereas final analysis of the surgical specimen identified liposarcoma in 29 patients. Here, sensitivity, specificity, PPV and NPV was 79.3 %, 100.0 %, 100.0 % and 89.8 % respectively. Subgroup analysis revealed a better accuracy for correctly identifying patients with well-differentiated liposarcoma than patients with dedifferentiated liposarcoma (75.0 % vs 62.5 %). In patients with other sarcoma, sensitivity, specificity, PPV, NPV and diagnostic accuracy was 87.5 %, 95.5 %, 82.4 % and 96.9 %, respectively. CONCLUSION CT-guided biopsy in a specialized high-volume sarcoma center is an accurate and effective method to assess patients with abdominal sarcoma and especially abdominal liposarcoma. Therefore, it is an indispensable tool in the pretherapeutic workup process. Nevertheless, our study underlines the previously reported difficulties in dedifferentiated liposarcoma diagnostics, whereby these patient cohort would profit the most from a neoadjuvant therapy regime.
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Affiliation(s)
- Georgios Luca Alatzides
- Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany.
| | - Hannah Luisa Steinberg
- Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany
| | - Hans-Ulrich Schildhaus
- Institute of Pathology, University Hospital Essen, Hufelandstr. 55, 45147, Essen, Germany
| | - Rainer Hamacher
- West German Cancer Center, Department of Medical Oncology, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany
| | - Moritz Kaths
- Department of General, Visceral and Transplantation Surgery, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany
| | - Johannes Grueneisen
- Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany
| | - Jürgen Treckmann
- Department of General, Visceral and Transplantation Surgery, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany
| | - Sebastian Bauer
- West German Cancer Center, Department of Medical Oncology, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany
| | - Lale Umutlu
- Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany
| | - Benedikt Schaarschmidt
- Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany
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Establishment and Characterization of NCC-DDLPS4-C1: A Novel Patient-Derived Cell Line of Dedifferentiated Liposarcoma. J Pers Med 2021; 11:jpm11111075. [PMID: 34834427 PMCID: PMC8618493 DOI: 10.3390/jpm11111075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 12/23/2022] Open
Abstract
Dedifferentiated liposarcoma (DDLPS) is a highly malignant sarcoma characterized by the co-amplification of MDM2 and CDK4. Although systemic chemotherapy is recommended for unresectable or metastatic cases, DDLPS is insensitive to conventional chemotherapy, leading to an unfavorable prognosis. Therefore, novel treatment methods are urgently required. Patient-derived cell lines are essential in preclinical studies. Recently, large-scale screening studies using a number of cell lines have been actively conducted for the development of new therapeutic drugs. However, the DDLPS cell line cannot be obtained from public cell banks owing to its rarity, hindering screening studies. As such, novel DDLPS cell lines need to be established. Accordingly, this study aimed to establish a novel DDLPS cell line from surgical specimens. The cell line was named NCC-DDLPS4-C1. NCC-DDLPS4-C1 cells retained copy number alterations corresponding to the original tumors. Further, the cells demonstrated constant growth, spheroid formation, and equivalent invasiveness to MG63 osteosarcoma cells. We also conducted drug screening and integrated the results with those of the previously reported DDLPS cell lines. Consequently, we identified the histone deacetylase inhibitor romidepsin as a novel candidate drug. In conclusion, the NCC-DDLPS4-C1 cell line is a useful tool for the basic study of DDLPS.
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