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Varinelli L, Di Bella M, Guaglio M, Battistessa D, Pisati F, Cavalleri T, Milione M, Martínez-Quintanilla J, Caswell PT, Baratti D, Kusamura S, Deraco M, Gariboldi M. A combinatorial culture strategy to develop pseudomyxoma peritonei organoid models. J Surg Oncol 2024. [PMID: 39360464 DOI: 10.1002/jso.27850] [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: 07/15/2024] [Accepted: 08/15/2024] [Indexed: 10/04/2024]
Abstract
BACKGROUND AND OBJECTIVES Few preclinical models of pseudomyxoma peritonei (PMP) have been developed, probably due to the tumor's low incidence and its peculiar characteristics of slow growth. Therefore, there is a need to develop more refined PMP models that better reflect its characteristics. The aim of the study is to develop a culture strategy to generate organoid models derived from PMP patient samples. METHODS We followed a strategy based on combinatorial culture conditions that include the different factors essential for PMP growth and that mimic the microenvironment present in the patients. RESULTS We cultured PMP samples in the presence of the various factors produced by the niche environment of PMP. We obtained 12 PMP organoid models, each of which grows under specific culture conditions. PMP-derived organoids show long-term expansion capacity and reproduce the genetic landscape and histological phenotype of the tumor of origin. CONCLUSION The organoids we developed faithfully reproduce the key features of PMP disease and will allow us to understand the biology of PMP. With them, we will be able to identify key regulatory networks that support PMP progression, providing a platform for multilevel preclinical testing, identify novel diagnostic biomarkers, and generate novel targets for patient treatments.
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Affiliation(s)
- Luca Varinelli
- Molecular Epigenomics Unit, Department of Experimental Oncology, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
| | - Marzia Di Bella
- Molecular Epigenomics Unit, Department of Experimental Oncology, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
| | - Marcello Guaglio
- Peritoneal Surface Malignancies Unit, Department of Surgery, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
| | - Davide Battistessa
- Molecular Epigenomics Unit, Department of Experimental Oncology, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
| | - Federica Pisati
- Cogentech Ltd. Benefit Corporation with a Sole Shareholder, Milan, Italy
| | - Tommaso Cavalleri
- Peritoneal Surface Malignancies Unit, Department of Surgery, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
| | - Massimo Milione
- 1st Pathology Division, Department of Phatology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Jordi Martínez-Quintanilla
- Translational Program, Stem Cells and Cancer Laboratory, Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Patrick T Caswell
- Wellcome Trust Centre for Cell-Matrix Research, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Dario Baratti
- Peritoneal Surface Malignancies Unit, Department of Surgery, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
| | - Shigeki Kusamura
- Peritoneal Surface Malignancies Unit, Department of Surgery, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
| | - Marcello Deraco
- Peritoneal Surface Malignancies Unit, Department of Surgery, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
| | - Manuela Gariboldi
- Molecular Epigenomics Unit, Department of Experimental Oncology, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
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Patel S, Bhatt A, Mehta S, Ramakrishnan AS. Two-stage cytoreductive surgery for 'extensive' pseudomyxoma peritonei: A legitimate alternative or salvage strategy? EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2024; 50:108593. [PMID: 39121632 DOI: 10.1016/j.ejso.2024.108593] [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: 04/17/2024] [Revised: 08/06/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
BACKGROUND AND AIM Two-stage cytoreductive surgery (CRS) has been proposed as an alternative to one-stage surgery in patients who have 'extensive' pseudomyxoma peritonei (PMP) and/or are unfit for very extensive surgery, to reduce morbidity. We review current evidence on two-stage CRS focusing on patient selection, interval between procedures, extent of surgery, use of HIPEC, perioperative and oncological outcomes. METHODS This is a narrative review. A literature search on PubMed and Embase was performed using keywords- 'Two-stage cytoreductive surgery', 'pseudomyxoma peritonei', 'high-volume PMP', 'huge PMP', 'cytoreductive surgery', 'HIPEC', 'staged surgery' and 'extensive pseudomyxoma peritonei'. RESULTS Five studies reported outcomes in a total of 114 patients. The indications for two-stage CRS were: in two studies, patients undergoing an incomplete cytoreduction due to undue surgical risk were reevaluated for a second surgery during routine surveillance; severe comorbidities in one; extensive disease with PCI>28 in another and in one, only HIPEC was performed as a second procedure due to intraoperative hemodynamic instability (the two-stage procedure was performed in interest of patient's safety). Major morbidity ranged from 0 to 37.5 % (first-stage) and 25%-38.9 % (second-stage). Short term follow-up demonstrated equivalent short-term oncological outcomes compared to historical data. Long term follow-up and quality-of-life data were not available. CONCLUSIONS The published studies showed different interpretations and applications of the two-stage CRS concept. The reported morbidity was similar to that after single-stage CRS for extensive PMP. Though short-term survival outcomes are acceptable, long-term follow-up is needed. Planned two-stage CRS should currently be reserved for highly selected clinical situations.
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Affiliation(s)
- Swapnil Patel
- Dept of Surgical Oncology, MPMMCC & HBCH, Tata Memorial Centre, Varanasi, India
| | - Aditi Bhatt
- Dept of Surgical Oncology, KD Hospital, Ahmedabad, India.
| | - Sanket Mehta
- Dept of Surgical Oncology, Specialty Surgical Oncology, Mumbai, India
| | - A S Ramakrishnan
- Dept. of Surgical Oncology, Cancer Institute, WIA, Chennai, India
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3
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Liu Q, Jiao J, Zhao D, Li C, Shi J, Yu G. Recurrent appendiceal low-grade pseudomyxoma peritonei: presenting with splenic metastasis. ANZ J Surg 2024; 94:1651-1653. [PMID: 38888277 DOI: 10.1111/ans.19130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/20/2024]
Affiliation(s)
- Qi Liu
- School of Clinical Medicine, Shandong Second Medical University, Weifang, China
- Department of Gastrointestinal Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jie Jiao
- Department of Gastrointestinal Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Dong Zhao
- Department of Pathology, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Chengzhen Li
- Department of Gastrointestinal Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jingbo Shi
- Department of Gastrointestinal Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Guanying Yu
- Department of Gastrointestinal Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
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John V, Mercer J, Kim K, Kochhar R. The role of multimodality imaging in the selection and management of patients treated with cytoreductive surgery and HIPEC. Abdom Radiol (NY) 2024:10.1007/s00261-024-04441-2. [PMID: 38976054 DOI: 10.1007/s00261-024-04441-2] [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: 05/13/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 07/09/2024]
Abstract
Cytoreductive surgery (CRS) with or without hyperthermic intraperitoneal chemotherapy (HIPEC) is the mainstay of potentially curative surgical treatment for malignancies that have spread to peritoneal surfaces. This surgical procedure is however associated with high morbidity and appropriate patient selection and planning is therefore essential. Available multimodality imaging techniques include CT with oral and intravenous contrast, MRI including use of dedicated peritoneal protocol and FDG-PET/CT. These used with the correct technique, read by specialist radiologists and discussed under the auspices of a dedicated multidisciplinary team, can help to improve outcomes. We demonstrate that imaging not only provides information about peritoneal disease burden but more importantly want to shift the reader's focus to disease distribution. Our examples highlight how imaging helps avoid futile surgery by identifying patients with disease in unfavourable sites and show the strength and limitations of the various imaging modalities. We share how MR imaging can help identify multifocal and often occult sites including widespread miliary disease. Our examples provide a comprehensive overview demonstrating how imaging can help plan surgery by identifying patients who may need splenic vaccinations, counselling for stoma, egg harvesting and input from surgeons with other specialist expertise greatly increasing likelihood of achieving complete cytoreduction.
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Affiliation(s)
- V John
- Mersey and West Lancashire Teaching Hospitals NHS Trust Lead Employer, Prescot, UK
- The Christie NHS Foundation Trust, Manchester, UK
| | - J Mercer
- The Christie NHS Foundation Trust, Manchester, UK
| | - K Kim
- Mersey and West Lancashire Teaching Hospitals NHS Trust Lead Employer, Prescot, UK
- The Christie NHS Foundation Trust, Manchester, UK
| | - R Kochhar
- The Christie NHS Foundation Trust, Manchester, UK.
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Romero-Ruiz A, Granados-Rodríguez M, Bura FI, Valenzuela-Molina F, Rufián-Andújar B, Martínez-López A, Rodríguez-Ortiz L, Ortega-Salas R, Torres-Martínez M, Moreno-Serrano A, Castaño J, Michán C, Alhama J, Vázquez-Borrego MC, Arjona-Sánchez Á. Breaking the Mucin Barrier: A New Affinity Chromatography-Mass Spectrometry Approach to Unveil Potential Cell Markers and Pathways Altered in Pseudomyxoma Peritonei. Biol Proced Online 2024; 26:13. [PMID: 38750435 PMCID: PMC11094946 DOI: 10.1186/s12575-024-00239-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 04/25/2024] [Indexed: 05/19/2024] Open
Abstract
BACKGROUND Pseudomyxoma peritonei (PMP) is a rare peritoneal mucinous carcinomatosis with largely unknown underlying molecular mechanisms. Cytoreductive surgery combined with hyperthermic intraperitoneal chemotherapy is the only therapeutic option; however, despite its use, recurrence with a fatal outcome is common. The lack of molecular characterisation of PMP and other mucinous tumours is mainly due to the physicochemical properties of mucin. RESULTS This manuscript describes the first protocol capable of breaking the mucin barrier and isolating proteins from mucinous tumours. Briefly, mucinous tumour samples were homogenised and subjected to liquid chromatography using two specific columns to reduce mainly glycoproteins, albumins and immunoglobulin G. The protein fractions were then subjected to mass spectrometry analysis and the proteomic profile obtained was analysed using various bioinformatic tools. Thus, we present here the first proteome analysed in PMP and identified a distinct mucin isoform profile in soft compared to hard mucin tumour tissues as well as key biological processes/pathways altered in mucinous tumours. Importantly, this protocol also allowed us to identify MUC13 as a potential tumour cell marker in PMP. CONCLUSIONS In sum, our results demonstrate that this protein isolation protocol from mucin will have a high impact, allowing the oncology research community to more rapidly advance in the knowledge of PMP and other mucinous neoplasms, as well as develop new and effective therapeutic strategies.
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Affiliation(s)
- Antonio Romero-Ruiz
- Department of Biochemistry and Molecular Biology, University of Córdoba, Córdoba, Spain.
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain.
| | - Melissa Granados-Rodríguez
- Department of Biochemistry and Molecular Biology, University of Córdoba, Córdoba, Spain
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
| | - Florina I Bura
- Department of Biochemistry and Molecular Biology, University of Córdoba, Córdoba, Spain
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
| | - Francisca Valenzuela-Molina
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
- Surgical Oncology Unit, Surgery Department, Reina Sofía University Hospital, Córdoba, Spain
| | - Blanca Rufián-Andújar
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
- Surgical Oncology Unit, Surgery Department, Reina Sofía University Hospital, Córdoba, Spain
| | - Ana Martínez-López
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
- Pathology Unit, HURS, Córdoba, Spain
| | - Lidia Rodríguez-Ortiz
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
- Surgical Oncology Unit, Surgery Department, Reina Sofía University Hospital, Córdoba, Spain
| | - Rosa Ortega-Salas
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
- Pathology Unit, HURS, Córdoba, Spain
| | - María Torres-Martínez
- Department of Biochemistry and Molecular Biology, University of Córdoba, Córdoba, Spain
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
| | - Ana Moreno-Serrano
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
| | - Justo Castaño
- Department of Cell Biology, Physiology, and Immunology, University of Córdoba, Córdoba, Spain
- CIBER Fisiopatología de La Obesidad y Nutrición, Córdoba, Spain
| | - Carmen Michán
- Department of Biochemistry and Molecular Biology, University of Córdoba, Córdoba, Spain
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
| | - José Alhama
- Department of Biochemistry and Molecular Biology, University of Córdoba, Córdoba, Spain
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
| | - Mari C Vázquez-Borrego
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain.
| | - Álvaro Arjona-Sánchez
- Maimonides Biomedical Research Institute of Córdoba, IMIBIC and University of Córdoba, Av. Menéndez Pidal, s/n, Córdoba, 14004, Spain
- Surgical Oncology Unit, Surgery Department, Reina Sofía University Hospital, Córdoba, Spain
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Shringi S, Agrawal AK, Gadkari P. A Review of Pseudomyxoma Peritonei: Insights Into Diagnosis, Management, and Prognosis. Cureus 2024; 16:e61244. [PMID: 38939264 PMCID: PMC11210681 DOI: 10.7759/cureus.61244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 05/28/2024] [Indexed: 06/29/2024] Open
Abstract
Pseudomyxoma peritonei (PMP) is a rare and complex clinical syndrome characterized by the accumulation of mucinous ascites within the peritoneal cavity, typically associated with mucinous tumours of appendiceal origin. Despite its rarity, PMP poses significant challenges in diagnosis and management due to its indolent yet locally aggressive nature. This comprehensive review provides insights into the diagnosis, management, and prognosis of PMP, synthesizing current evidence and emerging trends in the field. Challenges and opportunities in PMP management are discussed, along with recommendations for clinical practice emphasizing the importance of a multidisciplinary approach and specialized care. Despite ongoing challenges, advances in surgical techniques, perioperative chemotherapy, and emerging therapies offer hope for improved outcomes and quality of life for PMP patients.
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Affiliation(s)
- Siddhi Shringi
- Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Anil K Agrawal
- Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Pravin Gadkari
- Pathology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Lin YL, Zhu JQ, Ma RQ, Meng W, Wang ZY, Li XB, Ma R, Wu HL, Xu HB, Gao Y, Li Y. Whole-Exome Sequencing Identifies Mutation Profile and Mutation Signature-Based Clustering Associated with Prognosis in Appendiceal Pseudomyxoma Peritonei. Mol Cancer Res 2024; 22:70-81. [PMID: 37768171 DOI: 10.1158/1541-7786.mcr-22-0801] [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: 10/11/2022] [Revised: 01/18/2023] [Accepted: 09/25/2023] [Indexed: 09/29/2023]
Abstract
Pseudomyxoma peritonei (PMP) is a rare malignant clinical syndrome with little known about the global mutation profile. In this study, whole-exome sequencing (WES) was performed in 49 appendiceal PMP to investigate mutation profiles and mutation signatures. A total of 4,020 somatic mutations were detected, with a median mutation number of 56 (1-402). Tumor mutation burden (TMB) was generally low (median 1.55 mutations/Mb, 0.12-11.26 mutations/Mb). Mutations were mainly enriched in the function of cancer-related axonogenesis, extracellular matrix-related processes, calcium signaling pathway, and cAMP signaling pathway. Mutations in FCGBP, RBFOX1, SPEG, RTK-RAS, PI3K-AKT, and focal adhesion pathways were associated with high-grade mucinous carcinoma peritonei. These findings revealed distinct mutation profile in appendiceal PMP. Ten mutation signatures were identified, dividing patients into mutation signature cluster (MSC) 1 (N = 28, 57.1%) and MSC 2 (N = 21, 42.9%) groups. MSC (P = 0.007) was one of the four independent factors associated with 3-year survival. TMB (P = 0.003) and microsatellite instability (P = 0.002) were independent factors associated with MSC 2 grouping. Taken together, our findings provided a broader view in the understanding of molecular pathologic mechanism in appendiceal PMP and may be critical to developing an individualized approach to appendiceal PMP treatment. IMPLICATIONS This work describes exhaustive mutation profile of PMP based on WES data and derives ten mutation signatures, which divides patients into two clusters and serve as an independent prognostic factor associated with 3-year survival.
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Affiliation(s)
- Yu-Lin Lin
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | | | - Rui-Qing Ma
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Wei Meng
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Zi-Yue Wang
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Xin-Bao Li
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Ru Ma
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - He-Liang Wu
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Peking University Ninth School of Clinical Medicine, Beijing, China
| | - Hong-Bin Xu
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Ying Gao
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yan Li
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Department of Surgical Oncology, Beijing Tsinghua Changgung Hospital affiliated to Tsinghua University, Beijing, China
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8
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Yang R, Fu YB, Li XB, Ma R, Su YD, Wu HL, Liang XL, Li Y. Long-term survival in patients with PMP: a single-institutional retrospective study from China. World J Surg Oncol 2023; 21:347. [PMID: 37891655 PMCID: PMC10612327 DOI: 10.1186/s12957-023-03232-1] [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: 08/01/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND As the standard treatment for pseudomyxoma peritonei (PMP), cytoreductive surgery (CRS) plus hyperthermic intraperitoneal chemotherapy (HIPEC) can significantly prolong the survival of PMP patients, and some patients can even achieve long-term survival (LTS) or clinical cure. The purpose of this study was to analyze the clinicopathological and treatment features of PMP patients with LTS and to explore the survival benefit factors of PMP patients. METHODS The clinicopathological and prognostic data of PMP patients who received CRS + HIPEC at our center from December 2004 to May 2023 were retrospectively analyzed. PMP patients were divided into LTS group (≥ 10 years) and short-term survival (STS) group (< 5 years) according to the length of natural history. Univariate and multivariate analyses were performed to explore the beneficial factors of PMP patients with LTS. RESULTS A total of 609 patients with PMP received CRS + HIPEC treatment at our center. Two-hundred one patients with PMP were included in the study after screening, including 39 patients (19.4%) in the LTS group and 162 patients (80.6%) in the STS group. In STS group and LTS group, median overall survival based on natural history was 29.2 (2.4-59.9) vs. 138.9 (120.3-416.7) months. Univariate analysis revealed 8 factors (P < 0.05) with statistically significant differences between the two groups: gender, chemotherapy history, previous surgical score, Karnofsky Performance Status score, pathological diagnosis, lymphatic metastasis, peritoneal cancer index, and completeness of cytoreduction (CC). Multivariate analysis identified only two factors independently associated with LTS of PMP patients: CC and pathological diagnosis. CONCLUSION Complete CRS and pathological features are two key factors affecting LTS in PMP patients.
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Affiliation(s)
- Rui Yang
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Yu-Bin Fu
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Xin-Bao Li
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Ru Ma
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Yan-Dong Su
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - He-Liang Wu
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Peking University Ninth School of Clinical Medicine, Beijing, 100038, China
| | - Xin-Li Liang
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
| | - Yan Li
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China.
- Department of Surgical Oncology, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, 102218, China.
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Geisel D, Langen U, Rüdiger T. Oral administration of bromelain and acetylcysteine in pseudomyxoma peritonei (PMP) caused by low-grade appendiceal mucinous neoplasm (LAMN): a case report. J Med Case Rep 2023; 17:297. [PMID: 37381056 DOI: 10.1186/s13256-023-04024-7] [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: 12/21/2022] [Accepted: 05/21/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Pseudomyxoma Peritonei (PMP) is a severe neoplastic clinical syndrome characterised by secretion of mucin from tumors often originating in the appendix. The standard treatment includes cytoreductive surgery (CRS) combined with heated intraperitoneal chemotherapy (HIPEC). A new perspective in PMP treatment aims at the mucins themselves as a therapeutic target. CASE PRESENTATION Here we report the first case of PMP with peritoneal dissemination of mucinous implants caused by low-grade appendiceal mucinous neoplasm (LAMN) in a 58-year-old white male exclusively treated by appendectomy and oral administration of bromelain and acetylcysteine in the context of a medical self-experimentation (by co-author T.R.). Observation so far covers a period of 48 months including regular magnetic resonance imaging (MRI) with stable findings. CONCLUSIONS Oral administration of bromelain and acetylcysteine can be used in the treatment of PMP caused by LAMN without relevant clinical side effects.
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Affiliation(s)
- Dominik Geisel
- Department of Radiology, Charité, Universitätsmedizin Berlin, Campus Virchow-Klinikum, Klinik Für Radiologie, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Ute Langen
- Department of Radiology, Charité, Universitätsmedizin Berlin, Campus Virchow-Klinikum, Klinik Für Radiologie, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Thomas Rüdiger
- Department of Radiology, Charité, Universitätsmedizin Berlin, Campus Virchow-Klinikum, Klinik Für Radiologie, Augustenburger Platz 1, 13353, Berlin, Germany
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10
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Murage NW, Ahmed NM, Underwood TJ, Walters ZS, Breininger SP. The genetic profile and molecular subtypes of human pseudomyxoma peritonei and appendiceal mucinous neoplasms: a systematic review. Cancer Metastasis Rev 2023; 42:335-359. [PMID: 36723696 PMCID: PMC10014681 DOI: 10.1007/s10555-023-10088-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/20/2023] [Indexed: 02/02/2023]
Abstract
Pseudomyxoma peritonei (PMP) is a rare, progressive, slowly growing neoplastic condition which is poorly understood, with a 5-year progression-free survival rate as low as 48%. PMP is most commonly caused by appendiceal mucinous neoplasms (AMN), and understanding their genetic biology and pathogenicity may allow for the development of better novel systemic treatments to target key deleterious mutations and the implicated pathways. The primary aim of this systematic review was to identify the genetic profile of histologically confirmed human PMP or AMN samples. The secondary aim was to identify whether genetic marks could be used to predict patient survival. Ovid EMBASE, Ovid MEDLINE, PubMed, and Web of Science were searched to identify studies investigating the genetic profile of histologically-confirmed human PMP or AMN samples. We review findings of 46 studies totalling 2181 tumour samples. The most frequently identified somatic gene mutations in patients with PMP included KRAS (38-100%), GNAS (17-100%), and TP53 (5-23%); however, there were conflicting results of their effect on survival. Three studies identified molecular subtypes based on gene expression profiles classifying patients into oncogene-enriched, immune-enriched, and mixed molecular subtypes with prognostic value. This review summarises the current literature surrounding genetic aberrations in PMP and AMNs and their potential utility for targeted therapy. Given the recent advances in clinical trials to directly target KRAS and GNAS mutations in other cancers, we propose a rationale to explore these mutations in future pre-clinical studies in PMP with a view for a future clinical trial.
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Affiliation(s)
- Nora Wangari Murage
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton, SO17 1BJ, UK
| | - Nada Mabrouk Ahmed
- Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt.,Institute of Cardiovascular Sciences, University College London, London, UK
| | - Timothy J Underwood
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton, SO17 1BJ, UK
| | - Zoë S Walters
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton, SO17 1BJ, UK
| | - Stella Panagio Breininger
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton, SO17 1BJ, UK.
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Baratti D, Kusamura S, Guaglio M, Milione M, Pietrantonio F, Cavalleri T, Morano F, Deraco M. Relapse of Pseudomyxoma Peritonei After Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy: Pattern of Failure, Clinical Management and Outcomes. Ann Surg Oncol 2023; 30:404-414. [PMID: 36094689 DOI: 10.1245/s10434-022-12367-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 07/25/2022] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) have dramatically improved pseudomyxoma peritonei (PMP) prognosis, but treatment failures are still a concern. We investigated the pattern of failure, treatment and outcomes of progressing disease. METHODS A prospective database of 374 PMP patients was reviewed, and 152 patients relapsing after complete CRS/HIPEC were identified. PMP was graded according to the Peritoneal Surface Oncology Group International (PSOGI) classification. Hematogenous metastases and non-regional lymph node involvement were considered as systemic metastases. RESULTS Median follow-up was 78.3 months (95% confidence interval [CI] 66.7-90.4). PMP relapse involved the peritoneum in 112 patients, pleural cavity in 8, both peritoneum and pleura in 8, systemic sites in 11, and both peritoneum and systemic sites in 13 patients. Systemic metastases involved the lung (n = 14), liver (n = 4), distant nodes (n = 3), bone (n = 2), and both lung and distant nodes (n = 1). Survival after diagnosis of PMP relapse was independently associated with curative versus palliative treatment (hazard ratio [HR] 0.52, 95% CI 0.36-0.75; p = 0.001) and PSOGI histology (HR 1.80, 95% CI 1.19-2.74; p = 0.005), but was not influenced by site of failure (p = 0.444). Ten-year overall survival was 77.5% for 62 patients who had curative-intent surgery for PMP relapse, compared with 83.0% for 192 patients who had no recurrences (p = 0.154) and 26.1% for 90 patients who underwent palliative treatments (p = 0.001). CONCLUSIONS Relapse after CRS/HIPEC most commonly involves the peritoneum, but pleural recurrences and systemic metastases occur in a small but clinically relevant number of patients. In selected patients, surgical resection of recurrent disease can result in long survival, irrespective of sites of failure.
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Affiliation(s)
- Dario Baratti
- Peritoneal Malignancy Program, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
| | - Shigeki Kusamura
- Peritoneal Malignancy Program, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Marcello Guaglio
- Peritoneal Malignancy Program, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Massimo Milione
- Department of Pathology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Filippo Pietrantonio
- Department of Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Tommaso Cavalleri
- Peritoneal Malignancy Program, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Federica Morano
- Department of Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Marcello Deraco
- Peritoneal Malignancy Program, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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12
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Ye S, Zheng S. Comprehensive Understanding and Evolutional Therapeutic Schemes for Pseudomyxoma Peritonei: A Literature Review. Am J Clin Oncol 2022; 45:223-231. [PMID: 35446281 PMCID: PMC9028300 DOI: 10.1097/coc.0000000000000911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Pseudomyxoma peritonei is an infrequent solid tumor in clinical practice. The low morbidity and deficient understanding of this mucus-secreting malignant disease increase the risks of delayed identification or uncontrollable deterioration. In quite a lot cases, patients go through complete cytoreduction surgery and hyperthermic intraperitoneal chemotherapy could receive a long time survival over 5 years. But the recurrence rate is also hard to overlook. Unlike other types of cancer, the standard treatment for this considerable groups has not been confirmed yet. With the advanced medical progression, studies have been carrying out based on pathogenesis, biological characters, and mutated gene location. All but a few get statistical survival benefits, let alone the breaking progress on research or therapeutic practice in the field. We try to give a comprehensive exposition of pseudomyxoma peritonei around the epidemiology, radiologic features, clinical manifestation, present treatment and promising schemes, hoping to arise much attention and reflection on the feasible solutions, especially for the recrudescent part.
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Affiliation(s)
- Suiting Ye
- Fourth School of Clinical Medicine, Zhejiang Chinese Medical University
| | - Song Zheng
- Department of Oncology, Affiliated Hangzhou First People’s Hospital
- Department of Oncology, Affiliated Hangzhou Cancer Hospital, Zhejiang University School of Medicine
- Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Hangzhou, China
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Meer EM, Khazindar AR. Ruptured Appendiceal Mucocele Presenting as a Ventral Hernia: A Case Report of a Rare Presentation of Appendiceal Mucocele. Cureus 2022; 14:e23304. [PMID: 35464561 PMCID: PMC9013519 DOI: 10.7759/cureus.23304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2022] [Indexed: 11/05/2022] Open
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