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Mayoral M, Araujo-Filho JAB, Tan KS, Ortiz E, Adusumilli PS, Rusch V, Zauderer M, Ginsberg MS. Are there features that can predict the unresectability of pleural mesothelioma? Eur Radiol 2024:10.1007/s00330-024-10963-6. [PMID: 39143249 DOI: 10.1007/s00330-024-10963-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 05/22/2024] [Accepted: 06/27/2024] [Indexed: 08/16/2024]
Abstract
INTRODUCTION The current clinical staging of pleural mesothelioma (PM) is often discordant with the pathologic staging. This study aimed to identify clinical and radiological features that could help predict unresectability in PM. METHODS Twenty-two descriptive radiologic features were retrospectively evaluated on preoperative computed tomography (CT) and/or positron emission tomography/CT (PET/CT) performed in patients with presumably resectable PM who underwent surgery. Measurements of maximum and sum pleural thickness at three levels of the thorax (upper, middle, and lower) were taken and stratified based on the cutpoints provided by the International Association for the Study of Lung Cancer (IASLC). Clinical and radiological features, including clinical-stage, were compared between resectable and unresectable tumors by univariate analysis and logistic regression modeling. RESULTS Of 133 patients, 69/133 (52%) had resectable and 64/133 (48%) had unresectable PM. Asbestos exposure (p = 0.005), neoadjuvant treatment (p = 0.001), clinical T-stage (p < 0.0001), all pleural thickness measurements (p < 0.05), pleural thickness pattern (p < 0.0001) and degree (p = 0.033), lung invasion (p = 0.004), extrapleural space obliteration (p < 0.0001), extension to subphrenic space (p = 0.0004), and two combination variables representing extensive diaphragmatic contact and/or chest wall involvement (p = 0.002) and mediastinal invasion (p < 0.0001) were significant predictors at univariate analysis. At multivariable analysis, all models achieved a strong diagnostic performance (area under the curve (AUC) > 0.8). The two best-performing models were one that included the upper-level maximum pleural thickness, extrapleural space obliteration, and mediastinal infiltration (AUC = 0.876), and another that integrated clinical variables and radiological assessment through the clinical T-stage (AUC = 0.879). CONCLUSION Selected clinical and radiologic features, including pleural thickness measurements, appear to be strong predictors of unresectability in PM. CLINICAL RELEVANCE STATEMENT A more accurate prediction of unresectability in the preoperative assessment of patients with pleural mesothelioma may avoid unnecessary surgery and prompt initiation of nonsurgical treatments. KEY POINTS About half of pleural mesothelioma patients are reported to receive an incorrect disease stage preoperatively. Eleven features identified as predictors of unresectability were included in strongly performing predictive models. More accurate preoperative staging will help clinicians and patients choose the most appropriate treatments.
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Affiliation(s)
- Maria Mayoral
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA.
- Medical Imaging Department, Hospital Clinic of Barcelona, 170 Villarroel street, Barcelona, 08036, Spain.
| | | | - Kay See Tan
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Eduardo Ortiz
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Prasad S Adusumilli
- Department of Surgery, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Valerie Rusch
- Department of Surgery, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Marjorie Zauderer
- Department of Medical Oncology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Michelle S Ginsberg
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
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Hyseni A, Viehof J, Hockmann J, Metzenmacher M, Eberhardt W, Herrmann K, Hautzel H, Aigner C, Plönes T. The Incidence of Distant Metastases in Patients with Pleural Mesothelioma Screened for a Multimodal Approach: How Much Staging Do We Really Need? Cancers (Basel) 2024; 16:1917. [PMID: 38791995 PMCID: PMC11119211 DOI: 10.3390/cancers16101917] [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: 04/11/2024] [Revised: 05/10/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024] Open
Abstract
Pleural mesothelioma (PM) is a very aggressive malignancy with a poor prognosis. Most patients receive systemic treatment only; however, some patients may benefit from multimodality treatment. A precise staging of patients undergoing multimodal treatment is mandatory. We investigated the pattern of metastasis in a cohort of patients screened for multimodal treatment to define the extent of staging examinations. Additionally, we investigated the occurrence of metastasis during follow-up. We investigated a single-center experience of 545 patients newly diagnosed and/or treated with PM between the years 2010 and 2022. Patients who were treated naïvely and had a whole set of imaging of the brain were included and further analyzed. A total of 54% of all patients with cerebral imaging had an available 18FDG-PET CT scan. We also recorded metastasis during treatment follow-up. There were 110 patients who had a whole set of imaging (CT = 89% and MRI = 11%) of the brain, and 54% of all patients with cerebral imaging had an available 18FDG-PET CT scan. We identified four patients with cerebral metastasis at the time of first diagnosis, which means that 5.4% of the cohort had cerebral metastasis and 13.3% of all patients in the subgroup with complete data of 18FDG-PET CT had distant non-cerebral metastasis. During the longitudinal follow-up, we found 11 patients with newly diagnosed metastases after a median time of 1.6 years (range: 2 months to 3.3 years) after first diagnosis without metastases. Distant metastases are more frequent in mesothelioma patients than previously thought. This implies that extensive staging is needed for patients selected for multimodal treatment, including brain imaging and 18FDG-PET CT.
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Affiliation(s)
- Arberit Hyseni
- Department of Thoracic Surgery and Endoscopy, Ruhrlandklinik, West German Cancer Center, University Hospital, University of Duisburg-Essen, 45239 Essen, Germany
| | - Jan Viehof
- Department of Thoracic Surgery and Endoscopy, Ruhrlandklinik, West German Cancer Center, University Hospital, University of Duisburg-Essen, 45239 Essen, Germany
| | - Jan Hockmann
- Department of Thoracic Surgery and Endoscopy, Ruhrlandklinik, West German Cancer Center, University Hospital, University of Duisburg-Essen, 45239 Essen, Germany
| | - Martin Metzenmacher
- Department of Medical Oncology, West German Cancer Center, University Clinic Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Wilfried Eberhardt
- Department of Medical Oncology, West German Cancer Center, University Clinic Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, Medical Faculty, University Duisburg-Essen, 45147 Essen, Germany
| | - Hubertus Hautzel
- Department of Nuclear Medicine, Medical Faculty, University Duisburg-Essen, 45147 Essen, Germany
| | - Clemens Aigner
- Department of Thoracic Surgery and Endoscopy, Ruhrlandklinik, West German Cancer Center, University Hospital, University of Duisburg-Essen, 45239 Essen, Germany
| | - Till Plönes
- Department of Thoracic Surgery and Endoscopy, Ruhrlandklinik, West German Cancer Center, University Hospital, University of Duisburg-Essen, 45239 Essen, Germany
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Gill RR, Nowak AK, Giroux DJ, Eisele M, Rosenthal A, Kindler H, Wolf A, Ripley RT, Billé A, Rice D, Opitz I, Rimner A, de Perrot M, Pass HI, Rusch VW. The International Association for the Study of Lung Cancer Mesothelioma Staging Project: Proposals for Revisions of the "T" Descriptors in the Forthcoming Ninth Edition of the TNM Classification for Pleural Mesothelioma. J Thorac Oncol 2024:S1556-0864(24)00086-8. [PMID: 38521202 DOI: 10.1016/j.jtho.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/27/2024] [Accepted: 03/01/2024] [Indexed: 03/25/2024]
Abstract
INTRODUCTION The primary tumor (T) component in the eighth edition of pleural mesothelioma (PM) staging system is based on pleural involvement and extent of invasion. Quantitative assessment of pleural tumor has been found to be prognostic. We explored quantitative and qualitative metrics to develop recommendations for T descriptors in the upcoming ninth edition of the PM staging system. METHODS The International Association for the Study of Lung Cancer prospectively collected data on patients with PM. Sum of maximum pleural thickness (Psum) was recorded. Optimal combinations of Psum and eighth edition cT descriptors were assessed using recursive binary splitting algorithm, with bootstrap resampling to correct for the adaptive nature of the splitting algorithm, and validated in the eighth edition data. Overall survival (OS) was calculated by the Kaplan-Meier method and differences in OS assessed by the log-rank test. RESULTS Of 7338 patients submitted, 3598 were eligible for cT analysis and 1790 had Psum measurements. Recursive partitioning identified optimal cutpoints of Psum at 12 and 30 mm, which, in combination with extent of invasion, yielded four prognostic groups for OS. Fmax greater than 5 mm indicated poor prognosis. cT4 category (based on invasion) revealed similar performance to eighth edition. Three eighth edition descriptors were eliminated based on low predictive accuracy. Eighth edition pT descriptors remained valid in ninth edition analyses. CONCLUSION Given reproducible prognostication by Psum, size criteria will be incorporated into cT1 to T3 categories in the ninth edition. Current cT4 category and all pT descriptors will be maintained, with reclassification of fissural invasion as pT2.
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Affiliation(s)
- Ritu R Gill
- Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
| | - Anna K Nowak
- National Centre for Asbestos Related Diseases, Medical School, University of Western Australia, Crawley, Western Australia, Australia
| | | | - Megan Eisele
- Cancer Research And Biostatistics, Seattle, Washington
| | | | - Hedy Kindler
- Department of Medicine, Section of Hematology/Oncology, University of Chicago, Illinois
| | - Andrea Wolf
- Department of Cardiothoracic Surgery, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Robert T Ripley
- Department of Thoracic Surgery, Baylor College of Medicine, Houston, Texas
| | - Andre Billé
- Thoracic Surgery, Guy's Hospital, Thoracic Surgery, London, UK
| | - David Rice
- Thoracic Surgery, The University of Texas MD Anderson Cancer Center, Texas
| | - Isabelle Opitz
- Department of Thoracic Surgery, University Hospital Zurich, Switzerland
| | - Andreas Rimner
- Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marc de Perrot
- Thoracic Surgery, University Health Network, Toronto General Hospital & Princess Margaret Hospital, Toronto, Canada
| | - Harvey I Pass
- Thoracic Surgery, NYU Langone Medical Center, New York
| | - Valerie W Rusch
- Thoracic Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
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Okado S, Kato T, Hanamatsu Y, Emoto R, Imamura Y, Watanabe H, Kawasumi Y, Kadomatsu Y, Ueno H, Nakamura S, Mizuno T, Takeuchi T, Matsui S, Chen-Yoshikawa TF. CHST4 Gene as a Potential Predictor of Clinical Outcome in Malignant Pleural Mesothelioma. Int J Mol Sci 2024; 25:2270. [PMID: 38396947 PMCID: PMC10889779 DOI: 10.3390/ijms25042270] [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: 01/11/2024] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Malignant pleural mesothelioma (MPM) develops primarily from asbestos exposures and has a poor prognosis. In this study, The Cancer Genome Atlas was used to perform a comprehensive survival analysis, which identified the CHST4 gene as a potential predictor of favorable overall survival for patients with MPM. An enrichment analysis of favorable prognostic genes, including CHST4, showed immune-related ontological terms, whereas an analysis of unfavorable prognostic genes indicated cell-cycle-related terms. CHST4 mRNA expression in MPM was significantly correlated with Bindea immune-gene signatures. To validate the relationship between CHST4 expression and prognosis, we performed an immunohistochemical analysis of CHST4 protein expression in 23 surgical specimens from surgically treated patients with MPM who achieved macroscopic complete resection. The score calculated from the proportion and intensity staining was used to compare the intensity of CHST4 gene expression, which showed that CHST4 expression was stronger in patients with a better postoperative prognosis. The median overall postoperative survival was 107.8 months in the high-expression-score group and 38.0 months in the low-score group (p = 0.044, log-rank test). Survival after recurrence was also significantly improved by CHST4 expression. These results suggest that CHST4 is useful as a prognostic biomarker in MPM.
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Affiliation(s)
- Shoji Okado
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
| | - Taketo Kato
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
| | - Yuki Hanamatsu
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu 501-1194, Japan; (Y.H.); (T.T.)
| | - Ryo Emoto
- Department of Biostatistics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (R.E.); (S.M.)
| | - Yoshito Imamura
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
| | - Hiroki Watanabe
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
| | - Yuta Kawasumi
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
| | - Yuka Kadomatsu
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
| | - Harushi Ueno
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
| | - Shota Nakamura
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
| | - Tetsuya Mizuno
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
| | - Tamotsu Takeuchi
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu 501-1194, Japan; (Y.H.); (T.T.)
| | - Shigeyuki Matsui
- Department of Biostatistics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (R.E.); (S.M.)
| | - Toyofumi Fengshi Chen-Yoshikawa
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; (S.O.); (T.K.); (Y.I.); (H.W.); (Y.K.); (Y.K.); (H.U.); (S.N.); (T.M.)
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Miller DL, Parks CS, Ange B, Bonta IR, Rich PT. Hyperthermic intrathoracic extracorporeal chemotherapy for secondary malignant pleural disease. J Surg Oncol 2023; 128:604-611. [PMID: 37409778 DOI: 10.1002/jso.27389] [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: 01/07/2023] [Revised: 05/29/2023] [Accepted: 06/15/2023] [Indexed: 07/07/2023]
Abstract
OBJECTIVES Pleural metastasis has extremely poor prognosis. Resection of pleural implants with infusion of intrathoracic hyperthermic chemotherapy may offer a survival advantage in selected patients. We evaluated the safety and efficacy of hyperthermic intrathoracic extracorporeal chemotherapy (HITEC) in patients who underwent pleurectomy/decortication (P/D) for secondary malignant pleural disease (SPD). METHODS A total of 101 patients were evaluated over 72 months, with 35 patients electing to proceed with P/D and 60 minutes of HITEC with cisplatin at 42°C. Inclusion criteria were adults 18-79 years with unilateral pleural dissemination. Exclusion criteria were patients without control of primary site, extrathoracic metastatic disease, significant comorbidities, and a history of adverse reaction to cisplatin. RESULTS Median age was 56 years (36-73); 60% were women. SPD was thymoma in 13, breast cancer in 9, lung cancer in 6, colon cancer in 2, renal cell in 2, and esophageal, anal, and thymic cancers in one each. There was no operative mortality. Postoperative complications occurred in 18 patients (51%). No patient developed renal failure. Median follow-up was 24 months (4-60). The overall survival rate was 61%; 17 patients (49%) developed recurrent disease at a median of 12 months (6-36). There were no recurrences after 36 months Eleven patients (31%) died of metastatic disease at a median of 17 months (7-25). CONCLUSIONS Surgical cytoreduction of SPD followed by HITEC with cisplatin was well tolerated. No patient developed cisplatin-related toxicities. Long-term follow-up is warranted to determine survival advantage and refinement of inclusion criteria.
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Messina G, Bove M, Natale G, Di Filippo V, Opromolla G, Rainone A, Leonardi B, Martone M, Fiorelli A, Vicidomini G, Santini M, Ronchi A, Massimilla E, Della Corte CM, Pirozzi M, Caterino M, Ciardiello F, Fasano M. Diagnosis of malignant pleural disease: Ultrasound as "a detective probe". Thorac Cancer 2022; 14:223-230. [PMID: 36415167 PMCID: PMC9870740 DOI: 10.1111/1759-7714.14735] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Malignant pleural mesothelioma (MPM) is an invasive, aggressive pleural tumor with a predominantly local spread. The objective of this study was to assess thoracic ultrasound (TUS) as an imaging modality with high sensitivity for the identification of malignant pleural involvement and in order to guide pleural biopsies. METHODS In this retrospective single-center study between January 2018 and June 2022, 51 consecutive patients with impassable circumferential pleural thickening underwent TUS at the Thoracic Surgery Unit of the Vanvitelli University of Naples. Pleural biopsies were performed, and then large and multiple samples were sent to the pathological anatomy for histological examination. RESULTS In all patients who underwent ultrasound examination, we chose the optimal point of entry to perform pleural biopsies and selected the areas of greater thickening without pleural effusion. No patient had any complications. No drainage tubes were placed after the pleural biopsies and no pneumothorax was present during the following days of hospitalization. The patients were discharged on the second postoperative day. CONCLUSION With TUS the precise pleural thickening localization, local infiltration, mass extent, its nature (solid, cystic or complex) and ultrasound features can be easily defined. Furthermore, ultrasound is more economical than computed tomography and avoids the risks associated with radiation. Thoracic ultrasound is an important component of the diagnostic procedure in detecting a safe entry site for biopsies of MPMs.
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Affiliation(s)
- Gaetana Messina
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Mary Bove
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Giovanni Natale
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Vincenzo Di Filippo
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Giorgia Opromolla
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Anna Rainone
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Beatrice Leonardi
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Mario Martone
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Alfonso Fiorelli
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Giovanni Vicidomini
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Mario Santini
- Thoracic Surgery UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | - Andrea Ronchi
- Pathology Unit, Department of Mental and Physical Health and Preventive MedicineUniversity of Campania Luigi VanvitelliNaplesItaly
| | - Eva Massimilla
- Otorhinolaryngology UnitUniversità degli Studi della Campania "Luigi Vanvitelli"NaplesItaly
| | | | - Mario Pirozzi
- Oncology, Department of Precision MedicineUniversità della Campania "L. Vanvitelli"NaplesItaly
| | - Marianna Caterino
- Oncology, Department of Precision MedicineUniversità della Campania "L. Vanvitelli"NaplesItaly
| | - Fortunato Ciardiello
- Oncology, Department of Precision MedicineUniversità della Campania "L. Vanvitelli"NaplesItaly
| | - Morena Fasano
- Oncology, Department of Precision MedicineUniversità della Campania "L. Vanvitelli"NaplesItaly
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Tumor extracellular vesicles mediate anti-PD-L1 therapy resistance by decoying anti-PD-L1. Cell Mol Immunol 2022; 19:1290-1301. [PMID: 36220994 PMCID: PMC9622748 DOI: 10.1038/s41423-022-00926-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/05/2022] [Indexed: 11/25/2022] Open
Abstract
PD-L1+ tumor-derived extracellular vesicles (TEVs) cause systemic immunosuppression and possibly resistance to anti-PD-L1 antibody (αPD-L1) blockade. However, whether and how PD-L1+ TEVs mediate αPD-L1 therapy resistance is unknown. Here, we show that PD-L1+ TEVs substantially decoy αPD-L1 and that TEV-bound αPD-L1 is more rapidly cleared by macrophages, causing insufficient blockade of tumor PD-L1 and subsequent αPD-L1 therapy resistance. Inhibition of endogenous production of TEVs by Rab27a or Coro1a knockout reverses αPD-L1 therapy resistance. Either an increased αPD-L1 dose or macrophage depletion mediated by the clinical drug pexidartinib abolishes αPD-L1 therapy resistance. Moreover, in the treatment cycle with the same total treatment dose of αPD-L1, high-dose and low-frequency treatment had better antitumor effects than low-dose and high-frequency treatment, induced stronger antitumor immune memory, and eliminated αPD-L1 therapy resistance. Notably, in humanized immune system mice with human xenograft tumors, both increased αPD-L1 dose and high-dose and low-frequency treatment enhanced the antitumor effects of αPD-L1. Furthermore, increased doses of αPD-L1 and αPD-1 had comparable antitumor effects, but αPD-L1 amplified fewer PD-1+ Treg cells, which are responsible for tumor hyperprogression. Altogether, our results reveal a TEV-mediated mechanism of αPD-L1-specific therapy resistance, thus providing promising strategies to improve αPD-L1 efficacy.
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Li Y, Cai B, Wang B, Lv Y, He W, Xie X, Hou D. Differentiating malignant pleural mesothelioma and metastatic pleural disease based on a machine learning model with primary CT signs: A multicentre study. Heliyon 2022; 8:e11383. [PMID: 36387542 PMCID: PMC9647442 DOI: 10.1016/j.heliyon.2022.e11383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/09/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
Rationale and Objectives It is still a challenge to make confirming diagnosis of malignant pleural mesothelioma (MPM), especially differentiating from metastatic pleural disease (MPD). The aim of this study was to develop a model to distinguish MPM with MPD based on primary CT signs. Materials and methods We retrospectively recruited 150 MPM patients and 147 MPD patients from two centers and assigned them to training (115 MPM patients and 113 MPD patients) and testing (35 MPM patients and 34 MPD patients) cohorts. The images were analyzed for pleural thickening, hydrothorax, lymphadenopathy, thoracic volume and calcified pleural plaque (CPP). The selected clinical characteristics and primary CT signs comprised the model by multivariate logistic regression in the training cohort. Then the model was tested on the external testing cohort. ROC curve and F1 score were used to validate the capability of the model in both two cohorts. Results There were significant differences between two groups: (1) carcinoembryonic antigen (CEA); (2) nodular and mass pleural thickening; (3) the enhancement of pleura; (4) focal, diffuse and circumferential pleural thickening; (5) the thickest pleura; (6) thickening of diaphragmatic pleura; (7) multiple nodules and effusion of interlobar pleura; (8) hilar LN and ring enhancement of LN; (9) punctate and stipe CPP. The AUC and F1 score of the model were 0.970 and 0.857 in the training cohort, 0.955 and 0.818 in the testing cohort. Conclusion The model holds promise for use as a diagnostic tool to distinguish MPM from MPD.
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Sandach P, Seifert R, Fendler WP, Hautzel H, Herrmann K, Maier S, Plönes T, Metzenmacher M, Ferdinandus J. A Role for PET/CT in response assessment of malignant pleural mesothelioma. Semin Nucl Med 2022; 52:816-823. [PMID: 35624033 DOI: 10.1053/j.semnuclmed.2022.04.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 04/21/2022] [Indexed: 12/14/2022]
Abstract
Malignant pleural mesothelioma is a rare type of cancer, whose incidence, however, is increasing and will presumably continue to rise in the coming years. Key features of this disease comprise its mantle-shaped, pleura-associated, often multifocal growth, which cause diagnostic challenges. A growing number of mesotheliomas are being treated with novel immunotherapies for which no image derived general response criteria have been established. However, recent studies indicate that FDG-PET/CT could be superior for response assessment compared to CT-based criteria. This article aims at providing an overview of response assessment criteria dedicated to malignant pleural mesothelioma, such as mRECIST, iRECIST, and PERCIST. In addition, the potential future role of PET/CT in the management of malignant pleural mesothelioma will also be discussed.
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Affiliation(s)
- Patrick Sandach
- Department of Nuclear Medicine, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany.
| | - Robert Seifert
- Department of Nuclear Medicine, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany
| | - Wolfgang P Fendler
- Department of Nuclear Medicine, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany
| | - Hubertus Hautzel
- Department of Nuclear Medicine, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany
| | - Ken Herrmann
- Department of Nuclear Medicine, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany
| | - Sandra Maier
- Department of Diagnostical and Interventional Radiology, University Hospital Essen, Essen, Germany
| | - Till Plönes
- Department of Thoracic Surgery, West German Cancer Center, University Medicine Essen Ruhrlandklinik, University Duisburg-Essen, Essen, Germany
| | - Martin Metzenmacher
- Department of Medical Oncology, West German Cancer Center (WTZ), University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Justin Ferdinandus
- Department of Nuclear Medicine, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany
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