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Zhou S, Liu L, Li H, Eilers G, Kuang Y, Shi S, Yan Z, Li X, Corson JM, Meng F, Zhou H, Sheng Q, Fletcher JA, Ou WB. Multipoint targeting of the PI3K/mTOR pathway in mesothelioma. Br J Cancer 2014; 110:2479-88. [PMID: 24762959 PMCID: PMC4021537 DOI: 10.1038/bjc.2014.220] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 03/20/2014] [Accepted: 03/27/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Mesothelioma is a notoriously chemotherapy-resistant neoplasm, as is evident in the dismal overall survival for patients with those of asbestos-associated disease. We previously demonstrated co-activation of multiple receptor tyrosine kinases (RTKs), including epidermal growth factor receptor (EGFR), MET, and AXL in mesothelioma cell lines, suggesting that these kinases could serve as novel therapeutic targets. Although clinical trials have not shown activity for EGFR inhibitors in mesothelioma, concurrent inhibition of various activated RTKs has pro-apoptotic and anti-proliferative effects in mesothelioma cell lines. Thus, we hypothesised that a coordinated network of multi-RTK activation contributes to mesothelioma tumorigenesis. METHODS Activation of PI3K/AKT/mTOR, Raf/MAPK, and co-activation of RTKs were evaluated in mesotheliomas. Effects of RTK and downstream inhibitors/shRNAs were assessed by measuring mesothelioma cell viability/growth, apoptosis, activation of signalling intermediates, expression of cell-cycle checkpoints, and cell-cycle alterations. RESULTS We demonstrate activation of the PI3K/AKT/p70S6K and RAF/MEK/MAPK pathways in mesothelioma, but not in non-neoplastic mesothelial cells. The AKT activation, but not MAPK activation, was dependent on coordinated activation of RTKs EGFR, MET, and AXL. In addition, PI3K/AKT/mTOR pathway inhibition recapitulated the anti-proliferative effects of concurrent inhibition of EGFR, MET, and AXL. Dual targeting of PI3K/mTOR by BEZ235 or a combination of RAD001 and AKT knockdown had a greater effect on mesothelioma proliferation and viability than inhibition of individual activated RTKs or downstream signalling intermediates. Inhibition of PI3K/AKT was also associated with MDM2-p53 cell-cycle regulation. CONCLUSIONS These findings show that PI3K/AKT/mTOR is a crucial survival pathway downstream of multiple activated RTKs in mesothelioma, underscoring that PI3K/mTOR is a compelling target for therapeutic intervention.
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Sugarbaker D, Richards WG, Alsup CA, Jaklitsch MT, Corson JM, Godleski JJ, Chirieac LR, Bueno R, Zellos L. Impact of pathological staging on survival in patients with epithelial mesothelioma treated with extrapleural pneumonectomy. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.7706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7706 Objective: There is no universally accepted staging system in malignant pleural mesothelioma (MPM). A seventeen-year single institution experience of surgically treating a large epithelial MPM cohort with extrapleural pneumonectomy (EPP) gives insight to the applications and limitations of BWH/ DFCI and AJCC staging systems. Methods: We retrospectivly reviewed 526 consecutive patients with epithelial MPM who were surgically explored at our institution since 1988 with intent to perform EPP. Pathologic diagnoses of mesothelioma were confirmed and clinicopathologic data were recorded. Kaplan-Meyer survival from diagnosis was calculated. Those who underwent EPP were staged using BWH / DFCI (J Thorac Cardiov Surg 117:5463;1999) and AJCC (6th Edition) criteria. Operative deaths were included in the analysis and patients received varied adjuvant regimens. Results: Of 526 patients explored for potential EPP, 53 (10%) underwent alternative pleurectomy and 55 (11%) were unresectable. The remaining 418 (79%) underwent EPP. Of these, 307 (73%) were male. Median age at diagnosis was 57.9 years (17–78). Operative mortality was 5%. Median follow-up was 16 months and 23% of observations were censored. Overall median, 1-yr, 3-yr and 5-yr survival was: 18.9 mo., 68.8%, 26.3%, and 13.9%. The table below presents Kaplan-Meyer survival by stage. Conclusions: 1) Both pathological staging systems stratify survival in this cohort, although each system is limited in that a majority of patients are classified as stage 3. 2) BWH / DFCI criteria identify more stage 1–2 patients with favorable prognosis, 164 (39%) vs 46 (11%). 3) AJCC criteria classify more patients to stage 4, 76 (18%) vs 4 (1%), but appear to identify some patients with relatively favorable prognosis. 4) Selected criteria from both systems might be combined to optimally stratify patients with epithelial MPM undergoing EPP. No significant financial relationships to disclose. [Table: see text]
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Sugarbaker DJ, Flores RM, Jaklitsch MT, Richards WG, Strauss GM, Corson JM, DeCamp MM, Swanson SJ, Bueno R, Lukanich JM, Baldini EH, Mentzer SJ. Resection margins, extrapleural nodal status, and cell type determine postoperative long-term survival in trimodality therapy of malignant pleural mesothelioma: results in 183 patients. J Thorac Cardiovasc Surg 1999; 117:54-63; discussion 63-5. [PMID: 9869758 DOI: 10.1016/s0022-5223(99)70469-1] [Citation(s) in RCA: 621] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Our aim was to identify prognostic variables for long-term postoperative survival in trimodality management of malignant pleural mesothelioma. METHODS From 1980 to 1997, 183 patients underwent extrapleural pneumonectomy followed by adjuvant chemotherapy and radiotherapy. RESULTS Forty-three women and 140 men (age range 31-76 years) had a median follow-up of 13 months. The perioperative mortality rate was 3.8% (7 deaths) and the morbidity, 50%. Survival in the 176 remaining patients was 38% at 2 years and 15% at 5 years (median 19 months). Univariate analysis identified 3 prognostic variables associated with improved survival: epithelial cell type (52% 2-year survival, 21% 5-year survival, 26-month median survival; P =.0001), negative resection margins (44% at 2 years, 25% at 5 years, median 23 months; P =.02), and extrapleural nodes without metastases (42% at 2 years, 17% at 5 years, median 21 months; P =.004). Using the Cox proportional hazards, the relative risk of death was calculated for nonepithelial cell type (OR 3.0, CI 2.0-4.5; P <.0001), positive resection margins (OR 1.7, CI 1.2-2.6; P =.0082), and metastatic extrapleural nodes (OR 2.0, CI 1.3-3.2; P =.0026). Thirty-one patients with 3 positive variables had the best survival (68% 2-year survival, 46% 5-year survival, median 51 months; P =.013). A previously published staging system using these variables stratified survival (P <.05). CONCLUSIONS (1) Multimodality therapy including extrapleural pneumonectomy is feasible in selected patients with malignant pleural mesotheliomas, (2) pre-resectional evaluation of extrapleural nodes may select patients for radical therapy, (3) microscopic resection margins affect long-term survival, highlighting the need for further investigation of locoregional control, and (4) patients with epithelial, margin-negative, extrapleural node-negative resection had extended survival.
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Samuels BL, Herndon JE, Harmon DC, Carey R, Aisner J, Corson JM, Suzuki Y, Green MR, Vogelzang NJ. Dihydro-5-azacytidine and cisplatin in the treatment of malignant mesothelioma: a phase II study by the Cancer and Leukemia Group B. Cancer 1998; 82:1578-84. [PMID: 9554537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND In a prior Cancer and Leukemia Group B (CALGB) Phase II trial of patients with advanced, previously untreated mesothelioma, dihydro-5-azacytidine (DHAC) demonstrated a 17% response rate, including 1 complete response, with only mild myelosuppression. This Phase II study (CALGB 9031) was conducted to determine the effectiveness of and toxicities that would result from adding cisplatin to DHAC administered to the same patient population. METHODS Thirty-six patients were treated with concurrent DHAC at 1500 mg/m2/day for 5 days by continuous infusion and cisplatin 15 mg/m2 daily for 5 days. Therapy was repeated every 3 weeks. Cisplatin was to be increased to 20 mg/m2 daily in subsequent cycles if toxicity was minimal. Therapy was continued until disease progression or excessive toxicity mandated discontinuation. RESULTS Overall, 5 objective responses were observed in 29 evaluated patients (objective response rate, 17%). The median duration of response was 6.6 months. Median survival was 6.4 months, with a median time to clinical failure of 2.7 months. The major toxicity noted was significant chest/pericardial pain, as was observed with DHAC alone. There were 2 early deaths of unknown cause on Days 9 and 17 of therapy, respectively. Significant leukopenia was observed in 29% of patients, but there were no neutropenic fevers. CONCLUSIONS The addition of cisplatin to DHAC did not increase the response rate over that observed with DHAC alone in patients with mesothelioma; however, it did increase toxicity, especially leukopenia. This combination is not recommended for further studies involving mesothelioma patients.
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Herndon JE, Green MR, Chahinian AP, Corson JM, Suzuki Y, Vogelzang NJ. Factors predictive of survival among 337 patients with mesothelioma treated between 1984 and 1994 by the Cancer and Leukemia Group B. Chest 1998; 113:723-31. [PMID: 9515850 DOI: 10.1378/chest.113.3.723] [Citation(s) in RCA: 412] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
PURPOSE To examine the individual and joint effect of various pretreatment clinical characteristics on the survival of patients with mesothelioma treated by the Cancer and Leukemia Group B (CALGB). PATIENTS AND METHODS Between June 1984 and September 1994, 337 patients with malignant mesothelioma and no prior chemotherapy were accrued to seven phase II studies conducted by the CALGB which screened the efficacy of 10 treatment regimens or dose levels. The eligibility criteria for all studies were virtually identical. Patient characteristics include the following: age older than 60 years (63%); male (83%); performance status (PS) of 0 or 1 (81%); chest pain (60%); definite asbestos exposure (62%); >5% weight loss (41%); and pleural involvement (94%). Median survival time (MST) for the 10 treatment regimens ranged from 3.9 to 9.8 months (overall=7.2; 95% confidence interval [CI], 6.5 to 8.3), with 1-year survival between 14% and 50% (overall=27%; 95% CI, 23 to 33%). RESULTS Cox survival models and exponential regression trees were used to examine the prognostic importance of pretreatment patient characteristics. Univariate analyses show that patients with poor Eastern Cooperative Oncology Group PS, chest pain, dyspnea, platelet count (PLT) >400,000/microL, weight loss, serum lactate dehydrogenase (LDH) level >500 IU/L, pleural involvement, low hemoglobin (HGB) level, high WBC count, and increasing age over 75 years have a worse prognosis. With decreasing risk ratio, multivariate Cox analyses showed that pleural involvement, LDH >500 IU/L, poor PS, chest pain, PLT >400,000/microL, nonepithelial histology, and increasing age older than 75 years jointly predict poor survival. PS was the most important prognostic split in the regression tree. Terminal nodes were amalgamated to form six distinct prognostic subgroups with MST (2-year survival) of 13.9 (38%) in 36 patients, 9.5 (21%) in 36 patients, 9.2 (10%) in 146 patients, 6.5 (3%) in 33 patients, 4.4 (0%) in 73 patients, and 1.4 (0%) in 13 patients (p<0.0001). CONCLUSIONS The subgroup with the best survival (MST=13.9 months) included patients with PS=0 and age younger than 49 years, and patients with PS=0, age of 49 years or older, and HGB > or =14.6. The worst survival (MST= 1.4 months) occurred for patients with PS= 1/2 and WBC > or =15.6/microL.
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Corson JM. Pathology of diffuse malignant pleural mesothelioma. Semin Thorac Cardiovasc Surg 1997; 9:347-55. [PMID: 9352951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
An accurate diagnosis is essential to a rational approach to the treatment of diffuse malignant pleural mesothelioma and generally requires pathological examination with the application of special techniques. In recent years, immunohistochemistry has greatly abetted the distinction of mesothelioma from its many morphological mimics, yet diagnostic difficulties still remain because reactive hyperplasias and diverse tumors closely mimic mesothelioma. Mesotheliomas are classified into epithelial, mixed, sarcomatoid and undifferentiated types, based on conventional histological examination. The classification provides important prognostic information. Furthermore, differential diagnosis is directly related to histological type. Although such special techniques as histochemistry and electron microscopy continue to play an important role in some cases, immunohistochemistry often has replaced these in distinguishing epithelial-type mesothelioma from metastatic adenocarcinoma. It is also helpful in distinguishing sarcomatoid mesothelioma from it numerous morphological mimics. The distinction of mesothelioma from reactive mesothelial proliferations is still based on morphological examination and may be quite problematic. Recent cytogenetic studies, which have identified characteristic clonal deletions in mesotheliomas, give promise of providing valuable assistance in this distinction in the future.
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Yogelzang NJ, Herndon JE, Cirrincione C, Harmon DC, Antman KH, Corson JM, Suzuki Y, Citron ML, Green MR. Dihydro-5-azacytidine in malignant mesothelioma. A phase II trial demonstrating activity accompanied by cardiac toxicity. Cancer and Leukemia Group B. Cancer 1997; 79:2237-42. [PMID: 9179072 DOI: 10.1002/(sici)1097-0142(19970601)79:11<2237::aid-cncr23>3.0.co;2-w] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Malignant mesothelioma is a disease that is refractory to chemotherapy. Therefore, the objective of this multi-institutional, cooperative group Phase II trial was to determine the efficacy of dihydro-5-azacytidine (DHAC), a pyrimidine analogue, in the treatment of malignant mesothelioma. METHODS Forty-one patients with histologically confirmed malignant mesothelioma received 120-hour continuous infusions of DHAC (1,500 mg/m2/day every 21 days) until maximal response, intolerable toxicity, or disease progression. RESULTS One patient had a complete response, two had objective partial responses, and four had regression of evaluable disease. The overall response rate was 17%. The one complete responder remains without disease progression at 6 years. Chest pain and nausea were the most common toxicities. Supraventricular tachycardia and pericardial effusion occurred in 20% and 15% of patients, respectively. In most patients, gastrointestinal effects were manageable. There was no significant hematologic toxicity. CONCLUSIONS In malignant mesothelioma, a disease that is refractory to chemotherapy, dihydro-5-azacytidine has definite antitumor activity. Its modest hematologic toxicity profile favors its use in combination with other agents. Caution regarding cardiac arrhythmias and pericardial effusion is necessary.
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Singer S, Sivaraja M, Souza K, Millis K, Corson JM. 1H-NMR detectable fatty acyl chain unsaturation in excised leiomyosarcoma correlate with grade and mitotic activity. J Clin Invest 1996; 98:244-50. [PMID: 8755630 PMCID: PMC507423 DOI: 10.1172/jci118785] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
We report on the use of 1H-NMR two-dimensional total correlated spectroscopy (2D TOCSY) at 600 MHz for an ex vivo analysis of fatty acyl chain lipid in normal smooth muscle and a series of primary retroperitoneal leiomyosarcomas. These TOCSY spectra were used to identify and quantitate the methylene protons situated between unsaturated site protons (D) to those bordered by only one unsaturated site proton (C). The D/C cross-peak volume ratios determined for oleic (18:1), linoleic (18:2), linolenic (18:3), and arachidonic (20:4) acids were 0.0, 1.3, 2.7, and 4.0, respectively, suggesting that this ratio can be a measure of the degree of unsaturation for fatty acyl chains of lipids. The D/C cross-peak volume ratio was found to be proportional to the mean mitotic activity (r = 0.94) in nine smooth muscle tissues. These results suggest, that for leiomyosarcoma, the degree of fatty acyl unsaturation may be an important determinant of the metastatic potential of these tumors. Furthermore, application of TOCSY for the ex vivo study of smooth muscle tumors would potentially serve as a pathologist-independent and quantitative method for assessment of leiomyosarcoma grade and mitotic activity thereby rendering a more accurate staging of patients.
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Weissmann LB, Corson JM, Neugut AI, Antman KH. Malignant mesothelioma following treatment for Hodgkin's disease. J Clin Oncol 1996; 14:2098-100. [PMID: 8683242 DOI: 10.1200/jco.1996.14.7.2098] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
PURPOSE Asbestos exposure is the major known risk factor for mesothelioma, but several case reports have suggested a link between radiation therapy and subsequent development of malignant mesothelioma. This report explores a possible association between radiation therapy for Hodgkin's disease and mesothelioma. PATIENTS AND METHODS Four cases of malignant mesothelioma were observed following Hodgkin's disease at the Mesothelioma Clinic of the Dana-Farber Cancer Institute. A fifth such patient was found after a review of the literature. RESULTS In all five cases, the mesothelioma arose in the field of prior radiotherapy. No history of asbestos exposure was elicited by careful questioning or by review of chest radiographs. Examination of lung tissue in one patient showed 250 ferruginous bodies per gram of lung tissue, consistent with no significant prior exposure. The mean interval between radiation treatment for Hodgkin's disease and development of mesothelioma was 15 years, which emphasizes the need for continued follow-up and evaluation of these patients and supports a causal relationship. CONCLUSION Mesothelioma may need to be added to the list of second malignancies that arise following radiation therapy for Hodgkin's disease. Further support is given to a causal link between radiation exposure and mesothelioma.
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Singer S, Baldini EH, Demetri GD, Fletcher JA, Corson JM. Synovial sarcoma: prognostic significance of tumor size, margin of resection, and mitotic activity for survival. J Clin Oncol 1996; 14:1201-8. [PMID: 8648375 DOI: 10.1200/jco.1996.14.4.1201] [Citation(s) in RCA: 158] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
PURPOSE The present study serves to describe outcomes-based prognostic variables characteristic of synovial cell sarcoma. PATIENTS AND METHODS An analysis was performed of a prospectively compiled data base of 48 consecutive patients with extremity and truncal synovial sarcomas seen between 1966 and 1994. RESULTS No local recurrences were observed among 27 patients who presented with localized primary disease. Patients with synovial sarcoma less than 5 cm in size has a cancer-specific survival rate at 10 years of 100%, compared with a 10-year survival rate of 32% and 0% for those with sarcoma 5 to 10 cm and greater than 10 cm, respectively (P = .002). Patients with synovial sarcoma with less than 10 mitoses per 10 high-power fields (hpf) had a 10-year cancer-specific survival rate of 46%, compared with a 10-year survival rate of 14% for those with sarcomas with greater than 10 mitoses per hpf (P = .04). Patients with a clean margin of excision were found to have a 10-year cancer-specific survival rate of 43%, compared with 0% for those with microscopic positive margins (P = .03). Among 14 patients treated with neoadjuvant chemotherapy, seven (50%) had objective responses. CONCLUSION Local control for patients with nonmetastatic disease was excellent. The overall cancer-specific survival rate for patients with localized synovial sarcoma was 34% at 10 years. Primary tumor size, margin of resection, and mean mitotic activity were prognostic factors for survival in synovial sarcoma. There was a high objective response rate to treatment with neoadjuvant chemotherapy; however, there was no detectable beneficial effects on survival in the subset of patients treated with chemotherapy versus nonrandomized patients who received no chemotherapy. Patients with synovial sarcoma > or = 5 cm in size, microscopic positive margins, and/or mean mitotic activity greater than 10 mitoses per 10 hpf should be targeted for new therapeutic studies.
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Naeem R, Lux ML, Huang SF, Naber SP, Corson JM, Fletcher JA. Ring chromosomes in dermatofibrosarcoma protuberans are composed of interspersed sequences from chromosomes 17 and 22. THE AMERICAN JOURNAL OF PATHOLOGY 1995; 147:1553-8. [PMID: 7495279 PMCID: PMC1869963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Ring chromosomes are found in most dermatofibrosarcoma protuberans (DFSPs), and recent reports demonstrate that portions of the DFSP ring chromosomes derive from chromosome 17. In this study we characterized ring chromosomes in three DFSPs using a combined approach of karyotyping, chromosome painting, and comparative genomic hybridization. Chromosome painting demonstrated that the ring chromosomes in each DFSP were composed of discontinuous, interwoven sequences from chromosomes 17 and 22. Amplification of chromosomes 17 and 22 sequences was confirmed in each of these cases by comparative genomic hybridization, and over-representation of chromosomes 17 and 22 sequences was also demonstrated by comparative genomic hybridization in 1 of 2 cytogenetically unremarkable DFSPs. We conclude that amplification of chromosomes 17 and 22 sequences, in ring form, is a characteristic aberration in DFSP.
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Poteat HT, Corson JM, Fletcher JA. Detection of chromosome 18 rearrangement in synovial sarcoma by fluorescence in situ hybridization. CANCER GENETICS AND CYTOGENETICS 1995; 84:76-81. [PMID: 7497448 DOI: 10.1016/0165-4608(95)00090-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Fluorescence in situ hybridization (FISH) evaluations of chromosome 18 were performed in synovial sarcoma, hemangiopericytoma, and mesothelioma. Each case was evaluated with centromeric and whole chromosome paint probes. The synovial sarcomas had t(X;18) cytogenetically, but the FISH evaluator was blinded to the cytogenetic results and to the histopathologic diagnosis. The FISH analyses were consistent with chromosome 18 translocation in 6 of 7 synovial sarcomas, 0 of 3 hemangiopericytomas, and 0 of 1 mesothelioma. These findings support the use of FISH in the diagnosis of synovial sarcoma.
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Xio S, Li D, Vijg J, Sugarbaker DJ, Corson JM, Fletcher JA. Codeletion of p15 and p16 in primary malignant mesothelioma. Oncogene 1995; 11:511-5. [PMID: 7630635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The p15 and p16 CDK4 inhibitor genes map within the chromosome band 9p21 region deleted frequently in malignant mesothelioma and other cancers. p16 has been implicated recently as a potential target of 9p21 deletions in mesothelioma, but the role of this gene is uncertain because deletions have been detected more often in established cell lines than in primary tumor specimens. We determined p15 and p16 copy number by fluorescence in situ hybridization with a P1 contig in 50 primary mesotheliomas. Codeletion of p15 and p16 was found in 72% of mesotheliomas, including all cases with spindle-cell components (n = 21) and total deletion of p15 and p16 was found in several mesotheliomas that lacked cytogenetic deletion of the chromosome 9 short arm. Point mutations were not found, however, in exon 2 of retained p15 and p16 alleles from seven mesotheliomas. These findings demonstrate that p15, p16 and/or a closely neighboring gene, are the targets of frequent chromosome 9p deletion in primary malignant mesothelioma.
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Xiao S, Li D, Corson JM, Vijg J, Fletcher JA. Codeletion of p15 and p16 genes in primary non-small cell lung carcinoma. Cancer Res 1995; 55:2968-71. [PMID: 7606711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Chromosome band 9p21 is deleted frequently in non-small cell lung carcinoma (NSCLC), and the p15 and p16 cyclin-dependent kinase-4 inhibitor genes map within this deletion region. Recent studies demonstrated deletion of p15 and p16 in NSCLC metastases and cell lines, suggesting a role for these genes in NSCLC progression. We now report p15 and p16 copy number, as determined by fluorescence in situ hybridization with a P1 contig, in 18 primary NSCLCs. Codeletion of p15 and p16 was found in 15 of 18 NSCLCs, and 1 of the 3 tumors with normal p15 and p16 copy number had a nonsense mutation in exon 2 of p16. We conclude that p15 and p16 are deleted and/or mutated in most primary NSCLCs. Two observations, however, support the involvement of at least one additional tumor suppressor gene on chromosome 9. These observations are: (a) the large size (> 100 kb) of most NSCLC p15/p16 deletions; and (b) the absence of exon 2 mutations in most retained NSCLC p15 and p16 alleles.
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Singer S, Corson JM, Demetri GD, Healey EA, Marcus K, Eberlein TJ. Prognostic factors predictive of survival for truncal and retroperitoneal soft-tissue sarcoma. Ann Surg 1995; 221:185-95. [PMID: 7857146 PMCID: PMC1234952 DOI: 10.1097/00000658-199502000-00009] [Citation(s) in RCA: 208] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
OBJECTIVE The authors identified prognostic factors relevant to clinical outcomes (especially survival) in truncal and retroperitoneal soft-tissue sarcoma. SUMMARY BACKGROUND DATA These results can be used to optimize surgical management and select patients most likely to benefit from novel therapeutic strategies in future trials. METHODS A retrospective analysis was performed of a prospectively compiled database of 183 consecutive patients with truncal and retroperitoneal sarcomas seen at the Brigham and Women's Hospital and the Dana Farber Cancer Institute between 1970 to 1994. RESULTS For truncal sarcoma, multivariate analysis showed that high-grade histology was associated with an eightfold increased risk of death compared with low-grade histology (p = 0.001). In addition to grade, gross positive margin of resection (p = 0.001), microscopic positive margin (p = 0.023), and tumors greater than 5 cm in size (p = 0.018) were important independent prognostic factors for survival. In this series, postoperative radiation therapy for truncal sarcoma was associated with a 2.4-fold decreased risk of death compared with truncal sarcoma patients receiving no adjuvant radiation therapy, having adjusted for the other prognostic factors (p = 0.030). In contrast, for retroperitoneal sarcoma, multivariate analysis showed that high-grade and intermediate-grade histology were associated with a five- to sixfold increased risk of death compared with low-grade histology (p = 0.009). In addition to grade, gross positive margin of resection (p = 0.001) and microscopic positive margin (p = 0.004) were important independent prognostic factors for survival in retroperitoneal sarcoma. Patients who received either preoperative or postoperative chemotherapy for retroperitoneal sarcoma had a 4.6-fold (p = 0.002) and 3-fold (p = 0.010) increased risk of death, respectively, compared with patients receiving no adjuvant chemotherapy, having adjusted for the other prognostic factors. CONCLUSIONS The histologic grade and the margin of resection are prognostic for survival in both truncal and retroperitoneal soft-tissue sarcoma. Tumor size was an independent prognostic factor for truncal sarcoma, but not for retroperitoneal sarcoma. Postoperative adjuvant radiation was beneficial to overall survival for truncal sarcoma. In this series of patients receiving a heterogeneous mixture of chemotherapeutic regimens-either as preoperative "neoadjuvant" therapy or as postoperative "adjuvant" therapy, there were no beneficial effects on survival compared with nonrandomized patients not receiving chemotherapy.
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Fletcher JA, Naeem R, Xiao S, Corson JM. Chromosome aberrations in desmoid tumors. Trisomy 8 may be a predictor of recurrence. CANCER GENETICS AND CYTOGENETICS 1995; 79:139-43. [PMID: 7889507 DOI: 10.1016/0165-4608(94)00134-w] [Citation(s) in RCA: 80] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Cytogenetic analyses of short-term cultures revealed clonal chromosome aberrations in 6 of 13 desmoid tumors. These aberrations included two consistent events, trisomy 8 (n = 4) and trisomy 20 (n = 3), which have not been reported previously in desmoid tumors. Because trisomy 8 was found in two recurrent desmoid tumors, we used fluorescent in situ hybridization (FISH) methodology to evaluate chromosome 8 in 25 paraffin-embedded and frozen desmoid specimens. The FISH studies demonstrated that both patients with cytogenetic trisomy 8 at the time of recurrence also had had trisomy 8 in primary tumors 4 years earlier. The proportion of trisomy 8 cells in these cases did not change substantially between original diagnosis and recurrence. The FISH studies also revealed trisomy 8 in one recurrent desmoid tumor which had been cytogenetically unremarkable and revealed trisomy 8 in one recurrent desmoid that had not been karyotyped. Four of six patients with trisomy 8 had been followed for more than 1 year, and the desmoid tumors in each of these 4 patients recurred. By contrast, recurrence was noted in only 2 of 17 patients whose desmoid tumors lacked trisomy 8. Our findings demonstrate that trisomy 8 and trisomy 20 are nonrandom aberrations in desmoid tumors. Trisomy 8 appears to be associated with an increased risk of recurrence.
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Vogelzang NJ, Weissman LB, Herndon JE, Antman KH, Cooper MR, Corson JM, Green MR. Trimetrexate in malignant mesothelioma: A Cancer and Leukemia Group B Phase II study. J Clin Oncol 1994; 12:1436-42. [PMID: 8021735 DOI: 10.1200/jco.1994.12.7.1436] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
PURPOSE Folic acid antagonists are reported to have activity against mesothelioma. The Cancer and Leukemia Group B (CALGB) undertook this phase II study of the new antifolate, trimetrexate (TMTX), to evaluate its response rate and toxicity in chemotherapy-naive patients with malignant mesothelioma. PATIENTS AND METHODS Fifty-two patients were accrued to this protocol. Because of concerns about TMTX toxicity in patients with malignant effusions and/or hypoalbuminemia, the first 17 patients were treated at a dose of 6 mg/m2 daily for 5 days every 21 days. Because minimal toxicity was observed, the subsequent 35 patients were treated at a dose of 10 mg/m2. RESULTS Two of 17 patients (12%) in the 6-mg/m2 treatment group had a partial response (PR) and four of 34 eligible patients (12%) in the 10-mg/m2 treatment group had a PR or regression (R) of assessable disease. No patient achieved a complete response (CR). Median survival durations were 5.0 and 8.9 months in the 6- and 10-mg/m2 treatment groups, respectively, while the 2-year survival rates were identical at 18%. At the 10-mg/m2 dose, toxicity was tolerable, with one toxic death from sepsis and a 12% rate of grade 4 thrombocytopenia and granulocytopenia. CONCLUSION In this large trial, TMTX showed minor activity in the treatment of malignant mesothelioma. Myelosuppression was mild and dose-related. Future studies of higher doses of TMTX should be considered.
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Singer S, Corson JM, Gonin R, Labow B, Eberlein TJ. Prognostic factors predictive of survival and local recurrence for extremity soft tissue sarcoma. Ann Surg 1994; 219:165-73. [PMID: 8129487 PMCID: PMC1243118 DOI: 10.1097/00000658-199402000-00008] [Citation(s) in RCA: 166] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE The authors sought to identify prognostic factors in the management of extremity soft tissue sarcoma. SUMMARY BACKGROUND DATA The surgical management of soft tissue sarcoma has evolved because of advances in therapy, resulting in increased limb preservation and quality of life. However, identifying a subset of patients most likely to benefit from adjuvant chemotherapy has been difficult to achieve. METHODS A retrospective analysis of a prospective data base of 182 patients with extremity sarcomas from 1970 to 1992 was performed. RESULTS A histologic diagnosis of Ewing's sarcoma, synovial sarcoma, and angiosarcoma was associated with a 13-fold increased risk of death compared with liposarcoma, fibrosarcoma, and malignant peripheral nerve sheath histologic types after having adjusted for the other prognostic factors (p < 0.001). In addition to histologic type, high-grade sarcomas (p = 0.018), sarcomas greater than 10 cm in size (p = 0.006), and age at diagnosis (p = 0.016) were found to be important prognostic factors for survival but not for local recurrence. For the first time to their knowledge, the authors showed that mean mitotic activity has prognostic value after having adjusted for other prognostic factors, such as grade (p = 0.005). The only prognostic factors predictive for local recurrence were whether the patient presented with locally recurrent disease (p = 0.0001) or had microscopically positive margins (p = 0.052). CONCLUSIONS The use of mitotic activity along with grade, size, histologic type, and age at diagnosis is prognostic for survival in extremity soft tissue sarcoma. The use of an objective pathologic feature, such as mean mitotic activity, is also useful in selecting patients for future systemic neoadjuvant or adjuvant trials and primary therapy.
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Karn CM, Socinski MA, Fletcher JA, Corson JM, Craighead JE. Cardiac synovial sarcoma with translocation (X;18) associated with asbestos exposure. Cancer 1994; 73:74-8. [PMID: 8275440 DOI: 10.1002/1097-0142(19940101)73:1<74::aid-cncr2820730114>3.0.co;2-i] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A primary cardiac spindle cell tumor with immunoreactivity for keratin proteins is reported. Cytogenetic analysis of the tumor demonstrated a translocation (X;18), an aberration almost exclusively reported in synovial sarcomas. Postmortem examination revealed amphibole asbestos within the lungs and diaphragmatic pleural plaques indicative of asbestos exposure. These findings raise questions about the possible causation of this tumor.
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Chahinian AP, Antman K, Goutsou M, Corson JM, Suzuki Y, Modeas C, Herndon JE, Aisner J, Ellison RR, Leone L. Randomized phase II trial of cisplatin with mitomycin or doxorubicin for malignant mesothelioma by the Cancer and Leukemia Group B. J Clin Oncol 1993; 11:1559-65. [PMID: 8336195 DOI: 10.1200/jco.1993.11.8.1559] [Citation(s) in RCA: 128] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
PURPOSE The Cancer and Leukemia Group B (CALGB) conducted a randomized phase II multicenter trial to evaluate the activity of two cisplatin-containing regimens (cisplatin and mitomycin [CM], or cisplatin and doxorubicin [CD]) in patients with malignant pleural or peritoneal mesothelioma (protocol CALGB 8435). PATIENTS AND METHODS Seventy-nine patients were entered between June 1984 and October 1986. Eligibility included a performance status of 0 to 2 by CALGB criteria, and no prior chemotherapy. Central pathology review was performed. Randomization was stratified according to the cell type (epithelial v mixed or sarcomatous) and the presence of measurable versus assessable disease. Of the 79 patients entered, 70 were included in this analysis (35 on CM and 35 on CD), including 48 with epithelial cell type and 22 with mixed or sarcomatous cell types. Sixty-six patients had pleural mesothelioma and four had peritoneal mesothelioma. There were 34 cases with measurable disease and 36 with assessable disease. RESULTS The overall response rate was 26% for CM (two complete responses [CRs], three partial responses [PRs], and four regressions) and 14% for CD (four PRs and one regression). Median time to treatment failure was 3.6 months for CM and 4.8 months for CD, and median survival duration from study entry was 7.7 and 8.8 months, respectively, with no significant differences between treatments. Good performance status (0 or 1) was associated with significantly longer survival duration (P = .013). Both regimens were well tolerated and there were no treatment-related deaths due to toxicity. CONCLUSION Moderate antitumor activity has been observed with both regimens. In this randomized phase II trial, the overall response rates, time to treatment failure, and overall survival appear to be similar for the two regimens tested.
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Gravallese EM, Weissman BN, Corson JM, Greene JM. Synovitis of the knee in a 42-year-old man. ARTHRITIS AND RHEUMATISM 1993; 36:860-70. [PMID: 8507229 DOI: 10.1002/art.1780360619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Sugarbaker DJ, Strauss GM, Lynch TJ, Richards W, Mentzer SJ, Lee TH, Corson JM, Antman KH. Node status has prognostic significance in the multimodality therapy of diffuse, malignant mesothelioma. J Clin Oncol 1993; 11:1172-8. [PMID: 8501504 DOI: 10.1200/jco.1993.11.6.1172] [Citation(s) in RCA: 189] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
PURPOSE We studied a multimodality approach using extrapleural pneumonectomy, chemotherapy, and radiotherapy in patients with malignant pleural mesothelioma. PATIENTS AND METHODS From 1980 to 1992, 52 selected patients, underwent treatment. Median age was 53 years (range, 33 to 69). Initial patient evaluation was performed by a multimodality team. Pathologic diagnosis was reviewed and confirmed before therapy. Patients with no medical contraindication and potentially resectable mesothelioma on computed tomography (CT) (magnetic resonance imaging [MRI] when it became available) received extrapleural pneumonectomy, cyclophosphamide, doxorubicin, and cisplatin (CAP) chemotherapy, and radiotherapy. RESULTS Perioperative morbidity and mortality rates were 17% and 5.8%, respectively. The overall median survival duration is 16 months (range, 1 month to 8 years). The 32 patients with epithelial histologic variant had 1-, 2-, and 3-year survival rates of 77%, 50%, and 42%, respectively. Patients with mixed and sarcomatous cell disease had 1- and 2-year survival rates of 45% and 7.5%; no patient lived longer than 25 months (P < .01). At resection, positive regional mediastinal lymph nodes were found in 13. Positive lymph nodes were associated with poorer survival than were negative nodes (P < .01). Patients with epithelial variant and negative mediastinal lymph nodes had a survival rate of 45% at 5 years. CONCLUSION Multimodality therapy including extrapleural pneumonectomy has acceptable morbidity and mortality for selected patients. Prolonged survival occurred in patients with epithelial histologic variant and negative mediastinal lymph nodes. These data provide a rationale for a revised staging system for malignant pleural mesothelioma; furthermore, they permit stratification of patients into groups likely to benefit from aggressive multimodality treatment.
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Mentzer SJ, Antman KH, Attinger C, Shemin R, Corson JM, Sugarbaker DJ. Selected benefits of thoracotomy and chemotherapy for sarcoma metastatic to the lung. J Surg Oncol 1993; 53:54-9. [PMID: 8479198 DOI: 10.1002/jso.2930530114] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
To determine the benefit of aggressive surgical therapy, we studied 77 consecutive patients presenting to our sarcoma registry with pulmonary metastases. Detailed follow-up was available on all patients; the median follow-up of the 13 long-term survivors was 72 months from the date of diagnosis of the primary tumor. Survival of these 77 patients with metastatic disease was independent of the size, location, and histology of the primary tumor. Once metastases developed, survival of patients with pulmonary metastases was not influenced by the extent of surgical resection of the primary tumor or by the use of radiation therapy. Pulmonary metastases were initially treated with thoracotomy and metastasectomy in 34 patients. The median survival after thoracotomy was 26 months. Seven patients were alive more than 4 years after their diagnosis. Pulmonary metastases were treated with chemotherapy alone in 43 patients. Although the survival was shorter (median survival 14 months) in patients treated with chemotherapy, an objective response to chemotherapy was obtained in 13 (30%) patients. Four of these patients were alive 4 years after their diagnosis. These data demonstrate that both thoracotomy and chemotherapy are associated with long-term survival of patients with sarcoma metastatic to the lung.
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Naeem R, Donovan K, Corson JM, Fletcher JA. Fluorescent in situ hybridization assessment of chromosome 7 copy number in uncultured lung and kidney cells. CANCER GENETICS AND CYTOGENETICS 1993; 66:100-2. [PMID: 8500094 DOI: 10.1016/0165-4608(93)90235-e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Trisomy 7 is common in cells cultured from nonneoplastic lung and kidney tissues, but the frequency of trisomy 7 in uncultured lung and kidney has not been determined. In this study, we used fluorescent in situ hybridization (FISH) to assess chromosome 7 copy number in uncultured interphase nuclei from lung and kidney specimens. All specimens had low level mosaicism for trisomy 7(1.5-5.25%), but control experiments indicated a potential wide margin of error in quantifying these events.
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Banks PM, Battifora H, Corson JM, LiVolsi V. Incorporation of immunostaining data in anatomic pathology reports. Am J Clin Pathol 1993; 99:7. [PMID: 7678482 DOI: 10.1093/ajcp/99.1.7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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