The immune landscape of chondrosarcoma - potential for therapeutic targeting of CSFR1+ macrophages

Publication date: February 2020Source: Journal of Bone Oncology, Volume 20Author(s): Iseulys Richert, Anne Gomez-Brouchet, Corinne Bouvier, Gonzague Du Bouexic De Pinieux, Marie Karanian, Jean-Yves Blay, Aurélie DutourAbstractSurvival rate for Chondrosarcoma (CHS) is at a standstill, more effective treatments are urgently needed. Consequently, a better understanding of CHS biology and its immune environment is crucial to identify new prognostic factors and therapeutic targets.Here, we exhaustively describe the immune landscape of conventional and dedifferentiated CHS. Using IHC and molecular analyses (RT-qPCR), we mapped the expression of immune cell markers (CD3, CD8, CD68, CD163) and immune checkpoints (ICPs) from a cohort of 27 conventional and 49 dedifferentiated CHS. The impact of the density of tumor-infiltrating lymphocytes (TILs), tumor-associated macrophages (TAMs) and immune checkpoints (ICPs) on clinical outcome were analyzed.We reveal that TAMs are the main immune population in CHS. Focusing on dedifferentiated CHS, we found that immune infiltrate composition is correlated with patient outcome, a high CD68+/CD8+ ratio being an independent poor prognostic factor (p
Source: Journal of Bone Oncology - Category: Cancer & Oncology Source Type: research

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This article discusses the most common tumor and tumor-like lesions arising at the shoulder. Osseous tumors of the shoulder rank second in incidence to those at the knee joint and include benign osteochondromas and myeloma or primary malignant lesions, such as osteosarcoma or chondrosarcomas. Soft tissue tumors are overwhelmingly benign, with lipomas predominating, although malignant lesions, such as liposarcomas, can occur. Numerous tumor-like lesions may arise from the joints or bursae, due to either underlying arthropathy and synovitis (eg, rheumatoid arthritis and amyloid) or related to conditions, including tenosynovi...
Source: Magnetic Resonance Imaging Clinics of North America - Category: Radiology Authors: Source Type: research
Abstract Von Hippel-Lindau (VHL) disease is an autosomal dominant inherited tumor syndrome. Clear cell chondrosarcoma (CCCS) is a rare variant of chondrosarcoma. Here, we report a case of CCCS in the talus occurring in a patient with VHL disease. A 32-year-old man presented with ankle pain for 2 years. MRI revealed a 4.2 cm mass in the talus, and needle biopsy was performed. The patient underwent curettage but the final diagnosis was CCCS. Adjuvant radiation therapy was performed without additional talectomy and the patient was alive without recurrence for a follow-up period of 2 years. To our knowledge, this is t...
Source: International Journal of Clinical and Experimental Pathology - Category: Pathology Authors: Tags: Int J Clin Exp Pathol Source Type: research
Conclusion Various skull base tumors involving MCF with extension to adjacent sites can be successfully resected using the TZ-MCF approach in a multidisciplinary fashion. This approach yields optimal exposure and permits excellent tumor control with acceptable CN and neurological morbidity. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text
Source: Journal of Neurological Surgery Part B: Skull Base - Category: Neurosurgery Authors: Tags: Original Article Source Type: research
This study aimed to perform a time ‐lapse analysis of tumor response in patients with STS treated with trabectedin from 2 phase II clinical trials.We examined 66 patients with translocation ‐related sarcoma registered in 2 Japanese phase II clinical trials. All patients previously received standard therapy before the administration of trabectedin at 1.2 mg/m2 every 3  weeks. Imaging evaluation was performed according to the study protocol. The sum of the maximum diameters of the target lesions was calculated and analyzed over time.Among the 66 patients, 9 (13.6%) showed partial response (PR) to trabectedin. H...
Source: Cancer Medicine - Category: Cancer & Oncology Authors: Tags: ORIGINAL RESEARCH Source Type: research
Primary chondrosarcomas of the nasal septum are rare, with a variety of clinical features that evade detection and treatment. While endoscopic surgery has become increasingly accessible, open approaches may be...
Source: Journal of Otolaryngology - Head and Neck Surgery - Category: ENT & OMF Authors: Tags: Case report Source Type: research
ConclusionsThe emerging use of CIRT to treat skull base chordomas and chondrosarcomas appear promising with regard to tumor control, overall survival, and risk profile of early and late toxicity. The current literature suffers from the fact only a few centers in the world currently employ this technology.
Source: Journal of Neuro-Oncology - Category: Cancer & Oncology Source Type: research
Publication date: Available online 16 March 2020Source: Journal of Bone OncologyAuthor(s): Iseulys Richert, Anne Gomez-Brouchet, Corinne Bouvier, Gonzague Du Bouexic De Pinieux, arie KaranianM, Jean-Yves Blay, Aurélie Dutour
Source: Journal of Bone Oncology - Category: Cancer & Oncology Source Type: research
Conclusion and significance: The diagnostic process is challenging and in some cases of extremely long duration without effect on mortality. The symptom duration and time to diagnosis in relation to mortality and risk of recurrence has not previously been described. Early biopsy, better imaging and advanced pathological techniques can hopefully speed up the diagnostic process and reduce morbidity and mortality. PMID: 32186247 [PubMed - as supplied by publisher]
Source: Acta Oto-Laryngologica - Category: ENT & OMF Authors: Tags: Acta Otolaryngol Source Type: research
We report two cases of tracheal chondrosarcoma describing the role of surgical and conservative treatment. Endoscopic treatment with rigid bronchoscopy was performed in both patients to restore airway patency and obtain histological specimens for diagnosis. One of the patients subsequently underwent successful tracheal resection and reconstruction. The other patient, who had a contraindication to surgical treatment due to associated diseases underwent iterative endoscopic LASER treatment and is alive three years after the first diagnosis. Surgical treatment remains the treatment of choice of tracheal chondrosarcoma. When s...
Source: Monaldi Archives for Chest Disease - Category: Respiratory Medicine Tags: Monaldi Arch Chest Dis Source Type: research
Condition:   Mesenchymal Chondrosarcoma Intervention:   Drug: Trabectedin Sponsors:   Italian Sarcoma Group;   PharmaMar Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
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