Osteosarcoma profiling reveals why immunotherapy remains ineffective

(University of Texas M. D. Anderson Cancer Center) Comprehensive profiling of tumor samples taken from patients with osteosarcoma shows that multiple factors contribute to the traditionally poor responses observed from treatment with immune checkpoint inhibitors, according to new research from The University of Texas MD Anderson Cancer Center.
Source: EurekAlert! - Cancer - Category: Cancer & Oncology Source Type: news

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ConclusionTLR4 activation by LPS increased CD8+ cells infiltrating into lung metastases and suppressed OS progression in the mouse model. TLR4 activation may suppress the progression of OS via stimulating CD8+ cells and can be expected as a novel treatment for OS.
Source: Cancer Immunology, Immunotherapy - Category: Cancer & Oncology Source Type: research
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Source: Journal of Bone and Mineral Research - Category: Orthopaedics Authors: Tags: Perspective Source Type: research
Advanced, recurrent or metastasized osteosarcomas remain challenging to cure or even alleviate. Therefore, developing novel therapeutic strategies is urgently needed. Cancer immunotherapy has witnessed great improvement in recent years, including adoptive cellular therapy, vaccination and checkpoint inhibitors, which make it a potential strategy to treat osteosarcoma. The innate immunocyte, as the first line of defense in immune system and the bridge to adaptive immune response, is one of the vital effector cell subpopulations in cancer immunotherapy. Innate immunotherapy has achieved potent antitumor activity in treating ...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
By BISHAL GYAWALI, MD Keynote speech on the JAVELIN not going far enough to improve survival The treatment landscape for metastatic renal-cell carcinoma has changed dramatically with the introduction of immunotherapies. Unfortunately though, we are promoting combinations over single agents without having much idea of added benefit of each drug. This is an important issue because when we combine two drugs, the only thing we are certain of are the added toxicities. PD-1 inhibitor nivolumab had improved OS when given in second line, however nivolumab was tested in combination with ipilimumab (not as a nivolumab monother...
Source: The Health Care Blog - Category: Consumer Health News Authors: Tags: Medical Practice Physicians Bishal Gyawali Clinical Trials Oncology PD-1 inhibitor Source Type: blogs
Conclusion MTDH is pro-oncogenic factor playing multifaceted and diverse roles in cancer progression. Its association and central role in regulating signaling pathways such a MAPK, wnt/β-catenin, PI3K/AkT, NF-κβ pathways in various cancers shows that it plays a vital role in metastasis. MTDH contribution to chemo and radiotherapy resistance provides a new direction for the development of anticancer therapeutics. Multiple mechanisms converge to promote expression of MTDH in cancers. Further studies are therefore warranted to determine whether the elevated MTDH expression has prognostic value for development...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Conclusions Several model systems are now available to characterize the MSC-tumour interplay in the TME. These offer early promise in establishing robust preclinical platforms for the identification of crucial molecular pathways and for the assessment of clinical efficacy of novel drugs to inhibit cancer development and progression. However, selection of the right model for a given study should be shaped on the purpose, and should also consider fixed biological, biochemical, and biophysical parameters according to the specific tumour type. Finally, in order to get reliable and useful results to be translated to the clinic...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
This study aimed to investigate whether combining anti-PD-L1 Atezolizumab with BEV may have a synergistic effect and enhance the efficacy of both treatments in cisplatin resistant epithelial ovarian cancer (CREOC). We retrospectively analyzed 124 epithelial ovarian cancer (EOC) patients from Gynecologic Oncology Department of Tianjin Cancer Hospital between January 2013 and June 2018, who all were diagnosed with cisplatin resistance due to progressing
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
In conclusion, our WGCNA analysis identified candidate prognostic biomarkers for further basic and clinical researches. Introduction Breast cancer is a frequently diagnosed malignancy and the leading cause of cancer death among females around the world, accounting for 24% of cancer diagnoses and 15% of cancer deaths in females. According to Global Cancer Statistics 2018, there will be nearly 2.1 million new cases diagnosed globally, with ~62 thousand deaths. The incident rates of breast cancer increased in most developing countries during last decades, resulting from a combination of social and economic factors, incl...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
In conclusion, B7-H3 could be a target of bone cancers.
Source: Pathology Research and Practice - Category: Pathology Source Type: research
In conclusion, osmotic burst of inflated complement-damaged cells may occur, but these bursts are most likely a consequence of metabolic collapse of the cell rather than the cause of cell death. The Complement Cell Death Mediator: A Concerted Action of Toxic Moieties Membrane pores caused by complement were first visualized by electron microscopy on red blood cell membranes as large ring structures (22). Similar lesions were viewed on E. coli cell walls (23). Over the years, ample information on the fine ultrastructure of the MAC that can activate cell death has been gathered (24) and has been recently further examined (...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
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