Targeted Therapies for Brain Metastases.

Targeted Therapies for Brain Metastases. Prog Neurol Surg. 2019 May 16;34:125-137 Authors: Niranjan A, Lunsford LD, Ahluwalia MS Abstract The most common primary cancers that metastasize to the brain are lung cancer, breast cancer, and melanoma. The established management approaches for brain metastasis include stereotactic radiosurgery, fractionated radiation therapy, and surgical resection. In the past the role of medical therapies in brain metastases was limited. In the last decade, our understanding of molecular drivers of brain metastases and CNS penetration of drugs across the blood-brain barrier has improved. The molecular targeted tyrosine kinase inhibitors have shown effectiveness in brain metastases with activating mutations from non-small cell lung cancer, breast cancer, and melanoma. More recently, immunotherapies have also shown efficacy in the management of these patients. These agents can be effective for both intracranial as well as extracranial disease and are being actively employed in this patient population. PMID: 31096209 [PubMed - as supplied by publisher]
Source: Progress in Neurological Surgery - Category: Neurosurgery Tags: Prog Neurol Surg Source Type: research

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Michal Yalon1†, Amos Toren1,2†, Dina Jabarin2, Edna Fadida3, Shlomi Constantini3 and Ruty Mehrian-Shai1* 1Pediatric Hemato-Oncology, Edmond and Lilly Safra Children's Hospital and Cancer Research Center, Sheba Medical Center, Ramat Gan, Israel 2The Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel 3Department of Pediatric Neurosurgery, Dana Children's Hospital, Tel-Aviv-Sourasky Medical Center, Tel Aviv, Israel Pediatric brain tumors are the most common solid tumor type and the leading cause of cancer-related death in children. The immune system plays an important r...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Conclusions This review describes how leukocyte-heparanase can be a double-edged sword in tumor progression; it can enhance tumor immune surveillance and tumor cell clearance, but also promote tumor survival and growth. We also discuss the potential of using heparanase in leukocyte therapies against tumors, and the effects of heparanase inhibitors on tumor progression and immunity. We are just beginning to understand the influence of heparanase on a pro/anti-tumor immune response, and there are still many questions to answer. How do the pro/anti-tumorigenic effects of heparanase differ across different cancer types? Does...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Conclusions and Perspectives In this review, we have discussed important milestones from the early description of “Serum-sickness” as being due to antibodies directed against Neu5Gc epitopes all the way to the present-day therapeutic implications of these antibodies in cancer therapy. Some of these milestones have been represented in a concise timeline (Figure 6). While the “Xenosialitis” hypothesis is well-supported in the human-like mouse models, it has yet to be conclusively proven in humans. It remains to be seen if “Xenosialitis” plays a role in other uniquely-human diseases. FI...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Markus Hartl* and Rainer Schneider Center of Molecular Biosciences (CMBI), Institute of Biochemistry, University of Innsbruck, Innsbruck, Austria The neuronal proteins GAP43 (neuromodulin), MARCKS, and BASP1 are highly expressed in the growth cones of nerve cells where they are involved in signal transmission and cytoskeleton organization. Although their primary structures are unrelated, these signaling proteins share several structural properties like fatty acid modification, and the presence of cationic effector domains. GAP43, MARCKS, and BASP1 bind to cell membrane phospholipids, a process reversibly regulate...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
CONCLUSIONSThis expanded and updated analysis confirms that single-fraction preoperative SRS confers excellent cavity local control with very low risk of RN or LMD. Preoperative SRS has several potential advantages compared to postoperative SRS, including reduced risk of RN due to smaller irradiated volume without need for cavity margin expansion and reduced risk of LMD due to sterilization of tumor cells prior to spillage at the time of surgery. Subtotal resection, though infrequent, is associated with significantly worse cavity LR and OS. Based on these results, a randomized trial of preoperative versus postoperative SRS...
Source: Journal of Neurosurgery - Category: Neurosurgery Tags: J Neurosurg Source Type: research
Brain metastases (BM) are the most common intracranial neoplastic disease in adults, with an incidence of 9 –17% among all brain tumors (Nayak et al., 2012). They are usually caused by lung cancer (either non-small cell (NSCLC) and small cell (SCLC) histologies), breast cancer, melanoma and renal cell carcinoma, with a raising incidence related to the improvements in diagnostic and treatment approaches (Berghoff et al., 2014). However, prognosis remains poor, with a median overall survival (OS) ranging from 3 to 27 months (Brastianos et al., 2013), rendering BM still an unmet medical need.
Source: Critical Reviews in Oncology Hematology - Category: Cancer & Oncology Authors: Source Type: research
Brain metastases (BM) are the most common intracranial neoplastic disease in adults, with an incidence of 9-17% among all brain tumors (Nayak et al., 2012). They are usually caused by lung cancer (either non-small cell (NSCLC) and small cell (SCLC) histologies), breast cancer, melanoma and renal cell carcinoma, with a raising incidence related to the improvements in diagnostic and treatment approaches (Berghoff et al., 2014). However, prognosis remains poor, with a median overall survival (OS) ranging from 3 to 27 months (Brastianos et al., 2013), rendering BM still an unmet medical need.
Source: Critical Reviews in Oncology Hematology - Category: Cancer & Oncology Authors: Source Type: research
Authors: Kann BH, Park HS, Johnson SB, Chiang VL, Yu JB Abstract Background: Management of brain metastases typically includes radiotherapy (RT) with conventional fractionation and/or stereotactic radiosurgery (SRS). However, optimal indications and practice patterns for SRS remain unclear. We sought to evaluate national practice patterns for patients with metastatic disease receiving brain RT. Methods: We queried the National Cancer Data Base (NCDB) for patients diagnosed with metastatic non-small cell lung cancer, breast cancer, colorectal cancer, or melanoma from 2004 to 2014 who received upfront brain RT. Patie...
Source: Journal of the National Comprehensive Cancer Network : JNCCN - Category: Cancer & Oncology Tags: J Natl Compr Canc Netw Source Type: research
AbstractThere is limited available literature examining factors that predispose patients to the development of LMC after stereotactic radiosurgery (SRS) for brain metastases. We sought to evaluate risk factors that may predispose patients to LMC after SRS treatment in this case –control study of patients with brain metastases who underwent single-fraction SRS between 2011 and 2016. Demographic and clinical information were collected retrospectively for 19 LMC cases and 30 controls out of 413 screened patients with brain metastases. Risk factors of interest were evaluated by univariate and multivariate logistic regres...
Source: Journal of Neuro-Oncology - Category: Cancer & Oncology Source Type: research
From portable genome sequencers until genetic tests revealing distant relations with Thomas Jefferson, genomics represents a fascinatingly innovative area of healthcare. As the price of genome sequencing has been in free fall for years, the start-up scene is bursting from transformative power. Let’s look at some of the most amazing ventures in genomics! The amazing journey of genome sequencing Genome sequencing has been on an amazing scientific as well as economic journey for the last three decades. The Human Genome Project began in 1990 with the aim of mapping the whole structure of the human genome and sequencing ...
Source: The Medical Futurist - Category: Information Technology Authors: Tags: Genomics Personalized Medicine AI artificial intelligence bioinformatics cancer DNA dna testing DTC gc3 genetic disorders genetics genome sequencing personal genomics precision medicine Source Type: blogs
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