How DNA damage turns immune cells against cancer

(University of Pennsylvania School of Medicine) The delayed arrival of immune cells after cancer therapy is well documented and critical for responses to chemotherapy and radiation, yet the events underlying their induction remain poorly understood. Now, Penn researchers have discovered how DNA damage is a clarion call for the immune system.
Source: EurekAlert! - Cancer - Category: Cancer & Oncology Source Type: news

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fellner Antibody-drug conjugates (ADCs) combine the tumor selectivity of antibodies with the potency of cytotoxic small molecules thereby constituting antibody-mediated chemotherapy. As this inherently limits the adverse effects of the chemotherapeutic, such approaches are heavily pursued by pharma and biotech companies and have resulted in four FDA (Food and Drug Administration)-approved ADCs. However, as with other cancer therapies, durable responses are limited by the fact that under cell stress exerted by these drugs, tumors can acquire mechanisms of escape. Resistance can develop against the antibody component of ...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Review Source Type: research
Abstract: Genomic analyses in oncologic care allow for the development of more precise clinical laboratory tests that will be critical for personalized pharmacotherapy. Traditional biopsy-based approaches are limited by the availability of sequential tissue specimens to detect resistance. Blood-based genomic profiling (“liquid biopsy”) is useful for longitudinal monitoring of tumor genomes and can complement biopsies. Tumor-associated mutations can be identified in cell-free tumor DNA (ctDNA) from patient blood samples and used for monitoring disease activity. The US Food and Drug Administration approved a li...
Source: Therapeutic Drug Monitoring - Category: Drugs & Pharmacology Tags: Review Articles: Focus on Pharmacodynamic Drug Monitoring Source Type: research
Authors: Buck E, Sprick M, Gaida MM, Grüllich C, Weber TF, Herpel E, Bruckner T, Koschny R Abstract Recently, a tumor-autonomous cytochrome P450 (CYP)-3A5-mediated resistance to cancer therapy has been demonstrated in pancreatic ductal adenocarcinoma. Expression of CYP3A5, which is involved in the degradation of irinotecan, has also been reported in colorectal cancer (CRC). The aim of the present study was to analyze CYP3A5 expression in the normal colon, colon adenoma, CRC and normal tissues, as well as to examine whether CYP3A5 expression in CRC has an impact on tumor response to irinotecan treatment. Immuno...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
ConclusionThe combined regimen of the proteasome inhibitor delanzomib with Dox chemotherapy may become an effective strategy for breast cancer therapy.
Source: Thoracic Cancer - Category: Cancer & Oncology Authors: Tags: ORIGINAL ARTICLE Source Type: research
Authors: Li Y, Zhang X, Yang X, Liu J, Li L, Ma W, Chen M Abstract Liver cancer is a major healthcare problem and one of the leading causes of cancer-associated mortality in the world. To date, chemotherapy remains a common method for treating cancer and cisplatin is one of the most widely used chemotherapeutics. However, owing to drug resistance and side effects, it is imperative to identify a novel approach to improve the anticancer effect of cisplatin. Auxiliary chemotherapy drugs with minor toxicity to normal cells may represent a novel strategy for cancer therapy. Previous studies have indicated that ginkgol C...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Conclusion: Nail changes, skin changes, hair changes and mucosal changes occurred frequently as a significant side effect of chemotherapy, which a physician should be aware of, while selecting a chemotherapeutic drug.
Source: Indian Journal of Dermatology - Category: Dermatology Authors: Source Type: research
Opinion statementBisphosphonates are utilized routinely in breast cancer. In metastatic disease with bone involvement, bisphosphonates prevent or delay skeletal-related events and can improve pain control. Different agents have shown benefit compared with placebo or no treatment. While in unselected patients, comparison between zoledronic acid and pamidronate did not show a significant difference, exploratory analyses showed that in patients with osteolytic lesions or hypercalcemia, zoledronic acid is superior to pamidronate. De-escalating treatment with zoledronic acid from every 4 to every 12  weeks has been shown t...
Source: Current Treatment Options in Oncology - Category: Cancer & Oncology Source Type: research
Publication date: Available online 12 March 2019Source: Biosensors and BioelectronicsAuthor(s): Nandini Dhiman, Peter Kingshott, Huseyin Sumer, Chandra S. Sharma, Subha Narayan RathAbstractThere is an increasing need for advanced and inexpensive preclinical models to accelerate the development of anticancer drugs. While costly animal models fail to predict human clinical outcomes, in vitro models such as microfluidic chips (‘tumor-on-chip’) are showing tremendous promise at predicting and providing meaningful preclinical drug screening outcomes. Research on ‘tumor-on-chips’ has grown enormously worl...
Source: Biosensors and Bioelectronics - Category: Biotechnology Source Type: research
(University of Basel) Scientists from the University of Basel and the University Hospital of Basel have deciphered the molecular mechanisms linking breast cancer metastasis with increased stress hormones. In addition, they found that synthetic derivatives of stress hormones, which are frequently used as anti-inflammatory in cancer therapy, decrease the efficacy of chemotherapy. These results come from patient-derived models of breast cancer in mice and may have implications for the treatment of patients with breast cancer, as reported in Nature.
Source: EurekAlert! - Biology - Category: Biology Source Type: news
In this study, a D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) and polylysine-deoxycholic acid copolymer (PLL-DA) co-modified cationic liposome coating with hyaluronic acid (HA) was constructed for co-delivery of paclitaxel (PTX) and chemosensitizing agent, sorafenib (SOR) to treat the MDR cancer. The multifunctional liposome (HA-TPD-CL-PTX/SOR) presented good stability against rat plasma and was capable of reversing surface zeta potential under acidic conditions in the presence of HAase. Additionally, experimental result confirmed that the PLL-DA copolymer would facilitate the endo-lysosomal escape of the...
Source: Drug Delivery - Category: Drugs & Pharmacology Tags: Drug Deliv Source Type: research
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