In vivo imaging xenograft models for the evaluation of anti ‐brain tumor efficacy of targeted drugs

We present an in vivo imaging model for brain tumors using human cancer cell lines, including the EGFR‐L858R/T790M‐positive H1975 lung adenocarcinoma cells, the NUGC4 hepatocyte growth factor (HGF)‐dependent gastric cancer cells, and the KM12SM colorectal cancer cells containing the TPM3‐NTRK1 gene fusion. We investigated the efficacy of targeted drugs by comparison with their effect in extracranial models, and found that the same multikinase inhibitory drug can display different efficacies in brain tumor models containing different drivers. Therefore, our in vivo imaging model for brain tumors may prove useful for preclinical drug screening against brain metastases.
Source: Cancer Medicine - Category: Cancer & Oncology Authors: Tags: Original Research Source Type: research

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New England Journal of Medicine, Ahead of Print.
Source: New England Journal of Medicine - Category: Internal Medicine Authors: Source Type: research
New England Journal of Medicine, Ahead of Print.
Source: New England Journal of Medicine - Category: Internal Medicine Authors: Source Type: research
New England Journal of Medicine, Ahead of Print.
Source: New England Journal of Medicine - Category: Internal Medicine Authors: Source Type: research
Publication date: Available online 11 December 2019Source: The Lancet Global HealthAuthor(s): Adam Wagstaff, Sven NeelsenSummaryBackgroundThe goal of universal health coverage (UHC) requires that everyone receive needed health services, and that families who get needed services do not suffer undue financial hardship. Tracking progress towards UHC requires measurement of both these dimensions, and a way of trading them off against one another.MethodsWe measured service coverage by a weighted geometric average of four prevention indicators (antenatal care, full immunisation, and screening for breast and cervical cancers) and...
Source: The Lancet Global Health - Category: International Medicine & Public Health Source Type: research
os AC Abstract PURPOSE: To examine the effects of Arrabidaa chica (Bignoniacea) extract, a native plant of the Amazon known as crajiru, on a 7,12-dimethyl-1,2-benzanthracene (DMBA)-induced breast cancer model in Wistar rats. METHODS: We compared the response of breast cancer to the oral administration of A. chica extract (ACE) for 16 weeks, associated or not with vincristine. Groups: normal control; DMBA (50mg/kg v.o,) without treatment; DMBA+ACE (300 mg/kg); DMBA+vincristine. 500μg/kg injected i.p; DMBA+ACE+Vincristine 250μg/kg i.p. Imaging by microPET and fluorescence, biochemistry, oxidative stress, ...
Source: Acta Cirurgica Brasileira - Category: Surgery Authors: Tags: Acta Cir Bras Source Type: research
Triple-negative breast cancer is difficult to treat. A new study indicates that a common chemotherapy drug improves overall survival in this tumor type -- big news in cancer treatment.Medscape Medical News
Source: Medscape General Surgery Headlines - Category: Surgery Tags: Hematology-Oncology News Source Type: news
al-Filho DC Abstract Carbohydrate antigen 125 (CA125) has long been used as an ovarian cancer biomarker. However, because it is not specific for ovarian cells, CA125 could also be used to monitor congestion and inflammation in heart disease. Acute heart failure (HF) is used to identify patients with a worse prognosis in ST-segment elevation myocardial infarction (STEMI). We aimed to determine the association of CA125 with acute HF in STEMI and to compare CA125 with N-terminal pro brain natriuretic peptide (NTproBNP) with a cross-sectional study. At admission, patients were examined to define Killip class and then ...
Source: Braz J Med Biol Res - Category: Research Authors: Tags: Braz J Med Biol Res Source Type: research
Abstract Polydatin (PD), a monocrystalline polyphenolic drug mainly found in the roots of Polygonum cuspidatum, has various pharmacological activities. Long non-coding RNAs (lncRNA) DiGeorge syndrome critical region gene 5 (DGCR5) was found to participate in the suppression of multiple cancers. Here, we proposed to study the effect of PD on myocardial infarction (MI) by inducing DGCR5. CCK-8 assay was performed to detect the viability of H9c2 cells. Flow cytometry was utilized to test apoptosis of H9c2 cells. These results determined the optimal concentration and effect time of hypoxia as well as PD. Si-DGCR5 was ...
Source: Braz J Med Biol Res - Category: Research Authors: Tags: Braz J Med Biol Res Source Type: research
This study contributes with the discussion about the development of the molecular profiling of prostate cancer. The further development of similar studies could help in stratifying specific risk groups, leading to a more personalized therapeutic decision for prostate cancer treatment. PMID: 31826177 [PubMed - in process]
Source: Braz J Med Biol Res - Category: Research Authors: Tags: Braz J Med Biol Res Source Type: research
Publication date: Available online 21 November 2019Source: Best Practice &Research Clinical Obstetrics &GynaecologyAuthor(s): Mangesh A. Thorat, Rajeshkumar BalasubramanianAbstractWomen at high risk of developing breast cancer are a heterogeneous group of women including those with and without high-risk germline mutation/s. Prevention in these women requires a personalised and multidisciplinary approach. Preventive therapy with selective oestrogen receptor modulators (SERMs) like tamoxifen and aromatase inhibitors (AIs) substantially reduces breast cancer risk well beyond the active treatment period. The importance...
Source: Best Practice and Research Clinical Obstetrics and Gynaecology - Category: OBGYN Source Type: research
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