Association of C3435T, C1236T and C4125A Polymorphisms of the MDR-1 Gene in Egyptian Children with Acute Lymphoblastic Leukaemia

Conclusion: From our preliminary data, the CT genotype of C3435T is associated with a poor ALL outcome while the CC genotype of C1236T is related with an increased incidence of relapse. Although our results provide assistance for oncologist choice of individual therapeutic strategy taking the patient genetic repertoire into consideration, further investigations with larger sample size should be conducted to validate our results. PMID: 30256048 [PubMed - in process]
Source: Asian Pacific Journal of Cancer Prevention - Category: Cancer & Oncology Tags: Asian Pac J Cancer Prev Source Type: research

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Authors: Reissier S, Cattoir V Abstract INTRODUCTION: Streptogramins (pristinamycin and quinupristin-dalfopristin) can be interesting options for the treatment of infections due to Gram-positive cocci, especially multidrug-resistant isolates. AREAS COVERED: This review provides an updated overview on structural and activity characteristics, mechanisms of action and resistance, pharmacokinetic/pharmacodynamic and clinical use of streptogramins. EXPERT OPINION: The streptogramin antibiotics act by inhibition of the bacterial protein synthesis. They are composed of two chemically distinct compounds, namely typ...
Source: Expert Review of Anti-Infective Therapy - Category: Infectious Diseases Tags: Expert Rev Anti Infect Ther Source Type: research
Publication date: 15 February 2021Source: Journal of Hazardous Materials, Volume 404, Part BAuthor(s): Yanhua Liu, Yang Li, Shanshan Dong, Lu Han, Ruixin Guo, Yourong Fu, Shenghu Zhang, Jianqiu Chen
Source: Journal of Hazardous Materials - Category: Environmental Health Source Type: research
Authors: Musio F Abstract INTRODUCTION: Anemia has and will continue to be a central theme in medicine particularly as clinicians are treating a burgeoning population of complex multi-organ system processes. As a result of multiple randomized controlled trials (RCTs), meta-analyses, and societal recommendations overly restrictive paradigms and under-administration of erythropoiesis stimulating agents (ESAs) have likely been followed by clinicians among all specialties. AREAS COVERED: A review of anemia in the context of chronic kidney disease, hematologic malignancies and cancer is presented with focus on the e...
Source: Expert Review of Hematology - Category: Hematology Tags: Expert Rev Hematol Source Type: research
Publication date: January 2021Source: Urology Case Reports, Volume 34Author(s): Nina Al-Saadi, Safa Al-Musawi, Yousuf Khan, Daben Dawam
Source: Urology Case Reports - Category: Urology & Nephrology Source Type: research
Abstract Acute lymphoblastic leukemia (ALL) is the most prevalent cancer among children, and multidrug efflux mediated by overexpression of ABC transporters is the major impediment to successful chemotherapy in this malignancy. The goal of this study is to identify the non-coding RNAs (ncRNAs) which may affect the expression levels of ABCA3; the previously identified prognostic biomarker for multidrug resistance (MDR) in childhood ALL (cALL). Bone marrow samples from 64 cALLs, including 46 de novo and 18 relapsed patients, in addition to 30 non-cancer controls were collected, and ncRNAs were nominated using in sil...
Source: Gene - Category: Genetics & Stem Cells Authors: Tags: Gene Source Type: research
We present the P-glycoprotein (P-gp) activity in 2 patients with different outcomes. Both patients had B-cell acute lymphoblastic leukemia; they were responding properly to the treatment, but one of them had an increment in the P-gp activity that correlates with an increment in the disease manifestation, the patient had to be hospitalized and developed sepsis and subsequently died. P-gp levels were correlated with disease progression. P-gp activity needs to be evaluated during treatment to assess and prevent disease relapse or the patient´s death.
Source: Journal of Pediatric Hematology Oncology - Category: Hematology Tags: Online Articles: Original Articles Source Type: research
Acute leukemia is the most common cancer in children and involves several factors that contribute to development of multidrug resistance and treatment failure. According to our recent studies, the BAALC gene is identified to have high mRNA expression levels in childhood acute lymphoblastic leukemia (ALL) and those with multidrug resistance. Several polymorphisms are associated with the expression of this gene. To date, there has been no study on the rs62527607 [GT] single nucleotide polymorphism (SNP) of BAALC gene and its link with childhood acute lymphoblastic and myeloid leukemia (AML).
Source: Cancer Genetics and Cytogenetics - Category: Genetics & Stem Cells Authors: Tags: Original Article Source Type: research
Acute leukemia is the most common cancer in children and involves several factors that contribute to the development of multidrug resistance and treatment failure. According to our recent studies, the BAALC gene is identified to have high mRNA expression levels in childhood acute lymphoblastic leukemia (ALL) and those with multidrug resistance. Several polymorphisms are associated with the expression of this gene. To date, there has been no study on the rs62527607 [GT] single nucleotide polymorphism (SNP) of BAALC gene and its link with childhood acute lymphoblastic and myeloid leukemia (AML).
Source: Cancer Genetics and Cytogenetics - Category: Genetics & Stem Cells Authors: Tags: Original Article Source Type: research
Scenario A 5-year-old girl with acute lymphoblastic leukaemia is receiving empirical intravenous antibiotic treatment for febrile neutropenia. On day 2 of her admission you are notified from the microbiology laboratory that she has a blood culture positive with a Gram-negative bacillus. You wonder if she has risk factors for antibiotic resistant Gram-negative bacteraemia and if her empirical antibiotic therapy should be adjusted. Structured clinical question In a child with cancer (patient) what risk factors (‘intervention’) affect probability of growth of an antibiotic resistant Gram-negative organism in blood...
Source: Archives of Disease in Childhood - Category: Pediatrics Authors: Tags: ADC Archimedes, Oncology, Epidemiologic studies, Drugs: infectious diseases, Child health, Screening (epidemiology), Screening (public health) Source Type: research
Methotrexate (MTX) is one of the key components of current ALL treatment protocols. This antifolate inhibits de novo nucleotide biosynthesis, hindering DNA replication, hence leading to cell death. However, despite the overall good cure rates in ALL, drug resistance continues to hamper the efficacy of MTX, contributing to relapse of leukemia. Multiple molecular mechanisms underlying drug resistance have been characterized, however, their clinical relevance often remains unclear. We recently identified impaired FPGS splicing, in particular intron 8 partial retention (intron 8 PR), as a possible contributor to decreased FPGS...
Source: Cancer Research - Category: Cancer & Oncology Authors: Tags: Experimental and Molecular Therapeutics Source Type: research
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