Acute promyelocytic leukemia (APL), distinguished by the presence of PML-RARA fusion transcript, is a medical emergency due to its high early death rate, which is preventable when diagnosed early. Current diagnostic methods are precise and reliable but are time-intensive, require sophisticated instruments and analytical expertise. This study has Redefined APL IDentification by CRISPR system (RAPID-CRISPR) to rapidly (<3hrs) detect PML-RARA.
View Article and Find Full Text PDFCirculating tumor plasma cells (CTPCs) provide a noninvasive alternative for measuring tumor burden in newly diagnosed multiple myeloma (NDMM). Moreover, measurable residual disease (MRD) assessment in peripheral blood (PBMRD) can provide an ideal alternative to bone marrow MRD, which is limited by its painful nature and technical challenges. However, the clinical significance of PBMRD in NDMM still remains uncertain.
View Article and Find Full Text PDFAnthracyclines, topoisomerase II enzyme poisons that cause DNA damage, are the mainstay of acute myeloid leukemia (AML) treatment. However, acquired resistance to anthracyclines leads to relapse, which currently lacks effective treatment and is the cause of poor survival in individuals with AML. Therefore, the identification of the mechanisms underlying anthracycline resistance remains an unmet clinical need.
View Article and Find Full Text PDFAcute myeloid leukemia (AML) is a type of blood cancer that is characterized by the rapid growth of abnormal myeloid cells. The goal of AML treatment is to eliminate the leukemic blasts, which is accomplished through intensive chemotherapy. Cytarabine is a key component of the standard induction chemotherapy regimen for AML.
View Article and Find Full Text PDFIntroduction: The emergence of resistance to the highly successful BCL2-directed therapy is a major unmet need in acute myeloid leukemia (AML), an aggressive malignancy with poor survival rates. Towards identifying therapeutic options for AML patients who progress on BCL2-directed therapy, we studied a clinical-stage CDK7 inhibitor XL102, which is being evaluated in solid tumors (NCT04726332).
Materials And Methods: To determine the anti-proliferative effects of XL102, we performed experiments including time-resolved fluorescence resonance energy transfer, target occupancy, cell cycle and apoptosis-based assays.
Transl Oncol
September 2023
Multiple myeloma (MM) is an incurable plasma cell neoplasm. Despite several effective frontline therapeutic regimens, including Bortezomib (BTZ), relapse is almost inevitable; therefore, better therapeutic modalities to improve the outcomes are needed. Cyclin-dependent kinases (CDKs) are an essential constituent of the cellular transcriptional machinery and tumors including MM are critically dependent on transcription to maintain their oncogenic state.
View Article and Find Full Text PDFBackground: Interferon and nucleos(t)ide analogues are current therapeutic treatments for chronic Hepatitis B virus (HBV) infection with the limitations of a functional cure. Chrysin (5, 7-dihydroxyflavone) is a natural flavonoid, known for its antiviral and hepatoprotective activities. However, its anti-HBV activity is unexplored.
View Article and Find Full Text PDFThe plight of antimicrobial resistance continues to limit the availability of antibiotic treatment effective in combating resistant bacterial infections. Despite efforts made to rectify this issue and minimise its effects on both patients and the wider community, progress in this area remains minimal. Here, we designed a peptide named KDEON WK-11, building on previous work establishing effective residues and structures active in distinguished antimicrobial peptides such as lactoferrin.
View Article and Find Full Text PDFBackground: Many novel therapies are being evaluated for the treatment of Multiple myeloma (MM). The cell-surface protein B-cell maturation antigen (BCMA, CD269) has recently emerged as a promising target for CAR-T cell and monoclonal-antibody therapies in MM. However, the knowledge of the BCMA expression-pattern in myeloma patients from the Indian subcontinent is still not available.
View Article and Find Full Text PDFIntroduction: Chikungunya is caused by an alpha virus transmitted to humans by an infected mosquito. Infection is generally considered to be self-limiting and non-critical. Chikungunya infection may be diagnosed by severe joint pain with fever, but it is difficult to diagnose because the symptoms of chikungunya are common to many pathogens, including dengue fever.
View Article and Find Full Text PDFPurpose: Pregnancy zone protein (PZP) is best known as protease inhibitor and its concentration in human blood plasma increases dramatically during pregnancy. Recent investigation revealed a role of PZP inactivating germ-line mutation in breast cancer predisposition, and therefore we designed a study to evaluate functional involvement of this protein in tumor pathogenesis.
Methods: PZP knockout cells were generated utilizing the CRISPR-Cas9 approach in MCF7 and T47D (breast cancer) cell lines, and colony formation, cell proliferation, and migration assays carried out.
The high expression of brain and acute leukemia, cytoplasmic (BAALC) and ETS-related gene (ERG) has been reported to influence the outcome in acute myeloid leukemia (AML), but due to limited prospective studies, their role as prognostic factors is unclear. At diagnosis, the prognostic value of BAALC and ERG expression with respect to other cytogenetic and molecular markers was analyzed in 149 AML patients. Patients were divided into quartiles which resulted in the formation of four groups (G1-G4) based on expression values of BAALC and ERG and clinical response defined across groups.
View Article and Find Full Text PDFTherapy-related acute leukemias (t-ALs) represent approximately 10-20% of all acute leukemias, are frequently resistant to chemotherapy, and are associated with guarded outcomes. The national comprehensive cancer network data suggest that t-AL cases are diagnosed at increasing rates in breast cancer patients treated with chemotherapeutic agents targeting topoisomerase II. Two cases of BRCA1-mutated ovarian and breast carcinoma who developed therapy-related APL and ALL, respectively, following topoisomerase II-directed therapy were characterized.
View Article and Find Full Text PDFAcute myeloid leukemia (AML) with mutation is a disease driving genetic alteration with good prognosis. Although it has been suggested that mutation induces chemosensitivity in leukemic cells, the underlying cause for the better survival of mutated patients is still not clear. Mutant AML has a unique microRNA and their target gene (mRNA) signature compared to wild-type .
View Article and Find Full Text PDFThe protective efficacy of methanolic bark extract of Acacia catechu Willd. (MEBA) against 1,2-dimethylhydrazine (DMH)-induced colon toxicity was investigated. Acacia catechu is considered one of the most potent medicines for various diseases in Ayurveda, a traditional system of Indian medicine.
View Article and Find Full Text PDFMediterr J Hematol Infect Dis
January 2018
Atypical breakpoints and variant APL cases involving alternative chromosomal aberrations are seen in a small subset of acute promyelocytic leukemia (APL) patients. Over seven different partner genes for RARA have been described. Although rare, these variants prove to be a diagnostic challenge and require a combination of advanced cytogenetic and molecular techniques for accurate characterization.
View Article and Find Full Text PDFLeukemia is majorly treated by topoisomerase inhibitors that induce DNA double strand breaks (DSB) resulting in cell death. Consequently, modulation of DSB repair pathway renders leukemic cells resistant to therapy. As we do not fully understand the regulation of DSB repair acquired by resistant cells, targeting these cells has been a challenge.
View Article and Find Full Text PDFBackground: Cisplatin (CP) is a potent chemotherapeutic agent commonly used for the treatment of various malignancies. It has varied undesirable effects such as nephrotoxicity, intestinal toxicity which limit its wide and extensive clinical usage. 18β-Glycyrrhetinic acid (GA) is a pentacyclic triterpenoid derivative, obtained from the herb liquorice having pharmacological properties such as anti-inflammatory, hepatoprotective and antioxidant.
View Article and Find Full Text PDFFanconi anemia (FA), a cancer predisposition syndrome exhibits hallmark feature of radial chromosome formation, and hypersensitivity to DNA crosslinking agents. A set of FA pathway proteins mainly FANCI, FANCD2 and BRCA2 are expressed to repair the covalent crosslink between the dsDNA. However, FA, BRCA pathways play an important role in DNA ICL repair as well as in homologous recombination repair, but the presumptive role of FA-BRCA proteins has not clearly explored particularly in context to function associated protein-protein interactions (PPIs).
View Article and Find Full Text PDF