Clinical Applications of Chromosomal Microarray Testing in Myeloid Malignancies

AbstractPurpose of ReviewKnowledge of both somatic mutations and copy number aberrations are important for the understanding of cancer pathogenesis and management of myeloid neoplasms. The currently available standard of care technologies for copy number assessment such as conventional karyotype and FISH are either limited by low resolution or restriction to targeted assessment.Recent FindingsChromosomal microarray (CMA) is effective in characterization of chromosomal and gene aberrations of diagnostic, prognostic, and therapeutic significance at a higher resolution than conventional karyotyping. These results are complementary to NGS mutation studies. Copy-neutral loss of heterozygosity (CN-LOH), which is prognostic in AML, is currently only identified by CMA. Yet, despite the widespread availability, CMA testing is not routinely performed in diagnostic laboratories due to lack of knowledge on best-testing practices for clinical work-up of myeloid neoplasms. In this review, we provide an overview of the clinical significance of CMA in acute myeloid leukemia (AML), myelodysplastic syndromes (MDS), and myelodysplastic/myeloproliferative neoplasms (MDS/MPN). We will also elaborate the specific clinical scenarios where CMA can provide additional information essential for management and could potentially alter treatment.SummaryChromosomal microarray (CMA) is an effective technology for characterizing chromosomal copy number changes and copy-neutral loss of heterozygosity of diagn...
Source: Current Hematologic Malignancy Reports - Category: Hematology Source Type: research

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Conclusions: NGAL normalized counts was predicted by a multiple regression model, while they showed similar intergroup patterns to STAT3, IL5, and TLR4 normalized counts.PMID:34400898 | PMC:PMC8364451 | DOI:10.7150/ijms.62425
Source: International Journal of Medical Sciences - Category: Biomedical Science Authors: Source Type: research
CONCLUSION: NGAL was related to neutrophil count and VEGF. NGAL and VEGF showed similar intergroup patterns, reflecting that NGAL was associated with VEGF. PMID: 32304694 [PubMed - as supplied by publisher]
Source: Clinical Biochemistry - Category: Biochemistry Authors: Tags: Clin Biochem Source Type: research
TheASXL1 mutation frequency is high in AML ‐MRC patients being its presence associated with specific characteristics, including morphological signs of dysplasia. This association raises the possible role ofASXL1 as a surrogate marker in AML ‐MRC, which could facilitate the diagnosis of patients within this group when the karyotype is normal, and especially when the assessment of multilineage dysplasia morphologically is difficult. This mutation could be used as a worst outcome marker in de novo AML‐MRC with intermediate‐risk kar yotype. AbstractAcute myeloid leukemia with myelodysplasia ‐related changes (AML...
Source: Cancer Medicine - Category: Cancer & Oncology Authors: Tags: ORIGINAL RESEARCH Source Type: research
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Cells become senescent in response to a variety of circumstances. The vast majority are cases of replicative senescence, somatic cells reaching the Hayflick limit. Cell damage and toxic environments also produce senescence, and senescent cells are also created as a part of the wound healing process. A senescent cell ceases replication and begins to secrete inflammatory and pro-growth signals, altering the nearby extracellular matrix and behavior of surrounding cells - even encouraging them to become senescent as well. Near all senescent cells last a short time only, as they self-destruct or are removed by the immune...
Source: Fight Aging! - Category: Research Authors: Tags: Medicine, Biotech, Research Source Type: blogs
This study is registered with Clinicaltrials.gov, number NCT02560025, and has completed enrolment.FindingsBetween Dec 31, 2015, and Aug 1, 2017, we enrolled a total of 39 eligible patients. 19 (49%) of 39 patients had secondary acute myeloid leukaemia and three (8%) had therapy-related acute myeloid leukaemia. At mid-induction, 33 (85%) of 39 patients showed marrow aplasia, six (15%) received re-induction. The median follow-up was 13·7 months (IQR 12·7–14·4). Composite remission was 64% (two-stage 95% CI 48–79), with 20 (51%) of 39 patients achieving complete remission and five (13%) achiev...
Source: The Lancet Haematology - Category: Hematology Source Type: research
More News: Acute Leukemia | Acute Myeloid Leukemia | Cancer | Cancer & Oncology | Fish | Genetics | Hematology | Leukemia | Myelodysplastic Syndrome | Myeloproliferative Disorders | Study