PMID- 34181122 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210714 IS - 2090-5920 (Electronic) IS - 1687-157X (Print) IS - 1687-157X (Linking) VI - 19 IP - 1 DP - 2021 Jun 28 TI - Evaluation of MLPA as a comprehensive molecular cytogenetic tool to detect cytogenetic markers of chronic lymphocytic leukemia in Egyptian patients. PG - 98 LID - 10.1186/s43141-021-00198-z [doi] LID - 98 AB - BACKGROUND: Chronic lymphocytic leukemia (CLL) is the most common form of adult leukemia. This disease is genetically heterogeneous, and approximately 85% of patients with CLL harbor chromosomal aberrations that are considered effective prognostic biomarkers. The most frequent aberrations include deletions in 13q14, followed by trisomy 12, and deletions in 11q22.3 and 17p13 (TP53). Currently, fluorescence in situ hybridization (FISH) is the most widely used molecular cytogenetic technique to detect these aberrations. However, FISH is laborious, time-consuming, expensive, and has a low throughput. In contrast, multiplex ligation-dependent probe amplification (MLPA) is a reliable, cost-effective, and relatively rapid technique that can be used as a first-line screening tool and complement with FISH analysis. This study aimed to evaluate the contributions of MLPA as a routine standalone screening platform for recurrent chromosomal aberrations in CLL in comparison to other procedures. Thirty patients with CLL were screened for the most common genomic aberrations using MLPA with SALSA MLPA probemix P038-B1 CLL and FISH. RESULTS: In 24 of the 30 cases (80%), the MLPA and FISH results were concordant. Discordant results were attributed to a low percentage of mosaicism. Moreover, the MLPA probemix contains probes that target other genomic areas known to be linked to CLL in addition to those targeting common recurrent CLL aberrations. CONCLUSIONS: The usage of MLPA as the first screening platform followed by FISH technique for only the negative cases is the most appropriate approach for CLL diagnosis and prognosis. FAU - Eid, Ola M AU - Eid OM AD - Human Cytogenetics Department, Human Genetics and Genome Research Division, National Research Centre, Bohouth Street, 12311 Dokki, Cairo, Egypt. FAU - Abdel Kader, Rania M A AU - Abdel Kader RMA AD - Human Cytogenetics Department, Human Genetics and Genome Research Division, National Research Centre, Bohouth Street, 12311 Dokki, Cairo, Egypt. Rania_m_heggy@hotmail.com. FAU - Fathalla, Lamiaa A AU - Fathalla LA AD - Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt. FAU - Abdelrahman, Amany H AU - Abdelrahman AH AD - Clinical Pathology Department, National Research Centre, Cairo, Egypt. FAU - Rabea, Ahmed AU - Rabea A AD - Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt. FAU - Mahrous, Rana AU - Mahrous R AD - Human Cytogenetics Department, Human Genetics and Genome Research Division, National Research Centre, Bohouth Street, 12311 Dokki, Cairo, Egypt. FAU - Eid, Maha M AU - Eid MM AD - Human Cytogenetics Department, Human Genetics and Genome Research Division, National Research Centre, Bohouth Street, 12311 Dokki, Cairo, Egypt. LA - eng PT - Journal Article DEP - 20210628 PL - Netherlands TA - J Genet Eng Biotechnol JT - Journal, genetic engineering & biotechnology JID - 101317150 PMC - PMC8239093 OTO - NOTNLM OT - Chromosomal aberrations OT - Chronic lymphocytic leukemia (CLL) OT - Fluorescence in situ hybridization (FISH) OT - Multiplex ligation-dependent probe amplification (MLPA) COIS- The authors declare that they have no competing interests. EDAT- 2021/06/29 06:00 MHDA- 2021/06/29 06:01 PMCR- 2021/06/28 CRDT- 2021/06/28 12:30 PHST- 2021/02/10 00:00 [received] PHST- 2021/06/14 00:00 [accepted] PHST- 2021/06/28 12:30 [entrez] PHST- 2021/06/29 06:00 [pubmed] PHST- 2021/06/29 06:01 [medline] PHST- 2021/06/28 00:00 [pmc-release] AID - 10.1186/s43141-021-00198-z [pii] AID - 198 [pii] AID - 10.1186/s43141-021-00198-z [doi] PST - epublish SO - J Genet Eng Biotechnol. 2021 Jun 28;19(1):98. doi: 10.1186/s43141-021-00198-z.