HEMATOPOIETIC MALIGNANCIES: PATHOGENESIS, CLINICAL MANIFESTATIONS, AND CONTEMPORARY TREATMENT APPROACHES
Abstract
Hematopoietic malignancies, particularly leukemias, represent a heterogeneous group of life-threatening disorders characterized by the uncontrolled proliferation of abnormal blood cells. This comprehensive review examines the molecular pathogenesis, classification, diagnostic modalities, and evidence-based treatment strategies for acute and chronic leukemias. Recent epidemiological data indicate that leukemia accounts for 3.2% of all cancer diagnoses globally, with acute lymphoblastic leukemia (ALL) being the most common childhood malignancy. The article analyzes modern therapeutic approaches, including targeted therapies (e.g., tyrosine kinase inhibitors), CAR-T cell immunotherapy, and hematopoietic stem cell transplantation. Special emphasis is placed on emerging biomarkers for early detection and management of treatment-related complications.
References
1. Arber DA, Orazi A, Hasserjian R, et al. The 2022 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia. Leukemia. 2022;36(7):1703-1719. doi:10.1038/s41375-022-01613-1
2. National Comprehensive Cancer Network. NCCN Clinical Practice Guidelines in Oncology: Acute Lymphoblastic Leukemia. Version 3.2023. https://www.nccn.org
3. Döhner H, Wei AH, Appelbaum FR, et al. Diagnosis and management of AML in adults: 2022 recommendations from an international expert panel. Blood. 2022;140(12):1345-1377. doi:10.1182/blood.2022016867
4. Hunger SP, Mullighan CG. Acute lymphoblastic leukemia in children. N Engl J Med. 2021;385(12):1141-1153. doi:10.1056/NEJMra2114338
5. Kantarjian HM, Short NJ, Fathi AT, et al. Acute myeloid leukemia: treatment and research outlook for 2023. Am Soc Clin Oncol Educ Book. 2023;43:e390429. doi:10.1200/EDBK_390429
6. Hallek M, Al-Sawaf O. Chronic lymphocytic leukemia: 2023 update on diagnosis, risk stratification, and treatment. Am J Hematol. 2023;98(2):334-357. doi:10.1002/ajh.26770
7. Hochhaus A, Saussele S, Rosti G, et al. Chronic myeloid leukaemia: ESMO Clinical Practice Guidelines. Ann Oncol. 2023;34(3):239-255. doi:10.1016/j.annonc.2022.11.013
8. FDA approves tisagenlecleucel for B-cell ALL. U.S. Food and Drug Administration. August 30, 2022. https://www.fda.gov
9. Global Cancer Observatory. Leukemia fact sheet 2023. World Health Organization. https://gco.iarc.fr
10. Pemmaraju N, Kantarjian H, Andreeff M, et al. Advances in acute myeloid leukemia: recently approved therapies and drugs in development. Cancers (Basel). 2023;15(3):788. doi:10.3390/cancers15030788




















