Apoptosis in blood diseases. Review new data

Area of Science:

• Hematology
• Molecular Biology
• Oncology

Background:

• Apoptosis, or programmed cell death, plays a critical role in various hematological diseases.
• Recent advancements have elucidated novel features of apoptosis, including DNA fragmentation and enucleated cell death.

Purpose of the Study:

• To review current data on the involvement of apoptosis in hematological malignancies.
• To summarize new findings on apoptosis inducers, inhibitors, and their role in disease pathogenesis and treatment.

Main Methods:

• Literature review of recent data on apoptosis in hematological diseases.
• Summary of oncogene contributions (bcl-2, p53, c-myc) to apoptosis regulation.
• Analysis of apoptosis in specific conditions like red cell pathology, bone marrow failure, and various leukemias.

Main Results:

• Apoptosis is implicated in red cell disorders, bone marrow failure, and myelodysplasia.
• Drug efficacy in Acute Leukemia is linked to in vitro apoptotic effects.
• Resistance to apoptosis in Chronic Myeloid Leukemia involves bcr-abl oncogene and p53 alterations, potentially reversed by retinoic acid.
• Apoptosis is crucial for therapeutic efficacy in Chronic Lymphocytic Leukemia and Myeloma, influenced by specific drugs and cytokines.

Conclusions:

• Apoptosis is a central mechanism in the development and treatment of hematological diseases.
• Targeting apoptosis pathways offers promising therapeutic strategies for blood cancers.
• Further research into apoptosis regulation, including stromal interactions and specific molecular targets, is essential.