Leukemia-lymphoma cell lines as model systems for hematopoietic research

Area of Science:

• Hematology
• Cell Biology
• Oncology

Background:

• Continuous human leukemia-lymphoma (LL) cell lines are indispensable for understanding hematopoietic tumor pathophysiology and fundamental cell biology.
• Key advantages include unlimited supply, global accessibility, and cryopreservation of identical cell material.
• LL cell lines are typically monoclonal, exhibit differentiation arrest, sustained in vitro proliferation, and possess specific genetic alterations.

Purpose of the Study:

• To review and propose a list of the most useful, robust, and freely available reference human leukemia-lymphoma cell lines.
• To emphasize the importance of clean and authenticated LL cell lines for the scientific community.
• To underscore the role of LL cell lines as powerful research tools in hematologic neoplasia research.

Main Methods:

• Classification of LL cell lines based on immunophenotype, genotype, and functional features, aligning them with physiologically occurring cell lineages.
• Distinguishing truly malignant cell lines from Epstein-Barr virus (EBV)-immortalized normal cells using operational and conceptual parameters.
• Reviewing characterization data and publication records of established LL cell lines.

Main Results:

• LL cell lines provide seminal insights into the biology of hematopoietic neoplasia.
• The availability of authenticated LL cell lines through public repositories facilitates widespread research.
• A curated list of valuable reference LL cell lines is presented for investigators.

Conclusions:

• Authenticated human leukemia-lymphoma cell lines are crucial for advancing research in hematologic malignancies.
• Standardized characterization and accessibility through cell banks are essential for their utility.
• LL cell lines remain powerful and ubiquitous tools for both basic science and clinical research in hematologic cancers.