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Immunoglobulin Gene Sequence Analysis In Chronic Lymphocytic Leukemia: From Patient Material To Sequence Interpretation
09:02

Immunoglobulin Gene Sequence Analysis In Chronic Lymphocytic Leukemia: From Patient Material To Sequence Interpretation

Published on: November 26, 2018

The normal counterpart to the chronic lymphocytic leukemia B cell

Federico Caligaris-Cappio1, Paolo Ghia

  • 1Department of Oncology, Lymphoma Unit, Università Vita-Salute San Raffaele and Istituto Scientifico San Raffaele, Via Olgettina 58, 20132 Milano, Italy. caligaris.federico@hsr.it

Best Practice & Research. Clinical Haematology
|August 21, 2007
PubMed

Insights

Chronic lymphocytic leukemia (CLL) involves abnormal B cell growth. This review explores the characteristics of a normal B cell that could be the origin of CLL, aiding disease understanding.

Area of Science:

  • Hematology
  • Immunology
  • Oncology

Background:

  • Chronic lymphocytic leukemia (CLL) is defined by the monoclonal expansion of mature B cells.
  • CLL cells exhibit phenotypic homogeneity, co-expressing CD5 and CD23 with low surface immunoglobulin levels.
  • Gene expression profiling supports a common pathogenic mechanism for CLL.

Purpose of the Study:

  • To review the defining features of B cells that may serve as the normal counterpart to CLL B cells.
  • To address the long-standing question regarding the cell of origin for CLL.

Main Methods:

  • Review of existing literature on CLL cell biology and B cell development.
  • Analysis of phenotypic and genotypic data of CLL cells.
  • Comparison of CLL cell characteristics with potential normal B cell precursors.

Main Results:

  • CLL cells are characterized by specific surface markers (CD5, CD23) and low surface immunoglobulin expression.
  • Despite phenotypic homogeneity, the precise cell of origin remains elusive.
  • The review discusses potential normal B cell populations that share key features with CLL cells.

Conclusions:

  • Identifying the normal counterpart of CLL B cells is crucial for understanding disease pathogenesis.
  • Further research is needed to definitively pinpoint the cell of origin.
  • Understanding the origin may lead to novel therapeutic strategies for chronic lymphocytic leukemia.

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