Anti-Human Germinal Center–Associated Lymphoma (HGAL) CE/IVD antibodies are essential IHC tools in hematopathology for identifying germinal center (GC) B-cell origin and refining lymphoma classification. HGAL (also known as GCET2) is a GC-associated protein discovered through gene-expression profiling of B-cell lymphomas and is recognized as a useful immunohistochemical marker in diagnostic pathology.
Biological Significance of HGAL
HGAL is a germinal center–associated protein expressed predominantly in normal GC B lymphocytes and GC-derived lymphomas.
- Expressed mainly in GC B cells and typically not detected in most non–germinal center lymphoid compartments.
- Involved in the regulation of lymphocyte motility through pathways including RhoA signaling, contributing to controlled cellular migration.
- Expression has been associated with more favorable outcomes in certain lymphoma studies, including diffuse large B-cell lymphoma (DLBCL), although it is not used as a standalone prognostic marker in routine practice.
- Identified as part of germinal center transcriptional signatures derived from molecular profiling studies.
Diagnostic Utility in Hematopathology
HGAL is a useful immunohistochemical biomarker for supporting germinal center derivation and is commonly used in combination with CD10 and BCL6.
- Frequently expressed in follicular lymphoma, Burkitt lymphoma, and germinal center B-cell–type DLBCL.
- Provides complementary information alongside established GC markers such as CD10 and BCL6.
- Helps support distinction between germinal center (GC) and non–germinal center (non-GC) DLBCL subtypes in conjunction with other markers.
- Assists in identifying germinal center–derived B-cell populations in disrupted lymphoid architecture and atypical lymphoid proliferations.
- May show expression in a subset of Hodgkin lymphoma cases, though its diagnostic utility in this context is limited and not routine.
Key Features of HGAL CE/IVD Antibodies
- Validated for formalin-fixed, paraffin-embedded (FFPE) tissue in immunohistochemistry.
- Designed for reliable detection of germinal center–associated HGAL/GCET2 protein expression.
- Suitable for use in hematopathology workflows supporting lymphoma classification.
- Intended to complement established diagnostic markers in multi-parameter IHC panels.
