BCL6 IHC (expresión de proteínas)
Vista determinista de la entidad fuente YAML. La autoridad clínica sigue con los ID de fuente citados y estado de firma del revisor.
| ID | BIO-BCL6-IHC |
|---|---|
| Tipo | Biomarcador |
| Aliaces | Linfoma de células B 6 proteínaBCL-6 IHCBCL6 inmunohistoquímicaProteína BCL6 |
| Situación | reviewed 2026-05-05 | pending_clinical_signoff |
| Enfermedades | Ninguna declarada |
| Fuentes | SRC-NCCN-BCELL-2025 |
Datos sobre biomarcadores
| Tipo de biomarcador | protein_expression_ihc |
|---|---|
| Detalles de la mutación | {"gene_id_ncbi": 604, "gene_symbol": "BCL6", "note": "BCL6 is a transcriptional repressor essential for germinal center (GC) B-cell development. BCL6 IHC detects nuclear protein expression (not rearrangement). Positive = nuclear staining. Threshold: >30% nuclear positivity typically used as cut-off for GC-origin classification (Hans algorithm). Note: BIO-BCL6-REARRANGEMENT is a distinct biomarker (chromosomal translocation detected by FISH) — different from BCL6 protein expression by IHC.\n"} |
| Medición | MétodoIHC en biopsia de FFPE. Anticuerpo anti-BCL6 (clona PG-B6p). Tinción nuclear puntuada como % de células tumorales positivas. umbral del algoritmo de Hans: >30% nucleos positivos = BCL6+. Puntuación automatizada en plataformas de patología digital cada vez más utilizada. |
| Productos químicos y químicos | BIO-CD10-IHC BIO-MUM1-IHC BIO-DLBCL-COO-HANS BIO-BCL6-REARRANGEMENT BIO-MYC-REARRANGEMENT |
Notas
BCL6 IHC is a core component of the Hans algorithm for DLBCL cell-of-origin classification. While gene expression profiling (GEP, Lymph2Cx assay) is the reference standard for GCB/ABC classification, Hans IHC is widely used in resource-limited settings (concordance with GEP ~80%). BCL6 protein expression is distinct from BCL6 chromosomal rearrangement (t(3;v) translocations detected by FISH) — both exist independently. BCL6 rearrangement occurs in ~25-35% of DLBCL and may be present in either GCB or non-GCB subtypes.
Utilizado por
Biomarcador
BIO-CD10-IHC- CD10 IHC (CALLA, neprilysin)BIO-MUM1-IHC- MUM1/IRF4 IHC (Múltiple Myeloma oncogene 1)