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GENE:

IGH (Immunoglobulin Heavy Locus)

i
Other names: IGH, Immunoglobulin Heavy Locus, Immunoglobulin Heavy Polypeptide, Joining Region, Immunglobulin Heavy Chain Variable Region, Immunoglobulin Heavy Diversity Cluster, Immunoglobulin Heavy Variable Cluster, D (Diversity) Region Of Heavy Chains, Immunoglobulin Heavy Diversity Group, Immunoglobulin Heavy Diversity Locus, Immunoglobulin Heavy Joining Cluster, Immunoglobulin Heavy Variable Group, J (Joining) Region Of Heavy Chains, Immunoglobulin Heavy Joining Group, Immunglobulin Heavy Chain, IGH.1@, IGHDY1, IGHD@, IGHJ@, IGHV@, IGD1, IGHJ, IGHV, IGH@
1d
Comparative evaluation of two NGS-based assays for somatic hypermutation analysis of IGHV genes in chronic lymphocytic leukemia. (PubMed, Blood Res)
These findings indicate that the Leader assay provides a more reliable assessment of SHM status, with higher concordance with SS. Although the FR1 assay may offer additional information regarding clonal patterns, its results should be interpreted cautiously. Given the limited sample size, further studies are warranted to validate these findings. Overall, the Leader assay appears to be more suitable as a primary tool for SHM evaluation, with FR1 results serving a complementary role when interpreted in clinical context.
Journal • Next-generation sequencing
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IGH (Immunoglobulin Heavy Locus)
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IGH mutation
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LymphoTrack® Dx IGH Assay
5d
Prevalence and Impact of Cardiovascular Comorbidities on Disease Outcomes in a Middle Eastern Chronic Lymphocytic Leukemia Population: A Retrospective Study at Kuwait Cancer Control Centre. (PubMed, Med Princ Pract)
Comorbidities, particularly vascular disease and diabetes mellitus , significantly affect survival outcomes in CLL patients. These findings highlight the importance of integrated management strategies that address both CLL and comorbid conditions, especially in populations with high cardiometabolic risk.
Retrospective data • Journal
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IGH (Immunoglobulin Heavy Locus)
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IGH mutation
6d
The APLC expert consensus recommendations on the management of chronic lymphocytic leukaemia in Asia. (PubMed, Ann Acad Med Singap)
These updated APLC consensus recommendations provide clinicians across the APAC with an evidence-based, pragmatic framework for managing CLL. They aim to support treatment consistency, optimise sequencing strategies and address gaps in diagnostics, access and long-term survivorship care across diverse healthcare settings.
Journal
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TP53 (Tumor protein P53) • BCL2 (B-cell CLL/lymphoma 2) • IGH (Immunoglobulin Heavy Locus)
7d
A Rare Case of Cutaneous Crystal-Storing Histiocytosis With Kappa Light Chain Restriction and Unusual BCL6 Expression. (PubMed, J Cutan Pathol)
A subset of histiocytes showed weak BCL6 expression of uncertain significance. This case highlights the importance of recognizing cutaneous CSH, emphasizes evaluation for an underlying lymphoproliferative disorder, and illustrates immunohistochemical pitfalls that may complicate interpretation.
Journal
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BRAF (B-raf proto-oncogene) • BCL6 (B-cell CLL/lymphoma 6) • IGH (Immunoglobulin Heavy Locus) • CD163 (CD163 Molecule) • CD68 (CD68 Molecule)
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BRAF V600E • BRAF V600
11d
Efficacy of Vitreous Biopsy and Clinical Course in Vitreoretinal Lymphoma: A Single-Center Retrospective Analysis. (PubMed, J Clin Med)
Comprehensive vitreous sampling incorporating perfusion fluid may improve cytologic detection in PVRL within a single-center setting. Routine MRI surveillance facilitates early detection of CNS relapse in patients with PVRL; however, a survival benefit cannot be established from this retrospective analysis.
Retrospective data • Journal
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IGH (Immunoglobulin Heavy Locus) • IL6R (Interleukin 6 receptor)
12d
A phase I/II Study of Duvelisib plus Venetoclax in Patients with Relapsed/Refractory CLL/SLL or Richter Transformation. (PubMed, Blood Adv)
Overall, duvelisib plus venetoclax was active in high-risk R/R CLL/SLL and RT, though serious adverse events occurred, including immune-mediated toxicities. NCT03534323.
P1/2 data • Journal
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TP53 (Tumor protein P53) • IGH (Immunoglobulin Heavy Locus)
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Venclexta (venetoclax) • Copiktra (duvelisib)
13d
Immunogenetic Architecture of Chronic Lymphocytic Leukemia at Early Stage: Insights from the O-CLL1 Cohort. (PubMed, Antibodies (Basel))
Early-diagnosis CLL displays a biased IGHV repertoire with stereotyped configurations characteristic of CLL, including subsets that are rare in the normal B-cell repertoire. These findings support a central role for antigen-driven selection in shaping CLL evolution.
Journal
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IGH (Immunoglobulin Heavy Locus)
19d
Hodgkin Variant Richter's Transformation in the Absence of Classical Risk Factors: A Rare Case With Spinal Manifestation. (PubMed, Cureus)
After receiving six cycles of brentuximab+doxorubicin, vinblastine, and dacarbazine (A+AVD) therapy at our Department of Hematology (University of Debrecen), the patient achieved complete metabolic remission (CMR) and remains in good condition. HL-RT in CLL is relatively rare and generally associated with poorer outcomes, though it is typically more favorable than DLBCL-RT. In this case report, we highlight not only an uncommon anatomical location of HL-RT but also the absence of typical predisposing factors, such as a TP53 mutation, unmutated immunoglobulin heavy chain (IGHV) status, or a lack of 13q deletion.
Journal
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TP53 (Tumor protein P53) • IGH (Immunoglobulin Heavy Locus)
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TP53 mutation • IGH mutation
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doxorubicin hydrochloride • Adcetris (brentuximab vedotin) • dacarbazine • vinblastine
19d
Absence of CD38 Expression in Mantle Cell Lymphoma Correlates with Distinct Pathological and Genetic Features. (PubMed, Hum Pathol)
Biologically, CD38-negative cnMCLs appear to be more likely driven by CD38-independent, alternative signaling pathways. From a clinical perspective, identification of CD38-negative cnMCLs by flow cytometry may help recognizing patients at increased risk for adverse genetic features, including TP53 inactivation.
Journal • IO biomarker
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TP53 (Tumor protein P53) • NOTCH1 (Notch 1) • CXCR4 (Chemokine (C-X-C motif) receptor 4) • IGH (Immunoglobulin Heavy Locus) • KMT2D (Lysine Methyltransferase 2D) • CD38 (CD38 Molecule) • CD79B (CD79b Molecule) • NOTCH2 (Notch 2) • SOX11 (SRY-Box Transcription Factor 11) • NSD2 (Nuclear Receptor Binding SET Domain Protein 2)
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TP53 mutation • ATM mutation • IGH mutation
21d
Enrollment closed • Minimal residual disease
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TP53 (Tumor protein P53) • IGH (Immunoglobulin Heavy Locus)
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TP53 mutation
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Venclexta (venetoclax) • Gazyva (obinutuzumab) • Brukinsa (zanubrutinib)