Clinicopathological analysis in PTCL-NOS with CADM1 expression

Area of Science:

• Oncology
• Immunology
• Hematology

Background:

• Peripheral T cell lymphoma, not otherwise specified (PTCL-NOS) is a heterogeneous hematologic malignancy.
• Ectopic expression of Cell adhesion molecule 1 (CADM1) has been observed in adult T cell leukaemia/lymphoma (ATLL).
• The frequency and prognostic significance of CADM1 expression in PTCL-NOS are currently unknown.

Purpose of the Study:

• To investigate the frequency of CADM1 expression in PTCL-NOS.
• To evaluate the association of CADM1 expression with clinicopathological features.
• To determine the prognostic value of CADM1 expression in PTCL-NOS patients.

Main Methods:

• Analysis of CADM1 expression in a cohort of 88 PTCL-NOS patients using immunohistochemistry.
• Correlation of CADM1 expression with C-C chemokine receptor type 4 (CCR4) expression and nuclear atypia.
• Prognostic evaluation using univariate and multivariate analyses.

Main Results:

• CADM1 expression was detected in 15.9% (14/88) of PTCL-NOS cases.
• CADM1 expression was significantly associated with CCR4 expression and nuclear atypia.
• CADM1-positive PTCL-NOS cases exhibited a significantly poorer prognosis compared to CADM1-negative cases (P = 0.001).
• Multivariate analysis confirmed CADM1 expression as an independent prognostic factor.

Conclusions:

• CADM1 expression is a novel and significant prognostic biomarker in PTCL-NOS.
• CADM1 positivity indicates a poorer prognosis for patients with PTCL-NOS.
• Further research into the role of CADM1 in PTCL-NOS pathogenesis is warranted.