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CC BY-NC-ND 4.0 · J Lab Physicians 2023; 15(02): 282-288
DOI: 10.1055/s-0042-1760400
Original Article

Histopathological Evaluation of Angiogenic Markers in Non-Hodgkin's Lymphoma

Priyanka Singh
1   Department of Pathology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India
,
Anita Tahlan
2   Department of Pathology, Government Medical College and Hospital, Chandigarh, India
3   Department of Medicine, Government Medical College and Hospital, Chandigarh, India
,
Harsh Mohan
2   Department of Pathology, Government Medical College and Hospital, Chandigarh, India
,
Ram Singh
2   Department of Pathology, Government Medical College and Hospital, Chandigarh, India
3   Department of Medicine, Government Medical College and Hospital, Chandigarh, India
› Author Affiliations
Funding None.
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Abstract

Background Angiogenesis plays a key role in the development, maintenance, and progression of tumor. The incidence of non-Hodgkin's lymphoma (NHL) is increasing from the past three decades.

Materials and Methods The aim of the study is to evaluate microvessel density (MVD) using CD34 monoclonal antibody and vascular endothelial growth factor (VEGF) using monoclonal antibody that were studied in pretreatment paraffin-embedded tissue samples of 60 cases.

Results MVD was found to be increased in parallel with increasing grade of tumor. B-NHL had a mean MVD of 79.5 ± 8.8 (no./mm2), while T-NHL had a mean MVD of 183 ± 37.6 (no./mm2). VEGF expression was seen in 42 cases (70%), 20 cases (33.3%) showed strong VEGF expression, and the remainder showed either weak (36.6%) or no (30%) staining. Strong VEGF expression is seen in 100% cases of T-NHL and 77.7% cases of B-NHL. Mean MVD and VEGF expression was found to be correlated significantly with the histological grade of NHL (p = 0.001 and p = 0.000, respectively). Average microvessel counts were 53, 82.9, and 130.8 vessels (no./mm2) for negative, weak, and strong VEGF staining, respectively. These differences were statistically significant (p = 0.005 for strong vs. negative and p = 0.091 for strong vs. weak VEGF staining individually).

Conclusion As the grade of tumor progresses, the angiogenic potential also advances which seems to depend on VEGF. The presence of higher MVD in high-grade lymphomas can be utilized for antiangiogenic drugs.

Keywords

angiogenesis - CD34 - hot spots - microvessel density - non-Hodgkin's lymphoma


Publication History

Article published online:
18 January 2023

© 2023. The Indian Association of Laboratory Physicians. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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