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Year : 2022  |  Volume : 18  |  Issue : 6  |  Page : 1733-1737

Stromal microenvironment namely angiogenesis, tumor-infiltrating lymphocytes, and matrix metalloproteinase in invasive breast carcinoma: Do they have a prognostic role?

1 Department of Pathology, North Delhi Medical College, Hindu Rao Hospital, Delhi, India
2 Division of Cytopathology, ICMR-National Institute of Cancer Prevention and Research, Noida, Uttar Pradesh, India

Correspondence Address:
Ruchika Gupta
Scientist-D, Division of Cytopathology, ICMR-National Institute of Cancer Prevention and Research, I-7, Sector-39, Noida - 201 301, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcrt.jcrt_95_21

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Background: The role of stromal microenvironment in growth, invasiveness, and metastatic potential of breast carcinoma (BC) is being recognized increasingly, both to predict prognosis and as potential therapeutic targets. The present study aimed to evaluate the correlation of angiogenesis, tumor-associated lymphocytes, and stromal CD10 expression with clinicopathologic parameters. Materials and Methods: This study included 100 consecutive cases of invasive BC undergoing modified radical mastectomy. Relevant clinical details, pathological grade, lymph nodal status, and clinical stage were noted. Paraffin-embedded sections were subjected to immunohistochemistry for CD34, CD20, CD45RO, and CD10. Microvessel density (MVD), tumor-associated lymphocytes, and stromal CD10 expression were estimated from these sections. Statistical analysis was done using nonparametric tests to correlate the clinic-pathologic features with each of these parameters. Results: MVD was found to be significantly higher in Grade III, node-positive cases, and higher stage breast cancers (P < 0.05). The number of T-lymphocytes was higher in node-positive cases, while B-lymphocytes were lower in number in higher grade tumors. CD10 expression showed a significant positive association with tumor grade, nodal status, and stage (P < 0.05 for each). Conclusion: This study demonstrates that changes in stromal microenvironment of BC such as MVD, tumor-associated lymphocytes, and stromal CD10 expression correlate with the clinicopathological parameters and hence may be exploited as prognostic markers or therapeutic targets, based on further larger studies.

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