Background: Neuropilins (NRPs) participate in many processes related to cancer development
such as angiogenesis, lymphangiogenesis and metastasis. Although endometrial cancer is one of
the most common gynecological cancers, it has not been studied in terms of NRPs expression.
Objective: The aim of this study was to investigate the potential utility of NRPs as important factors in
the diagnosis and treatment of endometrial cancer.
Methods: Our study consisted of 45 women diagnosed with endometrial cancer at the following degrees
of histological differentiation: G1, 17; G2, 15; G3, 13 cases. The control group included 15 women without
neoplastic changes. The immunohistochemical reactions were evaluated using light microscopy.
Results: We did not detect the expression of NRP-1 and NRP-2 in the control group. NRP-1 expression
was found exclusively in cancer cells. It was higher in G2 and G3 and reached about 190% of G1.
NRP-2 expression was observed in the endothelium and was similar across all three cancer grades. In
cancer cells, NRP-2 expression increased with the degree of histological differentiation.
Conclusion: NRP1 and NRP2 are candidates for complementary diagnostic molecular markers and
promising new targets for molecular, personalized anticancer therapies.