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. 2020 Apr 28;12(5):1094. doi: 10.3390/cancers12051094

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Expression of 5HT1A and 5HT1B serotonergic receptors in the microenvironment of melanoma tumors: (A) Expression of 5HT1A (green) receptor in a subpopulation of T-lymphocytes (CD3, red). (B) Melanoma cell (MelanA, red) expression of 5HT1A (green) receptor. (C) Section of epidermis showing the expression of the receptor 5HT1A (red) in epidermal keratinocytes. (D) Expression of 5HT1B (green) receptor in blood vessels, lymph vessels are stained for D2-40 (red) and do not express 5HT1B. Scale bars 10 µm.