Retraction of: Nima Taefehshokr, Alireza Isazadeh, Amin Oveisi, Yashar Azari Key and Sina Taefehshokr. Reciprocal role of hBD2 and hBD3 on the adaptive immune response by measuring T lymphocyte proliferation in terms of CD4 and CCR6 expression. Hormone Molecular Biology and Clinical Investigation. Volume 35, Issue 1-3, Article ID: 20180023. (DOI: 10.1515/hmbci-2018-0023). This article has been retracted by the editors/the publisher due to suspected academic misconduct which has not been refuted by the authors.