1 Research Article Cell Biology International 10.1002/cbin.10708 Conditioned medium: a new alternative for cryopreservation of equine umbilical cord mesenchymal stem cells † Running head Conditioned medium for cryopreservation of MSCs Leandro Maia 1 , Marianne Camargos Dias 1 , Carolina Nogueira de Moraes 1 , Camila de Paula Freitas-Dell’aqua 1 , Ligia S. L. Silveira da Mota 2 , Valquíria Santiloni 2 , Fernanda da Cruz Landim-Alvarenga 1 1 Department of Animal Reproduction, São Paulo State University – District of Rubião Júnior, n/n, CEP: 18618970, Botucatu, São Paulo, Brazil. *Corresponding author. 2 Department of Genetics, Bioscience Institute, São Paulo State University, District of Rubião Júnior, n/n, CEP: 18618970, Botucatu, São Paulo, Brazil † This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: [10.1002/cbin.10708] This article is protected by copyright. All rights reserved Received: 16 June 2016; Revised: 8 September 2016; Accepted: 18 November 2016