<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Taddio, Andrea</style></author><author><style face="normal" font="default" size="100%">Tommasini, Alberto</style></author><author><style face="normal" font="default" size="100%">Valencic, Erica</style></author><author><style face="normal" font="default" size="100%">Biagi, Ettore</style></author><author><style face="normal" font="default" size="100%">Decorti, Giuliana</style></author><author><style face="normal" font="default" size="100%">De Iudicibus, Sara</style></author><author><style face="normal" font="default" size="100%">Cuzzoni, Eva</style></author><author><style face="normal" font="default" size="100%">Gaipa, Giuseppe</style></author><author><style face="normal" font="default" size="100%">Badolato, Raffaela</style></author><author><style face="normal" font="default" size="100%">Prandini, Alberto</style></author><author><style face="normal" font="default" size="100%">Biondi, Andrea</style></author><author><style face="normal" font="default" size="100%">Ventura, Alessandro</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Failure of interferon-γ pre-treated mesenchymal stem cell treatment in a patient with Crohn's disease.</style></title><secondary-title><style face="normal" font="default" size="100%">World J Gastroenterol</style></secondary-title><alt-title><style face="normal" font="default" size="100%">World J. Gastroenterol.</style></alt-title></titles><dates><year><style  face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2015 Apr 14</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">21</style></volume><pages><style face="normal" font="default" size="100%">4379-84</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Mesenchymal stem cells (MSC) are cells of stromal origin which exhibit unlimited self-renewal capacity and pluripotency in vitro. It has recently been observed that MSC may also exert a profound immunosuppressive and anti-inflammatory effect both in vitro and in vivo with consequent potential use in autoimmune disorders. We present the case of a patient suffering from childhood-onset, multidrug resistant and steroid-dependent Crohn's disease who underwent systemic infusions of MSC, which led to a temporary reduction in CCR4, CCR7 and CXCR4 expression by T-cells, and a temporary decrease in switched memory B-cells, In addition, following MSC infusion, lower doses of steroids were needed to inhibit proliferation of the patient's peripheral blood mononuclear cells. Despite these changes, no significant clinical benefit was observed, and the patient required rescue therapy with infliximab and subsequent autologous hematopoietic stem cell transplantation. The results of biological and in vitro observations after MSC use and the clinical effects of infusion are discussed, and a brief description is provided of previous data on MSC-based therapy in autoimmune disorders.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">14</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/25892890?dopt=Abstract</style></custom1></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Piscianz, Elisa</style></author><author><style face="normal" font="default" size="100%">Valencic, Erica</style></author><author><style face="normal" font="default" size="100%">Cuzzoni, Eva</style></author><author><style face="normal" font="default" size="100%">De Iudicibus, Sara</style></author><author><style face="normal" font="default" size="100%">De Lorenzo, Elisa</style></author><author><style face="normal" font="default" size="100%">Decorti, Giuliana</style></author><author><style face="normal" font="default" size="100%">Tommasini, Alberto</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Fate of lymphocytes after withdrawal of tofacitinib treatment.</style></title><secondary-title><style face="normal" font="default" size="100%">PLoS One</style></secondary-title><alt-title><style face="normal" font="default" size="100%">PLoS ONE</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Antigens, CD</style></keyword><keyword><style  face="normal" font="default" size="100%">B-Lymphocytes</style></keyword><keyword><style  face="normal" font="default" size="100%">CD4-Positive T-Lymphocytes</style></keyword><keyword><style  face="normal" font="default" size="100%">CD8-Positive T-Lymphocytes</style></keyword><keyword><style  face="normal" font="default" size="100%">Cell Proliferation</style></keyword><keyword><style  face="normal" font="default" size="100%">Drug Administration Schedule</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Janus Kinase 3</style></keyword><keyword><style  face="normal" font="default" size="100%">Killer Cells, Natural</style></keyword><keyword><style  face="normal" font="default" size="100%">Lymphocyte Activation</style></keyword><keyword><style  face="normal" font="default" size="100%">Lymphocyte Count</style></keyword><keyword><style  face="normal" font="default" size="100%">Phytohemagglutinins</style></keyword><keyword><style  face="normal" font="default" size="100%">Piperidines</style></keyword><keyword><style  face="normal" font="default" size="100%">Primary Cell Culture</style></keyword><keyword><style  face="normal" font="default" size="100%">Protein Kinase Inhibitors</style></keyword><keyword><style  face="normal" font="default" size="100%">Pyrimidines</style></keyword><keyword><style  face="normal" font="default" size="100%">Pyrroles</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2014</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">9</style></volume><pages><style face="normal" font="default" size="100%">e85463</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Tofacitinib (Tofa) is an inhibitor of Janus Kinase 3, developed for the treatment of autoimmune diseases and for the prevention of transplant rejection. Due to its selective action on proliferating cells, Tofa can offer a way to block T cell activation, without toxic effects on resting cells. However, few studies have investigated the effects of Tofa on lymphocyte activation in vitro. Our aim was to study the action of Tofa on different lymphocyte subsets after in vitro stimulation and to track the behaviour of treated cells after interruption of the treatment. Peripheral blood lymphocytes were stimulated in vitro with mitogen and treated with two concentrations of Tofa. After a first period in culture, cells were washed and further incubated for an additional time. Lymphocyte subsets, activation phenotype and proliferation were assessed at the different time frames. As expected, Tofa was able to reduce the activation and proliferation of lymphocytes in the first four days of treatment. In addition the drug led to a relative decrease of Natural Killer, B cells and CD8 T cells compared to CD4 T cells. However, treated cells were still viable after the first period in culture and begun to proliferate, strikingly, in a dose dependent manner when the drug was removed from the environment by replacing the culture medium. This novel data does not necessarily predict a similar behaviour in vivo, but can warn about the clinical use of this drug when a discontinuation of treatment with Tofa is considered for any reason.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/24416411?dopt=Abstract</style></custom1></record></records></xml>