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  1. Article ; Online: GVHD-derived plasma as a priming strategy of mesenchymal stem cells.

    Silva-Carvalho, Amandda Évelin / Rodrigues, Leane Perim / Schiavinato, Josiane Lilian / Alborghetti, Marcos Rodrigo / Bettarello, Gustavo / Simões, Belinda Pinto / Neves, Francisco de Assis Rocha / Panepucci, Rodrigo Alexandre / de Carvalho, Juliana Lott / Saldanha-Araujo, Felipe

    Stem cell research & therapy

    2020  Volume 11, Issue 1, Page(s) 156

    Abstract: Background: Mesenchymal stem cell (MSC) therapy is an important alternative for GVHD treatment, but a third of patients fail to respond to such therapy. Therefore, strategies to enhance the immunosuppressive potential of MSCs constitute an active area ... ...

    Abstract Background: Mesenchymal stem cell (MSC) therapy is an important alternative for GVHD treatment, but a third of patients fail to respond to such therapy. Therefore, strategies to enhance the immunosuppressive potential of MSCs constitute an active area of investigation. Here, we proposed an innovative priming strategy based on the plasma obtained from GVHD patients and tested whether this approach could enhance the immunosuppressive capacity of MSCs.
    Methods: We obtained the plasma from healthy as well as acute (aGVHD) and chronic (cGVHD) GVHD donors. Plasma samples were characterized according to the TNF-α, IFN-γ, IL-10, IL-1β, IL-12p40, and IL-15 cytokine levels. The MSCs primed with such plasmas were investigated according to surface markers, morphology, proliferation, mRNA expression, and the capacity to control T cell proliferation and Treg generation.
    Results: Interestingly, 57% of aGVHD and 33% of cGVHD plasmas significantly enhanced the immunosuppressive potential of MSCs. The most suppressive MSCs presented altered morphology, and those primed with cGHVD displayed a pronounced overexpression of ICAM-1 on their surface. Furthermore, we observed that the ratio of IFN-γ to IL-10 cytokine levels in the plasma used for MSC priming was significantly correlated with higher suppressive potential and Treg generation induction by primed MSCs, regardless of the clinical status of the donor.
    Conclusions: This work constitutes an important proof of concept which demonstrates that it is possible to prime MSCs with biological material and also that the cytokine levels in the plasma may affect the MSC immunosuppressive potential, serving as the basis for the development of new therapeutic approaches for the treatment of immune diseases.
    MeSH term(s) Cytokines ; Graft vs Host Disease ; Humans ; Mesenchymal Stem Cell Transplantation ; Mesenchymal Stem Cells ; T-Lymphocytes, Regulatory ; Tumor Necrosis Factor-alpha
    Chemical Substances Cytokines ; Tumor Necrosis Factor-alpha
    Language English
    Publishing date 2020-04-16
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2548671-8
    ISSN 1757-6512 ; 1757-6512
    ISSN (online) 1757-6512
    ISSN 1757-6512
    DOI 10.1186/s13287-020-01659-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: LEAM versus CBV for conditioning in autologous hematopoietic stem cell transplantation for lymphoma.

    Dos Santos, Kelli Borges / Costa, Luciano José Megale / Bettarello, Gustavo / da Matta Abreu, Marcus / Mayrink, Graziela Toledo Costa / Mota, Mariza Aparecida / Ribeiro, Luiz Cláudio / Pereira, Juliana / Hallack Neto, Abrahão Elias

    Bone marrow transplantation

    2018  Volume 54, Issue 4, Page(s) 625–628

    MeSH term(s) Adult ; Antineoplastic Combined Chemotherapy Protocols/administration & dosage ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use ; Carmustine/administration & dosage ; Cyclophosphamide/administration & dosage ; Doxorubicin/administration & dosage ; Etoposide/administration & dosage ; Female ; Hematopoietic Stem Cell Transplantation/methods ; Humans ; Lomustine/administration & dosage ; Lymphoma/drug therapy ; Lymphoma/therapy ; Male ; Methotrexate/administration & dosage ; Prednisolone/administration & dosage ; Prospective Studies ; Transplantation Conditioning/methods ; Transplantation, Autologous
    Chemical Substances Etoposide (6PLQ3CP4P3) ; Lomustine (7BRF0Z81KG) ; Doxorubicin (80168379AG) ; Cyclophosphamide (8N3DW7272P) ; Prednisolone (9PHQ9Y1OLM) ; Carmustine (U68WG3173Y) ; Methotrexate (YL5FZ2Y5U1)
    Language English
    Publishing date 2018-10-03
    Publishing country England
    Document type Clinical Trial, Phase I ; Clinical Trial, Phase II ; Letter ; Multicenter Study
    ZDB-ID 632854-4
    ISSN 1476-5365 ; 0268-3369 ; 0951-3078
    ISSN (online) 1476-5365
    ISSN 0268-3369 ; 0951-3078
    DOI 10.1038/s41409-018-0349-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Impact of Treatment Prior to Allogeneic Transplantation of Hematopoietic Stem Cells in Patients with Myelodysplastic Syndrome: Results of the Latin American Bone Marrow Transplant Registry.

    Duarte, Fernando Barroso / Moura, Anna Thawanny Gadelha / Funke, Vaneuza Araújo Moreira / Colturato, Virgílio Antônio Rensi / Hamerschlak, Nelson / Vilela, Neysimélia Costa / Lopes, Luiz Fernando / de Almeida Macedo, Maria Cristina Martins / Vigorito, Afonso Celso / de Almeida Soares, Rodolfo Daniel / Paz, Alessandra / Stevenazzi, Mariana / Diaz, Lilián / Neto, Abrahao Elias Hallack / Bettarello, Gustavo / de Gusmão, Breno Moreno / Salvino, Marco Aurélio / Calixto, Rodolfo Froes / Moreira, Maria Cláudia Rodrigues /
    Teixeira, Gustavo Machado / da Silva, Cinthya Corrêa / Simioni, Anderson João / Lemes, Romélia Pinheiro Gonçalves

    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation

    2020  Volume 26, Issue 5, Page(s) 1021–1024

    Abstract: It has been suggested that bridging therapy with intensive chemotherapy and/or hypomethylating agents followed by hematopoietic stem cell transplantation (HSCT) can be valuable in the treatment of patients with myelodysplastic syndromes (MDS). However, ... ...

    Abstract It has been suggested that bridging therapy with intensive chemotherapy and/or hypomethylating agents followed by hematopoietic stem cell transplantation (HSCT) can be valuable in the treatment of patients with myelodysplastic syndromes (MDS). However, the influence of this approach on HSCT outcomes remains poorly defined. Therefore, our objective was to investigate the influence of treatment before HSCT in patients with MDS. We retrospectively analyzed data from the Latin American registry of 258 patients from 17 Latin American centers who underwent HSCT from 1988 to 2019. Our data showed that there was pre-HSCT. We detected no significant difference regarding the impact on overall survival of treated and untreated patients before HSCT. Despite these data, the type of previous treatment among treated patients showed a significant difference in overall survival. Treatment with hypomethylating agents together with pre-HSCT chemotherapy seems to result in better survival of the studied population. These data correspond to the first results obtained through cooperative work between various centers in Latin America comparing the different approaches to patients and reflecting their reality and challenges. Therefore, the selection of pretransplant bridge therapy should be analyzed and focus given primarily to those approaches that result in better survival of patients with MDS.
    MeSH term(s) Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells ; Humans ; Latin America ; Myelodysplastic Syndromes/therapy ; Registries ; Retrospective Studies ; Transplantation, Homologous
    Language English
    Publishing date 2020-02-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1474865-4
    ISSN 1523-6536 ; 1083-8791
    ISSN (online) 1523-6536
    ISSN 1083-8791
    DOI 10.1016/j.bbmt.2020.01.030
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Photoclinic. Bullous Sweet syndrome in chronic myeloid leukemia.

    dos Santos, Vitorino Modesto / Nery, Natália Solon / Bettarello, Gustavo / Neiman, Israel Mauricio / de Brito, Flavia Campos / Souza, Cristiane Farias Ribeiro

    Archives of Iranian medicine

    2010  Volume 13, Issue 6, Page(s) 561–562

    MeSH term(s) Aged ; Female ; Humans ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive/complications ; Skin Diseases, Vesiculobullous/etiology ; Sweet Syndrome/etiology ; Sweet Syndrome/pathology
    Language English
    Publishing date 2010-11
    Publishing country Iran
    Document type Case Reports ; Journal Article
    ZDB-ID 2204979-4
    ISSN 1735-3947 ; 1029-2977
    ISSN (online) 1735-3947
    ISSN 1029-2977
    DOI 010136/AIM.0021
    Database MEDical Literature Analysis and Retrieval System OnLINE

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