Monocytes provide defense against infection and serve as progenitors for tissue macrophages and dendritic cells. Recruitment of monocytes to sites of infection begins with trafflcl
Our second aim i s to determine the Impact of GvHD on monocyte trafficking and to determine the role of Ly6Chi monocytes in the development of GvHD. We will aiso quantify inflammatory monocyte numbers in patients following allo-HSCT and correlate circulating monocyte levels with subsequent development of GvHD.
Our third aim addresses our hypothesis that changes in the intestinal microbota following allo-HSCT influence monocyte emigration from bone marrow. We will investigate changes in the intestinal microbiota during allo- HSCT using high-throughput 16S rDNA sequencing and correlate changes in the intestinal microbiota with circulating inflammatory monocyte levels and activation. The studies described in this project will identify in vivo mechanisms that drive reconstitution ofthe monocyte compartment and will define the role of the intestinal microbiota in re-establishing immune homeostasis following allo-HSCT.
Monocytes are a subset of blood cells that move from the bone marrow to tissues, where they can fight infections. The experiments we are proposing will determine which factors following bone marrow transplantation are important for optimal reconstitution of monocytes. These studies may lead to new approaches to minimize infections and graft versus host disease following transplantation.
|Staffas, Anna; Burgos da Silva, Marina; Slingerland, Ann E et al. (2018) Nutritional Support from the Intestinal Microbiota Improves Hematopoietic Reconstitution after Bone Marrow Transplantation in Mice. Cell Host Microbe 23:447-457.e4|
|Velardi, Enrico; Tsai, Jennifer J; Radtke, Stefan et al. (2018) Suppression of luteinizing hormone enhances HSC recovery after hematopoietic injury. Nat Med 24:239-246|
|Moskowitz, Craig H (2018) Should all patients with HL who relapse after ASCT be considered for allogeneic SCT? A consult, yes; a transplant, not necessarily. Blood Adv 2:821-824|
|Kim, Seong Jin; Huang, Yao-Ting; Foldi, Julia et al. (2018) Cytomegalovirus resistance in CD34+ -selected hematopoietic cell transplant recipients. Transpl Infect Dis 20:e12881|
|Maslak, Peter G; Dao, Tao; Bernal, Yvette et al. (2018) Phase 2 trial of a multivalent WT1 peptide vaccine (galinpepimut-S) in acute myeloid leukemia. Blood Adv 2:224-234|
|DeFilipp, Zachariah; Peled, Jonathan U; Li, Shuli et al. (2018) Third-party fecal microbiota transplantation following allo-HCT reconstitutes microbiome diversity. Blood Adv 2:745-753|
|Haak, Bastiaan W; Littmann, Eric R; Chaubard, Jean-Luc et al. (2018) Impact of gut colonization with butyrate-producing microbiota on respiratory viral infection following allo-HCT. Blood 131:2978-2986|
|Boudreau, Jeanette E; Hsu, Katharine C (2018) Natural Killer Cell Education and the Response to Infection and Cancer Therapy: Stay Tuned. Trends Immunol 39:222-239|
|Lin, Richard J; Ho, Caleb; Hilden, Patrick D et al. (2018) Allogeneic haematopoietic cell transplantation impacts on outcomes of mantle cell lymphoma with TP53 alterations. Br J Haematol :|
|Malard, Florent; Labopin, Myriam; Cho, Christina et al. (2018) Ex vivo and in vivo T cell-depleted allogeneic stem cell transplantation in patients with acute myeloid leukemia in first complete remission resulted in similar overall survival: on behalf of the ALWP of the EBMT and the MSKCC. J Hematol Oncol 11:127|
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