PURPOSE OF REVIEW: Successful immune reconstitution is important for decreasing posthematopoietic cell transplant (post-HCT) infections, relapse, and secondary malignancy, without increasing graft-versus-host disease (GVHD). Here we review how different parts of the immune system recover, and the relationship between recovery and clinical outcomes. RECENT FINDINGS: Innate immunity (e.g., neutrophils, natural killer cells) recovers within weeks, whereas adaptive immunity (B and T cells) recovers within months to years. This has been known for years; however, more recently, the pattern of recovery of additional immune cell subsets has been described. The role of these subsets in transplant complications like infections, GVHD and relapse is becoming increasingly recognized, as gleaned from studies of the association between subset counts or function and complications/outcomes, and from studies depleting or adoptively transferring various subsets. SUMMARY: Lessons learned from observational studies on immune reconstitution are leading to new strategies to prevent or treat posttransplant infections. Additional knowledge is needed to develop effective strategies to prevent or treat relapse, second malignancies and GVHD.
PURPOSE OF REVIEW: Successful immune reconstitution is important for decreasing posthematopoietic cell transplant (post-HCT) infections, relapse, and secondary malignancy, without increasing graft-versus-host disease (GVHD). Here we review how different parts of the immune system recover, and the relationship between recovery and clinical outcomes. RECENT FINDINGS: Innate immunity (e.g., neutrophils, natural killer cells) recovers within weeks, whereas adaptive immunity (B and T cells) recovers within months to years. This has been known for years; however, more recently, the pattern of recovery of additional immune cell subsets has been described. The role of these subsets in transplant complications like infections, GVHD and relapse is becoming increasingly recognized, as gleaned from studies of the association between subset counts or function and complications/outcomes, and from studies depleting or adoptively transferring various subsets. SUMMARY: Lessons learned from observational studies on immune reconstitution are leading to new strategies to prevent or treat posttransplant infections. Additional knowledge is needed to develop effective strategies to prevent or treat relapse, second malignancies and GVHD.
Authors: E Mimiola; O Marini; O Perbellini; A Micheletti; W Vermi; S Lonardi; C Costantini; E Meneghelli; A Andreini; C Bonetto; A Vassanelli; M Cantini; E Zoratti; D Massi; A Zamo'; A Leso; G Quaresmini; F Benedetti; G Pizzolo; M A Cassatella; C Tecchio Journal: Clin Exp Immunol Date: 2014-10 Impact factor: 4.330
Authors: Sabine Ivison; Mehrnoush Malek; Rosa V Garcia; Raewyn Broady; Anne Halpin; Manon Richaud; Rollin F Brant; Szu-I Wang; Mathieu Goupil; Qingdong Guan; Peter Ashton; Jason Warren; Amr Rajab; Simon Urschel; Deepali Kumar; Mathias Streitz; Birgit Sawitzki; Stephan Schlickeiser; Janetta J Bijl; Donna A Wall; Jean-Sebastien Delisle; Lori J West; Ryan R Brinkman; Megan K Levings Journal: JCI Insight Date: 2018-12-06
Authors: Louise E Hogan; Christian Körner; Kristen Hobbs; Camille R Simoneau; Cassandra Thanh; Erica A Gibson; Christine D Palmer; Alisha Pandit; Francisco M Marty; Daniel R Kuritzkes; Stephanie Jost; Jerome Ritz; Timothy J Henrich Journal: Blood Adv Date: 2018-06-26
Authors: Javier Bolaños-Meade; Juan Wu; Brent R Logan; John E Levine; Vincent T Ho; Amin M Alousi; Daniel J Weisdorf; Leo Luznik Journal: Biol Blood Marrow Transplant Date: 2012-12-12 Impact factor: 5.742