One-two punch injury to tolerance mechanisms in graft-versus-host disease

Graft Versus Host Disease

Commonly referred to as GVHD, graft-versus-host disease is a man-made condition that arises when patients are transplanted with donor tissue that is not identical to their own. Transplants from other individuals are called allogeneic (‘allo’ meaning ‘other’ and ‘geneic’ referring to ‘genes’). GVHD occurs after hematopoietic stem cell or bone marrow transplantation but is most commonly experienc...

Graft versus Host Disease

Definition Graft-versus-host disease (GVHD) is the most common complication of allogeneic hematopoietic stem cell transplantation (HSCT). In HSCT, the patient’s bone marrow is destroyed with chemotherapy and/or radiation and replaced by donor hematopoietic stem cells. In allogeneic HSCT the donor is usually a close family member or occasionally someone outside the family who has been found to b...

Graft-versus-host disease or graft-versus-host-like syndrome.

Cellular and molecular mechanisms of graft-versus-host disease.

Graft-versus-host disease is a complication in patients undergoing hematopoietic stem cell transplantation. Graft-versus-host disease includes acute graft-versus-host disease and chronic graft-versus-host disease. Host APCs (e.g., dendritic cells and macrophages), effector T cells (e.g., Th1, Th17, and abnormal Th17:regulatory T cell ratio), B cells, and NK cells are implicated in graft-versus-...

Pathogenic mechanisms of Acute Graft versus Host Disease

Graft Versus Host Disease (GVHD) is a life threatening complication of allogeneic bone marrow transplantation (BMT), an important therapy for a number of hematologic diseases. In its acute phase, GVHD involves activation of proinflammatory cytokine cascades and immune effector cells that result in target tissue damage (1, 2). Multiple cellular populations and cytokines interact in a complex pro...