scholarly journals 357: Graft-Versus-Host Disease: A Minor-Mismatched Mouse Model with Gradual Progression from the Acute into the Chronic Phase

2008 ◽  
Vol 14 (2) ◽  
pp. 131
Author(s):  
A.M.S. Mueller ◽  
J.A. Allen ◽  
D. Miklos ◽  
J.A. Shizuru
Keyword(s):  
Mouse Model ◽  
Graft Versus Host Disease ◽  
Chronic Phase ◽  
Host Disease ◽  
Graft Versus Host ◽  
A Minor

scholarly journals Compound a Increases Cell Infiltration in Target Organs of Acute Graft-versus-Host Disease (aGVHD) in a Mouse Model

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4237
Author(s):  
Abdellatif Bouazzaoui ◽  
Ahmed A. H. Abdellatif ◽  
Faisal A. Al-Allaf ◽  
Neda M. Bogari ◽  
Mohiuddin M. Taher ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Mouse Model ◽  
Graft Versus Host Disease ◽  
Cell Infiltration ◽  
Compound A ◽  
Host Disease ◽  
Graft Versus Host ◽  
Target Organs ◽  
Acute Graft

Systemic steroids are used to treat acute graft-versus-host disease (aGVHD) caused by allogenic bone marrow transplantation (allo-BMT); however, their prolonged use results in complications. Hence, new agents for treating aGVHD are required. Recently, a new compound A (CpdA), with anti-inflammatory activity and reduced side effects compared to steroids, has been identified. Here, we aimed to determine whether CpdA can improve the outcome of aGVHD when administered after transplantation in a mouse model (C57BL/6 in B6D2F1). After conditioning with 9Gy total body irradiation, mice were infused with bone marrow (BM) cells and splenocytes from either syngeneic (B6D2F1) or allogeneic (C57BL/6) donors. The animals were subsequently treated (3 days/week) with 7.5 mg/kg CpdA from day +15 to day +28; the controls received 0.9% NaCl. Thereafter, the incidence and severity of aGVHD in aGVHD target organs were analyzed. Survival and clinical scores did not differ significantly; however, CpdA-treated animals showed high cell infiltration in the target organs. In bulk mixed lymphocyte reactions, CpdA treatment reduced the cell proliferation and expression of inflammatory cytokines and chemokines compared to controls, whereas levels of TNF, IL-23, chemokines, and chemokine receptors increased. CpdA significantly reduced proliferation in vitro but increased T cell infiltration in target organs.

Post‐transplant cyclophosphamide limits reactive donor T cells and delays the development of graft‐versus‐host disease in a humanised mouse model

Immunology ◽  
2021 ◽  
Author(s):  
Sam Raj Adhikary ◽  
Peter Cuthbertson ◽  
Leigh Nicholson ◽  
Katrina M. Bird ◽  
Chloe Sligar ◽  
...  
Keyword(s):  
T Cells ◽  
Mouse Model ◽  
Graft Versus Host Disease ◽  
Host Disease ◽  
Graft Versus Host ◽  
Post Transplant ◽  
Donor T Cells

scholarly journals Protective effect of neutralizing anti-IL-18α monoclonal antibody on a mouse model of acute graft-versus-host disease

2015 ◽  
Vol 34 (4) ◽  
pp. 2031-2039 ◽  
Author(s):  
XIAOCUI LI ◽  
CUIPING ZHANG ◽  
WEI CHEN ◽  
BIN PAN ◽  
FANYUN KONG ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Mouse Model ◽  
Protective Effect ◽  
Graft Versus Host Disease ◽  
Host Disease ◽  
Graft Versus Host ◽  
Acute Graft

scholarly journals Influence of acute and chronic graft-versus-host disease on relapse and survival after bone marrow transplantation from HLA-identical siblings as treatment of acute and chronic leukemia [published erratum appears in Blood 1989 Aug 15;74(3):1180]

Blood ◽  
1989 ◽  
Vol 73 (6) ◽  
pp. 1720-1728 ◽  
Author(s):  
KM Sullivan ◽  
PL Weiden ◽  
R Storb ◽  
RP Witherspoon ◽  
A Fefer ◽  
...  
Keyword(s):  
Graft Versus Host Disease ◽  
Marrow Transplantation ◽  
Acute Gvhd ◽  
Blast Crisis ◽  
Chronic Gvhd ◽  
Chronic Phase ◽  
Lymphocytic Leukemia ◽  
Myelogenous Leukemia ◽  
Host Disease ◽  
Graft Versus Host

Abstract To assess the influence of graft-versus-host disease (GVHD) on recurrent leukemia and survival after allogeneic marrow transplantation, we studied 1,202 patients with acute nonlymphocytic leukemia (ANL), acute lymphocytic leukemia (ALL), and chronic myelogenous leukemia (CML) given unmodified marrow grafts from HLA- identical siblings. Proportional hazards regression models using acute GVHD and chronic GVHD as time-dependent covariates demonstrated a significant association of GVHD with a decreased relative risk (RR, 0.33 to 0.42) of relapse in patients with ANL, ALL, and CML transplanted in advanced disease. Among patients developing either acute or chronic GVHD, treatment failure (that is, mortality or relapse) was decreased in patients with ALL transplanted in relapse (RR = 0.70, P less than .033) and CML in blast crisis (RR = 0.37, P less than .009). This effect was independent of age, sex, preparative regimen, GVHD prophylaxis, or length of follow-up. Five-year actuarial estimates were derived for the subset of 657 patients who survived in remission 150 days after transplant and were at risk for development of chronic GVHD. Among patients with ANL in first remission or CML in chronic phase, GVHD had an adverse effect on survival and no apparent influence on relapse. Among patients with ANL and ALL transplanted in relapse, the probability of relapse after day 150 was 74% without [corrected] GVHD, 45% with acute and chronic GVHD, 35% with [corrected] only acute GVHD, and 34% with only chronic GVHD (P less than .001). Actuarial survival in these four GVHD groups was 25%, 34%, 59%, and 62%, respectively (P less than .009). Among patients with CML in acceleration or blast crisis, the probability of relapse after day 150 was 65% without GVHD and 36% with acute and/or chronic GVHD (P less than .017). We conclude that acute and chronic GVHD were associated with a durable antileukemic effect and improved survival in patients transplanted in advanced stages of ALL and CML.

Inhibition of phosphodiesterase 4 (PDE4) reduces dermal fibrosis by interfering with the release of interleukin-6 from M2 macrophages

2017 ◽  
Vol 76 (6) ◽  
pp. 1133-1141 ◽  
Author(s):  
Christiane Maier ◽  
Andreas Ramming ◽  
Christina Bergmann ◽  
Rita Weinkam ◽  
Nicolai Kittan ◽  
...  
Keyword(s):  
Mouse Model ◽  
Graft Versus Host Disease ◽  
Interleukin 6 ◽  
Skin Fibrosis ◽  
M2 Macrophages ◽  
Preclinical Models ◽  
Host Disease ◽  
Graft Versus Host ◽  
Fibroblast Activation ◽  
Phosphodiesterase 4

ObjectivesTo investigate the disease-modifying effects of phosphodiesterase 4 (PDE4) inhibition in preclinical models of systemic sclerosis (SSc).MethodsWe studied the effects of PDE4 inhibition in a prevention and a treatment model of bleomycin-induced skin fibrosis, in the topoisomerase mouse model as well as in a model of sclerodermatous chronic graft-versus-host disease. To better understand the mode of action of PDE4 blockade in preclinical models of SSc, we investigated fibrosis-relevant mediators in fibroblasts and macrophages from healthy individuals and patients suffering from diffuse-cutaneous SSc on blockade of PDE4.ResultsSpecific inhibition of PDE4 by rolipram and apremilast had potent antifibrotic effects in bleomycin-induced skin fibrosis models, in the topoisomerase I mouse model and in murine sclerodermatous chronic graft-versus-host disease. Fibroblasts were not the direct targets of the antifibrotic effects of PDE4 blockade. Reduced leucocyte infiltration in lesional skin on PDE4 blockade suggested an immune-mediated mechanism. Further analysis revealed that PDE4 inhibition decreased the differentiation of M2 macrophages and the release of several profibrotic cytokines, resulting in reduced fibroblast activation and collagen release. Within these profibrotic mediators, interleukin-6 appeared to play a central role.ConclusionsPDE4 inhibition reduces inflammatory cell activity and the release of profibrotic cytokines from M2 macrophages, leading to decreased fibroblast activation and collagen release. Importantly, apremilast is already approved for the treatment of psoriasis and psoriatic arthritis. Therefore, PDE4 inhibitors might be further developed as potential antifibrotic therapies for patients with SSc. Our findings suggest that particularly patients with inflammation-driven fibrosis might benefit from PDE4 blockade.

scholarly journals Influence of acute and chronic graft-versus-host disease on relapse and survival after bone marrow transplantation from HLA-identical siblings as treatment of acute and chronic leukemia [published erratum appears in Blood 1989 Aug 15;74(3):1180]

Blood ◽  
1989 ◽  
Vol 73 (6) ◽  
pp. 1720-1728 ◽  
Author(s):  
KM Sullivan ◽  
PL Weiden ◽  
R Storb ◽  
RP Witherspoon ◽  
A Fefer ◽  
...  
Keyword(s):  
Graft Versus Host Disease ◽  
Marrow Transplantation ◽  
Acute Gvhd ◽  
Blast Crisis ◽  
Chronic Gvhd ◽  
Chronic Phase ◽  
Lymphocytic Leukemia ◽  
Myelogenous Leukemia ◽  
Host Disease ◽  
Graft Versus Host

To assess the influence of graft-versus-host disease (GVHD) on recurrent leukemia and survival after allogeneic marrow transplantation, we studied 1,202 patients with acute nonlymphocytic leukemia (ANL), acute lymphocytic leukemia (ALL), and chronic myelogenous leukemia (CML) given unmodified marrow grafts from HLA- identical siblings. Proportional hazards regression models using acute GVHD and chronic GVHD as time-dependent covariates demonstrated a significant association of GVHD with a decreased relative risk (RR, 0.33 to 0.42) of relapse in patients with ANL, ALL, and CML transplanted in advanced disease. Among patients developing either acute or chronic GVHD, treatment failure (that is, mortality or relapse) was decreased in patients with ALL transplanted in relapse (RR = 0.70, P less than .033) and CML in blast crisis (RR = 0.37, P less than .009). This effect was independent of age, sex, preparative regimen, GVHD prophylaxis, or length of follow-up. Five-year actuarial estimates were derived for the subset of 657 patients who survived in remission 150 days after transplant and were at risk for development of chronic GVHD. Among patients with ANL in first remission or CML in chronic phase, GVHD had an adverse effect on survival and no apparent influence on relapse. Among patients with ANL and ALL transplanted in relapse, the probability of relapse after day 150 was 74% without [corrected] GVHD, 45% with acute and chronic GVHD, 35% with [corrected] only acute GVHD, and 34% with only chronic GVHD (P less than .001). Actuarial survival in these four GVHD groups was 25%, 34%, 59%, and 62%, respectively (P less than .009). Among patients with CML in acceleration or blast crisis, the probability of relapse after day 150 was 65% without GVHD and 36% with acute and/or chronic GVHD (P less than .017). We conclude that acute and chronic GVHD were associated with a durable antileukemic effect and improved survival in patients transplanted in advanced stages of ALL and CML.

scholarly journals A novel mouse model of acute graft-versus-host disease based on chemotherapy conditioning and G-CSF mobilized graft

2019 ◽  
Vol 55 (3) ◽  
pp. 570-577
Author(s):  
Yishan Ye ◽  
Laure Ricard ◽  
Nicolas Stocker ◽  
Mohamad Mohty ◽  
Béatrice Gaugler ◽  
...  
Keyword(s):  
Mouse Model ◽  
Graft Versus Host Disease ◽  
Host Disease ◽  
Graft Versus Host ◽  
Acute Graft
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