scholarly journals In vivo T-cell clonal amplification at time of acute graft-versus-host disease

Blood ◽  
1994 ◽  
Vol 84 (8) ◽  
pp. 2815-2820 ◽  
Author(s):  
PY Dietrich ◽  
A Caignard ◽  
A Lim ◽  
V Chung ◽  
JL Pico ◽  
...  

Abstract In a series of patients transplanted with HLA-matched allogeneic bone marrow grafts (alloBMT), we previously showed that a few T-cell receptor (TCR) V alpha and V beta gene segment transcripts were overexpressed in skin compared with blood at the time of acute graft- versus-host disease (aGVHD). Here, in one selected patient with overexpressed V beta 16 and V alpha 11 transcripts in skin, we analyzed the junctional variability of these transcripts in donor blood, patient blood, and skin collected at aGVHD onset. A unique junctional region sequence accounted for 81% of in frame V beta 16 transcripts (13 of 16) in skin and 59% (13 of 22) in patient blood. Similarly, two recurrent junctional region sequences were found in skin V alpha 11 transcripts, one accounting for 66% (21 of 32) and the other for 16% (5 of 32). These recurrences were also found in patient blood (36% and 15% of V alpha 11 transcripts, respectively). To extend our analysis, a polymerase chain reaction (PCR)-based method was used to precisely determine TCR beta transcript length in run-off reactions using uncloned bulk cDNA samples. All V beta-C beta PCR products analyzed in donor blood, as well as the majority of those analyzed in patient blood, included transcripts with highly diverse junctional region sizes. As expected from the sequence data, most V beta 16-C beta PCR products in skin and patient blood were of the same size (ie, same junctional region). In addition, V beta 3, V beta 5, and V beta 17 transcripts in skin were shown to display highly restricted size variability. The clonality of the V beta 16-C beta and V beta 17-C beta transcripts was further supported by the results of run-off reactions using 13 J beta specific primers. We have identified several recurrent TCR transcripts in skin, some of them also present in patient blood. These data support the view that several T-cell subpopulations are clonally expanded in vivo at the time of aGVHD onset in this case of related HLA-matched alloBMT.

Blood ◽  
1994 ◽  
Vol 84 (8) ◽  
pp. 2815-2820 ◽  
Author(s):  
PY Dietrich ◽  
A Caignard ◽  
A Lim ◽  
V Chung ◽  
JL Pico ◽  
...  

In a series of patients transplanted with HLA-matched allogeneic bone marrow grafts (alloBMT), we previously showed that a few T-cell receptor (TCR) V alpha and V beta gene segment transcripts were overexpressed in skin compared with blood at the time of acute graft- versus-host disease (aGVHD). Here, in one selected patient with overexpressed V beta 16 and V alpha 11 transcripts in skin, we analyzed the junctional variability of these transcripts in donor blood, patient blood, and skin collected at aGVHD onset. A unique junctional region sequence accounted for 81% of in frame V beta 16 transcripts (13 of 16) in skin and 59% (13 of 22) in patient blood. Similarly, two recurrent junctional region sequences were found in skin V alpha 11 transcripts, one accounting for 66% (21 of 32) and the other for 16% (5 of 32). These recurrences were also found in patient blood (36% and 15% of V alpha 11 transcripts, respectively). To extend our analysis, a polymerase chain reaction (PCR)-based method was used to precisely determine TCR beta transcript length in run-off reactions using uncloned bulk cDNA samples. All V beta-C beta PCR products analyzed in donor blood, as well as the majority of those analyzed in patient blood, included transcripts with highly diverse junctional region sizes. As expected from the sequence data, most V beta 16-C beta PCR products in skin and patient blood were of the same size (ie, same junctional region). In addition, V beta 3, V beta 5, and V beta 17 transcripts in skin were shown to display highly restricted size variability. The clonality of the V beta 16-C beta and V beta 17-C beta transcripts was further supported by the results of run-off reactions using 13 J beta specific primers. We have identified several recurrent TCR transcripts in skin, some of them also present in patient blood. These data support the view that several T-cell subpopulations are clonally expanded in vivo at the time of aGVHD onset in this case of related HLA-matched alloBMT.


Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 582-582 ◽  
Author(s):  
Andreas Beilhack ◽  
Stephan Schulz ◽  
Jeanette Baker ◽  
Georg F. Beilhack ◽  
Ryosei Nishimura ◽  
...  

Abstract Acute graft-versus-host disease (aGVHD) results from alloreactive donor derived T cells attacking targets in the gastrointestinal tract, liver and skin. We observed the initiation and rapid kinetics of aGVHD in a murine model [FVB/N (H-2q) into irradiated Balb/c (H-2d)] using in vivo bioluminescence imaging. The transition from the initiation to the effector phase of aGVHD (day 3–4) was characterized by rapid T cell proliferation and upregulation of gut homing receptors alpha4beta7, alphaEbeta7 and CCR9 on alloreactive T cells in Peyer’s patches (PP), mesenteric lymph nodes (LN) and spleen, but not peripheral LNs. Therefore we asked whether the lack of specific lymphoid priming sites would lead to decreased alloreactive T cell infiltration in the gut compared to the liver and skin. Using PP deficient mice, we observed that mesenteric LN and spleen compensate for the lack of PP as alloreactive priming sites. Transplantation of PP and LN deficient mice (TNFalpha-/-) showed that the spleen alone was sufficient to cause the complete profile of aGVHD with a time course similar to that of wildtype mice. Splenectomized mice with intact secondary lymphoid organs also developed aGVHD. Strikingly, treatment of splenectomized recipients with blocking antibodies against the lymphoid homing receptors L-selectin and MAdCAM-1 prevented GVHD with 100% survival (>120 d, p<0.0001). Our study shows that multiple priming sites are involved in GVHD initiation, the spleen compensating for the lack of PP and mesenteric LN, and vice versa. In contrast, splenectomy and antibody blocking resulted in a clear survival benefit for all recipients.


2013 ◽  
Vol 19 (11) ◽  
pp. 1638-1649 ◽  
Author(s):  
Divya T. Koura ◽  
John T. Horan ◽  
Amelia A. Langston ◽  
Muna Qayed ◽  
Aneesh Mehta ◽  
...  

Blood ◽  
2006 ◽  
Vol 109 (5) ◽  
pp. 2225-2233 ◽  
Author(s):  
Robert Zeiser ◽  
Vu H. Nguyen ◽  
Jing-Zhou Hou ◽  
Andreas Beilhack ◽  
Elizabeth Zambricki ◽  
...  

Abstract Murine CD4+CD25+ regulatory T cells (Treg cells) reduce acute graft-versus-host disease (aGvHD). However, surface molecules critical for suppression are unclear. Deficiency of CD30 (CD30−/−) leads to impaired thymic negative selection and augmented T-cell autoreactivity. Therefore, we investigated the role of CD30 signaling in Treg-cell function during aGvHD. Treg cells derived from CD30−/− animals were significantly less effective in preventing aGvHD lethality. Early blockade of the CD30/CD153 pathway with a neutralizing anti-CD153 mAb reduced Treg-mediated protection from proinflammatory cytokine accumulation and donor-type T-cell apoptosis. In vivo bioluminescence imaging demonstrated intact homing but reduced expansion of luciferase-expressing Treg cells when CD153 was blocked during the early phase after adoptive transfer. CD30 surface expression on Treg cells increased with alloantigen exposure, and CD153 expression on recipient-type dendritic cells increased in the presence of a proinflammatory environment. These data demonstrate that early CD30 signaling is critical for Treg-mediated aGvHD protection after major MHC-mismatch bone marrow transplantation.


Blood ◽  
2008 ◽  
Vol 112 (10) ◽  
pp. 4328-4336 ◽  
Author(s):  
Niklas Beyersdorf ◽  
Xin Ding ◽  
Gregor Blank ◽  
Kevin M. Dennehy ◽  
Thomas Kerkau ◽  
...  

Abstract We studied the role of CD28 in T-cell biology and T cell–mediated pathology using a novel mouse anti–mouse CD28 antibody, E18, which recognizes an epitope close to the B7 binding site. In vitro, this antibody completely blocked binding of B7 molecules to CD28 expressed on mouse thymocytes but enhanced anti-CD3–induced proliferation of peripheral T cells. Injections of E18 monoclonal antibody into normal BALB/c mice in vivo, however, led to a reversible reduction in Treg cell frequencies among CD4+ cells, both in the thymus and in secondary lymphoid organs, suggesting that E18 acted as an inhibitor of CD28 signaling under these conditions. Antagonistic activity of E18 in vivo was further implied by suppressed responses of conventional CD4+ T cells to stimulation with the superantigen staphylococcal enterotoxin B and in a model of acute graft-versus-host disease. In contrast to healthy mice, intact monoclonal antibody E18, but not its nonstimulatory Fab fragment, increased the frequencies of Treg cells among CD4+ T cells in these pro-inflammatory settings allowing for efficacious protection from acute graft-versus-host disease. Thus, the agonistic signal generated by conventional, ie, nonsuperagonistic, anti-CD28 antibodies is important for their immunotherapeutic potential in vivo.


1999 ◽  
Vol 27 (12) ◽  
pp. 1815-1821 ◽  
Author(s):  
Ichiro Takakura ◽  
Miharu Yabe ◽  
Yuko Kato ◽  
Masae Matsumoto ◽  
Hiromasa Yabe ◽  
...  

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