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Monitoring
of CMV-specific T-cells following tolerance induction
protocols - A safety approach
Principal Investigator: Florian Kern, Institut
für Medizinische Immunologie, Berlin, Germany
Abstract | Investigators
| News | Background
| Resources
Abstract
A manipulation of the immune system of a transplant
recipient in such a way that foreign tissue is not
rejected is bound to affect important defense mechanisms,
including protection against viruses, bacteria and
fungi. Based on previous experience with conventional
immunosuppressive drugs, viral defenses seem most crippled
in the immunosuppressed patient. The loss of anti-viral
defense mechanisms could potentially be very dangerous
and result in severe pathology.
This study employs a rapid laboratory test that would
enable the transplant physicians to look at the patient's
immune response to a model virus – human Cytomegalovirus
(CMV). Chosen for its prevalence in transplant patients,
CMV may cause severe clinical complications and even
death. This protocol has been modified from the Central
European original to allow U.S. study participants,
including the numerous American ethnicities who may
not recognize the virus
in the same way as Caucasians. The protocol
also includes an approach to testing the efficiency
of tolerization protocols and the development of a
new laboratory test that could be useful in identifying
the nature of an immune response to the virus, and
answer more precisely if the immune system would be
able to destroy virally infected cells.
The approach suggested in this study is unique in
that is blood-saving, cost-saving, simple to perform
and
rapid. Successful use of this test within the ITN
may result in the development of a laboratory test
that
can predict the necessity of specific anti-viral
chemotherapy before the onset of symptoms.
Participating
Investigators

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Florian Kern, Institute
for Medical Immunology, Berlin, Germany |
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Petra
Reinke, Institute for Medical Immunology,
Berlin, Germany |
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Hans-Dieter Volk,
Institute for Medical Immunology, Berlin, Germany
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Cliona Rooney,
Baylor College of Medicine, Houston, TX |
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Andreas
Radbruch, German Rheumatism Research
Center (DRFZ), Berlin, Germany |
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Jens Schneider-Mergener,
Institute for Medical Immunology, Berlin, Germany
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News
& Recent Developments

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Cytomegalovirus
(CMV) Phosphoprotein 65 Makes a Large Contribution
to Shaping the T Cell Repertoire in CMV-Exposed
Individuals - J Infect Dis [go ] |
Background
Articles

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Measurement
of Anti-Human Cytomegalovirus T Cell Reactivity
in Transplant Recipients and Its Potential Clinical
Use: A Mini-Review - Intervirology [go ] |
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Target structures
of the CD8(+)-T-cell response to human cytomegalovirus
- J Virol [go ]
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Resources
& Interesting Links

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Infections
in organ transplantation [go ] |
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