T Cell Validation Study Using Blood Samples From Subjects With Recent Onset Type 1 Diabetes Mellitus
A Comparative Study Between the Cytokine Elispot, Tetramer, Immunoblot, and T Cell Proliferation Assays Using Fresh Blood Samples From Subjects With Recent Onset Type 1 Diabetes Mellitus
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
The T Cell Validation Study is designed to determine the ability of T cell assays to identify differences in responses from participants with type 1 diabetes compared to normal control subjects, and to compare four different laboratory tests which examine T cells to determine whether the measurements are quantitatively reproducible.
Antibody assays that confirm the presence of type 1 diabetes will be evaluated including: Diabetes Biochemical Autoantibody Assay (anti-GAD65, anti-ICA512, anti-insulin) and Islet Cell Autoantibody testing; genetic testing (deoxyribonucleic acid [DNA] and human leukocyte antigen [HLA]) will also be done to learn more about the T cell assays.
The following T Cell Assays will be conducted in individuals with type 1 diabetes, as well as those without type 1 diabetes:
- Cellular Immunoblot Testing
- T Cell Proliferation Assay
- Tetramer Assay
- Cytokine ELISpot Assay
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Kontakter og lokationer
Studiesteder
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Bristol, Det Forenede Kongerige, BS10 5NB
- University of Bristol
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California
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Los Angeles, California, Forenede Stater, 90027
- Childrens Hospital of Los Angeles
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San Francisco, California, Forenede Stater, 94143-0136
- University of California, San Francisco
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Stanford, California, Forenede Stater, 94305-5208
- Stanford University Medical Center
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Colorado
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Denver, Colorado, Forenede Stater, 80010
- Barbara Davis Center for Childhood Diabetes
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Florida
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Gainesville, Florida, Forenede Stater, 32608
- University of Florida
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Miami, Florida, Forenede Stater, 33136
- University of Miami School of Medicine
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Indiana
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Indianapolis, Indiana, Forenede Stater, 46202
- Riley Hospital for Children
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Massachusetts
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Boston, Massachusetts, Forenede Stater, 02215
- Joslin Diabetes Center
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Minnesota
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Minneapolis, Minnesota, Forenede Stater, 55455
- University of Minnesota
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New York
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New York, New York, Forenede Stater, 10032
- Naomi Berrie Diabetes Center, Columbia University
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Pennsylvania
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Pittsburgh, Pennsylvania, Forenede Stater, 15213
- Children's Hospital of Pittsburgh of UPMC
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Texas
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Dallas, Texas, Forenede Stater, 75235
- University of Texas Southwestern Medical Center at Dallas
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Washington
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Seattle, Washington, Forenede Stater, 98101
- Benaroya Research Institute at Virginia Mason
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
To be eligible, individuals with type 1 diabetes must be:
- Diagnosed with type 1 diabetes within one year of first study visit
- 8-35 years of age at time of first visit
- Weigh > 40 kg (88 lbs) at time of first visit
- Individuals who will serve as control subjects who do not have type 1 diabetes cannot have a first degree or second degree relative with type 1 diabetes.
Exclusion Criteria:
Individuals must not:
- Have any major illness
- Be taking any steroid medications
- If female, should not be pregnant or breastfeeding.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Studiestol: Jay E Skyler, MD, Type 1 Diabetes TrialNet Study Chairman
Publikationer og nyttige links
Generelle publikationer
- Arif S, Tree TI, Astill TP, Tremble JM, Bishop AJ, Dayan CM, Roep BO, Peakman M. Autoreactive T cell responses show proinflammatory polarization in diabetes but a regulatory phenotype in health. J Clin Invest. 2004 Feb;113(3):451-63. doi: 10.1172/JCI19585.
- Bensoussan D, Passa P, Canivet J, Levy-Toledano S, Caen J. [Letter: platelet aggregation and assay of Willebrand factor during diabetes mellitus]. Nouv Presse Med. 1975 Jan 18;4(3):195. No abstract available. French.
- Miyazaki I, Cheung RK, Gaedigk R, Hui MF, Van der Meulen J, Rajotte RV, Dosch HM. T cell activation and anergy to islet cell antigen in type I diabetes. J Immunol. 1995 Feb 1;154(3):1461-9.
- Nagata M, Kotani R, Moriyama H, Yokono K, Roep BO, Peakman M. Detection of autoreactive T cells in type 1 diabetes using coded autoantigens and an immunoglobulin-free cytokine ELISPOT assay: report from the fourth immunology of diabetes society T cell workshop. Ann N Y Acad Sci. 2004 Dec;1037:10-5. doi: 10.1196/annals.1337.002.
- Peakman M, Tree TI, Endl J, van Endert P, Atkinson MA, Roep BO; Second International Immunology of Diabetes Society Workshop for Standardization ot T-cell Assays in Type 1 Diabetes. Characterization of preparations of GAD65, proinsulin, and the islet tyrosine phosphatase IA-2 for use in detection of autoreactive T-cells in type 1 diabetes: report of phase II of the Second International Immunology of Diabetes Society Workshop for Standardization of T-cell assays in type 1 diabetes. Diabetes. 2001 Aug;50(8):1749-54. doi: 10.2337/diabetes.50.8.1749.
- Reijonen H, Mallone R, Heninger AK, Laughlin EM, Kochik SA, Falk B, Kwok WW, Greenbaum C, Nepom GT. GAD65-specific CD4+ T-cells with high antigen avidity are prevalent in peripheral blood of patients with type 1 diabetes. Diabetes. 2004 Aug;53(8):1987-94. doi: 10.2337/diabetes.53.8.1987.
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- Tcell (IND) (completed)
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