Anti-idiotype antisera were raised in rabbits to two monoclonal antibodies, Fd-1 and Fd-2, with specificity for each of the two antigenic epitopes found on the ferredoxin (Fd) molecule. The anti-idiotype antisera (anti-Fd-1 and anti-Fd-2) were used to demonstrate that one of the idiotypes (Fd-1) was expressed at significant levels in most anti-Fd antisera raised in BIO.BR mice while the second idiotype (Fd-2) was infrequently expressed. Examination of anti-Fd sera raised in other mouse strains demonstrated that expression of the Fd-1 idiotype mapped to the IgH gene complex and was found in the antisera of all mouse strains examined with the Ig-1[sup=b] allotype. When splenocytes from Fd-immune B10.BR mice were treated with anti-Fd-1 and transferred to irradiated syngeneic recipients, the adoptive secondary response was significantly higher in animals receiving treated cells as opposed to control animals which received normal rabbit serum treated cells. This response produced a net increase in antibody to both epitopes and the relative amount of Fd-1 idiotope was not significantly altered. Further studies with separated cell populations showed that the overall increase of anti-Fd antibody produced was attributable to the effects of the anti-idiotypic serum on a population(s) of T cells. Treatment of mice with the Fd-1 monoclonal antibody (which should react with anti-idiotypic cells) had an analogous effect to that of the anti-idiotype. Treated mice produced heightened levels of antibodies directed to both epitopes of Fd. Treatment of mice with second anti-idiotype, anti-Fd-2, was found to enhance the anti-Fd response of B10.BR mice and abrogate the non-responder status of DBA/2 mice. Additional evidence indicates that the Fd-2 idiotype could be expressed on a suppressor cell population which may be a predominant regulatory element in both BIO.BR and DBA/2 mice. / Science, Faculty of / Microbiology and Immunology, Department of / Graduate

Tsang Kam Sze, Kent. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1992. / Includes bibliographical references (leaves 155-174). / Abstract --- p.i / Acknowledgements --- p.v / List of Abbreviations --- p.viii / Table of Contents --- p.x / List of Figures --- p.xvi / List of Tables --- p.ixx / Chapter Chapter 1. --- Introduction --- p.1 / Chapter 1.1. --- Idiotype Network --- p.2 / Chapter 1.2. --- Anti-idiotype Classification --- p.8 / Chapter 1.3. --- Blood Transfusion Effect --- p.11 / Chapter 1.4. --- Transfusion Protocol --- p.12 / Chapter 1.5. --- Mechanism of Beneficial Transfusion Effect --- p.15 / Chapter 1.5.1. --- Donor Selection --- p.15 / Chapter 1.5.2. --- Clonal Deletion --- p.16 / Chapter 1.5.3. --- Suppressor Cells Induction --- p.18 / Chapter 1.5.4. --- Prostaglandins Mediation --- p.19 / Chapter 1.5.5. --- Mixed Chimerism Motivation --- p.20 / Chapter 1.5.6. --- Fc-receptor Blocking Antibodies Stimulation --- p.22 / Chapter 1.5.7. --- Anti-idiotypic Antibodies Instigation --- p.23 / Chapter 1.6. --- Study Aims --- p.25 / Chapter 1.7. --- Technical Strategy --- p.26 / Chapter Chapter 2. --- Materials and Methods --- p.30 / Chapter 2.1. --- Materials --- p.31 / Chapter 2.1.1. --- Patient Population --- p.31 / Chapter 2.1.2. --- Normal Control Group --- p.31 / Chapter 2.1.3. --- Serum Samples --- p.32 / Chapter 2.1.4. --- Additional Specimens --- p.32 / Chapter 2.1.5. --- Chemicals --- p.32 / Chapter 2.1.6. --- Antisera --- p.34 / Chapter 2.1.7. --- Buffers --- p.35 / Chapter 2.1.8. --- Consumables --- p.38 / Chapter 2.1.9. --- Apparatus and Equipment --- p.39 / Chapter 2.2. --- Methods --- p.40 / Chapter 2.2.1. --- Purification of Human Polyclonal Anti-HLA Antisera --- p.40 / Chapter 2.2.1.1. --- Affinity Chromatography --- p.41 / Chapter 2.2.1.2. --- Dialysis --- p.41 / Chapter 2.2.1.3. --- Concentration --- p.42 / Chapter 2.2.1.4. --- Quantitation --- p.42 / Chapter 2.2.2. --- Generation of F(ab')2 fragments from the Purified Human Anti-HLA Antibodies --- p.42 / Chapter 2.2.2.1. --- Buffer Exchange --- p.43 / Chapter 2.2.2.2. --- Pepsin Digestion --- p.43 / Chapter 2.2.2.3. --- Purification of (ab')2、 --- p.43 / Chapter 2.2.3. --- Enzyme-Linked Immunosorbent Assay for anti-Idiotypes against anti-HLA antibodies --- p.44 / Chapter 2.2.3.1. --- Optimization --- p.44 / Chapter 2.2.3.2. --- Quality Control --- p.45 / Chapter 2.2.3.2.1. --- F(ab')2 Specificity --- p.45 / Chapter 2.2.3.2.2. --- Fc Contamination --- p.46 / Chapter 2.2.3.2.3. --- Precision Test --- p.47 / Chapter 2.2.4. --- Anti-Casein Interference --- p.47 / Chapter 2.2.5. --- Test Protocol --- p.48 / Chapter 2.3. --- Statistical Analysis --- p.48 / Chapter Chapter 3. --- Purification of Anti-HLA IgG and F(ab')2 --- p.50 / Chapter 3.1. --- Immunoglobulin Concentration --- p.51 / Chapter 3.2. --- F(ab')2 Specificity --- p.51 / Chapter 3.3. --- Fc-fragments Contamination --- p.53 / Chapter 3.4. --- Discussion --- p.56 / Chapter Chapter 4. --- ELISA Optimization --- p.57 / Chapter 4.1. --- Coating F(ab')2 Quantitation --- p.58 / Chapter 4.2. --- Blocking and Diluting Agent Concentration --- p.61 / Chapter 4.3. --- Serum Analyte Dilution --- p.61 / Chapter 4.4. --- Conjugated Detector Antibody Titration --- p.64 / Chapter 4.5. --- Discussion --- p.66 / Chapter Chapter 5. --- Quality Control --- p.70 / Chapter 5.1. --- Avoidance of Prozone Phenomenon --- p.71 / Chapter 5.2. --- Inter-assay and Intra-assay Precision --- p.71 / Chapter 5.3. --- Discussion --- p.74 / Chapter Chapter 6. --- Adjustment of Anti-casein Interference --- p.77 / Chapter 6.1. --- Casein Allergy --- p.78 / Chapter 6.2. --- Prevalence of Anti-casein --- p.80 / Chapter 6.3. --- Discussion --- p.81 / Chapter Chapter 7. --- Prevalence of Anti-idiotypic Antibodies --- p.86 / Chapter 7.1. --- Formation Kinetics --- p.87 / Chapter 7.2. --- Occurrence in Transplant Patients --- p.87 / Chapter 7.3. --- Transfusion Effect --- p.101 / Chapter 7.3.1. --- Comparison between Transfused Transplant Patients and Normal Controls --- p.103 / Chapter 7.3.2. --- Comparison between Transfused Transplant Patients and Non-transfused Transplant Patients --- p.116 / Chapter 7.3.3. --- Association with Graft Survival --- p.117 / Chapter 7.4. --- Discussion --- p.128 / Chapter Chapter 8. --- Correlation of Transfusion with the Outcome of Transplant --- p.137 / Chapter 8.1. --- Rejection Episode --- p.138 / Chapter 8.2. --- Graft Survival --- p.139 / Chapter 8.3. --- Discussion --- p.142 / Chapter Chapter 9. --- General Conclusions --- p.149 / References --- p.153

Diss. (sammanfattning) Stockholm : Karolinska institutet, 2007. / Härtill 5 uppsatser.

Diss. (sammanfattning) Stockholm : Karol. inst., 2004. / Härtill 5 uppsatser.