introduction: antifertility effects of naturally occuring antisperm antibody (asa) in infertile couples and studies on experimental immunization of various animals with sperm antigens represent asa as an immunocontraceptive target. the effects of different factors on sperm immunogenecity and asa production have been studied and different results have been reported. in this study, whole sperm im...

background: the prevalence of anti-neutrophil cytoplasmic antibodies (ancas) and anti-cardiolipin antibodies (anti-cl ab) in behcet’s disease (bd) and also their roles in vascular involvement is controversial. objective: to assess the prevalence of ancas and anti-cl ab as well as their correlations with clinical manifestations in iranian patients with bd. methods: in this case/control study, th...

background:epidermal growth factor receptor (egfr) overexpression is a characteristic of several malignancies and could be considered as an excellent target for designing specific inhibitors such as anti-egfr monoclonal antibodies for cancer therapy. drawbacks exerted by large sizes of full-length antibodies have lead to the development of single chain antibodies, which benefit from having smal...

A murine IgM monoclonal antibody (MA-2C6) with κ-light chains directed against an antigenic determinant of outer surface protein A (OspA) of the Lyme disease spirochete, Borreliaburgdorferi, is produced. This antibody could bind specifically to OspA antigen of several isolates of B. burgdorferi, but not to the non-Lyme disease bacteria such as T. pallidum and B. hermsii. Antibody MA-2C6 was pur...

Background: Selective antibody deficiency with normal immunoglobulins (SADNI) may be identified as part of distinct primary or secondary immunodeficiency disorders. The clinical manifestations include recurrent, often severe or prolonged, upper or lower respiratory tract infections. Objectives: To evaluate SADNI in patients with recurrent sinopulmonary infections and its relation to IgG subclas...

Background: Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease which is characterized by B-cell abnormality and auto-antibody generation. Since bacterial infections are the most important causes of mortality in these patients, pneumococcal vaccination is recommended for children with SLE. Objective: To investigate humoral immunity and specific-antibody formation in response to a...

DECLARATION I declare that this thesis represents my own work. Where information has been derived from other sources, I confirm that this has been indicated in the thesis. Hodgkin Postgraduate Award for funding me during my PhD study. I would also like to give my sincere thanks to my supervisor Professor John W. Masters for funding and supervising me throughout my research work. I am extremely ...

the b-cell cd20 antigen is one of the most reliable surface targets in immunotherapy of b lymphoma. in this project, we studied the production and characterization of a new monoclonal antibody against chimeric human cd20 extra loops (hcd20 exl). the results showed that clone c12h, igg2/k isotype reacted with the antigen in elisa and immunoblot. the kd value was  found to be 2×10-9m and flow cyt...

cystic hydatid disease (hydatidosis) is one of the most important zoonosis that is caused by the larval stage of echinococcus granulosus . as its diagnosis by clinical symptoms alone is difficult and confusing, serologic diagnostic techniques are used to confirm the disease. these techniques can also be used for   epidemiologic studies. the present study was performed with a commercial human en...