Studies suggest certain stimuli like apoptosis behind the aberrant expression of circulating specific auto-antibodies in Type-1 diabetic patients. In present study, we investigated whether Streptozotocin (a diabetogenic compound) induced Rat RINm5f Insulinoma cells can expose immunogenic cryptic antigens. A time course treatment with 4 mM revealed 6hrs as minimal period to induce without much e...

objective(s) sickle cell disease is a genetic disorder characterized by chronic haemolytic anaemia. haemoglobin s containing red blood cells may be susceptible to oxidative stress due to imbalance between production of reactive oxygen species and the countering effect of the various antioxidants present in the body. materials and methods we evaluated some antioxidant enzymes which include gluta...

Balanced transmembrane signals maintain a competent peripheral B cell pool limited in self-reactive B cells that may produce pathogenic autoantibodies. To identify molecules regulating peripheral B cell survival and tolerance to self-antigens (Ags), a gene modifier screen was performed with B cells from CD22-deficient C57BL/6 (CD22(-/-[B6])) mice that undergo activation-induced cell death (AICD...

Ag-specific CD4(+) T cells orchestrating adaptive immune responses are crucial for the development of protective immunity, but also mediate immunopathologies. To date, technical limitations often prevented their direct analysis. In this study, we report a sensitive flow cytometric assay based on magnetic pre-enrichment of CD154(+) T cells to visualize rare Ag-reactive naive and memory Th cells ...

Abstract Type 1 diabetes occurs when autoreactive T cells attack insulin-producing in pancreatic islets. B promote disease by acting as essential antigen presenting cells. Targeted immune therapy for treatment and prevention of autoimmune diseases is preferable to drugs that cause global immunosuppression. We therefore investigated the efficacy three constructs designed specifically target neut...

Two T lymphocyte-specific antisera, i.e. naturally-occurring auto-antibody to T cells of systemic lupus erythematosus patients (natural T cell toxic autoantibody) and heterologous antiserum against human brain tissue (antibrain-associated T-cell antigen), were used to detect cell surface antigens of human peripheral T lymphocytes. Nylon column-purified T cells from normal aged individuals and p...

D i s s e r t a t i o n zur Erlangung des akademischen Grades d o c t o r r e r u m n a t u r a l i u m

Objective(s) Sickle cell disease is a genetic disorder characterized by chronic haemolytic anaemia. Haemoglobin S containing red blood cells may be susceptible to oxidative stress due to imbalance between production of reactive oxygen species and the countering effect of the various antioxidants present in the body. Materials and Methods We evaluated some antioxidant enzymes which include gl...