Table 4.
Effect of antagonists of the PLC/IP3R/Ca2+ pathway on autoantibody- induced N2ANeurite retraction
Treatment | [Conc] | % Diab Autoantibody-induced neurite retraction* |
---|---|---|
Diabetic autoantibody | 50 nM | 100 ±0 % |
Y27632 | 10 µM | −12±3% |
U73122 (PLC inhibitor) | 1 µM | 12 ± 4 % |
BAPTA-AM (Ca2+ chelator) | 30 µM | 0 ± 0 % |
2-APB (IP3R inhibitor) | 50 µM | −14±7% |
Neurite retraction was determined as percent of acute neurite shortening (after 25 mins Exposure) in the presence of 50 nM diabetic autoantibodies alone, or following a brief pre incubation (10 mins) with indicated concentrations of specific antagonists of the PLC/IP3/Ca2+ path way or RhoA/ROCK signaling pathway. Results are mean ± SD in two or more experiments.