Ask these 3 Questions before your next immunofluorescence (IF) experiment

The video presents three essential questions to ask before starting an immunofluorescence experiment: antibody specificity, optimized IF protocol, and consistent antibody performance.

Test antibody specificity using wild-type and knockout cell lines. GSK-3α antibody from Cell Signaling Technology is validated by comparing detection in wild-type fibroblasts versus GSK-3β knockout cells to confirm isoform-specific binding without cross-reactivity.

Test antibodies with different fixation methods on HeLa cells in parallel experiments. Keratin 8/18 antibody performs best with methanol fixation, while AIF XP antibody works optimally with formaldehyde fixation, saving time on protocol optimization.

Ensure reagent reliability throughout your experimental project by testing each new antibody batch to verify performance matches the previous batch. Rigorous testing guarantees lot-to-lot consistency.

Select Cell Signaling Technology IF-verified antibodies that have undergone strict validation including subcellular localization verification and appropriate cellular or tissue model systems.