Primary mycelia are sterile but may fuse and, if of different mating type, will then form a fertile dikaryon.
For ELISPOT analysis, PVDF-membrane 96-well microplates (Millipore, Eschborn, Germany) were coated overnight at 4°C with the primary antibody diluted in sterile PBS.
In sterile conditions, primary tumour was finely dissected and flushed with DMEM containing 10% FCS and 2 m M glutamine, to produce a single cell suspension, which was seeded into large tissue culture flasks.
Bovine and human primary chondrocytes were prepared under sterile conditions by pronase and collagenase treatments followed by filtration and centrifugation as previously described [ 22].
By assisting illicit drug injectors to obtain sterile syringes the primary care provider is able to reduce the incidence of blood borne infections, and educate patients about safe syringe disposal.
For primary cell cultivation, fresh and sterile tissue specimens (including OSCC and normal oral mucosal tissues) were placed immediately on Hanks Balanced Salt Solution (Gibco, USA) containing penicillin and streptomycin (200 μg/ml) after being collected from the patient.
Fresh sterile tissue of primary breast tumors larger than 3 cm were obtained as surgical waste from patients newly diagnosed for breast cancer of invasive ductal type (n = 24) and mucinous type (n = 1) at the Robert Bosch Hospital immediately after surgical resection and maintained in organ transportation medium (Eurocollins, Fresenius medical care, Bad Homburg, Germany) on ice until use.
There were still exciting moments, of course, but compared to those early days, it's hard to avoid the sense that the primaries had become a bit sterile.
Primary antibodies were added to sterile-filtered 1% (w/v) BSA in PBS and incubated with the cells (at room temperature, 1 h).
In T. annulata, recovery from primary challenge results in non-sterile immunity, involving T cell recognition of class I presented parasite peptides, followed by the development of the persistent carrier state [ 4].
All tubing used was standard sterile intravenous tubing (Lifeshield – primary set, Hospira, Lake Forest, IL).
