A follow-up investigation of sertraline in a mouse model of systemic cryptococcosis revealed that it combats infection similar to fluconazole, an antifungal drug used commonly since the early 1990s. Moreover, a drug combination of sertraline and fluconazole was found to work more efficiently than either drug alone.
Lin says that even though the infection ultimately proved fatal in the mice study, sertraline as a cryptoccol treatment still holds promise. Because sertraline reduced the overall fungal burden within the mice and also possesses the desirable ability to cross the blood-brain barrier as an antidepressant, there is still hope it can be altered to serve as a viable treatment option.
"The problem for many current antifungal drugs is that many cannot go to the brain, and it's very difficult for a lot of compounds to reach the brain in the first place," Lin says. "So, you run into the problem of not killing all the fungus or having a very low level of fungus still exist. The fact is, this antidepressant can cross the blood-brain barrier and can get into the tissue at high concentrations."
It remains unclear exactly what dosage and concentration of sertraline is necessary to completely eliminate cryptococcosis, especially cryptococcal meningitis, but Lin and Sachs hope those answers will come to light with further testing.
"If this becomes useful, it could represent a truly significant increase in our ability to help people with brain cryptococca
|Contact: Shana Hutchins|
Texas A&M University