To me (non expert) this behaviour seems consistent. Certain substances such a omalizumab reduces T-cells https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3328586/ h

To me (non expert) this behaviour seems consistent. Certain substances such a omalizumab reduces T-cells https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3328586/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3328586/ while at the same time is said to cause tumors as side effect in certain cases https://www.drugs.com/sfx/omalizumab-side-effects.html https://www.drugs.com/sfx/omalizumab-side-effects.html