From a very early paper " (CCR5 deletion gene) decreased severity of rheumatoid arthritis (24–26) and (c) multiple sclerosis (27), (d) long-term survival of renal transplants (28), and (e) reduced risk of myocardial infarction"

CCR5 Expression Influences the Progression of Human Breast Cancer in a p53-dependent Manner

A few more things leronlimab may help.