Final answer:
CC-chemokines, γ-interferon, TNF-α, and IL-12 are cytokines present in the brain during times of disease remission in multiple sclerosis (MS) and play a role in regulating Th1 cells.
Step-by-step explanation:
During times of disease remission in multiple sclerosis (MS), cytokines that play a role in regulating Th1 cells and are present in the brain include CC-chemokines, γ-interferon, TNF-α, and IL-12. These cytokines are involved in immune response and inflammation.