Definition: In this task, you're given a paragraph from the research paper and your task is to generate a suitable title for the research paper based on the given paper. Under 100 words is a good title length.
Input: Host protection against several intracellular pathogens requires the induction of CD8 + T cell responses. CD8 + T cells are potent effector cells that can produce high amounts of pro-inflammatory cytokines and kill infected target cells efficiently. However, a protective role for CD8 + T cells during Leishmania infections is still controversial and largely depends on the infection model. In this review, we discuss the role of CD8 + T cells during various types of Leishmania infections, following vaccination, and as potential immunotherapeutic targets.

CD8 + T cells in Leishmania infections: friends or foes?