The AICL-KLRF1 axis supports CD4-CD8 T cell communication and cytokine competence in pre-exhausted CD8+ T cells. - Barone M; Peidli S; Neuschulz A; Riesterer K; Iwert C; Junquera L; Sai S; Bolaji O; Bakoueva D; Appelt C; Obermayer B; Klinger B; et al. (EMBO reports, 2026)