Diagnostic modalities in vascularized composite allotransplantation: from histopathology to multimodal strategies

BackgroundVascularized composite allotransplantation (VCA) of the face and limbs restores form and function after devastating injury but, as in other transplant settings, remains limited by the precision of its diagnostic tools. Current surveillance re…

HHLA2 as an emerging immune checkpoint in lung cancer: linking EGFR signaling, macrophage polarization, and CD8+ T-cell metabolic suppression

Immune checkpoint blockade has revolutionized the treatment of lung cancer; however, therapeutic responses remain heterogeneous, particularly in patients harboring activating epidermal growth factor receptor (EGFR) mutations. Emerging evidence identifi…

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