CD19 and neoplasm: In OSCC, PLIN3High tumors harbored obviously less infiltrated CD8+ T lymphocytes (Fig. 2f, g, l) and CD4+ T lymphocytes (Fig. 2h, m), whereas CD56+ NK cells, CD68+ tumor-associated macrophages (TAMs), and CD19+ B lymphocytes were essentially comparable (Fig. 2i–k).