As shown in Figure 2H and 2I, oral gavage of L. paracasei ZJUZ2-3 significantly suppressed tumor progression in mice Histopathological (HE) and Ki-67 immunohistochemical analyses demonstrated L. paracasei ZJUZ2-3 inhibited the orthotopic tumor growth (Figure 2J and K). This evidence concerns the gene MKI67 and neoplasm.