These observations suggest that in general high Zn2+ has suppressive effects on prostate cancer cell growth but continuous exposure to an environment of high Zn2+ can lead to the overexpression of cancer promoting genes such as FBL and CD164.
To further characterize CD164 as a potential biomarker for malignant CD4<sup>+</sup> T cells, CD164<sup>+</sup> and CD164<sup>-</sup>CD4<sup>+</sup> T cells isolated from patients with high-circulating tumor burden, B2 stage, and medium/low tumor burden, B1-B0 stage, were assessed for the expression of genes reported to differentiate SS from normal controls, and associated with malignancy and poor prognosis.
Therefore, identification of CD164 as a cancer stem cell therapeutic marker may develop an effective therapy in patients with chemoresistant lung cancer.