SLC3A2 and neoplasm: Moreover, the dual staining of tumor cells with both anti-CD29 and anti-CD98 intuitively provides additional robustness for multiple reasons: (a) the expression of either of the 2 markers may change depending on the biological context, (b) higher technical fidelity in the staining process, and (c) the existence of more than 1 option in cell lines that we did not test.