TIPARP and renal cell adenocarcinoma: Moreover, the knockdown of PARP7 promotes microtubule stability not just in OVCAR4 cells but also in OVCAR3, HeLa, and A704 (kidney adenocarcinoma) cells through α-tubulin as a direct target of PARP7-mediated MARylation (Palavalli Parsons et al, 2021) (Table 1; Figs. 1C and 2).