TACC3 and cancer: Surprisingly, unlike observations in mitotic fibroblast or meiotic oocyte spindles, meiotic spermatocytes did not show TACC3 or cKAP5/chTOG detection on intrapolar or kinetochore spindle microtubules, nor did these proteins appear at the plus-ends of microtubules near kinetochores as reported in somatic and cancer cells (Fig. 1, panels 2 and 4 cells)38–40,50.