Cell samples were washed and stained in flow buffer (PBS, 1% FBS, 0.1% sodium azide) for 20–30 min. Antibodies used in the study are as follows: APC or FITC anti-mouse CD45.1 (clone: A20, Tonbo Biosciences), PE anti-myc (Clone: 71D10, Cell Signaling Technology), anti-Muc16t was generated and conjugated in house (9 (link),25 (link)), Alexa Fluor 700 anti-mouse CD45 (Clone: 30-F11, BioLegend), and PE anti-CD3 mouse (clone: UCHT1, BioLegend). Data was collected using a Guava easyCyte HT Flow Cytometer (Luminex, Austin, Texas, USA), a LSRFortessa (BD, Franklin Lakes, NJ, USA), or a Cytoflex LX (Beckman Coulter, Pasadena, CA). Data were analyzed using Flowjo v10.4 software (Flowjo, Ashland, OR, USA).