Table 1.

Clinical information of specimen donors.

Patient	AGC01	AGC02	AGC04	AGC05
Diagnosis	Adenocarcinoma, poorly differentiated	Signet ring cell carcinoma	Adenocarcinoma, poorly differentiated	Signet ring cell carcinoma
Metastases	Ascites	Ascites	Ascites, cerebrospinal fluid (CSF)	Ascites
Stage	IV	IV	IV	IV
Age	51	78	45	42
Sex	Male	Male	Female	Female
MSI type	MSS	n/c	MSS	MSS
Genomic aberrations	PIC3CA mutation	–	FGFR2 amplification	FGFR2 amplification