title: GSM9086922: LJX,bladder cancer patient; Homo sapiens; RNA-Seq
library_construction_protocol: Single-cell RNA-seq experiment was performed by experimental personnel in the laboratory of NovelBio Co.,Ltd. The tissues were surgically removed and kept in MACS Tissue Storage Solution (Miltenyi Biotec) until processing. The tissue samples were processed as described below. Briefly, samples were first washed with phosphate-buffered saline (PBS), minced into small pieces (approximately 1mm3) on ice and enzymatically digested with collagenase I (Worthington) and DNase I (Worthington) for 45 min at 37°C, with agitation . After digestion, samples were sieved through a 70µm cell strainer, and centrifuged at 300g for 5 min. After the supernatant was removed, the pelleted cells were suspended in red blood cell lysis buffer (Miltenyi Biotec) to lyse red blood cells.  After washing with PBS containing 0.04% BSA, the cell pellets were re-suspended in PBS containing 0.04% BSA and re-filtered through a 35μm cell strainer. Dissociated single cells were then stained with AO/PI for viability assessment using Countstar Fluorescence Cell Analyzer. The single-cell suspension was further enriched with a MACS dead cell removal kit (Miltenyi Biotec). Single-cell RNA sequencing (scRNA-seq) was performed using 10X Genomics Chromium platform. Related operations including Generation of gel beads in emulsion (GEMs), barcoding, GEM-RT cleanup, complementary DNA amplification and library construction were all carried out following the manufacturer's protocol.