<HashMap><database>biostudies-arrayexpress</database><scores/><additional><submitter>Veronica Busa</submitter><organism>Mus musculus</organism><full_dataset_link>https://www.ebi.ac.uk/biostudies/studies/E-MTAB-13556</full_dataset_link><description>Mice are cancer-prone, whereas naked mole-rats are cancer-resistant. To test the discrepancies between how mouse and naked mole-rat skin responds to carcinogens, we topically treated animals with DMBA followed by TPA. In this dataset, we additionally perform single-cell RNA-seq on back skin in mice treated exclusively with TPA as a control.</description><repository>biostudies-arrayexpress</repository><sample_protocol>Nucleic Acid Extraction - 10X Genomics Chromium Single Cell 3’ cDNA libraries were prepared according to the manufactures’ instructions. Single cells were encapsulated into droplets in the Chromium Controller instrument for cell lysis.</sample_protocol><sample_protocol>Library Construction - Single cells were encapsulated into droplets in the Chromium Controller instrument for barcoded reverse transcription (RT) of mRNA, followed by amplification, shearing and Illumina library construction. Quantification of the libraries was carried out using the Qubit dsDNA HS Assay Kit (Life Technologies), and cDNA integrity was assessed using D1000 ScreenTapes (Agilent Technologies).</sample_protocol><sample_protocol>Sequencing - Libraries were pooled per species and each pool sequenced on Illumina NovaSeq6000 using either paired-end run sequencing 28 bp on read 1 and 94 bp on read 2 or 100 bp on each read.</sample_protocol><sample_protocol>Sample Collection - 1-5 mm3 biopsies from shaved mouse back skin were incubated with either: I) dissociation buffer (1.25 mg/ml collagenase I (Sigma), 0.5 mg/ml collagenase II (Worthington), 0.5 mg/ml collagenase IV (Worthington) and 0.1 mg/ml hyaluronic acid (Sigma) in Hanks Balanced Salt solution (HBSS) (Invitrogen)) for 2.5 hours followed by addition of trypsin (Santa Cruz Biotechnology) to a final concentration of 0.25% for 30 minutes, or II) 0.25% trypsin (Santa Cruz Biotechnology) for 2 hours followed by incubation with dissociation buffer for 1 hour. All dissociation steps were performed at 37°C and shaking at 600 rpm. After 3 hours enzymatic digestion was quenched with HBSS supplemented with 10% fetal bovine serum (FBS, Life Technologies) and cell suspensions filtered through 40 µm cell strainers (Grenier Bio-One). Strainers were washed with an additional 2-3 ml HBSS containing 10% FCS and cells pelleted by centrifugation at 300 x g for 8 minutes at 4°C. Cell pellets were carefully (using wide-bored P1000 pipet tips) resuspended in 100-200 μl sorting buffer (1 mM EDTA (Invitrogen), 0.04% HyClone bovine serum albumin (BSA, GE Healthcare Life Sciences) in PBS). Cell suspensions were either passed through a 40 µm FLOWMI cell strainer (Fisher Scientific) and viability and concentration determined using 0.4% trypan blue stain (Invitrogen) and Countess II automated cell counter (Invitrogen) or subjected to Fluorescence-activated Cell Sorting (FACS).    Cell pellets for FACS were resuspended in sorting buffer containing 1 μg/ml propidium iodide (PI) (Life Technologies) and transferred to low-binding polypropylene FACS tubes. Live cells from each sample were sorted into one 96-well flat-bottom low attachment tissue culture plate well containing 30 μl sorting buffer on a cold plate using Aria II flowcytometry cell sorter (BD Biosciences) with a 70 µm nozzle (70 psi). PI was excited with a 561 nm laser and fluorescence was recorded with a 610/20 595LP filter. Cells were gated using; i) FSC-A vs SSC-A to remove debris ii) SSC-W vs SSC-A to exclude doublets iii) RL780/60-A vs PI-A to exclude auto-fluorescent cells and dead cells (PI positive). Samples were handled on ice whenever possible.</sample_protocol><figure_sub>Organization</figure_sub><figure_sub>MINSEQE Score</figure_sub><figure_sub>Assays and Data</figure_sub><figure_sub>Processed Data</figure_sub><figure_sub>MAGE-TAB Files</figure_sub><data_protocol>Sequence Alignment - The droplet-based sequencing data were aligned using the Cell Ranger Single-Cell Software Suite (v. 3.0.1, 10x Genomics) against the GRCm38 (mm10) reference.</data_protocol><data_protocol>Data Transformation - Cells with fewer than 600 detected genes; greater than 10% mitochondrial reads; or log10 total mRNA counts greater than two standard deviations from average across all cells were removed. In the single-species analyses (SS), expression was first normalised using SCtransform regressing out the percentage of mitochondrial genes within each biopsy.</data_protocol><omics_type>Unknown</omics_type><omics_type>Transcriptomics</omics_type><omics_type>Genomics</omics_type><omics_type>Proteomics</omics_type><instrument_platform>Illumina NovaSeq 6000</instrument_platform><study_type>RNA-seq of coding RNA from single cells</study_type><species>Mus musculus</species><pubmed_authors>Veronica Busa</pubmed_authors><pubmed_authors>Mikaela Behm</pubmed_authors></additional><is_claimable>false</is_claimable><name>single-cell RNA-seq of mouse back skin treated with TPA</name><description>Mice are cancer-prone, whereas naked mole-rats are cancer-resistant. To test the discrepancies between how mouse and naked mole-rat skin responds to carcinogens, we topically treated animals with DMBA followed by TPA. In this dataset, we additionally perform single-cell RNA-seq on back skin in mice treated exclusively with TPA as a control.</description><dates><release>2025-11-19T00:00:00Z</release><modification>2025-11-19T02:02:47.095Z</modification><creation>2023-11-20T19:17:17.308Z</creation></dates><accession>E-MTAB-13556</accession><cross_references><ENA>ERP155239</ENA><Biostudies>E-MTAB-12459</Biostudies><Biostudies>E-MTAB-12454</Biostudies><Biostudies>E-MTAB-12456</Biostudies><Biostudies>E-MTAB-12461</Biostudies><Biostudies>E-MTAB-12451</Biostudies><EFO>EFO_0002944</EFO><EFO>EFO_0004170</EFO><EFO>EFO_0005684</EFO><EFO>EFO_0004917</EFO><EFO>EFO_0005518</EFO><EFO>EFO_0003816</EFO><EFO>EFO_0004184</EFO></cross_references></HashMap>