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L1CAM generates SOX2+ metastatic progenitors through planar cell polarity signaling in lung adenocarcinoma

GSE284443 Mus musculus (mouse) ChIP-seq / ATAC-seq (genome binding and open chromatin) 6 samples Submitted 2026/04/16 Platform GPL24247Platform GPL24676
At a glance

ChIP-seq / ATAC-seq (genome binding and open chromatin) · mouse · 6 samples

What it is
ChIP-seq / ATAC-seq (genome binding and open chromatin)Where proteins bind the genome, or which regions are open and active.
Organism
Mus musculus (mouse)
Topic
Lung cancerThis series is part of our curated briefing on it.
Samples
6 samples: 5 distinct titles, 1 of them repeatedGroups are read from the sample names, not from the paper. Check the list below.
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Paper
L1CAM signaling through planar cell polarity drives SOX2 expression and lung adenocarcinoma metastasisNature communications · 2026
Summary (written by the submitters)
Lung adenocarcinoma (LUAD) is a leading cause of cancer-related deaths worldwide, with most fatalities attributed to metastasis. A primitive SOX2+ progenitor state, rare in primary tumors, becomes prominent in LUAD metastatic lesions and exhibits metastasis-initiating capacity. The signals that determine the emergence of SOX2+ progenitors are unknown.
Read the full summary ↓
We report that the cell adhesion molecule L1CAM, a marker of metastasis-initiating regenerative progenitors, plays a crucial role in the emergence of LUAD SOX2+ progenitors. Mechanistically, L1CAM induces the planar cell polarity (PCP) complex to activate c-Jun, which in turn interacts with the chromodomain helicase CHD1 to drive Sox2 transcription and generate metastasis-initiating regenerative progenitors. Treatment with an L1CAM antibody drug conjugate (ADC) effectively eliminates these LUAD cells and eradicates patient-derived xenograft metastases. Our findings identify L1CAM/PCP signaling as a driver of the SOX2+ LUAD metastatic progenitor state and provide an approach to treating metastasis by targeting L1CAM+ LUAD progenitors.
Published in
L1CAM signaling through planar cell polarity drives SOX2 expression and lung adenocarcinoma metastasis
Park JS, Kaygusuz Y, Kenum C et al. · Nature communications 2026 · PMID 42315504 · doi:10.1038/s41467-026-74539-2
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE284443_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: Look for peak files (.bed, .narrowPeak) and signal tracks (.bigWig) among the supplementary files; the raw reads are on ENA.

Also filed as BioProject PRJNA1199024 and SRA study SRP551879. Searching any of these in the dataset finder brings you back here.

Study design
5 distinct titles, 1 of them repeated
KP cells, Day ×2

How we read this: Read from 6 sample titles: 5 distinct titles with little repetition. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study
More Lung cancer datasets

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