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Integrated single cell analysis in transformed follicular lymphoma

Histological transformation of follicular lymphoma to aggressive form occurs 2-3% per year with poor outcome. Divergent evolution and an altered tumour-microenvironment (TME) have been implicated during transformation. However, phenotypic consequences of this evolution and its implication in TME remain unknown. To address this, we performed single cell whole genome and whole transcriptome sequencing of paired pre/post transformation patient samples. We further performed scWTS of additional samples from patients without transformation. Our analysis revealed evolutionary dynamics of transformation at unprecedented resolution. Integration of scWGS and scWTS identified pathways upregulated during evolution. scWTS analysis revealed a shifting TME landscape, with an exhausted signature emerging during transformation. Using multi-color immunofluorescence we transferred these findings to a TME-based transformation biomarker, subsequently validated in independent pretreatment cohorts. Taken together, our results provide a comprehensive view of the combined genomic and phenotypic evolution of malignant cells during transformation, and shifting cross-talk between malignant cells and TME.

Click on a Dataset ID in the table below to learn more, and to find out who to contact about access to these data

Dataset ID Description Technology Samples
EGAD00001010204 Illumina HiSeq 2500 1
EGAD00001010205 Illumina HiSeq 2500 1
EGAD00001010206 Illumina HiSeq 2500 1
EGAD00001010207 Illumina HiSeq 2500 1
EGAD00001010208 Illumina HiSeq 2500 1
EGAD00001010209 Illumina HiSeq 2500 1
EGAD00001010210 Illumina HiSeq 2500 1
EGAD00001010211 Illumina HiSeq 2500 1
EGAD00001010212 Illumina HiSeq 2500 1
EGAD00001010213 Illumina HiSeq 2500 1
EGAD00001010214 Illumina HiSeq 2500 1
EGAD00001010215 Illumina HiSeq 2500 1
EGAD00001010216 Illumina HiSeq 2500 1
EGAD00001010217 Illumina HiSeq 2500 1
EGAD00001010218 Illumina HiSeq 2500 1
EGAD00001010219 Illumina HiSeq 2500 1
EGAD00001010220 Illumina HiSeq 2500 1
EGAD00001010221 Illumina HiSeq 2500 1
EGAD00001010222 Illumina HiSeq 2500 1
EGAD00001010223 Illumina HiSeq 2500 1
EGAD00001010224 Illumina HiSeq 2500 1
EGAD00001010225 Illumina HiSeq 2500 1
EGAD00001010226 Illumina HiSeq 2500 1
EGAD00001010227 Illumina HiSeq 2500 1
EGAD00001010228 Illumina HiSeq 2500 1
EGAD00001010229 Illumina HiSeq 2500 1
EGAD00001010230 Illumina HiSeq 2500 1
EGAD00001010231 Illumina HiSeq 2500 1
EGAD00001010232 Illumina HiSeq 2500 1
EGAD00001010234 Illumina HiSeq 2500 1
EGAD00001010235 Illumina HiSeq 2500 1
EGAD00001010236 Illumina HiSeq 2500 1
EGAD00001010237 Illumina HiSeq 2500 1
EGAD00001010238 Illumina HiSeq 2500 1
EGAD00001010239 HiSeq X Ten 1
EGAD00001010240 HiSeq X Ten 1
EGAD00001010241 HiSeq X Ten 1
EGAD00001010242 HiSeq X Ten 1
EGAD00001010243 HiSeq X Ten 1
EGAD00001010244 HiSeq X Ten 1
EGAD00001010245 HiSeq X Ten 1
EGAD00001010246 HiSeq X Ten 1
EGAD00001010247 HiSeq X Ten 1
EGAD00001010248 HiSeq X Ten 1
EGAD00001010249 HiSeq X Ten 1