Characterization of the cutaneous tumor microenvironment of advanced-stage mycosis fungoides using single-cell RNA sequencing
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ABSTRACT:
PROVIDER: PRJNA849242 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR19656448.fastq.gz | Fastqsanger.gz | |||
| SRR19656449.fastq.gz | Fastqsanger.gz | |||
| SRR19656450.fastq.gz | Fastqsanger.gz | |||
| SRR19656451.fastq.gz | Fastqsanger.gz | |||
| SRR19656452.fastq.gz | Fastqsanger.gz |
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Project description:Malignant T lymphocyte proliferation in mycosis fungoides (MF) is largely restricted to the skin, implying that malignant cells are dependent on their specific cutaneous tumor microenvironment (TME), including interactions with non-malignant immune and stromal cells, cytokines, and other immunomodulatory factors. To explore these interactions, we performed a comprehensive transcriptome analysis of the TME in advanced-stage MF skin tumors by single-cell RNA sequencing. Our analysis identified cell-type compositions, cellular functions, and cell-cell interactions in the MF TME that were distinct from those from healthy skin and benign dermatoses. While patterns of gene expression were common amongst patient samples, high transcriptional diversity was also observed in immune and stromal cells, with dynamic interactions and crosstalk between these cells and malignant T lymphocytes. This heterogeneity mapped to processes such as cell trafficking, matrix interactions, angiogenesis, immune functions, and metabolism that affect cancer cell growth, migration and invasion, as well as anti-tumor immunity. By comprehensively characterizing the transcriptomes of immune and stromal cell within the cutaneous microenvironment of individual MF tumors, we have identified patterns of dysfunction common to all tumors that represents a resource for identifying candidates with therapeutic potential as well as patient-specific heterogeneity that has important implications for personalized disease management.
2023-11-21 | GSE206123 | GEO
Project description:Mycosis fungoides (MF) is the most common and best studied of cutaneous T-cell lymphoma (CTCL). Three clinical cutaneous stages have been described (patch, plaque and tumor) as the disease progress developing also the disease lymph node, peripheral blood or systemic involvement in late stages. Clinical and pathologic diagnosis of early MF stages (patch and plaque) is difficult as its morphologic similarity to inflammatory dermatoses and low proportion of tumoral cells.
2018-06-21 | GSE109421 | GEO
Project description:Mycosis fungoides patients who develop tumors or extracutaneous involvement usually have a poor prognosis with no curative therapy available so far. In the present EORTC multicenter study, the genomic profile of 41 skin biopsies from tumor-stage mycosis fungoides was analyzed using a high-resolution oligo-array comparative genomic hybridization platform. Seventy-six percent of cases showed genomic aberrations. The most common imbalances were gains of 7q33.3q35 followed by 17q21.1, 8q24.21, 9q34qter and 10p14 and losses of 9p21.3 followed by 9q31.2, 17p13.1, 13q14.11, 6q21.3, 10p11.22, 16q23.2 and 16q24.3. Three specific chromosomal regions, 9p21.3, 8q24.21 and 10q26qter were defined as prognostic markers exhibiting a significant correlation with overall survival (P= .042, P= .017 and P= .022, respectively). Moreover, we have established two MFt genomic subgroups distinguishing a stable group (0-5 DNA aberrations) and an unstable group (> 5 DNA aberrations), showing that the genomic unstable group had a shorter overall survival (P=.05). We therefore conclude that specific chromosomal abnormalities, such as gains of 8q24.21 (MYC) and losses of 9p21.3 (CDKN2A, CDKN2B and MTAP), and 10q26qter (MGMT and EBF3) may play an important role in prognosis. In addition, we describe the MFt genomic instability profile.
2009-09-15 | GSE18098 | GEO
Project description:Mycosis fungoides patients who develop tumors or extracutaneous involvement usually have a poor prognosis with no curative therapy available so far. In the present EORTC multicenter study, the genomic profile of 41 skin biopsies from tumor-stage mycosis fungoides was analyzed using a high-resolution oligo-array comparative genomic hybridization platform. Seventy-six percent of cases showed genomic aberrations. The most common imbalances were gains of 7q33.3q35 followed by 17q21.1, 8q24.21, 9q34qter and 10p14 and losses of 9p21.3 followed by 9q31.2, 17p13.1, 13q14.11, 6q21.3, 10p11.22, 16q23.2 and 16q24.3. Three specific chromosomal regions, 9p21.3, 8q24.21 and 10q26qter were defined as prognostic markers exhibiting a significant correlation with overall survival (P= .042, P= .017 and P= .022, respectively). Moreover, we have established two MFt genomic subgroups distinguishing a stable group (0-5 DNA aberrations) and an unstable group (> 5 DNA aberrations), showing that the genomic unstable group had a shorter overall survival (P=.05). We therefore conclude that specific chromosomal abnormalities, such as gains of 8q24.21 (MYC) and losses of 9p21.3 (CDKN2A, CDKN2B and MTAP), and 10q26qter (MGMT and EBF3) may play an important role in prognosis. In addition, we describe the MFt genomic instability profile. Forty-one MFt were studied by arrayCGH using the Human Genome CGH 44K microarrays (G4410B and G4426B, Agilent Technologies, Palo Alto, CA, USA). In each microarray experiment, DNA obtained from a 20x10 um sections snap frozen samples from tumoral MF lesions was compared with commercial pools of healthy female DNA (Promega, Madison, WI, USA).
2010-05-06 | E-GEOD-18098 | biostudies-arrayexpress
Project description:Primary cutaneous T-cell lymphoma (CTCL) is responsible for two-thirds of cutaneous lymphoma cases. Mycosis fungoides (MF), the most common subtype of CTCL comprises approximately 60% of CTCLs. Due to the similar clinical features of MF and inflammatory diseases such as eczema and psoriasis, early-stage MF can easily be misdiagnosed as chronic inflammatory dermatoses, posing a diagnostic challenge to the dermatologist. Early-stage MF is characterized by a favorable prognosis with long-term survival similar to or slightly lower than that of age-matched healthy people, with a 5-year survival between 88% and 100%. In contrast, advanced-stage MF shows aggressive progression, and the median survival time of patients with lymph node and visceral involvement is only 13 months. Therefore, it is important to achieve early diagnosis to improve prognosis, yet there are few specific biomarkers for the early diagnosis and prognosis of MF. In this study, we described the pathological features of MF during the early and advanced stages through proteomics technology, providing clues for the pathogenesis of MF as well as biomarkers for malignant tumors in the early stage. More importantly, diagnostic biomarkers of early-stage MF were identified by comparing the proteomic characteristics of early-stage MF and inflammatory diseases, with the goal of preventing delayed therapy due to misdiagnosis.
2020-11-28 | PXD022798 |
Project description:We performed transcriptome analysis and multimodal data integration of the transcriptome and the microbiome of the skin of Mycosis fungoides Patients.
2023-12-01 | GSE221148 | GEO
Project description:We studied gene expression profiles of 17 cutaneous B-cell lymphomas that were collected with 4-6 millimeter skin punch biopsies. We also included tissue from 2 cases of mycosis fungoides (MF), 3 normal skin biopsies and 3 tonsils to create a framework for further interpretation. A hierarchical cluster algorithm was applied for data analysis. Our results indicate that small amounts of skin tissue can be used successfully to perform microarray analysis and result in distinct gene expression patterns. Duplicate specimens clustered together demonstrating a reproducible technique. Within the cutaneous B-cell lymphoma specimens two specific B-cell differentiation stage signatures of germinal center B-cells and plasma cells could be identified. Primary cutaneous follicular and primary cutaneous diffuse large B-cell lymphomas had a germinal center B-cell signature while a subset of marginal zone lymphomas demonstrated a plasma cell signature. Primary and secondary follicular B-cell lymphoma of the skin were closely related, despite previously reported genetic and phenotypic differences. In contrast primary and secondary cutaneous diffuse large B-cell lymphoma were less related to each other. This pilot study allows a first glance into the complex and unique microenvironment of B-cell lymphomas of the skin and provides a basis for future studies, that may lead to the identification of potential histologic and prognostic markers as well as therapeutic targets.
2005-10-07 | E-SMDB-1798 | biostudies-arrayexpress
Project description:We used targeted single cell RNA sequencing using a gene set composed of the BD Rhapsody Human Immune Response Panel, TCR panel, and a custom panel of 61 malignancy-associated genes and T/B cell receptor sequencing to characterize single cell populations in hypopigmented mycosis fungoides (HMF). Using a reference mapping model built on publically deposited classic mycosis fungoides single cell RNA sequencing datasets, we identified a predicted malignant cell population independent from the clonal T cell population in HMF.
2023-10-17 | GSE212146 | GEO
Project description:We identified skin microbiota signatures related to different symptoms, i.e. pain, pruritus, in patients with Mycosis Fungoides.
2022-04-11 | GSE186083 | GEO