Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Neural Crest Cell Signatures Drive TSC and LAM Tumorigenesis [human]

ABSTRACT: This study was performed to test the hypothesis that neural crest cells (NCCs) are causative cells for multi-systemic neoplasms occurring in Tuberous Sclerosis Complex (TSC) and Lymphangioleiomyomatosis (LAM) disorders. The hypothesis stemmed from the mesenchymal phenotypes of TSC and LAM neoplasms and their occurrence in patients at known ontogenetic destinations for maturing neural crest cells. We determined differential gene expression between single cell populations in wildtype mice renal cortical tissues versus renal cystadenomas of the tuberous sclerosis mice model by RNA sequencing, and validated our findings by immunohistochemistry, RT-qPCR, western blots, and tumorigenicity assays. Based on our results, we pioneer the characterization of cranial NCC-induced tumorigenesis in TSC and LAM and identify the crucial role of novel neurocristopathic markers: secreted phosphoprotein (SPP1) and cytokeratin 18 (Krt18) in disease pathogenesis. Genetic inhibition of Spp1 yields an anti-tumorigenic phenotypes in NCCs.

ORGANISM(S): Homo sapiens

PROVIDER: GSE292058 | GEO | 2026/03/03

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Neural Crest Cell Signatures Drive TSC and LAM Tumorigenesis

Project description:This study was performed to test the hypothesis that neural crest cells (NCCs) are causative cells for multi-systemic neoplasms occurring in Tuberous Sclerosis Complex (TSC) and Lymphangioleiomyomatosis (LAM) disorders. The hypothesis stemmed from the mesenchymal phenotypes of TSC and LAM neoplasms and their occurrence in patients at known ontogenetic destinations for maturing neural crest cells. We determined differential gene expression between single cell populations in wildtype mice renal cortical tissues versus renal cystadenomas of the tuberous sclerosis mice model by RNA sequencing, and validated our findings by immunohistochemistry, RT-qPCR, western blots, and tumorigenicity assays. Based on our results, we pioneer the characterization of cranial NCC-induced tumorigenesis in TSC and LAM and identify the crucial role of novel neurocristopathic markers: secreted phosphoprotein (SPP1) and cytokeratin 18 (Krt18) in disease pathogenesis. Genetic inhibition of Spp1 yields an anti-tumorigenic phenotypes in NCCs.

2026-03-03 | GSE291150 | GEO

Integrative Single Cell Multiomic Profiling Analysis Reveals HOX-PBX Gene Regulatory Network Regulating the Survival of mTOR Hyperactive Cells [snRNA-Seq]

Project description:Lymphangioleiomyomatosis (LAM) is a rare, debilitating lung disease that predominantly affects women of reproductive age. LAM cells carry deleterious mutations of tuberous sclerosis complex (TSC1/TSC2) genes, resulting in hyperactivation of the mechanistic target of rapamycin complex 1 (mTORC1) and ultimately dysregulated cell growth. The integrative single cell omics data identified the activation of uterine specific HOX-PBX transcriptional programming in pulmonary LAMCORE cells. Network analysis predicted homeobox transcription factors including PBX1 and HOXD11 as key regulators controlling LAMCORE cell fate. Targeting the HOX-PBX network may have therapeutic value in LAM and TSC-related diseases, and possibly in other mTORC1-hyperactive neoplasms.

2023-04-03 | GSE217107 | GEO

Integrative Single Cell Multiomic Profiling Analysis Reveals HOX-PBX Gene Regulatory Network Regulating the Survival of mTOR Hyperactive Cells [snATAC-Seq]

2023-04-03 | GSE217106 | GEO

Modulation of infiltrating CD206-positive macrophages restricts progression of pulmonary lymphangioleiomyomatosis (LAM)

Project description:Lymphangioleiomyomatosis (LAM) is a very rare disease affecting women of childbearing age, either sporadically or in association with tuberous sclerosis complex (TSC). The proliferation of TSC2 null LAM cells in the lung results in cystic destruction, airflow obstruction, respiratory insufficiency and eventually death. In the LAM lung, the tumor immune microenvironment (TME) plays a role in the progression of LAM lesions. Macrophages can be polarized into inflammatory M1 macrophages or protumorigenic immunosuppressive M2 macrophages. Macrophages are an important component of the TME, and we hypothesized that CD206+ M2 macrophages could facilitate LAM progression and represent a potential therapeutic target.

2025-05-29 | GSE278445 | GEO

Transcriptomic profiling of Neural Progenitors Cell and Neural Crest Cell Differentiation of Wild-Type and TSC2-Knockout Cultures from the Pluripotent State

Project description:TSC2 inactivating mutations elicit mTORC1 hyperactivation and underlie neurological dysfunction and the development of neural and mesenchymal tumors in the monogenic disease tuberous sclerosis complex (TSC). We present a multi-lineage model of TSC2-deficiency employing CRISPR-Cas9 engineering in human pluripotent stem cells (hPSCs) and differentiation into neural and neural crest lineages, cell types predicted to drive TSC manifestations. Temporal RNA-sequencing reveals a massive proteostatic stress response underlying early neuroepithelial induction of TSC2-deficient cells, which is resolved upon neural crest cell (NCC) specification but persists in neural precursor cells (NPCs). This culminates in long-term endosomal and metabolic reprogramming as cells age, and sensitivity of TSC2-/- NPCs, but not NCCs, to death via proteasome inhibition independent of mTORC1 activity. Thus, TSC2-deficiency induces lineage-specific stress adaptations which confer differential sensitivity to a commonly targeted pathway. These results exemplify the complexity of elucidating underlying biological mechanisms and therapeutic approaches for multisystem diseases, illustrating the power of utilizing hPSC disease models with tissue-specific relevance.

2024-06-07 | GSE137614 | GEO

Expression data from Tsc2-null cell line ELT3, and the ELT3-derivative rapamycin-resistant cell line ELT3-245

Project description:Tuberous Sclerosis Complex (TSC) and Lymphangioleiomyomatosis (LAM) are caused by inactivating mutations in TSC1 or TSC2, leading to mTORC1 hyperactivation. The mTORC1 inhibitors rapamycin and analogs (rapalogs) are approved for treating of TSC and LAM. Due to their cytostatic and not cytocidal action, discontinuation of treatment leads to tumor regrowth and decline in pulmonary function. Therefore, life-long rapalog treatment is proposed for the control of TSC and LAM lesions, which increases the chances for the development of acquired drug resistance. Understanding the signaling perturbations leading to rapalog resistance is critical for the development of better therapeutic strategies. We developed the first Tsc2-null rapamycin-resistant cell line, ELT3-245, which is highly tumorigenic in mice, and refractory to rapamycin treatment. In vitro ELT3-245 cells exhibit enhanced anchorage-independent cell survival, resistance to anoikis, and loss of epithelial markers. A key alteration in ELT3-245 is increased β-catenin signaling. We propose that a subset of cells in TSC and LAM lesions have additional signaling aberrations, thus possess the potential to become resistant to rapalogs. Alternatively, when challenged with rapalogs TSC-null cells are reprogrammed to express mesenchymal-like markers. These signaling changes could be further exploited to induce clinically-relevant long-term remissions.

2018-09-06 | GSE119524 | GEO

Comparison of the kidney transcriptome of 45 days old principal cell-specific Tsc1 knockout (Tsc1f/f/Aqp2 Cre) vs Wild-type (WT) mice.

Project description:Tuberous sclerosis complex is a genetic disorder that affects multiple organs. In the kidney, it presents as hamartomas and cysts. The epithelium of TSC renal cysts is primarily composed of A-intercalated cells. In these studies, we compared the renal transcriptomes of 45 days old principal cell-specific Tsc1 knockout (Tsc1f/f/Aqp2 Cre; Tsc1 KO) and WT mice.

2026-02-18 | GSE311309 | GEO

Comparison of the kidney transcriptome of 28 days old principal cell-specific Tsc1 knockout (Tsc1f/f/Aqp2 Cre) vs wild-type (WT) mice

Project description:Tuberous sclerosis complex is a genetic disorder that affects multiple organs. In the kidney, it presents as hamartomas and cysts. The epithelium of TSC renal cysts is primarily composed of A-intercalated cells. In these studies, we compared the renal transcriptomes of 28 days old principal cell-specific Tsc1 knockout (Tsc1f/f/Aqp2 Cre; Tsc1 KO) and WT mice.

2026-02-18 | GSE311308 | GEO

Tuberous sclerosis complex renal lesion pleiotropy arises from multiple aberrant developmental processes

Project description:Tuberous sclerosis complex (TSC) is a multisystem tumor-forming disorder caused by loss of TSC1 or TSC2. Renal manifestations predominately include cysts and angiomyolipomas. Despite a well-described monogenic etiology, the cellular pathogenesis has remained elusive. Here, we report a novel genetically-engineered human renal organoid model which recapitulates pleiotropic features of TSC kidney disease in vitro and upon orthotopic xenotransplantation. We find that loss of TSC1/2 affects multiple developmental processes in the renal epithelial, stromal, and glial compartments. First, loss of TSC1/2 leads to an expanded stroma by favouring stromal cell fate acquisition and alters terminal stromal cell identity. Second, epithelial cells in the TSC1/2-/- organoids exhibit a rapamycin-insensitive epithelial-to-mesenchymal transition. Third, a melanocytic population forms exclusively in TSC1/2-/- organoids, branching from MITF+ Schwann cell precursors of a bona fide neural crest-to-Schwann cell differentiation trajectory. Together, these results illustrate the pleiotropic developmental consequences of biallelic inactivation of TSC1/2 and offer insight into the pathogenesis of TSC kidney lesions.

2022-07-05 | GSE182632 | GEO

Profiling the Microenvironment in Tuberous Sclerosis Complex-Associated Angiomyolipoma: Insights from Spatial Gene Expression Analysis

Project description:Tuberous sclerosis complex (TSC) is a multisystem genetic disorder caused by mutations in TSC1 or TSC2, leading to constitutive activation of the mTORC1 pathway. Among its manifestations, renal angiomyolipomas (AMLs) are a common and distinctive tumor type. However, the molecular differences between TSC-associated AMLs (TSC-AMLs) and sporadic AMLs remain poorly understood. To address this, we performed spatial transcriptomic profiling (CytAssist Visium) on FFPE tissue sections from one case each of TSC-AML, sporadic AML, and renal cell carcinoma (RCC). This approach enabled in situ analysis of gene expression while preserving tissue architecture and cellular context. Our findings provide insight into the unique molecular landscape of TSC-associated tumors and offer a valuable resource for identifying disease-specific biomarkers and therapeutic targets.

2025-12-09 | GSE299165 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data