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The adhesion RadD enhances Fusobacterium nucleatum tumor colonization and colorectal carinogenesis

ABSTRACT: Fusobacterium nucleatum can bind to host cells and potentiate intestinal tumorigenesis. Here, we used a genome-wide screen to identify an adhesin, RadD, which facilitates the attachment of F. nucleatum to CRC cells in vitro. RadD directly binds to CD147, a receptor overexpressed on CRC cell surfaces, which initiated a PI3K-AKT-NF-kB-MMP9 cascade, subsequently enhanceing tumorigenesis in mice. Clinical specimen analysis showed that elevated radD levels in CRC tissues correlated positively with activated oncogenic signaling and poor patient outcomes. Finally, blockade of the interaction between RadD and CD147 in mice effectively impaired F. nucleatum attachment and attenuated F. nucleatum-induced oncogenic response. Together, our study provides insights into an oncogenic mechanism driven by F. nucleatum RadD and suggests taht the RadD-CD147 interaction could be a potential therapeutic target for CRC.

INSTRUMENT(S): Q Exactive HF

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Cell Culture

SUBMITTER: Lu Zhang

LAB HEAD: Lu Zhang

PROVIDER: PXD053279 | Pride | 2024-07-10

REPOSITORIES: Pride

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			Action	DRS
	Fn_WT_radD_1.msf	Msf
	Fn_WT_radD_1.raw	Raw
	Fn_WT_radD_2.msf	Msf
	Fn_WT_radD_2.raw	Raw
	Fn_WT_radD_3.msf	Msf

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The adhesin RadD enhances Fusobacterium nucleatum tumor colonization and colorectal carcinogenesis

Project description:Fusobacterium nucleatum can bind to host cells and potentiate intestinal tumorigenesis. Here, we used a genome-wide screen to identify an adhesin, RadD, which facilitates the attachment of F. nucleatum to CRC cells in vitro. RadD directly binds to CD147, a receptor overexpressed on CRC cell surfaces, which initiated a PI3K-AKT-NF-κB-MMP9 cascade, subsequently enhancing tumorigenesis in mice. Clinical specimen analysis showed that elevated radD gene levels in CRC tissues correlated positively with activated oncogenic signaling and poor patient outcomes. Finally, blockade of the interaction between RadD and CD147 in mice effectively impaired F. nucleatum attachment and attenuated F. nucleatum-induced oncogenic response. Together, our study provides insights into an oncogenic mechanism driven by F. nucleatum RadD and suggests that the RadD-CD147 interaction could be a potential therapeutic target for CRC.

2024-06-11 | GSE245617 | GEO

Gene expression of THP-1 macrophages co-cultured with F. nucleatum under iron-deficient and iron-overload conditions

Project description:Fusobacterium nucleatum (F. nucleatum) contributes to the development of colorectal cancer (CRC) by inducing chronic inflammation. We found that iron deposition in macrophages is associated with poor prognosis of CRC patients with high amount of F. nucleatum. To explore the impact of iron on macrophage properties in the presence of F. nucleatum, we conducted RNA sequencing of THP-1 macrophages pretreated with ferric anmonium citrate (FAC) or deferoxamine (DFO), followed by treatment with F. nucleatum. Several chemokine genes were differentially increased in FAC-treated cells when compared with DFO-treated cells, suggesting that iron is required for the efficient induction of tumor-promoting chemokines in macrophages upon F. nucleatum infection. Our results suggest a prognostic role for iron in F. nucleatum-positive CRC.

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Project description:Fusobacterium nucleatum-treated LoVo cells reported an increased promoting CRC metastasis effect compared with PBS control. To understand the underlying mechanisms of Fusobacterium nucleatum-induced metastasis ability of CRC cells, we performed RNA-sequencing in LoVo cells s with or without Fusobacterium nucleatum treatment with three independent biological replicates.

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Fusobacterium nucleatum promotes colorectal cancer cells adhesion to endothelial cells and facilitates extravasation and metastasis by inducing ALPK1/NF-κB/ICAM1 axis

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CD147 and downstream ADAMTSs promote the tumorigenesis of Kaposi sarcoma-associated herpesvirus

Project description:The Kaposiâs Sarcoma-associated Herpesvirus (KSHV) is the etiologic agent of several human cancers, including Kaposiâs Sarcoma (KS), which preferentially arise in immunocompromised patients but lack of effective therapeutic options. We have previously shown that KSHV or viral protein LANA can upregulate the glycoprotein CD147 (Emmprin) to induce primary endothelial cell invasiveness, which also requires PI3K/Akt and MAPK activation of VEGF production. In the current study, we first time identify the global network controlled by CD147 in KSHV-infected endothelial cells using Illumina microarray analysis. Among these downstream genes, ADAMTS1 and 9, two specific metalloproteases are strongly expressed in AIDS-KS tissues and contributed to KSHV-infected cell invasiveness through regulation of related cytokines production and respective receptors expression. By using a nude mice KS-like model, we found that targeting CD147 and downstream ADAMTSs proteins significantly suppressed KSHV-related tumorigenesis in vivo, which is potentially through impairing extracellular matrix (ECM) formation in tumor microenvironment. Taken together, we think that targeting CD147 and related proteins may represent a promising therapeutic strategy against KSHV-related malignancies. HUVEC cells were infected by KSHV or transduced by a CD147 recombinant adenoviral vector and the gene expression signature was compared to respective controls

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Project description:In addition to genomic alterations, aberrant changes in post-transcriptional regulation can modify gene function and drive cancer development. RNA-binding proteins (RBPs) are a large class of post-transcriptional regulators that have been increasingly implicated in carcinogenesis. By integrating multi-omics data, we identify LARP1 as one of the most upregulated RBPs in colorectal cancer (CRC), and demonstrate its oncogenic properties. We perform LARP1:RNA interactome profiling and unveil a previously unexplored role for LARP1 in targeting the 3′UTR of oncogenes in CRC. Notably, we identify the proto-oncogenic transcription factor MYC as a key LARP1-regulated target. Our data show that LARP1 positively modulates MYC expression by associating with its 3′UTR. In addition, antisense oligonucleotide-mediated blocking of the interaction between LARP1 and the MYC 3′UTR reduces MYC expression and in vitro CRC growth. Furthermore, a systematic analysis of LARP1:protein interactions reveals IGF2BP3 and YBX1 as LARP1-interacting proteins that also regulate MYC expression and CRC development. Finally, we demonstrate that MYC reciprocally modulates LARP1 expression by targeting its enhancer. In summary, our data reveal a critical, previously uncharacterized role of LARP1 in promoting CRC tumorigenesis, validate its direct regulation of the proto-oncogene MYC, and delineate a model of the positive feedback loop between MYC and LARP1 that promotes CRC growth and development.

2022-03-10 | PXD030215 | Pride

Fn multispecies biofilm experiment

Project description:This study was conducted to identify whether F. nucleatum has species or group specific transcriptional responses by analyzing dual species biofilms containing either early or late colonizers and utilizing microarrays to identify altered gene expression of F. nucleatum.

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RNA-seq in HT-29 colorectal cancer cells after F. nucleatum treatment

Project description:To elucidate whether F. nucleatum plays a role in colorectal cancer tumorigenesis, RNA-seq analysis was performed to compare the gene expression profiles of F. nucleatum treated HT-29 cell line or not.

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CD147 mutants affinity purification mass spectrometry from human T cells

Project description:CD147 is known as tumor and regulatory T cell marker and as regulator of chemotaxis, stress response or immune cell function; however, the mode of action of CD147 remains incompletely understood. Using affinity purification mass spectrometry (AP-MS) of HA-tagged CD147 swap and deletion mutants, we examined the CD147 microenvironment. We found previously published interaction partners of CD147 and also identified two highly significant new ones: the plasma membrane calcium ATPase 4 (PMCA4) and moesin. The use of CD147 mutants allowed determining of the respective CD147 parts essential for interaction. Finally, we performed AP-MS of endogenous CD147 from primary human CD4+ T cells and again found CD147 associated with PMCA4.

2016-01-28 | PXD003029 | Pride

CD147 and downstream ADAMTSs promote the tumorigenesis of Kaposi sarcoma-associated herpesvirus

Project description:The Kaposi’s Sarcoma-associated Herpesvirus (KSHV) is the etiologic agent of several human cancers, including Kaposi’s Sarcoma (KS), which preferentially arise in immunocompromised patients but lack of effective therapeutic options. We have previously shown that KSHV or viral protein LANA can upregulate the glycoprotein CD147 (Emmprin) to induce primary endothelial cell invasiveness, which also requires PI3K/Akt and MAPK activation of VEGF production. In the current study, we first time identify the global network controlled by CD147 in KSHV-infected endothelial cells using Illumina microarray analysis. Among these downstream genes, ADAMTS1 and 9, two specific metalloproteases are strongly expressed in AIDS-KS tissues and contributed to KSHV-infected cell invasiveness through regulation of related cytokines production and respective receptors expression. By using a nude mice KS-like model, we found that targeting CD147 and downstream ADAMTSs proteins significantly suppressed KSHV-related tumorigenesis in vivo, which is potentially through impairing extracellular matrix (ECM) formation in tumor microenvironment. Taken together, we think that targeting CD147 and related proteins may represent a promising therapeutic strategy against KSHV-related malignancies.

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