4.2 Article

TGF-β Type I Receptor Kinase Inhibitor EW-7197 Suppresses Cholestatic Liver Fibrosis by Inhibiting HIF1α-Induced Epithelial Mesenchymal Transition

Journal

CELLULAR PHYSIOLOGY AND BIOCHEMISTRY
Volume 38, Issue 2, Pages 571-588

Publisher

KARGER
DOI: 10.1159/000438651

Keywords

Cholestatic liver injury; Hepatic stellate cell; TGF-beta; HIF1 alpha; Epithelial mesenchymal transition; EW-7197

Funding

  1. Korea Science and Engineering Foundation (KOSEF) grant (MEST) [20090093972]
  2. National Research Foundation of Korea - Korean government [NRF-2014R1A1A2005644]

Ask authors/readers for more resources

Background/Aims: Hypoxia is an environmental factor that aggravates liver fibrosis. HIF1 alpha activates hepatic stellate cells (HSCs) and increases transforming growth factor-beta (TGF-beta) signaling and the epithelial mesenchymal transition (EMT), accelerating the progression of fibrosis. We evaluated the anti-fibrotic therapeutic potential of a small-molecule inhibitor of TGF-beta type I receptor kinase, EW-7197, on HIF1 alpha-derived TGF-beta signaling in cholestatic liver fibrosis. Methods: We used a bile duct ligation (BDL)-operated rat model to characterize the role of HIF1 alpha-derived TGF-beta signaling in liver fibrosis. Cellular assays were performed in LX-2 cells (human immortalized HSCs). The anti-fibrotic effects of EW-7197 in liver tissues and HSCs were investigated via biochemical assays, immunohistochemistry (IHC), immunofluorescence (IF), chromatin immunoprecipitation (ChIP) assays, real-time PCR, and western blotting. Results: In our BDL rat model, orally administered EW-7197 inhibited fibrosis and attenuated HIF1 alpha-induced activation of HSCs and EMT in vivo. In addition, EW-7197 inhibited HIF1 alpha-derived HS[activation and expression of EMT markers in LX-2 cells in vitro. Conclusion: This study suggests that FW-7197 exhibits potential as a treatment for liver fibrosis because it inhibits HIF1 alpha-induced TGF-beta signaling. (C) 2016 The Author(s) Published by S. Karger AG, Basel

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.2
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Review Biochemistry & Molecular Biology

The force awakens: metastatic dormant cancer cells

So-Yeon Park, Jeong-Seok Nam

EXPERIMENTAL AND MOLECULAR MEDICINE (2020)

Editorial Material Medicine, General & Internal

Kynurenine pathway enzyme KMO in cancer progression: A tip of the Iceberg

So-Yeon Park, Jeong-Seok Nam

EBIOMEDICINE (2020)

Review Biochemistry & Molecular Biology

The Hippo-YAP Signaling as Guardian in the Pool of Intestinal Stem Cells

Yoojin Seo, So-Yeon Park, Hyung-Sik Kim, Jeong-Seok Nam

BIOMEDICINES (2020)

Article Biochemistry & Molecular Biology

The Small-Molecule Wnt Inhibitor ICG-001 Efficiently Inhibits Colorectal Cancer Stemness and Metastasis by Suppressing MEIS1 Expression

Jang-Hyun Choi, Tae-Young Jang, So-El Jeon, Jee-Heun Kim, Choong-Jae Lee, Hyeon-Ji Yun, Ji-Youn Jung, So-Yeon Park, Jeong-Seok Nam

Summary: Recurrence and metastasis are main challenges in CRC treatment, driven by a small subpopulation of cells called cancer stem-like cells (CSCs). Transcriptomic profiling showed upregulation of Wnt pathway and stemness genes in metastatic tumors, and treatment with small-molecule Wnt inhibitor ICG-001 effectively suppressed CSC behavior and metastasis.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2021)

Article Oncology

Lipid raft-disrupting miltefosine preferentially induces the death of colorectal cancer stem-like cells

So-Yeon Park, Jee-Heun Kim, Jang-Hyun Choi, Choong-Jae Lee, Won-Jae Lee, Sehoon Park, Zee-Yong Park, Jeong-Heum Baek, Jeong-Seok Nam

Summary: This study highlights the important role of lipid rafts (LRs) in colorectal cancer, where an LR-disrupting alkylphospholipid drug can suppress CSC populations and their self-renewal activities. By inhibiting the LR/CHEK1 axis, the drug forces CSCs to enter inappropriate mitosis, leading to catastrophic cell death.

CLINICAL AND TRANSLATIONAL MEDICINE (2021)

Article Multidisciplinary Sciences

Full-color micro-LED display with photo-patternable and highly ambient-stable perovskite quantum dot/siloxane composite as color conversion layers

Hyung Cheoul Shim, Juho Kim, So Yeon Park, Bong Sung Kim, Bongkyun Jang, Hak-Joo Lee, Areum Kim, Seungmin Hyun, Jae-Hyun Kim

Summary: In this study, color conversion layers (CCLs) for full-color micro-LED display were successfully fabricated using a perovskite quantum dot (PQD)/siloxane composite. The PQD was ligand exchanged with a silane compound and then surface activated using a halide-anion containing salt, allowing non-polar organic solvents to be used without damaging the PQD. The ligand-exchanged PQD exhibited high dispersibility and excellent atmospheric stability in the siloxane matrix. The resulting full-color micro-LED display achieved a resolution of about 25.4 pixels per inch (PPI) with a 1 mm pixel pitch, and demonstrated the possibility of a flexible display that can be operated without damage even with a bending radius of 5 mm.

SCIENTIFIC REPORTS (2023)

Article Biochemistry & Molecular Biology

SEC22B inhibition attenuates colorectal cancer aggressiveness and autophagic flux under unfavorable environment

Jang-Hyun Choi, So-Yeon Park, Choong-Jae Lee, Jee-Heun Kim, Tae -Young Jang, So -El Jeon, Youngsoo Jun, Jeong-Seok Nam

Summary: Autophagy has both pro-survival and pro-death functions in cancer, depending on the context. In this study, the researchers investigated the expression patterns of SNAREs, a family of proteins involved in autophagy, in colorectal cancer (CRC) tissues. They found that SEC22B, a vesicle SNARE, was highly expressed in tumor tissues, especially in metastatic tissues. Knocking down SEC22B inhibited CRC cell survival and growth, particularly under stressful conditions, and reduced the number of stress-induced autophagic vacuoles. Furthermore, SEC22B knockdown attenuated liver metastasis in a CRC cell xenograft mouse model. This study suggests that SEC22B plays a crucial role in enhancing the aggressiveness of CRC cells and may be a potential therapeutic target.

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS (2023)

Article Multidisciplinary Sciences

Effects of nature on restorative and cognitive benefits in indoor environment

Jee Heon Rhee, Brian Schermer, Gisung Han, So Yeon Park, Kyung Hoon Lee

Summary: This study examines the effects of natural exposure in indoor environments on restoration quality and cognitive ability. The results show that indoor environments with nature have restorative and cognitive benefits compared to baseline conditions.

SCIENTIFIC REPORTS (2023)

Article Multidisciplinary Sciences

Comparison of translucency, thickness, and gap width of thermoformed and 3D-printed clear aligners using micro-CT and spectrophotometer

So Yeon Park, Sung-Hwan Choi, Hyung-Seog Yu, Su-Jung Kim, Hoon Kim, Ki Beom Kim, Jung-Yul Cha

Summary: This study compared the thickness and gap width of thermoformed and 3D-printed clear aligners using micro-CT, and evaluated their translucency using spectrophotometer. The results showed that the translucency of the 3D-printed CAs varied depending on the cleaning methods, with the PC group having higher translucency than the PA group. Thermoformed CAs had a decrease in thickness after the manufacturing process, while 3D-printed CAs had an increase in thickness.

SCIENTIFIC REPORTS (2023)

Review Biochemistry & Molecular Biology

Clone wars: From molecules to cell competition in intestinal stem cell homeostasis and disease

Gabriele Colozza, So-Yeon Park, Bon-Kyoung Koo

Summary: Tumors gain a competitive edge over intestinal stem cells by exploiting the self-renewal processes of the stem cells. The dynamics of stem cells in the intestines are regulated by a network of molecular signals and competition for limited space. The Wnt signaling pathway and its inhibitors play a crucial role in maintaining the balance between self-renewal and differentiation. Intestinal cancer cells bypass these regulatory mechanisms, allowing them to outcompete normal cells.

EXPERIMENTAL AND MOLECULAR MEDICINE (2022)

Article Medicine, Research & Experimental

DCLK1 promotes colorectal cancer stemness and aggressiveness via the XRCC5/COX2 axis

Jee-Heun Kim, So-Yeon Park, So-El Jeon, Jang-Hyun Choi, Choong-Jae Lee, Tae-Young Jang, Hyeon-Ji Yun, Yuno Lee, Pilho Kim, Sang Hee Cho, Ji Shin Lee, Jeong-Seok Nam

Summary: This study identifies a novel mechanism by which DCLK1 regulates the aggressiveness of colorectal cancer (CRC). The researchers found that DCLK1 binds and phosphorylates XRCC5, which leads to the activation of cyclooxygenase-2 and enhanced prostaglandin E2 production, resulting in an inflammatory tumor microenvironment and increased aggressiveness of CRC cells. The inhibition of DCLK1 kinase activity was shown to impair tumor seeding and growth in CRC mouse models. This study expands the understanding of the biological function of DCLK1 in CRC.

THERANOSTICS (2022)

Article Medicine, Research & Experimental

Dysadherin awakens mechanical forces and promotes colorectal cancer progression

So-Yeon Park, Choong-Jae Lee, Jang-Hyun Choi, Jee-Heun Kim, Won-Jae Lee, Tae-Young Jang, So-El Jeon, Jae-Hyun Kim, Sang-Hee Cho, Ji-Shin Lee, Jeong-Seok Nam

Summary: This study reveals the role of Dysadherin in the progression of colorectal cancer (CRC) by regulating the mechanotransduction pathway, promoting cancer cell growth, migration, and invasion. It highlights Dysadherin as a potential therapeutic target for CRC.

THERANOSTICS (2022)

Article Medicine, Research & Experimental

Aberrant activation of the CD45-Wnt signaling axis promotes stemness and therapy resistance in colorectal cancer cells

So-Yeon Park, Ji-Young Kim, Gyu-Beom Jang, Jang-Hyun Choi, Jee-Heun Kim, Choong-Jae Lee, Sunjae Lee, Jeong-Heum Baek, Kwan-Kyu Park, Jin-Man Kim, Hee Jin Chang, Nam-Chul Cho, Jeong-Seok Nam

Summary: This study identified an increased expression of CD45 in CRC (EpCAM+) epithelial cells after CRT treatment. High CD45 expression promoted CRC cell survival upon 5-fluorouracil or radiation treatment, while CD45 depletion sensitized CRC cells to CRT. CD45 was found to be preferentially expressed in cancer stem-like cells (CSCs) and played a crucial role in CSC functions such as cancer initiation, repopulation, and metastasis.

THERANOSTICS (2021)

No Data Available