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In Silico Discovery of Stapled Peptide Inhibitor Targeting the Nur77‐PPARγ Interaction and Its Anti‐Breast‐Cancer Efficacy
https://orcid.org/0000-0003-3674-256X
AbstractThe binding of peroxisome proliferator‐activated receptor γ (PPARγ) to the orphan nuclear receptor Nur77 facilitates the ubiquitination and degradation of Nur77, and leads to aberrant fatty acid uptake for breast cancer progression. Because of its crucial role in clinical prognosis, the interaction between Nur77 and PPARγ is an attractive target for anti‐breast‐cancer therapy. However, developing an inhibitor of the Nur77‐PPARγ interaction poses a technical challenge due to the absence of the crystal structure of PPARγ and its corresponding interactive model with Nur77. Here, ST‐CY14, a stapled peptide, is identified as a potent modulator of Nur77 with a KD value of 3.247 × 10−8 M by in silico analysis, rational design, and structural modification. ST‐CY14 effectively increases Nur77 protein levels by blocking the Nur77‐PPARγ interaction, thereby inhibiting lipid metabolism in breast tumor cells. Notably, ST‐CY14 significantly suppresses breast cancer growth and bone metastasis in mice. The findings demonstrate the feasibility of exploiting directly Nur77‐PPARγ interaction in breast cancer, and generate what to the best knowledge is the first direct inhibitor of the Nur77‐PPARγ interaction available for impeding fatty acid uptake and therapeutic development.
In Silico Discovery of Stapled Peptide Inhibitor Targeting the Nur77‐PPARγ Interaction and Its Anti‐Breast‐Cancer Efficacy
https://orcid.org/0000-0003-3674-256X
AbstractThe binding of peroxisome proliferator‐activated receptor γ (PPARγ) to the orphan nuclear receptor Nur77 facilitates the ubiquitination and degradation of Nur77, and leads to aberrant fatty acid uptake for breast cancer progression. Because of its crucial role in clinical prognosis, the interaction between Nur77 and PPARγ is an attractive target for anti‐breast‐cancer therapy. However, developing an inhibitor of the Nur77‐PPARγ interaction poses a technical challenge due to the absence of the crystal structure of PPARγ and its corresponding interactive model with Nur77. Here, ST‐CY14, a stapled peptide, is identified as a potent modulator of Nur77 with a KD value of 3.247 × 10−8 M by in silico analysis, rational design, and structural modification. ST‐CY14 effectively increases Nur77 protein levels by blocking the Nur77‐PPARγ interaction, thereby inhibiting lipid metabolism in breast tumor cells. Notably, ST‐CY14 significantly suppresses breast cancer growth and bone metastasis in mice. The findings demonstrate the feasibility of exploiting directly Nur77‐PPARγ interaction in breast cancer, and generate what to the best knowledge is the first direct inhibitor of the Nur77‐PPARγ interaction available for impeding fatty acid uptake and therapeutic development.
In Silico Discovery of Stapled Peptide Inhibitor Targeting the Nur77‐PPARγ Interaction and Its Anti‐Breast‐Cancer Efficacy
https://orcid.org/0000-0003-3674-256X
AbstractThe binding of peroxisome proliferator‐activated receptor γ (PPARγ) to the orphan nuclear receptor Nur77 facilitates the ubiquitination and degradation of Nur77, and leads to aberrant fatty acid uptake for breast cancer progression. Because of its crucial role in clinical prognosis, the interaction between Nur77 and PPARγ is an attractive target for anti‐breast‐cancer therapy. However, developing an inhibitor of the Nur77‐PPARγ interaction poses a technical challenge due to the absence of the crystal structure of PPARγ and its corresponding interactive model with Nur77. Here, ST‐CY14, a stapled peptide, is identified as a potent modulator of Nur77 with a KD value of 3.247 × 10−8 M by in silico analysis, rational design, and structural modification. ST‐CY14 effectively increases Nur77 protein levels by blocking the Nur77‐PPARγ interaction, thereby inhibiting lipid metabolism in breast tumor cells. Notably, ST‐CY14 significantly suppresses breast cancer growth and bone metastasis in mice. The findings demonstrate the feasibility of exploiting directly Nur77‐PPARγ interaction in breast cancer, and generate what to the best knowledge is the first direct inhibitor of the Nur77‐PPARγ interaction available for impeding fatty acid uptake and therapeutic development.
In Silico Discovery of Stapled Peptide Inhibitor Targeting the Nur77‐PPARγ Interaction and Its Anti‐Breast‐Cancer Efficacy
Advanced Science
Bian, Huiting (Autor:in) / Liang, Xiaohui (Autor:in) / Lu, Dong (Autor:in) / Lin, Jiayi (Autor:in) / Lu, Xinchen (Autor:in) / Jin, Jinmei (Autor:in) / Zhang, Lijun (Autor:in) / Wu, Ye (Autor:in) / Chen, Hongzhuan (Autor:in) / Zhang, Weidong (Autor:in)
Advanced Science ; 11
01.07.2024
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| Springer Verlag | 2025
| Wiley | 2023
| Wiley | 2023