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FAM167A is a key molecule to induce BCR-ABL-independent TKI resistance in CML via noncanonical NF-κB signaling activation
DC Field | Value | Language |
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dc.contributor.author | Yang, Taewoo | - |
dc.contributor.author | Sim, Kyu-Young | - |
dc.contributor.author | Ko, Gwang-Hoon | - |
dc.contributor.author | Ahn, Jae-Sook | - |
dc.contributor.author | Kim, Hyeoung-Joon | - |
dc.contributor.author | Park, Sung-Gyoo | - |
dc.date.accessioned | 2022-03-21T04:10:38Z | - |
dc.date.available | 2022-03-21T04:10:38Z | - |
dc.date.issued | 2022-03-03 | - |
dc.identifier.citation | Journal of Experimental & Clinical Cancer Research. 2022 Mar 03;41(1):82 | - |
dc.identifier.uri | https://doi.org/10.1186/s13046-022-02298-1 | - |
dc.identifier.uri | https://hdl.handle.net/10371/177055 | - |
dc.description.abstract | Abstract
Background BCR-ABL-independent drug resistance is a barrier to curative treatment of chronic myeloid leukemia (CML). However, the molecular pathways underlying BCR-ABL-independent tyrosine kinase inhibitor (TKI) resistance remain unclear. Methods In silico bioinformatic analysis was performed to identify the most active transcription factor and its inducer that contribute to BCR-ABL-independent TKI resistance. Tandem mass spectrometry analysis was performed to identify the receptor for the noncanonical NF-κB activator FAM167A. In vitro and in vivo mouse experiments revealed detailed molecular insights into the functional role of the FAM167A-desmoglein-1 (DSG1) axis in BCL-ABL-independent TKI resistance. CML cells derived from CML patients were analyzed using quantitative reverse transcription PCR and flow cytometry. Results We found that NF-κB had the greatest effect on differential gene expression of BCR-ABL-independent TKI-resistant CML cells. Moreover, we found that the previously uncharacterized protein FAM167A activates the noncanonical NF-κB pathway and induces BCR-ABL-independent TKI resistance. Molecular analyses revealed that FAM167A activates the noncanonical NF-κB pathway by binding to the cell adhesion protein DSG1 to upregulate NF-κB-inducing kinase (NIK) by blocking its ubiquitination. Neutralization of FAM167A in a mouse tumor model reduced noncanonical NF-κB activity and restored sensitivity of cells to TKIs. Furthermore, FAM167A and surface DSG1 levels were highly upregulated in CD34+ CML cells from patients with BCR-ABL-independent TKI-resistant disease. Conclusions These results reveal that FAM167A acts as an essential factor for BCR-ABL-independent TKI resistance in CML by activating the noncanonical NF-κB pathway. In addition, FAM167A may serve as an important target and biomarker for BCR-ABL-independent TKI resistance. | - |
dc.title | FAM167A is a key molecule to induce BCR-ABL-independent TKI resistance in CML via noncanonical NF-κB signaling activation | - |
dc.type | Journal Article | - |
dc.language.rfc3066 | en | - |
dc.rights.holder | The Author(s) | - |
dc.date.updated | 2022-03-06T04:12:24Z | - |
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