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Zou D, Lv M, Chen Y, Niu T, Ma C, Shi C, Huang Z, Wu Y, Yang S, Wang Y, Wu N, Zhang Y, Ouyang G, Mu Q. Down-regulation of Musashi-2 exerts antileukemic effects on acute lymphoblastic leukemia cells and increases sensitivity to dexamethasone. Ann Hematol 2024; 103:141-151. [PMID: 37749318 DOI: 10.1007/s00277-023-05468-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 09/18/2023] [Indexed: 09/27/2023]
Abstract
Musashi-2 (MSI2), implicated in the oncogenesis and propagation of a broad array of malignancies, inclusive of certain leukemia, remains a nascent field of study within the context of acute lymphoblastic leukemia (ALL). Using lentiviral transfection, ALL cells with stable MSI2 knockdown were engineered. A suite of analytic techniques - a CCK-8 assay, flow cytometry, qRT-PCR, and western blotting - were employed to evaluate cellular proliferation, cell cycle arrest, and apoptosis and to confirm differential gene expression. The suppression of MSI2 expression yielded significant results: inhibition of cell proliferation, G0/G1 cell cycle arrest, and induced apoptosis in ALL cell lines. Furthermore, it was noted that MSI2 inhibition heightened the responsiveness of ALL cells to dexamethasone. Significantly, the depletion of MSI2 prompted the translocation of GR from the cytoplasm to the nucleus upon dexamethasone treatment, consequently leading to enhanced sensitivity. Additionally, the FOXO1/4 signaling pathway contributed to the biological effects of ALL cells evoked by MSI2 silencing. Our study offers novel insight into the inhibitory effects of MSI2 suppression on ALL cells, positing MSI2 as a promising therapeutic target in the treatment of ALL.
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Affiliation(s)
- Duobing Zou
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Mei Lv
- Department of Hematology, Ningbo Chinese Medical Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Ying Chen
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Tingting Niu
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Chao Ma
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Cong Shi
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Zhenya Huang
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Ying Wu
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Shujun Yang
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Yun Wang
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Ningning Wu
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Yi Zhang
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China
| | - Guifang Ouyang
- Department of Hematology, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China.
| | - Qitian Mu
- Laboratory of Stem Cell Transplantation, Ningbo First Hospital, Ningbo, Zhejiang, 315000, People's Republic of China.
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Ortega-Campos SM, García-Heredia JM. The Multitasker Protein: A Look at the Multiple Capabilities of NUMB. Cells 2023; 12:333. [PMID: 36672267 PMCID: PMC9856935 DOI: 10.3390/cells12020333] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/08/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
NUMB, a plasma membrane-associated protein originally described in Drosophila, is involved in determining cell function and fate during early stages of development. It is secreted asymmetrically in dividing cells, with one daughter cell inheriting NUMB and the other inheriting its antagonist, NOTCH. NUMB has been proposed as a polarizing agent and has multiple functions, including endocytosis and serving as an adaptor in various cellular pathways such as NOTCH, Hedgehog, and the P53-MDM2 axis. Due to its role in maintaining cellular homeostasis, it has been suggested that NUMB may be involved in various human pathologies such as cancer and Alzheimer's disease. Further research on NUMB could aid in understanding disease mechanisms and advancing the field of personalized medicine and the development of new therapies.
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Affiliation(s)
- Sara M. Ortega-Campos
- Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío (HUVR), Consejo Superior de Investigaciones Científicas, Universidad de Sevilla, 41013 Sevilla, Spain
- CIBERONC, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - José Manuel García-Heredia
- Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío (HUVR), Consejo Superior de Investigaciones Científicas, Universidad de Sevilla, 41013 Sevilla, Spain
- CIBERONC, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Departamento de Bioquímica Vegetal y Biología Molecular, Universidad de Sevilla, 41012 Sevilla, Spain
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Zhang X, Su K, Liu Y, Zhu D, Pan Y, Ke X, Qu Y. Small Molecule Palmatine Targeting Musashi-2 in Colorectal Cancer. Front Pharmacol 2022; 12:793449. [PMID: 35153752 PMCID: PMC8830500 DOI: 10.3389/fphar.2021.793449] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/09/2021] [Indexed: 11/13/2022] Open
Abstract
Musashi-2 (MSI2) is an evolutionally conserved RNA-binding protein and recently considered as an attractive therapeutic target in a wide spectrum of malignancies. However, MSI2-engaged mRNAs are not well profiled, and no MSI2-dependent antagonist is available so far. In the study, we created MSI2 knockout cancer cells and demonstrated that MSI2 is required for the survival of colorectal cancer HCT116 cells but not non-small cell lung cancer A549 cells. In addition, the global profiling of the transcriptome and proteomics of MSI2 knockout colorectal cells revealed 38 candidate MSI2-targeted genes. In a loss–rescue screening, palmatine was identified as a functional MSI2 antagonist inhibiting the MSI2-dependent growth of colorectal cancer cells. Finally, we confirmed that palmatine is directly bound to MSI2 at its C-terminal. Our findings not only indicated MSI2 as a promising therapeutic target of colorectal cancer but also provided a small molecule palmatine as a direct and functional MSI2 antagonist for cancer therapy.
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Affiliation(s)
- Xue Zhang
- Shanghai Frontiers Science Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Kaiyan Su
- Shanghai Frontiers Science Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Pharmacy, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yifan Liu
- Shanghai Frontiers Science Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Darong Zhu
- Shanghai Frontiers Science Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuting Pan
- Shanghai Frontiers Science Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xisong Ke
- Shanghai Frontiers Science Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Xisong Ke, ; Yi Qu,
| | - Yi Qu
- Shanghai Frontiers Science Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Xisong Ke, ; Yi Qu,
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Liu Z, Qi S, Fu Y, Shen L, Li M, Lu J, Zhao X, Zhang H. NUMB knockdown enhanced the anti-tumor role of cisplatin on ovarian cancer cells by inhibiting cell proliferation and epithelial-mesenchymal transition. Transl Cancer Res 2019; 8:379-388. [PMID: 35116770 PMCID: PMC8798962 DOI: 10.21037/tcr.2019.01.35] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/14/2019] [Indexed: 11/23/2022]
Abstract
Background NUMB is an inhibitory regulator of NOTCH signaling, which is critical for the induction of epithelial-mesenchymal transition (EMT). Loss of NUMB expression is correlated with the genesis and development of multiple tumors. Recent studies reported that NUMB expression was upregulated in human ovarian cancer. However, the role of NUMB in ovarian cancer is still unclear. Here, we invested the effect of NUMB knockdown on the proliferation and EMT in ovarian cancer cells and explored the role of NUMB in the effect of cisplatin. Methods Two ovarian cancer cells (OVCAR-3 and SK-OV-3) were used in the experiments. The proliferation and apoptosis of ovarian cancer cells was examined using methyl thiazolyl tetrazolium (MTT) test and flow cytometry assays. The invasion and migration of ovarian cancer cells were examined using Transwell assays. The expression of EMT markers were examined using Simple Western analysis. Results NUMB knockdown inhibited cell proliferation, invasion, and migration in both ovarian cancer cells. NUMB knockdown enhanced cisplatin-induced cell growth inhibiting and apoptosis in both ovarian cancer cells. NUMB knockdown enhanced cisplatin-induced cell invasion in SK-OV-3 cells. NUMB knockdown also decreased the expression of N-cadherin and Vimentin in SK-OV-3 cells. Conclusions NUMB acted as an oncogene in ovarian cancer and NUMB knockdown enhanced the anti-tumor role of cisplatin on ovarian carcinoma cells by inhibiting cell proliferation and EMT.
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Affiliation(s)
- Zhao Liu
- Department of Urology, Qilu Hospital of Shandong University, Jinan 250012, China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Shasha Qi
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan 250021, China.,The Key laboratory for Reproductive Endocrinology, Shandong University, Ministry of Education, Jinan 250021, China
| | - Yibing Fu
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Liang Shen
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Mingjiang Li
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Jiaju Lu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Xingbo Zhao
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Hui Zhang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
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