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Qiu J, Zhao Z, Suo H, Paraghamian SE, Hawkins GM, Sun W, Zhang X, Hao T, Deng B, Shen X, Zhou C, Bae-Jump V. Linoleic acid exhibits anti-proliferative and anti-invasive activities in endometrial cancer cells and a transgenic model of endometrial cancer. Cancer Biol Ther 2024; 25:2325130. [PMID: 38465855 PMCID: PMC10936646 DOI: 10.1080/15384047.2024.2325130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/26/2024] [Indexed: 03/12/2024] Open
Abstract
Emerging evidence has provided considerable insights into the integral function of reprogramming fatty acid metabolism in the carcinogenesis and progression of endometrial cancer. Linoleic acid, an essential fatty acid with the highest consumption in the Western diet regimen, has shown pro-tumorigenic or anti-tumorigenic effects on tumor cell growth and invasion in multiple types of cancer. However, the biological role of linoleic acid in endometrial cancer remains unclear. In the present study, we aimed to investigate the functional impact of linoleic acid on cell proliferation, invasion, and tumor growth in endometrial cancer cells and in a transgenic mouse model of endometrial cancer. The results showed that Linoleic acid significantly inhibited the proliferation of endometrial cancer cells in a dose-dependent manner. The treatment of HEC-1A and KLE cells with linoleic acid effectively increased intracellular reactive oxygen species (ROS) production, decreased mitochondrial membrane potential, caused cell cycle G1 arrest, and induced intrinsic and extrinsic apoptosis pathways. The anti-invasive ability of linoleic acid was found to be associated with the epithelial-mesenchymal transition process in both cell lines, including the decreased expression of N-cadherin, snail, and vimentin. Furthermore, treatment of Lkb1fl/flp53fl/fl transgenic mice with linoleic acid for four weeks significantly reduced the growth of endometrial tumors and decreased the expression of VEGF, vimentin, Ki67, and cyclin D1 in tumor tissues. Our findings demonstrate that linoleic acid exhibits anti-proliferative and anti-invasive activities in endometrial cancer cell lines and the Lkb1fl/flp53fl/fl mouse model of endometrial cancer, thus providing a pre-clinical basis for future dietary interventions with linoleic acid in endometrial cancer.
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Affiliation(s)
- Jianqing Qiu
- Department of Obstetrics and Gynecology, the Second Hospital of Shandong University, Jinan, PR, China
| | - Ziyi Zhao
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital MedicalUniversity, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Hongyan Suo
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital MedicalUniversity, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Sarah E. Paraghamian
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Gabrielle M. Hawkins
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Wenchuan Sun
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Xin Zhang
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital MedicalUniversity, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Tianran Hao
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Beor Deng
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital MedicalUniversity, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Xiaochang Shen
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital MedicalUniversity, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Chunxiao Zhou
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Victoria Bae-Jump
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Liu J, Li SM, Tang YJ, Cao JL, Hou WS, Wang AQ, Wang C, Jin CH. Jaceosidin induces apoptosis and inhibits migration in AGS gastric cancer cells by regulating ROS-mediated signaling pathways. Redox Rep 2024; 29:2313366. [PMID: 38318818 PMCID: PMC10854459 DOI: 10.1080/13510002.2024.2313366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024] Open
Abstract
Jaceosidin (JAC) is a natural flavonoid with anti-oxidant and other pharmacological activities; however, its anti-cancer mechanism remains unclear. We investigated the mechanism of action of JAC in gastric cancer cells. Cytotoxicity and apoptosis assays showed that JAC effectively killed multiple gastric cancer cells and induced apoptosis in human gastric adenocarcinoma AGS cells via the mitochondrial pathway. Network pharmacological analysis suggested that its activity was linked to reactive oxygen species (ROS), AKT, and MAPK signaling pathways. Furthermore, JAC accumulated ROS to up-regulate p-JNK, p-p38, and IκB-α protein expressions and down-regulate the p-ERK, p-STAT3, and NF-κB protein expressions. Cell cycle assay results showed that JAC accumulated ROS to up-regulate p21 and p27 protein expressions and down-regulate p-AKT, CDK2, CDK4, CDK6, Cyclin D1, and Cyclin E protein expressions to induce G0/G1 phase arrest. Cell migration assay results showed JAC accumulated ROS to down-regulate Wnt-3a, p-GSK-3β, N-cadherin, and β-catenin protein expressions and up-regulate E-cadherin protein expression to inhibit migration. Furthermore, N-acetyl cysteine pre-treatment prevented the change of these protein expressions. In summary, JAC induced apoptosis and G0/G1 phase arrest and inhibited migration through ROS-mediated signaling pathways in AGS cells.
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Affiliation(s)
- Jian Liu
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, People’s Republic of China
| | - Shu-Mei Li
- Hemodialysis Center, Daqing Oilfield General Hospital, Daqing, People’s Republic of China
| | - Yan-Jun Tang
- College of Food Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, People’s Republic of China
| | - Jing-Long Cao
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, People’s Republic of China
| | - Wen-Shuang Hou
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, People’s Republic of China
| | - An-Qi Wang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, People’s Republic of China
| | - Chang Wang
- College of Science, Heilongjiang Bayi Agricultural University, Daqing, People’s Republic of China
| | - Cheng-Hao Jin
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, People’s Republic of China
- College of Food Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, People’s Republic of China
- National Coarse Cereals Engineering Research Center, Daqing, People’s Republic of China
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3
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Park WH. Propyl gallate induces human pulmonary fibroblast cell death through the regulation of Bax and caspase-3. Ann Med 2024; 56:2319853. [PMID: 38373208 PMCID: PMC10878342 DOI: 10.1080/07853890.2024.2319853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 02/11/2024] [Indexed: 02/21/2024] Open
Abstract
Propyl gallate (PG) has been found to exert an inhibitory effect on the growth of different cell types, including lung cancer cells. However, little is known about the cytotoxicological effects of PG specifically on normal primary lung cells. The current study examined the cellular effects and cell death resulting from PG treatment in human pulmonary fibroblast (HPF) cells. DNA flow cytometry results demonstrated that PG (100-1,600 μM) had a significant impact on the cell cycle, leading to G1 phase arrest. Notably, 1,600 μM PG slightly increased the number of sub-G1 cells. Additionally, PG (400-1,600 μM) resulted in the initiation of cell death, a process that coincided with a loss of mitochondrial membrane potential (MMP; ΔΨm). This loss of MMP (ΔΨm) was evaluated using a FACS cytometer. In PG-treated HPF cells, inhibitors targeting pan-caspase, caspase-3, caspase-8, and caspase-9 showed no significant impact on the quantity of annexin V-positive and MMP (ΔΨm) loss cells. The administration of siRNA targeting Bax or caspase-3 demonstrated a significant attenuation of PG-induced cell death in HPF cells. However, the use of siRNAs targeting p53, Bcl-2, or caspase-8 did not exhibit any notable effect on cell death. Furthermore, none of the tested MAPK inhibitors, including MEK, c-Jun N-terminal kinase (JNK), and p38, showed any impact on PG-induced cell death or the loss of MMP (ΔΨm) in HPF cells. In conclusion, PG induces G1 phase arrest of the cell cycle and cell death in HPF cells through apoptosis and/or necrosis. The observed HPF cell death is mediated by the modulation of Bax and caspase-3. These findings offer insights into the cytotoxic and molecular effects of PG on normal HPF cells.
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Affiliation(s)
- Woo Hyun Park
- Department of Physiology, Medical School, Jeonbuk National University, Jeonju, Jeollabuk, Republic of Korea
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Pathania AS, Chava H, Balusu R, Pasupulati AK, Coulter DW, Challagundla KB. The crosstalk between non-coding RNAs and cell-cycle events: A new frontier in cancer therapy. Mol Ther Oncol 2024; 32:200785. [PMID: 38595981 PMCID: PMC10973673 DOI: 10.1016/j.omton.2024.200785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
The cell cycle comprises sequential events during which a cell duplicates its genome and divides it into two daughter cells. This process is tightly regulated to ensure that the daughter cell receives identical copied chromosomal DNA and that any errors in the DNA during replication are correctly repaired. Cyclins and their enzyme partners, cyclin-dependent kinases (CDKs), are critical regulators of G- to M-phase transitions during the cell cycle. Mitogenic signals induce the formation of the cyclin/CDK complexes, resulting in phosphorylation and activation of the CDKs. Once activated, cyclin/CDK complexes phosphorylate specific substrates that drive the cell cycle forward. The sequential activation and inactivation of cyclin-CDK complexes are tightly controlled by activating and inactivating phosphorylation events induced by cell-cycle proteins. The non-coding RNAs (ncRNAs), which do not code for proteins, regulate cell-cycle proteins at the transcriptional and translational levels, thereby controlling their expression at different cell-cycle phases. Deregulation of ncRNAs can cause abnormal expression patterns of cell-cycle-regulating proteins, resulting in abnormalities in cell-cycle regulation and cancer development. This review explores how ncRNA dysregulation can disrupt cell division balance and discusses potential therapeutic approaches targeting these ncRNAs to control cell-cycle events in cancer treatment.
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Affiliation(s)
- Anup S. Pathania
- Department of Biochemistry and Molecular Biology & The Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Haritha Chava
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Ramesh Balusu
- Department of Hematologic Malignancies and Cellular Therapeutics, Kansas University Medical Center, Kansas City, KS 66160, USA
| | - Anil K. Pasupulati
- Department of Biochemistry, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Don W. Coulter
- Department of Pediatrics, Division of Hematology/Oncology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Kishore B. Challagundla
- Department of Biochemistry and Molecular Biology & The Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
- The Child Health Research Institute, University of Nebraska Medical Center, Omaha, NE 68198, USA
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5
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Zhou HY, Wang YC, Wang T, Wu W, Cao YY, Zhang BC, Wang MD, Mao P. CCNA2 and NEK2 regulate glioblastoma progression by targeting the cell cycle. Oncol Lett 2024; 27:206. [PMID: 38516683 PMCID: PMC10956385 DOI: 10.3892/ol.2024.14339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/05/2024] [Indexed: 03/23/2024] Open
Abstract
Glioblastoma (GBM) is characterized by significant heterogeneity, leading to poor survival outcomes for patients, despite the implementation of comprehensive treatment strategies. The roles of cyclin A2 (CCNA2) and NIMA related kinase 2 (NEK2) have been extensively studied in numerous cancers, but their specific functions in GBM remain to be elucidated. The present study aimed to investigate the potential molecular mechanisms of CCNA2 and NEK2 in GBM. CCNA2 and NEK2 expression and prognosis in glioma were evaluated by bioinformatics methods. In addition, the distribution of CCNA2 and NEK2 expression in GBM subsets was determined using pseudo-time analysis and tricycle position of single-cell sequencing. Gene Expression Omnibus and Kyoto Encyclopedia of Genes and Genome databases were employed and enrichment analyses were conducted to investigate potential signaling pathways in GBM subsets and a nomogram was established to predict 1-, 2- and 3-year overall survival probability in GBM. CCNA2 and NEK2 expression levels were further validated by western blot analysis and immunohistochemical staining in GBM samples. High expression of CCNA2 and NEK2 in glioma indicates poor clinical outcomes. Single-cell sequencing of GBM revealed that these genes were upregulated in a subset of positive neural progenitor cells (P-NPCs), which showed significant proliferation and progression properties and may activate G2M checkpoint pathways. A comprehensive nomogram predicts 1-, 2- and 3-year overall survival probability in GBM by considering P-NPCs, age, chemotherapy and radiotherapy scores. CCNA2 and NEK2 regulate glioblastoma progression by targeting the cell cycle, thus indicating the potential of novel therapy directed to CCNA2 and NEK2 in GBM.
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Affiliation(s)
- Hao-Yu Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yi-Chang Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Tuo Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Wei Wu
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yi-Yang Cao
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Bei-Chen Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Mao-De Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Ping Mao
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Xu W, Huang Z, Xiao Y, Li W, Xu M, Zhao Q, Yi P. HNRNPC promotes estrogen receptor-positive breast cancer cell cycle by stabilizing WDR77 mRNA in an m6A-dependent manner. Mol Carcinog 2024; 63:859-873. [PMID: 38353359 DOI: 10.1002/mc.23693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/13/2024] [Accepted: 01/17/2024] [Indexed: 04/13/2024]
Abstract
Breast cancer has become the most commonly diagnosed cancer. Heterogeneous nuclear ribonucleoprotein C (HNRNPC), a reader of N6-methyladenosine (m6A), has been observed to be upregulated in various types of cancer. Nevertheless, the role of HNRNPC in breast cancer and whether it is regulated by m6A modification deserve further investigation. The expression of HNRNPC in breast cancer was examined by quantitative real-time polymerase chain reaction and western blot analysis. RNA immunoprecipitation was performed to validate the binding relationships between HNRNPC and WD repeat domain 77 (WDR77). The effects of HNRNPC and m6A regulators on WDR77 were investigated by actinomycin D assay. The experiments in vivo were conducted in xenograft models. In this research, we found that HNRNPC was highly expressed in breast cancer, and played a crucial role in cell growth, especially in the luminal subtype. HNRNPC could combine and stabilize WDR77 mRNA. WDR77 successively drove the G1/S phase transition in the cell cycle and promoted cell proliferation. Notably, this regulation axis was closely tied to the m6A modification status of WDR77 mRNA. Overall, a critical regulatory mechanism was identified, as well as promising targets for potential treatment strategies for luminal breast cancer.
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Affiliation(s)
- Wenjie Xu
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ziwei Huang
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yunxiao Xiao
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenhui Li
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming Xu
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiuyang Zhao
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pengfei Yi
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Song M, Tian X, Lu M, Zhang X, Ma K, Lv Z, Wang Z, Hu Y, Xun C, Zhang Z, Wang S. [Corrigendum] Genistein exerts growth inhibition on human osteosarcoma MG-63 cells via PPARγ pathway. Int J Oncol 2024; 64:47. [PMID: 38488025 PMCID: PMC11000533 DOI: 10.3892/ijo.2024.5635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 12/03/2014] [Indexed: 04/11/2024] Open
Abstract
Subsequently to the publication of the above article, an interested reader drew to the authors' attention that, in Fig. 1D on p. 1134, the data panels showing the results for the 'Control' and '1 μmol/l GW9662' experiments (on the left hand side of the figure) were overlapping, such that these data had been derived from the same original source where they were intended to show the results from differently performed experiments. The authors were able to re‑examine their original data, and realize that the data for the '1 μmol/l GW9662' panel had been selected incorrectly. The corrected version of Fig. 1, now featuring the correct data for the '1 μmol/l GW9662' experiment in Fig. 1D, is shown on the next page, The authors confirm their error did not grossly affect either the results of the conclusions reported in the paper, and are grateful to the Editor of International Journal of Oncology for allowing them this opportunity to publish a Corrigendum. They also apologize to the readership for any inconvenience caused. [International Journal of Oncology 46: 1131-1140, 2015; DOI: 10.3892/ijo.2015.2829].
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Affiliation(s)
- Mingzhi Song
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Xiliang Tian
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Ming Lu
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Xianbin Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Kai Ma
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Zhichao Lv
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Zhenxing Wang
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Yang Hu
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Chong Xun
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Zhen Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Shouyu Wang
- Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
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Wang X, Sun J, Liu Y, Lin Z, Jiang X, Ye Y, Lv C, Lian X, Xu W, Luo S, Liao S, Chen Z, Wang S. Trps1 predicts poor prognosis in advanced high grade serous ovarian carcinoma. Int J Cancer 2024; 154:1639-1651. [PMID: 38212905 DOI: 10.1002/ijc.34844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/17/2023] [Accepted: 12/22/2023] [Indexed: 01/13/2024]
Abstract
TRPS1 is aberrantly expressed in a variety of tumors, including breast, prostate, and gastric cancers, and is strongly associated with tumorigenesis or prognosis. However, the role of TRPS1 in high grade serous ovarian carcinoma (HGSC) is unknown. We investigated the relationship between TRPS1 expression and clinicopathology in HGSC patients. The tumor-related regulatory mechanisms of TRPS1 was explored through in vivo and vitro experiments. The results showed that TRPS1 was highly expressed in HGSC compared to normal tissues. It was also linked to the cell proliferation index Ki67 and poor prognosis. In vivo experiments showed that knockdown of TRPS1 could inhibit tumor growth. In vitro experiments, knockdown of TRPS1 inhibited the proliferation of ovarian cancer cells. TRPS1 exerted its regulatory role as a transcription factor, binding to the PSAT1 promoter and promoting the expression of PSAT1 gene. Meanwhile, PSAT1 was positively correlated with CCND1 expression. These results suggest that TRPS1 affects HGSC proliferation and cell cycle by regulating PSAT1 and thus CCND1 expression.
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Affiliation(s)
- Xiaojiang Wang
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Molecular Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Jiandong Sun
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Yue Liu
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Zihang Lin
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Xia Jiang
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Yuhong Ye
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
- Department of Pathology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Chengyu Lv
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
- Department of Obstetrics and Gynecology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xiuli Lian
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Weiwei Xu
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Shanshan Luo
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Shumin Liao
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Zhangting Chen
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Shie Wang
- Key Laboratory of Stem Cell Engineering and Regenerative Medicine of Fujian Province University, Fujian Medical University, Fuzhou, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
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9
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Zhang X, He L, Li Y, Qiu Y, Hu W, Lu W, Du H, Yang D. Compound 225# inhibits the proliferation of human colorectal cancer cells by promoting cell cycle arrest and apoptosis induction. Oncol Rep 2024; 51:70. [PMID: 38577924 PMCID: PMC11017819 DOI: 10.3892/or.2024.8729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 12/01/2023] [Indexed: 04/06/2024] Open
Abstract
Colorectal cancer (CRC) ranks as the second leading cause of cancer‑related death worldwide due to its aggressive nature. After surgical resection, >50% of patients with CRC require adjuvant therapy. As a result, eradicating cancer cells with medications is a promising method to treat patients with CRC. In the present study, a novel compound was synthesized, which was termed compound 225#. The inhibitory activity of compound 225# against CRC was determined by MTT assay, EdU fluorescence labeling and colony formation assay; the effects of compound 225# on the cell cycle progression and apoptosis of CRC cells were detected by flow cytometry and western blotting; and the changes in autophagic flux after the administration of compound 225# were detected using the double fluorescence fusion protein mCherry‑GFP‑LC3B and western blotting. The results demonstrated that compound 225# exhibited antiproliferative properties, inhibiting the proliferation and expansion of CRC cell lines in a time‑ and dose‑dependent manner. Furthermore, compound 225# triggered G2/M cell cycle arrest by influencing the expression of cell cycle regulators, such as CDK1, cyclin A1 and cyclin B1, which is also closely related to the activation of DNA damage pathways. The cleavage of PARP and increased protein expression levels of PUMA suggested that apoptosis was triggered after treatment with compound 225#. Moreover, the increase in LC3‑II expression and stimulation of autophagic flux indicated the activation of an autophagy pathway. Notably, compound 225# induced autophagy, which was associated with endoplasmic reticulum (ER) stress. In accordance with the in vitro findings, the in vivo results demonstrated that compound 225# effectively inhibited the growth of HCT116 tumors in mice without causing any changes in their body weight. Collectively, the present results demonstrated that compound 225# not only inhibited proliferation and promoted G2/M‑phase cell cycle arrest and apoptosis, but also initiated cytoprotective autophagy in CRC cells by activating ER stress pathways. Taken together, these findings provide an experimental basis for the evaluation of compound 225# as a novel potential medication for CRC treatment.
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Affiliation(s)
- Xiaoxue Zhang
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404020, P.R. China
| | - Liujun He
- College of Pharmacy (International Academy of Targeted Therapeutics and Innovation), Chongqing University of Arts and Sciences, Chongqing 402160, P.R. China
| | - Yong Li
- College of Pharmacy (International Academy of Targeted Therapeutics and Innovation), Chongqing University of Arts and Sciences, Chongqing 402160, P.R. China
| | - Yifei Qiu
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404020, P.R. China
| | - Wujing Hu
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404020, P.R. China
| | - Wanying Lu
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404020, P.R. China
| | - Huihui Du
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404020, P.R. China
| | - Donglin Yang
- College of Pharmacy (International Academy of Targeted Therapeutics and Innovation), Chongqing University of Arts and Sciences, Chongqing 402160, P.R. China
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10
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Guerrero P, Perez-Carrasco R. Choice of friction coefficient deeply affects tissue behaviour in stochastic epithelial vertex models. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230051. [PMID: 38432320 PMCID: PMC10909505 DOI: 10.1098/rstb.2023.0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 12/06/2023] [Indexed: 03/05/2024] Open
Abstract
To understand the mechanisms that coordinate the formation of biological tissues, the use of numerical implementations is necessary. The complexity of such models involves many assumptions and parameter choices that result in unpredictable consequences, obstructing the comparison with experimental data. Here, we focus on vertex models, a family of spatial models used extensively to simulate the dynamics of epithelial tissues. Usually, in the literature, the choice of the friction coefficient is not addressed using quasi-static deformation arguments that generally do not apply to realistic scenarios. In this manuscript, we discuss the role that the choice of friction coefficient has on the relaxation times and consequently in the conditions of cell cycle progression and division. We explore the effects that these changes have on the morphology, growth rate and topological transitions of the tissue dynamics. These results provide a deeper understanding of the role that an accurate mechanical description plays in the use of vertex models as inference tools. This article is part of a discussion meeting issue 'Causes and consequences of stochastic processes in development and disease'.
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Affiliation(s)
- Pilar Guerrero
- Grupo Interdisciplinar de Sistemas Complejos, Departamento de Matemáticas, Universidad Carlos III de Madrid, 28911 Leganés, Madrid, Spain
| | - Ruben Perez-Carrasco
- Department of Life Sciences, Imperial College London, South Kensington, London, SW7 2AZ, UK
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11
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Jiang L, Wan Y, Pan J, Mao X, Sun X, Zan L, Wang H. Transcriptomic analysis reveals the inhibitory effect of beta-sitosterol on proliferation of bovine preadipocytes. Anim Biotechnol 2024:2339406. [PMID: 38634284 DOI: 10.1080/10495398.2024.2339406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Fat deposition affects beef quantity and quality via preadipocyte proliferation. Beta-sitosterol, a natural small molecular compound, has various functions, such as anti-inflammation, antibacterial, and anticancer properties. The mechanism of action of Beta-sitosterol on bovine preadipocytes remains unclear. This study, based on RNA-seq, reveals the impact of Beta -sitosterol on the proliferation of bovine preadipocytes. Compared to the control group, Beta-sitosterol demonstrated a more pronounced inhibitory effect on cell proliferation after 48 hours of treatment than after 24 hours, as evidenced by the results of EdU staining and flow cytometry. RNA-seq and Western Blot analyses further substantiated these findings. Our results suggest that the impact of Beta-sitosterol on the proliferation of bovine preadipocytes is not significant after a 24-hour treatment. It is only after extending the treatment time to 48 hours that Beta-sitosterol may induce cell cycle arrest at the G2/M phase by suppressing the expression of CCNB1, thereby inhibiting the proliferation of bovine preadipocytes.
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Affiliation(s)
- Lei Jiang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yuan Wan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Jinhai Pan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaoyu Mao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaolei Sun
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Linsen Zan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
- National Beef Cattle Improvement Centre, Yangling, Shaanxi, China
| | - Hongbao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
- National Beef Cattle Improvement Centre, Yangling, Shaanxi, China
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12
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Bundy J, Shaw J, Hammel M, Nguyen J, Robbins C, Mercier I, Suryanarayanan A. Role of β3 subunit of the GABA type A receptor in triple negative breast cancer proliferation, migration, and cell cycle progression. Cell Cycle 2024:1-18. [PMID: 38623967 DOI: 10.1080/15384101.2024.2340912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 02/29/2024] [Indexed: 04/17/2024] Open
Abstract
Triple negative breast cancer (TNBC) is known for its heterogeneous nature and aggressive onset. The unresponsiveness to hormone therapies and immunotherapy and the toxicity of chemotherapeutics account for the limited treatment options for TNBC. Ion channels have emerged as possible therapeutic candidates for cancer therapy, but little is known about how ligand gated ion channels, specifically, GABA type A ligand-gated ion channel receptors (GABAAR), affect cancer pathogenesis. Our results show that the GABAA β3 subunit is expressed at higher levels in TNBC cell lines than non-tumorigenic cells, therefore contributing to the idea that limiting the GABAAR via knockdown of the GABAA β3 subunit is a potential strategy for decreasing the proliferation and migration of TNBC cells. We employed pharmacological and genetic approaches to investigate the role of the GABAA β3 subunit in TNBC proliferation, migration, and cell cycle progression. The results suggest that pharmacological antagonism or genetic knockdown of GABAA β3 subunit decreases TNBC proliferation and migration. In addition, GABAA β3 subunit knockdown causes cell cycle arrest in TNBC cell lines via decreased cyclin D1 and increased p21 expression. Our findings suggest that membrane bound GABAA receptors containing the β3 subunit can be further developed as a potential novel target for the treatment of TNBC.
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Affiliation(s)
- J Bundy
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph's University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - J Shaw
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph's University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - M Hammel
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph's University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - J Nguyen
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph's University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - C Robbins
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph's University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | | | - A Suryanarayanan
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph's University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
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13
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Vasavan B, Das N, Kahnamouei P, Trombley C, Swan A. Skp2-Cyclin A Interaction Is Necessary for Mitotic Entry and Maintenance of Diploidy. J Mol Biol 2024; 436:168505. [PMID: 38423454 DOI: 10.1016/j.jmb.2024.168505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 02/21/2024] [Accepted: 02/21/2024] [Indexed: 03/02/2024]
Abstract
Skp2, the substrate recognition component of the SCFSkp2 ubiquitin ligase, has been implicated in the targeted destruction of a number of key cell cycle regulators and the promotion of S-phase. One of its critical targets is the Cyclin dependent kinase (Cdk) inhibitor p27, and indeed the overexpression of Skp2 in a number of cancers is directly correlated with the premature degradation of p27. Skp2 was first identified as a protein that interacts with Cyclin A in transformed cells, but its role in this complex has remained unclear. In this paper, we demonstrate that Skp2 interacts with Cyclin A in Drosophila and is required to maintain Cyclin A levels and permit mitotic entry. Failure of mitotic entry in Skp2 mutant cells results in polyploidy. If these cells enter mitosis again they are unable to properly segregate their chromosomes, leading to checkpoint dependent cell cycle arrest or apoptosis. Thus, Skp2 is required for mitosis and for maintaining diploidy and genome stability.
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Affiliation(s)
- Biju Vasavan
- Department of Biological Sciences, University of Windsor, Windsor, ON N9B 2P1, Canada
| | - Nilanjana Das
- Department of Biological Sciences, University of Windsor, Windsor, ON N9B 2P1, Canada
| | - Paria Kahnamouei
- Department of Biological Sciences, University of Windsor, Windsor, ON N9B 2P1, Canada
| | - Chantelle Trombley
- Department of Biological Sciences, University of Windsor, Windsor, ON N9B 2P1, Canada
| | - Andrew Swan
- Department of Biological Sciences, University of Windsor, Windsor, ON N9B 2P1, Canada.
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14
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Audrey A, Kok YP, Yu S, de Haan L, van de Kooij B, van den Tempel N, Chen M, de Boer HR, van der Vegt B, van Vugt MATM. RAD52-dependent mitotic DNA synthesis is required for genome stability in Cyclin E1-overexpressing cells. Cell Rep 2024; 43:114116. [PMID: 38625790 DOI: 10.1016/j.celrep.2024.114116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/28/2024] [Accepted: 03/29/2024] [Indexed: 04/18/2024] Open
Abstract
Overexpression of Cyclin E1 perturbs DNA replication, resulting in DNA lesions and genomic instability. Consequently, Cyclin E1-overexpressing cancer cells increasingly rely on DNA repair, including RAD52-mediated break-induced replication during interphase. We show that not all DNA lesions induced by Cyclin E1 overexpression are resolved during interphase. While DNA lesions upon Cyclin E1 overexpression are induced in S phase, a significant fraction of these lesions is transmitted into mitosis. Cyclin E1 overexpression triggers mitotic DNA synthesis (MiDAS) in a RAD52-dependent fashion. Chemical or genetic inactivation of MiDAS enhances mitotic aberrations and persistent DNA damage. Mitosis-specific degradation of RAD52 prevents Cyclin E1-induced MiDAS and reduces the viability of Cyclin E1-overexpressing cells, underscoring the relevance of RAD52 during mitosis to maintain genomic integrity. Finally, analysis of breast cancer samples reveals a positive correlation between Cyclin E1 amplification and RAD52 expression. These findings demonstrate the importance of suppressing mitotic defects in Cyclin E1-overexpressing cells through RAD52.
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Affiliation(s)
- Anastasia Audrey
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Yannick P Kok
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Shibo Yu
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Lauren de Haan
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Bert van de Kooij
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Nathalie van den Tempel
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Mengting Chen
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - H Rudolf de Boer
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Bert van der Vegt
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Marcel A T M van Vugt
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands.
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15
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Tanke NT, Liu Z, Gore MT, Bougaran P, Linares MB, Marvin A, Sharma A, Oatley M, Yu T, Quigley K, Vest S, Cook JG, Bautch VL. Endothelial Cell Flow-Mediated Quiescence Is Temporally Regulated and Utilizes the Cell Cycle Inhibitor p27. Arterioscler Thromb Vasc Biol 2024. [PMID: 38602102 DOI: 10.1161/atvbaha.124.320671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/27/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND Endothelial cells regulate their cell cycle as blood vessels remodel and transition to quiescence downstream of blood flow-induced mechanotransduction. Laminar blood flow leads to quiescence, but how flow-mediated quiescence is established and maintained is poorly understood. METHODS Primary human endothelial cells were exposed to laminar flow regimens and gene expression manipulations, and quiescence depth was analyzed via time-to-cell cycle reentry after flow cessation. Mouse and zebrafish endothelial expression patterns were examined via scRNA-seq analysis, and mutant or morphant fish lacking p27 were analyzed for endothelial cell cycle regulation and in vivo cellular behaviors. RESULTS Arterial flow-exposed endothelial cells had a distinct transcriptome, and they first entered a deep quiescence, then transitioned to shallow quiescence under homeostatic maintenance conditions. In contrast, venous flow-exposed endothelial cells entered deep quiescence early that did not change with homeostasis. The cell cycle inhibitor p27 (CDKN1B) was required to establish endothelial flow-mediated quiescence, and expression levels positively correlated with quiescence depth. p27 loss in vivo led to endothelial cell cycle upregulation and ectopic sprouting, consistent with loss of quiescence. HES1 and ID3, transcriptional repressors of p27 upregulated by arterial flow, were required for quiescence depth changes and the reduced p27 levels associated with shallow quiescence. CONCLUSIONS Endothelial cell flow-mediated quiescence has unique properties and temporal regulation of quiescence depth that depends on the flow stimulus. These findings are consistent with a model whereby flow-mediated endothelial cell quiescence depth is temporally regulated downstream of p27 transcriptional regulation by HES1 and ID3. The findings are important in understanding endothelial cell quiescence misregulation that leads to vascular dysfunction and disease.
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Affiliation(s)
- Natalie T Tanke
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel Hill. (N.T.T., V.L.B.)
| | - Ziqing Liu
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Michaelanthony T Gore
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Pauline Bougaran
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Mary B Linares
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Allison Marvin
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Arya Sharma
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Morgan Oatley
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Tianji Yu
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Kaitlyn Quigley
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Sarah Vest
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
| | - Jeanette Gowen Cook
- Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill. (J.G.C.)
| | - Victoria L Bautch
- Curriculum in Cell Biology and Physiology, The University of North Carolina at Chapel Hill. (N.T.T., V.L.B.)
- Department of Biology, The University of North Carolina at Chapel Hill. (Z.L., M.T.G., P.B., M.B.L., A.M., A.S., M.O., T.Y., K.Q., S.V., V.L.B.)
- McAllister Heart Institute, The University of North Carolina at Chapel Hill. (V.L.B.)
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16
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Sun L, Wang Y, Li J, Xu S, Xu S, Li J. Bruceantinol works as a CDK2/4/6 inhibitor to inhibit the growth of breast cancer cells. Chem Biol Interact 2024:110999. [PMID: 38608999 DOI: 10.1016/j.cbi.2024.110999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/03/2024] [Accepted: 04/07/2024] [Indexed: 04/14/2024]
Abstract
Bruceantinol (BOL), isolated from the dried fruit of the Brucea javanica (L.) Merr., exhibits cytotoxic effects on breast cancer cells. However, the underlying mechanism remains to be fully addressed. In this paper, the MCF-7 and MDA-MB-231 human breast cancer cell lines were used as experimental models to uncover how BOL inhibits breast cancer cell growth. The effects of BOL on cell growth, proliferation, the cell cycle, and apoptosis were investigated using the MTT assays, EdU incorporation assays, and flow cytometry, respectively. Bioinformatics techniques were applied to predict the key targets of BOL in breast cancer. Subsequent validation of these targets and the anti-breast cancer mechanism of BOL was conducted through Western blotting, RT-PCR, siRNA transfection, and molecular docking analysis. The results demonstrated that BOL dose- and time-dependently reduced the growth of both cell lines, impeded cell proliferation, disrupted the cell cycle, and induced necrosis in MCF-7 cells and apoptosis in MDA-MB-231 cells. Furthermore, CDK2/4/6 were identified as BOL targets, and their knockdown reduced cell sensitivity to BOL. BOL was found to potentially bind with CDK2/4/6 to facilitate protein degradation through the proteasome pathway. Additionally, BOL activated ERK in MDA-MB-231 cells, and this activation was required for BOL's functions in these cells. Collectively, BOL may act as an inhibitor of CDK2/4/6 to exert anti-breast cancer effects. Its effects on cell growth and CDK2/4/6 expression may also depend on ERK activation in HRs-HER2- breast cancer cells. These results suggest the potential of using BOL for treating breast cancer.
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Affiliation(s)
- Li Sun
- Key Lab of Traditional Chinese Medicine Pathogenesis and Syndrome Differentiation Theory and Application, Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China; College of Traditional Chinese Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China.
| | - Yumeng Wang
- College of Traditional Chinese Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
| | - Jia Li
- Key Lab of Traditional Chinese Medicine Pathogenesis and Syndrome Differentiation Theory and Application, Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China; College of Traditional Chinese Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
| | - Shiqing Xu
- Key Lab of Traditional Chinese Medicine Pathogenesis and Syndrome Differentiation Theory and Application, Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
| | - Shuang Xu
- College of Traditional Chinese Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China
| | - Jun Li
- Key Lab of Traditional Chinese Medicine Pathogenesis and Syndrome Differentiation Theory and Application, Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning, China.
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17
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Feng Y, Tang D, Wang J. Emerging role and function of SPDL1 in human health and diseases. Open Med (Wars) 2024; 19:20240922. [PMID: 38623460 PMCID: PMC11017184 DOI: 10.1515/med-2024-0922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 01/17/2024] [Accepted: 01/25/2024] [Indexed: 04/17/2024] Open
Abstract
SPDL1 (spindle apparatus coiled-coil protein 1), also referred to as CCDC99, is a recently identified gene involved in cell cycle regulation. SPDL1 encodes a protein, hSpindly, which plays a critical role in the maintenance of spindle checkpoint silencing during mitosis. hSpindly coordinates microtubule attachment by promoting kinesin recruitment and mitotic checkpoint signaling. Moreover, the protein performs numerous biological functions in vivo and its aberrant expression is closely associated with abnormal neuronal development, pulmonary interstitial fibrosis, and malignant tumor development. In this review, we provide an overview of studies that reveal the characteristics of SPDL1 and of the protein encoded by it, as well as its biological and tumor-promoting functions.
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Affiliation(s)
- Yuejiao Feng
- Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Shanghai, 200062, China
- The Fifth School of Clinical Medicine, Anhui Medical University, Anhui, 230022, China
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Donghao Tang
- Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Shanghai, 200062, China
- The Fifth School of Clinical Medicine, Anhui Medical University, Anhui, 230022, China
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Jie Wang
- Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Shanghai, 200062, China
- The Fifth School of Clinical Medicine, Anhui Medical University, Anhui, 230022, China
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
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18
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Zhang X, Cai Q, Li L, Wang L, Hu Y, Chen X, Zhang D, Persson S, Yuan Z. OsMADS6-OsMADS32 and REP1 control palea cellular heterogeneity and morphogenesis in rice. Dev Cell 2024:S1534-5807(24)00194-1. [PMID: 38593802 DOI: 10.1016/j.devcel.2024.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 01/02/2024] [Accepted: 03/12/2024] [Indexed: 04/11/2024]
Abstract
Precise regulation of cell proliferation and differentiation is vital for organ morphology. Rice palea, serving as sepal, comprises two distinct regions: the marginal region (MRP) and body of palea (BOP), housing heterogeneous cell populations, which makes it an ideal system for studying organ morphogenesis. We report that the transcription factor (TF) REP1 promotes epidermal cell proliferation and differentiation in the BOP, resulting in hard silicified protrusion cells, by regulating the cyclin-dependent kinase gene, OsCDKB1;1. Conversely, TFs OsMADS6 and OsMADS32 are expressed exclusively in the MRP, where they limit cell division rates by inhibiting OsCDKB2;1 expression and promote endoreduplication, yielding elongated epidermal cells. Furthermore, reciprocal inhibition between the OsMADS6-OsMADS32 complex and REP1 fine-tunes the balance between cell division and differentiation during palea morphogenesis. We further show the functional conservation of these organ identity genes in heterogeneous cell growth in Arabidopsis, emphasizing a critical framework for controlling cellular heterogeneity in organ morphogenesis.
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Affiliation(s)
- Xuelian Zhang
- Joint International Research Laboratory of Metabolic & Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qiang Cai
- Joint International Research Laboratory of Metabolic & Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; State Key Laboratory of Hybrid Rice, College of Life Science, Wuhan University, Wuhan 430072, China
| | - Ling Li
- Joint International Research Laboratory of Metabolic & Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Li Wang
- Joint International Research Laboratory of Metabolic & Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yun Hu
- Joint International Research Laboratory of Metabolic & Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaofei Chen
- Joint International Research Laboratory of Metabolic & Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Dabing Zhang
- Joint International Research Laboratory of Metabolic & Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; Yazhou Bay Institute of Deepsea Sci-Tech, Shanghai Jiao Tong University, Sanya 572024, China
| | - Staffan Persson
- Joint International Research Laboratory of Metabolic & Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Plant & Environmental Sciences, Copenhagen Plant Science Center, University of Copenhagen, 1871 Frederiksberg, Denmark
| | - Zheng Yuan
- Joint International Research Laboratory of Metabolic & Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; Yazhou Bay Institute of Deepsea Sci-Tech, Shanghai Jiao Tong University, Sanya 572024, China.
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19
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Zeng X, Su H, Liu Z, Wang Y, Lu Z, Cheng S. Integrative analysis of the bladder cancer from a cell cycle NCAM1 perspective at both single cell and bulk resolution. Environ Toxicol 2024. [PMID: 38581187 DOI: 10.1002/tox.24260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/06/2024] [Accepted: 03/23/2024] [Indexed: 04/08/2024]
Abstract
INTRODUCTION Bladder cancer (BLCA) is a prevalent and deadly form of urinary cancer, and there is a need for effective therapies, particularly for muscle-invasive bladder cancer (MIBC). Cell cycle inhibitors show promise in restoring control of the cell cycle in BLCA cells, but their clinical prognosis evaluation is limited. METHODS Transcriptome and scRNA-seq data were collected from the Cancer Genome Atlas Program (TCGA)-BLCA and GSE190888 cohort, respectively. R software and the Seurat package were used for data analysis, including cell quality control, dimensionality reduction, and identification of differentially expressed genes. Genes related to the cell cycle were obtained from the genecards website, and a protein-protein interaction network analysis was performed using cytoscape software. Functional enrichment analysis, immune infiltration analysis, drug sensitivity analysis, and molecular docking were conducted using various tools and packages. BLCA cell lines were cultured and transfected for in vitro experimental assays, including RT-qPCR analysis, and CCK-8 cell viability assays. RESULTS We identified 32 genes as independent risk or protective factors for BLCA prediction. Functional enrichment analysis revealed their involvement in cell cycle regulation, apoptosis, and various signaling pathways. Using these genes, we developed a nomogram for predicting BLCA survival, which displayed high prognosis stratification efficacy in BLCA patients. Four cell cycle associated key genes identified, including NCAM1, HBB, CKD6, and CTLA4. We also identified the main cell types in BLCA patients and investigated the functional differences between epithelial cells based on their expression levels of key genes. Furthermore, we observed a high positive correlative relationship between the infiltration of cancer-associated fibroblasts and the risk score value. Finally, we conducted in vitro experiments to demonstrate the suppressive role of NCAM1 in BLCA cell proliferation. CONCLUSION These findings suggest that cell cycle associated genes could serve as potential biomarkers for predicting BLCA prognosis and may represent therapeutic targets for the development of more effective therapies. Hopefully, these findings provide valuable insights into the molecular mechanisms and potential therapeutic targets in BLCA from the perspective of cell cycle. Moreover, NCAM1 was a novel cell proliferation suppressor in the BLCA carcinogenesis.
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Affiliation(s)
- Xiangju Zeng
- Department of Outpatient, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Hao Su
- Department of Urology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ziqi Liu
- Department of Acupuncture and Moxibustion, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Yinhuai Wang
- Department of Urology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhijie Lu
- Department of Urology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Shunhua Cheng
- Department of Urology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
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20
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Rona G, Miwatani-Minter B, Zhang Q, Goldberg HV, Kerzhnerman MA, Howard JB, Simoneschi D, Lane E, Hobbs JW, Sassani E, Wang AA, Keegan S, Laverty DJ, Piett CG, Pongor LS, Xu ML, Andrade J, Thomas A, Sicinski P, Askenazi M, Ueberheide B, Fenyö D, Nagel ZD, Pagano M. CDK-independent role of D-type cyclins in regulating DNA mismatch repair. Mol Cell 2024; 84:1224-1242.e13. [PMID: 38458201 PMCID: PMC10997477 DOI: 10.1016/j.molcel.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 01/04/2024] [Accepted: 02/09/2024] [Indexed: 03/10/2024]
Abstract
Although mismatch repair (MMR) is essential for correcting DNA replication errors, it can also recognize other lesions, such as oxidized bases. In G0 and G1, MMR is kept in check through unknown mechanisms as it is error-prone during these cell cycle phases. We show that in mammalian cells, D-type cyclins are recruited to sites of oxidative DNA damage in a PCNA- and p21-dependent manner. D-type cyclins inhibit the proteasomal degradation of p21, which competes with MMR proteins for binding to PCNA, thereby inhibiting MMR. The ability of D-type cyclins to limit MMR is CDK4- and CDK6-independent and is conserved in G0 and G1. At the G1/S transition, the timely, cullin-RING ubiquitin ligase (CRL)-dependent degradation of D-type cyclins and p21 enables MMR activity to efficiently repair DNA replication errors. Persistent expression of D-type cyclins during S-phase inhibits the binding of MMR proteins to PCNA, increases the mutational burden, and promotes microsatellite instability.
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Affiliation(s)
- Gergely Rona
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA; Howard Hughes Medical Institute, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Bearach Miwatani-Minter
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Qingyue Zhang
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Hailey V Goldberg
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Marc A Kerzhnerman
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Jesse B Howard
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Daniele Simoneschi
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Ethan Lane
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - John W Hobbs
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Elizabeth Sassani
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Andrew A Wang
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Sarah Keegan
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA; Institute for Systems Genetics, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Daniel J Laverty
- Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Cortt G Piett
- Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Lorinc S Pongor
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; Cancer Genomics and Epigenetics Core Group, Hungarian Centre of Excellence for Molecular Medicine, Szeged 6728, Hungary
| | - Miranda Li Xu
- Department of Cancer Biology, Dana-Farber Cancer Institute, and Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Joshua Andrade
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Anish Thomas
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Piotr Sicinski
- Department of Cancer Biology, Dana-Farber Cancer Institute, and Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02215, USA; Department of Histology and Embryology, Center for Biostructure Research, Medical University of Warsaw, Chalubinskiego 5, 02-004 Warsaw, Poland
| | - Manor Askenazi
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Biomedical Hosting LLC, 33 Lewis Avenue, Arlington, MA 02474, USA
| | - Beatrix Ueberheide
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - David Fenyö
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA; Institute for Systems Genetics, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Zachary D Nagel
- Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Michele Pagano
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY 10016, USA; Howard Hughes Medical Institute, NYU Grossman School of Medicine, New York, NY 10016, USA.
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21
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Roberts EL, Greenwood J, Kapadia N, Auchynnikava T, Basu S, Nurse P. CDK activity at the centrosome regulates the cell cycle. Cell Rep 2024; 43:114066. [PMID: 38578823 DOI: 10.1016/j.celrep.2024.114066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 02/28/2024] [Accepted: 03/21/2024] [Indexed: 04/07/2024] Open
Abstract
In human cells and yeast, an intact "hydrophobic patch" substrate docking site is needed for mitotic cyclin centrosomal localization. A hydrophobic patch mutant (HPM) of the fission yeast mitotic cyclin Cdc13 cannot enter mitosis, but whether this is due to defective centrosomal localization or defective cyclin-substrate docking more widely is unknown. Here, we show that artificially restoring Cdc13-HPM centrosomal localization promotes mitotic entry and increases CDK (cyclin-dependent kinase) substrate phosphorylation at the centrosome and in the cytoplasm. We also show that the S-phase B-cyclin hydrophobic patch is required for centrosomal localization but not for S phase. We propose that the hydrophobic patch is essential for mitosis due to its requirement for the local concentration of cyclin-CDK with CDK substrates and regulators at the centrosome. Our findings emphasize the central importance of the centrosome as a hub coordinating cell-cycle control and explain why the cyclin hydrophobic patch is essential for mitosis.
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Affiliation(s)
- Emma L Roberts
- Cell Cycle Laboratory, The Francis Crick Institute, NW1 1AT London, UK.
| | - Jessica Greenwood
- Cell Cycle Laboratory, The Francis Crick Institute, NW1 1AT London, UK
| | - Nitin Kapadia
- Cell Cycle Laboratory, The Francis Crick Institute, NW1 1AT London, UK
| | - Tania Auchynnikava
- Cell Cycle Laboratory, The Francis Crick Institute, NW1 1AT London, UK; Protein Analysis and Proteomics Platform, The Francis Crick Institute, NW1 1AT London, UK
| | - Souradeep Basu
- Cell Cycle Laboratory, The Francis Crick Institute, NW1 1AT London, UK
| | - Paul Nurse
- Cell Cycle Laboratory, The Francis Crick Institute, NW1 1AT London, UK; Laboratory of Yeast Genetics and Cell Biology, Rockefeller University, New York, NY 10065, USA
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22
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Chen N, Zhou H, He B, Peng S, Ding F, Liu QH, Ma Z, Liu W, Xu B. Melatonin promotes cell cycle progression of neural stem cells subjected to manganese via Nurr1. Environ Toxicol 2024. [PMID: 38563506 DOI: 10.1002/tox.24258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/04/2024] [Accepted: 03/23/2024] [Indexed: 04/04/2024]
Abstract
Excessive exposure to manganese (Mn) through drinking water and food during pregnancy significantly heightens the likelihood of neurodevelopmental damage in offspring. Multiple studies have indicated that melatonin (Mel) may help to relieve neurodevelopmental disorders caused by Mn, but potential mechanisms underlying this effect require further exploration. Here, we utilized primary neural stem cells (NSCs) as a model to elucidate the molecular mechanism underlying the protective function of Mel on Mn-induced cell proliferation dysfunction and cycle arrest. Our results showed that Mn disrupted the cell cycle in NSCs by suppressing positive regulatory proteins (CDK2, Cyclin A, Cyclin D1, and E2F1) and enhancing negative ones (p27KIP1 and p57KIP2), leading to cell proliferation dysfunction. Mel inhibited the Mn-dependent changes to these proteins and the cell cycle through nuclear receptor-related protein 1 (Nurr1), thus alleviating the proliferation dysfunction. Knockdown of Nurr1 using lentivirus-expressed shRNA in NSCs resulted in a diminished protective effect of Mel. We concluded that Mel mitigated Mn-induced proliferation dysfunction and cycle arrest in NSCs through Nurr1.
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Affiliation(s)
- Nan Chen
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, PR China
| | - Han Zhou
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, PR China
| | - Bin He
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, PR China
| | - Sen Peng
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, PR China
| | - Feng Ding
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, PR China
| | - Qi-Hao Liu
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, PR China
| | - Zhuo Ma
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, PR China
- Key laboratory of Environmental Stress and Chronic Disease Control and Prevention (China Medical University), Ministry of Education, Shenyang, PR China
| | - Wei Liu
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, PR China
- Key laboratory of Environmental Stress and Chronic Disease Control and Prevention (China Medical University), Ministry of Education, Shenyang, PR China
| | - Bin Xu
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, PR China
- Key laboratory of Environmental Stress and Chronic Disease Control and Prevention (China Medical University), Ministry of Education, Shenyang, PR China
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23
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Qu HQ, Glessner JT, Qu J, Liu Y, Watson D, Chang X, Saeidian AH, Qiu H, Mentch FD, Connolly JJ, Hakonarson H. High Comorbidity of Pediatric Cancers in Patients with Birth Defects: Insights from Whole Genome Sequencing Analysis of Copy Number Variations. Transl Res 2024; 266:49-56. [PMID: 37989391 DOI: 10.1016/j.trsl.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/01/2023] [Accepted: 11/17/2023] [Indexed: 11/23/2023]
Abstract
BACKGROUND Patients with birth defects (BD) exhibit an elevated risk of cancer. We aimed to investigate the potential link between pediatric cancers and BDs, exploring the hypothesis of shared genetic defects contributing to the coexistence of these conditions. METHODS This study included 1454 probands with BDs (704 females and 750 males), including 619 (42.3%) with and 845 (57.7%) without co-occurrence of pediatric onset cancers. Whole genome sequencing (WGS) was done at 30X coverage through the Kids First/Gabriella Miller X01 Program. RESULTS 8211 CNV loci were called from the 1454 unrelated individuals. 191 CNV loci classified as pathogenic/likely pathogenic (P/LP) were identified in 309 (21.3%) patients, with 124 (40.1%) of these patients having pediatric onset cancers. The most common group of CNVs are pathogenic deletions covering the region ChrX:52,863,011-55,652,521, seen in 162 patients including 17 males. Large recurrent P/LP duplications >5MB were detected in 33 patients. CONCLUSIONS This study revealed that P/LP CNVs were common in a large cohort of BD patients with high rate of pediatric cancers. We present a comprehensive spectrum of P/LP CNVs in patients with BDs and various cancers. Notably, deletions involving E2F target genes and genes implicated in mitotic spindle assembly and G2/M checkpoint were identified, potentially disrupting cell-cycle progression and providing mechanistic insights into the concurrent occurrence of BDs and cancers.
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Affiliation(s)
- Hui-Qi Qu
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - Joseph T Glessner
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA; Department of Pediatrics, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA; Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - Jingchun Qu
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - Yichuan Liu
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - Deborah Watson
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - Xiao Chang
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - Amir Hossein Saeidian
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - Haijun Qiu
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - Frank D Mentch
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - John J Connolly
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA
| | - Hakon Hakonarson
- Center for Applied Genomics (CAG), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA; Department of Pediatrics, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA; Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA; Division of Pulmonary Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, 19104, USA; Faculty of Medicine, University of Iceland, Reykjavik, Iceland.
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24
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Yang Z, Chen G. Inhibition of Proliferation and Induction of Apoptosis in Prostatic Carcinoma DU145 Cells by Polysaccharides from Yunnan Rosa roxburghii Tratt. Molecules 2024; 29:1575. [PMID: 38611854 PMCID: PMC11013296 DOI: 10.3390/molecules29071575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
OBJECTIVE This study aimed to investigate methodologies for the extraction and purification of polysaccharides from Rosa roxburghii Tratt fruits and their impact on various cellular processes in prostate cancer DU145 cells, including survival rate, migration, invasion, cell cycle, and apoptosis. RESULTS Compared to the control group, the polysaccharide exhibited a significant reduction in the viability, migration, and invasion rates of DU145 cells in a time- and dose-dependent manner within the polysaccharide-treated groups. Additionally, it effectively arrested the cell cycle of DU145 cells at the G0/G1 phase by downregulating the expressions of CDK-4, CDK-6, and Cyclin D1. Furthermore, it induced apoptosis by upregulating the expressions of Caspase 3, Caspase 8, Caspase 9, and BAX. METHODS Polysaccharides were extracted from Rosa roxburghii Tratt sourced from Yunnan, China. Extraction and decolorization methods were optimized using response surface methodology, based on a single-factor experiment. Polysaccharide purification was carried out using DEAE-52 cellulose and Sephadex G-100 column chromatography. The optimal dosage of R. roxburghii Tratt polysaccharide affecting DU145 cells was determined using the CCK-8 assay. Cell migration and invasion were assessed using transwell and scratch assays. Flow cytometry was employed to analyze the effects on the cell cycle and apoptosis. Western blotting and Quantitative real-time PCR were utilized to examine protein and mRNA expressions in DU145 cells, respectively. CONCLUSIONS Rosa roxburghii Tratt polysaccharides, consisting of D-mannose, L-rhamnose, N-acetyl-D-glucosamine, D-galacturonic acid, D-glucose, D-galactcose, D-xylose, L-arabinose, and L-fucose, possess the ability to hinder DU145 cell proliferation, migration, and invasion while inducing apoptosis through the modulation of relevant protein and gene expressions.
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Affiliation(s)
| | - Guiyuan Chen
- School of Basic Medicine, Dali University, Dali 671003, China;
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25
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Campbell CE, Webber K, Bard JE, Chaves LD, Osinski JM, Gronostajski RM. Nuclear Factor I A and Nuclear Factor I B Are Jointly Required for Mouse Postnatal Neural Stem Cell Self-Renewal. Stem Cells Dev 2024; 33:153-167. [PMID: 38366751 DOI: 10.1089/scd.2022.0204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024] Open
Abstract
Mouse postnatal neural stem cells (pNSCs) can be expanded in vitro in the presence of epidermal growth factor and fibroblast growth factor 2 and upon removal of these factors cease proliferation and generate neurons, astrocytes, and oligodendrocytes. The genetic requirements for self-renewal and lineage-commitment of pNSCs are incompletely understood. In this study, we show that the transcription factors NFIA and NFIB, previously shown individually, to be essential for the normal commitment of pNSCs to the astrocytic lineage in vivo, are jointly required for normal self-renewal of pNSCs in vitro and in vivo. Using conditional knockout alleles of Nfia and Nfib, we show that the simultaneous loss of these two genes under self-renewal conditions in vitro reduces the expression of the proliferation markers PCNA and Ki67, eliminates clonogenicity of the cells, reduces the number of cells in S phase, and induces aberrant differentiation primarily into the neuroblast lineage. This phenotype requires the loss of both genes and is not seen upon loss of Nfia or Nfib alone, nor with combined loss of Nfia and Nfix or Nfib and Nfix. These data demonstrate a unique combined requirement for both Nfia and Nfib for pNSC self-renewal.
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Affiliation(s)
- Christine E Campbell
- Department of Biochemistry, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
- Genetics, Genomics & Bioinformatics Graduate Program, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
| | - Karstin Webber
- Genetics, Genomics & Bioinformatics Graduate Program, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
- Stem Cells in Regenerative Medicine Training Program, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
| | - Jonathan E Bard
- Department of Biochemistry, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
- Genetics, Genomics & Bioinformatics Graduate Program, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
| | - Lee D Chaves
- Department of Internal Medicine, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
| | - Jason M Osinski
- Department of Biochemistry, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
| | - Richard M Gronostajski
- Department of Biochemistry, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
- Genetics, Genomics & Bioinformatics Graduate Program, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
- Stem Cells in Regenerative Medicine Training Program, New York State Center of Excellence in Bioinformatics and Life Sciences, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
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26
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Wang P, Zhang H, Guo K, Liu C, Chen S, Pu B, Chen S, Feng T, Jiao H, Gao C. Rapamycin inhibits B16 melanoma cell viability invitro and invivo by inducing autophagy and inhibiting the mTOR/p70‑S6k pathway. Oncol Lett 2024; 27:140. [PMID: 38385108 PMCID: PMC10877231 DOI: 10.3892/ol.2024.14273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/19/2024] [Indexed: 02/23/2024] Open
Abstract
Rapamycin is an immunosuppressant that has been shown to prevent tumor growth following organ transplantation. However, its exact mode of antitumor action remains unknown. The present study used the B16-F10 (B16) murine melanoma model to explore the antitumor mechanism of rapamycin, and it was revealed that rapamycin reduced B16 cell viability in vitro and in vivo. In addition, in vitro and in vivo, the results of western blotting showed that rapamycin reduced Bcl2 expression, and enhanced the protein expression levels of cleaved caspase 3 and Bax, indicating that it can induce the apoptosis of B16 melanoma cells. Furthermore, the results of cell cycle analysis and western blotting showed that rapamycin induced B16 cell cycle arrest in the G1 phase, based on the reduction in the protein expression levels of CDK1, cyclin D1 and CDK4, as well as the increase in the percentage of cells in G1 phase. Rapamycin also significantly increased the number of autophagosomes in B16 melanoma cells, as determined by transmission electron microscopy. Furthermore, the results of RT-qPCR and western blotting showed that rapamycin upregulated the protein expression levels of microtubule-associated protein light chain 3 (LC3) and Beclin-1, while downregulating the expression of p62 in vitro and in vivo, thus indicating that rapamycin could trigger cellular autophagy. The present study revealed that rapamycin in combination with chloroquine (CQ) further increased LC3 expression compared with that in the CQ group, suggesting that rapamycin induced an increase in autophagy in B16 cells. Furthermore, the results of western blotting showed that rapamycin blocked the phosphorylation of p70 ribosomal S6 kinase (p70-S6k) and mammalian target of rapamycin (mTOR) proteins in vitro and in vivo, thus suggesting that rapamycin may exert its antitumor effect by inhibiting the phosphorylation of the mTOR/p70-S6k pathway. In conclusion, rapamycin may inhibit tumor growth by inducing cellular G1 phase arrest and apoptosis. In addition, rapamycin may exert its antitumor effects by inducing the autophagy of B16 melanoma cells in vitro and in vivo, and the mTOR/p70-S6k signaling pathway may be involved in this process.
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Affiliation(s)
- Penghui Wang
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Haifang Zhang
- Hainan Institute for Drug Control, Haikou, Hainan 570216, P.R. China
| | - Kaikai Guo
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Chun Liu
- Hainan Institute for Drug Control, Haikou, Hainan 570216, P.R. China
| | - Shimin Chen
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Baopeng Pu
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Sirun Chen
- Hainan Medical University Press, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Tong Feng
- School of Pharmacy, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Hanyi Jiao
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Chang Gao
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan 570100, P.R. China
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Cao JL, Li SM, Tang YJ, Hou WS, Wang AQ, Li TZ, Jin CH. Network pharmacology analysis and experimental verification of the antitumor effect and molecular mechanism of isocryptomerin on HepG2 cells. Drug Dev Res 2024; 85:e22165. [PMID: 38400652 DOI: 10.1002/ddr.22165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/30/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
Isocryptomerin (ISO) is a flavonoid isolated from the natural medicine Selaginellae Herba, which has various pharmacological activities. This study investigated the antitumor effect and underlying molecular mechanism of ISO on hepatocellular carcinoma (HCC) HepG2 cells. The cell viability assay revealed that ISO has a considerable killing effect on HCC cell lines. The apoptosis assay showed that ISO induced mitochondria-dependent apoptosis through the Bad/cyto-c/cleaved (cle)-caspase-3/cleaved (cle)-PARP pathway. The network pharmacological analysis found 13 key target genes, and epidermal growth factor receptor (EGFR), AKT, mitogen-activated protein kinase (MAPK), and reactive oxygen species (ROS) signaling pathways were strongly associated with ISO against HCC. Further verification of the results showed that ISO induced apoptosis by increasing p-p38 and p-JNK expression and decreasing p-EGFR, p-SRC, p-ERK, and p-STAT3 expression. Furthermore, ISO induced G0/G1 phase arrest by downregulating p-AKT, Cyclin D, and CDK 4 expression and upregulating p21 and p27 expression in HepG2 cells. Moreover, ISO inhibited HepG2 cell migration by decreasing p-GSK-3β, β-catenin, and N-cadherin expression and increasing E-cadherin expression. Additionally, ISO promoted ROS accumulation in HepG2 cells, and ISO-induced apoptosis, arrest cell cycle, and inhibition of migration were reversed by an ROS scavenger, N-acetyl- l-cysteine. Overall, ISO induced cell apoptosis and cell cycle arrest and inhibited cell migration by ROS-mediated EGFR, AKT, and MAPK signaling pathways in HepG2 cells.
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Affiliation(s)
- Jing-Long Cao
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Shu-Mei Li
- Hemodialysis Center, Daqing Oilfield General Hospital, Daqing, China
| | - Yan-Jun Tang
- Department of Food Science and Engineering, College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Wen-Shuang Hou
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - An-Qi Wang
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Tian-Zhu Li
- Department of Molecular Biology, College of Basic Medical Science, Chifeng University, Chifeng, China
| | - Cheng-Hao Jin
- Department of Biochemistry and Molecular Biology, College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
- Department of Food Science and Engineering, College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
- National Coarse Cereals Engineering Research Center, Daqing, China
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Liu Y, Yu W, Ren P, Zhang T. [Corrigendum] Upregulation of centromere protein M promotes tumorigenesis: A potential predictive target for cancer in humans. Mol Med Rep 2024; 29:62. [PMID: 38391045 PMCID: PMC10915705 DOI: 10.3892/mmr.2024.13186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 07/20/2020] [Indexed: 02/24/2024] Open
Abstract
Subsequently to the publication of this paper, the authors' have realized that Fig. 2A on p. 3927 was published featuring an error; specifically, there was an unintentional duplication of one of the representative images chosen for the figure (the same image was selected to represent the 'BRCA/Normal' and 'Tumor/LUSC' experiments). Additionally, the sample numbers in Fig. 2A were also incorrect. The correct sample numbers are as follows: 3 samples of breast tissue, 12 samples of breast cancer tissue, 3 samples of normal cervical tissue, 9 samples of CESC, 7 samples of LIHC, 3 samples of normal lung tissue and 6 samples of LUSC. These errors were due to negligence during the storage of HPA database images. The revised version of Fig. 2, showing the correct data for the 'Tumor/LUSC' experiment in Fig. 2A (where the error occurred), is shown on the next page. Note that this error did not significantly affect either the results or the conclusions reported in this paper, and all the authors agree to the corrigendum. The authors do stress the importance of a larger sample size to ascertain statistically significant differences in CENPM protein expression, predominantly localized in the cell nucleus. Furthermore, the authors thank the Editor of Molecular Medicine Reports for allowing them the opportunity to publish this corrigendum, and apologize to the readership for any inconvenience caused. [Molecular Medicine Reports 22: 3922‑3934, 2020; DOI: 10.3892/mmr.2020.11461].
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Affiliation(s)
- Ying Liu
- Key Laboratory of Endemic and Ethnic Diseases of The Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Wenfeng Yu
- Key Laboratory of Endemic and Ethnic Diseases of The Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Peng Ren
- Department of Urology, The Second Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 556000, P.R. China
| | - Ting Zhang
- Key Laboratory of Endemic and Ethnic Diseases of The Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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Paternot S, Raspé E, Meiller C, Tarabichi M, Assié J, Libert F, Remmelink M, Bisteau X, Pauwels P, Blum Y, Le Stang N, Tabone‐Eglinger S, Galateau‐Sallé F, Blanquart C, Van Meerbeeck JP, Berghmans T, Jean D, Roger PP. Preclinical evaluation of CDK4 phosphorylation predicts high sensitivity of pleural mesotheliomas to CDK4/6 inhibition. Mol Oncol 2024; 18:866-894. [PMID: 36453028 PMCID: PMC10994244 DOI: 10.1002/1878-0261.13351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 11/04/2022] [Accepted: 11/30/2022] [Indexed: 12/05/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive cancer with limited therapeutic options. We evaluated the impact of CDK4/6 inhibition by palbociclib in 28 MPM cell lines including 19 patient-derived ones, using various approaches including RNA-sequencing. Palbociclib strongly and durably inhibited the proliferation of 23 cell lines, indicating a unique sensitivity of MPM to CDK4/6 inhibition. When observed, insensitivity to palbociclib was mostly explained by the lack of active T172-phosphorylated CDK4. This was associated with high p16INK4A (CDKN2A) levels that accompany RB1 defects or inactivation, or (unexpectedly) CCNE1 overexpression in the presence of wild-type RB1. Prolonged palbociclib treatment irreversibly inhibited proliferation despite re-induction of cell cycle genes upon drug washout. A senescence-associated secretory phenotype including various potentially immunogenic components was irreversibly induced. Phosphorylated CDK4 was detected in 80% of 47 MPMs indicating their sensitivity to CDK4/6 inhibitors. Its absence in some highly proliferative MPMs was linked to very high p16 (CDKN2A) expression, which was also observed in public datasets in tumours from short-survival patients. Our study supports the evaluation of CDK4/6 inhibitors for MPM treatment, in monotherapy or combination therapy.
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Affiliation(s)
- Sabine Paternot
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
| | - Eric Raspé
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
| | - Clément Meiller
- Université de ParisCentre de Recherche des Cordeliers, Inserm, Sorbonne Université, Functional Genomics of Solid TumorsFrance
| | - Maxime Tarabichi
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
| | - Jean‐Baptiste Assié
- Université de ParisCentre de Recherche des Cordeliers, Inserm, Sorbonne Université, Functional Genomics of Solid TumorsFrance
- CEpiA (Clinical Epidemiology and Ageing), EA 7376‐IMRBUniversity Paris‐Est CréteilFrance
- GRC OncoThoParisEst, Service de Pneumologie, CHI Créteil, UPECCréteilFrance
| | - Frederick Libert
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
- BRIGHTCore, ULBBrusselsBelgium
| | - Myriam Remmelink
- Department of Pathology, Erasme HospitalUniversité Libre de BruxellesBelgium
| | - Xavier Bisteau
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
| | - Patrick Pauwels
- Center for Oncological Research (CORE)Integrated Personalized and Precision Oncology Network (IPPON)WilrijkBelgium
- Department of PathologyAntwerp University HospitalEdegemBelgium
| | - Yuna Blum
- Programme Cartes d'Identité des Tumeurs (CIT), Ligue Nationale Contre Le CancerParisFrance
- Present address:
IGDR UMR 6290, CNRS, Université de Rennes 1France
| | - Nolwenn Le Stang
- MESOBANK, Department of Biopathology, Centre Léon BérardLyonFrance
| | | | - Françoise Galateau‐Sallé
- MESOBANK, Department of Biopathology, Centre Léon BérardLyonFrance
- Cancer Research Center INSERM U1052‐CNRS 5286RLyonFrance
| | | | | | - Thierry Berghmans
- Clinic of Thoracic OncologyInstitut Jules Bordet, Université Libre de BruxellesBrusselsBelgium
| | - Didier Jean
- Université de ParisCentre de Recherche des Cordeliers, Inserm, Sorbonne Université, Functional Genomics of Solid TumorsFrance
| | - Pierre P. Roger
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
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Noh MH, Kim HY, Kim DOH, Moon SH, Hur DY. Role of Peroxiredoxin 1 Induced by Epstein-Barr Virus Infection in Nasopharyngeal Carcinoma. Anticancer Res 2024; 44:1425-1440. [PMID: 38537989 DOI: 10.21873/anticanres.16939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND/AIM Nasopharyngeal carcinoma (NPC), a common cancer in Southern China, is associated with Epstein-Barr Virus (EBV) infection. Although many therapies for NPC have been established, the definite role of EBV in NPC remains unclear. Therefore, this work focuses on LMP2A, a latent EBV gene, and investigates whether LMP2A is related to peroxiredoxin 1 (PRDX1) in EBV-positive NPC. MATERIALS AND METHODS The mRNA and protein expression levels of LMP2A, PRDX1, and beta-catenin were compared in patient samples. To identify molecular mechanisms, EBV-negative NP69 and EBV-positive C666-1 NPC cell lines were used. After making an agar cell block for cell slides, the intensity of LMP2A expression was observed visually. To measure the level of reactive oxygen species, both fluorescence microscope and flow cytometry were used. To investigate the intracellular signaling molecular mechanisms with and without the LMP2A gene, reverse transcription polymerase chain reaction and western blotting were used. RESULTS Both patient samples and cells of nasopharyngeal carcinoma infected with EBV had increased expression of LMP2A compared with controls, and high ROS levels were identified. Cell viability assay showed that LMP2A promoted cell growth by regulating gene expression. Furthermore, LMP2A induced the expression of PRDX1 and beta-catenin. LMP2A also increased the expression of both cyclin B1 and cyclin D1. CONCLUSION In NPC cells, PRDX1 and beta-catenin were regulated through LMP2A expression, which reduced cell growth through cell cycle-related gene expression. This study suggests that LMP2A could be a target molecule for inhibiting cancer progression in NPC cells infected with EBV.
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Affiliation(s)
- Min Hye Noh
- Department of Anatomy and Tumor Immunology, Inje University College of Medicine, Busan, Republic of Korea
| | - Hye Young Kim
- Department of Anatomy and Tumor Immunology, Inje University College of Medicine, Busan, Republic of Korea
| | - DO Hun Kim
- Department of Otolaryngology-Head and Neck Surgery, Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - Sung Ho Moon
- Department of Anesthesiology and Pain Medicine, Inje University Haeundae Paik Hospital, Busan, Republic of Korea
| | - Dae Young Hur
- Department of Anatomy and Tumor Immunology, Inje University College of Medicine, Busan, Republic of Korea;
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31
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Quesenberry P, Dooner M, Pereira M, Oulhen N, Wen S. The Essence of Quiescence. Stem Cells Dev 2024; 33:149-152. [PMID: 38445379 DOI: 10.1089/scd.2024.0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024] Open
Abstract
Historically hematopoietic stem cells are believed to be predominantly dormant but could be induced into active cell cycle under specific conditions. This review, coupled with years of research from our laboratory, challenges this belief by demonstrating a significant portion of hematopoietic stem cells are actively cycling rather than quiescent. This addresses a major heuristic error in the understanding of hematopoietic stem cells that has shaped this field for decades. By evaluating the cycle status of engraftable hematopoietic stem cells in whole unseparated bone marrow, we demonstrated that a significant portion of these cells are actively cycling, and further confirmed by tritiated thymidine suicide and bromodeoxyuridine labeling assays. Moreover, by analyzing both whole unseparated bone marrow and purified lineage-negative hematopoietic stem cells in murine models, our findings indicate that lineage-positive cells, usually discarded during purification, actually contain actively cycling stem cells. Taken together, our findings highlight that hematopoietic stem cells are characterized as actively cycling and expressing differentiation epitopes. This corrects a basic mistake in stem cell biology. Furthermore, these findings provide valuable insights for a better understanding of the actively cycling hematopoietic stem cells in the field of stem cell biology.
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Affiliation(s)
- Peter Quesenberry
- Department of Medicine, Division of Hematology/Oncology, Brown University, Rhode Island Hospital, Providence, Rhode Island, USA
| | - Mark Dooner
- Department of Medicine, Division of Hematology/Oncology, Brown University, Rhode Island Hospital, Providence, Rhode Island, USA
| | - Mandy Pereira
- Department of Medicine, Division of Hematology/Oncology, Brown University, Rhode Island Hospital, Providence, Rhode Island, USA
| | - Nathalie Oulhen
- Department of Molecular Biology, Cell Biology, and Biochemistry, Brown University, Providence, Rhode Island, USA
| | - Sicheng Wen
- Department of Medicine, Division of Hematology/Oncology, Brown University, Rhode Island Hospital, Providence, Rhode Island, USA
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32
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Mahato R, Behera DK, Patra B, Das S, Lakra K, Pradhan SN, Abbas SJ, Ali SI. Plant-based natural products in cancer therapeutics. J Drug Target 2024; 32:365-380. [PMID: 38315449 DOI: 10.1080/1061186x.2024.2315474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 01/21/2024] [Indexed: 02/07/2024]
Abstract
Various cells in our body regularly divide to replace old cells and dead cells. For a living cell to be growing, cell division and differentiation is highly essential. Cancer is characterised by uncontrollable cell division and invasion of other tissues due to dysregulation in the cell cycle. An accumulation of genetic changes or mutations develops through different physical (UV and other radiations), chemical (chewing and smoking of tobacco, chemical pollutants/mutagens), biological (viruses) and hereditary factors that can lead to cancer. Now, cancer is considered as a major death-causing factor worldwide. Due to advancements in technology, treatment like chemotherapy, radiation therapy, bone marrow transplant, immunotherapy, hormone therapy and many more in the rows. Although, it also has some side effects like fatigue, hair fall, anaemia, nausea and vomiting, constipation. Modern improved drug therapies come with severe side effects. There is need for safer, more effective, low-cost treatment with lesser side-effects. Biologically active natural products derived from plants are the emerging strategy to deal with cancer proliferation. Moreover, they possess anti-carcinogenic, anti-proliferative and anti-mutagenic properties with reduced side effects. They also detoxify and remove reactive substances formed by carcinogenic agents. In this article, we discuss different plant-based products and their mechanism of action against cancer.
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Affiliation(s)
- Rohini Mahato
- School of Life Sciences, Sambalpur University, Jyoti Vihar, Burla, Odisha, India
| | - Dillip Kumar Behera
- School of Life Sciences, Sambalpur University, Jyoti Vihar, Burla, Odisha, India
| | - Biswajit Patra
- School of Life Sciences, Sambalpur University, Jyoti Vihar, Burla, Odisha, India
- P.G. Department of Botany, Fakir Mohan University, Balasore, Odisha, India
| | - Shradhanjali Das
- School of Life Sciences, Sambalpur University, Jyoti Vihar, Burla, Odisha, India
| | - Kulwant Lakra
- Department of Community Medicine, Veer Surendra Sai Institute of Medical Sciences and Research, Sambalpur, Odisha, India
| | | | - Sk Jahir Abbas
- Institute of Molecular Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sk Imran Ali
- Department of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal, India
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33
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Zhou Q, Wang R, Su Y, Wang B, Zhang Y, Qin X. The molecular circadian rhythms regulating the cell cycle. J Cell Biochem 2024; 125:e30539. [PMID: 38372014 DOI: 10.1002/jcb.30539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/25/2024] [Accepted: 02/02/2024] [Indexed: 02/20/2024]
Abstract
The circadian clock controls the expression of a large proportion of protein-coding genes in mammals and can modulate a wide range of physiological processes. Recent studies have demonstrated that disruption or dysregulation of the circadian clock is involved in the development and progression of several diseases, including cancer. The cell cycle is considered to be the fundamental process related to cancer. Accumulating evidence suggests that the circadian clock can control the expression of a large number of genes related to the cell cycle. This article reviews the mechanism of cell cycle-related genes whose chromatin regulatory elements are rhythmically occupied by core circadian clock transcription factors, while their RNAs are rhythmically expressed. This article further reviews the identified oscillatory cell cycle-related genes in higher organisms such as baboons and humans. The potential functions of these identified genes in regulating cell cycle progression are also discussed. Understanding how the molecular clock controls the expression of cell cycle genes will be beneficial for combating and treating cancer.
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Affiliation(s)
- Qin Zhou
- Institute of Health Sciences and Technology, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui Province, China
| | - Ruohan Wang
- Institute of Health Sciences and Technology, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui Province, China
| | - Yunxia Su
- Institute of Health Sciences and Technology, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui Province, China
| | - Bowen Wang
- Institute of Health Sciences and Technology, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui Province, China
| | - Yunfei Zhang
- Modern Experiment Technology Center, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui Province, China
| | - Ximing Qin
- Institute of Health Sciences and Technology, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui Province, China
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Lei S, Cao W, Zeng Z, Wang L, Lan J, Chen T. Cynaroside Induces G1 Cell Cycle Arrest by Downregulating Cell Division Cycle 25A in Colorectal Cancer. Molecules 2024; 29:1508. [PMID: 38611789 PMCID: PMC11013184 DOI: 10.3390/molecules29071508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/09/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
Natural chemicals derived from herbal plants have recently been recognized as potentially useful treatment alternatives owing to their ability to target a wide range of important biological molecules. Cynaroside is one of these natural compounds with promising anticancer activity for numerous tumor types. Nevertheless, the anticancer effects and molecular mechanisms of action of cynaroside on colorectal cancer (CRC) remain unclear. In this study, cynaroside was found to markedly inhibit CRC cell proliferation and colony formation in vitro. Cynaroside also inhibited cell proliferation in vivo and decreased the expression of KI67, a cell nuclear antigen. RNA sequencing revealed 144 differentially expressed genes (DEGs) in HCT116 cells and 493 DEGs in RKO cells that were enriched in the cell cycle signaling pathway. Cell division cycle 25A (CDC25A), a DEG widely enriched in the cell cycle signaling pathway, is considered a key target of cynaroside in CRC cells. Cynaroside also inhibited DNA replication and arrested cells in the G1/S phase in vitro. The expression levels of CDC25A and related G1-phase proteins were significantly elevated after CDC25A overexpression in CRC cells, which partially reversed the inhibitory effect of cynaroside on CRC cell proliferation and G1/S-phase arrest. In summary, cynaroside may be used to treat CRC as it inhibits CDC25A expression.
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Affiliation(s)
- Shan Lei
- Department of Physiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550009, China; (S.L.); (Z.Z.); (L.W.); (J.L.)
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Guizhou Medical University, Guiyang 550009, China
| | - Wenpeng Cao
- Department of Anatomy, School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550009, China;
| | - Zhirui Zeng
- Department of Physiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550009, China; (S.L.); (Z.Z.); (L.W.); (J.L.)
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Guizhou Medical University, Guiyang 550009, China
| | - Lu Wang
- Department of Physiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550009, China; (S.L.); (Z.Z.); (L.W.); (J.L.)
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Guizhou Medical University, Guiyang 550009, China
| | - Jinzhi Lan
- Department of Physiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550009, China; (S.L.); (Z.Z.); (L.W.); (J.L.)
| | - Tengxiang Chen
- Department of Physiology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550009, China; (S.L.); (Z.Z.); (L.W.); (J.L.)
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Guizhou Medical University, Guiyang 550009, China
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35
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Garg S, Miousse IR. Rescue of Methionine Dependence by Cobalamin in a Human Colorectal Cancer Cell Line. Nutrients 2024; 16:997. [PMID: 38613029 PMCID: PMC11013648 DOI: 10.3390/nu16070997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/21/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Methionine dependence is a characteristic of most cancer cells where they are unable to proliferate when the essential amino acid methionine is replaced with its precursor homocysteine in the growing media. Normal cells, on the other hand, thrive under these conditions and are referred to as methionine-independent. The reaction that adds a methyl group from 5-methyltetrahydrofolate to homocysteine to regenerate methionine is catalyzed by the enzyme methionine synthase with the cofactor cobalamin (vitamin B12). However, decades of research have shown that methionine dependence in cancer is not due to a defect in the activity of methionine synthase. Cobalamin metabolism has been tied to the dependent phenotype in rare cell lines. We have identified a human colorectal cancer cell line in which the cells regain the ability to proliferation in methionine-free, L-homocystine-supplemented media when cyanocobalamin is supplemented at a level of 1 µg/mL. In human SW48 cells, methionine replacement with L-homocystine does not induce any measurable increase in apoptosis or reactive oxygen species production in this cell line. Rather, proliferation is halted, then restored in the presence of cyanocobalamin. Our data show that supplementation with cyanocobalamin prevents the activation of the integrated stress response (ISR) in methionine-deprived media in this cell line. The ISR-associated cell cycle arrest, characteristic of methionine-dependence in cancer, is also prevented, leading to the continuation of proliferation in methionine-deprived SW48 cells with cobalamin. Our results highlight differences between cancer cell lines in the response to cobalamin supplementation in the context of methionine dependence.
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Affiliation(s)
| | - Isabelle R. Miousse
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
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Yin X, He Z, Chen K, Ouyang K, Yang C, Li J, Tang H, Cai M. Unveiling the impact of CDK8 on tumor progression: mechanisms and therapeutic strategies. Front Pharmacol 2024; 15:1386929. [PMID: 38606172 PMCID: PMC11006979 DOI: 10.3389/fphar.2024.1386929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 03/14/2024] [Indexed: 04/13/2024] Open
Abstract
CDK8 is an important member of the cyclin-dependent kinase family associated with transcription and acts as a key "molecular switch" in the Mediator complex. CDK8 regulates gene expression by phosphorylating transcription factors and can control the transcription process through Mediator complex. Previous studies confirmed that CDK8 is an important oncogenic factor, making it a potential tumor biomarker and a promising target for tumor therapy. However, CDK8 has also been confirmed to be a tumor suppressor, indicating that it not only promotes the development of tumors but may also be involved in tumor suppression. Therefore, the dual role of CDK8 in the process of tumor development is worth further exploration and summary. This comprehensive review delves into the intricate involvement of CDK8 in transcription-related processes, as well as its role in signaling pathways related to tumorigenesis, with a focus on its critical part in driving cancer progression.
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Affiliation(s)
- Xiaomin Yin
- Department of Radiotherapy, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Zhilong He
- Department of Radiotherapy, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Kun Chen
- Department of Radiotherapy, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Kai Ouyang
- Department of Radiotherapy, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Changxuan Yang
- Department of Radiotherapy, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Jianjun Li
- Department of Urological Surgical, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Hailin Tang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Manbo Cai
- Department of Radiotherapy, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
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Dreyer J, Ricci G, van den Berg J, Bhardwaj V, Funk J, Armstrong C, van Batenburg V, Sine C, VanInsberghe MA, Marsman R, Mandemaker IK, di Sanzo S, Costantini J, Manzo SG, Biran A, Burny C, Völker-Albert M, Groth A, Spencer SL, van Oudenaarden A, Mattiroli F. Acute multi-level response to defective de novo chromatin assembly in S-phase. bioRxiv 2024:2024.03.22.586291. [PMID: 38585916 PMCID: PMC10996472 DOI: 10.1101/2024.03.22.586291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Long-term perturbation of de novo chromatin assembly during DNA replication has profound effects on epigenome maintenance and cell fate. The early mechanistic origin of these defects is unknown. Here, we combine acute degradation of Chromatin Assembly Factor 1 (CAF-1), a key player in de novo chromatin assembly, with single-cell genomics, quantitative proteomics, and live-microscopy to uncover these initiating mechanisms in human cells. CAF-1 loss immediately slows down DNA replication speed and renders nascent DNA hyperaccessible. A rapid cellular response, distinct from canonical DNA damage signaling, is triggered and lowers histone mRNAs. As a result, histone variants usage and their modifications are altered, limiting transcriptional fidelity and delaying chromatin maturation within a single S-phase. This multi-level response induces a cell-cycle arrest after mitosis. Our work reveals the immediate consequences of defective de novo chromatin assembly during DNA replication, explaining how at later times the epigenome and cell fate can be altered.
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Affiliation(s)
- Jan Dreyer
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Giulia Ricci
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Jeroen van den Berg
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
- Oncode Institute, The Netherlands
| | - Vivek Bhardwaj
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
- Oncode Institute, The Netherlands
| | - Janina Funk
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Claire Armstrong
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO 80303, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Vincent van Batenburg
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
- Oncode Institute, The Netherlands
| | - Chance Sine
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO 80303, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Michael A. VanInsberghe
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
- Oncode Institute, The Netherlands
| | - Richard Marsman
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Imke K. Mandemaker
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Simone di Sanzo
- MOLEQLAR Analytics GmbH, Rosenheimer Street 141 h, 81671 Munich, Germany
| | - Juliette Costantini
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Stefano G. Manzo
- Oncode Institute, The Netherlands
- Division of Gene Regulation, Netherlands Cancer Institute, The Netherlands
- Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133 Milan, Italy
| | - Alva Biran
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen 2200, Denmark
- Biotech Research & Innovation Centre, University of Copenhagen, Copenhagen 2200, Denmark
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen 2200, Denmark
| | - Claire Burny
- MOLEQLAR Analytics GmbH, Rosenheimer Street 141 h, 81671 Munich, Germany
| | | | - Anja Groth
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen 2200, Denmark
- Biotech Research & Innovation Centre, University of Copenhagen, Copenhagen 2200, Denmark
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen 2200, Denmark
| | - Sabrina L. Spencer
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO 80303, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Alexander van Oudenaarden
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
- Oncode Institute, The Netherlands
| | - Francesca Mattiroli
- Hubrecht Institute-KNAW & University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
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Deng S, Wang WX. Dynamic Regulation of Intracellular Labile Cu(I)/Cu(II) Cycle in Microalgae Chlamydomonas reinhardtii: Disrupting the Balance by Cu Stress. Environ Sci Technol 2024; 58:5255-5266. [PMID: 38471003 DOI: 10.1021/acs.est.3c10257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
The labile metal pool involved in intracellular trafficking and homeostasis is the portion susceptible to environmental stress. Herein, we visualized the different intracellular distributions of labile Cu(I) and Cu(II) pools in the alga Chlamydomonas reinhardtii. We first demonstrated that labile Cu(I) predominantly accumulated in the granules within the cytoplasmic matrix, whereas the labile Cu(II) pool primarily localized in the pyrenoid and chloroplast. The cell cycle played an integral role in balancing the labile Cu(I)/Cu(II) pools. Specifically, the labile Cu(II) pool primarily accumulated during the SM phase following cell division, while the labile Cu(I) pool dynamically changed during the G phase as cell size increased. Notably, the labile Cu(II) pool in algae at the SM stage exhibited heightened sensitivity to environmental Cu stress. Exogenous Cu stress disrupted the intracellular labile Cu(I)/Cu(II) cycle and balance, causing a shift toward the labile Cu(II) pool. Our proteomic analysis further identified a putative cupric reductase, potentially capable of reducing Cu(II) to Cu(I), and four putative multicopper oxidases, potentially capable of oxidizing Cu(I) to Cu(II), which may be involved in the conversion between the labile Cu(I) pool and labile Cu(II) pool. Our study elucidated a dynamic cycle of the intracellular labile Cu(I)/Cu(II) pools, which were accessible and responsive to environmental changes.
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Affiliation(s)
- Shaoxi Deng
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
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Perecko T, Pereckova J, Hoferova Z, Falk M. Cell-type specific anti-cancerous effects of nitro-oleic acid and its combination with gamma irradiation. Biol Chem 2024; 405:177-187. [PMID: 37712609 DOI: 10.1515/hsz-2023-0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 08/14/2023] [Indexed: 09/16/2023]
Abstract
Nitro-fatty acids (NFAs) are endogenous lipid mediators capable of post-translational modifications of selected regulatory proteins. Here, we investigated the anti-cancerous effects of nitro-oleic acid (NO2OA) and its combination with gamma irradiation on different cancer cell lines. The effects of NO2OA on cell death, cell cycle distribution, or expression of p21 and cyclin D1 proteins were analyzed in cancer (A-549, HT-29 and FaDu) or normal cell lines (HGF, HFF-1). Dose enhancement ratio at 50 % survival fraction (DERIC50) was calculated for samples pre-treated with NO2OA followed by gamma irradiation. NO2OA suppressed viability and induced apoptotic cell death. These effects were cell line specific but not in general selective for cancer cells. HT-29 cell line exerted higher sensitivity toward NO2OA treatment among cancer cell lines tested: induction of cell cycle arrest in the G2/M phase was associated with an increase in p21 and a decrease in cyclin D1 expression. Pre-treatment of HT-29 cells with NO2OA prior irradiation showed a significantly increased DERIC50, demonstrating radiosensitizing effects. In conclusion, NO2OA exhibited potential for combined chemoradiotherapy. Our results encourage the development of new NFAs with improved features for cancer chemoradiation.
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Affiliation(s)
- Tomas Perecko
- Institute of Biophysics of the Czech Academy of Sciences, Kralovopolska 135, CZ-612 00 Brno, Czech Republic
| | - Jana Pereckova
- Institute of Biophysics of the Czech Academy of Sciences, Kralovopolska 135, CZ-612 00 Brno, Czech Republic
| | - Zuzana Hoferova
- Institute of Biophysics of the Czech Academy of Sciences, Kralovopolska 135, CZ-612 00 Brno, Czech Republic
| | - Martin Falk
- Institute of Biophysics of the Czech Academy of Sciences, Kralovopolska 135, CZ-612 00 Brno, Czech Republic
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Cheng DX, Wang XH, Wang CL, Li XY, Ye ZL, Li WF. Cambium Reactivation Is Closely Related to the Cell-Cycle Gene Configuration in Larix kaempferi. Int J Mol Sci 2024; 25:3578. [PMID: 38612390 PMCID: PMC11011626 DOI: 10.3390/ijms25073578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
Dormancy release and reactivation in temperate trees are mainly controlled by temperature and are affected by age, but the underlying molecular mechanisms are still unclear. In this study, we explored the effects of low temperatures in winter and warm temperatures in spring on dormancy release and reactivation in Larix kaempferi. Further, we established the relationships between cell-cycle genes and cambium cell division. The results showed that chilling accelerated L. kaempferi bud break overall, and the longer the duration of chilling is, the shorter the bud break time is. After dormancy release, warm temperatures induced cell-cycle gene expression; when the configuration value of the cell-cycle genes reached 4.97, the cambium cells divided and L. kaempferi reactivated. This study helps to predict the impact of climate change on wood production and provides technical support for seedling cultivation in greenhouses.
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Affiliation(s)
| | | | | | | | | | - Wan-Feng Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China; (D.-X.C.); (X.-H.W.); (C.-L.W.); (X.-Y.L.); (Z.-L.Y.)
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Oda T, Tsutsumi K, Obata T, Ueta E, Kikuchi T, Ako S, Fujii Y, Yamazaki T, Uchida D, Matsumoto K, Horiguchi S, Kato H, Okada H, Chijimatsu R, Otsuka M. MicroRNA-34a-5p: A pivotal therapeutic target in gallbladder cancer. Mol Ther Oncol 2024; 32:200765. [PMID: 38596294 PMCID: PMC10963938 DOI: 10.1016/j.omton.2024.200765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/04/2023] [Accepted: 01/18/2024] [Indexed: 04/11/2024]
Abstract
Gallbladder cancer incidence has been increasing globally, and it remains challenging to expect long prognosis with the current systemic chemotherapy. We identified a novel nucleic acid-mediated therapeutic target against gallbladder cancer by using innovative organoid-based gallbladder cancer models generated from KrasLSL-G12D/+; Trp53f/f mice. Using comprehensive microRNA expression analyses and a bioinformatics approach, we identified significant microRNA-34a-5p downregulation in both murine gallbladder cancer organoids and resected human gallbladder cancer specimens. In three different human gallbladder cancer cell lines, forced microRNA-34a-5p expression inhibited cell proliferation and induced cell-cycle arrest at the G1 phase by suppressing direct target (CDK6) expression. Furthermore, comprehensive RNA sequencing revealed the significant enrichment of gene sets related to the cell-cycle regulators after microRNA-34a-5p expression in gallbladder cancer cells. In a murine xenograft model, locally injected microRNA-34a-5p mimics significantly inhibited gallbladder cancer progression and downregulated CDK6 expression. These results provide a rationale for promising therapeutics against gallbladder cancer by microRNA-34a-5p injection, as well as a strategy to explore therapeutic targets against cancers using organoid-based models, especially for those lacking useful genetically engineered murine models, such as gallbladder cancer.
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Affiliation(s)
- Takashi Oda
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
| | - Koichiro Tsutsumi
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Taisuke Obata
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
| | - Eijiro Ueta
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Tatsuya Kikuchi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
| | - Soichiro Ako
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Yuki Fujii
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Tatsuhiro Yamazaki
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Daisuke Uchida
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Kazuyuki Matsumoto
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Shigeru Horiguchi
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Hironari Kato
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Ryota Chijimatsu
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Motoyuki Otsuka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
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Ascanelli C, Dahir R, Wilson CH. Manipulating Myc for reparative regeneration. Front Cell Dev Biol 2024; 12:1357589. [PMID: 38577503 PMCID: PMC10991803 DOI: 10.3389/fcell.2024.1357589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/15/2024] [Indexed: 04/06/2024] Open
Abstract
The Myc family of proto-oncogenes is a key node for the signal transduction of external pro-proliferative signals to the cellular processes required for development, tissue homoeostasis maintenance, and regeneration across evolution. The tight regulation of Myc synthesis and activity is essential for restricting its oncogenic potential. In this review, we highlight the central role that Myc plays in regeneration across the animal kingdom (from Cnidaria to echinoderms to Chordata) and how Myc could be employed to unlock the regenerative potential of non-regenerative tissues in humans for therapeutic purposes. Mastering the fine balance of harnessing the ability of Myc to promote transcription without triggering oncogenesis may open the door to many exciting opportunities for therapeutic development across a wide array of diseases.
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Affiliation(s)
| | | | - Catherine H. Wilson
- Department of Pharmacology, University of Cambridge, Cambridge, United Kingdom
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Hashimoto M, Masuda T, Nakano Y, Tobo T, Saito H, Koike K, Takahashi J, Abe T, Ando Y, Ozato Y, Hosoda K, Higuchi S, Hisamatsu Y, Toshima T, Yonemura Y, Hata T, Uemura M, Eguchi H, Doki Y, Mori M, Mimori K. Tumor suppressive role of the epigenetic master regulator BRD3 in colorectal cancer. Cancer Sci 2024. [PMID: 38494600 DOI: 10.1111/cas.16129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 02/13/2024] [Accepted: 02/16/2024] [Indexed: 03/19/2024] Open
Abstract
Bromodomain and extraterminal domain (BET) family proteins are epigenetic master regulators of gene expression via recognition of acetylated histones and recruitment of transcription factors and co-activators to chromatin. Hence, BET family proteins have emerged as promising therapeutic targets in cancer. In this study, we examined the functional role of bromodomain containing 3 (BRD3), a BET family protein, in colorectal cancer (CRC). In vitro and vivo analyses using BRD3-knockdown or BRD3-overexpressing CRC cells showed that BRD3 suppressed tumor growth and cell cycle G1/S transition and induced p21 expression. Clinical analysis of CRC datasets from our hospital or The Cancer Genome Atlas revealed that BET family genes, including BRD3, were overexpressed in tumor tissues. In immunohistochemical analyses, BRD3 was observed mainly in the nucleus of CRC cells. According to single-cell RNA sequencing in untreated CRC tissues, BRD3 was highly expressed in malignant epithelial cells, and cell cycle checkpoint-related pathways were enriched in the epithelial cells with high BRD3 expression. Spatial transcriptomic and single-cell RNA sequencing analyses of CRC tissues showed that BRD3 expression was positively associated with high p21 expression. Furthermore, overexpression of BRD3 combined with knockdown of, a driver gene in the BRD family, showed strong inhibition of CRC cells in vitro. In conclusion, we demonstrated a novel tumor suppressive role of BRD3 that inhibits tumor growth by cell cycle inhibition in part via induction of p21 expression. BRD3 activation might be a novel therapeutic approach for CRC.
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Affiliation(s)
- Masahiro Hashimoto
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takaaki Masuda
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Yusuke Nakano
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Taro Tobo
- Department of Pathology, Kyushu University Beppu Hospital, Beppu, Japan
| | - Hideyuki Saito
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Kensuke Koike
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Junichi Takahashi
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Tadashi Abe
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Yuki Ando
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Yuki Ozato
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Kiyotaka Hosoda
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Satoshi Higuchi
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yuichi Hisamatsu
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Takeo Toshima
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Yusuke Yonemura
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Tsuyoshi Hata
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Mamoru Uemura
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masaki Mori
- Tokai University School of Medicine, Isehara, Japan
| | - Koshi Mimori
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
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44
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Xu W, Xiang X, Lin L, Gong ZH, Xiao WJ. l-Theanine delays d-galactose-induced senescence by regulating the cell cycle and inhibiting apoptosis in rat intestinal cells. J Sci Food Agric 2024; 104:2073-2084. [PMID: 37919877 DOI: 10.1002/jsfa.13096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/22/2023] [Accepted: 11/03/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND Intestinal senescence is associated with several aging-related diseases. l-Theanine (LTA) has demonstrated strong potential as an antioxidant and antisenescence agent. This study investigated the regulatory effect of LTA on cellular senescence using an in vitro model of d-galactose (D-Gal)-induced senescence in the rat epithelial cell line, intestinal epithelioid cell-6 (IEC-6). RESULTS Treatment of IEC-6 cells with 40 mg/mL D-Gal for 48 h resulted in the successful development of the senescent cell model. Compared with D-Gal alone, both LTA preventive and delayed intervention increased cell viability and the ratio of JC-1 monomers to aggregates, increased the antioxidant capacity, and decreased the advanced glycation end product (AGE) levels and the overall number of senescent cells. Preventive and delayed intervention with 1000 μM LTA alleviated the D-Gal-induced cell cycle arrest by regulating p38, p53, CDK4, and CDK6 expression at the mRNA and protein levels, and further induced CycD1 proteins. Moreover, LTA preventive intervention reduced apoptosis to a greater degree than delayed intervention by upregulating the expression of the receptors of AGEs, Bax, Bcl-2, and NF-κB at the mRNA and protein levels. CONCLUSION Our findings indicate that LTA intervention could attenuate senescence in IEC-6 cells by regulating the cell cycle and inhibiting apoptosis. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Wei Xu
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
| | - Xi Xiang
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
| | - Ling Lin
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
| | - Zhi-Hua Gong
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
| | - Wen-Jun Xiao
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
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蔡 东, 杨 子, 钟 超, 张 靖, 洪 嵩. [miR-515-5p targeting Toll-like receptor 4 regulates myeloid differentiation primary response gene 88/nuclear factor-kappa B pathway to inhibit apoptosis and inflammatory response of osteoarthritis chondrocytes]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2024; 38:315-323. [PMID: 38500425 PMCID: PMC10982029 DOI: 10.7507/1002-1892.202312091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/01/2024] [Indexed: 03/20/2024]
Abstract
Objective To explore the molecular mechanism of miR-515-5p in inhibiting chondrocyte apoptosis and alleviating inflammatory response in osteoarthritis (OA). Methods Human cartilage cell line C28/I2 was cultured in vitro and treated with 10 ng/mL interleukin 1β (IL-1β) for 24 hours to construct an in vitro OA model. C28/I2 cells were transfected with miR mimics, mimics negative control (NC), over expression (oe)-NC, and oe-Toll-like receptor 4 (TLR4), respectively, and then treated with 10 ng/mL IL-1β for 24 hours to establish OA model. Cell proliferation capacity was detected by cell counting kit 8 and 5-Ethynyl-2'-deoxyuridine, cell apoptosis and cell cycle were detected by flow cytometry, and B-cell lymphoma 2 protion (Bcl-2), Bcl-2-associated X protein (Bax), cleaved-Caspase-3, TLR4, myeloid differentiation primary response gene 88 (MyD88), p65 and phosphorylated p65 (p-p65) protein expression levels were detected by Western blot. Real-time fluorescence quantitative PCR was used to detect mRNA expression levels of miR-515-5p and TLR4, and ELISA was used to detect pro-inflammatory factor prostaglandin E2 (PGE2), tumor necrosis factor α (TNF -α), and IL-6 levels in cell supernatant. The potential binding sites between miR-515-5p and TLR4 were predicted by BiBiServ2 database, and the targeting relationship between miR-515-5p and TLR4 was verified by dual luciferase reporting assay. Results After the treatment of C28/I2 cells with IL-1β, the expressions of miR-515-5p and Bcl-2 protein and the proliferation ability of C28/I2 cells significantly reduced. The expression levels of Bax and cleaved-Caspase-3 protein, the levels of pro-inflammatory factors (PGE2, TNF-α, IL-6) in the supernatant of C28/I2 cells, and the apoptosis of C28/I2 cells significantly increased. In addition, the proportion of the cells at S phase and G 2 phase decreased significantly, and the proportion of cells at G 1 phase increased significantly, suggesting that the cell cycle was blocked after IL-1β treatment. After transfection with miR mimics, the expression level of miR-515-5p in the cells significantly up-regulated, partially reversing the apoptosis of OA chondrocytes induced by IL-1β, and alleviating the cycle arrest and inflammatory response of OA chondrocytes. After treating C28/I2 cells with IL-1β, the mRNA and protein levels of TLR4 significantly increased. Overexpression of miR-515-5p targeted inhibition of TLR4 expression and blocked activation of MyD88/nuclear factor κB (NF-κB) pathway. Overexpression of TLR4 could partially reverse the effect of miR mimics on IL-1β-induced apoptosis and inflammation of OA chondrocytes. Conclusion miR-515-5p negatively regulates the expression of TLR4, inhibits the activation of MyD88/NF-κB pathway and apoptosis of OA chondrocytes, and effectively alleviates the inflammatory response of the cells.
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Affiliation(s)
- 东峰 蔡
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
| | - 子肖 杨
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
| | - 超 钟
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
| | - 靖 张
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
| | - 嵩 洪
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
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Schindler-Johnson M, Petridou NI. Collective effects of cell cleavage dynamics. Front Cell Dev Biol 2024; 12:1358971. [PMID: 38559810 PMCID: PMC10978805 DOI: 10.3389/fcell.2024.1358971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
A conserved process of early embryonic development in metazoans is the reductive cell divisions following oocyte fertilization, termed cell cleavages. Cell cleavage cycles usually start synchronously, lengthen differentially between the embryonic cells becoming asynchronous, and cease before major morphogenetic events, such as germ layer formation and gastrulation. Despite exhibiting species-specific characteristics, the regulation of cell cleavage dynamics comes down to common controllers acting mostly at the single cell/nucleus level, such as nucleus-to-cytoplasmic ratio and zygotic genome activation. Remarkably, recent work has linked cell cleavage dynamics to the emergence of collective behavior during embryogenesis, including pattern formation and changes in embryo-scale mechanics, raising the question how single-cell controllers coordinate embryo-scale processes. In this review, we summarize studies across species where an association between cell cleavages and collective behavior was made, discuss the underlying mechanisms, and propose that cell-to-cell variability in cell cleavage dynamics can serve as a mechanism of long-range coordination in developing embryos.
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Affiliation(s)
- Magdalena Schindler-Johnson
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Nicoletta I. Petridou
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
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Litsios A, Grys BT, Kraus OZ, Friesen H, Ross C, Masinas MPD, Forster DT, Couvillion MT, Timmermann S, Billmann M, Myers C, Johnsson N, Churchman LS, Boone C, Andrews BJ. Proteome-scale movements and compartment connectivity during the eukaryotic cell cycle. Cell 2024; 187:1490-1507.e21. [PMID: 38452761 PMCID: PMC10947830 DOI: 10.1016/j.cell.2024.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/01/2023] [Accepted: 02/12/2024] [Indexed: 03/09/2024]
Abstract
Cell cycle progression relies on coordinated changes in the composition and subcellular localization of the proteome. By applying two distinct convolutional neural networks on images of millions of live yeast cells, we resolved proteome-level dynamics in both concentration and localization during the cell cycle, with resolution of ∼20 subcellular localization classes. We show that a quarter of the proteome displays cell cycle periodicity, with proteins tending to be controlled either at the level of localization or concentration, but not both. Distinct levels of protein regulation are preferentially utilized for different aspects of the cell cycle, with changes in protein concentration being mostly involved in cell cycle control and changes in protein localization in the biophysical implementation of the cell cycle program. We present a resource for exploring global proteome dynamics during the cell cycle, which will aid in understanding a fundamental biological process at a systems level.
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Affiliation(s)
- Athanasios Litsios
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Benjamin T Grys
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Oren Z Kraus
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada; Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 3G4, Canada
| | - Helena Friesen
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Catherine Ross
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Myra Paz David Masinas
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Duncan T Forster
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Mary T Couvillion
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Stefanie Timmermann
- Institute of Molecular Genetics and Cell Biology, Department of Biology, Ulm University, Ulm 89081, Germany
| | - Maximilian Billmann
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455, USA; Institute of Human Genetics, University of Bonn, School of Medicine and University Hospital Bonn, Bonn, Germany
| | - Chad Myers
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Nils Johnsson
- Institute of Molecular Genetics and Cell Biology, Department of Biology, Ulm University, Ulm 89081, Germany
| | | | - Charles Boone
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada; RIKEN Center for Sustainable Resource Science, Wako 351-0198 Saitama, Japan.
| | - Brenda J Andrews
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada.
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Liu N, Qiang W, Jordan P, Marko J, Qiao H. Cell-cycle and Age-Related Modulations in Mouse Chromosome Stiffness. bioRxiv 2024:2024.03.06.583771. [PMID: 38559262 PMCID: PMC10979861 DOI: 10.1101/2024.03.06.583771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The intricate structure of chromosomes is complex, and many aspects of chromosome configuration/organization remain to be fully understood. Measuring chromosome stiffness can provide valuable insights into their structure. However, the nature of chromosome stiffness, whether static or dynamic, remains elusive. In this study, we analyzed chromosome stiffness in MI and MII oocytes. We revealed that MI oocytes had a ten-fold increase in stiffness compared to mitotic chromosomes, whereas chromosome stiffness in MII oocytes was relatively low chromosome. We then investigated the contribution of meiosis-specific cohesin complexes to chromosome stiffness in MI and MII oocytes. Surprisingly, the Young's modulus of chromosomes from the three meiosis-specific cohesin mutants did not exhibit significant differences compared to the wild type, indicating that these proteins may not play a substantial role in determining chromosome stiffness. Additionally, our findings revealed an age-related increase in chromosome stiffness in MI oocytes. Age correlates with elevated DNA damage levels, so we investigated the impact of etoposide-induced DNA damage on chromosome stiffness, discovering a reduction in stiffness in response to such damage in MI oocytes. Overall, our study underscores the dynamic nature of chromosome stiffness, subject to changes influenced by the cell cycle and age.
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Affiliation(s)
- Ning Liu
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Wenan Qiang
- Center for Developmental Therapeutics, Northwestern University, Evanston, IL, USA
| | - Philip Jordan
- Biochemistry and Molecular Biology Departments, Johns Hopkins University, Baltimore, MD, USA
- School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - John Marko
- Department of Molecular Biosciences, Northwestern University, Evanston, IL, USA
- Department of Physics and Astronomy, Northwestern University, Evanston, IL, USA
| | - Huanyu Qiao
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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Basei FL, E Silva IR, Dias PRF, Ferezin CC, Peres de Oliveira A, Issayama LK, Moura LAR, da Silva FR, Kobarg J. The Mitochondrial Connection: The Nek Kinases' New Functional Axis in Mitochondrial Homeostasis. Cells 2024; 13:473. [PMID: 38534317 DOI: 10.3390/cells13060473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/28/2024] Open
Abstract
Mitochondria provide energy for all cellular processes, including reactions associated with cell cycle progression, DNA damage repair, and cilia formation. Moreover, mitochondria participate in cell fate decisions between death and survival. Nek family members have already been implicated in DNA damage response, cilia formation, cell death, and cell cycle control. Here, we discuss the role of several Nek family members, namely Nek1, Nek4, Nek5, Nek6, and Nek10, which are not exclusively dedicated to cell cycle-related functions, in controlling mitochondrial functions. Specifically, we review the function of these Neks in mitochondrial respiration and dynamics, mtDNA maintenance, stress response, and cell death. Finally, we discuss the interplay of other cell cycle kinases in mitochondrial function and vice versa. Nek1, Nek5, and Nek6 are connected to the stress response, including ROS control, mtDNA repair, autophagy, and apoptosis. Nek4, in turn, seems to be related to mitochondrial dynamics, while Nek10 is involved with mitochondrial metabolism. Here, we propose that the participation of Neks in mitochondrial roles is a new functional axis for the Nek family.
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Affiliation(s)
- Fernanda L Basei
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas 13083-871, Brazil
| | - Ivan Rosa E Silva
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas 13083-871, Brazil
| | - Pedro R Firmino Dias
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas 13083-871, Brazil
| | - Camila C Ferezin
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas 13083-871, Brazil
| | | | - Luidy K Issayama
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas 13083-871, Brazil
| | - Livia A R Moura
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas 13083-871, Brazil
| | | | - Jörg Kobarg
- Faculty of Pharmaceutical Sciences, University of Campinas, Campinas 13083-871, Brazil
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50
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Wu TH, Lin TY, Yang PM, Li WT, Yeh CT, Pan TL. Scutellaria baicalensis Induces Cell Apoptosis and Elicits Mesenchymal-Epithelial Transition to Alleviate Metastatic Hepatocellular Carcinoma via Modulating HSP90β. Int J Mol Sci 2024; 25:3073. [PMID: 38474318 DOI: 10.3390/ijms25053073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
Hepatocellular carcinoma is one of the most common malignant tumors in the world and shows strong metastatic potential. Current medicine for hepatocellular carcinoma therapy is invalid, while Scutellaria baicalensis Georgi exhibits the pharmaceutical potential to treat liver diseases and liver cancer. Herein, we verified the inhibitory properties and the pivotal molecules regimented by Scutellaria baicalensis on advanced hepatocellular carcinoma. At first, the viability of SK-Hep-1 cells was significantly reduced under treatment of Scutellaria baicalensis extract in a dose-dependent manner without affecting the growth of normal hepatocyte. Scutellaria baicalensis extract application could remarkably cause apoptosis of SK-Hep-1 cells through p53/cytochrome C/poly-ADP ribose polymerase cascades and arrest the cell cycle at the G1/S phase by downregulating cyclin-dependent kinases. Meanwhile, administration of Scutellaria baicalensis extract remarkably attenuated the migration capability as well as suppressed matrix metalloproteinase activity of advanced hepatocellular carcinoma cells. The proteome profiles and network analysis particularly implied that exposure to Scutellaria baicalensis extract downregulated the expression of HSP90β, and the clinical stage of hepatocellular carcinoma is also positively correlated with the HSP90β level. Combined treatment of Scutellaria baicalensis extract and HSP90β siRNAs could markedly enhance the ubiquitination activity and the degradation of vimentin to subsequently inhibit the metastatic property of SK-Hep-1 cells. Moreover, application of Scutellaria baicalensis extract and HSP90β siRNAs depleted phosphorylation of AKT, which stimulated the expression of p53 and consecutively triggered cell apoptosis. These findings suggest that HSP90β may be a prospective target for the effective therapy of advanced hepatocellular carcinoma via accelerating apoptosis of hepatocellular carcinoma cells and eliciting mesenchymal-epithelial transition with the administration of Scutellaria baicalensis extract.
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Affiliation(s)
- Tung-Ho Wu
- Surgical Critical Care Division of Cardiovascular Surgical Department, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
| | - Tung-Yi Lin
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital at Keelung, Keelung 204, Taiwan
| | - Pei-Ming Yang
- TMU Research Center of Cancer Translational Medicine, Taipei 110, Taiwan
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
| | - Wen-Tai Li
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan
| | - Chau-Ting Yeh
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Tai-Long Pan
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Research Center for Food and Cosmetic Safety and Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
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