1
|
San TT, Kim J, Kim HJ. Histone Lysine Demethylase KDM5 Inhibitor CPI-455 Induces Astrocytogenesis in Neural Stem Cells. ACS Chem Neurosci 2024; 15:1570-1580. [PMID: 38501572 DOI: 10.1021/acschemneuro.4c00003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024] Open
Abstract
Lysine-specific histone demethylase 5A (KDM5A) is known to facilitate proliferation in cancer cells and maintain stemness to repress the astrocytic differentiation of neural stem cells (NSCs). In the study presented here, we investigated the effect of a KDM5 inhibitor, CPI-455, on NSC fate control. CPI-455 induced astrocytogenesis in NSCs during differentiation. Kdm5a, but not Kdm5c, knockdown induced glial fibrillary acidic protein (Gfap) transcription. CPI-455 induced signal transducer and activator of transcription 3, increased bone morphogenetic protein 2 expression, and enhanced mothers against decapentaplegic homolog 1/5/9 phosphorylation. The treatment of CPI-455 enhanced the methylation of histone H3 lysine 4 in the Gfap promoter when compared to that of the dimethyl sulfoxide control. In addition, CPI-455 treatment significantly reduced the recruitment of KDM5A to the Gfap promoter. Our data suggest that the KDM5 inhibitor CPI-455 effectively controls NSC cell fate via KDM5A inhibition and induces astrocytogenesis.
Collapse
Affiliation(s)
- Thin Thin San
- Neuropharmacology and Stem Cell Lab, College of Pharmacy, Chung-Ang University, 06974 Seoul, Republic of Korea
| | - Junhyung Kim
- Neuropharmacology and Stem Cell Lab, College of Pharmacy, Chung-Ang University, 06974 Seoul, Republic of Korea
| | - Hyun-Jung Kim
- Neuropharmacology and Stem Cell Lab, College of Pharmacy, Chung-Ang University, 06974 Seoul, Republic of Korea
| |
Collapse
|
2
|
Müller T, Reichlmeir M, Hau AC, Wittig I, Schulte D. The neuronal transcription factor MEIS2 is a calpain-2 protease target. J Cell Sci 2024; 137:jcs261482. [PMID: 38305737 PMCID: PMC10941658 DOI: 10.1242/jcs.261482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 01/25/2024] [Indexed: 02/03/2024] Open
Abstract
Tight control over transcription factor activity is necessary for a sensible balance between cellular proliferation and differentiation in the embryo and during tissue homeostasis by adult stem cells, but mechanistic details have remained incomplete. The homeodomain transcription factor MEIS2 is an important regulator of neurogenesis in the ventricular-subventricular zone (V-SVZ) adult stem cell niche in mice. We here identify MEIS2 as direct target of the intracellular protease calpain-2 (composed of the catalytic subunit CAPN2 and the regulatory subunit CAPNS1). Phosphorylation at conserved serine and/or threonine residues, or dimerization with PBX1, reduced the sensitivity of MEIS2 towards cleavage by calpain-2. In the adult V-SVZ, calpain-2 activity is high in stem and progenitor cells, but rapidly declines during neuronal differentiation, which is accompanied by increased stability of MEIS2 full-length protein. In accordance with this, blocking calpain-2 activity in stem and progenitor cells, or overexpression of a cleavage-insensitive form of MEIS2, increased the production of neurons, whereas overexpression of a catalytically active CAPN2 reduced it. Collectively, our results support a key role for calpain-2 in controlling the output of adult V-SVZ neural stem and progenitor cells through cleavage of the neuronal fate determinant MEIS2.
Collapse
Affiliation(s)
- Tanja Müller
- Goethe University, Faculty of Medicine, University Hospital Frankfurt, Institute of Neurology (Edinger Institute), 60528 Frankfurt, Germany
- Goethe University, University Hospital Frankfurt, Dr. Senckenberg Institute of Neurooncology and Institute of Neurology (Edinger Institute), Frankfurt Cancer Institute (FCI), University Cancer Center Frankfurt (UCT), MSNZ Junior Group Translational Neurooncology, 60528 Frankfurt, Germany
- Department of Cancer Research (DoCR), Luxembourg Institute of Health (LIH), Luxembourg Centre of Neuropathology (LCNP), 1445 Luxembourg, Luxembourg
| | - Marina Reichlmeir
- Goethe University, Faculty of Medicine, University Hospital Frankfurt, Institute of Neurology (Edinger Institute), 60528 Frankfurt, Germany
| | - Ann-Christin Hau
- Goethe University, University Hospital Frankfurt, Dr. Senckenberg Institute of Neurooncology and Institute of Neurology (Edinger Institute), Frankfurt Cancer Institute (FCI), University Cancer Center Frankfurt (UCT), MSNZ Junior Group Translational Neurooncology, 60528 Frankfurt, Germany
| | - Ilka Wittig
- Goethe University, Faculty of Medicine, Institute for Cardiovascular Physiology, Functional Proteomics, 60590, Frankfurt, Germany
| | - Dorothea Schulte
- Goethe University, Faculty of Medicine, University Hospital Frankfurt, Institute of Neurology (Edinger Institute), 60528 Frankfurt, Germany
| |
Collapse
|
3
|
Sohn SY, San TT, Kim J, Kim HJ. Bortezomib Is Toxic but Induces Neurogenesis and Inhibits TUBB3 Degradation in Rat Neural Stem Cells. Biomol Ther (Seoul) 2024; 32:65-76. [PMID: 38072501 PMCID: PMC10762278 DOI: 10.4062/biomolther.2023.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/17/2023] [Accepted: 10/25/2023] [Indexed: 12/28/2023] Open
Abstract
Bortezomib (BTZ) is a proteasome inhibitor used to treat multiple myeloma (MM). However, the induction of peripheral neuropathy is one of the major concerns in using BTZ to treat MM. In the current study, we have explored the effects of BTZ (0.01-5 nM) on rat neural stem cells (NSCs). BTZ (5 nM) induced cell death; however, the percentage of neurons was increased in the presence of mitogens. BTZ reduced the B-cell lymphoma 2 (Bcl-2)/Bcl-2 associated X protein ratio in proliferating NSCs and differentiated cells. Inhibition of βIII-tubulin (TUBB3) degradation was observed, but not inhibition of glial fibrillary acidic protein degradation, and a potential PEST sequence was solely found in TUBB3. In the presence of growth factors, BTZ increased cAMP response element-binding protein (CREB) phosphorylation, brain-derived neurotrophic factor (Bdnf) transcription, BDNF expression, and Tubb3 transcription in NSCs. However, in the neuroblastoma cell line, SH-SY5Y, BTZ (1-20 nM) only increased cell death without increasing CREB phosphorylation, Bdnf transcription, or TUBB3 induction. These results suggest that although BTZ induces cell death, it activates neurogenic signals and induces neurogenesis in NSCs.
Collapse
Affiliation(s)
- Seung Yeon Sohn
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Thin Thin San
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Junhyung Kim
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Hyun-Jung Kim
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| |
Collapse
|
4
|
AlZahrani WM, AlGhamdi SA, Sohrab SS, Rehan M. Investigating a Library of Flavonoids as Potential Inhibitors of a Cancer Therapeutic Target MEK2 Using in Silico Methods. Int J Mol Sci 2023; 24:ijms24054446. [PMID: 36901876 PMCID: PMC10002492 DOI: 10.3390/ijms24054446] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/16/2023] [Accepted: 02/20/2023] [Indexed: 02/26/2023] Open
Abstract
The second leading cause of death in the world is cancer. Mitogen-activated protein kinase (MAPK) and extracellular signal-regulated protein kinase (ERK) 1 and 2 (MEK1/2) stand out among the different anticancer therapeutic targets. Many MEK1/2 inhibitors are approved and widely used as anticancer drugs. The class of natural compounds known as flavonoids is well-known for their therapeutic potential. In this study, we focus on discovering novel inhibitors of MEK2 from flavonoids using virtual screening, molecular docking analyses, pharmacokinetic prediction, and molecular dynamics (MD) simulations. A library of drug-like flavonoids containing 1289 chemical compounds prepared in-house was screened against the MEK2 allosteric site using molecular docking. The ten highest-scoring compounds based on docking binding affinity (highest score: -11.3 kcal/mol) were selected for further analysis. Lipinski's rule of five was used to test their drug-likeness, followed by ADMET predictions to study their pharmacokinetic properties. The stability of the best-docked flavonoid complex with MEK2 was examined for a 150 ns MD simulation. The proposed flavonoids are suggested as potential inhibitors of MEK2 and drug candidates for cancer therapy.
Collapse
Affiliation(s)
- Wejdan M. AlZahrani
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Shareefa A. AlGhamdi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (S.A.A.); (M.R.)
| | - Sayed S. Sohrab
- Special Infectious Agents Unit-BSL3, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohd Rehan
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (S.A.A.); (M.R.)
| |
Collapse
|
5
|
Zhao XH, Yang T, Zheng MY, Zhao P, An LY, Qi YX, Yi KQ, Zhang PC, Sun DL. Cystathionine gamma-lyase (Cth) induces efferocytosis in macrophages via ERK1/2 to modulate intestinal barrier repair. Cell Commun Signal 2023; 21:17. [PMID: 36691021 PMCID: PMC9869634 DOI: 10.1186/s12964-022-01030-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/24/2022] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND The inflammatory response induced by intestinal ischaemia‒reperfusion injury (I/R) is closely associated with infectious complications and mortality in critically ill patients, and the timely and effective clearance of apoptotic cells is an important part of reducing the inflammatory response. Studies have shown that the efferocytosis by phagocytes plays an important role. Recently, studies using small intestine organoid models showed that macrophage efferocytosis could promote the repair capacity of the intestinal epithelium. However, no studies have reported efferocytosis in the repair of I/R in animal models. RESULTS We used an in vivo efferocytosis assay and discovered that macrophage efferocytosis played an indispensable role in repairing and maintaining intestinal barrier function after I/R. In addition, the specific molecular mechanism that induced macrophage efferocytosis was Cth-ERK1/2 dependent. We found that Cth drove macrophage efferocytosis in vivo and in vitro. Overexpression/silencing Cth promoted/inhibited the ERK1/2 pathway, respectively, which in turn affected efferocytosis and mediated intestinal barrier recovery. In addition, we found that the levels of Cth and macrophage efferocytosis were positively correlated with the recovery of intestinal function in clinical patients. CONCLUSION Cth can activate the ERK1/2 signalling pathway, induce macrophage efferocytosis, and thus promote intestinal barrier repair. Video Abstract.
Collapse
Affiliation(s)
- Xiao-Hu Zhao
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, 650101, China
| | - Ting Yang
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, 650101, China
| | - Meng-Yao Zheng
- Department of Gastroenterology, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, 650101, China
| | - Peinan Zhao
- Department of Medicine (Alfred Hospital), Central Clinical School, Monash University, 99 Commercial Rd, Melbourne, VIC, 3004, Australia
| | - Li-Ya An
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, 650101, China
| | - Yu-Xing Qi
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, 650101, China
| | - Ke-Qian Yi
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, 650101, China
| | - Peng-Cheng Zhang
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, 650101, China
| | - Da-Li Sun
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Kunming Medical University/Second Faculty of Clinical Medicine, Kunming Medical University, Kunming, 650101, China.
| |
Collapse
|
6
|
Khan S, Martinez-Ledesma E, Dong J, Mahalingam R, Park SY, Piao Y, Koul D, Balasubramaniyan V, de Groot JF, Yung WKA. Neuronal differentiation drives the antitumor activity of mitogen-activated protein kinase kinase (MEK) inhibition in glioblastoma. Neurooncol Adv 2023; 5:vdad132. [PMID: 38130900 PMCID: PMC10734674 DOI: 10.1093/noajnl/vdad132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
Background Epidermal growth factor receptor (EGFR) amplification is found in nearly 40%-50% of glioblastoma cases. Several EGFR inhibitors have been tested in glioblastoma but have failed to demonstrate long-term therapeutic benefit, presumably because of acquired resistance. Targeting EGFR downstream signaling with mitogen-activated protein kinase kinase 1 and 2 (MEK1/2) inhibitors would be a more effective approach to glioblastoma treatment. We tested the therapeutic potential of MEK1/2 inhibitors in glioblastoma using 3D cultures of glioma stem-like cells (GSCs) and mouse models of glioblastoma. Methods Several MEK inhibitors were screened in an unbiased high-throughput platform using GSCs. Cell death was evaluated using flow cytometry and Western blotting (WB) analysis. RNA-seq, real-time quantitative polymerase chain reaction, immunofluorescence, and WB analysis were used to identify and validate neuronal differentiation. Results Unbiased screening of multiple MEK inhibitors in GSCs showed antiproliferative and apoptotic cell death in sensitive cell lines. An RNA-seq analysis of cells treated with trametinib, a potent MEK inhibitor, revealed upregulation of neurogenesis and neuronal differentiation genes, such as achaete-scute homolog 1 (ASCL1), delta-like 3 (DLL3), and neurogenic differentiation 4 (NeuroD4). We validated the neuronal differentiation phenotypes in vitro and in vivo using selected differentiation markers (β-III-tubulin, ASCL1, DLL3, and NeuroD4). Oral treatment with trametinib in an orthotopic GSC xenograft model significantly improved animal survival, with 25%-30% of mice being long-term survivors. Conclusions Our findings demonstrated that MEK1/2 inhibition promotes neuronal differentiation in glioblastoma, a potential additional mechanism of action of MEK1/2 inhibitors. Thus, MEK inhibitors could be efficacious in glioblastoma patients with activated EGFR/MAPK signaling.
Collapse
Affiliation(s)
- Sabbir Khan
- Department of Neuro-Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Emmanuel Martinez-Ledesma
- Department of Neuro-Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey, Nuevo León, Mexico
- Tecnologico de Monterrey, Institute for Obesity Research, Monterrey, Nuevo León, Mexico
| | - Jianwen Dong
- Department of Neuro-Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Rajasekaran Mahalingam
- Department of Symptom Research, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Soon Young Park
- Department of Neuro-Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Yuji Piao
- Department of Neuro-Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Dimpy Koul
- Department of Neuro-Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - John F de Groot
- Department of Neuro-Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Neurosurgery, University of California-San Francisco, San Francisco, California, USA
| | - W K Alfred Yung
- Department of Neuro-Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| |
Collapse
|
7
|
Liu T, Zhu X, Huang C, Chen J, Shu S, Chen G, Xu Y, Hu Y. ERK inhibition reduces neuronal death and ameliorates inflammatory responses in forebrain-specific Ppp2cα knockout mice. FASEB J 2022; 36:e22515. [PMID: 35997299 DOI: 10.1096/fj.202200293r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/24/2022] [Accepted: 08/12/2022] [Indexed: 11/11/2022]
Abstract
It has been shown that PP2A is critical for apoptosis in neural progenitor cells. However, it remains unknown whether PP2A is required for neuronal survival. To address this question, we generated forebrain-specific Ppp2cα knockout (KO) mice. We show that Ppp2cα KO mice display robust neuronal apoptosis and inflammatory responses in the postnatal cortex. Previous evidence has revealed that PD98059 is a potent ERK inhibitor and may protect the brain against cell death after cardiac arrest. To study whether PD98059 may have any effects on Ppp2cα KO mice, the latter was treated with this inhibitor. We demonstrated that the total number of cleaved caspase3 positive (+) cells in the cortex was significantly reduced in Ppp2cα KO mice treated with PD98059 compared with those without PD98059 treatment. We observed that the total number of IBA1+ cells in the cortex was significantly decreased in Ppp2cα KO mice treated with PD98059. Mechanistic analysis reveals that deletion of PP2Aca causes DNA damage, which may be attenuated by PD98059. Together, this study suggests that inhibition of ERK may be an effective strategy to reduce cell death in brain diseases with abnormal neuronal apoptosis.
Collapse
Affiliation(s)
- Tingting Liu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Institute of Brain Science, Nanjing University, Nanjing, China
| | - Xiaolei Zhu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Institute of Brain Science, Nanjing University, Nanjing, China
| | - Chaoli Huang
- State Key Laboratory of Pharmaceutical Biotechnology, MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Jiang Chen
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Institute of Brain Science, Nanjing University, Nanjing, China
| | - Shu Shu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Institute of Brain Science, Nanjing University, Nanjing, China
| | - Guiquan Chen
- State Key Laboratory of Pharmaceutical Biotechnology, MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Yun Xu
- Department of Neurology, Drum Tower Hospital, Medical School and The State Key Laboratory of Pharmaceutical Biotechnology, Institute of Brain Science, Nanjing University, Nanjing, China
| | - Yimin Hu
- Department of Anesthesiology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| |
Collapse
|
8
|
Dai Y, Liu J, Zhang X, Min X, Wu J, Du S, Li T, Liu L, Ding Z. HSPA12A improves endothelial integrity to attenuate lung injury during endotoxemia through activating ERKs and Akt-dependent signaling. Int Immunopharmacol 2021; 99:107987. [PMID: 34343936 DOI: 10.1016/j.intimp.2021.107987] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/27/2021] [Accepted: 07/12/2021] [Indexed: 10/20/2022]
Abstract
Acute lung injury (ALI) is a critical manifestation of sepsis/septic shock. Disruption of endothelial barrier function is critical for ALI pathogenesis; however, the regulation of endothelial barrier integrity remains largely unclear. Heat shock protein A12A (HSPA12A) is an atypical member of HSP70 family. We have recently demonstrated that hepatocyte HSPA12A attenuated the bacteria endotoxin (lipopolysaccharide, LPS)-induced liver injury. However, the role of HSPA12A in endothelial barrier function and ALI is unknown. Here in this study, HSPA12A showed upregulation in lungs of mice during bacteria endotoxin (lipopolysaccharide, LPS)-induced lung injury in vivo and in primary human umbilical vein endothelial cells (HUVECs) during LPS-induced barrier disruption in vitro. Knockout of HSPA12A in mice exacerbated LPS-induced ALI. Intriguingly, overexpression of HSPA12A in HUVECs attenuated the LPS-induced endothelial hyperpermeability. In line with this, HSPA12A overexpression increased VE-cadherin and decreased VEGF expression following LPS treatment in HUVECs. Also, knockout of HSPA12A enhanced the LPS-evoked pulmonary endothelial cell apoptosis in mice whereas overexpression of HSPA12A inhibited the LPS-induced death of HUVECs. The levels of ERKs and Akt phosphorylation in HUVECs were promoted by HSPA12A overexpression when cells exposed to LPS. Importantly, inhibition of either ERKs or Akt diminished the HSPA12A-induced protection from LPS-induced endothelial hyperpermeability and death. Taken together, these findings indicated that HSPA12A is a novel regulator of endothelial barrier function through both ERKs and Akt-mediated signaling. HSPA12A might represent a viable strategy for the pulmonary protection against endotoxemia challenge.
Collapse
Affiliation(s)
- Yuan Dai
- Department of Anesthesiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Jiali Liu
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xiaojin Zhang
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xinxu Min
- Department of Anesthesiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Jun Wu
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Shuya Du
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Tingting Li
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Li Liu
- Department of Geriatrics, Jiangsu Provincial Key Laboratory of Geriatrics, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zhengnian Ding
- Department of Anesthesiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| |
Collapse
|
9
|
Zhu Y, Huang R, Wu Z, Song S, Cheng L, Zhu R. Deep learning-based predictive identification of neural stem cell differentiation. Nat Commun 2021; 12:2614. [PMID: 33972525 PMCID: PMC8110743 DOI: 10.1038/s41467-021-22758-0] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 03/24/2021] [Indexed: 12/31/2022] Open
Abstract
The differentiation of neural stem cells (NSCs) into neurons is proposed to be critical in devising potential cell-based therapeutic strategies for central nervous system (CNS) diseases, however, the determination and prediction of differentiation is complex and not yet clearly established, especially at the early stage. We hypothesize that deep learning could extract minutiae from large-scale datasets, and present a deep neural network model for predictable reliable identification of NSCs fate. Remarkably, using only bright field images without artificial labelling, our model is surprisingly effective at identifying the differentiated cell types, even as early as 1 day of culture. Moreover, our approach showcases superior precision and robustness in designed independent test scenarios involving various inducers, including neurotrophins, hormones, small molecule compounds and even nanoparticles, suggesting excellent generalizability and applicability. We anticipate that our accurate and robust deep learning-based platform for NSCs differentiation identification will accelerate the progress of NSCs applications. The differentiation of neural stem cells (NSCs) into neurons is a critical part in devising potential cell-based therapeutic strategies for central nervous system diseases but NSCs fate determination and prediction is problematic. Here, the authors present a deep neural network model for predictable reliable identification of NSCs fate.
Collapse
Affiliation(s)
- Yanjing Zhu
- Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, School of Life Science and Technology, Tongji University, Shanghai, China.,Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
| | - Ruiqi Huang
- Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, School of Life Science and Technology, Tongji University, Shanghai, China.,Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
| | - Zhourui Wu
- Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, School of Life Science and Technology, Tongji University, Shanghai, China.,Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
| | - Simin Song
- Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, School of Life Science and Technology, Tongji University, Shanghai, China.,Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China
| | - Liming Cheng
- Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, School of Life Science and Technology, Tongji University, Shanghai, China. .,Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China.
| | - Rongrong Zhu
- Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine, School of Life Science and Technology, Tongji University, Shanghai, China. .,Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration, Tongji University, Ministry of Education, Shanghai, China.
| |
Collapse
|
10
|
Krishnan M, Kumar S, Kangale LJ, Ghigo E, Abnave P. The Act of Controlling Adult Stem Cell Dynamics: Insights from Animal Models. Biomolecules 2021; 11:biom11050667. [PMID: 33946143 PMCID: PMC8144950 DOI: 10.3390/biom11050667] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/02/2021] [Accepted: 04/09/2021] [Indexed: 12/12/2022] Open
Abstract
Adult stem cells (ASCs) are the undifferentiated cells that possess self-renewal and differentiation abilities. They are present in all major organ systems of the body and are uniquely reserved there during development for tissue maintenance during homeostasis, injury, and infection. They do so by promptly modulating the dynamics of proliferation, differentiation, survival, and migration. Any imbalance in these processes may result in regeneration failure or developing cancer. Hence, the dynamics of these various behaviors of ASCs need to always be precisely controlled. Several genetic and epigenetic factors have been demonstrated to be involved in tightly regulating the proliferation, differentiation, and self-renewal of ASCs. Understanding these mechanisms is of great importance, given the role of stem cells in regenerative medicine. Investigations on various animal models have played a significant part in enriching our knowledge and giving In Vivo in-sight into such ASCs regulatory mechanisms. In this review, we have discussed the recent In Vivo studies demonstrating the role of various genetic factors in regulating dynamics of different ASCs viz. intestinal stem cells (ISCs), neural stem cells (NSCs), hematopoietic stem cells (HSCs), and epidermal stem cells (Ep-SCs).
Collapse
Affiliation(s)
- Meera Krishnan
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Gurgaon-Faridabad Ex-pressway, Faridabad 121001, India; (M.K.); (S.K.)
| | - Sahil Kumar
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Gurgaon-Faridabad Ex-pressway, Faridabad 121001, India; (M.K.); (S.K.)
| | - Luis Johnson Kangale
- IRD, AP-HM, SSA, VITROME, Aix-Marseille University, 13385 Marseille, France;
- Institut Hospitalo Universitaire Méditerranée Infection, 13385 Marseille, France;
| | - Eric Ghigo
- Institut Hospitalo Universitaire Méditerranée Infection, 13385 Marseille, France;
- TechnoJouvence, 13385 Marseille, France
| | - Prasad Abnave
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Gurgaon-Faridabad Ex-pressway, Faridabad 121001, India; (M.K.); (S.K.)
- Correspondence:
| |
Collapse
|
11
|
Lee HR, Ann J, Kim YM, Lee J, Kim HJ. The KDM5 Inhibitor KDM5-C70 Induces Astrocyte Differentiation in Rat Neural Stem Cells. ACS Chem Neurosci 2021; 12:441-446. [PMID: 33482060 DOI: 10.1021/acschemneuro.0c00613] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Members of the lysine-specific histone demethylase 5 (KDM5/JARID1) family are known to play important roles in stem cell fate determination. Here, using the KDM5 inhibitor C70 (KDM5-C70), we demonstrated that the histone demethylase activity of the KDM5 enzyme is essential for the repression of astrocytic differentiation of neural stem cells (NSCs). KDM5-C70 treatment activated the glial fibrillary acidic protein (Gfap) gene by increasing the trimethylation of histone H3 lysine 4 in the promoter regions and subsequently induced astrocytogenesis in NSCs. In addition, treatment of NSCs with KDM5-C70 activated Janus kinase-signal transducer and activator of transcription (JAK-STAT3) signaling and increased the mRNA expression of transforming growth factor-beta 1 (Tgf-β1). Our data provide evidence that KDM5 is a promising target for NSC fate modulation and suggest that epigenetic regulation is important for NSC fate determination.
Collapse
Affiliation(s)
- Ha-Rim Lee
- College of Pharmacy, Chung-Ang University, Seoul 156-756, Republic of Korea
| | - Jihyae Ann
- College of Pharmacy, Seoul National University, Seoul151-742, Republic of Korea
| | - Young Min Kim
- College of Pharmacy, Chung-Ang University, Seoul 156-756, Republic of Korea
| | - Jeewoo Lee
- College of Pharmacy, Seoul National University, Seoul151-742, Republic of Korea
| | - Hyun-Jung Kim
- College of Pharmacy, Chung-Ang University, Seoul 156-756, Republic of Korea
| |
Collapse
|
12
|
Kim YM, Kim HJ. Proteasome Inhibitor MG132 is Toxic and Inhibits the Proliferation of Rat Neural Stem Cells but Increases BDNF Expression to Protect Neurons. Biomolecules 2020; 10:biom10111507. [PMID: 33147870 PMCID: PMC7692322 DOI: 10.3390/biom10111507] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/21/2020] [Accepted: 10/27/2020] [Indexed: 12/31/2022] Open
Abstract
Regulation of protein expression is essential for maintaining normal cell function. Proteasomes play important roles in protein degradation and dysregulation of proteasomes is implicated in neurodegenerative disorders. In this study, using a proteasome inhibitor MG132, we showed that proteasome inhibition reduces neural stem cell (NSC) proliferation and is toxic to NSCs. Interestingly, MG132 treatment increased the percentage of neurons in both proliferation and differentiation culture conditions of NSCs. Proteasome inhibition reduced B-cell lymphoma 2 (Bcl-2)/Bcl-2 associated X protein ratio. In addition, MG132 treatment induced cAMP response element-binding protein phosphorylation and increased the expression of brain-derived neurotrophic factor transcripts and proteins. These data suggest that proteasome function is important for NSC survival and differentiation. Moreover, although MG132 is toxic to NSCs, it may increase neurogenesis. Therefore, by modifying MG132 chemical structure and developing none toxic proteasome inhibitors, neurogenic chemicals can be developed to control NSC cell fate.
Collapse
Affiliation(s)
| | - Hyun-Jung Kim
- Correspondence: ; Tel.: +82-2-820-5619; Fax: +82-2-816-7338
| |
Collapse
|
13
|
Matsumoto S, Yokota S, Chosa N, Kyakumoto S, Kimura H, Kamo M, Satoh K, Ishisaki A. Receptor tyrosine kinase ligands and inflammatory cytokines cooperatively suppress the fibrogenic activity in temporomandibular-joint-derived fibroblast-like synoviocytes via mitogen-activated protein kinase kinase/extracellular signal-regulated kinase. Exp Ther Med 2020; 20:1967-1974. [PMID: 32782506 PMCID: PMC7401313 DOI: 10.3892/etm.2020.8944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 04/08/2020] [Indexed: 11/06/2022] Open
Abstract
Osteoarthritis (OA)-related fibrosis is a possible cause of temporomandibular joint (TMJ) stiffness. However, the molecular mechanisms underlying the fibrogenic activity in fibroblast-like synoviocytes (FLSs) remain to be clarified. The present study examined the effects of receptor tyrosine kinase (RTK) ligands, such as fibroblast growth factor (FGF)-1 and epidermal growth factor (EGF), on myofibroblastic differentiation of the FLS cell line FLS1, which is derived from the mouse TMJ. The present study revealed that both FGF-1 and EGF dose-dependently suppressed the expression of the myofibroblast (MF) markers, including α-smooth muscle actin (α-SMA) and type I collagen, in FLS1 cells. Additionally, both FGF-1 and EGF activated extracellular signal-regulated kinase (ERK) in FLS1 cells. In addition, the mitogen-activated protein kinase (MAPK)/ERK kinase (MEK) inhibitor U0126 abrogated the FGF-1- and EGF-mediated suppression of MF marker expression. On the other hand, inflammatory cytokines, such as interleukin-1β and tumor necrosis factor-α, also suppressed the expression of MF markers in FLS1 cells. Importantly, U0126 abrogated the inflammatory cytokine-mediated suppression of MF marker expression. Interestingly, RTK ligands and inflammatory cytokines additively suppressed the expression of type I collagen. These results suggested that RTK ligands and inflammatory cytokines cooperatively inhibited the fibrogenic activity in FLSs derived from the TMJ in a MEK/ERK-dependent manner. The present findings partially clarify the molecular mechanisms underlying the development of OA-related fibrosis in the TMJ and may aid in identifying therapeutic targets for this condition. Additionally, FGF-1 and EGF could be therapeutically utilized to prevent OA-related fibrosis around the inflammatory TMJ.
Collapse
Affiliation(s)
- Shikino Matsumoto
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan.,Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Iwate 020-8505, Japan
| | - Seiji Yokota
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
| | - Naoyuki Chosa
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
| | - Seiko Kyakumoto
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
| | - Hitomichi Kimura
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Iwate 020-8505, Japan
| | - Masaharu Kamo
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Iwate 020-8505, Japan
| | - Akira Ishisaki
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
| |
Collapse
|
14
|
Breathwaite E, Weaver J, Odanga J, dela Pena-Ponce M, Lee JB. 3D Bioprinted Osteogenic Tissue Models for In Vitro Drug Screening. Molecules 2020; 25:E3442. [PMID: 32751124 PMCID: PMC7435717 DOI: 10.3390/molecules25153442] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 02/08/2023] Open
Abstract
Metabolic bone disease affects hundreds of millions of people worldwide, and as a result, in vitro models of bone tissue have become essential tools to help analyze bone pathogenesis, develop drug screening, and test potential therapeutic strategies. Drugs that either promote or impair bone formation are in high demand for the treatment of metabolic bone diseases. These drugs work by targeting numerous signaling pathways responsible for regulating osteogenesis such as Hedgehog, Wnt/β-catenin, and PI3K-AKT. In this study, differentiated bone marrow-derived mesenchymal stem cell (BM-MSC) scaffold-free 3D bioprinted constructs and 2D monolayer cultures were utilized to screen four drugs predicted to either promote (Icariin and Purmorphamine) or impair osteogenesis (PD98059 and U0126). Osteogenic differentiation capacity was analyzed over a four week culture period by evaluating mineralization, alkaline phosphatase (ALP) activity, and osteogenesis related gene expression. Responses to drug treatment were observed in both 3D differentiated constructs and 2D monolayer cultures. After four weeks in culture, 3D differentiated constructs and 2D monolayer cultures treated with Icariin or Purmorphamine showed increased mineralization, ALP activity, and the gene expression of bone formation markers (BGLAP, SSP1, and COL1A1), signaling molecules (MAPK1, WNT1, and AKT1), and transcription factors (RUNX2 and GLI1) that regulate osteogenic differentiation relative to untreated. 3D differentiated constructs and 2D monolayer cultures treated with PD98059 or U0126 showed decreased mineralization, ALP activity, and the expression of the aforementioned genes BGLAP, SPP1, COL1A1, MAPK1, AKT1, RUNX2, and GLI1 relative to untreated. Differences in ALP activity and osteogenesis related gene expression relative to untreated cells cultured in a 2D monolayer were greater in 3D constructs compared to 2D monolayer cultures. These findings suggest that our bioprinted bone model system offers a more sensitive, biologically relevant drug screening platform than traditional 2D monolayer in vitro testing platforms.
Collapse
Affiliation(s)
| | | | | | | | - Jung Bok Lee
- Institute of Regenerative Medicine, LifeNet Health, 1864 Concert Drive, Virginia Beach, VA 23453, USA; (E.B.); (J.W.); (J.O.); (M.d.P.-P.)
| |
Collapse
|
15
|
Early But Not Delayed Optogenetic RAF Activation Promotes Astrocytogenesis in Mouse Neural Progenitors. J Mol Biol 2020; 432:4358-4368. [PMID: 32598937 DOI: 10.1016/j.jmb.2020.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 11/23/2022]
Abstract
The RAS/RAF/MEK/ERK pathway promotes gliogenesis but the kinetic role of RAF1, a key RAF kinase, in the induction of astrocytogenesis remains to be elucidated. To address this challenge, we determine the temporal functional outcome of RAF1 during mouse neural progenitor cell differentiation using an optogenetic RAF1 system (OptoRAF1). OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1. We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes. However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window. In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Collapse
|
16
|
Functional Group-Dependent Induction of Astrocytogenesis and Neurogenesis by Flavone Derivatives. Biomolecules 2019; 9:biom9120812. [PMID: 31810286 PMCID: PMC6995541 DOI: 10.3390/biom9120812] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/26/2019] [Accepted: 11/29/2019] [Indexed: 01/17/2023] Open
Abstract
Neural stem cells (NSCs) differentiate into multiple cell types, including neurons, astrocytes, and oligodendrocytes, and provide an excellent platform to screen drugs against neurodegenerative diseases. Flavonoids exert a wide range of biological functions on several cell types and affect the fate of NSCs. In the present study, we investigated whether the structure-activity relationships of flavone derivatives influence NSC differentiation. As previously reported, we observed that PD98059 (2′-amino-3′-methoxy-flavone), compound 2 (3′-methoxy-flavone) induced astrocytogenesis. In the present study, we showed that compound 3 (2′-hydroxy-3′-methoxy-flavone), containing a 3′-methoxy group, and a non-bulky group at C2′ and C4′, induced astrocytogenesis through JAK-STAT3 signaling pathway. However, compound 1 and 7–12 without the methoxy group did not show such effects. Interestingly, the compounds 4 (2′,3′-dimethoxyflavone), 5 (2′-N-phenylacetamido-3′-methoxy-flavone), and 6 (3′,4′-dimethoxyflavone) containing 3′-methoxy could not promote astrocytic differentiation, suggesting that both the methoxy groups at C3′ and non-bulky group at C2′ and C4′ are required for the induction of astrocytogenesis. Notably, compound 6 promoted neuronal differentiation, whereas its 4′-demethoxylated analog, compound 2, repressed neurogenesis, suggesting an essential role of the methoxy group at C4′ in neurogenesis. These findings revealed that subtle structural changes of flavone derivatives have pronounced effects on NSC differentiation and can guide to design and develop novel flavone chemicals targeting NSCs fate regulation.
Collapse
|