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Castellón JO, Ofori S, Burton NR, Julio AR, Turmon AC, Armenta E, Sandoval C, Boatner LM, Takayoshi EE, Faragalla M, Taylor C, Zhou AL, Tran K, Shek J, Yan T, Desai HS, Fregoso OI, Damoiseaux R, Backus KM. Chemoproteomics Identifies State-Dependent and Proteoform-Selective Caspase-2 Inhibitors. J Am Chem Soc 2024; 146:14972-14988. [PMID: 38787738 DOI: 10.1021/jacs.3c12240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
Caspases are a highly conserved family of cysteine-aspartyl proteases known for their essential roles in regulating apoptosis, inflammation, cell differentiation, and proliferation. Complementary to genetic approaches, small-molecule probes have emerged as useful tools for modulating caspase activity. However, due to the high sequence and structure homology of all 12 human caspases, achieving selectivity remains a central challenge for caspase-directed small-molecule inhibitor development efforts. Here, using mass spectrometry-based chemoproteomics, we first identify a highly reactive noncatalytic cysteine that is unique to caspase-2. By combining both gel-based activity-based protein profiling (ABPP) and a tobacco etch virus (TEV) protease activation assay, we then identify covalent lead compounds that react preferentially with this cysteine and afford a complete blockade of caspase-2 activity. Inhibitory activity is restricted to the zymogen or precursor form of monomeric caspase-2. Focused analogue synthesis combined with chemoproteomic target engagement analysis in cellular lysates and in cells yielded both pan-caspase-reactive molecules and caspase-2 selective lead compounds together with a structurally matched inactive control. Application of this focused set of tool compounds to stratify the functions of the zymogen and partially processed (p32) forms of caspase-2 provide evidence to support that caspase-2-mediated response to DNA damage is largely driven by the partially processed p32 form of the enzyme. More broadly, our study highlights future opportunities for the development of proteoform-selective caspase inhibitors that target nonconserved and noncatalytic cysteine residues.
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Affiliation(s)
- José O Castellón
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
| | - Samuel Ofori
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
| | - Nikolas R Burton
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Ashley R Julio
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Alexandra C Turmon
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Ernest Armenta
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Carina Sandoval
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, California 90095, United States
| | - Lisa M Boatner
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Evan E Takayoshi
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Marina Faragalla
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Cameron Taylor
- California NanoSystems Institute (CNSI), UCLA, Los Angeles, California 90095, United States
| | - Ann L Zhou
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Ky Tran
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Jeremy Shek
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Tianyang Yan
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
| | - Heta S Desai
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
| | - Oliver I Fregoso
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, California 90095, United States
| | - Robert Damoiseaux
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California 90095, United States
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, UCLA, Los Angeles, California 90095, United States
- California NanoSystems Institute (CNSI), UCLA, Los Angeles, California 90095, United States
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, California 90095, United States
- Department of Bioengineering, Samueli School of Engineering, UCLA, Los Angeles, California 90095, United States
| | - Keriann M Backus
- Biological Chemistry Department, David Geffen School of Medicine, UCLA, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, United States
- DOE Institute for Genomics and Proteomics, UCLA, Los Angeles, California 90095, United States
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California 90095, United States
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, UCLA, Los Angeles, California 90095, United States
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Castellón JO, Ofori S, Armenta E, Burton N, Boatner LM, Takayoshi EE, Faragalla M, Zhou A, Tran K, Shek J, Yan T, Desai HS, Backus KM. Chemoproteomics identifies proteoform-selective caspase-2 inhibitors. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.25.563785. [PMID: 37961563 PMCID: PMC10634807 DOI: 10.1101/2023.10.25.563785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Caspases are a highly conserved family of cysteine-aspartyl proteases known for their essential roles in regulating apoptosis, inflammation, cell differentiation, and proliferation. Complementary to genetic approaches, small-molecule probes have emerged as useful tools for modulating caspase activity. However, due to the high sequence and structure homology of all twelve human caspases, achieving selectivity remains a central challenge for caspase-directed small-molecule inhibitor development efforts. Here, using mass spectrometry-based chemoproteomics, we first identify a highly reactive non-catalytic cysteine that is unique to caspase-2. By combining both gel-based activity-based protein profiling (ABPP) and a tobacco etch virus (TEV) protease activation assay, we then identify covalent lead compounds that react preferentially with this cysteine and afford a complete blockade of caspase-2 activity. Inhibitory activity is restricted to the zymogen or precursor form of monomeric caspase-2. Focused analogue synthesis combined with chemoproteomic target engagement analysis in cellular lysates and in cells yielded both pan-caspase reactive molecules and caspase-2 selective lead compounds together with a structurally matched inactive control. Application of this focused set of tool compounds to stratify caspase contributions to initiation of intrinsic apoptosis, supports compensatory caspase-9 activity in the context of caspase-2 inactivation. More broadly, our study highlights future opportunities for the development of proteoform-selective caspase inhibitors that target non-conserved and non-catalytic cysteine residues.
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Chao OY, Nikolaus S, Yang YM, Huston JP. Neuronal circuitry for recognition memory of object and place in rodent models. Neurosci Biobehav Rev 2022; 141:104855. [PMID: 36089106 PMCID: PMC10542956 DOI: 10.1016/j.neubiorev.2022.104855] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/23/2022] [Accepted: 08/30/2022] [Indexed: 10/14/2022]
Abstract
Rats and mice are used for studying neuronal circuits underlying recognition memory due to their ability to spontaneously remember the occurrence of an object, its place and an association of the object and place in a particular environment. A joint employment of lesions, pharmacological interventions, optogenetics and chemogenetics is constantly expanding our knowledge of the neural basis for recognition memory of object, place, and their association. In this review, we summarize current studies on recognition memory in rodents with a focus on the novel object preference, novel location preference and object-in-place paradigms. The evidence suggests that the medial prefrontal cortex- and hippocampus-connected circuits contribute to recognition memory for object and place. Under certain conditions, the striatum, medial septum, amygdala, locus coeruleus and cerebellum are also involved. We propose that the neuronal circuitry for recognition memory of object and place is hierarchically connected and constructed by different cortical (perirhinal, entorhinal and retrosplenial cortices), thalamic (nucleus reuniens, mediodorsal and anterior thalamic nuclei) and primeval (hypothalamus and interpeduncular nucleus) modules interacting with the medial prefrontal cortex and hippocampus.
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Affiliation(s)
- Owen Y Chao
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA
| | - Susanne Nikolaus
- Department of Nuclear Medicine, University Hospital Düsseldorf, Heinrich-Heine University, 40225 Düsseldorf, Germany
| | - Yi-Mei Yang
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA; Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Joseph P Huston
- Center for Behavioral Neuroscience, Institute of Experimental Psychology, Heinrich-Heine University, 40225 Düsseldorf, Germany.
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4
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Chen S, Chen F, Amin N, Ren Q, Ye S, Hu Z, Tan X, Jiang M, Fang M. Defects of parvalbumin-positive interneurons in the ventral dentate gyrus region are implicated depression-like behavior in mice. Brain Behav Immun 2022; 99:27-42. [PMID: 34562597 DOI: 10.1016/j.bbi.2021.09.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 09/01/2021] [Accepted: 09/18/2021] [Indexed: 12/21/2022] Open
Abstract
Depression is an increasingly common but extremely serve mood disorder that remains poorly understood and inadequately treated. Fast-spiking parvalbumin-positive interneurons (PVIs), a subpopulation of GABAergic interneurons (GABA, g-aminobutyric acid), exhibit a widespread distribution throughout the hippocampus, and has been reported to play an important role in a variety of mental disorders. However, the relationship between depression and hippocampal PVIs remains unclear. Here in this present study, a series of experiments were conducted to clarify the potential relationship. Here, chronic unpredicted mild stress (CUMS) and Lipopolysaccharide (LPS) injection were introduced to induce depression-like behavior in mice, and led to a clear decline in PVIs numbers in the ventral hippocampal (vHPC), particularly in the ventral dentate gyrus (vDG) subfield. After a selectively removal of the PVIs in PV-ires-Cre::Ai14 mice, we confirmed that ablation of PVIs from the vDG induced depression-like behavior. Furthermore, we found that the removal of vDG-PVIs induced depression likely to be accounted for upregulation of neuroinflammation. These findings facilitate us better understand the role of hippocampal PVIs in depression.
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Affiliation(s)
- Shijia Chen
- Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China; Institute of Neuroscience, Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Fengpei Chen
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Nashwa Amin
- Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China; Institute of Neuroscience, Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310058, China; Department of Zoology, Faculty of Science, Aswan University, Aswan 81521, Egypt
| | - Qiannan Ren
- Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China; Institute of Neuroscience, Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Shan Ye
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Zhiying Hu
- Obstetrics & Gynecology Department, Zhejiang Integrated Traditional and Western Medicine Hospital, Hangzhou 310003, China
| | - Xiaoning Tan
- Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China; Institute of Neuroscience, Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Mizu Jiang
- Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Marong Fang
- Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China.
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Whylings J, Rigney N, de Vries GJ, Petrulis A. Reduction in vasopressin cells in the suprachiasmatic nucleus in mice increases anxiety and alters fluid intake. Horm Behav 2021; 133:104997. [PMID: 34062279 PMCID: PMC8529700 DOI: 10.1016/j.yhbeh.2021.104997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 04/21/2021] [Accepted: 05/10/2021] [Indexed: 11/19/2022]
Abstract
Central vasopressin (AVP) has been implicated in the control of multiple behaviors, including social behavior, anxiety-like behavior, and sickness behavior. The extent to which the different AVP-producing cell groups contribute to regulating these behaviors has not been extensively investigated. Here we test the role of AVP cells in the suprachiasmatic nucleus (SCN) in these behaviors by ablating these cells using viral-mediated, Cre-dependent caspase in male and female AVP-Cre + mice and Cre-controls. We compared anxiety and social behaviors, as well as sickness behaviors (lethargy, anhedonia (indexed by sucrose consumption), and changes in anxiety-like- and social behavior) induced via injection of bacterial lipopolysaccharide (LPS). We found that SCN AVP cell ablation increased anxiety-like behavior and sucrose consumption in both sexes, as well as increased urine marking by males in a non-social context, but did not alter behavioral responses to sickness. Our data suggest that SCN AVP does not strongly affect LPS-induced behavioral changes, but may contribute to anxiety-like behavior, and may play a role in ingestive reward/motivation and fluid intake.
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Affiliation(s)
- Jack Whylings
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA.
| | - Nicole Rigney
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA
| | - Geert J de Vries
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA; Department of Biology, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA
| | - Aras Petrulis
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA
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6
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Rigney N, Whylings J, de Vries GJ, Petrulis A. Sex Differences in the Control of Social Investigation and Anxiety by Vasopressin Cells of the Paraventricular Nucleus of the Hypothalamus. Neuroendocrinology 2021; 111:521-535. [PMID: 32541145 PMCID: PMC7736187 DOI: 10.1159/000509421] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 06/15/2020] [Indexed: 12/11/2022]
Abstract
The neuropeptide arginine-vasopressin (AVP) has long been implicated in the regulation of social behavior and communication in diverse taxa, but the source of AVP release relevant for behavior has not been precisely determined. Potential sources include hypothalamic cell populations such as the paraventricular (PVN), supraoptic, and suprachiasmatic nuclei, as well as extrahypothalamic cell groups in the extended amygdala. To address if AVP-expressing cells in the PVN are important for mouse social communication, we deleted PVN AVP-expressing cells using viral-mediated delivery of Cre-dependent caspase-9 cell death construct into the PVN of AVP-Cre-positive mice (expressing Cre-recombinase under the control of the AVP promoter) or AVP-Cre-negative littermate controls, and assessed their levels of social investigation, social communication, anxiety, sex behavior, and aggressive behavior. We found that these lesions increased social investigation in females, but not in males. However, in males but not in females, these lesions increased non-social anxiety-related behaviors in the elevated-plus maze. These results therefore point at differential involvement of PVN AVP-expressing cells in the context of social and emotional behavior in the two sexes, which may contribute to sex differences in social communication and anxiety disorders.
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Affiliation(s)
- Nicole Rigney
- Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, Georgia, USA,
| | - Jack Whylings
- Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, Georgia, USA
| | - Geert J de Vries
- Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, Georgia, USA
| | - Aras Petrulis
- Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, Georgia, USA
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7
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Whylings J, Rigney N, de Vries GJ, Petrulis A. Removal of vasopressin cells from the paraventricular nucleus of the hypothalamus enhances lipopolysaccharide-induced sickness behaviour in mice. J Neuroendocrinol 2021; 33:e12915. [PMID: 33617060 PMCID: PMC8543850 DOI: 10.1111/jne.12915] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/07/2020] [Accepted: 10/20/2020] [Indexed: 12/26/2022]
Abstract
Vasopressin (AVP) cells in the paraventricular nucleus of the hypothalamus (PVN) are activated during sickness and project to multiple nuclei responsible for the anxiety, social and motivated behaviours affected during sickness, suggesting that these cells may play a role in sickness behaviours, typically expressed as reduced mobility, increased anxiety, anhedonia and social withdrawal. In the present study, we selectively ablated AVP neurones in the PVN of male and female mice (Mus musculus) and induced sickness behaviour via injection of bacterial lipopolysaccharide (LPS). We found that PVN AVP ablation increased the effects of LPS, specifically by further decreasing sucrose preference in males and females and decreasing the social preference of males, monitored within 24 hours of LPS injection. These results suggest that PVN AVP contributes to the change in motivated behaviours during sickness and may help promote recovery from infection..
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Affiliation(s)
- Jack Whylings
- Neuroscience Institute, Georgia State University, Atlanta, GA, USA
| | - Nicole Rigney
- Neuroscience Institute, Georgia State University, Atlanta, GA, USA
| | - Geert J de Vries
- Neuroscience Institute, Georgia State University, Atlanta, GA, USA
- Department of Biology, Georgia State University, Atlanta, GA, USA
| | - Aras Petrulis
- Neuroscience Institute, Georgia State University, Atlanta, GA, USA
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Zhang YM, Zhang LY, Zhou H, Li YY, Wei KX, Li CH, Zhou T, Wang JF, Wei WJ, Hua JR, He Y, Hong T, Liu YQ. Astragalus polysaccharide inhibits radiation-induced bystander effects by regulating apoptosis in Bone Mesenchymal Stem Cells (BMSCs). Cell Cycle 2020; 19:3195-3207. [PMID: 33121344 DOI: 10.1080/15384101.2020.1838793] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
The purpose of this study was to investigate the effects of astragalus polysaccharides (APS) on the proliferation and apoptosis of bone marrow mesenchymal stem cells (BMSCs) induced by X-ray radiation-induced A549 cells bystander effect (RIBE), and to explore their mechanisms. In this study, APS increased the reduced cell proliferation rate induced by RIBE and inhibiting the apoptosis of bystander cells. In terms of mechanism, APS up-regulates the proteins Bcl-2, Bcl-xl, and down-regulates the proteins Bax and Bak, which induces a decrease in mitochondrial membrane potential, which induces the release of Cyt-c and AIF, which leads to caspase-dependent and caspase-independent pathway to cause apoptosis. In addition, we believe that ROS may be the main cause of these protein changes. APS can inhibit the generation of ROS in bystander cells and thus inhibit the activation of the mitochondrial pathway, further preventing cellular damage caused by RIBE.
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Affiliation(s)
- Yi-Ming Zhang
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine , Lanzhou, China
| | - Li-Ying Zhang
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine , Lanzhou, China
| | - Heng Zhou
- Key Laboratory of Space Radiobiology of Gansu Province & Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou, China
| | - Yang-Yang Li
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine , Lanzhou, China
| | - Kong-Xi Wei
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine , Lanzhou, China
| | - Cheng-Hao Li
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine , Lanzhou, China
| | - Ting Zhou
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine , Lanzhou, China
| | - Ju-Fang Wang
- Key Laboratory of Space Radiobiology of Gansu Province & Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou, China
| | - Wen-Jun Wei
- Key Laboratory of Space Radiobiology of Gansu Province & Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou, China
| | - Jun-Rui Hua
- Key Laboratory of Space Radiobiology of Gansu Province & Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou, China
| | - Yun He
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine , Lanzhou, China
| | - Tao Hong
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine , Lanzhou, China
| | - Yong-Qi Liu
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and Universities, Gansu University of Chinese Medicine , Lanzhou, China
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9
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Nichani K, Li J, Suzuki M, Houston JP. Evaluation of Caspase-3 Activity During Apoptosis with Fluorescence Lifetime-Based Cytometry Measurements and Phasor Analyses. Cytometry A 2020; 97:1265-1275. [PMID: 32790129 PMCID: PMC7738394 DOI: 10.1002/cyto.a.24207] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 07/30/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022]
Abstract
Caspase-3 is a well-described protease with many roles that impact the fate of a cell. During apoptosis, caspase-3 acts as an executioner caspase with important proteolytic functions that lead to the final stages of programmed cell death. Owing to this key role, caspase-3 is exploited intracellularly as a target of control of apoptosis for therapeutic outcomes. Yet the activation of caspase-3 during apoptosis is challenged by other roles and functions (e.g., paracrine signaling). This brief report presents a way to track caspase-3 levels using a flow cytometer that measures excited state fluorescence lifetimes and a signal processing approach that leads to a graphical phasor-based interpretation. An established Förster resonance energy transfer (FRET) bioprobe was used for this test; the connected donor and acceptor fluorophore is cleavable by caspase-3 during apoptosis induction. With the cell-by-cell decay kinetic data and phasor analyses we generate a caspase activation trajectory, which is used to interpret activation throughout apoptosis. When lifetime-based cytometry is combined with a FRET bioprobe and phasor analyses, enzyme activation can be simplified and quantified with phase and modulation data. We envision extrapolating this approach to high content screening, and reinforce the power of phasor approaches with cytometric data. Analyses such as these can be used to cluster cells by their phase and modulation "lifetime fingerprint" when the intracellular fluorescent probe is utilized as a sensor of enzyme activity. © 2020 The Authors. Cytometry Part A published by Wiley Periodicals LLC on behalf of International Society for Advancement of Cytometry.
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Affiliation(s)
- Kapil Nichani
- Department of Chemical & Materials EngineeringNew Mexico State UniversityLas CrucesNew MexicoUSA
| | - Jianzhi Li
- Department of Chemical & Materials EngineeringNew Mexico State UniversityLas CrucesNew MexicoUSA
| | - Miho Suzuki
- Department of Functional Materials and ScienceGraduate School of Science and Engineering, Saitama UniversitySaitama338‐8570Japan
| | - Jessica P. Houston
- Department of Chemical & Materials EngineeringNew Mexico State UniversityLas CrucesNew MexicoUSA
- Department of Functional Materials and ScienceGraduate School of Science and Engineering, Saitama UniversitySaitama338‐8570Japan
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10
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Sánchez-Valdeolívar CA, Alvarez-Fitz P, Zacapala-Gómez AE, Acevedo-Quiroz M, Cayetano-Salazar L, Olea-Flores M, Castillo-Reyes JU, Navarro-Tito N, Ortuño-Pineda C, Leyva-Vázquez MA, Ortíz-Ortíz J, Castro-Coronel Y, Mendoza-Catalán MA. Phytochemical profile and antiproliferative effect of Ficus crocata extracts on triple-negative breast cancer cells. BMC Complement Med Ther 2020; 20:191. [PMID: 32571387 PMCID: PMC7309984 DOI: 10.1186/s12906-020-02993-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 06/16/2020] [Indexed: 12/25/2022] Open
Abstract
Background Some species of the Ficus genus show pharmacological activity, including antiproliferative activity, in cell lines of several cancer Types. ficus crocata is distributed in Mexico and used in traditional medicine, as it is believed to possess anti-inflammatory, analgesic, and antioxidant properties. However, as of yet, there are no scientific reports on its biological activity. This study aims to evaluate the phytochemical profile of F. crocata leaf extracts and their effects on breast cancer MDA-MB-231 cells proliferation. Moreover, the study aims to unearth possible mechanisms involved in the decrease of cell proliferation. Methods The extracts were obtained by the maceration of leaves with the solvents hexane, dichloromethane, and acetone. The phytochemical profile of the extracts was determined using gas chromatography coupled with mass analysis. Cell proliferation, apoptosis, and cell cycle analysis in MDA-MB-231 cells were determined using a Crystal violet assay, MTT assay, and Annexin-V/PI assay using flow cytometry. The data were analyzed using ANOVA and Dunnett’s test. Results The hexane (Hex-EFc), dichloromethane (Dic-EFc), and acetone (Ace-EFc) extracts of F. crocata decreased the proliferation of MDA-MB-231 cells, with Dic-EFc having the strongest effect. Dic-EFc was fractioned and its antiproliferative activity was potentiated, which enhanced its ability to induce apoptosis in MDA-MB-231 cells, as well as increased p53, procaspase-8, and procaspase-3 expression. Conclusions This study provides information on the biological activity of F. crocata extracts and suggests their potential use against triple-negative breast cancer.
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Affiliation(s)
- Carlos A Sánchez-Valdeolívar
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | | | - Ana E Zacapala-Gómez
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Macdiel Acevedo-Quiroz
- Tecnológico Nacional de México, Instituto Tecnológico de Zacatepec, Calzada Tecnológico 27, Centro, 62780, Zacatepec, Morelos, Mexico
| | - Lorena Cayetano-Salazar
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Monserrat Olea-Flores
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Jhonathan U Castillo-Reyes
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Napoleón Navarro-Tito
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Carlos Ortuño-Pineda
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Marco A Leyva-Vázquez
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Julio Ortíz-Ortíz
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Yaneth Castro-Coronel
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico
| | - Miguel A Mendoza-Catalán
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas, Ciudad Universitaria, 39090, Chilpancingo, Guerrero, Mexico.
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11
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Almuqbil RM, Heyder RS, Bielski ER, Durymanov M, Reineke JJ, da Rocha SRP. Dendrimer Conjugation Enhances Tumor Penetration and Efficacy of Doxorubicin in Extracellular Matrix-Expressing 3D Lung Cancer Models. Mol Pharm 2020; 17:1648-1662. [PMID: 32227969 DOI: 10.1021/acs.molpharmaceut.0c00083] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Doxorubicin (DOX) is a chemotherapeutic agent broadly used in the treatment of a range of solid tumors. In spite of its high potency, as is the case for many other chemotherapeutic drugs, there are many challenges associated with the use of DOX in clinical oncology. This is particularly true for DOX in the treatment of lung cancer, where in vitro potency is shown to be very high, but low lung distribution and off-target toxicity (particularly cardiotoxicity) restrict its use. Nanocarrier-based drug delivery systems (nanoDDS) have been shown to help alter biodistribution and alleviate off-target toxicity associated with DOX. While significant understanding exists regarding the design parameters to achieve those clinical benefits, much less is known regarding the design of nanoDDS capable of enhancing tumor penetration of DOX (and other drugs), which is another major factor leading to DOX's reduced efficacy. The purpose of this study was to design a dendrimer-based nanoDDS capable of enhancing the penetration of DOX as measured in an in vitro 3D lung tumor model and to correlate those results with its efficacy. Spheroids formed with the A549 human lung adenocarcinoma cells/murine fibroblast cell line (NIH/3T3 cell line) are shown to produce the essential components of the extracellular matrix (ECM), which is known as a physical barrier that hinders the transport of DOX. DOX was conjugated to generation 4 succinamic acid-terminated poly(amido-amine) (PAMAM) dendrimers (G4SA) through an enzyme-liable tetrapeptide (G4SA-GFLG-DOX), resulting in a nanoDDS with ∼5.5 DOX, -17 mV surface (ζ) potential, and a 10 nm hydrodynamic diameter (HD). The penetration of DOX to the core of the spheroid in terms of DOX fluorescence was determined to be 3.1-fold greater compared to free DOX, which positively correlated with enhanced efficacy as measured by the Caspase 3/7 assay. This improved penetration happens as the interactions between the G4SA-GFLG-DOX and the highly negatively charged ECM are minimized by shielding the protonatable amine of DOX upon conjugation, and the HD of the conjugate is kept smaller than the estimated mesh size of the ECM. Interestingly, the conjugate provided more specificity for DOX to tumor cells compared to fibroblasts, while free DOX is equally distributed in both tumor and fibroblasts as assessed in the coculture spheroids. Growth inhibition studies show that the released DOX maintains its activity and leads to tumor reduction to the same extent as free DOX. The results obtained here are of relevance for the design of dendrimer-based nanoDDS and for the treatment of solid tumors as they provide critical information regarding desirable surface characteristics and sizes for efficient tumor penetration.
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Affiliation(s)
| | | | | | - Mikhail Durymanov
- Department of Pharmaceutical Sciences, College of Pharmacy and Allied Health Professions, South Dakota State University, Brookings, South Dakota 57007, United States
| | - Joshua J Reineke
- Department of Pharmaceutical Sciences, College of Pharmacy and Allied Health Professions, South Dakota State University, Brookings, South Dakota 57007, United States
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12
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Whylings J, Rigney N, Peters NV, de Vries GJ, Petrulis A. Sexually dimorphic role of BNST vasopressin cells in sickness and social behavior in male and female mice. Brain Behav Immun 2020; 83:68-77. [PMID: 31550501 PMCID: PMC6906230 DOI: 10.1016/j.bbi.2019.09.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/29/2019] [Accepted: 09/20/2019] [Indexed: 01/23/2023] Open
Abstract
Circumstantial evidence supports the hypothesis that the sexually dimorphic vasopressin (AVP) innervation of the brain tempers sickness behavior in males. Here we test this hypothesis directly, by comparing sickness behavior in animals with or without ablations of BNST AVP cells, a major source of sexually dimorphic AVP in the brain. We treated male and female AVP-iCre+ and AVP-iCre- mice that had been injected with viral Cre-dependent caspase-3 executioner construct into the BNST with lipopolysaccharide (LPS) or sterile saline, followed by behavioral analysis. In all groups, LPS treatment reliably reduced motor behavior, increased anxiety-related behavior, and reduced sucrose preference and consumption. Male mice, whose BNST AVP cells had been ablated (AVP-iCre+), displayed only minor reductions in LPS-induced sickness behavior, whereas their female counterparts displayed, if anything, an increase in sickness behaviors. All saline-treated mice with BNST AVP cell ablations consumed more sucrose than did control mice, and males, but not females, with BNST AVP cell ablations showed reduced preference for novel conspecifics compared to control mice. These data confirm that BNST AVP cells control social behavior in a sexually dimorphic way, but do not play a critical role in altering sickness behavior.
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Affiliation(s)
- Jack Whylings
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA.
| | - Nicole Rigney
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA.
| | - Nicole V Peters
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA
| | - Geert J de Vries
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA; Department of Biology, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA.
| | - Aras Petrulis
- Neuroscience Institute, Georgia State University, 100 Piedmont Ave SE, Atlanta, GA 30303, USA.
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13
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14
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Haggerty DL, Grecco GG, Reeves KC, Atwood B. Adeno-Associated Viral Vectors in Neuroscience Research. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2019; 17:69-82. [PMID: 31890742 PMCID: PMC6931098 DOI: 10.1016/j.omtm.2019.11.012] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Adeno-associated viral vectors (AAVs) are increasingly useful preclinical tools in neuroscience research studies for interrogating cellular and neurocircuit functions and mapping brain connectivity. Clinically, AAVs are showing increasing promise as viable candidates for treating multiple neurological diseases. Here, we briefly review the utility of AAVs in mapping neurocircuits, manipulating neuronal function and gene expression, and activity labeling in preclinical research studies as well as AAV-based gene therapies for diseases of the nervous system. This review highlights the vast potential that AAVs have for transformative research and therapeutics in the neurosciences.
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Affiliation(s)
- David L. Haggerty
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Gregory G. Grecco
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Medical Scientist Training Program, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Kaitlin C. Reeves
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Brady Atwood
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Stark Neurosciences Research Institute, Indianapolis, IN 46202, USA
- Corresponding author: Brady Atwood, PhD, Department of Pharmacology & Toxicology, Indiana University School of Medicine, 320 West 15th Street, NB-400C, Indianapolis, IN 46202, USA.
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15
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Dederer V, Khmelinskii A, Huhn AG, Okreglak V, Knop M, Lemberg MK. Cooperation of mitochondrial and ER factors in quality control of tail-anchored proteins. eLife 2019; 8:45506. [PMID: 31172943 PMCID: PMC6586462 DOI: 10.7554/elife.45506] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 06/06/2019] [Indexed: 01/04/2023] Open
Abstract
Tail-anchored (TA) proteins insert post-translationally into the endoplasmic reticulum (ER), the outer mitochondrial membrane (OMM) and peroxisomes. Whereas the GET pathway controls ER-targeting, no dedicated factors are known for OMM insertion, posing the question of how accuracy is achieved. The mitochondrial AAA-ATPase Msp1 removes mislocalized TA proteins from the OMM, but it is unclear, how Msp1 clients are targeted for degradation. Here we screened for factors involved in degradation of TA proteins mislocalized to mitochondria. We show that the ER-associated degradation (ERAD) E3 ubiquitin ligase Doa10 controls cytoplasmic level of Msp1 clients. Furthermore, we identified the uncharacterized OMM protein Fmp32 and the ectopically expressed subunit of the ER-mitochondria encounter structure (ERMES) complex Gem1 as native clients for Msp1 and Doa10. We propose that productive localization of TA proteins to the OMM is ensured by complex assembly, while orphan subunits are extracted by Msp1 and eventually degraded by Doa10.
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Affiliation(s)
- Verena Dederer
- Centre for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Anton Khmelinskii
- Centre for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany.,Institute of Molecular Biology (IMB), Mainz, Germany
| | - Anna Gesine Huhn
- Centre for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Voytek Okreglak
- Calico Life Sciences LLC, South San Francisco, United States
| | - Michael Knop
- Centre for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany.,Cell Morphogenesis and Signal Transduction, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Marius K Lemberg
- Centre for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, Heidelberg, Germany
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16
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Bayless DW, Yang T, Mason MM, Susanto AAT, Lobdell A, Shah NM. Limbic Neurons Shape Sex Recognition and Social Behavior in Sexually Naive Males. Cell 2019; 176:1190-1205.e20. [PMID: 30712868 PMCID: PMC6453703 DOI: 10.1016/j.cell.2018.12.041] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/13/2018] [Accepted: 12/21/2018] [Indexed: 12/18/2022]
Abstract
Sexually naive animals have to distinguish between the sexes because they show species-typical interactions with males and females without meaningful prior experience. However, central neural pathways in naive mammals that recognize sex of other individuals remain poorly characterized. We examined the role of the principal component of the bed nucleus of stria terminalis (BNSTpr), a limbic center, in social interactions in mice. We find that activity of aromatase-expressing BNSTpr (AB) neurons appears to encode sex of other animals and subsequent displays of mating in sexually naive males. Silencing these neurons in males eliminates preference for female pheromones and abrogates mating success, whereas activating them even transiently promotes male-male mating. Surprisingly, female AB neurons do not appear to control sex recognition, mating, or maternal aggression. In summary, AB neurons represent sex of other animals and govern ensuing social behaviors in sexually naive males.
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Affiliation(s)
- Daniel W Bayless
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA
| | - Taehong Yang
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA
| | - Matthew M Mason
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA
| | - Albert A T Susanto
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA
| | - Alexandra Lobdell
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA
| | - Nirao M Shah
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA; Department of Neurobiology, Stanford University, Stanford, CA 94305, USA.
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17
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Sexually Dimorphic Vasopressin Cells Modulate Social Investigation and Communication in Sex-Specific Ways. eNeuro 2019; 6:eN-NWR-0415-18. [PMID: 30693316 PMCID: PMC6348451 DOI: 10.1523/eneuro.0415-18.2019] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/14/2018] [Accepted: 01/02/2019] [Indexed: 11/21/2022] Open
Abstract
The neuropeptide arginine vasopressin (AVP) has long been implicated in the regulation of social behavior and communication, but precisely which AVP cell groups are involved is largely unknown. To address whether the sexually dimorphic AVP cell group in the bed nucleus of the stria terminalis (BNST) is important for social communication, we deleted BNST AVP cells by viral delivery of a Cre-dependent caspase-3 cell-death construct in AVP-iCre-positive mice using AVP-iCre negative littermate as controls, and assessed social, sexual, aggressive and anxiety-related behaviors. In males, lesioning BNST AVP cells reduced social investigation of other males and increased urine marking (UM) in the presence of a live female, without altering ultrasonic vocalizations (USVs), resident-intruder aggression, copulatory behavior, anxiety, or investigation of females or their odor cues. In females, which have significantly fewer AVP cells in the BNST, these injections influenced copulatory behavior but otherwise had minimal effects on social behavior and communication, indicating that these cells contribute to sex differences in social behavioral function.
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18
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Abe C, Inoue T, Inglis MA, Viar KE, Huang L, Ye H, Rosin DL, Stornetta RL, Okusa MD, Guyenet PG. C1 neurons mediate a stress-induced anti-inflammatory reflex in mice. Nat Neurosci 2017; 20:700-707. [PMID: 28288124 PMCID: PMC5404944 DOI: 10.1038/nn.4526] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/02/2017] [Indexed: 01/26/2023]
Abstract
C1 neurons (C1), located in the medulla oblongata, mediate adaptive autonomic responses to physical stressors (e.g. hypotension, hemorrhage, lipopolysaccharide). We describe here a powerful effect of restraint stress mediated by C1: protection against renal ischemia-reperfusion injury (IRI). Restraint stress or optogenetic C1 stimulation (10 min) protected mice from IRI. The protection was reproduced by injecting splenic T-cells pre-incubated with noradrenaline or splenocytes harvested from stressed mice. Stress-induced IRI protection was absent in α7nAChR−/− mice and greatly reduced by destroying or transiently inhibiting C1. The protection conferred by C1 stimulation was eliminated by splenectomy, ganglionic blocker administration, or β2-adrenergic receptor blockade. Although C1 stimulation elevated plasma corticosterone and increased both vagal and sympathetic nerve activity, C1-mediated IRI protection persisted after subdiaphragmatic vagotomy or corticosterone receptor blockade. In conclusion, acute stress attenuates IRI by activating a cholinergic, predominantly sympathetic, anti-inflammatory pathway. C1 neurons are necessary and sufficient to mediate this effect.
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Affiliation(s)
- Chikara Abe
- Department of Pharmacology, University of Virginia, Charlottesville, Virginia, USA
| | - Tsuyoshi Inoue
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Mabel A Inglis
- Department of Pharmacology, University of Virginia, Charlottesville, Virginia, USA
| | - Kenneth E Viar
- Department of Pharmacology, University of Virginia, Charlottesville, Virginia, USA
| | - Liping Huang
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Hong Ye
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Diane L Rosin
- Department of Pharmacology, University of Virginia, Charlottesville, Virginia, USA
| | - Ruth L Stornetta
- Department of Pharmacology, University of Virginia, Charlottesville, Virginia, USA
| | - Mark D Okusa
- Department of Medicine, Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Patrice G Guyenet
- Department of Pharmacology, University of Virginia, Charlottesville, Virginia, USA
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19
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Weber F, Dan Y. Circuit-based interrogation of sleep control. Nature 2016; 538:51-59. [PMID: 27708309 DOI: 10.1038/nature19773] [Citation(s) in RCA: 228] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 08/17/2016] [Indexed: 12/20/2022]
Abstract
Sleep is a fundamental biological process observed widely in the animal kingdom, but the neural circuits generating sleep remain poorly understood. Understanding the brain mechanisms controlling sleep requires the identification of key neurons in the control circuits and mapping of their synaptic connections. Technical innovations over the past decade have greatly facilitated dissection of the sleep circuits. This has set the stage for understanding how a variety of environmental and physiological factors influence sleep. The ability to initiate and terminate sleep on command will also help us to elucidate its functions within and beyond the brain.
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Affiliation(s)
- Franz Weber
- Division of Neurobiology, Department of Molecular and Cell Biology, Helen Wills Neuroscience Institute, Howard Hughes Medical Institute, University of California, Berkeley, California 94720, USA
| | - Yang Dan
- Division of Neurobiology, Department of Molecular and Cell Biology, Helen Wills Neuroscience Institute, Howard Hughes Medical Institute, University of California, Berkeley, California 94720, USA
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20
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Aviello G, D'Agostino G. Tools for Controlling Activity of Neural Circuits Can Boost Gastrointestinal Research. Front Pharmacol 2016; 7:43. [PMID: 26973530 PMCID: PMC4777719 DOI: 10.3389/fphar.2016.00043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/16/2016] [Indexed: 12/13/2022] Open
Affiliation(s)
- Gabriella Aviello
- National Children's Research Centre, Our Lady's Children's Hospital Dublin, Ireland
| | - Giuseppe D'Agostino
- Rowett Institute of Nutrition and Health and Institute of Medical Sciences, University of Aberdeen Aberdeen, UK
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21
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Bayless DW, Shah NM. Genetic dissection of neural circuits underlying sexually dimorphic social behaviours. Philos Trans R Soc Lond B Biol Sci 2016; 371:20150109. [PMID: 26833830 DOI: 10.1098/rstb.2015.0109] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2015] [Indexed: 11/12/2022] Open
Abstract
The unique hormonal, genetic and epigenetic environments of males and females during development and adulthood shape the neural circuitry of the brain. These differences in neural circuitry result in sex-typical displays of social behaviours such as mating and aggression. Like other neural circuits, those underlying sex-typical social behaviours weave through complex brain regions that control a variety of diverse behaviours. For this reason, the functional dissection of neural circuits underlying sex-typical social behaviours has proved to be difficult. However, molecularly discrete neuronal subpopulations can be identified in the heterogeneous brain regions that control sex-typical social behaviours. In addition, the actions of oestrogens and androgens produce sex differences in gene expression within these brain regions, thereby highlighting the neuronal subpopulations most likely to control sexually dimorphic social behaviours. These conditions permit the implementation of innovative genetic approaches that, in mammals, are most highly advanced in the laboratory mouse. Such approaches have greatly advanced our understanding of the functional significance of sexually dimorphic neural circuits in the brain. In this review, we discuss the neural circuitry of sex-typical social behaviours in mice while highlighting the genetic technical innovations that have advanced the field.
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Affiliation(s)
- Daniel W Bayless
- Department of Anatomy, University of California San Francisco, San Francisco, CA 94158, USA
| | - Nirao M Shah
- Department of Anatomy, University of California San Francisco, San Francisco, CA 94158, USA
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22
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Pang L, Zhao X, Liu W, Deng J, Tan X, Qiu L. Anticancer Effect of Ursodeoxycholic Acid in Human Oral Squamous Carcinoma HSC-3 Cells through the Caspases. Nutrients 2015; 7:3200-18. [PMID: 25951128 PMCID: PMC4446747 DOI: 10.3390/nu7053200] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 03/07/2015] [Accepted: 04/22/2015] [Indexed: 12/16/2022] Open
Abstract
Bear bile was used as a traditional medicine or tonic in East Asia, and ursodeoxycholic acid (UDCA) is the most important compound in bear bile. Further, synthetic UDCA is also used in modern medicine and nutrition; therefore, its further functional effects warrant research, in vitro methods could be used for the fundamental research of its anticancer effects. In this study, the apoptotic effects of UDCA in human oral squamous carcinoma HSC-3 cells through the activation of caspases were observed by the experimental methods of MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide) assay, DAPI (4’,6-diamidino-2-phenylindole) staining, flow cytometry analysis, RT-PCR (reverse transcription-polymerase chain reaction) assay and Western blot assay after HSC-3 cells were treated by different concentrations of UDCA. With 0 to 400 μg/mL UDCA treatment, UDCA had strong growth inhibitory effects in HSC-3 cells, but had almost no effect in HOK normal oral cells. At concentrations of 100, 200 and 400 μg/mL, UDCA could induce apoptosis compared to untreated control HSC-3 cells. Treatment of 400 μg/mL UDCA could induce more apoptotic cancer cells than 100 and 200 μg/mL treatment; the sub-G1 DNA content of 400 μg/mL UDCA treated cancer cells was 41.3% versus 10.6% (100 μg/mL) and 22.4% (200 μg/mL). After different concentrations of UDCA treatment, the mRNA and protein expressions of caspase-3, caspase-8, caspase-9, Bax, Fas/FasL (Fas ligand), TRAIL (TNF-related apoptosis-inducing ligand), DR4 (death receptor 4) and DR5 (death receptor 5) were increased in HSC-3 cells, and mRNA and protein expressions of Bcl-2 (B-cell lymphoma 2), Bcl-xL (B-cell lymphoma-extra large), XIAP (X-linked inhibitor of apoptosis protein), cIAP-1 (cellular inhibitor of apoptosis 1), cIAP-2 (cellular inhibitor of apoptosis 2) and survival were decreased. Meanwhile, at the highest concentration of 400 μg/mL, caspase-3, caspase-8, caspase-9, Bax, Fas/FasL, TRAIL, DR4, DR5, and IκB-α expression levels were the highest, and Bcl-2, Bcl-xL, XIAP, cIAP-1, cIAP-2, survival, and NF-κB expression levels were the lowest. These results proved that UDCA could induce apoptosis of HSC-3 cancer cells through caspase activation, and the higher concentration of UDCA had stronger effects in vitro. UDCA might be a good nutrient for oral cancer prevention.
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Affiliation(s)
- Liang Pang
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China.
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing 401147, China.
| | - Xin Zhao
- Department of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China.
- Institute of Functional Ecological Food, Chongqing University of Education, Chongqing 400067, China.
| | - Weiwei Liu
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, China.
| | - Jiang Deng
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China.
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing 401147, China.
| | - Xiaotong Tan
- Department of Food Science and Nutrition, Pusan National University, Busan 609-735, Korea.
| | - Lihua Qiu
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China.
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
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23
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Unger EK, Burke KJ, Yang CF, Bender KJ, Fuller PM, Shah NM. Medial amygdalar aromatase neurons regulate aggression in both sexes. Cell Rep 2015; 10:453-62. [PMID: 25620703 DOI: 10.1016/j.celrep.2014.12.040] [Citation(s) in RCA: 174] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 11/13/2014] [Accepted: 12/17/2014] [Indexed: 01/24/2023] Open
Abstract
Aromatase-expressing neuroendocrine neurons in the vertebrate male brain synthesize estradiol from circulating testosterone. This locally produced estradiol controls neural circuits underlying courtship vocalization, mating, aggression, and territory marking in male mice. How aromatase-expressing neuronal populations control these diverse estrogen-dependent male behaviors is poorly understood, and the function, if any, of aromatase-expressing neurons in females is unclear. Using targeted genetic approaches, we show that aromatase-expressing neurons within the male posterodorsal medial amygdala (MeApd) regulate components of aggression, but not other estrogen-dependent male-typical behaviors. Remarkably, aromatase-expressing MeApd neurons in females are specifically required for components of maternal aggression, which we show is distinct from intermale aggression in pattern and execution. Thus, aromatase-expressing MeApd neurons control distinct forms of aggression in the two sexes. Moreover, our findings indicate that complex social behaviors are separable in a modular manner at the level of genetically identified neuronal populations.
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Affiliation(s)
- Elizabeth K Unger
- Program in Biomedical Sciences, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Kenneth J Burke
- Program in Neuroscience, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Cindy F Yang
- Program in Neuroscience, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Kevin J Bender
- Department of Neurology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Patrick M Fuller
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Nirao M Shah
- Department of Anatomy, University of California, San Francisco, San Francisco, CA 94158, USA.
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