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Xu E, Cao G, Yang Z, Zhang Y, Si Y, Singh K, Jude J, An SS, Koziol-White CJ, Panettieri RA, Yang Q. Adventitial stromal cells and myofibroblasts recruit pro- and anti-inflammatory immune cells in allergic airway inflammation. Allergy 2023; 78:2994-2997. [PMID: 37171245 PMCID: PMC10640656 DOI: 10.1111/all.15766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/03/2023] [Accepted: 05/09/2023] [Indexed: 05/13/2023]
Affiliation(s)
- En Xu
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Gaoyuan Cao
- Rutgers Institute for Translational Medicine and Science, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Zhi Yang
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Yuanyue Zhang
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Youwen Si
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Kunal Singh
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Joseph Jude
- Rutgers Institute for Translational Medicine and Science, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Steven S An
- Rutgers Institute for Translational Medicine and Science, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Cynthia J Koziol-White
- Rutgers Institute for Translational Medicine and Science, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Reynold A Panettieri
- Rutgers Institute for Translational Medicine and Science, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
| | - Qi Yang
- Child Health Institute of New Jersey, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
- Rutgers Institute for Translational Medicine and Science, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
- Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA
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2
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Nayak AP, Javed E, Villalba DR, Wang Y, Morelli HP, Shah SD, Kim N, Ostrom RS, Panettieri RA, An SS, Tang DD, Penn RB. Prorelaxant E-type Prostanoid Receptors Functionally Partition to Different Procontractile Receptors in Airway Smooth Muscle. Am J Respir Cell Mol Biol 2023; 69:584-591. [PMID: 37523713 PMCID: PMC10633839 DOI: 10.1165/rcmb.2022-0445oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 07/31/2023] [Indexed: 08/02/2023] Open
Abstract
Prostaglandin E2 imparts diverse physiological effects on multiple airway cells through its actions on four distinct E-type prostanoid (EP) receptor subtypes (EP1-EP4). Gs-coupled EP2 and EP4 receptors are expressed on airway smooth muscle (ASM), yet their capacity to regulate the ASM contractile state remains subject to debate. We used EP2 and EP4 subtype-specific agonists (ONO-259 and ONO-329, respectively) in cell- and tissue-based models of human ASM contraction-magnetic twisting cytometry (MTC), and precision-cut lung slices (PCLSs), respectively-to study the EP2 and EP4 regulation of ASM contraction and signaling under conditions of histamine or methacholine (MCh) stimulation. ONO-329 was superior (<0.05) to ONO-259 in relaxing MCh-contracted PCLSs (log half maximal effective concentration [logEC50]: 4.9 × 10-7 vs. 2.2 × 10-6; maximal bronchodilation ± SE, 35 ± 2% vs. 15 ± 2%). However, ONO-259 and ONO-329 were similarly efficacious in relaxing histamine-contracted PCLSs. Similar differential effects were observed in MTC studies. Signaling analyses revealed only modest differences in ONO-329- and ONO-259-induced phosphorylation of the protein kinase A substrates VASP and HSP20, with concomitant stimulation with MCh or histamine. Conversely, ONO-259 failed to inhibit MCh-induced phosphorylation of the regulatory myosin light chain (pMLC20) and the F-actin/G-actin ratio (F/G-actin ratio) while effectively inhibiting their induction by histamine. ONO-329 was effective in reversing induced pMLC20 and the F/G-actin ratio with both MCh and histamine. Thus, the contractile-agonist-dependent differential effects are not explained by changes in the global levels of phosphorylated protein kinase A substrates but are reflected in the regulation of pMLC20 (cross-bridge cycling) and F/G-actin ratio (actin cytoskeleton integrity, force transmission), implicating a role for compartmentalized signaling involving muscarinic, histamine, and EP receptor subtypes.
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Affiliation(s)
- Ajay P. Nayak
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Elham Javed
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Dominic R. Villalba
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Yinna Wang
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Henry P. Morelli
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Sushrut D. Shah
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Nicholas Kim
- Rutgers Institute for Translational Medicine and Science, Rutgers University, New Brunswick, New Jersey
| | - Rennolds S. Ostrom
- Department of Biomedical and Pharmaceutical Sciences, School of Pharmacy, Chapman University, Irvine, California; and
| | - Reynold A. Panettieri
- Rutgers Institute for Translational Medicine and Science, Rutgers University, New Brunswick, New Jersey
| | - Steven S. An
- Rutgers Institute for Translational Medicine and Science, Rutgers University, New Brunswick, New Jersey
| | - Dale D. Tang
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Raymond B. Penn
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
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3
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Ippolito M, De Pascali F, Hopfinger N, Komolov KE, Laurinavichyute D, Reddy PAN, Sakkal LA, Rajkowski KZ, Nayak AP, Lee J, Lee J, Cao G, Donover PS, Reichman M, An SS, Salvino JM, Penn RB, Armen RS, Scott CP, Benovic JL. Identification of a β-arrestin-biased negative allosteric modulator for the β 2-adrenergic receptor. Proc Natl Acad Sci U S A 2023; 120:e2302668120. [PMID: 37490535 PMCID: PMC10401000 DOI: 10.1073/pnas.2302668120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/26/2023] [Indexed: 07/27/2023] Open
Abstract
Catecholamine-stimulated β2-adrenergic receptor (β2AR) signaling via the canonical Gs-adenylyl cyclase-cAMP-PKA pathway regulates numerous physiological functions, including the therapeutic effects of exogenous β-agonists in the treatment of airway disease. β2AR signaling is tightly regulated by GRKs and β-arrestins, which together promote β2AR desensitization and internalization as well as downstream signaling, often antithetical to the canonical pathway. Thus, the ability to bias β2AR signaling toward the Gs pathway while avoiding β-arrestin-mediated effects may provide a strategy to improve the functional consequences of β2AR activation. Since attempts to develop Gs-biased agonists and allosteric modulators for the β2AR have been largely unsuccessful, here we screened small molecule libraries for allosteric modulators that selectively inhibit β-arrestin recruitment to the receptor. This screen identified several compounds that met this profile, and, of these, a difluorophenyl quinazoline (DFPQ) derivative was found to be a selective negative allosteric modulator of β-arrestin recruitment to the β2AR while having no effect on β2AR coupling to Gs. DFPQ effectively inhibits agonist-promoted phosphorylation and internalization of the β2AR and protects against the functional desensitization of β-agonist mediated regulation in cell and tissue models. The effects of DFPQ were also specific to the β2AR with minimal effects on the β1AR. Modeling, mutagenesis, and medicinal chemistry studies support DFPQ derivatives binding to an intracellular membrane-facing region of the β2AR, including residues within transmembrane domains 3 and 4 and intracellular loop 2. DFPQ thus represents a class of biased allosteric modulators that targets an allosteric site of the β2AR.
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Affiliation(s)
- Michael Ippolito
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA19107
| | - Francesco De Pascali
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA19107
| | - Nathan Hopfinger
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA19107
| | - Konstantin E. Komolov
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA19107
| | - Daniela Laurinavichyute
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA19107
| | | | - Leon A. Sakkal
- Department of Pharmaceutical Sciences, College of Pharmacy, Thomas Jefferson University, Philadelphia, PA19107
| | - Kyle Z. Rajkowski
- Department of Pharmaceutical Sciences, College of Pharmacy, Thomas Jefferson University, Philadelphia, PA19107
| | - Ajay P. Nayak
- Center for Translational Medicine, Department of Medicine, and Jane and Leonard Korman Respiratory Institute, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA19107
| | - Justin Lee
- Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ08901
| | - Jordan Lee
- Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ08901
| | - Gaoyuan Cao
- Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ08901
| | | | | | - Steven S. An
- Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ08901
- Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, NJ08854
| | | | - Raymond B. Penn
- Center for Translational Medicine, Department of Medicine, and Jane and Leonard Korman Respiratory Institute, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA19107
| | - Roger S. Armen
- Department of Pharmaceutical Sciences, College of Pharmacy, Thomas Jefferson University, Philadelphia, PA19107
| | - Charles P. Scott
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA19107
| | - Jeffrey L. Benovic
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA19107
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Mallin MM, Kim N, Choudhury MI, Lee SJ, An SS, Sun SX, Konstantopoulos K, Pienta KJ, Amend SR. Cells in the polyaneuploid cancer cell (PACC) state have increased metastatic potential. Clin Exp Metastasis 2023:10.1007/s10585-023-10216-8. [PMID: 37326720 DOI: 10.1007/s10585-023-10216-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 06/02/2023] [Indexed: 06/17/2023]
Abstract
Although metastasis is the leading cause of cancer deaths, it is quite rare at the cellular level. Only a rare subset of cancer cells (~ 1 in 1.5 billion) can complete the entire metastatic cascade: invasion, intravasation, survival in the circulation, extravasation, and colonization (i.e. are metastasis competent). We propose that cells engaging a Polyaneuploid Cancer Cell (PACC) phenotype are metastasis competent. Cells in the PACC state are enlarged, endocycling (i.e. non-dividing) cells with increased genomic content that form in response to stress. Single-cell tracking using time lapse microscopy reveals that PACC state cells have increased motility. Additionally, cells in the PACC state exhibit increased capacity for environment-sensing and directional migration in chemotactic environments, predicting successful invasion. Magnetic Twisting Cytometry and Atomic Force Microscopy reveal that cells in the PACC state display hyper-elastic properties like increased peripheral deformability and maintained peri-nuclear cortical integrity that predict successful intravasation and extravasation. Furthermore, four orthogonal methods reveal that cells in the PACC state have increased expression of vimentin, a hyper-elastic biomolecule known to modulate biomechanical properties and induce mesenchymal-like motility. Taken together, these data indicate that cells in the PACC state have increased metastatic potential and are worthy of further in vivo analysis.
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Affiliation(s)
- Mikaela M Mallin
- Cellular and Molecular Medicine Graduate Training Program, Johns Hopkins School of Medicine, Baltimore, MD, USA.
- Cancer Ecology Center, James Buchanan Brady Urological Institute, Johns Hopkins Medical Institute, Baltimore, MD, USA.
| | - Nicholas Kim
- Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ, USA
| | | | - Se Jong Lee
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Steven S An
- Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ, USA
| | - Sean X Sun
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | | | - Kenneth J Pienta
- Cellular and Molecular Medicine Graduate Training Program, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Cancer Ecology Center, James Buchanan Brady Urological Institute, Johns Hopkins Medical Institute, Baltimore, MD, USA
| | - Sarah R Amend
- Cellular and Molecular Medicine Graduate Training Program, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Cancer Ecology Center, James Buchanan Brady Urological Institute, Johns Hopkins Medical Institute, Baltimore, MD, USA
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Gebski EB, Parikh V, Lam H, Kim N, Bochkov Y, Cao G, Panettieri RA, Kurten R, Gern J, An SS, Koziol-White CJ. Rhinovirus C15 Attenuates Relaxation and cAMP Production in Human Airways and Smooth Muscle. Am J Respir Cell Mol Biol 2023. [PMID: 37098126 PMCID: PMC10399146 DOI: 10.1165/rcmb.2021-0526oc] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023] Open
Abstract
Rhinoviruses (RV) evoke up to 85% of acute asthma exacerbations in children, 50% in adults, and can induce airway hyperresponsiveness and decrease efficacy of current therapeutics to provide symptom relief. Utilizing human precision cut lung slices (hPCLS), primary human air-liquid interface differentiated airway epithelial cells (HAEC), and human airway smooth muscle (HASM) as pre-clinical experimental models, we demonstrated that RV-C15 attenuates agonist-induced bronchodilation. Specifically, airway relaxation to formoterol and cholera toxin, but not forskolin, was attenuated following hPCLS exposure to RV-C15. In isolated HASM cells, exposure to conditioned media from RV-exposed HAEC decreased cellular relaxation to isoproterenol and PGE2, but not forskolin. Additionally, cAMP generation elicited by formoterol and isoproterenol, but not forskolin, was attenuated following HASM exposure to RV-C15-conditioned HAEC media. HASM exposure to RV-C15-conditioned HAEC media modulated expression of components of relaxation pathways, specifically GNAI1 and GRK2. Strikingly, similar to exposure to intact RV-C15, hPCLS exposed to UV inactivated RV-C15 showed markedly attenuated airways relaxation in response to formoterol, suggesting that the mechanism(s) of RV-C15 mediated loss of bronchodilation is independent of virus replication pathways. Further studies are warranted to identify soluble factor(s) regulating the epithelial-driven smooth muscle loss of β2-adrenergic receptor (β2AR) function.
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Affiliation(s)
- Eric B Gebski
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey, United States
| | - Vishal Parikh
- Rutgers The State University of New Jersey, 242612, Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey, United States
| | - Hong Lam
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey, United States
| | - Nicholas Kim
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey, United States
| | - Yury Bochkov
- University of Wisconsin-Madison, Madison, Wisconsin, United States
| | - Gaoyuan Cao
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, New Brunswick, New Jersey, United States
| | - Reynold A Panettieri
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey, United States
| | - Richard Kurten
- UAMS, Physiology & Biophysics, Little Rock, Arkansas, United States
| | - James Gern
- University of Wisconsin-Madison, 5228, Pediatrics, Madison, Wisconsin, United States
| | - Steven S An
- Rutgers University, 242612, Pharmacology, New Brunswick, New Jersey, United States
| | - Cynthia J Koziol-White
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey, United States;
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Woo JAA, Castaño M, Kee TR, Lee J, Koziol-White CJ, An SS, Kim D, Kang DE, Liggett SB. A Par3/LIM Kinase/Cofilin Pathway Mediates Human Airway Smooth Muscle Relaxation by TAS2R14. Am J Respir Cell Mol Biol 2023; 68:417-429. [PMID: 36662576 PMCID: PMC10112429 DOI: 10.1165/rcmb.2022-0303oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 01/20/2023] [Indexed: 01/21/2023] Open
Abstract
TAS2Rs (bitter taste receptors) are GPCRs (G protein-coupled receptors) expressed on human airway smooth muscle (HASM) cells; when activated by receptor agonists they evoke marked airway relaxation. In both taste and HASM cells, TAS2Rs activate a canonical Gβγ-mediated stimulation of Ca2+ release from intracellular stores by activation of PLCβ (phospholipase Cβ). Alone, this [Ca2+]i signaling does not readily account for relaxation, particularly since bronchoconstrictive agonists acting at Gq-coupled receptors also increase [Ca2+]i. We established that TAS2R14 activation in HASM promotes relaxation through F-actin (filamentous actin) severing. This destabilization of actin was from agonist-promoted activation (dephosphorylation) of cofilin, which was pertussis toxin sensitive. Cofilin dephosphorylation was due to TAS2R-mediated deactivation of LIM domain kinase. The link between early receptor action and the distal cofilin dephosphorylation was found to be the polarity protein partitioning defective 3 (Par3), a known binding partner with PLCβ that inhibits LIM kinase. The physiologic relevance of this pathway was assessed using knock-downs of cofilin and Par3 in HASM cells and in human precision-cut lung slices. Relaxation by TAS2R14 agonists was ablated with knock-down of either protein as assessed by magnetic twisting cytometry in isolated cells or intact airways in the slices. Blocking [Ca2+]i release by TAS2R14 inhibited agonist-promoted cofilin dephosphorylation, confirming a role for [Ca2+]i in actin-modifying pathways. These results further elucidate the mechanistic basis of TAS2R-mediated HASM relaxation and point toward nodal points that may act as asthma or chronic obstructive pulmonary disease response modifiers or additional targets for novel bronchodilators.
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Affiliation(s)
- Jung-A A. Woo
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, Ohio
| | | | - Teresa R. Kee
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, Ohio
- Department of Molecular Medicine
| | - Jordan Lee
- Joint Graduate Program in Toxicology, Department of Pharmacology and Toxicology, Rutgers University Ernest Mario School of Pharmacy, Piscataway, New Jersey
| | - Cynthia J. Koziol-White
- Department of Pharmacology, Robert Wood Johnson Medical School, Piscataway, New Jersey; and
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey
| | - Steven S. An
- Department of Pharmacology, Robert Wood Johnson Medical School, Piscataway, New Jersey; and
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey
| | - Donghwa Kim
- Center for Personalized Medicine and Genomics
| | - David E. Kang
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, Ohio
| | - Stephen B. Liggett
- Department of Molecular Pharmacology and Physiology
- Center for Personalized Medicine and Genomics
- Department of Medicine, and
- Department of Medical Engineering, University of South Florida Morsani College of Medicine, Tampa, Florida
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Ahn K, Penn RB, Rattan S, Panettieri RA, Voight BF, An SS. Mendelian Randomization Analysis Reveals a Complex Genetic Interplay among Atopic Dermatitis, Asthma, and Gastroesophageal Reflux Disease. Am J Respir Crit Care Med 2023; 207:130-137. [PMID: 36214830 PMCID: PMC9893317 DOI: 10.1164/rccm.202205-0951oc] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 10/07/2022] [Indexed: 02/02/2023] Open
Abstract
Rationale: Gastroesophageal reflux disease (GERD) is commonly associated with atopic disorders, but cause-effect relationships remain unclear. Objectives: We applied Mendelian randomization analysis to explore whether GERD is causally related to atopic disorders of the lung (asthma) and/or skin (atopic dermatitis [AD]). Methods: We conducted two-sample bidirectional Mendelian randomization to infer the magnitude and direction of causality between asthma and GERD, using summary statistics from the largest genome-wide association studies conducted on asthma (Ncases = 56,167) and GERD (Ncases = 71,522). In addition, we generated instrumental variables for AD from the latest population-level genome-wide association study meta-analysis (Ncases = 22,474) and assessed their fidelity and confidence of predicting the likely causal pathway(s) leading to asthma and/or GERD. Measurements and Main Results: Applying three different methods, each method revealed similar magnitude of causal estimates that were directionally consistent across the sensitivity analyses. Using an inverse variance-weighted method, the largest effect size was detected for asthma predisposition to AD (odds ratio [OR], 1.46; 95% confidence interval [CI], 1.34-1.59), followed by AD to asthma (OR, 1.34; 95% CI, 1.24-1.45). A significant association was detected for genetically determined asthma on risk of GERD (OR, 1.06; 95% CI, 1.03-1.09) but not genetically determined AD on GERD. In contrast, GERD equally increased risks of asthma (OR, 1.21; 95% CI, 1.09-1.35) and AD (OR, 1.21; 95% CI, 1.07-1.37). Conclusions: This study uncovers previously unrecognized causal pathways that have clinical implications in European-ancestry populations: 1) asthma is a causal risk for AD, and 2) the predisposition to AD, including asthma, can arise from specific pathogenic mechanisms manifested by GERD.
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Affiliation(s)
- Kwangmi Ahn
- Neurobehavioral Clinical Research Section, Social and Behavioral Research Branch, National Human Genome Research Institute, NIH, Bethesda, Maryland
| | | | - Satish Rattan
- Division of Gastroenterology & Hepatology, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Respiratory Institute, Thomas Jefferson University, Philadelphia, Pennsylvania
| | | | - Benjamin F. Voight
- Department of Systems Pharmacology and Translational Therapeutics and
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; and
| | - Steven S. An
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey
- Department of Pharmacology, Rutgers–Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, New Jersey
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Mallin MM, Kim N, Choudhury MI, Lee S, An SS, Sun SX, Konstantopoulos K, Amend SR, Pienta KJ. Abstract A017: Polyaneuploid Cancer Cells (PACCs) as metastasis-competent cells. Cancer Res 2023. [DOI: 10.1158/1538-7445.metastasis22-a017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Abstract
Metastasis is responsible for 90% of cancer deaths, yet on a cellular level, successful metastasis is rare. Barriers to metastasis exist at every step of the metastatic cascade (invasion, intravasation, survival in the circulation, extravasation, and colonization.) Modeling predicts that only one of every 1.5 billion circulating tumor cells results in clinically-detectable metastasis. Identification of the rare subset of metastasis-competent cells is the most crucial goal of cancer research. Polyanuploid Cancer Cells (PACCs) are physically enlarged, treatment-resistant cells with increased genomic content that form in response to stress. After stress-induction, PACCs exist in a non-proliferative state for many weeks before undergoing eventual depolyploidization to produce progeny of “typical” cancer cell size, morphology, and nuclear content. PACCs can be identified in both primary and metastatic patient tumor tissues. As such, we propose Polyaneuploid Cancer Cells (PACCs) are metastasis-competent cells. Single-cell tracking reveals that PACCs are more motile than nonPACCs. Additionally, we observe that PACCs exhibit increased directional migration in 2D chemotactic environments. Optical-tracking of spontaneous bead motion reveals that PACCs demonstrate increased cytoskeletal rearrangement, an observation that aligns with increased environment-sensing and directional motility. In total, this predicts successful invasion. Analyses of cellular deformability using Magnetic Twisting Cytometry and Atomic Force Microscopy jointly reveal that cells in the PACC state display hyper-elastic properties. Among these include increased peripheral deformability and maintained peri-nuclear cortical integrity, both of which predict successful intravasation and extravasation. Functional deformability of PACCs navigating through narrow channels in a chemotactic environment was confirmed using a custom microfluids device. RTqPCR, NanoString mRNA quantification, Western blot, and immunofluorescent imaging reveal that PACCs highly overexpress Vimentin, a cytoskeletal component known to confer hyper-elasticity. Notably, there is no correlation between Vimentin content and motility dynamics in PACCs, indicating that the role of Vimentin in PACCs may primarily drive increased hyper-elasticity rather than increased motility. Anoikis-resistance assays and detection of PACCs in the blood of a patient with metastatic prostate cancer using a selection-free circulating tumor cell detection platform reveal that PACCs are capable of surviving in the circulation. Our work to date reports that PACCs demonstrate increased motility, environment-sensing, hyper-elasticity, and anoikis-resistance. Taken together with the knowledge that PACCs exist in a treatment-resistant state and are capable of eventual depolyploidization (as a potential route to successful colony formation), this data suggests PACCs are a candidate rare metastasis-competent cell type worthy of further analysis.
Citation Format: Mikaela M. Mallin, Nicholas Kim, Mohammad Ikbal Choudhury, SeJong Lee, Steven S. An, Sean X. Sun, Konstantinos Konstantopoulos, Sarah R. Amend, Kenneth J. Pienta. Polyaneuploid Cancer Cells (PACCs) as metastasis-competent cells [abstract]. In: Proceedings of the AACR Special Conference: Cancer Metastasis; 2022 Nov 14-17; Portland, OR. Philadelphia (PA): AACR; Cancer Res 2022;83(2 Suppl_2):Abstract nr A017.
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Affiliation(s)
| | | | | | - SeJong Lee
- 1Johns Hopkins University, Baltimore, MD,
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Pascali FD, Ippolito M, Wolfe E, Komolov KE, Hopfinger N, Lemenze D, Kim N, Armen RS, An SS, Scott CP, Benovic JL. LBMON186 Beta-agonist Profiling Reveals Novel Biased Signaling Phenotypes For The Beta 2-adrenergic Receptor With Implications In The Treatment Of Asthma. J Endocr Soc 2022. [PMCID: PMC9625524 DOI: 10.1210/jendso/bvac150.1217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Asthma involves chronic airway inflammation and airway smooth muscle (ASM) cell contraction. Treatment include agonists of the beta 2-AR, a GPCR that induces the Gs/cAMP pathway leading to ASM relaxation. These agonists can also promote severe side effects which have been correlated with beta-arrestins (barr) activation. Therefore, biased ligands selective for the Gs/cAMP pathway over the barr-induced side effects should be beneficial. To test this, we have used high-throughput screening to identify Gs-biased agonists. The initial lead candidates were further analyzed for their ability to modulate Gs and Gi interaction, cAMP production, and barr interaction. We identified three compounds which showed minimal barr recruitment as well as decreased barr-mediated outputs including receptor internalization and ERK activation. They also showed reduced GRK-mediated phosphorylation of the receptor as well as decreased agonist-promoted receptor desensitization in human ASM cells. These Gs-biased agonists may contribute to develop more effective drugs for asthma and may help to determine the structure determinants of receptor mediated biased signaling. Presentation: Monday, June 13, 2022 12:30 p.m. - 2:30 p.m.
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Affiliation(s)
- Francesco D Pascali
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Michael Ippolito
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Emily Wolfe
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Konstantin E Komolov
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Nathan Hopfinger
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Douglas Lemenze
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Nicholas Kim
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Roger S Armen
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Steven S An
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Charles P Scott
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
| | - Jeffrey L Benovic
- Thomas Jefferson University, Philadelphia, PA, USA,Rutgers, the State University of New Jersey, New Brunswick, NJ, USA
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10
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De Pascali F, Ippolito M, Wolfe E, Komolov KE, Hopfinger N, Lemenze D, Kim N, Armen RS, An SS, Scott CP, Benovic JL. β 2 -Adrenoceptor agonist profiling reveals biased signalling phenotypes for the β 2 -adrenoceptor with possible implications for the treatment of asthma. Br J Pharmacol 2022; 179:4692-4708. [PMID: 35732075 PMCID: PMC9474705 DOI: 10.1111/bph.15900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 04/08/2022] [Accepted: 04/29/2022] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND AND PURPOSE β-Adrenoceptor agonists relieve airflow obstruction by activating β2 -adrenoceptors, which are G protein-coupled receptors (GPCRs) expressed on human airway smooth muscle (HASM) cells. The currently available β-adrenoceptor agonists are balanced agonists, however, and signal through both the stimulatory G protein (Gs )- and β-arrestin-mediated pathways. While Gs signalling is beneficial and promotes HASM relaxation, β-arrestin activation is associated with reduced Gs efficacy. In this context, biased ligands that selectively promote β2 -adrenoceptor coupling to Gs signalling represent a promising strategy to treat asthma. Here, we examined several β-adrenoceptor agonists to identify Gs -biased ligands devoid of β-arrestin-mediated effects. EXPERIMENTAL APPROACH Gs -biased ligands for the β2 -adrenoceptor were identified by high-throughput screening and then evaluated for Gs interaction, Gi interaction, cAMP production, β-arrestin interaction, GPCR kinase (GRK) phosphorylation of the receptor, receptor trafficking, ERK activation, and functional desensitization of the β2 -adrenoceptor. KEY RESULTS We identified ractopamine, dobutamine, and higenamine as Gs -biased agonists that activate the Gs /cAMP pathway upon β2 -adrenoceptor stimulation while showing minimal Gi or β-arrestin interaction. Furthermore, these compounds did not induce any receptor trafficking and had reduced GRK5-mediated phosphorylation of the β2 -adrenoceptor. Finally, we observed minimal physiological desensitization of the β2 -adrenoceptor in primary HASM cells upon treatment with biased agonists. CONCLUSION AND IMPLICATIONS Our work demonstrates that Gs -biased signalling through the β2 -adrenoceptor may prove to be an effective strategy to promote HASM relaxation in the treatment of asthma. Such biased compounds may also be useful in identifying the molecular mechanisms that determine biased signalling and in design of safer drugs.
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Affiliation(s)
- Francesco De Pascali
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
- These authors contributed equally
| | - Michael Ippolito
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
- These authors contributed equally
| | - Emily Wolfe
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey and Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, New Jersey, USA
| | - Konstantin E. Komolov
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Nathan Hopfinger
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Douglas Lemenze
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey and Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, New Jersey, USA
| | - Nicholas Kim
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey and Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, New Jersey, USA
| | - Roger S. Armen
- Department of Pharmaceutical Sciences, College of Pharmacy, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Steven S. An
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey and Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, New Jersey, USA
| | - Charles P. Scott
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jeffrey L. Benovic
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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11
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Nayak AP, An SS. Anxiolytics for Bronchodilation: Refinements to GABA A Agonists for Asthma Relief. Am J Respir Cell Mol Biol 2022; 67:419-420. [PMID: 35901197 PMCID: PMC9564927 DOI: 10.1165/rcmb.2022-0287ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Ajay P. Nayak
- Center for Translational Medicine,Department of MedicineThomas Jefferson UniversityPhiladelphia, Pennsylvania
| | - Steven S. An
- Rutgers Institute for Translational Medicine and ScienceNew Brunswick, New Jersey,Rutgers-Robert Wood Johnson Medical SchoolThe State University of New JerseyPiscataway, New Jersey
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12
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Deeney BT, Cao G, Orfanos S, Lee J, Kan M, Himes BE, Parikh V, Koziol-White CJ, An SS, Panettieri RA. Epinephrine evokes shortening of human airway smooth muscle cells following β 2 adrenergic receptor desensitization. Am J Physiol Lung Cell Mol Physiol 2022; 323:L142-L151. [PMID: 35787178 PMCID: PMC9359643 DOI: 10.1152/ajplung.00444.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 06/14/2022] [Accepted: 06/28/2022] [Indexed: 11/22/2022] Open
Abstract
Epinephrine (EPI), an endogenous catecholamine involved in the body's fight-or-flight responses to stress, activates α1-adrenergic receptors (α1ARs) expressed on various organs to evoke a wide range of physiological functions, including vasoconstriction. In the smooth muscle of human bronchi, however, the functional role of EPI on α1ARs remains controversial. Classically, evidence suggests that EPI promotes bronchodilation by stimulating β2-adrenergic receptors (β2ARs). Conventionally, the selective β2AR agonism of EPI was thought to be, in part, due to a predominance of β2ARs and/or a sparse, or lack of α1AR activity in human airway smooth muscle (HASM) cells. Surprisingly, we find that HASM cells express a high abundance of ADRA1B (the α1AR subtype B) and identify a spontaneous "switch-like" activation of α1ARs that evokes intracellular calcium, myosin light chain phosphorylation, and HASM cell shortening. The switch-like responses, and related EPI-induced biochemical and mechanical signals, emerged upon pharmacological inhibition of β2ARs and/or under experimental conditions that induce β2AR tachyphylaxis. EPI-induced procontractile effects were abrogated by an α1AR antagonist, doxazosin mesylate (DM). These data collectively uncover a previously unrecognized feed-forward mechanism driving bronchospasm via two distinct classes of G protein-coupled receptors (GPCRs) and provide a basis for reexamining α1AR inhibition for the management of stress/exercise-induced asthma and/or β2-agonist insensitivity in patients with difficult-to-control, disease subtypes.
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Affiliation(s)
- Brian T Deeney
- Rutgers Institute for Translational Medicine and Science, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Gaoyuan Cao
- Rutgers Institute for Translational Medicine and Science, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Sarah Orfanos
- Rutgers Institute for Translational Medicine and Science, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Jordan Lee
- The Joint Graduate Program in Toxicology, Department of Pharmacology and Toxicology, Rutgers-Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Mengyuan Kan
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Blanca E Himes
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Vishal Parikh
- Rutgers Institute for Translational Medicine and Science, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Cynthia J Koziol-White
- Rutgers Institute for Translational Medicine and Science, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Steven S An
- Rutgers Institute for Translational Medicine and Science, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
- The Joint Graduate Program in Toxicology, Department of Pharmacology and Toxicology, Rutgers-Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey
- Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, New Jersey
| | - Reynold A Panettieri
- Rutgers Institute for Translational Medicine and Science, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
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13
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De Pascali F, Ippolito M, Wolfe E, Komolov KE, Hopfinger N, Lemenze D, Armen RS, An SS, Scott CP, Benovic JL. Beta‐agonist Profiling Reveals Novel Biased Signaling Phenotypes for the Beta 2‐adrenergic Receptor with Implications in the Treatment of Asthma. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r3832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Francesco De Pascali
- Department of Biochemistry and Molecular BiologySidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPA
| | - Michael Ippolito
- Department of Biochemistry and Molecular BiologySidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPA
| | - Emily Wolfe
- Rutgers Institute for Translational MedicineThe State University of New JerseyNew BrunswickNJ
- Department of PharmacologyRutgers‐Robert Wood Johnson Medical SchoolThe State University of New JerseyPiscatawayNJ
| | - Konstantine E. Komolov
- Department of Biochemistry and Molecular BiologySidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPA
| | - Nathan Hopfinger
- Department of Biochemistry and Molecular BiologySidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPA
| | - Douglas Lemenze
- Rutgers Institute for Translational MedicineThe State University of New JerseyNew BrunswickNJ
- Department of PharmacologyRutgers‐Robert Wood Johnson Medical SchoolThe State University of New JerseyPiscatawayNJ
| | - Roger S. Armen
- Department of Pharmaceutical SciencesCollege of PharmacyThomas Jefferson UniversityPhiladelphiaPA
| | - Steven S. An
- Rutgers Institute for Translational MedicineThe State University of New JerseyNew BrunswickNJ
- Department of PharmacologyRutgers‐Robert Wood Johnson Medical SchoolThe State University of New JerseyPiscatawayNJ
| | - Charles P. Scott
- Department of Biochemistry and Molecular BiologySidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPA
| | - Jeffrey L. Benovic
- Department of Biochemistry and Molecular BiologySidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPA
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14
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Cao G, Lam H, Jude JA, Karmacharya N, Kan M, Jester W, Koziol-White C, Himes BE, Chupp GL, An SS, Panettieri RA. Inhibition of ABCC1 Decreases cAMP Egress and Promotes Human Airway Smooth Muscle Cell Relaxation. Am J Respir Cell Mol Biol 2021; 66:96-106. [PMID: 34648729 DOI: 10.1165/rcmb.2021-0345oc] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
In most living cells, the second messenger roles for 3',5'-cyclic adenosine monophosphate (cAMP) are short-lived, confined to the intracellular space, and tightly controlled by the binary switch-like actions of the stimulatory G protein (Gαs)-activated adenylyl cyclase (cAMP production) and cAMP-specific phosphodiesterase (cAMP breakdown). Using human airway smooth muscle (HASM) cells in culture as a model, here we report that activation of the cell surface β2-adrenoceptor (β2AR), a Gs-coupled G protein-coupled receptor (GPCR), evokes cAMP egress to the extracellular space. Increased extracellular cAMP levels ([cAMP]e) are long-lived in culture and induced by receptor-dependent and receptor-independent mechanisms in such a way as to define a universal response class of increased intracellular cAMP levels ([cAMP]i). We find that HASM cells express multiple ATP-binding cassette (ABC) membrane transporters, with ABCC1 being the most highly enriched transcript mapped to multidrug resistance associated proteins (MRPs). We show that pharmacological inhibition or downregulation of ABCC1 with small interfering RNA markedly reduces β2AR-evoked cAMP release from HASM cells. Further, inhibition of ABCC1 activity or expression decreases basal tone and increases β-agonist-induced HASM cellular relaxation. These findings identify a previously unrecognized role for ABCC1 in the homeostatic regulation of [cAMP]i in HASM that may be conserved traits of the Gs-coupled family of GPCRs. Hence, the general features of this activation mechanism may uncover new disease-modifying targets in the treatment of airflow obstruction in asthma. Surprisingly, we find that serum cAMP levels are elevated in a small cohort of patients with asthma as compared with controls that warrants further investigation.
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Affiliation(s)
- Gaoyuan Cao
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, New Brunswick, New Jersey, United States
| | - Hong Lam
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey, United States
| | - Joseph A Jude
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey, United States
| | - Nikhil Karmacharya
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey, United States
| | - Mengyuan Kan
- University of Pennsylvania, 6572, Department of Biostatistics Epidemiology and Informatics, Philadelphia, Pennsylvania, United States
| | - William Jester
- Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey, United States
| | - Cynthia Koziol-White
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey, United States
| | - Blanca E Himes
- University of Pennsylvania Perelman School of Medicine, 14640, Philadelphia, Pennsylvania, United States
| | - Geoffrey L Chupp
- Yale School of Medicine, Pulmonary and Critical Care, New Haven, Connecticut, United States
| | - Steven S An
- Rutgers University, 242612, Pharmacology, New Brunswick, New Jersey, United States
| | - Reynold A Panettieri
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey, United States;
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15
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Tuday E, Nakano M, Akiyoshi K, Fu X, Shah AP, Yamaguchi A, Steenbergen C, Santhanam L, An SS, Berkowitz D, Baraban JM, Das S. Degradation of Premature-miR-181b by the Translin/Trax RNase Increases Vascular Smooth Muscle Cell Stiffness. Hypertension 2021; 78:831-839. [PMID: 34304585 PMCID: PMC8363557 DOI: 10.1161/hypertensionaha.120.16690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
[Figure: see text].
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Affiliation(s)
- Eric Tuday
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs: Salt Lake City, UT 84148
- Department of Internal Medicine: Division of Cardiology, University of Utah, Salt Lake City, UT 84132
| | | | - Kei Akiyoshi
- Department of Anesthesiology & Critical Care Medicine
| | - Xiuping Fu
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD 21205
| | - Aparna P. Shah
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD 21205
| | - Atsushi Yamaguchi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Charles Steenbergen
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21205
| | | | - Steven S. An
- Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, NJ, 08854
- Rutgers Institute of Translational Medicine & Science, New Brunswick, NJ 08901
| | - Dan Berkowitz
- Department of Anesthesiology and Perioperative Medicine, The University of Alabama at Birmingham, Birmingham, AL 35294
| | - Jay M. Baraban
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD 21205
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205
| | - Samarjit Das
- Department of Anesthesiology & Critical Care Medicine
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21205
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16
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Jo MH, Kim BC, Sung K, Panettieri RA, An SS, Liu J, Ha T. Molecular Nanomechanical Mapping of Histamine-Induced Smooth Muscle Cell Contraction and Shortening. ACS Nano 2021; 15:11585-11596. [PMID: 34197709 PMCID: PMC10144385 DOI: 10.1021/acsnano.1c01782] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Mechanical response to external stimuli is a conserved feature of many cell types. For example, neurotransmitters (e.g., histamine) trigger calcium signals that induce actomyosin-regulated contraction of airway smooth muscle (ASM); the resulting cell shortening causes airway narrowing, the excess of which can cause asthma. Despite intensive studies, however, it remains unclear how physical forces are propagated through focal adhesion (FA)-the major force-transmission machinery of the cell-during ASM shortening. We provide a nanomechanical platform to directly image single molecule forces during ASM cell shortening by repurposing DNA tension sensors. Surprisingly, cell shortening and FA disassembly that immediately precedes it occurred long after histamine-evoked increases in intracellular calcium levels ([Ca2+]i). Our mathematical model that fully integrates cell edge protrusion and retraction with contractile forces acting on FA predicted that (1) stabilization of FA impedes cell shortening and (2) the disruption of FAs is preceded by their strengthening through actomyosin-activated molecular tension. We confirmed these predictions via real-time imaging and molecular force measurements. Together, our work highlights a key role of FA dynamics in regulating ASM contraction induced by an allergen with potential therapeutic implications.
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Affiliation(s)
- Myung Hyun Jo
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Byoung Choul Kim
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Division of Nano-Bioengineering, Incheon National University, Incheon 22012, South Korea
| | - Keewon Sung
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Reynold A. Panettieri
- Rutgers Institute for Translational Medicine and Science, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Steven S. An
- Rutgers Institute for Translational Medicine and Science, The State University of New Jersey, New Brunswick, NJ 08901, USA
- Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Jian Liu
- Department of Cell Biology and Center for Cell Dynamics, Johns Hopkins School of Medicine, Baltimore, MD 20205, USA
| | - Taekjip Ha
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Howard Hughes Medical Institute, Baltimore, MD 21205, USA
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17
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Murphy SA, Miyamoto M, Kervadec A, Kannan S, Tampakakis E, Kambhampati S, Lin BL, Paek S, Andersen P, Lee DI, Zhu R, An SS, Kass DA, Uosaki H, Colas AR, Kwon C. PGC1/PPAR drive cardiomyocyte maturation at single cell level via YAP1 and SF3B2. Nat Commun 2021; 12:1648. [PMID: 33712605 PMCID: PMC7955035 DOI: 10.1038/s41467-021-21957-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 02/22/2021] [Indexed: 02/07/2023] Open
Abstract
Cardiomyocytes undergo significant structural and functional changes after birth, and these fundamental processes are essential for the heart to pump blood to the growing body. However, due to the challenges of isolating single postnatal/adult myocytes, how individual newborn cardiomyocytes acquire multiple aspects of the mature phenotype remains poorly understood. Here we implement large-particle sorting and analyze single myocytes from neonatal to adult hearts. Early myocytes exhibit wide-ranging transcriptomic and size heterogeneity that is maintained until adulthood with a continuous transcriptomic shift. Gene regulatory network analysis followed by mosaic gene deletion reveals that peroxisome proliferator-activated receptor coactivator-1 signaling, which is active in vivo but inactive in pluripotent stem cell-derived cardiomyocytes, mediates the shift. This signaling simultaneously regulates key aspects of cardiomyocyte maturation through previously unrecognized proteins, including YAP1 and SF3B2. Our study provides a single-cell roadmap of heterogeneous transitions coupled to cellular features and identifies a multifaceted regulator controlling cardiomyocyte maturation.
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Affiliation(s)
- Sean A Murphy
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Biomedical engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Matthew Miyamoto
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Biomedical engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Anaïs Kervadec
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Suraj Kannan
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Biomedical engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Emmanouil Tampakakis
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sandeep Kambhampati
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Biomedical engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Brian Leei Lin
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sam Paek
- Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ, USA
| | - Peter Andersen
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Dong-Ik Lee
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Renjun Zhu
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Biomedical engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Steven S An
- Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ, USA
| | - David A Kass
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Hideki Uosaki
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Division of Regenerative Medicine, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
| | - Alexandre R Colas
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Chulan Kwon
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Biomedical engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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18
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Kim D, An SS, Lam H, Leahy JW, Liggett SB. Identification and Characterization of Novel Bronchodilator Agonists Acting at Human Airway Smooth Muscle Cell TAS2R5. ACS Pharmacol Transl Sci 2020; 3:1069-1075. [PMID: 33344890 DOI: 10.1021/acsptsci.0c00127] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Indexed: 01/25/2023]
Abstract
Bitter taste receptors (TAS2Rs) are recognized as being expressed on multiple cell types and organs, including human airway smooth muscle (HASM) cells, where agonists promote significant relaxation to constrictive stimuli. Thus, the HASM TAS2Rs have been targeted as novel bronchodilators for the treatment of asthma and other obstructive lung diseases. The TAS2R5 subtype, a dominant receptor on HASM, has few known agonists, all with reported low potency and efficacy. We screened multiple compounds by measuring [Ca2+]i release in HASM (a consequence of receptor-G protein coupling) to establish structure-activity relationships and arrive at a potent agonist for TAS2R5. HASM physiological studies using magnetic twisting cytometry confirmed the relaxation effects of lead compounds. 1,10-Phenanthroline-5,6-dione had the greatest potency (EC50 ≈ 120 nM), amounting to a >1000-fold improvement over the other compounds, and displayed maximal efficacy. These studies revealed critical structural requirements for favorable potencies and efficacies for a potential first-in-class bronchodilator targeting TAS2R5 of the airway.
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Affiliation(s)
- Donghwa Kim
- Department of Medicine, University of South Florida Morsani College of Medicine, Tampa, Florida 33602, United States
| | - Steven S An
- Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, and Institute for Translational Medicine & Science, The State University of New Jersey, Piscataway, New Jersey 08901, United States
| | - Hong Lam
- Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, and Institute for Translational Medicine & Science, The State University of New Jersey, Piscataway, New Jersey 08901, United States
| | - James W Leahy
- Department of Chemistry and the Florida Center of Excellence for Drug Discovery and Innovation, University of South Florida, Tampa, Florida 33620, United States.,Department of Molecular Medicine, University of South Florida Morsani College of Medicine, Tampa, Florida 33613, United States
| | - Stephen B Liggett
- Department of Medicine, University of South Florida Morsani College of Medicine, Tampa, Florida 33602, United States.,Department of Molecular Pharmacology and Physiology, University of South Florida Morsani College of Medicine, Tampa, Florida 33620, United States
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19
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Yeung BHY, Huang J, An SS, Solway J, Mitzner W, Tang WY. Role of Isocitrate Dehydrogenase 2 on DNA Hydroxymethylation in Human Airway Smooth Muscle Cells. Am J Respir Cell Mol Biol 2020; 63:36-45. [PMID: 32150688 DOI: 10.1165/rcmb.2019-0323oc] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Global DNA hydroxymethylation mediated by the TET (ten-eleven translocation) enzyme was induced in allergen-induced airway hyperresponsiveness in mouse lung tissues and specifically in isolated airway smooth muscle (ASM) cells. TET is an α-ketoglutarate (α-KG)-dependent enzyme, and the production of α-KG is catalyzed by IDH (isocitrate dehydrogenase). However, the role of IDH in the regulation of DNA hydroxymethylation in ASM cells is unknown. In comparison with nonasthmatic cells, asthmatic ASM cells exhibited higher TET activity and IDH2 (but not IDH-1 or IDH-3) gene expression levels. We modified the expression of IDH2 in ASM cells from humans with asthma by siRNA and examined the α-KG levels, TET activity, global DNA hydroxymethylation, cell proliferation, and expression of ASM phenotypic genes. Inhibition of IDH2 in asthmatic ASM cells decreased the α-KG levels, TET activity, and global DNA hydroxymethylation, and reversed the aberrant ASM phenotypes (including decreased cell proliferation and ASM phenotypic gene expression). Specifically, asthmatic cells transfected with siRNA against IDH2 showed decreased 5hmC (5-hydroxymethylcytosine) levels at the TGFB2 (transforming growth factor-β2) promoter determined by oxidative bisulfite sequencing. Taken together, our findings reveal that IDH2 plays an important role in the epigenetic regulation of ASM phenotypic changes in asthmatic ASM cells, suggesting that IDH2 is a potential therapeutic target for reversing the abnormal phenotypes seen in asthma.
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Affiliation(s)
- Bonnie H Y Yeung
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Jessie Huang
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Center for Regenerative Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Steven S An
- Department of Pharmacology, Rutgers Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, New Jersey.,Rutgers Institute for Translational Medicine and Science, New Brunswick, New Jersey
| | - Julian Solway
- Department of Medicine, University of Chicago, Chicago, Illinois; and
| | - Wayne Mitzner
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Wan-Yee Tang
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
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20
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Affiliation(s)
- Chun Y Seow
- Department of Pathology and Laboratory MedicineUniversity of British ColumbiaVancouver, British Columbia, Canada
| | - Steven S An
- Rutgers-Robert Wood Johnson Medical SchoolThe State University of New JerseyPiscataway, New Jerseyand.,Rutgers Institute for Translational Medicine and ScienceNew Brunswick, New Jersey
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21
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Dalesio NM, Aksit MA, Ahn K, Raraigh KS, Collaco JM, McGrath-Morrow S, Zeitlin PL, An SS, Cutting GR. Cystic fibrosis transmembrane conductance regulator function, not TAS2R38 gene haplotypes, predict sinus surgery in children and young adults with cystic fibrosis. Int Forum Allergy Rhinol 2020; 10:748-754. [PMID: 32282124 DOI: 10.1002/alr.22548] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/06/2020] [Accepted: 02/11/2020] [Indexed: 11/11/2022]
Abstract
BACKGROUND Chronic rhinosinusitis symptomatology begins in early childhood individuals with cystic fibrosis (CF). Cystic fibrosis transmembrane conductance regulator (CFTR) function contributes to sinus development and disease. Genetic variants of the bitter taste receptor TAS2R38 have been suggested to contribute to sinus disease severity in individuals without CF. Our objective was to explore whether functional TAS2R38 haplotypes and CFTR function are associated with sinus disease or the need for sinus surgery in individuals with CF. METHODS We conducted a retrospective study using prospectively collected data from the CF Twin-Sibling Study. The function of CFTR was assessed via chloride conductance. Genotyping of the TAS2R38 gene identified patients who were homozygous for the functional haplotype, heterozygous, or homozygous for nonfunctional haplotypes. Clustered multivariate logistic regression was performed, controlling for sex and family relationship. RESULTS A total of 1291 patients were evaluated. Patients with ≤1% CFTR function were 1.56 times more likely to require sinus surgery than those with >1% CFTR function (p = 0.049). CFTR function did not correlate significantly with the presence of sinus disease (p = 0.30). In addition, there were no statistically significant differences in diagnosis of sinus disease or need for sinus surgery between patients with functional and nonfunctional TAS2R38 haplotypes. CONCLUSION CFTR function correlates with need for sinus surgery, whereas TAS2R38 function does not appear to contribute to sinus disease or the need for sinus surgery in patients with CF.
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Affiliation(s)
- Nicholas M Dalesio
- Division of Pediatric Anesthesia/Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD.,Department of Otolaryngology/Head & Neck Surgery, Johns Hopkins University, Baltimore, MD
| | - Melis A Aksit
- McKusick-Nathans Institute of the Department of Genetic Medicine, Johns Hopkins University, Baltimore, MD
| | - Kwangmi Ahn
- Genetic Epidemiology Research Branch, National Institute of Mental Health, Bethesda, MD
| | - Karen S Raraigh
- McKusick-Nathans Institute of the Department of Genetic Medicine, Johns Hopkins University, Baltimore, MD
| | - Joseph M Collaco
- Department of Pediatric Pulmonology, Johns Hopkins University, Baltimore, MD
| | | | | | - Steven S An
- Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, NJ.,Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ
| | - Garry R Cutting
- McKusick-Nathans Institute of the Department of Genetic Medicine, Johns Hopkins University, Baltimore, MD
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22
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Ojiaku CA, Chung E, Parikh V, Williams JK, Schwab A, Fuentes AL, Corpuz ML, Lui V, Paek S, Bexiga NM, Narayan S, Nunez FJ, Ahn K, Ostrom RS, An SS, Panettieri RA. Transforming Growth Factor-β1 Decreases β 2-Agonist-induced Relaxation in Human Airway Smooth Muscle. Am J Respir Cell Mol Biol 2020; 61:209-218. [PMID: 30742476 DOI: 10.1165/rcmb.2018-0301oc] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Helper T effector cytokines implicated in asthma modulate the contractility of human airway smooth muscle (HASM) cells. We have reported recently that a profibrotic cytokine, transforming growth factor (TGF)-β1, induces HASM cell shortening and airway hyperresponsiveness. Here, we assessed whether TGF-β1 affects the ability of HASM cells to relax in response to β2-agonists, a mainstay treatment for airway hyperresponsiveness in asthma. Overnight TGF-β1 treatment significantly impaired isoproterenol (ISO)-induced relaxation of carbachol-stimulated, isolated HASM cells. This single-cell mechanical hyporesponsiveness to ISO was corroborated by sustained increases in myosin light chain phosphorylation. In TGF-β1-treated HASM cells, ISO evoked markedly lower levels of intracellular cAMP. These attenuated cAMP levels were, in turn, restored with pharmacological and siRNA inhibition of phosphodiesterase 4 and Smad3, respectively. Most strikingly, TGF-β1 selectively induced phosphodiesterase 4D gene expression in HASM cells in a Smad2/3-dependent manner. Together, these data suggest that TGF-β1 decreases HASM cell β2-agonist relaxation responses by modulating intracellular cAMP levels via a Smad2/3-dependent mechanism. Our findings further define the mechanisms underlying β2-agonist hyporesponsiveness in asthma, and suggest TGF-β1 as a potential therapeutic target to decrease asthma exacerbations in severe and treatment-resistant asthma.
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Affiliation(s)
- Christie A Ojiaku
- 1Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.,2Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey
| | - Elena Chung
- 2Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey
| | - Vishal Parikh
- 2Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey
| | | | - Anthony Schwab
- 2Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey
| | - Ana Lucia Fuentes
- 2Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey
| | - Maia L Corpuz
- 4Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Irvine, California
| | - Victoria Lui
- 5Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Sam Paek
- 5Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Natalia M Bexiga
- 5Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,6Department of Pharmaceutical Biochemistry Technology, University of Sao Paulo, Sao Paulo, Brazil
| | - Shreya Narayan
- 5Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Francisco J Nunez
- 4Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Irvine, California
| | - Kwangmi Ahn
- 7National Institutes of Health, Bethesda, Maryland
| | - Rennolds S Ostrom
- 4Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Irvine, California
| | - Steven S An
- 5Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,8Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland; and.,9Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Reynold A Panettieri
- 1Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.,2Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey
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23
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Xu S, Schwab A, Karmacharya N, Cao G, Woo J, Kim N, An SS, Panettieri Jr RA, Jude JA. FFAR1 activation attenuates histamine-induced myosin light chain phosphorylation and cortical tension development in human airway smooth muscle cells. Respir Res 2020; 21:317. [PMID: 33256729 PMCID: PMC7708129 DOI: 10.1186/s12931-020-01584-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/22/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Activation of free fatty acid receptors (FFAR1 and FFAR4) which are G protein-coupled receptors (GPCRs) with established (patho)physiological roles in a variety of obesity-related disorders, induce human airway smooth muscle (HASM) cell proliferation and shortening. We reported amplified agonist-induced cell shortening in HASM cells obtained from obese lung donors. We hypothesized that FFAR1 modulate excitation-contraction (EC) coupling in HASM cells and play a role in obesity-associated airway hyperresponsiveness. METHODS In HASM cells pre-treated (30 min) with FFAR1 agonists TAK875 and GW9508, we measured histamine-induced Ca2+ mobilization, myosin light chain (MLC) phosphorylation, and cortical tension development with magnetic twisting cytometry (MTC). Phosphorylation of MLC phosphatase and Akt also were determined in the presence of the FFAR1 agonists or vehicle. In addition, the effects of TAK875 on MLC phosphorylation were measured in HASM cells desensitized to β2AR agonists by overnight salmeterol treatment. The inhibitory effect of TAK875 on MLC phosphorylation was compared between HASM cells from age and sex-matched non-obese and obese human lung donors. The mean measurements were compared using One-Way ANOVA with Dunnett's test for multiple group comparisons or Student's t-test two-group comparison. For cortical tension measurements by magnetic twisted cytometry, mixed effect model using SAS V.9.2 was applied. Means were considered significant when p ≤ 0.05. RESULTS Unexpectedly, we found that TAK875, a synthetic FFAR1 agonist, attenuated histamine-induced MLC phosphorylation and cortical tension development in HASM cells. These physiological outcomes were unassociated with changes in histamine-evoked Ca2+ flux, protein kinase B (AKT) activation, or MLC phosphatase inhibition. Of note, TAK875-mediated inhibition of MLC phosphorylation was maintained in β2AR-desensitized HASM cells and across obese and non-obese donor-derived HASM cells. CONCLUSIONS Taken together, our findings identified the FFAR1 agonist TAK875 as a novel bronchoprotective agent that warrants further investigation to treat difficult-to-control asthma and/or airway hyperreactivity in obesity.
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Affiliation(s)
- Shengjie Xu
- grid.430387.b0000 0004 1936 8796The Joint Graduate Program in Toxicology, Department of Pharmacology & Toxicology, Ernest Mario School of Pharmacy, Piscataway, USA ,Rutgers Institute for Translational Medicine & Science, New Brunswick, NJ 08901 USA
| | - Anthony Schwab
- Rutgers Institute for Translational Medicine & Science, New Brunswick, NJ 08901 USA
| | - Nikhil Karmacharya
- Rutgers Institute for Translational Medicine & Science, New Brunswick, NJ 08901 USA
| | - Gaoyuan Cao
- Rutgers Institute for Translational Medicine & Science, New Brunswick, NJ 08901 USA
| | - Joanna Woo
- grid.430387.b0000 0004 1936 8796The Joint Graduate Program in Toxicology, Department of Pharmacology & Toxicology, Ernest Mario School of Pharmacy, Piscataway, USA ,Rutgers Institute for Translational Medicine & Science, New Brunswick, NJ 08901 USA
| | - Nicholas Kim
- grid.430387.b0000 0004 1936 8796Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 USA
| | - Steven S. An
- grid.430387.b0000 0004 1936 8796The Joint Graduate Program in Toxicology, Department of Pharmacology & Toxicology, Ernest Mario School of Pharmacy, Piscataway, USA ,Rutgers Institute for Translational Medicine & Science, New Brunswick, NJ 08901 USA ,grid.430387.b0000 0004 1936 8796Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 USA
| | - Reynold A. Panettieri Jr
- grid.430387.b0000 0004 1936 8796The Joint Graduate Program in Toxicology, Department of Pharmacology & Toxicology, Ernest Mario School of Pharmacy, Piscataway, USA ,Rutgers Institute for Translational Medicine & Science, New Brunswick, NJ 08901 USA ,grid.430387.b0000 0004 1936 8796Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 USA
| | - Joseph A. Jude
- grid.430387.b0000 0004 1936 8796The Joint Graduate Program in Toxicology, Department of Pharmacology & Toxicology, Ernest Mario School of Pharmacy, Piscataway, USA ,Rutgers Institute for Translational Medicine & Science, New Brunswick, NJ 08901 USA ,grid.430387.b0000 0004 1936 8796Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 USA ,grid.430387.b0000 0004 1936 8796Pharmacology & Toxicology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Rm: 4276, 89, French Street, New Brunswick, NJ 08901 USA
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24
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Tuday E, Nomura Y, Ruhela D, Nakano M, Fu X, Shah A, Roman B, Yamaguchi A, An SS, Steenbergen C, Baraban JM, Berkowitz DE, Das S. Deletion of the microRNA-degrading nuclease, translin/trax, prevents pathogenic vascular stiffness. Am J Physiol Heart Circ Physiol 2019; 317:H1116-H1124. [PMID: 31625778 DOI: 10.1152/ajpheart.00153.2019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Vascular stiffness plays a key role in the pathogenesis of hypertension. Recent studies indicate that the age-associated reduction in miR-181b levels in vascular smooth muscle cells (VSMCs) contributes to increased vascular stiffness. As these findings suggest that inhibiting degradation of miR-181b might prevent vascular stiffening, we have assessed whether the microRNA-degrading translin/trax (TN/TX) complex mediates degradation of miR-181b in the aorta.We found that TN-/- mice display elevated levels of miR-181b expression in the aorta. Therefore, we tested whether TN deletion prevents vascular stiffening in a mouse model of hypertension, induced by chronic high-salt intake (4%NaCl in drinking water for 3 wk; HSW). TN-/- mice subjected to HSW stress do not show increased vascular stiffness, as monitored by pulse wave velocity and tensile testing. The protective effect of TN deletion in the HSW paradigm appears to be mediated by its ability to increase miR-181b in the aorta since HSW decreases levels of miR-181b in WT mice, but not in TN KO mice. We demonstrate for the first time that interfering with microRNA degradation can have a beneficial impact on the vascular system and identify the microRNA-degrading TN/TX RNase complex as a potential therapeutic target in combatting vascular stiffness.NEW & NOTEWORTHY While the biogenesis and mechanism of action of mature microRNA are well understood, much less is known about the regulation of microRNA via degradation. Recent studies have identified the protein complex, translin(TN)/trax(TX), as a microRNA-degrading enzyme. Here, we demonstrate that TN/TX is expressed in vascular smooth muscle cells. Additionally, deletion of the TN/TX complex selectively increases aortic miR-181b and prevents increased vascular stiffness caused by ingestion of high-salt water. To our knowledge, this is first report describing the role of a microRNA RNAse in cardiovascular biology or pathobiology.
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Affiliation(s)
- Eric Tuday
- Division of Cardiology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Yohei Nomura
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Deepa Ruhela
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Mitsunori Nakano
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Xiuping Fu
- Solomon H. Snyder Department of Neuroscience and Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Aparna Shah
- Solomon H. Snyder Department of Neuroscience and Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Barbara Roman
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Atsushi Yamaguchi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Steven S An
- Department of Environmental Health and Engineering, Jichi Medical University, Saitama, Japan.,Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Charles Steenbergen
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Jay M Baraban
- Solomon H. Snyder Department of Neuroscience and Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Dan E Berkowitz
- Department of Anesthesiology and Perioperative Medicine, University of Alabama, Birmingham, Alabama
| | - Samarjit Das
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland.,Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
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25
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Steppan J, Wang H, Bergman Y, Rauer MJ, Tan S, Jandu S, Nandakumar K, Barreto-Ortiz S, Cole RN, Boronina TN, Zhu W, Halushka MK, An SS, Berkowitz DE, Santhanam L. Lysyl oxidase-like 2 depletion is protective in age-associated vascular stiffening. Am J Physiol Heart Circ Physiol 2019; 317:H49-H59. [PMID: 31002285 PMCID: PMC6692735 DOI: 10.1152/ajpheart.00670.2018] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 03/11/2019] [Accepted: 04/01/2019] [Indexed: 01/04/2023]
Abstract
Vascular stiffening and its sequelae are major causes of morbidity and mortality in the elderly. The increasingly accepted concept of "smooth muscle cell (SMC) stiffness syndrome" along with matrix deposition has emerged in vascular biology to account for the mechanical phenotype of arterial aging, but the molecular targets remain elusive. In this study, using an unbiased proteomic analysis, we identified lysyl oxidase-like 2 (LOXL2) as a critical SMC mediator for age-associated vascular stiffening. We tested the hypothesis that loss of LOXL2 function is protective in aging-associated vascular stiffening. We determined that exogenous and endogenous nitric oxide markedly decreased LOXL2 abundance and activity in the extracellular matrix of isolated SMCs and LOXL2 endothelial cells suppress LOXL2 abundance in the aorta. In a longitudinal study, LOXL2+/- mice were protected from age-associated increase in pulse-wave velocity, an index of vascular stiffening, as occurred in littermate wild-type mice. Using isolated aortic segments, we found that LOXL2 mediates vascular stiffening in aging by promoting SMC stiffness, augmented SMC contractility, and vascular matrix deposition. Together, these studies establish LOXL2 as a nodal point for a new therapeutic approach to treat age-associated vascular stiffening. NEW & NOTEWORTHY Increased central vascular stiffness augments risk of major adverse cardiovascular events. Despite significant advances in understanding the genetic and molecular underpinnings of vascular stiffening, targeted therapy has remained elusive. Here, we show that lysyl oxidase-like 2 (LOXL2) drives vascular stiffening during aging by promoting matrix remodeling and vascular smooth muscle cell stiffening. Reduced LOXL2 expression protects mice from age-associated vascular stiffening and delays the onset of isolated systolic hypertension, a major consequence of stiffening.
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Affiliation(s)
- Jochen Steppan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Huilei Wang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Yehudit Bergman
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Marcel J Rauer
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Siqi Tan
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University , Baltimore, Maryland
| | - Sandeep Jandu
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Kavitha Nandakumar
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Sebastian Barreto-Ortiz
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Robert N Cole
- Department of Biological Chemistry, Johns Hopkins University , Baltimore, Maryland
| | - Tatiana N Boronina
- Department of Biological Chemistry, Johns Hopkins University , Baltimore, Maryland
| | - Wanqu Zhu
- Bloomberg School of Public Health, Department of Environmental Health and Engineering, Johns Hopkins University , Baltimore, Maryland
| | - Marc K Halushka
- Department of Pathology, Johns Hopkins University , Baltimore, Maryland
| | - Steven S An
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University , Baltimore, Maryland
- Bloomberg School of Public Health, Department of Environmental Health and Engineering, Johns Hopkins University , Baltimore, Maryland
| | - Dan E Berkowitz
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
- Biomedical Engineering, Johns Hopkins University , Baltimore, Maryland
| | - Lakshmi Santhanam
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
- Biomedical Engineering, Johns Hopkins University , Baltimore, Maryland
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26
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Suresh K, Carino K, Johnston L, Servinsky L, Machamer CE, Kolb TM, Lam H, Dudek SM, An SS, Rane MJ, Shimoda LA, Damarla M. A nonapoptotic endothelial barrier-protective role for caspase-3. Am J Physiol Lung Cell Mol Physiol 2019; 316:L1118-L1126. [PMID: 30908935 PMCID: PMC6620669 DOI: 10.1152/ajplung.00487.2018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 02/26/2019] [Accepted: 03/17/2019] [Indexed: 12/25/2022] Open
Abstract
Noncanonical roles for caspase-3 are emerging in the fields of cancer and developmental biology. However, little is known of nonapoptotic functions of caspase-3 in most cell types. We have recently demonstrated a disassociation between caspase-3 activation and execution of apoptosis with accompanying cytoplasmic caspase-3 sequestration and preserved endothelial barrier function. Therefore, we tested the hypothesis that nonapoptotic caspase-3 activation promotes endothelial barrier integrity. Human lung microvascular endothelial cells were exposed to thrombin, a nonapoptotic stimulus, and endothelial barrier function was assessed using electric cell-substrate impedance sensing. Actin cytoskeletal rearrangement and paracellular gap formation were assessed using phalloidin staining. Cell stiffness was evaluated using magnetic twisting cytometry. In addition, cell lysates were harvested for protein analyses. Caspase-3 was inhibited pharmacologically with pan-caspase and a caspase-3-specific inhibitor. Molecular inhibition of caspase-3 was achieved using RNA interference. Cells exposed to thrombin exhibited a cytoplasmic activation of caspase-3 with transient and nonapoptotic decrease in endothelial barrier function as measured by a drop in electrical resistance followed by a rapid recovery. Inhibition of caspases led to a more pronounced and rapid drop in thrombin-induced endothelial barrier function, accompanied by increased endothelial cell stiffness and paracellular gaps. Caspase-3-specific inhibition and caspase-3 knockdown both resulted in more pronounced thrombin-induced endothelial barrier disruption. Taken together, our results suggest cytoplasmic caspase-3 has nonapoptotic functions in human endothelium and can promote endothelial barrier integrity.
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Affiliation(s)
- Karthik Suresh
- Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Kathleen Carino
- Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Laura Johnston
- Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Laura Servinsky
- Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Carolyn E Machamer
- Department of Cell Biology, Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Todd M Kolb
- Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Hong Lam
- Department of Environmental Health and Engineering, Johns Hopkins University School of Public Health , Baltimore, Maryland
| | - Steven M Dudek
- Department of Medicine, College of Medicine, University of Illinois at Chicago , Chicago, Illinois
| | - Steven S An
- Department of Environmental Health and Engineering, Johns Hopkins University School of Public Health , Baltimore, Maryland
| | - Madhavi J Rane
- Department of Medicine, School of Medicine, University of Louisville , Louisville, Kentucky
| | - Larissa A Shimoda
- Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Mahendra Damarla
- Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland
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27
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Hughes RM, Simons BW, Khan H, Miller R, Kugler V, Torquato S, Theodros D, Haffner MC, Lotan T, Huang J, Davicioni E, An SS, Riddle RC, Thorek DLJ, Garraway IP, Fertig EJ, Isaacs JT, Brennen WN, Park BH, Hurley PJ. Asporin Restricts Mesenchymal Stromal Cell Differentiation, Alters the Tumor Microenvironment, and Drives Metastatic Progression. Cancer Res 2019; 79:3636-3650. [PMID: 31123087 DOI: 10.1158/0008-5472.can-18-2931] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 04/17/2019] [Accepted: 05/20/2019] [Indexed: 12/17/2022]
Abstract
Tumor progression to metastasis is not cancer cell autonomous, but rather involves the interplay of multiple cell types within the tumor microenvironment. Here we identify asporin (ASPN) as a novel, secreted mesenchymal stromal cell (MSC) factor in the tumor microenvironment that regulates metastatic development. MSCs expressed high levels of ASPN, which decreased following lineage differentiation. ASPN loss impaired MSC self-renewal and promoted terminal cell differentiation. Mechanistically, secreted ASPN bound to BMP-4 and restricted BMP-4-induced MSC differentiation prior to lineage commitment. ASPN expression was distinctly conserved between MSC and cancer-associated fibroblasts (CAF). ASPN expression in the tumor microenvironment broadly impacted multiple cell types. Prostate tumor allografts in ASPN-null mice had a reduced number of tumor-associated MSCs, fewer cancer stem cells, decreased tumor vasculature, and an increased percentage of infiltrating CD8+ T cells. ASPN-null mice also demonstrated a significant reduction in lung metastases compared with wild-type mice. These data establish a role for ASPN as a critical MSC factor that extensively affects the tumor microenvironment and induces metastatic progression. SIGNIFICANCE: These findings show that asporin regulates key properties of mesenchymal stromal cells, including self-renewal and multipotency, and asporin expression by reactive stromal cells alters the tumor microenvironment and promotes metastatic progression.
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Affiliation(s)
- Robert M Hughes
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Brian W Simons
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Hamda Khan
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Rebecca Miller
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Valentina Kugler
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Samantha Torquato
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Debebe Theodros
- The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Michael C Haffner
- The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Tamara Lotan
- The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Jessie Huang
- The Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Elai Davicioni
- Genome Dx Biosciences, Inc., Vancouver, British Columbia, Canada
| | - Steven S An
- The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,The Whiting School of Engineering, Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Ryan C Riddle
- The Department of Orthopedic Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Daniel L J Thorek
- The Department of Radiology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Isla P Garraway
- The Department of Urology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Elana J Fertig
- The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - John T Isaacs
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - W Nathaniel Brennen
- The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Ben H Park
- The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Whiting School of Engineering, Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Paula J Hurley
- The James Buchanan Brady Urological Institute, Department of Urology, Johns Hopkins School of Medicine, Baltimore, Maryland. .,The Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
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28
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Kilic O, Yoon A, Shah SR, Yong HM, Ruiz-Valls A, Chang H, Panettieri RA, Liggett SB, Quiñones-Hinojosa A, An SS, Levchenko A. A microphysiological model of the bronchial airways reveals the interplay of mechanical and biochemical signals in bronchospasm. Nat Biomed Eng 2019; 3:532-544. [PMID: 31150010 PMCID: PMC6653686 DOI: 10.1038/s41551-019-0366-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 02/07/2019] [Indexed: 01/08/2023]
Abstract
In asthma, airway smooth muscle (ASM) contraction and the subsequent decrease in airflow involve a poorly understood set of mechanical and biochemical events. Organ-level and molecular-scale models of the airway are frequently based on purely mechanical or biochemical considerations and do not account for physiological mechanochemical couplings. Here, we present a microphysiological model of the airway that allows for the quantitative analysis of the interactions between mechanical and biochemical signals triggered by compressive stress on epithelial cells. We show that a mechanical stimulus mimicking a bronchospastic challenge triggers the marked contraction and delayed relaxation of ASM, and that this is mediated by the discordant expression of cyclooxygenase genes in epithelial cells and regulated by the mechanosensor and transcriptional co-activator YAP (Yes-associated protein). A mathematical model of the intercellular feedback interactions recapitulates aspects of obstructive disease of the airways, including pathognomonic features of severe, difficult-to-treat asthma. The microphysiological model could be used to investigate the mechanisms of asthma pathogenesis and to develop therapeutic strategies that disrupt the positive feedback loop that leads to persistent airway constriction.
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Affiliation(s)
- Onur Kilic
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA. .,Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Arum Yoon
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Sagar R Shah
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Hwan Mee Yong
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Alejandro Ruiz-Valls
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Hao Chang
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Reynold A Panettieri
- Institute for Translational Medicine and Science, Rutgers University, New Brunswick, NJ, USA
| | - Stephen B Liggett
- Department of Medical Engineering, University of South Florida, Tampa, FL, USA.,Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | | | - Steven S An
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. .,Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. .,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA. .,Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea.
| | - Andre Levchenko
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA. .,Department of Biomedical Engineering, Yale University, New Haven, CT, USA. .,Yale Systems Biology Institute, Yale University, West Haven, CT, USA.
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29
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Lam H, Zhu W, Wang H, Luo J, Zheng Q, Valkenburg K, Hurley P, Pluznick JL, Tran PT, Marzo AMD, Isaacs WB, Pienta KJ, An SS. Abstract 1094: A role for olfactory-like chemosensory signaling in prostate cancer metastasis. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-1094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Odorant sensing G protein-coupled receptors (ORs) are the largest signaling family encoded by the mammalian genome. Historical understanding suggests these specialized receptors are only expressed on sensory neurons in the main olfactory epithelium and respond to external ligands involved in smell perception. More recently, olfactory-like chemosensory signaling has been found in a variety of non-sensory tissues and shown to be evoked by endogenous metabolic byproducts of anaerobic bacteria and hypoxia. Here we screened the full complement of ORs in the prostate and studied their expression and function in the context of metastatic-invasion of prostate cancer (PCa). In the germline of men with lethal PCa, we detected a large number of nonsynonymous coding changes in ~400 different OR genes including specific missense and loss-of-function mutations that are present in higher rates than would be predicted. RNA-Seq of clinical prostate samples showed higher OR51E2 expression in localized PCa than normal prostate. Most striking, we detected a low abundance of the OR51E2 transcript in PCa metastases to the bone relative to localized. Similarly, we found a marked reduction of OR51E2 expression in PCa cell lines that were derived from bone metastases, or those that had undergone an epithelial-mesenchymal transition (EMT) phenotype through co-culture with IL4-treated CD14+ monocytes. Using mouse models of PCa metastasis, we confirmed the overexpression of OR51E2 in localized tumors generated by subcutaneous injection while observing a marked reduction in PCa cells metastatic to the bone that also demonstrated a mesenchymal cellular phenotype. Together these findings establish, for the first time, a novel role for ‘sensory GPCRs' in PCa progression to metastasis.
Grant supports: The Johns Hopkins Discovery Award; The Johns Hopkins Catalyst Award; Maryland Cigarette Restitution Fund
Citation Format: Hong Lam, Wanqu Zhu, Hailun Wang, Jun Luo, Qizhi Zheng, Ken Valkenburg, Paula Hurley, Jennifer L. Pluznick, Phuoc T. Tran, Angelo M. De Marzo, William B. Isaacs, Kenneth J. Pienta, Steven S. An. A role for olfactory-like chemosensory signaling in prostate cancer metastasis [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 1094.
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Affiliation(s)
- Hong Lam
- Johns Hopkins University, Baltimore, MD
| | - Wanqu Zhu
- Johns Hopkins University, Baltimore, MD
| | | | - Jun Luo
- Johns Hopkins University, Baltimore, MD
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30
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Ojiaku CA, Cao G, Zhu W, Yoo EJ, Shumyatcher M, Himes BE, An SS, Panettieri RA. TGF-β1 Evokes Human Airway Smooth Muscle Cell Shortening and Hyperresponsiveness via Smad3. Am J Respir Cell Mol Biol 2018; 58:575-584. [PMID: 28984468 PMCID: PMC5946330 DOI: 10.1165/rcmb.2017-0247oc] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 09/05/2017] [Indexed: 01/10/2023] Open
Abstract
Transforming growth factor β1 (TGF-β1), a cytokine whose levels are elevated in the airways of patients with asthma, perpetuates airway inflammation and modulates airway structural cell remodeling. However, the role of TGF-β1 in excessive airway narrowing in asthma, or airway hyperresponsiveness (AHR), remains unclear. In this study, we set out to investigate the direct effects of TGF-β1 on human airway smooth muscle (HASM) cell shortening and hyperresponsiveness. The dynamics of AHR and single-cell excitation-contraction coupling were measured in human precision-cut lung slices and in isolated HASM cells using supravital microscopy and magnetic twisting cytometry, respectively. In human precision-cut lung slices, overnight treatment with TGF-β1 significantly augmented basal and carbachol-induced bronchoconstriction. In isolated HASM cells, TGF-β1 increased basal and methacholine-induced cytoskeletal stiffness in a dose- and time-dependent manner. TGF-β1-induced single-cell contraction was corroborated by concomitant increases in myosin light chain and myosin phosphatase target subunit 1 phosphorylation levels, which were attenuated by small interfering RNA-mediated knockdown of Smad3 and pharmacological inhibition of Rho kinase. Strikingly, these physiological effects of TGF-β1 occurred through a RhoA-independent mechanism, with little effect on HASM cell [Ca2+]i levels. Together, our data suggest that TGF-β1 enhances HASM excitation-contraction coupling pathways to induce HASM cell shortening and hyperresponsiveness. These findings reveal a potential link between airway injury-repair responses and bronchial hyperreactivity in asthma, and define TGF-β1 signaling as a potential target to reduce AHR in asthma.
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Affiliation(s)
- Christie A. Ojiaku
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, and
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey; and
| | - Gaoyuan Cao
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey; and
| | - Wanqu Zhu
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, and
| | - Edwin J. Yoo
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, and
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey; and
| | - Maya Shumyatcher
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Blanca E. Himes
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Steven S. An
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, and
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Reynold A. Panettieri
- Rutgers Institute for Translational Medicine and Science, Child Health Institute, Rutgers University, New Brunswick, New Jersey; and
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31
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Rainer PP, Dong P, Sorge M, Fert-Bober J, Holewinski RJ, Wang Y, Foss CA, An SS, Baracca A, Solaini G, Glabe CG, Pomper MG, Van Eyk JE, Tomaselli GF, Paolocci N, Agnetti G. Desmin Phosphorylation Triggers Preamyloid Oligomers Formation and Myocyte Dysfunction in Acquired Heart Failure. Circ Res 2018; 122:e75-e83. [PMID: 29483093 DOI: 10.1161/circresaha.117.312082] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 02/18/2018] [Accepted: 02/23/2018] [Indexed: 01/28/2023]
Abstract
RATIONALE Disrupted proteostasis is one major pathological trait that heart failure (HF) shares with other organ proteinopathies, such as Alzheimer and Parkinson diseases. Yet, differently from the latter, whether and how cardiac preamyloid oligomers (PAOs) develop in acquired forms of HF is unclear. OBJECTIVE We previously reported a rise in monophosphorylated, aggregate-prone desmin in canine and human HF. We now tested whether monophosphorylated desmin acts as the seed nucleating PAOs formation and determined whether positron emission tomography is able to detect myocardial PAOs in nongenetic HF. METHODS AND RESULTS Here, we first show that toxic cardiac PAOs accumulate in the myocardium of mice subjected to transverse aortic constriction and that PAOs comigrate with the cytoskeletal protein desmin in this well-established model of acquired HF. We confirm this evidence in cardiac extracts from human ischemic and nonischemic HF. We also demonstrate that Ser31 phosphorylated desmin aggregates extensively in cultured cardiomyocytes. Lastly, we were able to detect the in vivo accumulation of cardiac PAOs using positron emission tomography for the first time in acquired HF. CONCLUSIONS Ser31 phosphorylated desmin is a likely candidate seed for the nucleation process leading to cardiac PAOs deposition. Desmin post-translational processing and misfolding constitute a new, attractive avenue for the diagnosis and treatment of the cardiac accumulation of toxic PAOs that can now be measured by positron emission tomography in acquired HF.
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Affiliation(s)
- Peter P Rainer
- From the Division of Cardiology, Medical University of Graz, Austria (P.P.R.)
- Johns Hopkins School of Medicine, Baltimore, MD (P.P.R., P.D., Y.W., C.A.F., M.G.P., G.F.T., N.P., G.A.)
| | - Peihong Dong
- Johns Hopkins School of Medicine, Baltimore, MD (P.P.R., P.D., Y.W., C.A.F., M.G.P., G.F.T., N.P., G.A.)
| | | | - Justyna Fert-Bober
- Cedars-Sinai Medical Center, Beverly-Hills, CA (J.F.-B., R.J.H., J.E.V.E.)
| | | | - Yuchuan Wang
- Johns Hopkins School of Medicine, Baltimore, MD (P.P.R., P.D., Y.W., C.A.F., M.G.P., G.F.T., N.P., G.A.)
| | - Catherine A Foss
- Johns Hopkins School of Medicine, Baltimore, MD (P.P.R., P.D., Y.W., C.A.F., M.G.P., G.F.T., N.P., G.A.)
| | - Steven S An
- Johns Hopkins School of Public Health, Baltimore, MD (S.S.A.)
| | - Alessandra Baracca
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy (A.B., G.S., G.A.)
| | - Giancarlo Solaini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy (A.B., G.S., G.A.)
| | | | - Martin G Pomper
- Johns Hopkins School of Medicine, Baltimore, MD (P.P.R., P.D., Y.W., C.A.F., M.G.P., G.F.T., N.P., G.A.)
| | - Jennifer E Van Eyk
- Cedars-Sinai Medical Center, Beverly-Hills, CA (J.F.-B., R.J.H., J.E.V.E.)
| | - Gordon F Tomaselli
- Johns Hopkins School of Medicine, Baltimore, MD (P.P.R., P.D., Y.W., C.A.F., M.G.P., G.F.T., N.P., G.A.)
| | - Nazareno Paolocci
- Johns Hopkins School of Medicine, Baltimore, MD (P.P.R., P.D., Y.W., C.A.F., M.G.P., G.F.T., N.P., G.A.)
- University of Perugia, Italy (N.P.)
| | - Giulio Agnetti
- Johns Hopkins School of Medicine, Baltimore, MD (P.P.R., P.D., Y.W., C.A.F., M.G.P., G.F.T., N.P., G.A.)
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy (A.B., G.S., G.A.)
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32
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Zhu W, Kim BC, Wang M, Huang J, Isak A, Bexiga NM, Monticone R, Ha T, Lakatta EG, An SS. TGFβ1 reinforces arterial aging in the vascular smooth muscle cell through a long-range regulation of the cytoskeletal stiffness. Sci Rep 2018; 8:2668. [PMID: 29422510 PMCID: PMC5805716 DOI: 10.1038/s41598-018-20763-w] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 01/24/2018] [Indexed: 02/07/2023] Open
Abstract
Here we report exquisitely distinct material properties of primary vascular smooth muscle (VSM) cells isolated from the thoracic aorta of adult (8 months) vs. aged (30 months) F344XBN rats. Individual VSM cells derived from the aged animals showed a tense internal network of the actin cytoskeleton (CSK), exhibiting increased stiffness (elastic) and frictional (loss) moduli than those derived from the adult animals over a wide frequency range of the imposed oscillatory deformation. This discrete mechanical response was long-lived in culture and persistent across a physiological range of matrix rigidity. Strikingly, the pro-fibrotic transforming growth factor β1 (TGFβ1) emerged as a specific modifier of age-associated VSM stiffening in vitro. TGFβ1 reinforced the mechanical phenotype of arterial aging in VSM cells on multiple time and length scales through clustering of mechanosensitive α5β1 and αvβ3 integrins. Taken together, these studies identify a novel nodal point for the long-range regulation of VSM stiffness and serve as a proof-of-concept that the broad-based inhibition of TGFβ1 expression, or TGFβ1 signal transduction in VSM, may be a useful therapeutic approach to mitigate the pathologic progression of central arterial wall stiffening associated with aging.
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Affiliation(s)
- Wanqu Zhu
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Byoung Choul Kim
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University, Baltimore, MD, 21205, USA.,Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.,Howard Hughes Medical Institute, Baltimore, Maryland, 21218, USA.,Division of Nano-Bioengineering, Incheon National University, Incheon, Republic of Korea
| | - Mingyi Wang
- Laboratory of Cardiovascular Science, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Jessie Huang
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Abraham Isak
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Natalia M Bexiga
- Immunobiological and Biopharmaceutical Laboratory, Department of Pharmaceutical Biochemistry Technology, University of Sao Paulo, Sao Paulo, Brazil
| | - Robert Monticone
- Laboratory of Cardiovascular Science, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Taekjip Ha
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University, Baltimore, MD, 21205, USA.,Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.,Howard Hughes Medical Institute, Baltimore, Maryland, 21218, USA
| | - Edward G Lakatta
- Laboratory of Cardiovascular Science, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA.
| | - Steven S An
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA. .,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA. .,Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea.
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33
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Pera T, Deshpande DA, Ippolito M, Wang B, Gavrila A, Michael JV, Nayak AP, Tompkins E, Farrell E, Kroeze WK, Roth BL, Panettieri RA, Benovic JL, An SS, Dulin NO, Penn RB. Biased signaling of the proton-sensing receptor OGR1 by benzodiazepines. FASEB J 2018; 32:862-874. [PMID: 29042451 PMCID: PMC5888400 DOI: 10.1096/fj.201700555r] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 10/02/2017] [Indexed: 01/01/2023]
Abstract
GPCRs have diverse signaling capabilities, based on their ability to assume various conformations. Moreover, it is now appreciated that certain ligands can promote distinct receptor conformations and thereby bias signaling toward a specific pathway to differentially affect cell function. The recently deorphanized G protein-coupled receptor OGR1 [ovarian cancer G protein-coupled receptor 1 ( GPR68)] exhibits diverse signaling events when stimulated by reductions in extracellular pH. We recently demonstrated airway smooth muscle cells transduce multiple signaling events, reflecting a diverse capacity to couple to multiple G proteins. Moreover, we recently discovered that the benzodiazepine lorazepam, more commonly recognized as an agonist of the γ-aminobutyric acid A (GABAA) receptor, can function as an allosteric modulator of OGR1 and, similarly, can promote multiple signaling events. In this study, we demonstrated that different benzodiazepines exhibit a range of biases for OGR1, with sulazepam selectively activating the canonical Gs of the G protein signaling pathway, in heterologous expression systems, as well as in several primary cell types. These findings highlight the potential power of biased ligand pharmacology for manipulating receptor signaling qualitatively, to preferentially activate pathways that are therapeutically beneficial.-Pera, T., Deshpande, D. A., Ippolito, M., Wang, B., Gavrila, A., Michael, J. V., Nayak, A. P., Tompkins, E., Farrell, E., Kroeze, W. K., Roth, B. L., Panettieri, R. A. Jr Benovic, J. L., An, S. S., Dulin, N. O., Penn, R. B. Biased signaling of the proton-sensing receptor OGR1 by benzodiazepines.
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Affiliation(s)
- Tonio Pera
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Deepak A. Deshpande
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Michael Ippolito
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Bin Wang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Adelina Gavrila
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - James V. Michael
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Ajay P. Nayak
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Eric Tompkins
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Eleni Farrell
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Wesley K. Kroeze
- Department of Pharmacology, University of North Carolina, Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
- National Institute of Mental Health Psychoactive Drug Screening Program, School of Medicine, University of North Carolina, Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Bryan L. Roth
- Department of Pharmacology, University of North Carolina, Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
- National Institute of Mental Health Psychoactive Drug Screening Program, School of Medicine, University of North Carolina, Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Reynold A. Panettieri
- Rutgers Institute for Translational Medicine and Science, Child Health Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Jeffrey L. Benovic
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Steven S. An
- Department of Environmental Health and Engineering, Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Maryland, USA; and
| | - Nickolai O. Dulin
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, Illinois, USA
| | - Raymond B. Penn
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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Yoo EJ, Cao G, Koziol‐White CJ, Ojiaku CA, Sunder K, Jude JA, Michael JV, Lam H, Pushkarsky I, Damoiseaux R, Di Carlo D, Ahn K, An SS, Penn RB, Panettieri RA. Gα 12 facilitates shortening in human airway smooth muscle by modulating phosphoinositide 3-kinase-mediated activation in a RhoA-dependent manner. Br J Pharmacol 2017; 174:4383-4395. [PMID: 28921504 PMCID: PMC5715591 DOI: 10.1111/bph.14040] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 09/12/2017] [Accepted: 09/12/2017] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND AND PURPOSE PI3K-dependent activation of Rho kinase (ROCK) is necessary for agonist-induced human airway smooth muscle cell (HASMC) contraction, and inhibition of PI3K promotes bronchodilation of human small airways. The mechanisms driving agonist-mediated PI3K/ROCK axis activation, however, remain unclear. Given that G12 family proteins activate ROCK pathways in other cell types, their role in M3 muscarinic acetylcholine receptor-stimulated PI3K/ROCK activation and contraction was examined. EXPERIMENTAL APPROACH Gα12 coupling was evaluated using co-immunoprecipitation and serum response element (SRE)-luciferase reporter assays. siRNA and pharmacological approaches, as well as overexpression of a regulator of G-protein signaling (RGS) proteins were applied in HASMCs. Phosphorylation levels of Akt, myosin phosphatase targeting subunit-1 (MYPT1), and myosin light chain-20 (MLC) were measured. Contraction and shortening were evaluated using magnetic twisting cytometry (MTC) and micro-pattern deformation, respectively. Human precision-cut lung slices (hPCLS) were utilized to evaluate bronchoconstriction. KEY RESULTS Knockdown of M3 receptors or Gα12 attenuated activation of Akt, MYPT1, and MLC phosphorylation. Gα12 coimmunoprecipitated with M3 receptors, and p115RhoGEF-RGS overexpression inhibited carbachol-mediated induction of SRE-luciferase reporter. p115RhoGEF-RGS overexpression inhibited carbachol-induced activation of Akt, HASMC contraction, and shortening. Moreover, inhibition of RhoA blunted activation of PI3K. Lastly, RhoA inhibitors induced dilation of hPCLS. CONCLUSIONS AND IMPLICATIONS Gα12 plays a crucial role in HASMC contraction via RhoA-dependent activation of the PI3K/ROCK axis. Inhibition of RhoA activation induces bronchodilation in hPCLS, and targeting Gα12 signaling may elucidate novel therapeutic targets in asthma. These findings provide alternative approaches to the clinical management of airway obstruction in asthma.
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Affiliation(s)
- Edwin J Yoo
- Rutgers Institute for Translational Medicine and Science, Child Health InstituteRutgers UniversityNew BrunswickNJUSA
| | - Gaoyuan Cao
- Rutgers Institute for Translational Medicine and Science, Child Health InstituteRutgers UniversityNew BrunswickNJUSA
| | - Cynthia J Koziol‐White
- Rutgers Institute for Translational Medicine and Science, Child Health InstituteRutgers UniversityNew BrunswickNJUSA
| | - Christie A Ojiaku
- Rutgers Institute for Translational Medicine and Science, Child Health InstituteRutgers UniversityNew BrunswickNJUSA
| | - Krishna Sunder
- Rutgers Institute for Translational Medicine and Science, Child Health InstituteRutgers UniversityNew BrunswickNJUSA
| | - Joseph A Jude
- Rutgers Institute for Translational Medicine and Science, Child Health InstituteRutgers UniversityNew BrunswickNJUSA
| | - James V Michael
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung CenterThomas Jefferson UniversityPhiladelphiaPAUSA
| | - Hong Lam
- Department of Environmental Health and EngineeringJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
| | - Ivan Pushkarsky
- Department of BioengineeringUniversity of CaliforniaLos AngelesCAUSA
| | - Robert Damoiseaux
- Department of Molecular and Medicinal PharmacologyUniversity of CaliforniaLos AngelesCAUSA
- California NanoSystems InstituteUniversity of CaliforniaLos AngelesCAUSA
| | - Dino Di Carlo
- Department of BioengineeringUniversity of CaliforniaLos AngelesCAUSA
- California NanoSystems InstituteUniversity of CaliforniaLos AngelesCAUSA
- Department of Mechanical EngineeringUniversity of CaliforniaLos AngelesCAUSA
| | - Kwangmi Ahn
- National Institute of Mental HealthBethesdaMDUSA
| | - Steven S An
- Department of Environmental Health and EngineeringJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
- Department of Chemical and Biomolecular EngineeringJohns Hopkins UniversityBaltimoreMDUSA
| | - Raymond B Penn
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung CenterThomas Jefferson UniversityPhiladelphiaPAUSA
| | - Reynold A Panettieri
- Rutgers Institute for Translational Medicine and Science, Child Health InstituteRutgers UniversityNew BrunswickNJUSA
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35
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Barreto Ortiz S, Hori D, Nomura Y, Yun X, Jiang H, Yong H, Chen J, Paek S, Pandey D, Sikka G, Bhatta A, Gillard A, Steppan J, Kim JH, Adachi H, Barodka VM, Romer L, An SS, Shimoda LA, Santhanam L, Berkowitz DE. Opsin 3 and 4 mediate light-induced pulmonary vasorelaxation that is potentiated by G protein-coupled receptor kinase 2 inhibition. Am J Physiol Lung Cell Mol Physiol 2017; 314:L93-L106. [PMID: 28882814 DOI: 10.1152/ajplung.00091.2017] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We recently demonstrated that blue light induces vasorelaxation in the systemic mouse circulation, a phenomenon mediated by the nonvisual G protein-coupled receptor melanopsin (Opsin 4; Opn4). Here we tested the hypothesis that nonvisual opsins mediate photorelaxation in the pulmonary circulation. We discovered Opsin 3 (Opn3), Opn4, and G protein-coupled receptor kinase 2 (GRK2) in rat pulmonary arteries (PAs) and in pulmonary arterial smooth muscle cells (PASMCs), where the opsins interact directly with GRK2, as demonstrated with a proximity ligation assay. Light elicited an intensity-dependent relaxation of PAs preconstricted with phenylephrine (PE), with a maximum response between 400 and 460 nm (blue light). Wavelength-specific photorelaxation was attenuated in PAs from Opn4-/- mice and further reduced following shRNA-mediated knockdown of Opn3. Inhibition of GRK2 amplified the response and prevented physiological desensitization to repeated light exposure. Blue light also prevented PE-induced constriction in isolated PAs, decreased basal tone, ablated PE-induced single-cell contraction of PASMCs, and reversed PE-induced depolarization in PASMCs when GRK2 was inhibited. The photorelaxation response was modulated by soluble guanylyl cyclase but not by protein kinase G or nitric oxide. Most importantly, blue light induced significant vasorelaxation of PAs from rats with chronic pulmonary hypertension and effectively lowered pulmonary arterial pressure in isolated intact perfused rat lungs subjected to acute hypoxia. These findings show that functional Opn3 and Opn4 in PAs represent an endogenous "optogenetic system" that mediates photorelaxation in the pulmonary vasculature. Phototherapy in conjunction with GRK2 inhibition could therefore provide an alternative treatment strategy for pulmonary vasoconstrictive disorders.
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Affiliation(s)
- Sebastian Barreto Ortiz
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Daijiro Hori
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland.,Division of Cardiac Surgery, Johns Hopkins University , Baltimore, Maryland
| | - Yohei Nomura
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland.,Division of Cardiac Surgery, Johns Hopkins University , Baltimore, Maryland
| | - Xin Yun
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Asthma and Allergy Center, Johns Hopkins University , Baltimore, Maryland
| | - Haiyang Jiang
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Asthma and Allergy Center, Johns Hopkins University , Baltimore, Maryland
| | - Hwanmee Yong
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health , Baltimore, Maryland
| | - James Chen
- Department of Biomedical Engineering, Johns Hopkins University , Baltimore, Maryland
| | - Sam Paek
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health , Baltimore, Maryland
| | - Deepesh Pandey
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Gautam Sikka
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Anil Bhatta
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Andrew Gillard
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Jochen Steppan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Jae Hyung Kim
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Hideo Adachi
- Department of Cardiovascular Surgery, Saitama Medical Center, Jichi Medical University, Shimotsuke, Japan
| | - Viachaslau M Barodka
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland
| | - Lewis Romer
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland.,Department of Biomedical Engineering, Johns Hopkins University , Baltimore, Maryland.,Departments of Cell Biology, Pediatrics, and the Center for Cell Dynamics, Johns Hopkins University , Baltimore, Maryland
| | - Steven S An
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health , Baltimore, Maryland
| | - Larissa A Shimoda
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Asthma and Allergy Center, Johns Hopkins University , Baltimore, Maryland
| | - Lakshmi Santhanam
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland.,Department of Biomedical Engineering, Johns Hopkins University , Baltimore, Maryland
| | - Dan E Berkowitz
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University , Baltimore, Maryland.,Department of Biomedical Engineering, Johns Hopkins University , Baltimore, Maryland
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36
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Kim D, Woo JA, Geffken E, An SS, Liggett SB. Coupling of Airway Smooth Muscle Bitter Taste Receptors to Intracellular Signaling and Relaxation Is via G αi1,2,3. Am J Respir Cell Mol Biol 2017; 56:762-771. [PMID: 28145731 DOI: 10.1165/rcmb.2016-0373oc] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Bitter taste receptors (TAS2Rs) are expressed on human airway smooth muscle (HASM) and evoke marked relaxation. Agonist interaction with TAS2Rs activates phospholipase C and increases compartmentalized intracellular Ca2+ ([Ca2+]i) via inositol 1,4,5 triphosphate. In taste cells, the G protein gustducin couples TAS2R to phospholipase C; however, we find very low levels of Gαgust mRNA or protein in HASM. We hypothesized that another G protein in HASM transmits TAS2R function. TAS2R signaling to [Ca2+]i, extracellular signal-regulated kinase (ERK) 1/2, and physiologic relaxation was sensitive to pertussis toxin, confirming a role for a member of the Gi family. α subunit expression in HASM was Gαi2 > Gαi1 = Gαi3 > Gαtrans1 ≈ Gαtrans2, with Gαgust and Gαo at the limits of detection (>100-fold lower than Gαi2). Small interfering RNA knockdowns in HASM showed losses of [Ca2+]i and ERK1/2 signaling when Gαi1, Gαi2, or Gαi3 were reduced. Gαtrans1 and Gαtrans2 knockdowns had no effect on [Ca2+]i and a minimal, transient effect on ERK1/2 phosphorylation. Furthermore, Gαgust and Gαo knockdowns did not affect any TAS2R signaling. In overexpression experiments in human embryonic kidney-293T cells, we confirmed an agonist-dependent physical interaction between TAS2R14 and Gαi2. ASM cells from transgenic mice expressing a peptide inhibitor of Gαi2 had attenuated relaxation to TAS2R agonist. These data indicate that, unlike in taste cells, TAS2Rs couple to the prevalent G proteins, Gαi1, Gαi2, and Gαi3, with no evidence for functional coupling to Gαgust. This absence of function for the "canonical" TAS2R G protein in HASM may be due to the very low expression of Gαgust, indicating that TAS2Rs can optionally couple to several G proteins in a cell type-dependent manner contingent upon G protein expression.
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Affiliation(s)
- Donghwa Kim
- 1 Department of Medicine and the Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, Tampa, Florida
| | - Jung A Woo
- 1 Department of Medicine and the Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, Tampa, Florida
| | - Ezekiel Geffken
- 2 Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; and
| | - Steven S An
- 2 Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; and
| | - Stephen B Liggett
- 3 Departments of Internal Medicine and Molecular Pharmacology and Physiology, and the Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, Tampa, Florida
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37
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Mikami M, Zhang Y, Danielsson J, Joell T, Yong HM, Townsend E, Khurana S, An SS, Emala CW. Impaired Relaxation of Airway Smooth Muscle in Mice Lacking the Actin-Binding Protein Gelsolin. Am J Respir Cell Mol Biol 2017; 56:628-636. [PMID: 28118027 DOI: 10.1165/rcmb.2016-0292oc] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Diverse classes of ligands have recently been discovered that relax airway smooth muscle (ASM) despite a transient increase in intracellular calcium concentrations ([Ca2+]i). However, the cellular mechanisms are not well understood. Gelsolin is a calcium-activated actin-severing and -capping protein found in many cell types, including ASM cells. Gelsolin also binds to phosphatidylinositol 4,5-bisphosphate, making this substrate less available for phospholipase Cβ-mediated hydrolysis to inositol triphosphate and diacylglycerol. We hypothesized that gelsolin plays a critical role in ASM relaxation and mechanistically accounts for relaxation by ligands that transiently increase [Ca2+]i. Isolated tracheal rings from gelsolin knockout (KO) mice showed impaired relaxation to both a β-agonist and chloroquine, a bitter taste receptor agonist, which relaxes ASM, despite inducing transiently increased [Ca2+]i. A single inhalation of methacholine increased lung resistance to a similar extent in wild-type and gelsolin KO mice, but the subsequent spontaneous relaxation was less in gelsolin KO mice. In ASM cells derived from gelsolin KO mice, serotonin-induced Gq-coupled activation increased both [Ca2+]i and inositol triphosphate synthesis to a greater extent compared to cells from wild-type mice, possibly due to the absence of gelsolin binding to phosphatidylinositol 4,5-bisphosphate. Single-cell analysis showed higher filamentous:globular actin ratio at baseline and slower cytoskeletal remodeling dynamics in gelsolin KO cells. Gelsolin KO ASM cells also showed an attenuated decrease in cell stiffness to chloroquine and flufenamic acid. These findings suggest that gelsolin plays a critical role in ASM relaxation and that activation of gelsolin may contribute to relaxation induced by ligands that relax ASM despite a transient increase in [Ca2+]i.
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Affiliation(s)
- Maya Mikami
- 1 Department of Anesthesiology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Yi Zhang
- 1 Department of Anesthesiology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Jennifer Danielsson
- 1 Department of Anesthesiology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Tiarra Joell
- 2 Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Hwan Mee Yong
- 2 Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Elizabeth Townsend
- 1 Department of Anesthesiology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Seema Khurana
- 3 Department of Biology and Biochemistry, University of Houston, Baylor College of Medicine, Houston, Texas; and
| | - Steven S An
- 2 Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.,4 Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Charles W Emala
- 1 Department of Anesthesiology, College of Physicians and Surgeons, Columbia University, New York, New York
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38
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Haffner MC, Esopi DM, Chaux A, Gürel M, Ghosh S, Vaghasia AM, Tsai H, Kim K, Castagna N, Lam H, Hicks J, Wyhs N, Biswal Shinohara D, Hurley PJ, Simons BW, Schaeffer EM, Lotan TL, Isaacs WB, Netto GJ, De Marzo AM, Nelson WG, An SS, Yegnasubramanian S. AIM1 is an actin-binding protein that suppresses cell migration and micrometastatic dissemination. Nat Commun 2017; 8:142. [PMID: 28747635 PMCID: PMC5529512 DOI: 10.1038/s41467-017-00084-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 06/01/2017] [Indexed: 01/05/2023] Open
Abstract
A defining hallmark of primary and metastatic cancers is the migration and invasion of malignant cells. These invasive properties involve altered dynamics of the cytoskeleton and one of its major structural components β-actin. Here we identify AIM1 (absent in melanoma 1) as an actin-binding protein that suppresses pro-invasive properties in benign prostate epithelium. Depletion of AIM1 in prostate epithelial cells increases cytoskeletal remodeling, intracellular traction forces, cell migration and invasion, and anchorage-independent growth. In addition, decreased AIM1 expression results in increased metastatic dissemination in vivo. AIM1 strongly associates with the actin cytoskeleton in prostate epithelial cells in normal tissues, but not in prostate cancers. In addition to a mislocalization of AIM1 from the actin cytoskeleton in invasive cancers, advanced prostate cancers often harbor AIM1 deletion and reduced expression. These findings implicate AIM1 as a key suppressor of invasive phenotypes that becomes dysregulated in primary and metastatic prostate cancer. Invasion of malignant cells involves changes in cytoskeleton dynamics. Here the authors identify absent in melanoma 1 as an actin binding protein and show that it regulates cytoskeletal remodeling and cell migration in prostate epithelial cells, acting as a metastatic suppressor in cancer cells.
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Affiliation(s)
- Michael C Haffner
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - David M Esopi
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Alcides Chaux
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA.,Office of Scientific Research, Norte University, Asunción,, Paraguay
| | - Meltem Gürel
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Susmita Ghosh
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - Ajay M Vaghasia
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Harrison Tsai
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - Kunhwa Kim
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Nicole Castagna
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Hong Lam
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Jessica Hicks
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - Nicolas Wyhs
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | | | - Paula J Hurley
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Brady Urological Institute, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Brian W Simons
- Brady Urological Institute, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Edward M Schaeffer
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Department of Pathology, Johns Hopkins University, Baltimore, MD, USA.,Brady Urological Institute, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Tamara L Lotan
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - William B Isaacs
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Brady Urological Institute, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - George J Netto
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Department of Pathology, Johns Hopkins University, Baltimore, MD, USA.,Brady Urological Institute, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Angelo M De Marzo
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Department of Pathology, Johns Hopkins University, Baltimore, MD, USA.,Brady Urological Institute, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - William G Nelson
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA.,Department of Pathology, Johns Hopkins University, Baltimore, MD, USA.,Brady Urological Institute, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Steven S An
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA.,Johns Hopkins Physical Sciences in Oncology Center, Johns Hopkins University, Baltimore, MD, USA
| | - Srinivasan Yegnasubramanian
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA. .,Department of Pathology, Johns Hopkins University, Baltimore, MD, USA. .,Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA. .,Brady Urological Institute, School of Medicine, Johns Hopkins University, Baltimore, MD, USA. .,Johns Hopkins Physical Sciences in Oncology Center, Johns Hopkins University, Baltimore, MD, USA.
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39
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Nishida K, Brune KA, Putcha N, Mandke P, O'Neal WK, Shade D, Srivastava V, Wang M, Lam H, An SS, Drummond MB, Hansel NN, Robinson DN, Sidhaye VK. Cigarette smoke disrupts monolayer integrity by altering epithelial cell-cell adhesion and cortical tension. Am J Physiol Lung Cell Mol Physiol 2017. [PMID: 28642260 DOI: 10.1152/ajplung.00074.2017] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality. Cigarette smoke (CS) drives disease development and progression. The epithelial barrier is damaged by CS with increased monolayer permeability. However, the molecular changes that cause this barrier disruption and the interaction between adhesion proteins and the cytoskeleton are not well defined. We hypothesized that CS alters monolayer integrity by increasing cell contractility and decreasing cell adhesion in epithelia. Normal human airway epithelial cells and primary COPD epithelial cells were exposed to air or CS, and changes measured in protein levels. We measured the cortical tension of individual cells and the stiffness of cells in a monolayer. We confirmed that the changes in acute and subacute in vitro smoke exposure reflect protein changes seen in cell monolayers and tissue sections from COPD patients. Epithelial cells exposed to repetitive CS and those derived from COPD patients have increased monolayer permeability. E-cadherin and β-catenin were reduced in smoke exposed cells as well as in lung tissue sections from patients with COPD. Moreover, repetitive CS caused increased tension in individual cells and cells in a monolayer, which corresponded with increased polymerized actin without changes in myosin IIA and IIB total abundance. Repetitive CS exposure impacts the adhesive intercellular junctions and the tension of epithelial cells by increased actin polymer levels, to further destabilize cell adhesion. Similar changes are seen in epithelial cells from COPD patients indicating that these findings likely contribute to COPD pathology.
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Affiliation(s)
- Kristine Nishida
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Kieran A Brune
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Nirupama Putcha
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Pooja Mandke
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Wanda K O'Neal
- Marsico Lung Institute, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Danny Shade
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Vasudha Srivastava
- Department of Cell Biology, School of Medicine, Johns Hopkins University, Baltimore, Maryland; and
| | - Menghan Wang
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Hong Lam
- Department of Environmental Health and Engineering, School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Steven S An
- Department of Environmental Health and Engineering, School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - M Bradley Drummond
- Marsico Lung Institute, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Nadia N Hansel
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Douglas N Robinson
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland.,Department of Cell Biology, School of Medicine, Johns Hopkins University, Baltimore, Maryland; and
| | - Venkataramana K Sidhaye
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland; .,Department of Environmental Health and Engineering, School of Public Health, Johns Hopkins University, Baltimore, Maryland
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40
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Malek R, Gajula RP, Williams RD, Nghiem B, Simons BW, Nugent K, Wang H, Taparra K, Lemtiri-Chlieh G, Yoon AR, True L, An SS, DeWeese TL, Ross AE, Schaeffer EM, Pienta KJ, Hurley PJ, Morrissey C, Tran PT. TWIST1-WDR5- Hottip Regulates Hoxa9 Chromatin to Facilitate Prostate Cancer Metastasis. Cancer Res 2017; 77:3181-3193. [PMID: 28484075 DOI: 10.1158/0008-5472.can-16-2797] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 03/03/2017] [Accepted: 04/19/2017] [Indexed: 12/22/2022]
Abstract
TWIST1 is a transcription factor critical for development that can promote prostate cancer metastasis. During embryonic development, TWIST1 and HOXA9 are coexpressed in mouse prostate and then silenced postnatally. Here we report that TWIST1 and HOXA9 coexpression are reactivated in mouse and human primary prostate tumors and are further enriched in human metastases, correlating with survival. TWIST1 formed a complex with WDR5 and the lncRNA Hottip/HOTTIP, members of the MLL/COMPASS-like H3K4 methylases, which regulate chromatin in the Hox/HOX cluster during development. TWIST1 overexpression led to coenrichment of TWIST1 and WDR5 as well as increased H3K4me3 chromatin at the Hoxa9/HOXA9 promoter, which was dependent on WDR5. Expression of WDR5 and Hottip/HOTTIP was also required for TWIST1-induced upregulation of HOXA9 and aggressive cellular phenotypes such as invasion and migration. Pharmacologic inhibition of HOXA9 prevented TWIST1-induced aggressive prostate cancer cellular phenotypes in vitro and metastasis in vivo This study demonstrates a novel mechanism by which TWIST1 regulates chromatin and gene expression by cooperating with the COMPASS-like complex to increase H3K4 trimethylation at target gene promoters. Our findings highlight a TWIST1-HOXA9 embryonic prostate developmental program that is reactivated during prostate cancer metastasis and is therapeutically targetable. Cancer Res; 77(12); 3181-93. ©2017 AACR.
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Affiliation(s)
- Reem Malek
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Rajendra P Gajula
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Russell D Williams
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Belinda Nghiem
- Department of Urology, University of Washington, Seattle, Washington
| | - Brian W Simons
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Katriana Nugent
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Hailun Wang
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kekoa Taparra
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Cellular and Molecular Medicine Program, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ghali Lemtiri-Chlieh
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Arum R Yoon
- Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland
| | - Lawrence True
- Department of Pathology, University of Washington, Seattle, Washington
| | - Steven S An
- Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland.,Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Theodore L DeWeese
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ashley E Ross
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Edward M Schaeffer
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kenneth J Pienta
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Cellular and Molecular Medicine Program, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Paula J Hurley
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Cellular and Molecular Medicine Program, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Colm Morrissey
- Department of Urology, University of Washington, Seattle, Washington
| | - Phuoc T Tran
- Department of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland. .,Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Cellular and Molecular Medicine Program, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
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41
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Singh J, Mohanty I, Addya S, Phillips B, Mee Yong H, An SS, Penn RB, Rattan S. Role of differentially expressed microRNA-139-5p in the regulation of phenotypic internal anal sphincter smooth muscle tone. Sci Rep 2017; 7:1477. [PMID: 28469189 PMCID: PMC5431208 DOI: 10.1038/s41598-017-01550-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 03/27/2017] [Indexed: 12/19/2022] Open
Abstract
The present study focused on the role of microRNA-139-5p (miRNA-139-5p) in the regulation of basal tone in internal anal sphincter (IAS). Applying genome-wide miRNA microarrays on the phenotypically distinct smooth muscle cells (SMCs) within the rat anorectrum, we identified miRNA-139-5p as differentially expressed RNA repressor with highest expression in the purely phasic smooth muscle of anococcygeus (ASM) vs. the truly tonic smooth muscle of IAS. This pattern of miRNA-139-5p expression, previously shown to target ROCK2, was validated by target prediction using ingenuity pathway (IPA) and by qPCR analyses. Immunoblotting, immunocytochemistry (ICC), and functional assays using IAS tissues and cells subjected to overexpression/knockdown of miRNA-139-5p confirmed the inverse relationship between miRNA-139-5p and ROCK2 expressions/IAS tone. Overexpression of miRNA-139-5p caused a decrease, while knockdown by anti-miRNA-139-5p caused an increase in the IAS tone; these tissue contractile responses were confirmed by single-cell contraction using magnetic twisting cytometry (MTC). These findings suggest miRNA-139-5p is capable of significantly influencing the phenotypic tonicity in smooth muscle via ROCK2: a lack of tone in ASM may be associated with the suppression of ROCK2 by high expression of miRNA-139-5p, whereas basal IAS tone may be associated with the persistence of ROCK2 due to low expression of miRNA-139-5p.
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Affiliation(s)
- Jagmohan Singh
- Department of Medicine, Division of Gastroenterology & Hepatology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, USA
| | - Ipsita Mohanty
- Department of Medicine, Division of Gastroenterology & Hepatology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, USA
| | - Sankar Addya
- Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Benjamin Phillips
- Department of Surgery, Division of Colorectal Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Hwan Mee Yong
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Steven S An
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Raymond B Penn
- Center for Translational Medicine (RP), Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Satish Rattan
- Department of Medicine, Division of Gastroenterology & Hepatology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, USA.
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42
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An SS, Liggett SB. Taste and smell GPCRs in the lung: Evidence for a previously unrecognized widespread chemosensory system. Cell Signal 2017; 41:82-88. [PMID: 28167233 DOI: 10.1016/j.cellsig.2017.02.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 02/02/2017] [Indexed: 12/13/2022]
Abstract
Taste and smell receptor expression has been traditionally limited to the tongue and nose. We have identified bitter taste receptors (TAS2Rs) and olfactory receptors (ORs) on human airway smooth muscle (HASM) cells. TAS2Rs signal to PLCβ evoking an increase in [Ca2+]i causing membrane hyperpolarization and marked HASM relaxation ascertained by single cell, ex vivo, and in vivo methods. The presence of TAS2Rs in the lung was unexpected, as was the bronchodilatory function which has been shown to be due to signaling within specific microdomains of the cell. Unlike β2-adrenergic receptor-mediated bronchodilation, TAS2R function is not impaired in asthma and shows little tachyphylaxis. HASM ORs do not bronchodilate, but rather modulate cytoskeletal remodeling and hyperplasia, two cardinal features of asthma. We have shown that short chain fatty acids, byproducts of fermentation of polysaccharides by the gut microbiome, activate HASM ORs. This establishes a non-immune gut-lung mechanism that ties observations on gut microbial communities to asthma phenotypes. Subsequent studies by multiple investigators have revealed expression and specialized functions of TAS2Rs and ORs in multiple cell-types and organs throughout the body. Collectively, the data point towards a previously unrecognized chemosensory system which recognizes endogenous and exogenous agonists. These receptors and their ligands play roles in normal homeostatic functions, predisposition or adaptation to disease, and represent drug targets for novel therapeutics.
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Affiliation(s)
- Steven S An
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe Street, Baltimore, MD 21205, United States.
| | - Stephen B Liggett
- Department of Internal Medicine, Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, 12901 Bruce B. Downs Blvd., MDC 2, Tampa, FL 33612, United States; Department of Pharmacology and Physiology, Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, 12901 Bruce B. Downs Blvd., MDC 2, Tampa, FL 33612, United States.
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43
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Steppan J, Bergman Y, Viegas K, Armstrong D, Tan S, Wang H, Melucci S, Hori D, Park SY, Barreto SF, Isak A, Jandu S, Flavahan N, Butlin M, An SS, Avolio A, Berkowitz DE, Halushka MK, Santhanam L. Tissue Transglutaminase Modulates Vascular Stiffness and Function Through Crosslinking-Dependent and Crosslinking-Independent Functions. J Am Heart Assoc 2017; 6:JAHA.116.004161. [PMID: 28159817 PMCID: PMC5523743 DOI: 10.1161/jaha.116.004161] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background The structural elements of the vascular wall, namely, extracellular matrix and smooth muscle cells (SMCs), contribute to the overall stiffness of the vessel. In this study, we examined the crosslinking‐dependent and crosslinking‐independent roles of tissue transglutaminase (TG2) in vascular function and stiffness. Methods and Results SMCs were isolated from the aortae of TG2−/− and wild‐type (WT) mice. Cell adhesion was examined by using electrical cell–substrate impedance sensing and PicoGreen assay. Cell motility was examined using a Boyden chamber assay. Cell proliferation was examined by electrical cell–substrate impedance sensing and EdU incorporation assays. Cell micromechanics were studied using magnetic torsion cytometry and spontaneous nanobead tracer motions. Aortic mechanics were examined by tensile testing. Vasoreactivity was studied by wire myography. SMCs from TG2−/− mice had delayed adhesion, reduced motility, and accelerated de‐adhesion and proliferation rates compared with those from WT. TG2−/− SMCs were stiffer and displayed fewer cytoskeletal remodeling events than WT. Collagen assembly was delayed in TG2−/− SMCs and recovered with adenoviral transduction of TG2. Aortic rings from TG2−/− mice were less stiff than those from WT; stiffness was partly recovered by incubation with guinea pig liver TG2 independent of crosslinking function. TG2−/− rings showed augmented response to phenylephrine‐mediated vasoconstriction when compared with WT. In human coronary arteries, vascular media and plaque, high abundance of fibronectin expression, and colocalization with TG2 were observed. Conclusions TG2 modulates vascular function/tone by altering SMC contractility independent of its crosslinking function and contributes to vascular stiffness by regulating SMC proliferation and matrix remodeling.
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Affiliation(s)
- Jochen Steppan
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University, Baltimore, MD
| | - Yehudit Bergman
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University, Baltimore, MD
| | - Kayla Viegas
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia
| | - Dinani Armstrong
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University, Baltimore, MD
| | - Siqi Tan
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
| | - Huilei Wang
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD
| | - Sean Melucci
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
| | - Daijiro Hori
- Department of Surgery, Johns Hopkins University, Baltimore, MD
| | - Sung Yong Park
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University, Baltimore, MD.,Department of Anesthesiology, Yonsei University, Seoul, Korea
| | - Sebastian F Barreto
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University, Baltimore, MD
| | - Abraham Isak
- Department of Environmental Health Sciences, Johns Hopkins University, Baltimore, MD
| | - Sandeep Jandu
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University, Baltimore, MD
| | - Nicholas Flavahan
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University, Baltimore, MD
| | - Mark Butlin
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia
| | - Steven S An
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD.,Department of Environmental Health Sciences, Johns Hopkins University, Baltimore, MD
| | - Alberto Avolio
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia
| | - Dan E Berkowitz
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University, Baltimore, MD.,Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD
| | - Marc K Halushka
- Department of Pathology, Johns Hopkins University, Baltimore, MD
| | - Lakshmi Santhanam
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University, Baltimore, MD .,Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD
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Aisenberg WH, Huang J, Zhu W, Rajkumar P, Cruz R, Santhanam L, Natarajan N, Yong HM, De Santiago B, Oh JJ, Yoon AR, Panettieri RA, Homann O, Sullivan JK, Liggett SB, Pluznick JL, An SS. Defining an olfactory receptor function in airway smooth muscle cells. Sci Rep 2016; 6:38231. [PMID: 27905542 PMCID: PMC5131280 DOI: 10.1038/srep38231] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 11/07/2016] [Indexed: 12/27/2022] Open
Abstract
Pathways that control, or can be exploited to alter, the increase in airway smooth muscle (ASM) mass and cellular remodeling that occur in asthma are not well defined. Here we report the expression of odorant receptors (ORs) belonging to the superfamily of G-protein coupled receptors (GPCRs), as well as the canonical olfaction machinery (Golf and AC3) in the smooth muscle of human bronchi. In primary cultures of isolated human ASM, we identified mRNA expression for multiple ORs. Strikingly, OR51E2 was the most highly enriched OR transcript mapped to the human olfactome in lung-resident cells. In a heterologous expression system, OR51E2 trafficked readily to the cell surface and showed ligand selectivity and sensitivity to the short chain fatty acids (SCFAs) acetate and propionate. These endogenous metabolic byproducts of the gut microbiota slowed the rate of cytoskeletal remodeling, as well as the proliferation of human ASM cells. These cellular responses in vitro were found in ASM from non-asthmatics and asthmatics, and were absent in OR51E2-deleted primary human ASM. These results demonstrate a novel chemo-mechanical signaling network in the ASM and serve as a proof-of-concept that a specific receptor of the gut-lung axis can be targeted to treat airflow obstruction in asthma.
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Affiliation(s)
- William H Aisenberg
- Department of Physiology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Jessie Huang
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Wanqu Zhu
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Premraj Rajkumar
- Department of Physiology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Randy Cruz
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Lakshmi Santhanam
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Niranjana Natarajan
- Department of Physiology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Hwan Mee Yong
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Breann De Santiago
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Jung Jin Oh
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - A-Rum Yoon
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Reynold A Panettieri
- Institute for Translational Medicine and Science, Rutgers University, New Brunswick, NJ 08901, USA
| | - Oliver Homann
- Genome Analysis Unit, Amgen Inc., South San Francisco, CA 94080, USA
| | - John K Sullivan
- Department of Inflammation, Amgen Inc., Thousand Oaks, CA 91320, USA
| | - Stephen B Liggett
- Department of Internal Medicine and Molecular Pharmacology and Physiology, and the Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, Tampa, FL 33612, USA
| | - Jennifer L Pluznick
- Department of Physiology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Steven S An
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21205, USA.,Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan 689-798, Republic of Korea
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Aifuwa I, Giri A, Longe N, Lee SH, An SS, Wirtz D. Senescent stromal cells induce cancer cell migration via inhibition of RhoA/ROCK/myosin-based cell contractility. Oncotarget 2016; 6:30516-31. [PMID: 26483365 PMCID: PMC4741548 DOI: 10.18632/oncotarget.5854] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 08/29/2015] [Indexed: 12/13/2022] Open
Abstract
Cells induced into senescence exhibit a marked increase in the secretion of pro-inflammatory cytokines termed senescence-associated secretory phenotype (SASP). Here we report that SASP from senescent stromal fibroblasts promote spontaneous morphological changes accompanied by an aggressive migratory behavior in originally non-motile human breast cancer cells. This phenotypic switch is coordinated, in space and time, by a dramatic reorganization of the actin and microtubule filament networks, a discrete polarization of EB1 comets, and an unconventional front-to-back inversion of nucleus-MTOC polarity. SASP-induced morphological/migratory changes are critically dependent on microtubule integrity and dynamics, and are coordinated by the inhibition of RhoA and cell contractility. RhoA/ROCK inhibition reduces focal adhesions and traction forces, while promoting a novel gliding mode of migration.
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Affiliation(s)
- Ivie Aifuwa
- Johns Hopkins Physical Sciences - Oncology Center, The Johns Hopkins University, Baltimore, Maryland, USA.,Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Anjil Giri
- Johns Hopkins Physical Sciences - Oncology Center, The Johns Hopkins University, Baltimore, Maryland, USA.,Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Nick Longe
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Sang Hyuk Lee
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland, USA
| | - Steven S An
- Johns Hopkins Physical Sciences - Oncology Center, The Johns Hopkins University, Baltimore, Maryland, USA.,Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Denis Wirtz
- Johns Hopkins Physical Sciences - Oncology Center, The Johns Hopkins University, Baltimore, Maryland, USA.,Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland, USA.,Departments of Pathology and Oncology, Sydney Kimmel Comprehensive Cancer Center, The Johns Hopkins School of Medicine, Baltimore, Maryland, USA
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46
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Park J, Kim DH, Kim HN, Wang CJ, Kwak MK, Hur E, Suh KY, An SS, Levchenko A. Directed migration of cancer cells guided by the graded texture of the underlying matrix. Nat Mater 2016; 15:792-801. [PMID: 26974411 PMCID: PMC5517090 DOI: 10.1038/nmat4586] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 01/27/2016] [Indexed: 05/03/2023]
Abstract
Living cells and the extracellular matrix (ECM) can exhibit complex interactions that define key developmental, physiological and pathological processes. Here, we report a new type of directed migration-which we term 'topotaxis'-guided by the gradient of the nanoscale topographic features in the cells' ECM environment. We show that the direction of topotaxis is reflective of the effective cell stiffness, and that it depends on the balance of the ECM-triggered signalling pathways PI(3)K-Akt and ROCK-MLCK. In melanoma cancer cells, this balance can be altered by different ECM inputs, pharmacological perturbations or genetic alterations, particularly a loss of PTEN in aggressive melanoma cells. We conclude that topotaxis is a product of the material properties of cells and the surrounding ECM, and propose that the invasive capacity of many cancers may depend broadly on topotactic responses, providing a potentially attractive mechanism for controlling invasive and metastatic behaviour.
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Affiliation(s)
- JinSeok Park
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
- Yale Systems Biology Institute, Yale University, West Haven, CT 06516, USA
- Departments of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Deok-Ho Kim
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Hong-Nam Kim
- Department of Mechanical & Aerospace Engineering, Seoul National University, Seoul, Republic of Korea
| | - Chiaochun Joanne Wang
- Departments of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Moon Kyu Kwak
- Department of Mechanical & Aerospace Engineering, Seoul National University, Seoul, Republic of Korea
| | - Eunmi Hur
- Departments of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Kahp-Yang Suh
- Department of Mechanical & Aerospace Engineering, Seoul National University, Seoul, Republic of Korea
| | - Steven S. An
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA
- Physical Sciences-Oncology Center, Johns Hopkins University, Baltimore, MD 21218, USA
- To whom correspondence should be addressed: Steven S. An, Ph D. (), Andre Levchenko, Ph.D. ()
| | - Andre Levchenko
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
- Yale Systems Biology Institute, Yale University, West Haven, CT 06516, USA
- To whom correspondence should be addressed: Steven S. An, Ph D. (), Andre Levchenko, Ph.D. ()
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Liu J, Huang YL, Song L, Li CH, Zhao HL, Wang YM, An SS, Li ZF, Chen SH, Wang AX, Wu SL. [Association between long term systolic blood pressure variability index and cognitive function in middle-aged and elderly people]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:548-54. [PMID: 27346271 DOI: 10.3760/cma.j.issn.0253-3758.2016.06.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the association between different long term systolic blood pressure variability (SBPV) and cognitive function in middle-aged and elderly people. METHODS A total of 101 510 employees from the Tangshan Kailuan Group participated in the 2006-2007 annual physical examination, 5 440 cases were selected by simple randomly sampling method. After excluding participants who did not underwent 2012-2013 examination and without complete blood pressure and mini-mental state examination (MMSE) score, 3 002 participants (1 627 males, (50.86±9.93) years old) with integrated data were included into the study. The long term SBPV was calculated by standard deviation(SD), maximum-minimum difference(MMD), average real variability (ARV) of mean systolic blood pressure measured in 2006-2007, 2008-2009, 2010-2011 and 2012-2013. Participants were grouped by the quartile of the different SBPV index. Multiple linear regressions analysis was used to analyze the correlation between the long term SBPV and cognitive function status. RESULTS (1) The score of MMSE was 28.03±2.65. (2) The observation population was divided into four groups according to quartiles of different SBPV, respectively. The MMSE scores of SD<5.53 mmHg (1 mmHg=0.133 kPa)group, SD 5.53-8.90 mmHg group, SD 8.91-12.79 mmHg group and SD>12.79 mmHg group were 28.21±2.18, 28.26±3.09, 28.10±2.40 and 27.56±2.79, respectively(P<0.05). The MMSE scores of MMD<12.00 mmHg group, MMD 12.00-20.00 mmHg group, MMD 20.01-30.00 mmHg group and MMD>30.00 mmHg were 28.27±2.17, 28.25±3.09, 27.99±2.42 and 27.49±2.81, respectively(P<0.05). The MMSE scores of ARV<6.67 mmHg group, ARV 6.67-10.22 mmHg group, ARV 10.23-15.56 mmHg group and ARV>15.56 mmHg group were 28.27±2.20、28.28±3.20、28.00±2.42、27.57±2.65, respectively(P<0.05). (3) Adjusted for age, gender, baseline systolic blood pressure, body weight index, total cholesterol, fasting blood glucose, triglyceride, C reactive protein, smoke, drink, physical activity , the step-wise regressions analysis showed that SD(B=-0.129, P<0.05), MMD(B=-0.131, P<0.05), ARV(B=-0.125, P<0.05) had significant negative linear relationship with the MMSE score in the objects not taking the anti-hypertension drugs, and SD(B=-0.329, P<0.05), MMD(B=-0.314, P<0.05), but not ARV(B=-0.233, P>0.05), had significant negative linear relationship with the MMSE score in the objects taking the anti-hypertension drugs. CONCLUSION The long term SBPV indexes (SD, MMD, ARV ) are negatively correlated with the MMSE score in middle-aged and elderly people not taking the anti-hypertension drugs, and SD, MMD are negatively correlated with the MMSE score in people taking the anti-hypertension drugs. Clinical Trail Registry: Chinese Clinical Trail Registry, ChiCTRTNC-11001489.
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Affiliation(s)
- J Liu
- Department of Cardiology, Hospital Affiliated to North China University of Science and Technology, Tangshan 063000, China
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48
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Kim D, Pauer SH, Yong HM, An SS, Liggett SB. β2-Adrenergic Receptors Chaperone Trapped Bitter Taste Receptor 14 to the Cell Surface as a Heterodimer and Exert Unidirectional Desensitization of Taste Receptor Function. J Biol Chem 2016; 291:17616-28. [PMID: 27342779 PMCID: PMC5016158 DOI: 10.1074/jbc.m116.722736] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Indexed: 12/28/2022] Open
Abstract
Bitter taste receptors (TAS2Rs) are G-protein-coupled receptors now recognized to be expressed on extraoral cells, including airway smooth muscle (ASM) where they evoke relaxation. TAS2Rs are difficult to express in heterologous systems, with most receptors being trapped intracellularly. We find, however, that co-expression of β2-adrenergic receptors (β2AR) in HEK-293T routes TAS2R14 to the cell surface by forming receptor heterodimers. Cell surface TAS2R14 expression was increased by ∼5-fold when β2AR was co-expressed. Heterodimer formation was shown by co-immunoprecipitation with tagged receptors, biomolecular fluorescence complementation, and merged confocal images. The dynamic nature of this interaction was shown by: a gene-dose relationship between transfected β2AR and TAS2R14 expression, enhanced (up to 3-fold) TAS2R14 agonist stimulation of [Ca2+]i with β2AR co-transfection, ∼53% decrease in [Ca2+]i signaling with shRNA knockdown of β2AR in H292 cells, and ∼60% loss of [Ca2+]i responsiveness in βAR knock-out mouse ASM. Once expressed on the surface, we detected unidirectional, conformation-dependent, interaction within the heterodimer, with β2AR activation rapidly uncoupling TAS2R14 function (∼65% desensitization). Cross-talk was independent of β2AR internalization and cAMP/PKA, and not accompanied by TAS2R14 internalization. With prolonged β-agonist exposure, TAS2R14 internalized, consistent with slow recycling of naked TAS2R14 in the absence of the heterodimeric milieu. In studies of ASM mechanics, rapid cross-talk was confirmed at the physiologic level, where relaxation from TAS2R14 agonist was decreased by ∼50% with β-agonist co-treatment. Thus the β2AR acts as a double-edged sword: increasing TAS2R14 cell surface expression, but when activated by β-agonist, partially offsetting the expression phenotype by direct receptor:receptor desensitization of TAS2R14 function.
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Affiliation(s)
- Donghwa Kim
- From the Departments of Medicine and the Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, Tampa, Florida 33612 and
| | - Susan H Pauer
- the Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, Tampa, Florida 33612 and
| | - Hwan M Yong
- the Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Maryland 21205
| | - Steven S An
- the Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Maryland 21205
| | - Stephen B Liggett
- From the Departments of Medicine and the Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, Tampa, Florida 33612 and Molecular Pharmacology and Physiology, and
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Zheng XM, Li ZF, Wu YT, Zhao XH, Zhao HY, Jin C, Liu HM, Chen SH, An SS, Wang Y, Wu SL. [Influencing factors of orthostatism brachial-ankle pulse wave velocity and ankle brachial index in the elderly]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:161-9. [PMID: 26926511 DOI: 10.3760/cma.j.issn.0253-3758.2016.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the distribution and influencing factors of orthostatism brachial-ankle pulse wave velocity(baPWV) and ankle brachial index(ABI) in the elderly. METHODS Participants were selected with random sampling from ≥60 years old retired workers, who underwent 2010 to 2011 health check-up in the Tangshan Kailuan Hospital, Kailuan Linxi Hospital, Kailuan Zhaogezhuang Hospital. Multivariate linear regression analysis was used to analyze the influencing factors of orthostatism and supine baPWV and ABI in the elderly. RESULTS (1) A total of 2 464 participants were included, and 1 601 participants (1 065 males(66.5%) and (67.5±6.1) years old) with integral data were analyzed. Orthostatism baPWV was (3 885.4±1 503.5)cm/s and Supine baPWV was (1 761.2±371.4)cm/s.Orthostatism ABI was 1.54±0.21 and supine ABI was 1.10±0.12. Orthostatism baPWV increased with increasing age, while orthostatism ABI decreased with aging(trend test, both P<0.01)in <65, 65-69, 70-74, and ≥75 years old participants.(2) Multiple linear regression analysis showed that the age(β=0.19, P<0.01), lower limbs orthostatism systolic blood pressure(β=0.18, P<0.01), lower limbs supine systolic blood pressure (β=0.14, P<0.01), orthostatism heart rate (β=0.30, P<0.01), supine heart rate (β=0.23, P<0.01), body mass index (β=-0.18, P<0.01) were associated with orthostatism baPWV, and female(β=-0.055, P=0.01), upper limb orthostatism systolic blood pressure (β=-0.834, P<0.01), lower limbs orthostatism systolic blood pressure (β=0.708, P<0.01), lower limbs supine systolic blood pressure (β=0.099, P<0.01) and fasting blood glucose(β=-0.085, P<0.01) were associated with orthostatism ABI. CONCLUSIONS Orthostatism baPWV and ABI were significantly higher than those of supine's. Age, lower limbs orthostatism and supine systolic blood pressure, orthostatism and supine heart rate, body mass index were associated with orthostatism baPWV. Female, upper limb orthostatism systolic blood pressure, lower limbs orthostatism, supine systolic blood pressure and fasting blood glucose were associated with orthostatism ABI in the elderly.
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Affiliation(s)
- X M Zheng
- Department of Cardiology, Kailuan Hospital, North China University of Science and Technology, Tangshan 063000, China
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An SS, Mitzner W, Tang WY, Ahn K, Yoon AR, Huang J, Kilic O, Yong HM, Fahey JW, Kumar S, Biswal S, Holgate ST, Panettieri RA, Solway J, Liggett SB. An inflammation-independent contraction mechanophenotype of airway smooth muscle in asthma. J Allergy Clin Immunol 2016; 138:294-297.e4. [PMID: 26936804 DOI: 10.1016/j.jaci.2015.12.1315] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/19/2015] [Accepted: 12/11/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Steven S An
- Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Md; Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Md.
| | - Wayne Mitzner
- Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Md
| | - Wan-Yee Tang
- Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Md
| | | | - A-Rum Yoon
- Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Md
| | - Jessie Huang
- Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Md
| | - Onur Kilic
- Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Md
| | - Hwan Mee Yong
- Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Md
| | - Jed W Fahey
- Department of Pharmacology and Molecular Sciences, Cullman Chemoprotection Center, The Johns Hopkins University, School of Medicine, Baltimore, Md
| | - Sarvesh Kumar
- Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Md
| | - Shyam Biswal
- Department of Environmental Health Sciences, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, Md
| | - Stephen T Holgate
- School of Medicine, University of Southampton, Southampton, United Kingdom
| | - Reynold A Panettieri
- Division of Pulmonary, Allergy and Critical Care, Airways Biology Initiative, University of Pennsylvania Medical Center, Philadelphia, Pa
| | - Julian Solway
- Department of Medicine, University of Chicago, Chicago, Ill
| | - Stephen B Liggett
- Department of Internal Medicine and Molecular Pharmacology and Physiology, and the Center for Personalized Medicine and Genomics, University of South Florida Morsani College of Medicine, Tampa, Fla.
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