1
|
Wesselman HM, Nguyen TK, Chambers JM, Drummond BE, Wingert RA. Advances in Understanding the Genetic Mechanisms of Zebrafish Renal Multiciliated Cell Development. J Dev Biol 2022; 11:1. [PMID: 36648903 PMCID: PMC9844391 DOI: 10.3390/jdb11010001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/07/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Cilia are microtubule-based organelles that project from the cell surface. In humans and other vertebrates, possession of a single cilium structure enables an assortment of cellular processes ranging from mechanosensation to fluid propulsion and locomotion. Interestingly, cells can possess a single cilium or many more, where so-called multiciliated cells (MCCs) possess apical membrane complexes with several dozen or even hundreds of motile cilia that beat in a coordinated fashion. Development of MCCs is, therefore, integral to control fluid flow and/or cellular movement in various physiological processes. As such, MCC dysfunction is associated with numerous pathological states. Understanding MCC ontogeny can be used to address congenital birth defects as well as acquired disease conditions. Today, researchers used both in vitro and in vivo experimental models to address our knowledge gaps about MCC specification and differentiation. In this review, we summarize recent discoveries from our lab and others that have illuminated new insights regarding the genetic pathways that direct MCC ontogeny in the embryonic kidney using the power of the zebrafish animal model.
Collapse
Affiliation(s)
| | | | | | | | - Rebecca A. Wingert
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, IN 46556, USA
| |
Collapse
|
2
|
Liu C, Pang C, Chen DS, Wang J, Yi WQ, Yu N, Chen L. In vivo visualization and analysis of ciliary motion in allergic rhinitis models induced by ovalbumin. Exp Biol Med (Maywood) 2022; 247:1287-1297. [PMID: 35507096 PMCID: PMC9379601 DOI: 10.1177/15353702221088781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Due to the lack of an assessment approach, the image of in vivo nasal ciliary motion of allergic rhinitis (AR) has never been captured and analyzed to date. Here, we have used an optimized approach to analyze the nasal ciliary function in vivo in AR rats. The digital microscopy system, a method for direct observation of ciliary motion in a living AR rat model, was applied to visualize and measure ciliary motion in vivo, including ciliary beat frequency (CBF) and ciliary beat distance (CBD). The AR rat model was established by ovalbumin sensitization. Comparisons of nasal ciliary motion in vivo between the experimental group (ovalbumin sensitization, allergen, or histamine) and the control group were analyzed. In the living rat model of allergic rhinitis, CBF and CBD decreased to 57.8 and 73.1% of the control group, respectively, but were restored after administration of chlorpheniramine maleate. Ovalbumin (OVA) significantly inhibited the ciliary motion of normal mucosa in vivo. However, responding to the OVA challenge, the ciliary motion of OVA-sensitized mucosa would not decrease further and stay at a stable level. Histamine stimulated in vivo ciliary motion quickly within 30 min, but afterward, the ciliary motion gradually decreased below the baseline. These results have clarified that in vivo ciliary motion was impaired by nasal mucosal sensitization, and this impairment was most likely related to allergen challenge and histamine. In addition, the short-term stimulation and long-term inhibition effects of histamine on in vivo ciliary motion were first reported in this study.
Collapse
Affiliation(s)
- Chen Liu
- Senior Department of Otolaryngology-Head & Neck Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China,National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China,State Key Lab of Hearing Science, Ministry of Education, Beijing 100048, China,Beijing Key Lab of Hearing Impairment for Prevention and Treatment, Beijing 100048, China
| | - Chuan Pang
- Department of General Surgery, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Dai-shi Chen
- Department of Otorhinolaryngology, Shenzhen People’s Hospital, The Second Clinical Medical College, Jinan University and The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518020, China
| | - Jin Wang
- Senior Department of Otolaryngology-Head & Neck Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China,National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China,State Key Lab of Hearing Science, Ministry of Education, Beijing 100048, China,Beijing Key Lab of Hearing Impairment for Prevention and Treatment, Beijing 100048, China
| | - Wen-qi Yi
- Senior Department of Otolaryngology-Head & Neck Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China,National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China,State Key Lab of Hearing Science, Ministry of Education, Beijing 100048, China,Beijing Key Lab of Hearing Impairment for Prevention and Treatment, Beijing 100048, China
| | - Ning Yu
- Senior Department of Otolaryngology-Head & Neck Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China,National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China,State Key Lab of Hearing Science, Ministry of Education, Beijing 100048, China,Beijing Key Lab of Hearing Impairment for Prevention and Treatment, Beijing 100048, China
| | - Lei Chen
- Senior Department of Otolaryngology-Head & Neck Surgery, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China,National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China,State Key Lab of Hearing Science, Ministry of Education, Beijing 100048, China,Beijing Key Lab of Hearing Impairment for Prevention and Treatment, Beijing 100048, China,Lei Chen.
| |
Collapse
|
3
|
Sharma P, Penn RB. Can GPCRs Be Targeted to Control Inflammation in Asthma? ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1304:1-20. [PMID: 34019260 DOI: 10.1007/978-3-030-68748-9_1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Historically, the drugs used to manage obstructive lung diseases (OLDs), asthma, and chronic obstructive pulmonary disease (COPD) either (1) directly regulate airway contraction by blocking or relaxing airway smooth muscle (ASM) contraction or (2) indirectly regulate ASM contraction by inhibiting the principal cause of ASM contraction/bronchoconstriction and airway inflammation. To date, these tasks have been respectively assigned to two diverse drug types: agonists/antagonists of G protein-coupled receptors (GPCRs) and inhaled or systemic steroids. These two types of drugs "stay in their lane" with respect to their actions and consequently require the addition of the other drug to effectively manage both inflammation and bronchoconstriction in OLDs. Indeed, it has been speculated that safety issues historically associated with beta-agonist use (beta-agonists activate the beta-2-adrenoceptor (β2AR) on airway smooth muscle (ASM) to provide bronchoprotection/bronchorelaxation) are a function of pro-inflammatory actions of β2AR agonism. Recently, however, previously unappreciated roles of various GPCRs on ASM contractility and on airway inflammation have been elucidated, raising the possibility that novel GPCR ligands targeting these GPCRs can be developed as anti-inflammatory therapeutics. Moreover, we now know that many GPCRs can be "tuned" and not just turned "off" or "on" to specifically activate the beneficial therapeutic signaling a receptor can transduce while avoiding detrimental signaling. Thus, the fledging field of biased agonism pharmacology has the potential to turn the β2AR into an anti-inflammatory facilitator in asthma, possibly reducing or eliminating the need for steroids.
Collapse
Affiliation(s)
- Pawan Sharma
- Center for Translational Medicine, Division of Pulmonary, Allergy, & Critical Care Medicine Jane & Leonard Korman Respiratory Institute, Sidney Kimmel Medical College Thomas Jefferson University, Philadelphia, PA, USA
| | - Raymond B Penn
- Center for Translational Medicine, Division of Pulmonary, Allergy, & Critical Care Medicine Jane & Leonard Korman Respiratory Institute, Sidney Kimmel Medical College Thomas Jefferson University, Philadelphia, PA, USA.
| |
Collapse
|
4
|
Workman AD, Cohen NA. The effect of drugs and other compounds on the ciliary beat frequency of human respiratory epithelium. Am J Rhinol Allergy 2015; 28:454-64. [PMID: 25514481 DOI: 10.2500/ajra.2014.28.4092] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Cilia in the human respiratory tract play a critical role in clearing mucus and debris from the airways. Their function can be affected by a number of drugs or other substances, many of which alter ciliary beat frequency (CBF). This has implications for diseases of the respiratory tract and nasal drug delivery. This article is a systematic review of the literature that examines 229 substances and their effect on CBF. METHODS MEDLINE was the primary database used for data collection. Eligibility criteria based on experimental design were established, and 152 studies were ultimately selected. Each individual trial for the substances tested was noted whenever possible, including concentration, time course, specific effect on CBF, and source of tissue. RESULTS There was a high degree of heterogeneity between the various experiments examined in this article. Substances and their general effects (increase, no effect, decrease) were grouped into six categories: antimicrobials and antivirals, pharmacologics, human biological products, organisms and toxins, drug excipients, and natural compounds/other manipulations. CONCLUSION Organisms, toxins, and drug excipients tend to show a cilioinhibitory effect, whereas substances in all other categories had mixed effects. All studies examined were in vitro experiments, and application of the results in vivo is confounded by several factors. The data presented in this article should be useful in future respiratory research and examination of compounds for therapeutic and drug delivery purposes.
Collapse
Affiliation(s)
- Alan D Workman
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | |
Collapse
|
5
|
Uz U, Chen B, Palmer JN, Cingi C, Unlu H, Cohen NA. Effects of thymoquinone and montelukast on sinonasal ciliary beat frequency. Am J Rhinol Allergy 2015; 28:122-5. [PMID: 24717949 DOI: 10.2500/ajra.2014.28.4010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Herbal remedies predate written history and continue to be used more frequently than conventional pharmaceutical medications. Thymoquinone (TQ) is a traditional herb that has been used for its anti-inflammatory, antioxidant, and chemopreventive effects. Montelukast is a conventional medication used to treat allergic rhinitis and asthma. The aim of this research was to evaluate the effects of TQ and montelukast on human respiratory epithelium specifically addressing effects on cilia beat frequency (CBF). METHODS Well-differentiated human sinonasal epithelial cultures, grown at an air-liquid interface were treated with varying concentrations of TQ and montelukast. Changes in CBF were determined using the Sissons-Ammons Video Analysis system. RESULTS When applied to the basolateral surface, TQ showed a statistically significant dose-dependent increase in CBF with maximal stimulation at 30 minutes. Effects of montelukast on CBF showed both time and dose dependence with maximal stimulatory effect measured at 6 hours. CONCLUSION The results of our study indicate that TQ and montelukast have dose-dependent effects on CBF, extending their mechanism of action in respiratory diseases.
Collapse
Affiliation(s)
- Uzdan Uz
- Department of Otorhinolaryngology-Head and Neck Surgery, Yalvac Public Hospital, Isparta, Turkey
| | | | | | | | | | | |
Collapse
|
6
|
Lee MC, Kim DW, Kim DY, Rhee CS. The effect of histamine on ciliary beat frequency in the acute phase of allergic rhinitis. Am J Otolaryngol 2011; 32:517-21. [PMID: 21306788 DOI: 10.1016/j.amjoto.2010.11.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Revised: 10/21/2010] [Accepted: 11/19/2010] [Indexed: 10/18/2022]
Abstract
BACKGROUND There have been few studies about the effect of histamine on ciliary beat frequency (CBF) in the acute phase of allergic rhinitis. OBJECTIVE The present study was designed to investigate CBF in the acute phase of allergic rhinitis and the effect of histamine on CBF. MATERIALS AND METHODS Nasal septal mucosae were obtained from 13 mice that had been systemically immunized and locally challenged with ovalbumin (OVA) (group A), 11 OVA immunized and phosphate-buffered saline-challenged mice (group B), and 12 nontreated negative control mice (group C). The CBFs were observed within 20 minutes of local challenge with OVA. Ciliary beat frequencies were measured before and after treatment with 10(-5), 10(-3), and 10(-1) mol/L histamine and after administering antihistamine or Dulbecco's modified Eagle's medium to histamine-exposed mucosa. RESULTS The baseline CBF in group A was higher than in groups B and C. After treatment with 10(-1) mol/L histamine, CBF in all groups decreased to 0 within 5 to 7 minutes, whereas treatment with 10(-5) or 10(-3) mol/L histamine had no effect. The application of 100 μmol/L fexofenadine or Dulbecco's modified Eagle's medium solution restored histamine-induced ciliostasis to near baseline CBF after 10 minutes. CONCLUSIONS Ciliary beat frequency increased in the acute phase of a mouse model of allergic rhinitis. Physiologic concentrations of histamine had no effect on CBF, and thus, it appears that other mechanisms control CBF in the acute phase of allergic rhinitis.
Collapse
|
7
|
Peters T, Henry PJ. Protease-activated receptors and prostaglandins in inflammatory lung disease. Br J Pharmacol 2009; 158:1017-33. [PMID: 19845685 PMCID: PMC2785524 DOI: 10.1111/j.1476-5381.2009.00449.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2009] [Revised: 06/11/2009] [Accepted: 07/08/2009] [Indexed: 12/17/2022] Open
Abstract
Protease-activated receptors (PARs) are a novel family of G protein-coupled receptors. Signalling through PARs typically involves the cleavage of an extracellular region of the receptor by endogenous or exogenous proteases, which reveals a tethered ligand sequence capable of auto-activating the receptor. A considerable body of evidence has emerged over the past 20 years supporting a prominent role for PARs in a variety of human physiological and pathophysiological processes, and thus substantial attention has been directed towards developing drug-like molecules that activate or block PARs via non-proteolytic pathways. PARs are widely expressed within the respiratory tract, and their activation appears to exert significant modulatory influences on the level of bronchomotor tone, as well as on the inflammatory processes associated with a range of respiratory tract disorders. Nevertheless, there is debate as to whether the principal response to PAR activation is an augmentation or attenuation of airways inflammation. In this context, an important action of PAR activators may be to promote the generation and release of prostanoids, such as prostglandin E(2), which have well-established anti-inflammatory effects in the lung. In this review, we primarily focus on the relationship between PARs, prostaglandins and inflammatory processes in the lung, and highlight their potential role in selected respiratory tract disorders, including pulmonary fibrosis, asthma and chronic obstructive pulmonary disease.
Collapse
Affiliation(s)
- Terence Peters
- School of Medicine and Pharmacology, University of Western Australia, Nedlands, Australia
| | | |
Collapse
|
8
|
Abstract
Primary ciliary dyskinesia (PCD) is a heterogeneous group of conditions characterised by ultrastructural defects of the cilia, which result in impaired mucociliary clearance. Although the incidence of PCD is low, early recognition and prompt management are important in order to prevent unnecessary morbidity, the progression of bronchiectasis and the deterioration of lung function. As the underlying defect in PCD cannot be corrected, the mainstay of therapy remains effective clearance of airway secretions and antibiotic therapy of respiratory tract infections. This paper highlights new developments in the field that have implications for the future management of PCD. These include beta-adrenergic agonists, arginine, uridine-5'-triphosphate, hypertonic saline and recombinant human DNase. It is to be hoped that these treatment modalities will have a therapeutic role in PCD.
Collapse
Affiliation(s)
- Young Yoo
- Departmet of Pediatrics, Seoul National University Hospital, Seoul, Korea.
| | | |
Collapse
|
10
|
Gayner SM, McCaffrey TV. Muscarinic ciliostimulation requires endogenous prostaglandin production. AMERICAN JOURNAL OF RHINOLOGY 1998; 12:203-7. [PMID: 9653479 DOI: 10.2500/105065898781390190] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Prostaglandin E2 (PGE2) is a known modulator in upper airway ciliary activity and may be involved in the transduction of the muscarinic acetylcholine receptor signal. We studied the in vitro effects of muscarinic ciliostimulation on ciliary beat frequency (CBF) and PGE2 in human adenoid explants to determine whether PGE2 production is an essential step in the signal transduction mechanism. Methacholine applied to adenoid explants significantly increased ciliary beat frequency. This effect was blocked by the application of diclofenac, a cyclooxygenase inhibitor. Using radioimmunoassay, PGE2 production was measured during ciliostimulation with methacholine. Methacholine produced a significant increase in production in PGE2 during ciliostimulation. The roles of phospholipase C and phospholipase A2 in prostaglandin production were investigated by inhibiting these enzymes. D609, a phospholipase C inhibitor, significantly inhibited ciliary beat frequency increase and PGE2 production during methacholine stimulation. However, PACOCF3, a phospholipase A2 inhibitor, did not block ciliary beat frequency increase or PGE2 production in response to methacholine. These data show that phospholipase C is required for PGE2 production and ciliostimulation.
Collapse
Affiliation(s)
- S M Gayner
- Department of Otorhinolaryngology, Mayo Clinic, Rochester, MN 55905, USA
| | | |
Collapse
|