1
|
Trevizan-Bau P, Mazzone SB. Neuroimmune pathways regulating airway inflammation. Ann Allergy Asthma Immunol 2023; 131:550-560. [PMID: 37517657 DOI: 10.1016/j.anai.2023.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/24/2023] [Accepted: 07/20/2023] [Indexed: 08/01/2023]
Abstract
Airways diseases are typically accompanied by inflammation, which has long been known to contribute to obstruction, mucus hypersecretion, dyspnea, cough, and other characteristic symptoms displayed in patients. Clinical interventions, therefore, often target inflammation to reverse lung pathology and reduce morbidity. The airways and lungs are densely innervated by subsets of nerve fibers, which are not only impacted by pulmonary inflammation but, in addition, likely serve as important regulators of immune cell function. This bidirectional neuroimmune crosstalk is supported by close spatial relationships between immune cells and airway nerve fibers, complementary neural and immune signaling pathways, local specialized airway chemosensory cells, and dedicated reflex circuits. In this article, we review the recent literature on this topic and present state-of-the-art evidence supporting the role of neuroimmune interactions in airway inflammation. In addition, we extend this evidence to synthesize considerations for the clinical translation of these discoveries to improve the management of patients with airway disease.
Collapse
Affiliation(s)
- Pedro Trevizan-Bau
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, Victoria, Australia; Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Stuart B Mazzone
- Department of Anatomy and Physiology, University of Melbourne, Melbourne, Victoria, Australia.
| |
Collapse
|
2
|
Luo Y, Xiao JH. Inflammatory auxo-action in the stem cell division theory of cancer. PeerJ 2023; 11:e15444. [PMID: 37309372 PMCID: PMC10257902 DOI: 10.7717/peerj.15444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 05/01/2023] [Indexed: 06/14/2023] Open
Abstract
Acute inflammation is a beneficial response to the changes caused by pathogens or injuries that can eliminate the source of damage and restore homeostasis in damaged tissues. However, chronic inflammation causes malignant transformation and carcinogenic effects of cells through continuous exposure to pro-inflammatory cytokines and activation of inflammatory signaling pathways. According to the theory of stem cell division, the essential properties of stem cells, including long life span and self-renewal, make them vulnerable to accumulating genetic changes that can lead to cancer. Inflammation drives quiescent stem cells to enter the cell cycle and perform tissue repair functions. However, as cancer likely originates from DNA mutations that accumulate over time via normal stem cell division, inflammation may promote cancer development, even before the stem cells become cancerous. Numerous studies have reported that the mechanisms of inflammation in cancer formation and metastasis are diverse and complex; however, few studies have reviewed how inflammation affects cancer formation from the stem cell source. Based on the stem cell division theory of cancer, this review summarizes how inflammation affects normal stem cells, cancer stem cells, and cancer cells. We conclude that chronic inflammation leads to persistent stem cells activation, which can accumulate DNA damage and ultimately promote cancer. Additionally, inflammation not only facilitates the progression of stem cells into cancer cells, but also plays a positive role in cancer metastasis.
Collapse
Affiliation(s)
- Yi Luo
- Institute of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Zunyi Municipal Key Laboratory of Medicinal Biotechnology & Guizhou Provincial Research Center for Translational Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Jian-Hui Xiao
- Institute of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Zunyi Municipal Key Laboratory of Medicinal Biotechnology & Guizhou Provincial Research Center for Translational Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Gynaecology and Obstetrics, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| |
Collapse
|
3
|
Singh S, Dutta J, Ray A, Karmakar A, Mabalirajan U. Airway Epithelium: A Neglected but Crucial Cell Type in Asthma Pathobiology. Diagnostics (Basel) 2023; 13:diagnostics13040808. [PMID: 36832296 PMCID: PMC9955099 DOI: 10.3390/diagnostics13040808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/13/2023] [Accepted: 02/18/2023] [Indexed: 02/23/2023] Open
Abstract
The features of allergic asthma are believed to be mediated mostly through the Th2 immune response. In this Th2-dominant concept, the airway epithelium is presented as the helpless victim of Th2 cytokines. However, this Th2-dominant concept is inadequate to fill some of the vital knowledge gaps in asthma pathogenesis, like the poor correlation between airway inflammation and airway remodeling and severe asthma endotypes, including Th2-low asthma, therapy resistance, etc. Since the discovery of type 2 innate lymphoid cells in 2010, asthma researchers started believing in that the airway epithelium played a crucial role, as alarmins, which are the inducers of ILC2, are almost exclusively secreted by the airway epithelium. This underscores the eminence of airway epithelium in asthma pathogenesis. However, the airway epithelium has a bipartite functionality in sustaining healthy lung homeostasis and asthmatic lungs. On the one hand, the airway epithelium maintains lung homeostasis against environmental irritants/pollutants with the aid of its various armamentaria, including its chemosensory apparatus and detoxification system. Alternatively, it induces an ILC2-mediated type 2 immune response through alarmins to amplify the inflammatory response. However, the available evidence indicates that restoring epithelial health may attenuate asthmatic features. Thus, we conjecture that an epithelium-driven concept in asthma pathogenesis could fill most of the gaps in current asthma knowledge, and the incorporation of epithelial-protective agents to enhance the robustness of the epithelial barrier and the combative capacity of the airway epithelium against exogenous irritants/allergens may mitigate asthma incidence and severity, resulting in better asthma control.
Collapse
Affiliation(s)
- Sabita Singh
- Molecular Pathobiology of Respiratory Diseases, Cell Biology and Physiology Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata 700091, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Sector-19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | - Joytri Dutta
- Molecular Pathobiology of Respiratory Diseases, Cell Biology and Physiology Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata 700091, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Sector-19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | - Archita Ray
- Molecular Pathobiology of Respiratory Diseases, Cell Biology and Physiology Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata 700091, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Sector-19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | - Atmaja Karmakar
- Molecular Pathobiology of Respiratory Diseases, Cell Biology and Physiology Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata 700091, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Sector-19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | - Ulaganathan Mabalirajan
- Molecular Pathobiology of Respiratory Diseases, Cell Biology and Physiology Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata 700091, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Sector-19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
- Correspondence:
| |
Collapse
|
4
|
Brouns I, Adriaensen D, Timmermans JP. The pulmonary neuroepithelial body microenvironment represents an underestimated multimodal component in airway sensory pathways. Anat Rec (Hoboken) 2023. [PMID: 36808710 DOI: 10.1002/ar.25171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/13/2023] [Accepted: 01/19/2023] [Indexed: 02/22/2023]
Abstract
Exciting new imaging and molecular tools, combined with state-of-the-art genetically modified mouse models, have recently boosted interest in pulmonary (vagal) sensory pathway investigations. In addition to the identification of diverse sensory neuronal subtypes, visualization of intrapulmonary projection patterns attracted renewed attention on morphologically identified sensory receptor end-organs, such as the pulmonary neuroepithelial bodies (NEBs) that have been our area of expertise for the past four decades. The current review aims at providing an overview of the cellular and neuronal components of the pulmonary NEB microenvironment (NEB ME) in mice, underpinning the role of these complexly organized structures in the mechano- and chemosensory potential of airways and lungs. Interestingly, the pulmonary NEB ME additionally harbors different types of stem cells, and emerging evidence suggests that the signal transduction pathways that are active in the NEB ME during lung development and repair also determine the origin of small cell lung carcinoma. Although documented for many years that NEBs appear to be affected in several pulmonary diseases, the current intriguing knowledge on the NEB ME seems to encourage researchers that are new to the field to explore the possibility that these versatile sensor-effector units may be involved in lung pathogenesis or pathobiology.
Collapse
Affiliation(s)
- Inge Brouns
- Laboratory of Cell Biology and Histology (CBH), Department of Veterinary Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Dirk Adriaensen
- Laboratory of Cell Biology and Histology (CBH), Department of Veterinary Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Jean-Pierre Timmermans
- Laboratory of Cell Biology and Histology (CBH), Department of Veterinary Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
- Antwerp Centre for Advanced Microscopy (ACAM), University of Antwerp, Antwerp, Belgium
| |
Collapse
|
5
|
Liu D, Xu C, Jiang L, Zhu X. Pulmonary endogenous progenitor stem cell subpopulation: Physiology, pathogenesis, and progress. JOURNAL OF INTENSIVE MEDICINE 2023; 3:38-51. [PMID: 36789358 PMCID: PMC9924023 DOI: 10.1016/j.jointm.2022.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/09/2022] [Accepted: 08/13/2022] [Indexed: 06/18/2023]
Abstract
Lungs are structurally and functionally complex organs consisting of diverse cell types from the proximal to distal axis. They have direct contact with the external environment and are constantly at risk of various injuries. Capable to proliferate and differentiate, pulmonary endogenous progenitor stem cells contribute to the maintenance of lung structure and function both under homeostasis and following injuries. Discovering candidate pulmonary endogenous progenitor stem cell types and underlying regenerative mechanisms provide insights into therapeutic strategy development for lung diseases. In this review, we reveal their compositions, roles in lung disease pathogenesis and injury repair, and the underlying mechanisms. We further underline the advanced progress in research approach and potential therapy for lung regeneration. We also demonstrate the feasibility and prospects of pulmonary endogenous stem cell transplantation for lung disease treatment.
Collapse
Affiliation(s)
- Di Liu
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Chufan Xu
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Lai Jiang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Xiaoyan Zhu
- Department of Physiology, Navy Medical University, 800 Xiangyin Road, Shanghai 200433, China
| |
Collapse
|
6
|
Tassi V, Scarnecchia E, Ferolla P, Mete O, Manjula M, Allison F, Potenza R, Vannucci J, Ceccarelli S, Yasufuku K, De Perrot M, Pierre A, Darling G, Colella R, Ascani S, Mattioli S, Keshavjee S, Waddell TK, Puma F, Daddi N. Prognostic Significance of Pulmonary Multifocal Neuroendocrine Proliferation With Typical Carcinoid. Ann Thorac Surg 2022; 113:966-974. [PMID: 33831394 DOI: 10.1016/j.athoracsur.2021.03.069] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 03/08/2021] [Accepted: 03/11/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND The clinical significance of multifocal pulmonary neuroendocrine proliferation (MNEP), including tumorlets and pulmonary neuroendocrine cell hyperplasia, in association with typical carcinoid (TC), is still debated. METHODS We evaluated a retrospective series of TC with long-term follow-up data prospectively collected from 2 institutions and compared the outcome between TC alone and MNEP plus TC. Several baseline covariates were imbalanced between the MNEP plus TC and TC groups; therefore, we conducted 1:1 propensity score matching and inverse probability of treatment weighting in the full sample. In the matched group, the association of clinical, respiratory, and work-related factors with the group was determined through univariable and multivariable conditional logistic regression analysis. RESULTS A total of 234 TC patients underwent surgery: 41 MNEP plus TC (17.5%) and 193 TC alone (82.5%). In the MNEP plus TC group, older age (P < .001), peripheral tumors (P = .0032), smaller tumor size (P = .011), and lymph node spread (P = .02) were observed compared with the TC group. Relapses occurred in 8 patients in the MNEP plus TC group (19.5%) and 7 in the TC group (3.6%). After matching, in 36 pairs of patients, a significantly higher 5-year progression-free rate was observed for the TC group (P < .01). Similar results were observed using inverse probability of treatment weighting in the full sample. The odds of being in the MNEP plus TC group was higher for those with work-related exposure to inhalant agents (P = .008), asthma or bronchitis (P = .002), emphysema, fibrosis, and inflammatory status (P = .032), or micronodules on the chest computed tomography scan and respiratory insufficiency (P = .036). CONCLUSIONS The association with MNEP seems to represent a clinically and prognostic relevant factor in TC. Hence, careful preoperative workup, systematic pathologic evaluation, including nontumorous lung parenchyma, and long-term postoperative follow-up should be recommended in these patients.
Collapse
Affiliation(s)
- Valentina Tassi
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Elisa Scarnecchia
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Piero Ferolla
- Multidisciplinary NET Group, Umbria Regional Cancer Network and University of Perugia, Perugia, Italy
| | - Ozgur Mete
- Department of Pathology, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Canada
| | - Maganti Manjula
- Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Canada
| | - Frances Allison
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Rossella Potenza
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Jacopo Vannucci
- Thoracic Surgery Unit, Department of Surgical and Biomedical Sciences, University of Perugia, Perugia, Italy
| | - Silvia Ceccarelli
- Thoracic Surgery Unit, Department of Surgical and Biomedical Sciences, University of Perugia, Perugia, Italy
| | - Kazuhiro Yasufuku
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Marc De Perrot
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Andrew Pierre
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Gail Darling
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Renato Colella
- Pathology Unit, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Stefano Ascani
- Pathology Unit, Department of Medicine, Medical Clinic Section and Anatomical Pathology, Terni, Italy
| | - Sandro Mattioli
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Shaf Keshavjee
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Thomas Kenneth Waddell
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Francesco Puma
- Thoracic Surgery Unit, Department of Surgical and Biomedical Sciences, University of Perugia, Perugia, Italy
| | - Niccolò Daddi
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
| |
Collapse
|
7
|
Brouns I, Verckist L, Pintelon I, Timmermans JP, Adriaensen D. Pulmonary Sensory Receptors. ADVANCES IN ANATOMY EMBRYOLOGY AND CELL BIOLOGY 2021; 233:1-65. [PMID: 33950466 DOI: 10.1007/978-3-030-65817-5_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Inge Brouns
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Antwerpen (Wilrijk), Belgium.
| | - Line Verckist
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Antwerpen (Wilrijk), Belgium
| | - Isabel Pintelon
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Antwerpen (Wilrijk), Belgium
| | - Jean-Pierre Timmermans
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Antwerpen (Wilrijk), Belgium
| | - Dirk Adriaensen
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Antwerpen (Wilrijk), Belgium
| |
Collapse
|
8
|
Functional Exploration of the Pulmonary NEB ME. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2021; 233:31-67. [PMID: 33950469 DOI: 10.1007/978-3-030-65817-5_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
9
|
Noguchi M, Furukawa KT, Morimoto M. Pulmonary neuroendocrine cells: physiology, tissue homeostasis and disease. Dis Model Mech 2020; 13:13/12/dmm046920. [PMID: 33355253 PMCID: PMC7774893 DOI: 10.1242/dmm.046920] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Mammalian lungs have the ability to recognize external environments by sensing different compounds in inhaled air. Pulmonary neuroendocrine cells (PNECs) are rare, multi-functional epithelial cells currently garnering attention as intrapulmonary sensors; PNECs can detect hypoxic conditions through chemoreception. Because PNEC overactivation has been reported in patients suffering from respiratory diseases – such as asthma, chronic obstructive pulmonary disease, bronchopulmonary dysplasia and other congenital diseases – an improved understanding of the fundamental characteristics of PNECs is becoming crucial in pulmonary biology and pathology. During the past decade, murine genetics and disease models revealed the involvement of PNECs in lung ventilation dynamics, mechanosensing and the type 2 immune responses. Single-cell RNA sequencing further unveiled heterogeneous gene expression profiles in the PNEC population and revealed that a small number of PNECs undergo reprogramming during regeneration. Aberrant large clusters of PNECs have been observed in neuroendocrine tumors, including small-cell lung cancer (SCLC). Modern innovation of imaging analyses has enabled the discovery of dynamic migratory behaviors of PNECs during airway development, perhaps relating to SCLC malignancy. This Review summarizes the findings from research on PNECs, along with novel knowledge about their function. In addition, it thoroughly addresses the relevant questions concerning the molecular pathology of pulmonary diseases and related therapeutic approaches. Summary: This Review highlights the physiological relevance of pulmonary neuroendocrine cells, rare airway epithelial cells that form intrapulmonary sensory organs, abnormalities of which are associated with several pulmonary disorders, such as asthma and lung cancer.
Collapse
Affiliation(s)
- Masafumi Noguchi
- Laboratory for Lung Development and Regeneration, RIKEN Centre for Biosystems Dynamics Research, Kobe 650-0047, Japan.,Department of Biology, University of Padova, Via U. Bassi 58B, 35121 Padova, Italy; Veneto Institute of Molecular Medicine, Via Orus 2, 35129 Padova, Italy
| | - Kana T Furukawa
- Laboratory for Lung Development and Regeneration, RIKEN Centre for Biosystems Dynamics Research, Kobe 650-0047, Japan
| | - Mitsuru Morimoto
- Laboratory for Lung Development and Regeneration, RIKEN Centre for Biosystems Dynamics Research, Kobe 650-0047, Japan
| |
Collapse
|
10
|
Verckist L, Brouns I, Pintelon I, Timmermans J, Adriaensen D. Acute Lung Inflammation Induces Differential Gene Expression Changes in the Airway Stem Cell Niche of the Neuroepithelial Body Microenvironment. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.734.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Line Verckist
- Laboratory of Cell Biology and HistologyDepartment of Veterinary SciencesUniversity of AntwerpWilrijkBelgium
| | - Inge Brouns
- Laboratory of Cell Biology and HistologyDepartment of Veterinary SciencesUniversity of AntwerpWilrijkBelgium
| | - Isabel Pintelon
- Laboratory of Cell Biology and HistologyDepartment of Veterinary SciencesUniversity of AntwerpWilrijkBelgium
| | - Jean‐Pierre Timmermans
- Laboratory of Cell Biology and HistologyDepartment of Veterinary SciencesUniversity of AntwerpWilrijkBelgium
| | - Dirk Adriaensen
- Laboratory of Cell Biology and HistologyDepartment of Veterinary SciencesUniversity of AntwerpWilrijkBelgium
| |
Collapse
|