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Lee HS, Park HW. Role of diesel exhaust particle-induced cellular senescence in the development of asthma in young and old mice. Allergol Int 2024; 73:453-463. [PMID: 38350817 DOI: 10.1016/j.alit.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/03/2024] [Accepted: 01/10/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Although it has been reported that cellular senescence is important in the pathogenesis of asthma, the differential effects of diesel exhaust particle (DEP)-induced cellular senescence on the development of asthma according to age have not been thoroughly studied. METHODS We first confirmed that DEP induced cellular senescence in mouse lungs, and then that DEP-induced cellular senescence followed by intranasal instillation of a low-dose house dust mite (HDM) allergen resulted in murine asthma. Second, we examined age-dependent differential effects using 6-week-old (young) and 18-month-old mice (old), and tested whether the mammalian target of the rapamycin (mTOR) pathway plays an important role in this process. Finally, we performed in vitro experiments using human bronchial epithelial cells (HBEC) originating from young and elderly adults to identify the underlying mechanisms. RESULTS DEP induced cellular senescence in the airway epithelial cells of young and old mice characterized by increased senescence-associated beta-galactosidase, S100A8/9, and high mobility group box 1 (HMGB1) expressions. DEP-induced cellular senescence with subsequent exposure to a low-dose HDM allergen resulted in asthma in young and old mice. Rapamycin (mTOR pathway inhibitor) administration before DEP instillation significantly attenuated these asthmatic features. In addition, after treatment with a low-dose HDM allergen, S100A9 and HMGB1 over-expressed HBEC originating from young and elderly adults greatly activated co-cultured monocyte-derived dendritic cells (DCs). CONCLUSIONS This study showed that DEP-induced senescence made both young and old mice susceptible to allergic sensitization and resultant asthma development by enhancing DC activation. Public health efforts to reduce DEP exposure are warranted.
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Affiliation(s)
- Hyun Seung Lee
- Biomedical Research Institute, Seoul National University Hospital, Seoul, South Korea
| | - Heung-Woo Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
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Lee HY, Sim DW, Lee Y, Park SY, Lee SK, Lee H, Kim MH, Shim JS, Kang SY, Ban GY, Nam YH, Kim JH, Lee SY, Rhee CK, Song WJ, Kwon JW, Lee T, Kim SR, Park HW, Cho YS, Koh YI, Yoo KH, Lee BJ, Yoon HJ, Park HS, Kim SH. Characteristics of Severe Asthma in the Elderly: Observations From the Korean Severe Asthma Registry (KoSAR). ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2024; 16:267-278. [PMID: 38910284 PMCID: PMC11199154 DOI: 10.4168/aair.2024.16.3.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 01/09/2024] [Accepted: 01/26/2024] [Indexed: 06/25/2024]
Abstract
PURPOSE Few studies have compared the clinical characteristics of severe asthma (SA) in elderly patients compared to that in nonelderly patients. METHODS We analyzed data from the Korean SA Registry, a nationwide, real-world observational study of SA in Korea. The baseline clinical characteristics, disease control status, and medication use of the patients were compared between elderly (≥ 65 years) and nonelderly groups. RESULTS Of the 864 patients with SA, 260 (30.1%) were in the elderly group. The elderly group had lower atopy rate, but had higher prevalence of chronic obstructive pulmonary disease (COPD), hypertension, and osteoporosis than did the nonelderly group. The elderly group had a lower rate of type 2 inflammation and lower levels of forced expiratory volume in 1 second (FEV1) (% predicted) and FEV1/forced vital capacity ratio than did the nonelderly group (P < 0.05 for all). However, asthma symptom scores and the frequency of asthma exacerbation were not significantly different between the 2 groups. Of controller medications, biologics were less frequently used in the elderly group (P < 0.05 for all). CONCLUSIONS SA in the elderly is characterized by lower lung function, less type 2-low airway inflammation, and comorbidity with COPD. These findings are being taken into consideration in the management of elderly patients with SA in real-world clinical practice.
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Affiliation(s)
- Hwa Young Lee
- Division of Allergy, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Da Woon Sim
- Department of Allergy and Clinical Immunology, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Youngsoo Lee
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - So-Young Park
- Department of Internal Medicine, Chung-Ang University College of Medicine, Gwangmyeong, Korea
| | - Sun-Kyung Lee
- Department of Mathematics, College of Natural Sciences, Hanyang University, Seoul, Korea
| | - Hyun Lee
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Min-Hye Kim
- Department of Internal Medicine, Ewha Woman's University College of Medicine, Seoul, Korea
| | - Ji-Su Shim
- Department of Internal Medicine, Ewha Woman's University College of Medicine, Seoul, Korea
| | - Sung-Yoon Kang
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Ga-Young Ban
- Department of Pulmonary, Allergy and Critical Care Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Young-Hee Nam
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea
| | - Joo-Hee Kim
- Department of Internal Medicine, Hallym University College of Medicine, Anyang, Korea
| | - Sook Young Lee
- Division of Allergy, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chin Kook Rhee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Woo-Jung Song
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae-Woo Kwon
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Taehoon Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - So Ri Kim
- Division of Respiratory Medicine and Allergy, Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Heung-Woo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - You Sook Cho
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young-Il Koh
- Department of Allergy and Clinical Immunology, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Kwang-Ha Yoo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea
| | - Byung-Jae Lee
- Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ho Joo Yoon
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Hae-Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Sang-Heon Kim
- Division of Pulmonary Medicine and Allergy, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea.
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Ford ML, Ruwanpathirana A, Lewis BW, Britt RD. Aging-Related Mechanisms Contribute to Corticosteroid Insensitivity in Elderly Asthma. Int J Mol Sci 2023; 24:6347. [PMID: 37047327 PMCID: PMC10093993 DOI: 10.3390/ijms24076347] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 03/30/2023] Open
Abstract
Asthma in elderly populations is an increasing health problem that is accompanied by diminished lung function and frequent exacerbations. As potent anti-inflammatory drugs, corticosteroids are commonly used to reduce lung inflammation, improve lung function, and manage disease symptoms in asthma. Although effective for most individuals, older patients are more insensitive to corticosteroids, making it difficult to manage asthma in this population. With the number of individuals older than 65 continuing to increase, it is important to understand the distinct mechanisms that promote corticosteroid insensitivity in the aging lung. In this review, we discuss corticosteroid insensitivity in asthma with an emphasis on mechanisms that contribute to persistent inflammation and diminished lung function in older individuals.
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Affiliation(s)
- Maria L. Ford
- Center for Perinatal Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH 43215, USA; (M.L.F.); (A.R.)
- Biomedical Sciences Graduate Program, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Anushka Ruwanpathirana
- Center for Perinatal Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH 43215, USA; (M.L.F.); (A.R.)
- Biomedical Sciences Graduate Program, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Brandon W. Lewis
- Center for Perinatal Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH 43215, USA; (M.L.F.); (A.R.)
| | - Rodney D. Britt
- Center for Perinatal Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH 43215, USA; (M.L.F.); (A.R.)
- Department of Pediatrics, The Ohio State University, Columbus, OH 43205, USA
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