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Dai R, Xiang Y, Fang R, Zheng HH, Zhao QS, Wang Y. Lonicerin alleviates ovalbumin-induced asthma of mice via inhibiting enhancer of zeste homolog 2/nuclear factor-kappa B signaling pathway. Exp Anim 2024; 73:154-161. [PMID: 37952975 PMCID: PMC11091354 DOI: 10.1538/expanim.23-0068] [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: 05/26/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023] Open
Abstract
Asthma is the most common chronic disease in the respiratory system of children caused by abnormal immunity that responses to common antigens. Lonicerin exerts anti-inflammatory activity in other inflammatory models through targeting enhancer of zeste homolog 2 (EZH2) that is related to asthma. We sought to explore the role and mechanism of lonicerin in regulating allergic airway inflammation. Mice were intraperitoneally injected 10 µg ovalbumin (OVA) on postnatal day 5 (P5) and P10, and then inhaled 3% aerosolized OVA for 10 min every day on P18-20, to establish asthmatic mice model. Lonicerin (10 or 30 mg/kg) was given to mice by intragastric administration on P16-P20. Notably, the administration of lonicerin amended infiltration of inflammatory cells and mucus hypersecretion. OVA-specific IgE level, inflammatory cell count and inflammatory cytokines in asthmatic mice were reduced after lonicerin treatment. Moreover, it suppressed the activity of EZH2 and activation of nuclear factor-kappa B (NF-κB) as evidenced by decreasing tri-methylation of histone H3 at lysine 27 and reducing nuclear translocation of NF-κB p65. In a word, Lonicerin may attenuate asthma by inhibiting EZH2/NF-κB signaling pathway.
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Affiliation(s)
- Rui Dai
- Department of Pediatrics, The Second Affiliated Hospital of Anhui Medical University, No. 678, Furong Road, Hefei 230601, Anhui, P.R. China
| | - Yun Xiang
- Department of Pediatrics, The Second Affiliated Hospital of Anhui Medical University, No. 678, Furong Road, Hefei 230601, Anhui, P.R. China
| | - Rui Fang
- Department of Pediatrics, The Second Affiliated Hospital of Anhui Medical University, No. 678, Furong Road, Hefei 230601, Anhui, P.R. China
| | - Hai-Han Zheng
- Department of Pediatrics, The Second Affiliated Hospital of Anhui Medical University, No. 678, Furong Road, Hefei 230601, Anhui, P.R. China
| | - Qing-Song Zhao
- Department of Pediatrics, The Second Affiliated Hospital of Anhui Medical University, No. 678, Furong Road, Hefei 230601, Anhui, P.R. China
| | - Yan Wang
- Department of Pediatrics, The Second Affiliated Hospital of Anhui Medical University, No. 678, Furong Road, Hefei 230601, Anhui, P.R. China
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Chen X, Chen C, Tu Z, Guo Z, Lu T, Li J, Wen Y, Chen D, Lei W, Wen W, Li H. Intranasal PAMAM-G3 scavenges cell-free DNA attenuating the allergic airway inflammation. Cell Death Discov 2024; 10:213. [PMID: 38698016 PMCID: PMC11065999 DOI: 10.1038/s41420-024-01980-x] [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: 10/15/2023] [Revised: 04/11/2024] [Accepted: 04/19/2024] [Indexed: 05/05/2024] Open
Abstract
Allergic airway inflammation (AAI), including allergic rhinitis (AR) and allergic asthma, is driven by epithelial barrier dysfunction and type 2 inflammation. However, the underlying mechanism remains uncertain and available treatments are constrained. Consequently, we aim to explore the role of cell-free DNA (cfDNA) in AAI and assess the potential alleviating effects of cationic polymers (CPs) through cfDNA elimination. Levels of cfDNA were evaluated in AR patients, allergen-stimulated human bronchial epithelium (BEAS-2B cells) and primary human nasal epithelium from both AR and healthy control (HC), and AAI murine model. Polyamidoamine dendrimers-generation 3 (PAMAM-G3), a classic type of cationic polymers, were applied to investigate whether the clearance of cfDNA could ameliorate airway epithelial dysfunction and inhibit AAI. The levels of cfDNA in the plasma and nasal secretion from AR were higher than those from HC (P < 0.05). Additionally, cfDNA levels in the exhaled breath condensate (EBC) were positively correlated with Interleukin (IL)-5 levels in EBC (R = 0.4191, P = 0.0001). Plasma cfDNA levels negatively correlated with the duration of allergen immunotherapy treatment (R = -0.4297, P = 0.006). Allergen stimulated cfDNA secretion in vitro (P < 0.001) and in vivo (P < 0.0001), which could be effectively scavenged with PAMAM-G3. The application of PAMAM-G3 inhibited epithelial barrier dysfunction in vitro and attenuated the development of AAI in vivo. This study elucidates that cfDNA, a promising biomarker for monitoring disease severity, aggravates AAI and the application of intranasal PAMAM-G3 could potentially be a novel therapeutic intervention for AAI. Allergen stimulates the secretion of cell-free DNA (cfDNA) in both human and mouse airway. Intranasal polyamidoamine dendrimers-generation 3 (PAMAM-G3) scavenges cfDNA and alleviates allergic airway inflammation.
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Affiliation(s)
- Xiumin Chen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Changhui Chen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhaoxu Tu
- Department of Otorhinolaryngology, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zeling Guo
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tong Lu
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian Li
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Otorhinolaryngology, Guangxi Hospital Division of the First Affiliated Hospital, Sun Yat-sen University, Nanning, China
| | - Yihui Wen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dehua Chen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wenbin Lei
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Weiping Wen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China.
- Department of Otorhinolaryngology, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Hang Li
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China.
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Tu Z, Liu M, Xu C, Wei Y, Lu T, Xiao Y, Li H, Zhang S, Xie X, Li J, Wen W. Functional 2D Nanoplatforms Alleviate Eosinophilic Chronic Rhinosinusitis by Modulating Eosinophil Extracellular Trap Formation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307800. [PMID: 38477549 PMCID: PMC11109617 DOI: 10.1002/advs.202307800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/23/2024] [Indexed: 03/14/2024]
Abstract
The therapeutic outcomes of patients with eosinophilic chronic rhinosinusitis (ECRS) remain unsatisfactory, largely because the underlying mechanisms of eosinophilic inflammation are uncertain. Here, it is shown that the nasal secretions of ECRS patients have high eosinophil extracellular trap (EET) and cell-free DNA (cfDNA) levels. Moreover, the cfDNA induced EET formation by activating toll-like receptor 9 (TLR9) signaling. After demonstrating that DNase I reduced eosinophilic inflammation by modulating EET formation, linear polyglycerol-amine (LPGA)-coated TiS2 nanosheets (TLPGA) as functional 2D nanoplatforms with low cytotoxicity, mild protein adsorption, and increased degradation rate is developed. Due to the more flexible linear architecture, TLPGA exhibited higher cfDNA affinity than the TiS2 nanosheets coated with dendritic polyglycerol-amine (TDPGA). TLPGA reduced cfDNA levels in the nasal secretions of ECRS patients while suppressing cfDNA-induced TLR9 activation and EET formation in vitro. TLPGA displayed exceptional biocompatibility, preferential nasal localization, and potent inflammation modulation in mice with eosinophilic inflammation. These results highlight the pivotal feature of the linear molecular architecture and 2D sheet-like nanostructure in the development of anti-inflammation nanoplatforms, which can be exploited for ECRS treatment.
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Affiliation(s)
- Zhaoxu Tu
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Ming Liu
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Changyi Xu
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Department of Clinical LaboratoryThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Yi Wei
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Tong Lu
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Yongqiang Xiao
- ENT instituteEye & ENT HospitalFudan UniversityShanghai201114China
| | - Hongxia Li
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Shuaiyin Zhang
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Xinran Xie
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Jian Li
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
| | - Weiping Wen
- Department of OtolaryngologyThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Department of OtolaryngologyThe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
- Biomedical Innovation CenterThe Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655China
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Tu Z, Zhu Y, Gao W, Liu M, Wei Y, Xu C, Xiao Y, Wen Y, Li J, Leong KW, Wen W. Tackling Severe Neutrophilic Inflammation in Airway Disorders with Functionalized Nanosheets. ACS NANO 2024; 18:7084-7097. [PMID: 38377352 DOI: 10.1021/acsnano.3c11139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Severe airway inflammatory disorders impose a significant societal burden, and the available treatments are unsatisfactory. High levels of neutrophil extracellular trap (NET) and cell-free DNA (cfDNA) were detected in the inflammatory microenvironment of these diseases, which are closely associated with persistent uncontrolled neutrophilic inflammation. Although DNase has proven to be effective in mitigating neutrophilic airway inflammation in mice by reducing cfDNA and NET levels, its clinical use is hindered by severe side effects. Here, we synthesized polyglycerol-amine (PGA) with a series of hydroxyl/amine ratios and covered them with black phosphorus (BP) nanosheets. The BP nanosheets functionalized with polyglycerol-50% amine (BP-PGA50) efficiently lowered cfDNA levels, suppressed toll-like receptor 9 (TLR9) activation and inhibited NET formation in vitro. Importantly, BP-PGA50 nanosheets demonstrated substantial accumulation in inflamed airway tissues, excellent biocompatibility, and potent inflammation modulation ability in model mice. The 2D sheet-like structure of BP-PGA50 was identified as a crucial factor for the therapeutic efficacy, and the hydroxyl/amine ratio was revealed as a significant parameter to regulate the protein resistance, cfDNA-binding efficacy, and cytotoxicity. This study shows the promise of the BP-PGA50 nanosheet for tackling uncontrolled airway inflammation, which is also significant for the treatment of other neutrophilic inflammatory diseases. In addition, our work also highlights the importance of proper surface functionalization, such as hydroxyl/amine ratio, in therapeutic nanoplatform construction for inflammation modulation.
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Affiliation(s)
- Zhaoxu Tu
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Yuefei Zhu
- Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
| | - Wenlong Gao
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Ming Liu
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Yi Wei
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Changyi Xu
- Department of Clinical Laboratory, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Yongqiang Xiao
- ENT Institute, Eye & ENT Hospital, Fudan University, Shanghai 201114, China
| | - Yihui Wen
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Jian Li
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Kam W Leong
- Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
| | - Weiping Wen
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
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Wang R, Zeng M, Zhang B, Zhang Q, Jia J, Cao B, Liu M, Guo P, Zhang Y, Zheng X, Feng W. β-Sitosterol inhibits ovalbumin-induced asthma-related inflammation by regulating dendritic cells. Immunopharmacol Immunotoxicol 2022; 44:1013-1021. [PMID: 35850599 DOI: 10.1080/08923973.2022.2102990] [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: 12/13/2022]
Abstract
AIM To investigate the effects of β-sitosterol (B-SIT) and the underlying mechanisms of action in an ovalbumin-induced rat model of asthma. METHODS The pathological and morphological changes in lung and tracheal tissues were observed by H&E, PAS, and Masson's staining. The levels of IgE, TNF-α, and IFN-γ in the bronchoalveolar lavage fluid (BALF) and those of IL-6, TGF-β1, and IL-10 in serum were measured by ELISA. The relative expression levels of IL-5, IL-13, IL-21, CD11c, CD80, and CD86 mRNA in lung tissue were examined by RT-qPCR. Flow cytometry was performed to assess the levels of immune cells, including macrophages and neutrophils in spleen tissue and Th cells, Tc cells, NK cells, and DCs in peripheral blood. The protein expression levels of CD68, MPO, CD11c, CD80, and CD86 were detected by western blotting or immunohistochemistry. RESULTS B-SIT improved the injury in OVA-induced pathology, decreased the levels of inflammatory factors of IgE, TNF-α, IL-6, TGF-β1, IL-5, IL-13, and IL-21 and increased the levels of IFN-γ and IL-10. In addition, B-SIT decreased the number of macrophages and neutrophils and the relative expression levels of CD68 and MPO in the spleen. Moreover, B-SIT increased the number of Th cells, Tc cells, NK cells, and DCs in peripheral blood and upregulated the levels of CD11c, CD80, and CD86 in the spleen and lung. CONCLUSION B-SIT improved symptoms in a rat model of asthma likely via the inhibition of inflammation by regulating dendritic cells.
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Affiliation(s)
- Ru Wang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Mengnan Zeng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Beibei Zhang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Qinqin Zhang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Jufang Jia
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Bing Cao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Meng Liu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Pengli Guo
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Yuhan Zhang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Xiaoke Zheng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China.,Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan and Education Ministry of P. R., Henan University of Chinese Medicine, Zhengzhou, China
| | - Weisheng Feng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China.,Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan and Education Ministry of P. R., Henan University of Chinese Medicine, Zhengzhou, China
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