1
|
Kheir S, Villeret B, Garcia-Verdugo I, Sallenave JM. IL-6-elafin genetically modified macrophages as a lung immunotherapeutic strategy against Pseudomonas aeruginosa infections. Mol Ther 2022; 30:355-369. [PMID: 34371178 PMCID: PMC8753374 DOI: 10.1016/j.ymthe.2021.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 05/28/2021] [Accepted: 07/29/2021] [Indexed: 01/07/2023] Open
Abstract
Pseudomonas aeruginosa (P.a) infections are a major public health issue in ventilator-associated pneumoniae, cystic fibrosis, and chronic obstructive pulmonary disease exacerbations. P.a is multidrug resistant, and there is an urgent need to develop new therapeutic approaches. Here, we evaluated the effect of direct pulmonary transplantation of gene-modified (elafin and interleukin [IL]-6) syngeneic macrophages in a mouse model of acute P.a infection. Wild-type (WT) or Elafin-transgenic (eTg) alveolar macrophages (AMs) or bone marrow-derived macrophages (BMDMs) were recovered from bronchoalveolar lavage or generated from WT or eTg mouse bone marrow. Cells were modified with adenovirus IL-6 (Ad-IL-6), characterized in vitro, and transferred by oropharyngeal instillation in the lungs of naive mice. The protective effect was assessed during P.a acute infection (survival studies, mechanistic studies of the inflammatory response). We show that a single bolus of genetically modified syngeneic AMs or BMDMs provided protection in our P.a-induced model. Mechanistically, Elafin-modified AMs had an IL-6-IL-10-IL-4R-IL-22-antimicrobial molecular signature that, in synergy with IL-6, enhanced epithelial cell proliferation and tissue repair in the alveolar unit. We believe that this innovative cell therapy strategy could be of value in acute bacterial infections in the lung.
Collapse
Affiliation(s)
- Saadé Kheir
- INSERM U1152, Laboratoire d’Excellence Inflamex, Université de Paris, Hôpital Bichat—Claude-Bernard, Paris 75014, France
| | - Bérengère Villeret
- INSERM U1152, Laboratoire d’Excellence Inflamex, Université de Paris, Hôpital Bichat—Claude-Bernard, Paris 75014, France
| | - Ignacio Garcia-Verdugo
- INSERM U1152, Laboratoire d’Excellence Inflamex, Université de Paris, Hôpital Bichat—Claude-Bernard, Paris 75014, France
| | - Jean-Michel Sallenave
- INSERM U1152, Laboratoire d’Excellence Inflamex, Université de Paris, Hôpital Bichat—Claude-Bernard, Paris 75014, France,Corresponding author: Jean-Michel Sallenave, INSERM U1152, Laboratoire d’Excellence Inflamex, Université de Paris, Hôpital Bichat—Claude-Bernard, Paris 75014, France.
| |
Collapse
|
2
|
Pulmonary transplantation of alpha-1 antitrypsin (AAT)-transgenic macrophages provides a source of functional human AAT in vivo. Gene Ther 2021; 28:477-493. [PMID: 34276045 PMCID: PMC8455329 DOI: 10.1038/s41434-021-00269-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 04/28/2021] [Accepted: 05/27/2021] [Indexed: 12/30/2022]
Abstract
Inherited deficiency of the antiprotease alpha-1 antitrypsin (AAT) is associated with liver failure and early-onset emphysema. In mice, in vivo lentiviral transduction of alveolar macrophages (AMs) has been described to yield protective pulmonary AAT levels and ameliorate emphysema development. We here investigated the pulmonary transplantation of macrophages (PMT) transgenic for AAT as a potential therapy for AAT deficiency-associated lung pathology. Employing third-generation SIN-lentiviral vectors expressing the human AAT cDNA from the CAG or Cbx-EF1α promoter, we obtained high-level AAT secretion in a murine AM cell line as well as murine bone marrow-derived macrophages differentiated in vitro (AAT MΦ). Secreted AAT demonstrated a physiologic glycosylation pattern as well as elastase-inhibitory and anti-apoptotic properties. AAT MΦ preserved normal morphology, surface phenotype, and functionality. Furthermore, in vitro generated murine AAT MΦ successfully engrafted in AM-deficient Csf2rb-/- mice and converted into a CD11c+/Siglec-F+ AM phenotype as detected in bronchoalveolar lavage fluid and homogenized lung tissue 2 months after PMT. Moreover, human AAT was detected in the lung epithelial lining fluid of transplanted animals. Efficient AAT expression and secretion were also demonstrated for human AAT MΦ, confirming the applicability of our vectors in human cells.
Collapse
|
3
|
McNulty MJ, Silberstein DZ, Kuhn BT, Padgett HS, Nandi S, McDonald KA, Cross CE. Alpha-1 antitrypsin deficiency and recombinant protein sources with focus on plant sources: Updates, challenges and perspectives. Free Radic Biol Med 2021; 163:10-30. [PMID: 33279618 DOI: 10.1016/j.freeradbiomed.2020.11.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 12/16/2022]
Abstract
Alpha-1 antitrypsin deficiency (A1ATD) is an autosomal recessive disease characterized by low plasma levels of A1AT, a serine protease inhibitor representing the most abundant circulating antiprotease normally present at plasma levels of 1-2 g/L. The dominant clinical manifestations include predispositions to early onset emphysema due to protease/antiprotease imbalance in distal lung parenchyma and liver disease largely due to unsecreted polymerized accumulations of misfolded mutant A1AT within the endoplasmic reticulum of hepatocytes. Since 1987, the only FDA licensed specific therapy for the emphysema component has been infusions of A1AT purified from pooled human plasma at the 2020 cost of up to US $200,000/year with the risk of intermittent shortages. In the past three decades various, potentially less expensive, recombinant forms of human A1AT have reached early stages of development, one of which is just reaching the stage of human clinical trials. The focus of this review is to update strategies for the treatment of the pulmonary component of A1ATD with some focus on perspectives for therapeutic production and regulatory approval of a recombinant product from plants. We review other competitive technologies for treating the lung disease manifestations of A1ATD, highlight strategies for the generation of data potentially helpful for securing FDA Investigational New Drug (IND) approval and present challenges in the selection of clinical trial strategies required for FDA licensing of a New Drug Approval (NDA) for this disease.
Collapse
Affiliation(s)
- Matthew J McNulty
- Department of Chemical Engineering, University of California, Davis, CA, USA
| | - David Z Silberstein
- Department of Chemical Engineering, University of California, Davis, CA, USA
| | - Brooks T Kuhn
- Department of Internal Medicine, University of California, Davis, CA, USA; University of California, Davis, Alpha-1 Deficiency Clinic, Sacramento, CA, USA
| | | | - Somen Nandi
- Department of Chemical Engineering, University of California, Davis, CA, USA; Global HealthShare Initiative®, University of California, Davis, CA, USA
| | - Karen A McDonald
- Department of Chemical Engineering, University of California, Davis, CA, USA; Global HealthShare Initiative®, University of California, Davis, CA, USA
| | - Carroll E Cross
- Department of Internal Medicine, University of California, Davis, CA, USA; University of California, Davis, Alpha-1 Deficiency Clinic, Sacramento, CA, USA; Department of Physiology and Membrane Biology, University of California, Davis, CA, USA.
| |
Collapse
|
4
|
Pu Q, Zhao Y, Sun Y, Huang T, Lin P, Zhou C, Qin S, Singh BB, Wu M. TRPC1 intensifies house dust mite-induced airway remodeling by facilitating epithelial-to-mesenchymal transition and STAT3/NF-κB signaling. FASEB J 2018; 33:1074-1085. [PMID: 30067380 DOI: 10.1096/fj.201801085r] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Airway remodeling with progressive epithelial alterations in the respiratory tract is a severe consequence of asthma. Although dysfunctional signaling transduction is attributed to airway inflammation, the exact mechanism of airway remodeling remains largely unknown. TRPC1, a member of the transient receptor potential canonical Ca2+ channel family, possesses versatile functions but its role in airway remodeling remains undefined. Here, we show that ablation of TRPC1 in mice alleviates airway remodeling following house dust mite (HDM) challenge with decreases in mucus production, cytokine secretion, and collagen deposition. HDM challenge induces Ca2+ influx via the TRPC1 channel, resulting in increased levels of signal transducer and activator of transcription 3 (STAT3) and proinflammatory cytokines. In contrast, STAT3 expression was significantly decreased in TRPC1-/- mouse lungs compared with wild-type controls after HDM challenge. Mechanistically, STAT3 promotes epithelial-to-mesenchymal transition and increases mucin 5AC expression. Collectively, these findings identify TRPC1 as a modulator of HDM-induced airway remodeling via STAT3-mediated increase in mucus production, which provide new insight in our understanding of the molecular basis of airway remodeling, and identify novel therapeutic targets for intervention of severe chronic asthma.-Pu, Q., Zhao, Y., Sun, Y., Huang, T., Lin, P., Zhou, C., Qin, S., Singh, B. B., Wu, M. TRPC1 intensifies house dust mite-induced airway remodeling by facilitating epithelial-to-mesenchymal transition and STAT3/NF-κB signaling.
Collapse
Affiliation(s)
- Qinqin Pu
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA; and.,State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yuanyu Zhao
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA; and
| | - Yuyang Sun
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA; and
| | - Ting Huang
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA; and
| | - Ping Lin
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA; and
| | - Chuanmin Zhou
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA; and
| | - Shugang Qin
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA; and.,State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Brij B Singh
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA; and
| | - Min Wu
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, USA; and
| |
Collapse
|
5
|
Wu W, Wang Q, Yin F, Yang Z, Zhang W, Gabra H, Li L. Identification of proteomic and metabolic signatures associated with chemoresistance of human epithelial ovarian cancer. Int J Oncol 2016; 49:1651-65. [PMID: 27511453 DOI: 10.3892/ijo.2016.3652] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 07/25/2016] [Indexed: 11/06/2022] Open
Abstract
Emerging drug resistance in epithelial ovarian cancer (EOC) thwarted progress in platinum‑based chemotherapy, resulting in increased mortality, morbidity and healthcare costs. The aim of this study was to detect the responses induced by chemotherapy at protein and metabolite levels, and to search for new plasma markers that can predict resistance to platinum‑based chemotherapy in EOC patients, leading to improved clinical response rates. Serum samples were collected and subjected to proteomic relative quantitation analysis and metabolomic analysis. Differentially expressed proteins and metabolites were subjected to bioinformatics and statistical analysis. Proteins that played a key role in platinum resistance were validated by western blotting and enzyme‑linked immunosorbent assay (ELISA). Metabolites that were the main contributors to the groups and closely with clinical characteristics were identified based on the database using nuclear magnetic resonance (NMR). In total, 248 proteins from two independent experiments were identified using isobaric tags for relative and absolute quantitation (iTRAQ)‑based quantitative proteomic approach. Among them, FN1, SERPINA1, GPX3 and ORM1 were chosen for western blotting and ELISA validation. Platinum resistance likely associated with differentially expressed proteins and FN1, SERPINA1 and ORM1 may play a positive role in chemotherapy. HPLC‑MS analysis of four groups revealed a total of 25,800 metabolic features, of which six compounds were chosen for candidate biomarkers and identified based on the database using NMR. The metabolic signatures of normal control (NC), platinum‑sensitive (PTS) and platinum‑resistant (PTR) groups were clearly separated from each other. Those findings may provide theoretical clues for the prediction of chemotherapeutic response and reverse of drug resistance, even lead to novel targets for therapeutic intervention.
Collapse
Affiliation(s)
- Wenjuan Wu
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Qi Wang
- Key Laboratory of High‑Incidence Tumor Prevention and Treatment (Guangxi Medical University), Ministry of Education, Nanning, Guangxi 530021, P.R. China
| | - Fuqiang Yin
- Key Laboratory of High‑Incidence Tumor Prevention and Treatment (Guangxi Medical University), Ministry of Education, Nanning, Guangxi 530021, P.R. China
| | - Zhijun Yang
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Wei Zhang
- Key Laboratory of High‑Incidence Tumor Prevention and Treatment (Guangxi Medical University), Ministry of Education, Nanning, Guangxi 530021, P.R. China
| | - Hani Gabra
- Section of Molecular Therapeutics, Department of Cancer Medicine, Imperial College London, London, UK
| | - Li Li
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| |
Collapse
|
6
|
Li X, He S, Li R, Zhou X, Zhang S, Yu M, Ye Y, Wang Y, Huang C, Wu M. Pseudomonas aeruginosa infection augments inflammation through miR-301b repression of c-Myb-mediated immune activation and infiltration. Nat Microbiol 2016; 1:16132. [PMID: 27670114 PMCID: PMC5061341 DOI: 10.1038/nmicrobiol.2016.132] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 07/05/2016] [Indexed: 02/05/2023]
Abstract
microRNAs (miRNAs) play critical roles in various biological processes including cell proliferation, development, and host defense. However, the molecular mechanism for miRNAs in regulating bacterial-induced inflammation remains largely unclear. Here we report that miR-301b augments pro-inflammatory response during pulmonary infection and caffeine (CAF) suppresses miR-301b’s effect and thereby augmenting respiratory immunity. LPS treatment or Pseudomonas aeruginosa infection induces miR-301b expression via a TLR4/MyD88/NF-κB pathway. Importantly, CAF decreases miR-301b expression through negative regulation of the cAMP/PKA/NF-κB axis. Further, c-Myb is identified as a target of miR-301b, which positively modulates anti-inflammatory cytokines IL-4 and TGF-β1, but negatively regulates pro-inflammatory cytokines MIP-1α and IL-17A. Moreover, repression of miR-301b results in increased transcription of c-Myb and elevated levels of neutrophil infiltration, thereby alleviating infectiou symptoms in mice. These findings reveal miR-301b as a new controller of inflammatory response by repressing c-Myb function to inhibit anti-inflammatory response to bacterial infection, representing a novel mechanism for balancing inflammation.
Collapse
Affiliation(s)
- Xuefeng Li
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota 58203-9037, USA.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Sisi He
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota 58203-9037, USA.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Rongpeng Li
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota 58203-9037, USA
| | - Xikun Zhou
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota 58203-9037, USA.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Shuang Zhang
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota 58203-9037, USA.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Min Yu
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota 58203-9037, USA.,Department of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yan Ye
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota 58203-9037, USA
| | - Yongsheng Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Min Wu
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota 58203-9037, USA
| |
Collapse
|
7
|
Zhuang Y, Li Y, Li X, Xie Q, Wu M. Atg7 Knockdown Augments Concanavalin A-Induced Acute Hepatitis through an ROS-Mediated p38/MAPK Pathway. PLoS One 2016; 11:e0149754. [PMID: 26939081 PMCID: PMC4777387 DOI: 10.1371/journal.pone.0149754] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 02/04/2016] [Indexed: 02/02/2023] Open
Abstract
Concanavalin A (ConA), a T-cell mitogen that induces acute autoimmune hepatitis, is widely used to model pathophysiological processes of human acute autoimmune liver disease. Although autophagy has been extensively studied in the past decade, little is known about its molecular mechanism underlying the regulation of ConA-induced acute hepatitis. In this study, we used a Cre-conditional atg7 KO mouse to investigate the effects of Atg7-associated autophagy on ConA-induced murine hepatitis. Our results demonstrated that atg7 deficiency in mice enhanced macrophage activation and increased pro-inflammatory cytokines upon ConA stimulation. Atg7 silencing resulted in accumulation of dysfunctional mitochondria, disruption of reactive oxygen species (ROS) degradation, and increase in pro-inflammatory cytokines in Raw264.7 cells. p38/MAPK and NF-κB levels were increased upon ConA induction due to Atg7 deficiency. Blocking ROS production inhibited ConA-induced p38/IκB phosphorylation and subsequent intracellular inflammatory responses. Hence, this study demonstrated that atg7 knockout in mice or Atg7 knockdown in cell culture augmented ConA-induced acute hepatitis and related cellular malfunction, indicating protective effects of Atg7 on regulating mitochondrial ROS via a p38/MAPK-mediated pathway. Collectively, our findings reveal that autophagy may attenuate macrophage-mediated inflammatory response to ConA and may be the potential therapeutic targets for acute liver injury.
Collapse
Affiliation(s)
- Yan Zhuang
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Road II, Shanghai 200025, China
- Department of Basic Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, North Dakota, United States of America
| | - Yi Li
- Department of Basic Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, North Dakota, United States of America
| | - Xuefeng Li
- Department of Basic Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, North Dakota, United States of America
| | - Qing Xie
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Road II, Shanghai 200025, China
| | - Min Wu
- Department of Basic Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, North Dakota, United States of America
| |
Collapse
|
8
|
Li X, He S, Zhou X, Ye Y, Tan S, Zhang S, Li R, Yu M, Jundt MC, Hidebrand A, Wang Y, Li G, Huang C, Wu M. Lyn Delivers Bacteria to Lysosomes for Eradication through TLR2-Initiated Autophagy Related Phagocytosis. PLoS Pathog 2016; 12:e1005363. [PMID: 26735693 PMCID: PMC4703367 DOI: 10.1371/journal.ppat.1005363] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 12/04/2015] [Indexed: 02/05/2023] Open
Abstract
Extracellular bacteria, such as Pseudomonas aeruginosa and Klebsiella pneumoniae, have been reported to induce autophagy; however, the role and machinery of infection-induced autophagy remain elusive. We show that the pleiotropic Src kinase Lyn mediates phagocytosis and autophagosome maturation in alveolar macrophages (AM), which facilitates eventual bacterial eradication. We report that Lyn is required for bacterial infection-induced recruitment of autophagic components to pathogen-containing phagosomes. When we blocked autophagy with 3-methyladenine (3-MA) or by depleting Lyn, we observed less phagocytosis and subsequent bacterial clearance by AM. Both morphological and biological evidence demonstrated that Lyn delivered bacteria to lysosomes through xenophagy. TLR2 initiated the phagocytic process and activated Lyn following infection. Cytoskeletal trafficking proteins, such as Rab5 and Rab7, critically facilitated early phagosome formation, autophagosome maturation, and eventual autophagy-mediated bacterial degradation. These findings reveal that Lyn, TLR2 and Rab modulate autophagy related phagocytosis and augment bactericidal activity, which may offer insight into novel therapeutic strategies to control lung infection. It is vital to establish the mechanistic basis for initiation of host defenses and immune responses that are required to eliminate bacterial infection. This line of inquiry will increase knowledge of bacterial pathogenesis and uncover new insights that can enhance design and effectiveness of novel therapeutics. We demonstrate that TLR-2 is required for inducing Lyn activity in host defense against Pa infection through assistance in autophagosome maturation, and may link autophagy to phagocytosis in a TLR-2-Lyn-dependent manner. Thus, these results may further help to alleviate human acute lung injury/adult respiratory distress syndrome (ALI/ARDS) caused by Gram-negative bacteria.
Collapse
Affiliation(s)
- Xuefeng Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, P.R. China
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Sisi He
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, P.R. China
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Xikun Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, P.R. China
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Yan Ye
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Shirui Tan
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Shuang Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, P.R. China
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Rongpeng Li
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Min Yu
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
- Department of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Michael C. Jundt
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Alec Hidebrand
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Yongsheng Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, P.R. China
| | - Guoping Li
- Inflammations & Allergic Diseases Research Unit, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, P.R. China
- * E-mail: (GL); (CH); (MW)
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, P.R. China
- * E-mail: (GL); (CH); (MW)
| | - Min Wu
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
- * E-mail: (GL); (CH); (MW)
| |
Collapse
|
9
|
Wozniak J, Wandtke T, Kopinski P, Chorostowska-Wynimko J. Challenges and Prospects for Alpha-1 Antitrypsin Deficiency Gene Therapy. Hum Gene Ther 2015; 26:709-18. [PMID: 26413996 PMCID: PMC4651033 DOI: 10.1089/hum.2015.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 08/01/2015] [Indexed: 01/06/2023] Open
Abstract
Alpha-1 antitrypsin (AAT) is a protease inhibitor belonging to the serpin family. A number of identified mutations in the SERPINA1 gene encoding this protein result in alpha-1 antitrypsin deficiency (AATD). A decrease in AAT serum concentration or reduced biological activity causes considerable risk of chronic respiratory and liver disorders. As a monogenic disease, AATD appears to be an attractive target for gene therapy, particularly for patients with pulmonary dysfunction, where augmentation of functional AAT levels in plasma might slow down respiratory disease development. The short AAT coding sequence and its activity in the extracellular matrix would enable an increase in systemic serum AAT production by cellular secretion. In vitro and in vivo experimental AAT gene transfer with gamma-retroviral, lentiviral, adenoviral, and adeno-associated viral (AAV) vectors has resulted in enhanced AAT serum levels and a promising safety profile. Human clinical trials using intramuscular viral transfer with AAV1 and AAV2 vectors of the AAT gene demonstrated its safety, but did not achieve a protective level of AAT >11 μM in serum. This review provides an in-depth critical analysis of current progress in AATD gene therapy based on viral gene transfer. The factors affecting transgene expression levels, such as site of administration, dose and type of vector, and activity of the immune system, are discussed further as crucial variables for optimizing the clinical effectiveness of gene therapy in AATD subjects.
Collapse
Affiliation(s)
- Joanna Wozniak
- Department of Gene Therapy, Faculty of Medicine, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
| | - Tomasz Wandtke
- Department of Gene Therapy, Faculty of Medicine, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
| | - Piotr Kopinski
- Department of Gene Therapy, Faculty of Medicine, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
| | - Joanna Chorostowska-Wynimko
- Department of Genetics and Clinical Immunology, National Institute of Tuberculosis and Lung Diseases, Warsaw, Poland
| |
Collapse
|
10
|
Tan S, Gan C, Li R, Ye Y, Zhang S, Wu X, Yang YY, Fan W, Wu M. A novel chemosynthetic peptide with β-sheet motif efficiently kills Klebsiella pneumoniae in a mouse model. Int J Nanomedicine 2015; 10:1045-59. [PMID: 25709431 PMCID: PMC4330034 DOI: 10.2147/ijn.s73303] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Klebsiella pneumoniae (Kp) is one of the most common pathogens in nosocomial infections and is increasingly becoming multiple drug resistant. However, the molecular pathogenesis of Kp in causing tissue injury and dysregulated host defense remains elusive, further dampening the development of novel therapeutic measures. We have previously screened a series of synthetic antimicrobial beta-sheet forming peptides and identified a peptide (IRIKIRIK; ie, IK8L) with a broad range of bactericidal activity and low cytotoxicity in vitro. Here, employing an animal model, we investigated the antibacterial effects of IK8L in acute infection and demonstrated that peritoneal injection of IK8L to mice down-regulated inflammatory cytokines, alleviated lung injury, and importantly, decreased mortality compared to sham-injected controls. In addition, a math model was used to evaluate in vivo imaging data and predict infection progression in infected live animals. Mechanistically, IK8L can kill Kp by inhibiting biofilm formation and modulating production of inflammatory cytokines through the STAT3/JAK signaling both in vitro and in vivo. Collectively, these findings reveal that IK8L may have potential for preventing or treating Kp infection.
Collapse
Affiliation(s)
- Shirui Tan
- Department of Basic Sciences, School of Medicine and Health Sciences University of North Dakota, Grand Forks, ND, USA ; Laboratory of Biochemistry and Molecular Biology, School of Life Sciences, Yunnan University, Kunming, People's Republic of China
| | - Changpei Gan
- Department of Basic Sciences, School of Medicine and Health Sciences University of North Dakota, Grand Forks, ND, USA ; State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Rongpeng Li
- Department of Basic Sciences, School of Medicine and Health Sciences University of North Dakota, Grand Forks, ND, USA
| | - Yan Ye
- Department of Basic Sciences, School of Medicine and Health Sciences University of North Dakota, Grand Forks, ND, USA
| | - Shuang Zhang
- Department of Basic Sciences, School of Medicine and Health Sciences University of North Dakota, Grand Forks, ND, USA ; State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Xu Wu
- Department of Basic Sciences, School of Medicine and Health Sciences University of North Dakota, Grand Forks, ND, USA
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, The Nanos, Singapore
| | - Weimin Fan
- Program of Innovative Cancer Therapeutics, First Affiliated Hospital of Zhejiang University College of Medicine, Hangzhou, People's Republic of China
| | - Min Wu
- Department of Basic Sciences, School of Medicine and Health Sciences University of North Dakota, Grand Forks, ND, USA
| |
Collapse
|
11
|
Li X, Ye Y, Zhou X, Huang C, Wu M. Atg7 enhances host defense against infection via downregulation of superoxide but upregulation of nitric oxide. THE JOURNAL OF IMMUNOLOGY 2014; 194:1112-21. [PMID: 25535282 DOI: 10.4049/jimmunol.1401958] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Pseudomonas aeruginosa is an opportunistic bacterium that can cause serious infection in immunocompromised individuals. Although autophagy may augment immune responses against P. aeruginosa infection in macrophages, the critical components and their role of autophagy in host defense are largely unknown. In this study, we show that P. aeruginosa infection-induced autophagy activates JAK2/STAT1α and increases NO production. Knocking down Atg7 resulted in increased IFN-γ release, excessive reactive oxygen species, and increased Src homology-2 domain-containing phosphatase 2 activity, which led to lowered phosphorylation of JAK2/STAT1α and subdued expression of NO synthase 2 (NOS2). In addition, we demonstrated the physiological relevance of dysregulated NO under Atg7 deficiency as atg7(-/-) mice were more susceptible to P. aeruginosa infection with increased mortality and severe lung injury than wild-type mice. Furthermore, P. aeruginosa-infected atg7(-/-) mice exhibited increased oxidation but decreased bacterial clearance in the lung and other organs compared with wild-type mice. Mechanistically, atg7 deficiency suppressed NOS2 activity by downmodulating JAK2/STAT1α, leading to decreased NO both in vitro and in vivo. Taken together, these findings revealed that the JAK2/STAT1α/NOS2 dysfunction leads to dysregulated immune responses and worsened disease phenotypes.
Collapse
Affiliation(s)
- Xuefeng Li
- Department of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203; and State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Yan Ye
- Department of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203; and
| | - Xikun Zhou
- Department of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203; and State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Canhua Huang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Min Wu
- Department of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203; and
| |
Collapse
|
12
|
Li Y, Gan CP, Zhang S, Zhou XK, Li XF, Wei YQ, Yang JL, Wu M. FIP200 is involved in murine pseudomonas infection by regulating HMGB1 intracellular translocation. Cell Physiol Biochem 2014; 33:1733-44. [PMID: 24923305 PMCID: PMC4393741 DOI: 10.1159/000362954] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2014] [Indexed: 02/05/2023] Open
Abstract
Background FIP200, a critical autophagy initiating protein, can participate in numerous cellular functions including cancer development; however, its functional role in P. aeruginosa infection of alveolar macrophages is unknown. Methods To investigate the role of FIP200 in host defense, we transfected murine alveolar macrophage MH-S cells with FIP200 siRNA. Having confirmed that FIP200 knockdown inhibited PAO1-induced autophagosme formation, we sought to characterize the underlying signaling pathways by immunoblotting. Further, we used fip200 KO mice to study the effects of fip200 deficiency on HMGB1 translocation. Results We showed that Pseudomonas PAO1 strain infection facilitated autophagosome formation, whereas knockdown of FIP200 inhibited autophagosome formation and HMGB1 expression in MH-S cells. Silencing FIP200 impaired the translocation of HMGB1 to cytosol of MH-S cells and almost abolished acetylation of HMGB1 during PAO1 infection. In contrast, FIP200 overexpression facilitated the cytosol translocation of HMGB1 from nuclei and increased acetylation of HMGB1 in PAO1-infected MH-S cells. Importantly, expression and acetylation of HMGB1 were also significantly down-regulated in fip200 KO mice following PAO1 infection. Conclusions Collectively, these findings elucidate that FIP200 may regulate expression and translocation of HMGB1 during PAO1 infection, which may indicate novel therapeutic targets to control pulmonary infection.
Collapse
Affiliation(s)
- Yi Li
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Qin X, Chen Q, Sun C, Wang C, Peng Q, Xie L, Liu Y, Li S. High-throughput screening of tumor metastatic-related differential glycoprotein in hepatocellular carcinoma by iTRAQ combines lectin-related techniques. Med Oncol 2013; 30:420. [PMID: 23292873 DOI: 10.1007/s12032-012-0420-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 11/05/2012] [Indexed: 02/06/2023]
Abstract
Glycoproteomics is an important aspect in the research of cancer biomarker discovery. The objective of our study is to screen the profile of serum glycoproteins in hepatocellular carcinoma (HCC) patients and to discover differentially expressed glycoproteins in HCC with or without metastasis. We collected serum from HCC patients and divided them into two groups (non-metastatic HCC group and metastatic HCC group) according to 2002 UICC TNM staging system. Wheat germ agglutinin (WGA) lectin was used to enrich the serum glycoproteins by lectin affinity chromatography. The enriched glycoproteins were labeled with mass-balanced isobaric tags (iTRAQ) and analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Two differential glycoproteins were validated by Western blot and biochemical methods, respectively. Fifteen differential serum glycoproteins with WGA affinity were identified (p < 0.05). Among them, nine proteins were up-regulated (>1.5-folds) and six were down-regulated (<0.5-folds) in HCC patients with metastasis. Expression of alpha-1-antitrypsin (SERPINA1) and apolipoprotein A-I (APOA1) was validated by Western blot and biochemical methods, respectively (p < 0.05). Our study has obtained a set of HCC metastasis-associated glycoproteins which may serve as novel prognostic candidates and potential therapeutic targets for HCC metastasis. SERPINA1 might act as a potential glycoprotein biomarker of HCC metastasis.
Collapse
Affiliation(s)
- Xue Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, NO. 22, Shuangyong Road, Nanning 530021, Guangxi, China
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Jacobsen NR, Møller P, Cohn CA, Loft S, Vogel U, Wallin H. Diesel exhaust particles are mutagenic in FE1-MutaMouse lung epithelial cells. Mutat Res 2008; 641:54-57. [PMID: 18423769 DOI: 10.1016/j.mrfmmm.2008.03.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2007] [Revised: 02/25/2008] [Accepted: 03/12/2008] [Indexed: 05/26/2023]
Abstract
The particulate phase of diesel engine exhaust is likely carcinogenic. However, the mechanisms of diesel exhaust particles (DEPs) induced mutagenicity/carcinogenicity are still largely unknown. We determined the mutant frequency following eight repeated 72 h incubations with 37.5 or 75 microg/ml DEP (NIST SRM 1650) in the FE1-MutaMouse lung epithelial cell line. We measured DEP-induced acellular and intracellular production of reactive oxygen species (ROS) and compared with ROS production induced by carbon black, which we have previously shown is mutagenic in this cell line [N.R. Jacobsen, A.T. Saber, P. White, P. Moller, G. Pojana, U. Vogel, S. Loft, J. Gingerich, L. Soper, G.R. Douglas, H. Wallin. Increased mutant frequency by carbon black, but not quartz, in the lacZ and cII transgenes of mutamouse lung epithelial cells, Environ. Mol. Mutagen. 48(6) (2007) 451-461]. The mutant frequency was marginally elevated in cells treated with 37.5 microg/ml DEP (1.29-fold [95% CI: 0.96-1.60], p=0.08) and significantly increased in cells treated with 75 microg/ml DEP (1.55-fold [95% CI: 1.23-1.87], p < 0.001). ROS production from DEP was low both within cells and in acellular systems when compared to carbon black. These results show that DEP are mutagenic in a mammalian cell line in vitro and that additional pathways besides ROS production, such as those involving the presence of polycyclic aromatic hydrocarbons, likely are involved in the mutagenesis.
Collapse
Affiliation(s)
- Nicklas Raun Jacobsen
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen Ø, Denmark
| | | | | | | | | | | |
Collapse
|
15
|
Li HY, Seville PC, Williamson IJ, Birchall JC. The use of amino acids to enhance the aerosolisation of spray-dried powders for pulmonary gene therapy. J Gene Med 2005; 7:343-53. [PMID: 15515142 DOI: 10.1002/jgm.654] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Pulmonary delivery of gene therapy offers the potential for the treatment of a range of lung conditions, including cystic fibrosis, asthma and lung cancer. Spray-drying may be used to prepare dry powders for inhalation; however, aerosolisation of such powders is limited, resulting in poor lung deposition and biological functionality. In this study, we examine the use of amino acids (arginine, aspartic acid, threonine, phenylalanine) to enhance the aerosolisation of spray-dried powders containing model non-viral gene vectors. METHODS Lipid/polycation/pDNA (LPD) vectors, in the presence or absence of amino acids, were dispersed in lactose solutions, and spray-dried to produce appropriately sized dry powders. Scanning electron microscopy and laser diffraction were used to determine particle morphology and diameter, respectively. Gel electrophoresis was used to examine the influence of amino acids on the structural integrity of the LPD complex. In vitro cell (A549) transfection was used to determine the biological functionality of the dry powders, and the in vitro aerosolisation performance was assessed using a multistage liquid impinger (MSLI). RESULTS Both gel electrophoresis and in vitro cell transfection indicated that certain amino acids (aspartic acid, threonine) can adversely affect the integrity and biological functionality of the LPD complex. All amino acids significantly increased the aerosolisation of the powder, with the arginine and phenylalanine powders showing optimal deposition in the lower stages of the MSLI. CONCLUSIONS Amino acids can be used to enhance the aerosolisation of spray-dried powders for respiratory gene delivery, allowing the development of stable and viable formulations for pulmonary gene therapy.
Collapse
Affiliation(s)
- H-Y Li
- Gene Delivery Research Group, Welsh School of Pharmacy, Cardiff University, Cardiff CF10 3XF, Wales, UK
| | | | | | | |
Collapse
|
16
|
|
17
|
Song S, Witek RP, Lu Y, Choi YK, Zheng D, Jorgensen M, Li C, Flotte TR, Petersen BE. Ex vivo transduced liver progenitor cells as a platform for gene therapy in mice. Hepatology 2004; 40:918-24. [PMID: 15382177 DOI: 10.1002/hep.20404] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Allogeneic stem cell-based transplants may be limited by allograft rejection, as is seen with conventional organ transplantation. One way to avert such a response is to use autologous stem cells, but that may carry the risk of recurrence of the original disease, particularly in the context of a genetic defect. We investigated the potential for gene modification of autologous stem cells to avoid both problems, using recombinant adenoassociated virus vector expressing human alpha1-antitrypsin in murine liver progenitor cells. We showed that recombinant adenoassociated virus 1 was the most efficient vector for liver progenitor cell transduction among five different serotypes of recombinant adenoassociated virus vectors. Ex vivo infected green fluorescent protein-positive liver progenitor cells from C57BL/6 mice with recombinant adenoassociated virus 1-vector-expressing human alpha1 antitrypsin were transplanted into the liver of monocrotaline-treated and partial-hepatectomized C57BL/6 recipients. Using green fluorescent protein as a donor marker, we were able to determine that at 18 weeks after transplantation, approximately 40% to 50% of the regenerated liver was green fluorescent protein positive. In addition, transgene expression (serum human alpha1-antitrypsin) was sustained for the length of the study (18 weeks after transplantation). Immunostaining revealed approximately 5% to 10% of repopulating liver cells expressing human alpha1-antitrypsin. In conclusion, this study demonstrated the feasibility of long-term engraftment and stability of transgene expression from genetically modified liver progenitor cells with a recombinant adenoassociated virus vector and implies a novel approach to gene therapy for treatment of liver diseases, such as alpha1-antitrypsin deficiency.
Collapse
Affiliation(s)
- Sihong Song
- Department of Pharmaceutics, University of Florida, Gainesville, FL 32610, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|