1
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Camacho-Toledano C, Machín-Díaz I, Lebrón-Galán R, González-Mayorga A, Palomares FJ, Serrano MC, Clemente D. Graphene oxide films as a novel tool for the modulation of myeloid-derived suppressor cell activity in the context of multiple sclerosis. NANOSCALE 2024; 16:7515-7531. [PMID: 38498071 DOI: 10.1039/d3nr05351b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Despite the pharmacological arsenal approved for Multiple Sclerosis (MS), there are treatment-reluctant patients for whom cell therapy appears as the only therapeutic alternative. Myeloid-derived suppressor cells (MDSCs) are immature cells of the innate immunity able to control the immune response and to promote oligodendroglial differentiation in the MS animal model experimental autoimmune encephalomyelitis (EAE). However, when isolated and cultured for cell therapy purposes, MDSCs lose their beneficial immunomodulatory properties. To prevent this important drawback, culture devices need to be designed so that MDSCs maintain a state of immaturity and immunosuppressive function similar to that exerted in the donor organism. With this aim, we select graphene oxide (GO) as a promising candidate as it has been described as a biocompatible nanomaterial with the capacity to biologically modulate different cell types, yet its immunoactive potential has been poorly explored to date. In this work, we have fabricated GO films with two distintive redox and roughness properties and explore their impact in MDSC culture right after isolation. Our results show that MDSCs isolated from immune organs of EAE mice maintain an immature phenotype and highly immunosuppressive activity on T lymphocytes after being cultured on highly-reduced GO films (rGO200) compared to those grown on conventional glass coverslips. This immunomodulation effect is depleted when MDSCs are exposed to slightly rougher and more oxidized GO substrates (rGO90), in which cells experience a significant reduction in cell size associated with the activation of apoptosis. Taken together, the exposure of MDSCs to GO substrates with different redox state and roughness is presented as a good strategy to control MDSC activity in vitro. The versatility of GO nanomaterials in regards to the impact of their physico-chemical properties in immunomodulation opens the door to their selective therapeutic potential for pathologies where MDSCs need to be enhanced (MS) or inhibited (cancer).
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Affiliation(s)
- Celia Camacho-Toledano
- Neuroimmune-Repair Group, Hospital Nacional de Parapléjicos (HNP), SESCAM, Finca La Peraleda s/n, 45071-Toledo, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Carlos III Health Institute, Av. Monforte de Lemos, 3-5, 28029-Madrid, Spain
| | - Isabel Machín-Díaz
- Neuroimmune-Repair Group, Hospital Nacional de Parapléjicos (HNP), SESCAM, Finca La Peraleda s/n, 45071-Toledo, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Carlos III Health Institute, Av. Monforte de Lemos, 3-5, 28029-Madrid, Spain
| | - Rafael Lebrón-Galán
- Neuroimmune-Repair Group, Hospital Nacional de Parapléjicos (HNP), SESCAM, Finca La Peraleda s/n, 45071-Toledo, Spain.
| | - Ankor González-Mayorga
- Laboratory of Interfaces for Neural Repair, Hospital Nacional de Parapléjicos, SESCAM, Finca La Peraleda s/n, 45071- Toledo, Spain
| | - Francisco J Palomares
- Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Calle Sor Juana Inés de la Cruz 3, 28049-Madrid, Spain.
| | - María C Serrano
- Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Calle Sor Juana Inés de la Cruz 3, 28049-Madrid, Spain.
| | - Diego Clemente
- Neuroimmune-Repair Group, Hospital Nacional de Parapléjicos (HNP), SESCAM, Finca La Peraleda s/n, 45071-Toledo, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Carlos III Health Institute, Av. Monforte de Lemos, 3-5, 28029-Madrid, Spain
- Design and development of biomaterials for neural regeneration, HNP, Associated Unit to CSIC through ICMM, Finca La Peraleda s/n, 45071-Toledo, Spain
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2
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Pondman K, Le Gac S, Kishore U. Nanoparticle-induced immune response: Health risk versus treatment opportunity? Immunobiology 2023; 228:152317. [PMID: 36592542 DOI: 10.1016/j.imbio.2022.152317] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/12/2022] [Accepted: 12/21/2022] [Indexed: 12/25/2022]
Abstract
Nanoparticles (NPs) are not only employed in many biomedical applications in an engineered form, but also occur in our environment, in a more hazardous form. NPs interact with the immune system through various pathways and can lead to a myriad of different scenarios, ranging from their quiet removal from circulation by macrophages without any impact for the body, to systemic inflammatory effects and immuno-toxicity. In the latter case, the function of the immune system is affected by the presence of NPs. This review describes, how both the innate and adaptive immune system are involved in interactions with NPs, together with the models used to analyse these interactions. These models vary between simple 2D in vitro models, to in vivo animal models, and also include complex all human organ on chip models which are able to recapitulate more accurately the interaction in the in vivo situation. Thereafter, commonly encountered NPs in both the environment and in biomedical applications and their possible effects on the immune system are discussed in more detail. Not all effects of NPs on the immune system are detrimental; in the final section, we review several promising strategies in which the immune response towards NPs can be exploited to suit specific applications such as vaccination and cancer immunotherapy.
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Affiliation(s)
- Kirsten Pondman
- Applied Microfluidics for BioEngineering Research, MESA+ Institute for Nanotechnology & TechMed Centre, University of Twente, Enschede, the Netherlands.
| | - Séverine Le Gac
- Applied Microfluidics for BioEngineering Research, MESA+ Institute for Nanotechnology & TechMed Centre, University of Twente, Enschede, the Netherlands
| | - Uday Kishore
- Biosciences, Brunel University London, Uxbridge, UK; Department of Veterinary Medicine, U.A.E. University, Al Ain, United Arab Emirates
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3
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Panico S, Capolla S, Bozzer S, Toffoli G, Dal Bo M, Macor P. Biological Features of Nanoparticles: Protein Corona Formation and Interaction with the Immune System. Pharmaceutics 2022; 14:pharmaceutics14122605. [PMID: 36559099 PMCID: PMC9781747 DOI: 10.3390/pharmaceutics14122605] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/10/2022] [Accepted: 11/17/2022] [Indexed: 11/29/2022] Open
Abstract
Nanoparticles (NPs) are versatile candidates for nanomedical applications due to their unique physicochemical properties. However, their clinical applicability is hindered by their undesirable recognition by the immune system and the consequent immunotoxicity, as well as their rapid clearance in vivo. After injection, NPs are usually covered with layers of proteins, called protein coronas (PCs), which alter their identity, biodistribution, half-life, and efficacy. Therefore, the characterization of the PC is for in predicting the fate of NPs in vivo. The aim of this review was to summarize the state of the art regarding the intrinsic factors closely related to the NP structure, and extrinsic factors that govern PC formation in vitro. In addition, well-known opsonins, including complement, immunoglobulins, fibrinogen, and dysopsonins, such as histidine-rich glycoprotein, apolipoproteins, and albumin, are described in relation to their role in NP detection by immune cells. Particular emphasis is placed on their role in mediating the interaction of NPs with innate and adaptive immune cells. Finally, strategies to reduce PC formation are discussed in detail.
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Affiliation(s)
- Sonia Panico
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Sara Capolla
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), 33081 Aviano, Italy
| | - Sara Bozzer
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), 33081 Aviano, Italy
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), 33081 Aviano, Italy
| | - Michele Dal Bo
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), 33081 Aviano, Italy
| | - Paolo Macor
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
- Correspondence: ; Tel.: +39-0405588683
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4
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Liu Q, Guan J, Song R, Zhang X, Mao S. Physicochemical properties of nanoparticles affecting their fate and the physiological function of pulmonary surfactants. Acta Biomater 2022; 140:76-87. [PMID: 34843949 DOI: 10.1016/j.actbio.2021.11.034] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/10/2021] [Accepted: 11/23/2021] [Indexed: 12/22/2022]
Abstract
Pulmonary drug delivery has drawn great attention due to its targeted local lung action, reduced side effects, and ease of administration. However, inhaled nanoparticles (NPs) could adsorb different pulmonary surfactants depending on their physicochemical properties, which may impair the physiological function of the pulmonary surfactants or alter the fate of the NPs. Thus, the objective of this review is to summarize how the physicochemical properties of NPs affecting the physiological function of pulmonary surfactants and their fate. First of all, the composition and characteristics of pulmonary surfactants, methods for studying pulmonary surfactant interaction with NPs are introduced. Thereafter, the influence of physicochemical properties of NPs on hydrophobic protein adsorption and strategies to decrease the interaction of NPs with pulmonary surfactants are discussed. Finally, the influence of physicochemical properties of NPs on lipids and hydrophilic protein adsorption and consequently their fate is described. In conclusion, a better understanding of the interaction of NPs with pulmonary surfactants will promote the faster development of safe and effective nanomedicine for pulmonary drug delivery. STATEMENT OF SIGNIFICANCE: Drug delivery carriers often face complex body fluid components after entering the human body. Pulmonary surfactants diffuse at the lung gas-liquid interface, and particles inevitably interact with pulmonary surfactants after pulmonary nanomedicine delivery. This review presents an overview of how the physicochemical properties of nanoparticles affecting their fate and physiological function of pulmonary surfactants. We believe that the information included in this review can provide important guiding for the development of safe and effective pulmonary delivery nanocarriers.
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5
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Valente SA, Silva LM, Lopes GR, Sarmento B, Coimbra MA, Passos CP. Polysaccharide-based formulations as potential carriers for pulmonary delivery - A review of their properties and fates. Carbohydr Polym 2022; 277:118784. [PMID: 34893219 DOI: 10.1016/j.carbpol.2021.118784] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/28/2021] [Accepted: 10/14/2021] [Indexed: 12/31/2022]
Abstract
Polysaccharides can be elite carriers for therapeutic molecules due to their versatility and low probability to trigger toxicity and immunogenic responses. Local and systemic therapies can be achieved through particle pulmonary delivery, a promising non-invasive alternative. Successful pulmonary delivery requires particles with appropriate flowability to reach alveoli and avoid premature clearance mechanisms. Polysaccharides can form micro-, nano-in-micro-, and large porous particles, aerogels, and hydrogels. Herein, the characteristics of polysaccharides used in drug formulations for pulmonary delivery are reviewed, providing insights into structure-function relationships. Charged polysaccharides can confer mucoadhesion, whereas the ability for specific sugar recognition may confer targeting capacity for alveolar macrophages. The method of particle preparation must be chosen considering the properties of the components and the delivery device to be utilized. The fate of polysaccharide-based carriers is dependent on enzyme-triggered hydrolytic and/or oxidative mechanisms, allowing their complete degradation and elimination through urine or reutilization of released monosaccharides.
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Affiliation(s)
- Sara A Valente
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Lisete M Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Guido R Lopes
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Bruno Sarmento
- INEB - Institute of Biomedical Engineering Instituto, University of Porto, 4150-180 Porto, Portugal; i3S - Institute for Research & Innovation in Health, University of Porto, 4150-180 Porto, Portugal; CESPU - Institute for Research and Advanced Training in Health Sciences and Technologies, 4585-116 Gandra, Portugal
| | - Manuel A Coimbra
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Cláudia P Passos
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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6
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Wang Q, Wang Q, Zhao Z, Fan J, Qin L, Alexander DB, Tsuda H, Zhao D, Xu J. Surfactant Proteins A/D-CD14 on Alveolar Macrophages Is a Common Pathway Associated With Phagocytosis of Nanomaterials and Cytokine Production. Front Immunol 2021; 12:758941. [PMID: 34777371 PMCID: PMC8578846 DOI: 10.3389/fimmu.2021.758941] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 10/07/2021] [Indexed: 12/12/2022] Open
Abstract
Alveolar macrophages are responsible for clearance of airborne dust and pathogens. How they recognize and phagocytose a variety of engineered nanomaterials (ENMs) with different properties is an important issue for safety assessment of ENMs. Surfactant-associated proteins, specifically existing in the pulmonary surfactant, are important opsonins for phagocytosis of airborne microorganisms. The purposes of the current study are to understand whether opsonization of ENMs by surfactant-associated proteins promotes phagocytosis of ENMs and cytokine production, and to determine whether a common pathway for phagocytosis of ENMs with different properties exists. For these purposes, four ENMs, MWCNT-7, TiO2, SiO2, and fullerene C60, with different shapes, sizes, chemical compositions, and surface reactivities, were chosen for this study. Short-term pulmonary exposure to MWCNT-7, TiO2, SiO2, and C60 induced inflammation in the rat lung, and most of the administered ENMs were phagocytosed by alveolar macrophages. The ENMs were phagocytosed by isolated primary alveolar macrophages (PAMs) in vitro, and phagocytosis was enhanced by rat bronchioalveolar lavage fluid (BALF), suggesting that proteins in the BALF were associated with phagocytosis. Analysis of proteins bound to the 4 ENMs by LC/MS indicated that surfactant-associated proteins A and D (SP-A, SP-D) were common binding proteins for all the 4 ENMs. Both BALF and SP-A, but not SP-D, enhanced TNF-α production by MWCNT-7 treated PAMs; BALF, SP-A, and SP-D increased IL-1β production in TiO2 and SiO2 treated PAMs; and BALF, SP-A, and SP-D enhanced IL-6 production in C60 treated PAMs. Knockdown of CD14, a receptor for SP-A/D, significantly reduced phagocytosis of ENMs and SP-A-enhanced cytokine production by PAMs. These results indicate that SP-A/D can opsonize all the test ENMs and enhance phagocytosis of the ENMs by alveolar macrophages through CD14, suggesting that SP-A/D-CD14 is a common pathway mediating phagocytosis of ENMs. Cytokine production induced by ENMs, however, is dependent on the type of ENM that is phagocytosed. Our results demonstrate a dual role for surfactant proteins as opsonins for both microbes and for inhaled dusts and fibers, including ENMs, allowing macrophages to recognize and remove the vast majority of these particles, thereby, greatly lessening their toxicity in the lung.
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Affiliation(s)
- Qiqi Wang
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.,Department of Clinical Laboratory, Anhui General Hospital of Chinese People's Armed Police Forces, Hefei, China
| | - Qiong Wang
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Ziyue Zhao
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Jingbo Fan
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Linghan Qin
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - David B Alexander
- Laboratory of Nanotoxicology Project, Nagoya City University, Nagoya, Japan
| | - Hiroyuki Tsuda
- Laboratory of Nanotoxicology Project, Nagoya City University, Nagoya, Japan
| | - Dahai Zhao
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Jiegou Xu
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.,Laboratory of Nanotoxicology Project, Nagoya City University, Nagoya, Japan
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7
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Khan HA, Kishore U, Alsulami HM, Alrokayan SH. Pro-Apoptotic and Immunotherapeutic Effects of Carbon Nanotubes Functionalized with Recombinant Human Surfactant Protein D on Leukemic Cells. Int J Mol Sci 2021; 22:ijms221910445. [PMID: 34638783 PMCID: PMC8508673 DOI: 10.3390/ijms221910445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/19/2021] [Accepted: 09/21/2021] [Indexed: 02/05/2023] Open
Abstract
Nanoparticles are efficient drug delivery vehicles for targeting specific organs as well as systemic therapy for a range of diseases, including cancer. However, their interaction with the immune system offers an intriguing challenge. Due to the unique physico-chemical properties, carbon nanotubes (CNTs) are considered as nanocarriers of considerable interest in cancer diagnosis and therapy. CNTs, as a promising nanomaterial, are capable of both detecting as well as delivering drugs or small therapeutic molecules to tumour cells. In this study, we coupled a recombinant fragment of human surfactant protein D (rfhSP-D) with carboxymethyl-cellulose (CMC) CNTs (CMC-CNT, 10-20 nm diameter) for augmenting their apoptotic and immunotherapeutic properties using two leukemic cell lines. The cell viability of AML14.3D10 or K562 cancer cell lines was reduced when cultured with CMC-mwCNT-coupled-rfhSP-D (CNT + rfhSP-D) at 24 h. Increased levels of caspase 3, 7 and cleaved caspase 9 in CNT + rfhSP-D treated AML14.3D10 and K562 cells suggested an involvement of an intrinsic pathway of apoptosis. CNT + rfhSP-D treated leukemic cells also showed higher mRNA expression of p53 and cell cycle inhibitors (p21 and p27). This suggested a likely reduction in cdc2-cyclin B1, causing G2/M cell cycle arrest and p53-dependent apoptosis in AML14.3D10 cells, while p53-independent mechanisms appeared to be in operation in K562 cells. We suggest that CNT + rfhSP-D has therapeutic potential in targeting leukemic cells, irrespective of their p53 status, and thus, it is worth setting up pre-clinical trials in animal models.
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Affiliation(s)
- Haseeb A. Khan
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (H.M.A.); (S.H.A.)
- Correspondence: ; Tel.: +966-11-4675859
| | - Uday Kishore
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK;
| | - Hamed M. Alsulami
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (H.M.A.); (S.H.A.)
| | - Salman H. Alrokayan
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (H.M.A.); (S.H.A.)
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8
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Papini E, Tavano R, Mancin F. Opsonins and Dysopsonins of Nanoparticles: Facts, Concepts, and Methodological Guidelines. Front Immunol 2020; 11:567365. [PMID: 33154748 PMCID: PMC7587406 DOI: 10.3389/fimmu.2020.567365] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/25/2020] [Indexed: 11/13/2022] Open
Abstract
Understanding the effects mediated by a set of nanoparticle (NP)-bound host biomolecules, often indicated with the umbrella term of NP corona, is essential in nanomedicine, nanopharmacology, and nanotoxicology. Among the NP-adsorbed proteome, some factors mediate cell binding, endocytosis, and clearing by macrophages and other phagocytes (opsonins), while some others display few affinities for the cell surface (dysopsonins). The functional mapping of opsonins and dysopsonins is instrumental to design long-circulating and nanotoxicologically safe next-generation nanotheranostics. In this review, we critically analyze functional data identifying specific proteins with opsonin or dysopsonin properties. Special attention is dedicated to the following: (1) the simplicity or complexity of the NP proteome and its modulation, (2) the role of specific host proteins in mediating the stealth properties of uncoated or polymer-coated NPs, and (3) the ability of the innate immune system, and, in particular, of the complement proteins, to mediate NP clearance by phagocytes. Emerging species-specific peculiarities, differentiating humans from preclinical animal models (the murine especially), are highlighted throughout this overview. The operative definition of opsonin and dysopsonin and the measurement schemes to assess their in vitro efficacy is critically re-examined. This provides a shared and unbiased approach useful for NP opsonin and dysopsonin systematic identification.
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Affiliation(s)
- Emanuele Papini
- Department of Biomedical Sciences, University of Padua, Padua, Italy.,Centre for Innovative Biotechnological Research, University of Padua, Padua, Italy
| | - Regina Tavano
- Department of Biomedical Sciences, University of Padua, Padua, Italy.,Centre for Innovative Biotechnological Research, University of Padua, Padua, Italy
| | - Fabrizio Mancin
- Department of Chemical Sciences, University of Padua, Padua, Italy
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9
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Lipid-Protein and Protein-Protein Interactions in the Pulmonary Surfactant System and Their Role in Lung Homeostasis. Int J Mol Sci 2020; 21:ijms21103708. [PMID: 32466119 PMCID: PMC7279303 DOI: 10.3390/ijms21103708] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 05/22/2020] [Accepted: 05/22/2020] [Indexed: 12/12/2022] Open
Abstract
Pulmonary surfactant is a lipid/protein complex synthesized by the alveolar epithelium and secreted into the airspaces, where it coats and protects the large respiratory air–liquid interface. Surfactant, assembled as a complex network of membranous structures, integrates elements in charge of reducing surface tension to a minimum along the breathing cycle, thus maintaining a large surface open to gas exchange and also protecting the lung and the body from the entrance of a myriad of potentially pathogenic entities. Different molecules in the surfactant establish a multivalent crosstalk with the epithelium, the immune system and the lung microbiota, constituting a crucial platform to sustain homeostasis, under health and disease. This review summarizes some of the most important molecules and interactions within lung surfactant and how multiple lipid–protein and protein–protein interactions contribute to the proper maintenance of an operative respiratory surface.
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10
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Lu SJ, Xu JH, He ZF, Wu P, Ning C, Li HY. Innate immune molecule surfactant protein D attenuates sepsis-induced acute kidney injury through modulating apoptosis and NFκB-mediated inflammation. Int Wound J 2019; 17:100-106. [PMID: 31701658 DOI: 10.1111/iwj.13237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/03/2019] [Accepted: 09/15/2019] [Indexed: 12/13/2022] Open
Abstract
The objective of this study is to investigate the mechanism whereby innate immune molecule surfactant protein D (SP-D) attenuates sepsis-induced acute kidney injury (AKI) through modulating apoptosis and nuclear factor kappa-B (NFκB)-mediated inflammation. In the present study, a mouse sepsis model was established by cecal ligation and puncture in SP-D knockout (KO) mice and wild-type (WT) mice. A sham-operated group was included as the control. The experimental materials were extracted 6 and 24 hours postoperatively. The plasma levels of tumour necrosis factor alpha (TNF-α) and MCP-1 were determined by enzyme-linked immunosorbent assay (ELISA). Apoptosis was measured by double staining with Annexin V/propidium iodide and flow cytometry. The levels of NFκB in renal tissues were measured by ELISA and Western blotting assay. Apoptosis was detected by TUNEL assays. There were no significant differences in plasma TNF-α levels between the WT sham group and the KO sham group at 6 and 24 hours postoperatively (P < .05), but the levels of TNF-α in the WT sepsis and KO sepsis groups were significantly higher than those in controls (P < .05). The levels of TNF-α in the KO sepsis group were significantly higher than those of the WT sepsis group (P < .05). TNF-α levels in the WT sepsis group and the KO sepsis group at 24 hours postoperatively were significantly higher than those at 6 hours postoperatively (P < .05). The levels of MCP-1 in the WT sepsis group and the KO sepsis group at 6 and 24 hours postoperatively were significantly higher than those in the control group (P < .05), and MCP-1 levels in the KO sepsis group were significantly higher than those in the WT sepsis group (P < .05). MCP-1 levels in the WT sepsis group and the KO sepsis group at 24 hours postoperatively were significantly higher than those at 6 hours postoperatively (P < .05). The expression of SP-D in WT kidneys was significantly lower at 6 and 24 hours postoperatively (P < .05). The number of TUNEL-positive cells in the kidneys from septic SP-D KO mice was significantly higher (P < .05). The levels of NFκB in septic mice were significantly increased at 6 and 24 hours after induction of sepsis compared with the sham-operated group compared with those of septic SP-D KO mice and WT mice (P < .05). Innate immune molecule SP-D significantly decreased plasma levels of inflammatory cytokines in mice and attenuated sepsis-induced AKI by inhibiting NFκB activity and apoptosis.
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Affiliation(s)
- Shi-Jun Lu
- Intensive Care Unit, Linyi Central Hospital, Linyi, Shandong, China
| | - Jian-Hua Xu
- Intensive Care Unit, Linyi Central Hospital, Linyi, Shandong, China
| | - Zhao-Feng He
- Intensive Care Unit, Ju County People's Hospital, Rizhao, Shandong, China
| | - Peng Wu
- Intensive Care Unit, Linyi Central Hospital, Linyi, Shandong, China
| | - Chao Ning
- Intensive Care Unit, Linyi Central Hospital, Linyi, Shandong, China
| | - Hai-Yan Li
- Intensive Care Unit, Linyi Central Hospital, Linyi, Shandong, China
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11
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Kong X, Liu Y, Huang X, Huang S, Gao F, Rong P, Zhang S, Zhang K, Zeng W. Cancer Therapy Based on Smart Drug Delivery with Advanced Nanoparticles. Anticancer Agents Med Chem 2019; 19:720-730. [PMID: 30747081 DOI: 10.2174/1871520619666190212124944] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/25/2019] [Accepted: 01/27/2019] [Indexed: 11/22/2022]
Abstract
Background:
Cancer, as one of the most dangerous disease, causes millions of deaths every year. The
main reason is the absence of an effective and thorough treatment. Drug delivery systems have significantly
reduced the side-effect of chemotherapy. Combined with nanotechnology, smart drug delivery systems including
many different nanoparticles can reduce the side-effect of chemotherapy better than traditional drug delivery
systems.
Methods:
In this article, we will describe in detail the different kinds of nanoparticles and their mechanisms
emphasizing the triggering factors in drug delivery. Besides, the application of smart drug delivery systems in
imaging will be introduced.
Results:
Combined with nanotechnology, smart drug delivery systems including many different nanoparticles
can reduce the side-effect of chemotherapy better than traditional drug delivery systems.
Conclusion:
Despite considerable progress in nanoparticle research over the past decade, such as smart drug
delivery systems for the treatment of cancer, molecular imaging probes and the like. The range of nanoparticles
used in multifunction systems for imaging and drug delivery continues to grow and we expect this dilatation to
continue. But to make nanoparticles truly a series of clinical products to complement and replace current tools,
constant exploration efforts and time are required. Overall, the future looks really bright.
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Affiliation(s)
- Xiangqi Kong
- Xiangya School of Pharmaceutical Sciences, Changsha, 410013, China
| | - Yi Liu
- Xiangya School of Pharmaceutical Sciences, Changsha, 410013, China
| | - Xueyan Huang
- Xiangya School of Pharmaceutical Sciences, Changsha, 410013, China
| | - Shuai Huang
- Xiangya School of Pharmaceutical Sciences, Changsha, 410013, China
| | - Feng Gao
- The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Pengfei Rong
- The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Shengwang Zhang
- The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Kexiang Zhang
- The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Wenbin Zeng
- Xiangya School of Pharmaceutical Sciences, Changsha, 410013, China
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12
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Kouser L, Paudyal B, Kaur A, Stenbeck G, Jones LA, Abozaid SM, Stover CM, Flahaut E, Sim RB, Kishore U. Human Properdin Opsonizes Nanoparticles and Triggers a Potent Pro-inflammatory Response by Macrophages without Involving Complement Activation. Front Immunol 2018; 9:131. [PMID: 29483907 PMCID: PMC5816341 DOI: 10.3389/fimmu.2018.00131] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 01/16/2018] [Indexed: 12/28/2022] Open
Abstract
Development of nanoparticles as tissue-specific drug delivery platforms can be considerably influenced by the complement system because of their inherent pro-inflammatory and tumorigenic consequences. The complement activation pathways, and its recognition subcomponents, can modulate clearance of the nanoparticles and subsequent inflammatory response and thus alter the intended translational applications. Here, we report, for the first time, that human properdin, an upregulator of the complement alternative pathway, can opsonize functionalized carbon nanotubes (CNTs) via its thrombospondin type I repeat (TSR) 4 and 5. Binding of properdin and TSR4+5 is likely to involve charge pattern/polarity recognition of the CNT surface since both carboxymethyl cellulose-coated carbon nanotubes (CMC-CNT) and oxidized (Ox-CNT) bound these proteins well. Properdin enhanced the uptake of CMC-CNTs by a macrophage cell line, THP-1, mounting a robust pro-inflammatory immune response, as revealed by qRT-PCR, multiplex cytokine array, and NF-κB nuclear translocation analyses. Properdin can be locally synthesized by immune cells in an inflammatory microenvironment, and thus, its interaction with nanoparticles is of considerable importance. In addition, recombinant TSR4+5 coated on the CMC-CNTs inhibited complement consumption by CMC-CNTs, suggesting that nanoparticle decoration with TSR4+5, can be potentially used as a complement inhibitor in a number of pathological contexts arising due to exaggerated complement activation.
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Affiliation(s)
- Lubna Kouser
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Basudev Paudyal
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
- Faculty of Science, Engineering and Computing, Kingston University, Kingston upon Thames, Surrey, United Kingdom
| | - Anuvinder Kaur
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Gudrun Stenbeck
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Lucy A. Jones
- Faculty of Science, Engineering and Computing, Kingston University, Kingston upon Thames, Surrey, United Kingdom
| | - Suhair M. Abozaid
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Cordula M. Stover
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Emmanuel Flahaut
- Université de Toulouse, CNRS, INPT, UPS, UMR CNRS-UPS-INP N°5085, 3 Paul Sabatier, Bât. CIRIMAT, Toulouse, France
| | - Robert B. Sim
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Uday Kishore
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
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13
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Pondman KM, Salvador-Morales C, Paudyal B, Sim RB, Kishore U. Interactions of the innate immune system with carbon nanotubes. NANOSCALE HORIZONS 2017; 2:174-186. [PMID: 32260639 DOI: 10.1039/c6nh00227g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The therapeutic application of nanomaterials requires that they are biocompatible and can reach the desired target. The innate immune system is likely to be the first defence machinery that would recognise the nanomaterials as 'non-self'. A number of studies have addressed the issue of how carbon nanotubes (CNTs) interact with phagocytic cells and their surface receptors that can impact on their intracellular processing and subsequent immune response. In addition, soluble innate immune factors also get involved in the recognition and clearance of CNTs. The interaction of CNTs with the complement system, the most potent and versatile innate immune mechanism, has shed interesting light on how complement activation on the surface of CNTs can modulate their phagocytosis and effector cytokine response. The charge or altered molecular pattern on the surface of CNTs due to functionalization and derivatization can also dictate the level of complement activation and subsequent inflammatory response. It is becoming evident that complement deposition may facilitate phagocytic uptake of CNTs through receptor routes that leads to dampening of pro-inflammatory response by complement-receptor bearing macrophages and B cells. Thus, recombinant complement regulators decorated on the CNT surface can constructively influence the therapeutic strategies involving CNTs and other nanoparticles.
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Affiliation(s)
- Kirsten M Pondman
- Department of Life Sciences, College of Health and Life Sciences, Heinz Wolff Building, Brunel University London, Uxbridge UB8 3PH, UK.
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