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Kumar M, Mehan S, Kumar A, Sharma T, Khan Z, Tiwari A, Das Gupta G, Narula AS. Therapeutic efficacy of Genistein in activation of neuronal AC/cAMP/CREB/PKA and mitochondrial ETC-Complex pathways in experimental model of autism: Evidence from CSF, blood plasma and brain analysis. Brain Res 2024:149251. [PMID: 39384128 DOI: 10.1016/j.brainres.2024.149251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 09/10/2024] [Accepted: 09/22/2024] [Indexed: 10/11/2024]
Abstract
Autism is a complex neurodevelopmental condition characterized by repetitive behaviors, impaired social communication, and various associated conditions such as depression and anxiety. Its multifactorial etiology includes genetic, environmental, dietary, and gastrointestinal contributions. Pathologically, Autism is linked to mitochondrial dysfunction, oxidative stress, neuroinflammation, and neurotransmitter imbalances involving GABA, glutamate, dopamine, and oxytocin. Propionic acid (PRPA) is a short-chain fatty acid produced by gut bacteria, influencing central nervous system functions. Elevated PRPA levels can exacerbate Autism-related symptoms by disrupting metabolic processes and crossing the blood-brain barrier. Our research investigates the neuroprotective potential of Genistein (GNT), an isoflavone compound with known benefits in neuropsychiatric and neurodegenerative disorders, through modulation of the AC/cAMP/CREB/PKA signaling pathway and mitochondrial ETC complex (I-IV) function. In silico analyses revealed GNT's high affinity for these targets. Subsequent in vitro and in vivo experiments using a PRPA-induced rat model of autism demonstrated that GNT (40 and 80 mg/kg., orally) significantly improves locomotion, neuromuscular coordination, and cognitive functions in PRPA-treated rodents. Behavioral assessments showed reduced immobility in the forced swim test, enhanced Morris water maze performance, and restored regular locomotor activity. On a molecular level, GNT restored levels of key signaling molecules (AC, cAMP, CREB, PKA) and mitochondrial complexes (I-V), disrupted by PRPA exposure. Additionally, GNT reduced neuroinflammation and apoptosis, normalized neurotransmitter levels, and improved the complete blood count profile. Histopathological analyses confirmed that GNT ameliorated PRPA-induced brain injuries, restored normal brain morphology, reduced demyelination, and promoted neurogenesis. The study supports GNT's potential in autism treatment by modulating neural pathways, reducing inflammation, and restoring neurotransmitter balance.
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Affiliation(s)
- Manjeet Kumar
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India; Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India
| | - Sidharth Mehan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India; Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India.
| | - Aakash Kumar
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India; Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India
| | - Tarun Sharma
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India; Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India
| | - Zuber Khan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India; Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India
| | - Aarti Tiwari
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India; Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India
| | - Ghanshyam Das Gupta
- Affiliated to IK Gujral Punjab Technical University, Jalandhar, Punjab 144603, India; Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, India
| | - Acharan S Narula
- Narula Research, LLC, 107 Boulder Bluff, Chapel Hill, NC 27516, USA
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Liu W, Berge-Lefranc D, Chaspoul F, Slaveykova VI. Cytochrome c - silver nanoparticle interactions: Spectroscopy, thermodynamic and enzymatic activity studies. Chem Biol Interact 2023; 382:110647. [PMID: 37499996 DOI: 10.1016/j.cbi.2023.110647] [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: 06/21/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 07/29/2023]
Abstract
Cytochrome c, an iron containing metalloprotein in the mitochondria of the cells with an oxide/redox property, plays key role in the cell apoptotic pathway. In this study, the interaction of silver nanoparticles (AgNPs) with cytochrome c (Cyt c) was investigated by using a combination of spectroscopic, imaging and thermodynamic techniques, including dynamic light scattering (DLS), ultraviolet-visible (UV-vis) spectroscopy, transmission electron microscopy (TEM), fluorescence spectroscopy, near and far circular dichroism (CD) spectroscopy, and isothermal titration calorimetry (ITC). DLS and UV-vis analysis evidenced the formation of surface complexes of Cyt c on AgNPs. The saturation of surface coverage of AgNPs was observed at 4.36 Cyt c molecules per nm2 of AgNPs. The surface complexation resulted in a promotion of the Ag dissolution overtime. The negative sign of enthalpic (ΔH) contribution suggested that electrostatic forces are indicative forces in the interaction between protein and AgNPs. Moreover, the fluorescence spectra revealed that the conformation of protein was altered around tryptophan (Trp) and tyrosine (Tyr) residues indicating the alteration of the tertiary structure of Cyt c. CD analysis evidenced that the secondary structure of Cyt c was modified under AgNPs-Cyt c interactions and the binding of Cyt c onto AgNPs resulted in remarkable structural perturbation around the active site heme, which in turn alter the protein enzymatic activity. The results of the present study contributed to a deeper insight on the mechanisms of interaction between NPs and biomacromolecules and could help establish the in vivo fate of AgNPs on cellular redox homeostasis.
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Affiliation(s)
- Wei Liu
- University of Geneva, Faculty of Sciences, Department F.-A. Forel for Environmental and Aquatic Sciences, Switzerland.
| | - David Berge-Lefranc
- ICR UMR Aix Marseille Université - CNRS 7273, IMBE UMR Aix Marseille Université - CNRS - IRD - AUPV 7263, France
| | - Florence Chaspoul
- ICR UMR Aix Marseille Université - CNRS 7273, IMBE UMR Aix Marseille Université - CNRS - IRD - AUPV 7263, France
| | - Vera I Slaveykova
- University of Geneva, Faculty of Sciences, Department F.-A. Forel for Environmental and Aquatic Sciences, Switzerland
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3
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Cytochrome c in cancer therapy and prognosis. Biosci Rep 2022; 42:232225. [PMID: 36479932 PMCID: PMC9780037 DOI: 10.1042/bsr20222171] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/01/2022] [Accepted: 12/08/2022] [Indexed: 12/13/2022] Open
Abstract
Cytochrome c (cyt c) is an electron transporter of the mitochondrial respiratory chain. Upon permeabilization of the mitochondrial outer membrane, cyt c is released into the cytoplasm, where it triggers the intrinsic pathway of apoptosis. Cytoplasmic cyt c can further reach the bloodstream. Apoptosis inhibition is one of the hallmarks of cancer and its induction in tumors is a widely used therapeutic approach. Apoptosis inhibition and induction correlate with decreased and increased serum levels of cyt c, respectively. The quantification of cyt c in the serum is useful in the monitoring of patient response to chemotherapy, with potential prognosis value. Several highly sensitive biosensors have been developed for the quantification of cyt c levels in human serum. Moreover, the delivery of exogenous cyt c to the cytoplasm of cancer cells is an effective approach for inducing their apoptosis. Similarly, several protein-based and nanoparticle-based systems have been developed for the therapeutic delivery of cyt c to cancer cells. As such, cyt c is a human protein with promising value in cancer prognosis and therapy. In addition, its thermal stability can be extended through PEGylation and ionic liquid storage. These processes could contribute to enhancing its therapeutic exploitation in clinical facilities with limited refrigeration conditions. Here, I discuss these research lines and how their timely conjunction can advance cancer therapy and prognosis.
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Che F, Zhao J, Zhao Y, Wang Z, Zhang L, Yang Y. A Novel Heterozygous Pathogenic Variation in CYCS Gene Cause Autosomal Dominant Non-Syndromic Thrombocytopenia 4 in a Large Chinese Family. Front Genet 2022; 12:783455. [PMID: 35126455 PMCID: PMC8811603 DOI: 10.3389/fgene.2021.783455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 12/06/2021] [Indexed: 11/23/2022] Open
Abstract
Aim: To determine the etiology of a Chinese family with thrombocytopenia by analyzing the clinical features and genetic variation. Methods: Clinical profiles and genomic DNA extracts of the family members were collected for the study. Whole exome sequencing and Sanger sequencing was used to detect the associated genetic variation and verify the family co-segregation respectively. Bioinformatics analysis assessed the pathogenicity of missense mutations. Results: The study reported a 3-generation pedigree including eight family members with thrombocytopenia. The platelet counts of the patients were varied, ranging from 38 to 110 × 109/L (reference range: 150–450 x 109/L). The mean volumes and morphology of the sampled platelet were both normal. The bleeding abnormality and mitochondriopathy were not observed in all the patients. Clinical signs of thrombocytopenia were mild. A novel heterozygous missense variant c.79C > T (p.His27Tyr) was identified in CYCS gene associated with autosomal dominant thrombocytopenia. Conclusion: We report the first large family with autosomal dominant non-syndromic thrombocytopenia 4 in a Chinese family, a novel heterozygous missense variant c.79C > T (p.His27Tyr) was identified. The whole exome sequencing is an efficient tool for screening the variants specifically associated with the disease. The finding enriches the mutation spectrum of CYCS gene and laid a foundation for future studies on the correlation between genotype and phenotype.
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Affiliation(s)
- Fengyu Che
- Shaanxi Institute for Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, China
| | - Jiangang Zhao
- Department of Neonatology, Xi’an Children’s Hospital, Xi’an, China
| | - Yujuan Zhao
- Department of Neonatology, Xi’an Children’s Hospital, Xi’an, China
| | - Zhi Wang
- Department of Neonatology, Xi’an Children’s Hospital, Xi’an, China
| | - Liyu Zhang
- Shaanxi Institute for Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, China
| | - Ying Yang
- Shaanxi Institute for Pediatric Diseases, Xi’an Children’s Hospital, Xi’an, China
- *Correspondence: Ying Yang,
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Niu P, Sun Y, Wang S, Li G, Tang X, Sun J, Pan C, Sun J. Puerarin alleviates the ototoxicity of gentamicin by inhibiting the mitochondria‑dependent apoptosis pathway. Mol Med Rep 2021; 24:851. [PMID: 34651662 PMCID: PMC8532108 DOI: 10.3892/mmr.2021.12491] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 09/22/2021] [Indexed: 11/24/2022] Open
Abstract
Gentamicin (GM) is a commonly used antibiotic, and ototoxicity is one of its side effects. Puerarin (PU) is an isoflavone in kudzu roots that exerts a number of pharmacological effects, including antioxidative and free radical scavenging effects. The present study investigated whether PU could protect against GM-induced ototoxicity in C57BL/6J mice and House Ear Institute-Organ of Corti 1 (HEI-OC1) cells. C57BL/6J mice and HEI-OC1 cells were used to establish models of GM-induced ototoxicity in this study. Auditory brainstem responses were measured to assess hearing thresholds, and microscopy was used to observe the morphology of cochlear hair cells after fluorescent staining. Cell viability was examined with Cell Counting Kit-8 assays. To evaluate cell apoptosis and reactive oxygen species (ROS) production, TUNEL assays, reverse transcription-quantitative PCR, DCFH-DA staining, JC-1 staining and western blotting were performed. PU protected against GM-induced hearing damage in C57BL/6J mice. PU ameliorated the morphological changes of mouse cochlear hair cells and reduced the apoptosis rate of HEI-OC1 cells after GM-mediated damage. GM-induced ototoxicity may be closely related to the upregulation of p53 expression and the activation of endogenous mitochondrial apoptosis pathways, and PU could protect cochlear hair cells from GM-mediated damage by reducing the production of ROS and inhibiting the mitochondria-dependent apoptosis pathway.
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Affiliation(s)
- Ping Niu
- Department of Otolaryngology‑Head and Neck Surgery, Anhui Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Yuxuan Sun
- Department of Otolaryngology‑Head and Neck Surgery, Anhui Provincial Hospital, Hefei, Anhui 230001, P.R. China
| | - Shiyi Wang
- Department of Otolaryngology‑Head and Neck Surgery, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Guang Li
- Department of Otolaryngology‑Head and Neck Surgery, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Xiaomin Tang
- Department of Otolaryngology‑Head and Neck Surgery, Anhui Provincial Hospital, Hefei, Anhui 230001, P.R. China
| | - Jiaqiang Sun
- Department of Otolaryngology‑Head and Neck Surgery, Anhui Provincial Hospital, Hefei, Anhui 230001, P.R. China
| | - Chunchen Pan
- Department of Otolaryngology‑Head and Neck Surgery, Anhui Provincial Hospital, Hefei, Anhui 230001, P.R. China
| | - Jingwu Sun
- Department of Otolaryngology‑Head and Neck Surgery, Anhui Provincial Hospital, Hefei, Anhui 230001, P.R. China
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Li M, Sun W, Tyurin VA, DeLucia M, Ahn J, Kagan VE, van der Wel PCA. Activation of Cytochrome C Peroxidase Function Through Coordinated Foldon Loop Dynamics upon Interaction with Anionic Lipids. J Mol Biol 2021; 433:167057. [PMID: 34033821 DOI: 10.1016/j.jmb.2021.167057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/07/2021] [Accepted: 05/13/2021] [Indexed: 02/06/2023]
Abstract
Cardiolipin (CL) is a mitochondrial anionic lipid that plays important roles in the regulation and signaling of mitochondrial apoptosis. CL peroxidation catalyzed by the assembly of CL-cytochrome c (cyt c) complexes at the inner mitochondrial membrane is a critical checkpoint. The structural changes in the protein, associated with peroxidase activation by CL and different anionic lipids, are not known at a molecular level. To better understand these peripheral protein-lipid interactions, we compare how phosphatidylglycerol (PG) and CL lipids trigger cyt c peroxidase activation, and correlate functional differences to structural and motional changes in membrane-associated cyt c. Structural and motional studies of the bound protein are enabled by magic angle spinning solid state NMR spectroscopy, while lipid peroxidase activity is assayed by mass spectrometry. PG binding results in a surface-bound state that preserves a nativelike fold, which nonetheless allows for significant peroxidase activity, though at a lower level than binding its native substrate CL. Lipid-specific differences in peroxidase activation are found to correlate to corresponding differences in lipid-induced protein mobility, affecting specific protein segments. The dynamics of omega loops C and D are upregulated by CL binding, in a way that is remarkably controlled by the protein:lipid stoichiometry. In contrast to complete chemical denaturation, membrane-induced protein destabilization reflects a destabilization of select cyt c foldons, while the energetically most stable helices are preserved. Our studies illuminate the interplay of protein and lipid dynamics in the creation of lipid peroxidase-active proteolipid complexes implicated in early stages of mitochondrial apoptosis.
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Affiliation(s)
- Mingyue Li
- Department of Structural Biology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Wanyang Sun
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15213, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Vladimir A Tyurin
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15213, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Maria DeLucia
- Department of Structural Biology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Jinwoo Ahn
- Department of Structural Biology, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Valerian E Kagan
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA 15213, USA; Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15213, USA; Institute for Regenerative Medicine, IM Sechenov, Moscow State Medical University, Moscow 119146, Russian Federation
| | - Patrick C A van der Wel
- Department of Structural Biology, University of Pittsburgh, Pittsburgh, PA 15213, USA; Zernike Institute for Advanced Materials, University of Groningen, Groningen, the Netherlands.
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7
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Hirota S, Nagao S. New Aspects of Cytochromec: 3D Domain Swapping, Membrane Interaction, Peroxidase Activity, and Met80 Sulfoxide Modification. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200272] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Shun Hirota
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Satoshi Nagao
- Graduate School of Life Science, University of Hyogo, 3-2-1 Koto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
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Khan SH, Prakash A, Pandey P, Islam A, Hassan MI, Lynn AM, Ahmad F. Effects of natural mutations (L94I and L94V) on the stability and mechanism of folding of horse cytochrome c: A combined in vitro and molecular dynamics simulations approach. Int J Biol Macromol 2020; 159:976-985. [PMID: 32439437 DOI: 10.1016/j.ijbiomac.2020.05.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/08/2020] [Accepted: 05/09/2020] [Indexed: 12/13/2022]
Abstract
Known crystal structures of 10 cytochromes (cyts) c from different sources led to the conclusion that natural mutations in these proteins does not affect their 3D structure, hence evolution preserved structure for function. A sequence alignment of horse cyt c with all other 284 cyts c led to two important conclusions: (i) Leu at position 94 is conserved in all 30 mammalian known sequences, and (ii) there are 14 other species which have either Val or Ile at 94th position. We asked a question: Is the avoidance of substitution by Val or Ile at position 94 in the mammalian cyts c by design or by chance? To answer this question, we introduced natural substitutes of Leu94 by Val and Ile in horse cyt c using site-directed mutagenesis. Here, from our in vitro and molecular dynamic simulation studies on L94V and L94I mutants, we concluded that (i) although the natural mutations destabilize the wild type cyt c, it does not significantly affect the mechanism of folding of the protein, (ii) urea-induced denaturation of WT cyt c and its mutants is a two-state process, and (iii) denaturation of WT cyt c and its mutants by guanidinium chloride is not a two-state process.
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Affiliation(s)
- Sabab Hasan Khan
- Centre for Interdisciplinary research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Amresh Prakash
- Amity Institute of Integrative Sciences and Health, Amity University Haryana, Gurgaon 122413, India
| | - Preeti Pandey
- School of Computational & Integrative Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Asimul Islam
- Centre for Interdisciplinary research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Andrew M Lynn
- School of Computational & Integrative Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Faizan Ahmad
- Centre for Interdisciplinary research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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9
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Bio-inspired drug-dominated supramolecular nanocomplex based on low molecular weight heparin for progressive tumor therapy. Carbohydr Polym 2019; 220:30-42. [DOI: 10.1016/j.carbpol.2019.05.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/14/2019] [Accepted: 05/14/2019] [Indexed: 01/25/2023]
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10
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Xie R, Lian S, Peng H, OuYang C, Li S, Lu Y, Cao X, Zhang C, Xu J, Jia L. Mitochondria and Nuclei Dual-Targeted Hollow Carbon Nanospheres for Cancer Chemophotodynamic Synergistic Therapy. Mol Pharm 2019; 16:2235-2248. [PMID: 30896172 DOI: 10.1021/acs.molpharmaceut.9b00259] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Dual-targeted nanoparticles are gaining increasing importance as a more effective anticancer strategy by attacking double key sites of tumor cells, especially in chemophotodynamic therapy. To retain the nuclei inhibition effect and enhance doxorubicin (DOX)-induced apoptosis by mitochondrial pathways simultaneously, we synthesized the novel nanocarrier (HKH) based on hollow carbon nitride nanosphere (HCNS) modified with hyaluronic acid (HA) and the mitochondrial localizing peptide D[KLAKLAK]2 (KLA). DOX-loaded HKH nanoparticles (HKHDs) showed satisfactory drug-loading efficiency, excellent solubility, and very low hemolytic effect. HA/CD44 binding and electrostatic attraction between positively charged KLA and A549 cells facilitated HKHD uptake via the endocytosis mechanism. Acidic microenvironment, hyaluronidase, and KLA targeting together facilitate doxorubicin toward the mitochondria and nuclei, resulting in apoptosis, DNA intercalation, cell-cycle arrest at the S phase, and light-induced reactive oxygen species production. Intravascular HKHD inhibited tumor growth in A549-implanted mice with good safety. The present study, for the first time, systemically reveals biostability, targetability, chemophotodynamics, and safety of the functionalized novel HKHD.
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Affiliation(s)
- Ruizhi Xie
- Cancer Metastasis Alert and Prevention Center, College of Chemistry, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy , Fuzhou University , Fuzhou , Fujian 350116 , China
| | - Shu Lian
- Cancer Metastasis Alert and Prevention Center, College of Chemistry, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy , Fuzhou University , Fuzhou , Fujian 350116 , China
| | - Huayi Peng
- College of Pharmacy , Fujian Medical University , Fuzhou 350116 , China
| | - Changhe OuYang
- Cancer Metastasis Alert and Prevention Center, College of Chemistry, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy , Fuzhou University , Fuzhou , Fujian 350116 , China
| | - Shuhui Li
- Cancer Metastasis Alert and Prevention Center, College of Chemistry, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy , Fuzhou University , Fuzhou , Fujian 350116 , China
| | - Yusheng Lu
- Cancer Metastasis Alert and Prevention Center, College of Chemistry, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy , Fuzhou University , Fuzhou , Fujian 350116 , China
- Institute of Oceanography , Minjiang University , Fuzhou , Fujian 350108 , China
| | - Xuning Cao
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , Fuzhou 350002 , China
| | - Chen Zhang
- Institute of Oceanography , Minjiang University , Fuzhou , Fujian 350108 , China
| | - Jianhua Xu
- College of Pharmacy , Fujian Medical University , Fuzhou 350116 , China
| | - Lee Jia
- Cancer Metastasis Alert and Prevention Center, College of Chemistry, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy , Fuzhou University , Fuzhou , Fujian 350116 , China
- Institute of Oceanography , Minjiang University , Fuzhou , Fujian 350108 , China
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Wang Y, Yang F, Jiao FZ, Chen Q, Zhang WB, Wang LW, Gong ZJ. Modulations of Histone Deacetylase 2 Offer a Protective Effect through the Mitochondrial Apoptosis Pathway in Acute Liver Failure. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:8173016. [PMID: 31183000 PMCID: PMC6512023 DOI: 10.1155/2019/8173016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 03/19/2019] [Accepted: 03/24/2019] [Indexed: 12/16/2022]
Abstract
The purpose of this study was to investigate the modulation of histone deacetylase 2 (HDAC2) on mitochondrial apoptosis in acute liver failure (ALF). The cellular model was established with LO2 cells stimulated by tumor necrosis factor alpha (TNF-α)/D-galactosamine (D-gal). Rats were administrated by lipopolysaccharide (LPS)/D-gal as animal model. The cell and animal models were then treated by HDAC2 inhibitor CAY10683. HDAC2 was regulated up or down by lentiviral vector transfection in LO2 cells. The mRNA levels of bcl2 and bax were detected by real-time PCR. The protein levels of HDAC2, bcl2, bax, cytochrome c (cyt c) in mitochondrion and cytosol, apoptosis protease activating factor 1 (apaf1), caspase 3, cleaved-caspase 3, caspase 9, cleaved-caspase 9, acetylated histone H3 (AH3), and histone H3 (H3) were assayed by western blot. Apoptosis was detected by flow cytometry. The serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), and total bilirubin (TBIL) levels were also assayed. The openness degree of the mitochondrial permeability transition pore (MPTP) was detected by ultraviolet spectrophotometry. The apoptosis of hepatocytes in liver tissues was determined by tunnel staining. The liver tissue pathology was detected by hematoxylin eosin (HE) staining. The ultrastructure of liver tissue was observed by electron microscopy. Compared with cell and rat model groups, the bax mRNA level was decreased, and bcl2 mRNA was increased in the CAY10683 treatment group. The protein levels of HDAC2, bax, cyt c in cytosol, apaf1, cleaved-caspase 3, and cleaved-caspase 9 were decreased, and the apoptosis rate was decreased (P < 0.05), whereas the protein level of bcl2 and cyt c in the mitochondrion was elevated (P < 0.05) in the CAY10683 treatment group. In the HDAC2 down- or upregulated LO2 cells, the mitochondrial apoptosis pathway was inhibited or activated, respectively. After being treated with TNF-α/D-gal in HDAC2 down- or upregulated LO2 cells, the mitochondrial apoptosis pathway was further suppressed or activated, respectively. The MPTP value was elevated in CAY10683-treated groups compared with the rat model group (P < 0.05). Liver tissue pathological damage and apoptotic index in the CAY10683-treated group were significantly reduced. In addition, AH3 was elevated in both cell and animal model groups (P < 0.05). Downregulated or overexpressed HDAC2 could accordingly increase or decrease the AH3 level, and TNF-α/D-gal could enhance the acetylation effect. These results suggested that modulations of histone deacetylase 2 offer a protective effect through the mitochondrial apoptosis pathway in acute liver failure.
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Affiliation(s)
- Yao Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Fan Yang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Fang-Zhou Jiao
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qian Chen
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wen-Bin Zhang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lu-Wen Wang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zuo-Jiong Gong
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, China
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Reductive nitrosylation of ferric microperoxidase-11. J Biol Inorg Chem 2018; 24:21-29. [PMID: 30390140 DOI: 10.1007/s00775-018-1623-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 10/08/2018] [Indexed: 10/28/2022]
Abstract
Microperoxidase-11 (MP11) is an undecapeptide derived from horse heart cytochrome c, which is considered as a heme-protein model. Here, the reductive nitrosylation of ferric MP11 (MP11(III)) under anaerobic conditions has been investigated between pH 7.4 and 9.2, at T = 20.0 °C. At pH ≤ 7.7, NO binds reversibly to MP11(III) leading to the formation of the MP11(III)-NO complex. However, between pH 8.2 and 9.2, the addition of NO to MP11(III) leads to the formation of ferrous nitrosylated MP11(II) (MP11(II)-NO). In fact, the transient MP11{FeNO}6 species is converted to ferrous deoxygenated MP11 (MP11(II)) by OH-- and H2O-based catalysis, which represents the rate-limiting step of the whole reaction. Then, MP11(II) binds NO very rapidly leading to MP11(II)-NO formation. Over the whole pH range explored, the apparent values of kon, koff, and K (= koff/kon) for MP11(III)(-NO) (de)nitrosylation are essentially pH independent, ranging between 5.8 × 105 M-1 s-1 and 1.6 × 106 M-1 s-1, between 1.9 s-1 and 3.7 s-1, and between 1.4 × 10-6 M and 4.6 × 10-6 M, respectively. Values of the apparent pseudo-first-order rate constant for the MP11{FeNO}6 conversion to MP11(II) (i.e., h) increase linearly with pH; the apparent values [Formula: see text] and [Formula: see text] are 7.2 × 102 M-1 s-1 and 2.5 × 10-4 s-1, respectively. Present data confirm that MP11 is a useful molecular model to highlight the role of the protein matrix on the heme-based reactivity.
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Xiong H, Du S, Zhang P, Jiang Z, Zhou J, Yao J. Primary tumor and pre-metastatic niches co-targeting “peptides-lego” hybrid hydroxyapatite nanoparticles for metastatic breast cancer treatment. Biomater Sci 2018; 6:2591-2604. [DOI: 10.1039/c8bm00706c] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Hybrid hydroxyapatite nanoparticles orchestrating tumor metastasis resisting therapy (TMRT) and tumor metastasis targeting therapy (TMTT).
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Affiliation(s)
- Hui Xiong
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Shi Du
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Ping Zhang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Zhijie Jiang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Jianping Zhou
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Jing Yao
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Druggability of Biopharmaceuticals
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
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14
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Molano-Arevalo JC, Dit Fouque KJ, Pham K, Miksovska J, Ridgeway ME, Park MA, Fernandez-Lima F. Characterization of Intramolecular Interactions of Cytochrome c Using Hydrogen-Deuterium Exchange-Trapped Ion Mobility Spectrometry-Mass Spectrometry and Molecular Dynamics. Anal Chem 2017; 89:8757-8765. [PMID: 28742962 PMCID: PMC5653375 DOI: 10.1021/acs.analchem.7b00844] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Globular proteins, such as cytochrome c (cyt c), display an organized native conformation, maintained by a hydrogen bond interaction network. In the present work, the structural interrogation of kinetically trapped intermediates of cyt c was performed by correlating the ion-neutral collision cross section (CCS) and charge state with the starting solution conditions and time after desolvation using collision induced activation (CIA), time-resolved hydrogen/deuterium back exchange (HDX) and trapped ion mobility spectrometry-mass spectrometry (TIMS-MS). The high ion mobility resolving power of the TIMS analyzer allowed the identification of new ion mobility bands, yielding a total of 63 mobility bands over the +6 to +21 charge states and 20 mobility bands over the -5 to -10 charge states. Mobility selected HDX rates showed that for the same charge state, conformers with larger CCS present faster HDX rates in both positive and negative ion mode, suggesting that the charge sites and neighboring exchange sites on the accessible surface area define the exchange rate regardless of the charge state. Complementary molecular dynamic simulations permitted the generation of candidate structures and a mechanistic model of the folding transitions from native (N) to molten globule (MG) to kinetic intermediates (U) pathways. Our results suggest that cyt c major structural unfolding is associated with the distancing of the N- and C-terminal helices and subsequent solvent exposure of the hydrophobic, heme-containing cavity.
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Affiliation(s)
| | - Kevin Jeanne Dit Fouque
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, USA
| | - Khoa Pham
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, USA
| | - Jaroslava Miksovska
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, USA
- Biomolecular Sciences Institute, Florida International University, Miami, FL 33199
| | | | - Melvin A. Park
- Bruker Daltonics, Inc., Billerica, Massachusetts, 01821, USA
| | - Francisco Fernandez-Lima
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, USA
- Biomolecular Sciences Institute, Florida International University, Miami, FL 33199
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Yin S, Cui H, Peng X, Fang J, Zuo Z, Deng J, Wang X, Wu B, Guo H. Toxic effect of NiCl2 on development of the bursa of Fabricius in broiler chickens. Oncotarget 2016; 7:125-39. [PMID: 26683707 PMCID: PMC4807987 DOI: 10.18632/oncotarget.6591] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 11/28/2015] [Indexed: 01/10/2023] Open
Abstract
This study was conducted with objective of evaluating the toxic effects of nickel chloride (NiCl2) on development of bursa of Fabricius in broilers fed on diets supplemented with 0, 300, 600 and 900 mg/kg of NiCl2 for 42 days by using the methods of experimental pathology, flow cytometry (FCM), and quantitative real-time polymerase chain reaction (qRT-PCR). The results showed that dietary NiCl2 in 300 mg/kg and over induced toxic suppression in the bursal development, which was characterized by decreasing lymphocytes histopathologically and relative weight, increasing G0/G1 phase (a prolonged nondividing state), reducing S phase (DNA replication) and proliferating index, and increasing percentages of apoptotic cells. Concurrently, the mRNA expression levels of bax, cytochrome c (cyt c), apoptotic peptidase activating factor 1 (Apaf-1), caspase-3, caspase-6, caspase-7 and caspase-9 were increased and the bcl-2 mRNA expression levels were decreased. The toxic suppression of bursal development finally impaired humoral immunity duo to the reduction of B lymphocyte population and B lymphocyte activity in the broiler chicken. This study provides new evidences for further studying the effect mechanism of Ni and Ni compoundson B-cell or bursa of Fabricius.
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Affiliation(s)
- Shuang Yin
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Ya'an, Sichuan, China
| | - Hengmin Cui
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Ya'an, Sichuan, China.,College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - Xi Peng
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Ya'an, Sichuan, China.,College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - Jing Fang
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Ya'an, Sichuan, China.,College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - Zhicai Zuo
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Ya'an, Sichuan, China.,College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - Junliang Deng
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Ya'an, Sichuan, China.,College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - Xun Wang
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Ya'an, Sichuan, China.,College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - Bangyuan Wu
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Ya'an, Sichuan, China
| | - Hongrui Guo
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Ya'an, Sichuan, China
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16
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Wang Y, Cai B, Shao J, Wang TT, Cai RZ, Ma CJ, Han T, Du J. Genistein suppresses the mitochondrial apoptotic pathway in hippocampal neurons in rats with Alzheimer's disease. Neural Regen Res 2016; 11:1153-8. [PMID: 27630702 PMCID: PMC4994461 DOI: 10.4103/1673-5374.187056] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Genistein is effective against amyloid-β toxicity, but the underlying mechanisms are unclear. We hypothesized that genistein may protect neurons by inhibiting the mitochondrial apoptotic pathway, and thereby play a role in the prevention of Alzheimer’s disease. A rat model of Alzheimer’s disease was established by intraperitoneal injection of D-galactose and intracerebral injection of amyloid-β peptide (25–35). In the genistein treatment groups, a 7-day pretreatment with genistein (10, 30, 90 mg/kg) was given prior to establishing Alzheimer’s disease model, for 49 consecutive days. Terminal deoxyribonucleotidyl transferase-mediated dUTP nick end labeling assay demonstrated a reduction in apoptosis in the hippocampus of rats treated with genistein. Western blot analysis showed that expression levels of capase-3, Bax and cytochrome c were decreased compared with the model group. Furthermore, immunohistochemical staining revealed reductions in cytochrome c and Bax immunoreactivity in these rats. Morris water maze revealed a substantial shortening of escape latency by genistein in Alzheimer’s disease rats. These findings suggest that genistein decreases neuronal loss in the hippocampus, and improves learning and memory ability. The neuroprotective effects of genistein are associated with the inhibition of the mitochondrial apoptotic pathway, as shown by its ability to reduce levels of caspase-3, Bax and cytochrome c.
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Affiliation(s)
- Yan Wang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, China; Institute of Integrated Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui Province, China
| | - Biao Cai
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, China; Institute of Integrated Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui Province, China
| | - Jing Shao
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, China; Institute of Integrated Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui Province, China
| | - Ting-Ting Wang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, China; Institute of Integrated Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui Province, China
| | - Run-Ze Cai
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Chang-Ju Ma
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Tao Han
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Jun Du
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
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17
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Xiong H, Du S, Ni J, Zhou J, Yao J. Mitochondria and nuclei dual-targeted heterogeneous hydroxyapatite nanoparticles for enhancing therapeutic efficacy of doxorubicin. Biomaterials 2016; 94:70-83. [PMID: 27105438 DOI: 10.1016/j.biomaterials.2016.04.004] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/02/2016] [Accepted: 04/06/2016] [Indexed: 12/18/2022]
Abstract
Dual-targeted nanoparticles have been increasingly used to realize greater anti-proliferation effect by attacking double key sites of tumor cells. In order to retain nuclei inhibition effect and enhance DOX-induced apoptosis by mitochondrial pathway simultaneously, hyaluronic acid (HA) modified hydroxyapatite (HAP) nanoparticles (HAP-HA), the functional calcium-based tumor targeting nanoparticles, have been developed. In this nanosystem, HA acts as an active tumor-targeting ligand to bind the CD44 receptors which are overexpressed on the surface of tumor cells while HAP can load and deliver DOX to both nuclei and mitochondria of tumor cells. In this study, DOX-loaded HAP-HA nanoparticles (DOX/HAP-HA) exhibited satisfactory drug loading efficiency which was up to 214.55 ± 51.05 μg mg(-1) and showed a uniform nano-scaled particle size. The mitochondrial and nuclei targetability of DOX/HAP-HA was confirmed by confocal laser scanning microscopy analyses. Besides, western blot assay demonstrated that DOX/HAP-HA could markedly enhance mitochondrial cytochrome C leakage and thereby activate apoptotic cascade associated with it. In addition, in vivo anti-tumor efficacy and toxicity evaluation of DOX/HAP-HA indicated that DOX/HAP-HA was more effective and less harmful compared to other groups. DOX/HAP-HA might be a new promising targeted delivery system for effective cancer therapy.
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Affiliation(s)
- Hui Xiong
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Shi Du
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jiang Ni
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jianping Zhou
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jing Yao
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China.
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18
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Ascenzi P, Sbardella D, Fiocchetti M, Santucci R, Coletta M. NO2−-mediated nitrosylation of ferrous microperoxidase-11. J Inorg Biochem 2015; 153:121-127. [DOI: 10.1016/j.jinorgbio.2015.06.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 06/03/2015] [Accepted: 06/30/2015] [Indexed: 11/29/2022]
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19
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Kagan VE, Tyurina YY, Tyurin VA, Mohammadyani D, Angeli JPF, Baranov SV, Klein-Seetharaman J, Friedlander RM, Mallampalli RK, Conrad M, Bayir H. Cardiolipin signaling mechanisms: collapse of asymmetry and oxidation. Antioxid Redox Signal 2015; 22:1667-80. [PMID: 25566681 PMCID: PMC4486147 DOI: 10.1089/ars.2014.6219] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
SIGNIFICANCE An ancient anionic phospholipid, cardiolipin (CL), ubiquitously present in prokaryotic and eukaryotic membranes, is essential for several structural and functional purposes. RECENT ADVANCES The emerging role of CLs in signaling has become the focus of many studies. CRITICAL ISSUES In this work, we describe two major pathways through which mitochondrial CLs may fulfill the signaling functions via utilization of their (i) asymmetric distribution across membranes and translocations, leading to the surface externalization and (ii) ability to undergo oxidation reactions to yield the signature products recognizable by the executionary machinery of cells. FUTURE DIRECTIONS We present a concept that CLs and their oxidation/hydrolysis products constitute a rich communication language utilized by mitochondria of eukaryotic cells for diversified regulation of cell physiology and metabolism as well as for inter-cellular interactions.
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Affiliation(s)
- Valerian E Kagan
- 1Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania.,2Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania.,3Department of Radiation Oncology, University of Pittsburgh, Pittsburgh, Pennsylvania.,4Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yulia Y Tyurina
- 1Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Vladimir A Tyurin
- 1Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Dariush Mohammadyani
- 5Department of Bioengineering, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jose Pedro Friedmann Angeli
- 6Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Sergei V Baranov
- 7Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Judith Klein-Seetharaman
- 8Division of Metabolic and Vascular Health, Medical School, University of Warwick, Coventry, United Kingdom
| | | | - Rama K Mallampalli
- 9Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, and VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania
| | - Marcus Conrad
- 6Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Developmental Genetics, Neuherberg, Germany
| | - Hülya Bayir
- 10Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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Ascenzi P, Leboffe L, Santucci R, Coletta M. Ferric microperoxidase-11 catalyzes peroxynitrite isomerization. J Inorg Biochem 2015; 144:56-61. [DOI: 10.1016/j.jinorgbio.2014.12.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 12/10/2014] [Accepted: 12/10/2014] [Indexed: 11/24/2022]
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21
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Márquez J, Cházaro-Ruiz LF, Zimányi L, Palestino G. Immobilization strategies and electrochemical evaluation of porous silicon based cytochrome c electrode. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.05.065] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Capdevila DA, Marmisollé WA, Williams FJ, Murgida DH. Phosphate mediated adsorption and electron transfer of cytochrome c. A time-resolved SERR spectroelectrochemical study. Phys Chem Chem Phys 2013; 15:5386-94. [PMID: 23000972 DOI: 10.1039/c2cp42044a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The study of proteins immobilized on biomimetic or biocompatible electrodes represents an active field of research as it pursues both fundamental and technological interests. In this context, adsorption and redox properties of cytochrome c (Cyt) on different electrode surfaces have been extensively reported, although in some cases with contradictory results. Here we report a SERR spectroelectrochemical study of the adsorption and electron transfer behaviour of the basic protein Cyt on electrodes coated with amino-terminated monolayers. The obtained results show that inorganic phosphate (Pi) and ATP anions are able to mediate high affinity binding of the protein with preservation of the native structure and rendering an average orientation that guarantees efficient pathways for direct electron transfer. These findings aid the design of Cyt-based bioelectronic devices and understanding the modulation by Pi and ATP of physiological functions of Cyt.
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Affiliation(s)
- Daiana A Capdevila
- Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires and CONICET, Buenos Aires, Argentina
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Lin YW, Sawyer EB, Wang J. Rational heme protein design: all roads lead to Rome. Chem Asian J 2013; 8:2534-44. [PMID: 23704071 DOI: 10.1002/asia.201300291] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Indexed: 01/03/2023]
Abstract
Heme proteins are among the most abundant and important metalloproteins, exerting diverse biological functions including oxygen transport, small molecule sensing, selective C-H bond activation, nitrite reduction, and electron transfer. Rational heme protein designs focus on the modification of the heme-binding active site and the heme group, protein hybridization and domain swapping, and de novo design. These strategies not only provide us with unique advantages for illustrating the structure-property-reactivity-function (SPRF) relationship of heme proteins in nature but also endow us with the ability to create novel biocatalysts and biosensors.
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Affiliation(s)
- Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001 (China)
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Lin YW, Sun MH, Wan D, Liao LF. Observation of heme transfer from cytochrome b5 to DNA aptamer. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:365-369. [PMID: 22717695 DOI: 10.1016/j.saa.2012.05.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 05/12/2012] [Accepted: 05/25/2012] [Indexed: 06/01/2023]
Abstract
Heme transfer is commonly observed from one heme protein to the other such as from cytochrome b(5) (cyt b(5)) to apo-myoglobin. In this study, instead of to another heme protein, we observed the heme transfer from wild-type (WT) cyt b(5), H39C cyt b(5) with heme axial ligand His39 mutated to Cys39, and DME cyt b(5) with heme replaced by protoporphyrin IX dimethyl ester, to a heme DNA aptamer, PS2.M, respectively, with a different rate constant. The heme transfer was further confirmed by the enhancement of peroxidase activity of the cyt b(5)s-PS2.M system due to the formation of catalytic PS2.M-heme complex. This study provides valuable insights into both cyt b(5)-heme and PS2.M-heme interactions and shows that heme transfer from heme protein to heme-aptamer can be used to evaluate the relative stability of heme proteins. In addition, this study sheds light on the maturation of heme proteins in vivo by interacting with DNA/RNA enzymes.
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Affiliation(s)
- Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.
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Fan J, Zhang N, Yin G, Zhang Z, Cheng G, Qian W, Long H, Cai W. Edaravone protects cortical neurons from apoptosis by inhibiting the translocation of BAX and Increasing the interaction between 14-3-3 and p-BAD. Int J Neurosci 2012; 122:665-74. [PMID: 22757651 DOI: 10.3109/00207454.2012.707714] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Edaravone, a free radical scavenger, has shown neuroprotection properties in both animals and humans. To evaluate the mechanisms involved, we obtained a culture of almost pure neurons. The neurons, either untreated or prophylactically treated with edaravone, were exposed to 300 μM hydrogen peroxide. We examined alterations in mitochondria, the percent of apoptotic cells and the immunoblots of key regulatory proteins, and the protein-protein interactions and the cellular locations of cytochrome c. The levels of p-JNK (Thr183/Tyr185) and cytochrome c in cytosol and BAX in heavy membrane (HM), respectively, were increased at 0.5 h and reached the peak at 12 h after stimulation with hydrogen peroxide. The levels of p-BAD and BAX in the cytosol and the interaction between BAD and 14-3-3 were decreased in the untreated neurons. However, edaravone could prevent these changes. In addition, mitochondrial morphology was better preserved and the percentage of apoptosis was lower under the treatment with edaravone. In summary, the present study indicates that edaravone could protect neurons by inhibiting: (1) the activity of JNK, (2) the disassociation of BAD from 14-3-3, and (3) the translocation of BAX from cytosol to mitochondria.
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Affiliation(s)
- Jin Fan
- The First Affiliated Hospital of Nanjing Medical University, Jiangsu, China
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Wächtler M, Guthmuller J, González L, Dietzek B. Analysis and characterization of coordination compounds by resonance Raman spectroscopy. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.02.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Zorov DB, Plotnikov EY, Jankauskas SS, Isaev NK, Silachev DN, Zorova LD, Pevzner IB, Pulkova NV, Zorov SD, Morosanova MA. The phenoptosis problem: What is causing the death of an organism? Lessons from acute kidney injury. BIOCHEMISTRY (MOSCOW) 2012; 77:742-53. [DOI: 10.1134/s0006297912070073] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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28
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Zaragoza A, Teruel JA, Aranda FJ, Marqués A, Espuny MJ, Manresa Á, Ortiz A. Interaction of a Rhodococcus sp. trehalose lipid biosurfactant with model proteins: thermodynamic and structural changes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:1381-90. [PMID: 22172005 DOI: 10.1021/la203879t] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
One major application of surfactants is to prevent aggregation during various processes of protein manipulation. In this work, a bacterial trehalose lipid (TL) with biosurfactant activity, secreted by Rhodococcus sp., has been identified and purified. The interactions of this glycolipid with selected model proteins have been studied by using differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, isothermal titration calorimetry (ITC), and fluorescence spectroscopy. Bovine serum albumin (BSA) and cytochrome c (Cyt-c) have been chosen because of their quite different secondary structures: BSA contains essentially no β-sheets and an average 66% α-helix, whereas Cyt-c possesses up to 25% β-sheets and up to 45% α-helical structure. Differential scanning calorimetry shows that addition of TL to BSA at concentrations below the critical micelle concentration (cmc) shifts the thermal unfolding temperature to higher values. FTIR indicates that TL does not alter the secondary structure of native BSA, but the presence of TL protects the protein toward thermal denaturation, mainly by avoiding formation of β-aggregates. Studies on the intrinsic Trp fluorescence of BSA show that addition of TL to the native protein results in conformational changes. BSA unfolding upon thermal denaturation in the absence of TL makes the Trp residues less accessible to the quencher, as shown by a decrease in the value of Stern-Volmer dynamic quenching constant, whereas denaturation in the presence of the biosurfactant prevents unfolding, in agreement with FTIR results. In the case of Cyt-c, interaction with TL gives rise to a new thermal denaturation transition, as observed by DSC, at temperatures below that of the native protein, therefore facilitating thermal unfolding. Binding of TL to native BSA and Cyt-c, as determined by ITC, suggests a rather nonspecific interaction of the biosurfactant with both proteins. FTIR indicates that TL slightly modifies the secondary structure of native Cyt-c, but protein denaturation in the presence of TL results in a higher proportion of β-aggregates than in its absence (20% vs 3.9%). The study of Trp fluorescence upon TL addition to Cyt-c results in a completely opposite scenario to that described above for BSA. In this case, addition of TL considerably increases the value of the dynamic quenching constant, both in native and denatured protein; that is, the interaction with the glycolipid induces conformational changes which facilitate the exposure of Trp residues to the quencher. Considering the structures of both proteins, it could be derived that the characteristics of TL interactions, either promoting or avoiding thermal unfolding, are highly dependent on the protein secondary structure. Our results also suggest the rather unspecific nature of these interactions. These might well involve protein hydrophobic domains which, being buried into the protein native structures, become exposed upon thermal unfolding.
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Affiliation(s)
- Ana Zaragoza
- Departamento de Bioquímica y Biología Molecular-A, Facultad de Veterinaria, Universidad de Murcia , E-30100 Murcia, Spain
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Molecular modeling of cytochrome b 5 with a single cytochrome c-like thioether linkage. J Mol Model 2011; 18:1553-60. [DOI: 10.1007/s00894-011-1189-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Accepted: 07/14/2011] [Indexed: 10/17/2022]
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