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Mehrotra P, Jablonski J, Toftegard J, Zhang Y, Shahini S, Wang J, Hung CW, Ellis R, Kayal G, Rajabian N, Liu S, Roballo K, Udin SB, Andreadis ST, Personius KE. Skeletal muscle reprogramming enhances reinnervation after peripheral nerve injury. Res Sq 2024:rs.3.rs-3463557. [PMID: 38260278 PMCID: PMC10802751 DOI: 10.21203/rs.3.rs-3463557/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Peripheral Nerve Injuries (PNI) affect more than 20 million Americans and severely impact quality of life by causing long-term disability. The onset of PNI is characterized by nerve degeneration distal to the nerve injury resulting in long periods of skeletal muscle denervation. During this period, muscle fibers atrophy and frequently become incapable of "accepting" innervation because of the slow speed of axon regeneration post injury. We hypothesize that reprogramming the skeletal muscle to an embryonic-like state may preserve its reinnervation capability following PNI. To this end, we generated a mouse model in which NANOG, a pluripotency-associated transcription factor can be expressed locally upon delivery of doxycycline (Dox) in a polymeric vehicle. NANOG expression in the muscle upregulated the percentage of Pax7+ nuclei and expression of eMYHC along with other genes that are involved in muscle development. In a sciatic nerve transection model, NANOG expression led to upregulation of key genes associated with myogenesis, neurogenesis and neuromuscular junction (NMJ) formation, and downregulation of key muscle atrophy genes. Further, NANOG mice demonstrated extensive overlap between synaptic vesicles and NMJ acetylcholine receptors (AChRs) indicating restored innervation. Indeed, NANOG mice showed greater improvement in motor function as compared to wild-type (WT) animals, as evidenced by improved toe-spread reflex, EMG responses and isometric force production. In conclusion, we demonstrate that reprogramming the muscle can be an effective strategy to improve reinnervation and functional outcomes after PNI.
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Affiliation(s)
- Pihu Mehrotra
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - James Jablonski
- Department of Department of Rehabilitation Science, University at Buffalo, Buffalo, NY 14214, USA
| | - John Toftegard
- Department of Biomedical Engineering, University at Buffalo, NY, Buffalo, NY 14260, USA
| | - Yali Zhang
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14203, USA
| | - Shahryar Shahini
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Jianmin Wang
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14203, USA
| | - Carey W Hung
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, Blacksburg, VA 24060, USA
| | - Reilly Ellis
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, Blacksburg, VA 24060, USA
| | - Gabriella Kayal
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, Blacksburg, VA 24060, USA
| | - Nika Rajabian
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Song Liu
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14203, USA
| | - Kelly Roballo
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, Blacksburg, VA 24060, USA
- Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA 24060, USA
| | - Susan B. Udin
- Department of Physiology and Biophysics, University at Buffalo, Amherst, NY 14203, USA
| | - Stelios T. Andreadis
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
- Department of Biomedical Engineering, University at Buffalo, NY, Buffalo, NY 14260, USA
- Center of Excellence in Bioinformatics and Life Sciences, Buffalo, NY 14203, USA
- Center for Cell, Gene and Tissue Engineering (CGTE), University at Buffalo, Buffalo, NY 14260, USA
| | - Kirkwood E. Personius
- Department of Department of Rehabilitation Science, University at Buffalo, Buffalo, NY 14214, USA
- Center for Cell, Gene and Tissue Engineering (CGTE), University at Buffalo, Buffalo, NY 14260, USA
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Peruri A, Morgan A, D’Souza A, Mellon B, Hung CW, Kayal G, Shin H, Nguyen K, Zahed M, Yount M, Ellis R, Wynne T, Fritz V, Simmons Z, Roballo KCS. Pineal Gland from the Cell Culture to Animal Models: A Review. Life (Basel) 2022; 12:life12071057. [PMID: 35888145 PMCID: PMC9317964 DOI: 10.3390/life12071057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/05/2022] [Accepted: 07/12/2022] [Indexed: 12/11/2022]
Abstract
This review demonstrates current literature on pineal gland physiology, pathology, and animal model experiments to concisely explore future needs in research development with respect to pineal gland function and neuro-regenerative properties. The pineal gland plays an integral role in sleep and recovery by promoting physiologic circadian rhythms via production and release of melatonin. Yet, the current literature shows that the pineal gland has neuroprotective effects that modulate both peripheral and central nerve injuries through several direct and indirect mechanisms, such as angiogenesis and induction of growth factors and anti-inflammatory mediators. Animal models have also shown correlations between pineal gland function and metabolic homeostasis. Studies have shown that a functional pineal gland is essential in preventing and slowing the progression of certain diseases such as diabetes, osteoporosis, vertebral osteoarthritis, and neurodegenerative processes. Lastly, the array of cell culturing methods and animal models that can be used to further develop the study of pineal gland function and nervous system injury were reviewed.
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Affiliation(s)
- Alekhya Peruri
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Alexandra Morgan
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Alida D’Souza
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Bridget Mellon
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Carey W. Hung
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Gabriella Kayal
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Haejung Shin
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Kim Nguyen
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Malek Zahed
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Mason Yount
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Reilly Ellis
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Taylor Wynne
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Virginia Fritz
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Zachary Simmons
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
| | - Kelly C. S. Roballo
- Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, 2265 Kraft Drive, Blacksburg, VA 24060, USA; (A.P.); (A.M.); (A.D.); (B.M.); (C.W.H.); (G.K.); (H.S.); (K.N.); (M.Z.); (M.Y.); (R.E.); (T.W.); (V.F.); (Z.S.)
- Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Virginia Tech, 1410 Prices Fork, Blacksburg, VA 24060, USA
- Correspondence:
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Keith RE, Azcarate JM, Keith MJ, Hung CW, Badakhsh MF, Dumas TC. Direct Intracellular Signaling by the Carboxy terminus of NMDA Receptor GluN2 Subunits Regulates Dendritic Morphology in Hippocampal CA1 Pyramidal Neurons. Neuroscience 2019; 396:138-153. [PMID: 30471357 PMCID: PMC6311441 DOI: 10.1016/j.neuroscience.2018.11.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/16/2018] [Accepted: 11/14/2018] [Indexed: 12/22/2022]
Abstract
N-methyl-d-aspartate receptors (NMDARs) are glutamatergic receptors that take part in excitatory synaptic transmission and drive functional and structural neuronal plasticity, including activity-dependent changes in dendritic morphology. Forebrain NMDARs contribute to neuronal plasticity in at least two ways: through calcium-mediated processes or via direct intracellular postsynaptic signaling. Both properties are regulated by the GluN2 subunits. However, the separate contributions of these properties to the regulation of dendritic morphology are unknown. We created transgenic mice that express chimeric GluN2 subunits and examined the impact on pyramidal cell dendritic morphology in hippocampal region CA1. Golgi-Cox impregnation and transgenic expression of green fluorescent protein were employed to visualize dendritic arbors. In adult mice with a predominantly native GluN2A background, overexpression of the GluN2B carboxy terminus increased the total path of the dendritic arbor without affecting branch number or tortuosity. Overexpressing the amino terminus and transmembrane domains of GluN2B had little effect. It may be inferred from these results that NMDAR-dependent intracellular signaling regulates dendritic morphology of hippocampal pyramidal cells more so than calcium conductance dynamics. The findings add to the understanding of NMDAR-mediated signaling in hippocampal neurons and support re-investigation of the molecular underpinnings of NMDAR involvement in postnatal dendrite maturation.
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Affiliation(s)
- Rachel E Keith
- Interdisciplinary Program in Neuroscience, George Mason University, Fairfax, VA 22030, United States; Krasnow Institute of Advanced Study, George Mason University, Fairfax, VA 22030, United States
| | - Jessica M Azcarate
- Krasnow Institute of Advanced Study, George Mason University, Fairfax, VA 22030, United States
| | - Matthew J Keith
- Krasnow Institute of Advanced Study, George Mason University, Fairfax, VA 22030, United States
| | - Carey W Hung
- Krasnow Institute of Advanced Study, George Mason University, Fairfax, VA 22030, United States
| | - Maryam F Badakhsh
- Krasnow Institute of Advanced Study, George Mason University, Fairfax, VA 22030, United States
| | - Theodore C Dumas
- Psychology Department, George Mason University, Fairfax, VA 22030, United States; Interdisciplinary Program in Neuroscience, George Mason University, Fairfax, VA 22030, United States; Krasnow Institute of Advanced Study, George Mason University, Fairfax, VA 22030, United States.
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Wan KS, Wu WF, Chen TC, Wu CS, Hung CW, Chang YS. Comparison of amoxicillin + clavulanate with or without intranasal fluticasone for the treatment of uncomplicated acute rhinosinusitis in children. Minerva Pediatr 2015; 67:489-494. [PMID: 26530491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
AIM Intranasal corticosteroids (INS) have been proven effective in controlling postnasal drip, decreasing inflammatory response, reducing nasal swelling, and increasing aeration of the sinuses such that INS are recommended as treatment of sinusitis. METHODS Fifty children with acute rhinosinusitis, 50 children with acute rhiniosinusitis and allergic rhinitis (AR), and 20 rhiniosinusitis children as control were selected for investigation. Each group had a single-blind treatment of three types: with coamoxiclav only, with coamoxiclav plus INS, and with matched placebo (without antibiotics and INS) for two weeks. Nasal symptoms were then evaluated. The outcome was measured by using major symptom score (MSS) after treatment for 14 days. RESULTS Therapeutic effectiveness was 92% in rhinosinusitis patients treated with co-amoxiclav and 84% in those treated with co-amoxiclav plus INS. Among patients with sinusitis combined with AR, therapeutic efficacy was 88% for those treated with co-amoxiclav and 96% for those treated with co-amoxiclav plus INS. Only 30% of the symptoms were reduced in the placebo group. CONCLUSION There are no statistical differences in the acute sinusitis group treated with co-amoxiclav with or without INS. In the sinusitis with AR group, the efficacy of co-amoxiclav with INS is higher than in children treated with co-amoxiclav alone.
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Affiliation(s)
- K S Wan
- Department of Pediatrics, Taipei City Hospital, Renai Branch, Taiwan -
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Tsai CF, Hung CW, Lirng JF, Wang SJ, Fuh JL. Differences in brain metabolism associated with agitation and depression in Alzheimer's disease. East Asian Arch Psychiatry 2013; 23:86-90. [PMID: 24088401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE Agitation and depression are among the commonest behavioural and psychological symptoms exhibited by Alzheimer's disease patients. However, their pathophysiology remains unclear. We therefore investigated the relationship between the brain metabolism in the posterior cingulate gyrus and the dorsolateral prefrontal cortex, and agitation and depression in patients diagnosed with Alzheimer's disease. METHODS We recruited 26 patients (14 women and 12 men) with a mean age of 75 years and probable Alzheimer's disease. All patients completed the Mini-Mental State Examination (MMSE), the Geriatric Depression Scale-Short Form (GDS) assessment, and the Cohen-Mansfield Agitation Inventory (CMAI) in order to evaluate cognition, depression, and agitation, respectively. All subjects underwent magnetic resonance imaging and (1)H-magnetic resonance spectroscopy of the brain. The ratios of N-acetylaspartate (NAA), choline (Cho), and myo-inositol (mI) to creatine (Cr) in the posterior cingulate gyrus and the dorsolateral prefrontal cortex were measured and compared with neuropsychological test results. RESULTS The MMSE scores correlated positively with the NAA/Cr ratio in the left posterior cingulate gyrus (r = 0.56; p = 0.001). The CMAI scores correlated negatively with the NAA/Cr ratio in the left posterior cingulate gyrus (r = -0.46; p = 0.02). The GDS scores correlated positively with the Cho/Cr ratio in the left dorsolateral prefrontal cortex (r = 0.59; p = 0.01), and mI/Cr in both left (r = 0.47; p = 0.03) and right (r = 0.47; p = 0.03) cingulate gyri. CONCLUSIONS Agitation and depression levels correlated with different neurochemical metabolites in specific brain areas. We conclude that various neuropsychiatric symptoms might have separate pathophysiologies.
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Affiliation(s)
- C F Tsai
- Department of Psychiatry, Taipei Veterans General Hospital; Institute of Brain Science / Faculty of Medicine / Brain Research Center, National Yang-Ming University Schools of Medicine, Taipei, Taiwan
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Liao PC, Li CM, Hung CW, Chen SH. Quantitative detection of N(7)-(2-hydroxyethyl)guanine adducts in DNA using high-performance liquid chromatography/electrospray ionization tandem mass spectrometry. J Mass Spectrom 2001; 36:336-343. [PMID: 11312526 DOI: 10.1002/jms.132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
High-performance liquid chromatography (HPLC) was combined with electrospray ionization tandem mass spectrometry (ESI-MS/MS) to develop a sensitive and selective method for the quantitative measurement of N(7)-(2-hydroxyethyl)guanine (N(7)-HEG) adducts in DNA obtained from ethylene oxide-exposed biological samples. Selected reaction monitoring (SRM) was used as the detection mode while the fragmentation product ion at m/z 152 generated from the precursor protonated N(7)-HEG (m/z 196) was monitored. The detection limits for N(7)-HEG were estimated by twofold serial dilution and determined to be 4 fmol in neat standard solution and 16 fmol when a matrix effect is considered. When the mass spectrometer was operated in the selected ion monitoring mode using only the first quadrupole (without MS/MS function), the detection limits increased to 128 fmol and 1 pmol (when matrix effect is considered), respectively. A good linear correlation (R(2) = 0.999) was observed for signal intensities obtained by injecting 16 fmol--33 pmol of N(7)-HEG into the HPLC/ESI-MS/MS system. Hep G2 cells were incubated for 8 h with medium containing various concentrations of ethylene oxide (ranging from 0.05 to 5.0 mM). A dose-response relationship was established, indicating that the adduct formation increases with the exposure level. The method shows potential, although the detection limit needs to be lowered for practical applications, for use in monitoring N(7)-HEG formation in other biological systems.
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Affiliation(s)
- P C Liao
- Department of Environmental and Occupational Health, National Cheng Kung Medical College, Tainan 70101, Taiwan.
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