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Duryee MJ, Dusad A, Hunter CD, Kharbanda KK, Bruenjes JD, Easterling KC, Siebler JC, Thiele GM, Chakkalakal DA. N-Acetyl Cysteine Treatment Restores Early Phase Fracture Healing in Ethanol-Fed Rats. Alcohol Clin Exp Res 2018; 42:1206-1216. [PMID: 29698568 DOI: 10.1111/acer.13765] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 04/19/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Fracture healing in alcoholics is delayed and often associated with infections resulting in prolonged rehabilitation. It has been reported that binge drinking of alcohol increases oxidative stress and delays fracture healing in rats, which is prevented by treatment with the antioxidant n-acetyl cysteine (NAC). Oxidative stress is a significant factor in pathologies of various organs resulting from chronic alcoholism. Therefore, we hypothesize that treatment with NAC reduces oxidative stress and restores fracture healing in chronic alcoholics. METHODS Rats (10 months old) were pair-fed the Lieber-DeCarli ethanol (EtOH) diet or control diet for 16 weeks. A closed fracture was performed and rats allowed to recover for 72 hours. Rats were divided into 4 groups-control, control + NAC, EtOH, and EtOH + NAC-and injected intraperitoneally with 200 mg/kg of NAC daily for 3 days. Serum and bone fracture callus homogenates were collected and assayed for traditional markers of inflammation, oxidative stress, and bone regeneration. RESULTS The oxidative stress marker malondialdehyde (MDA) was increased in both serum and bone tissue in EtOH-fed animals compared to controls. NAC treatment significantly (p < 0.01) reduced MDA to near normal levels and dramatically increased the index of antioxidant efficacy (catalase/MDA ratio) (p < 0.01). Inflammatory markers tumor necrosis factor-α, interferon-γ, and interleukin-6 were significantly decreased in serum and callus following NAC treatment. NAC treatment reduced EtOH-induced bone resorption as evidenced by significant decreases in C-telopeptide of type-I-collagen levels (p < 0.05) and band-5 tartrate-resistant acid phosphatase levels in the tissue (p < 0.001). CONCLUSIONS Oxidative stress and excessive inflammation are involved in the inhibition of fracture healing by EtOH. In this study, early short-term treatment of EtOH-fed animals with the antioxidant NAC reduced oxidative stress and normalized the innate immune response to fracture in the early phase of fracture healing, thereby restoring the normal onset of bone regeneration.
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Affiliation(s)
- Michael J Duryee
- Veteran Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,Department of Internal Medicine , Division of Rheumatology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Anand Dusad
- Veteran Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,Department of Internal Medicine , Division of Rheumatology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Carlos D Hunter
- Veteran Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,Department of Internal Medicine , Division of Rheumatology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kusum K Kharbanda
- Veteran Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,Department of Internal Medicine , Division of Gastroenterology-Hepatology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Joseph D Bruenjes
- Department of Surgery , Creighton University Medical Center, Omaha, Nebraska
| | - Karen C Easterling
- Veteran Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,Department of Internal Medicine , Division of Rheumatology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Justin C Siebler
- Veteran Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,Department of Surgery , Creighton University Medical Center, Omaha, Nebraska.,Department of Orthopedic Surgery , University of Nebraska Medical Center, Omaha, Nebraska
| | - Geoffrey M Thiele
- Veteran Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,Department of Internal Medicine , Division of Rheumatology, University of Nebraska Medical Center, Omaha, Nebraska.,Department of Pathology and Microbiology , University of Nebraska Medical Center, Omaha, Nebraska
| | - Dennis A Chakkalakal
- Veteran Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,Department of Surgery , Creighton University Medical Center, Omaha, Nebraska.,Department of Orthopedic Surgery , University of Nebraska Medical Center, Omaha, Nebraska
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2
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Wells A, Romberger DJ, Thiele GM, Wyatt TA, Staab E, Heires AJ, Klassen LW, Duryee MJ, Mikuls TR, Dusad A, West WW, Wang D, Poole JA. Systemic IL-6 Effector Response in Mediating Systemic Bone Loss Following Inhalation of Organic Dust. J Interferon Cytokine Res 2016; 37:9-19. [PMID: 27875664 DOI: 10.1089/jir.2016.0048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Airway and skeletal diseases are prominent among agriculture workers. Repetitive inhalant exposures to agriculture organic dust extract (ODE) induces bone deterioration in mice; yet the mechanisms responsible for connecting the lung-bone inflammatory axis remain unclear. We hypothesized that the interleukin (IL)-6 effector response regulates bone deterioration following inhalant ODE exposures. Using an established intranasal inhalation exposure model, wild-type (WT) and IL-6 knockout (KO) mice were treated daily with ODE or saline for 3 weeks. ODE-induced airway neutrophil influx, cytokine/chemokine release, and lung pathology were not reduced in IL-6 KO animals compared to WT mice. Utilizing micro-computed tomography, analysis of tibia showed that loss of bone mineral density, volume, and deterioration of bone micro-architecture, and mechanical strength induced by inhalant ODE exposures in WT mice were absent in IL-6 KO animals. Compared to saline treatments, bone-resorbing osteoclasts and bone marrow osteoclast precursor populations were also increased in ODE-treated WT but not IL-6 KO mice. These results show that the systemic IL-6 effector pathway mediates bone deterioration induced by repetitive inhalant ODE exposures through an effect on osteoclasts, but a positive role for IL-6 in the airway was not demonstrated. IL-6 might be an important link in explaining the lung-bone inflammatory axis.
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Affiliation(s)
- Adam Wells
- 1 Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - Debra J Romberger
- 1 Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska.,2 Veterans Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska
| | - Geoffrey M Thiele
- 2 Veterans Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,3 Rheumatology Division, Department of Medicine, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - Todd A Wyatt
- 1 Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska.,2 Veterans Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,4 Department of Environmental, Agricultural, and Occupational Health, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - Elizabeth Staab
- 1 Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - Art J Heires
- 1 Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska.,2 Veterans Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska
| | - Lynell W Klassen
- 2 Veterans Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,3 Rheumatology Division, Department of Medicine, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - Michael J Duryee
- 2 Veterans Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,3 Rheumatology Division, Department of Medicine, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - Ted R Mikuls
- 2 Veterans Affairs Nebraska-Western Iowa Health Care System , Omaha, Nebraska.,3 Rheumatology Division, Department of Medicine, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - Anand Dusad
- 3 Rheumatology Division, Department of Medicine, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - William W West
- 5 Department of Pathology and Microbiology, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - Dong Wang
- 6 Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
| | - Jill A Poole
- 1 Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center , The Nebraska Medical Center, Omaha, Nebraska
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3
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Staab E, Thiele GM, Clarey D, Wyatt TA, Romberger DJ, Wells AD, Dusad A, Wang D, Klassen LW, Mikuls TR, Duryee MJ, Poole JA. Toll-Like Receptor 4 Signaling Pathway Mediates Inhalant Organic Dust-Induced Bone Loss. PLoS One 2016; 11:e0158735. [PMID: 27479208 PMCID: PMC4968800 DOI: 10.1371/journal.pone.0158735] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/21/2016] [Indexed: 01/06/2023] Open
Abstract
Agriculture workers have increased rates of airway and skeletal disease. Inhalant exposure to agricultural organic dust extract (ODE) induces bone deterioration in mice; yet, mechanisms underlying lung-bone crosstalk remain unclear. Because Toll-like receptor 2 (TLR2) and TLR4 are important in mediating the airway consequences of ODE, this study investigated their role in regulating bone responses. First, swine facility ODE stimulated wild-type (WT) bone marrow macrophages to form osteoclasts, and this finding was inhibited in TLR4 knock-out (KO), but not TLR2 KO cells. Next, using an established intranasal inhalation exposure model, WT, TLR2 KO and TLR4 KO mice were treated daily with ODE or saline for 3 weeks. ODE-induced airway neutrophil influx and cytokine/chemokine release were similarly reduced in TLR2 and TLR4 KO animals as compared to WT mice. Utilizing micro-computed tomography (CT), analysis of tibia showed loss of bone mineral density, volume and deterioration of bone micro-architecture and mechanical strength induced by ODE in WT mice were significantly reduced in TLR4 but not TLR2 KO animals. Bone marrow osteoclast precursor cell populations were analyzed by flow cytometry from exposed animals. In WT animals, exposure to inhalant ODE increased osteoclast precursor cell populations as compared to saline, an effect that was reduced in TLR4 but not TLR2 KO mice. These results show that TLR2 and TLR4 pathways mediate ODE-induced airway inflammation, but bone deterioration consequences following inhalant ODE treatment is strongly dependent upon TLR4. Thus, the TLR4 signaling pathway appears critical in regulating the lung-bone inflammatory axis to microbial component-enriched organic dust exposures.
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Affiliation(s)
- Elizabeth Staab
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Geoffrey M. Thiele
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America
- Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Dillon Clarey
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Todd A. Wyatt
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America
- Department of Environmental, Agricultural, and Occupational Health, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Debra J. Romberger
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America
| | - Adam D. Wells
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Anand Dusad
- Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Dong Wang
- Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Lynell W. Klassen
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America
- Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Ted R. Mikuls
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America
- Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Michael J. Duryee
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE, United States of America
- Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Jill A. Poole
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
- * E-mail:
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4
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Dusad A, Thiele GM, Klassen LW, Wang D, Duryee MJ, Mikuls TR, Staab EB, Wyatt TA, West WW, Reynolds SJ, Romberger DJ, Poole JA. Vitamin D supplementation protects against bone loss following inhalant organic dust and lipopolysaccharide exposures in mice. Immunol Res 2016; 62:46-59. [PMID: 25759026 DOI: 10.1007/s12026-015-8634-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Systemic bone loss is associated with airway inflammatory diseases; yet, strategies to halt disease progression from inhalant exposures are not clear. Vitamin D might be a potentially protective approach against noxious respirable environmental exposures. We sought to determine whether vitamin D supplementation represents a viable lung- and bone-protective strategy following repetitive inhalant treatments with organic dust extract (ODE) or lipopolysaccharide (LPS) in mice. C57BL/5 mice were maintained on diets with low (1 IU/D/g) or high (10 IU/D/g) vitamin D for 5 weeks and treated with ODE from swine confinement facilities, LPS, or saline daily for 3 weeks per established intranasal inhalation protocol. Lungs, hind limbs, and sera were harvested for experimental outcomes. Serum 25-hydroxyvitamin D levels were tenfold different between low and high vitamin D treatment groups with no differences between inhalant agents and saline treatments. Serum calcium levels were not affected. There was no difference in the magnitude of ODE- or LPS-induced inflammatory cell influx or lung histopathology between high and low vitamin D treatment groups. However, high vitamin D treatment reversed the loss of bone mineral density, bone volume, and bone micro-architecture deterioration induced by ODE or LPS as determined by micro-CT analysis. Bone-resorbing osteoclasts were also reduced by high vitamin D treatment. In the low vitamin D treatment groups, ODE induced the greatest degree of airway inflammatory consequences, and LPS induced the greatest degree of bone loss. Collectively, high-concentration vitamin D was protective against systemic bone loss, but not airway inflammation, resulting from ODE- or LPS-induced airway injury.
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Affiliation(s)
- Anand Dusad
- Rheumatology Division, Department of Internal Medicine, University of Nebraska Medical Center, 986350 Nebraska Medical Center, Omaha, NE, 68198-6350, USA
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Poole JA, Klein E, Dusad A, Wyatt T, Romberger D, Duryee M, Klassen L, Mikuls T, Wang D, Thiele G. Toll-like Receptor 4 Signaling Pathway Mediates Inhalant Organic Dust-Induced Bone Loss. J Allergy Clin Immunol 2016. [DOI: 10.1016/j.jaci.2015.12.708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Garvin KL, White TC, Dusad A, Hartman CW, Martell J. Low wear rates seen in THAs with highly crosslinked polyethylene at 9 to 14 years in patients younger than age 50 years. Clin Orthop Relat Res 2015; 473:3829-35. [PMID: 26122983 PMCID: PMC4626518 DOI: 10.1007/s11999-015-4422-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Patients 50 years or younger are at high risk for wear-related complications of their total hip arthroplasty (THA) because of their generally higher levels of activity. Highly crosslinked polyethylene (HXLPE) is believed to be more durable for this population than conventional polyethylene because of its improved wear; however, limited information is available on the wear of HXLPE in this population, particularly the wear of HXLPE when it articulates with alternative bearings like Oxinium (Smith & Nephew, Memphis, TN, USA). QUESTIONS/PURPOSES The purpose of this study was to evaluate two questions relative to this population of patients undergoing THA. First, what was the linear and volumetric wear rate of HXLPE in patients 50 years or younger at a minimum followup of 9 years and was osteolysis observed in any of these hips? Given the potential for damage to the Oxinium femoral head surface, was the wear of HXLPE in the patients with this material similar to the other bearings or was there accelerated or runaway wear that was visible in any of the patients? METHODS From November 1999 to April 2005, 105 THAs were performed in 95 patients 50 years of age or younger (mean, 42 years; range, 20-50 years). The mean body mass index was 30 kg/m(2) (range, 17-51 kg/m(2)).The mean followup was 12 years (range, 9-14 years). Two patients died, five patients (one bilateral) were lost to followup, and one hip was revised elsewhere for pain. The patients' information was not included in the study, which left 87 patients with 96 hips for analysis. Highly crosslinked polyethylene was the acetabular bearing for all of the hips. We analyzed the linear and volumetric wear of all of the hips using the Martell method. Eighty hips had the same diameter head (28 mm) allowing us to more accurately compare the different bearing materials. The type of femoral head used was related to our sequential use of materials beginning with cobalt chrome (14), ceramic (23) followed by Oxinium (43) in the hips with 28-mm heads. Although cobalt-chrome was used early in this study, our previous experience with ceramic on polyethylene encouraged us to use it as an alternative bearing. The Oxinium was used consecutively for the remaining hips. RESULTS The mean wear of the HXLPE after 1 year of bedding-in (true linear wear)was 0.022 mm/year (95% confidence interval [CI], 0.015-0.030 mm/year). The mean volumetric wear of HXLPE after 1 year of bedding-in (true volumetric wear) was 9 mm(3)/year (95% CI, 4-14 mm(3)/year). None of the hip radiographs had evidence of loosening or osteolysis. Wear was not associated with femoral head material (p = 0.58 for linear wear/year versus head material and p = 0.52 for volumetric wear/year versus head material). CONCLUSIONS In our study of patients 50 years of age or younger undergoing THA, the linear and volumetric wear rates of HXLPE were very low regardless of the bearing surface material. The laboratory concerns of Oxinium surface damage are serious but at this time we have not seen high wear of the HXLPE or osteolysis in this population. LEVEL OF EVIDENCE Level III, therapeutic study.
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Affiliation(s)
- Kevin L. Garvin
- />Department of Orthopaedic Surgery and Rehabilitation, University of Nebraska Medical Center, 981080 Nebraska Medical Center, Omaha, NE 68198-1080 USA
| | - Tyler C. White
- />Department of Orthopaedic Surgery and Rehabilitation, University of Nebraska Medical Center, 981080 Nebraska Medical Center, Omaha, NE 68198-1080 USA
| | - Anand Dusad
- />Department of Orthopaedic Surgery and Rehabilitation, University of Nebraska Medical Center, 981080 Nebraska Medical Center, Omaha, NE 68198-1080 USA
| | - Curtis W. Hartman
- />Department of Orthopaedic Surgery and Rehabilitation, University of Nebraska Medical Center, 981080 Nebraska Medical Center, Omaha, NE 68198-1080 USA
| | - John Martell
- />The Orthopaedic Research Institute, University of Chicago Medicine, Chicago, IL USA
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Dusad A, Pedro S, Mikuls TR, Hartman CW, Garvin KL, O'Dell JR, Michaud K. Impact of Total Knee Arthroplasty as Assessed Using Patient-Reported Pain and Health-Related Quality of Life Indices: Rheumatoid Arthritis Versus Osteoarthritis. Arthritis Rheumatol 2015. [DOI: 10.1002/art.39221] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Anand Dusad
- Veterans Affairs Nebraska−Western Iowa Health Care System and University of Nebraska Medical Center; Omaha
| | - Sofia Pedro
- National Data Bank for Rheumatic Diseases; Wichita Kansas
| | - Ted R. Mikuls
- Veterans Affairs Nebraska−Western Iowa Health Care System and University of Nebraska Medical Center; Omaha
| | | | | | - James R. O'Dell
- Veterans Affairs Nebraska−Western Iowa Health Care System and University of Nebraska Medical Center; Omaha
| | - Kaleb Michaud
- National Data Bank for Rheumatic Diseases, Wichita, Kansas, and University of Nebraska Medical Center; Omaha
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Quan L, Zhang Y, Dusad A, Ren K, Purdue PE, Goldring SR, Wang D. The Evaluation of the Therapeutic Efficacy and Side Effects of a Macromolecular Dexamethasone Prodrug in the Collagen-Induced Arthritis Mouse Model. Pharm Res 2015; 33:186-93. [PMID: 26286188 DOI: 10.1007/s11095-015-1776-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 08/10/2015] [Indexed: 12/19/2022]
Abstract
PURPOSE To investigate the efficacy and safety of N-(2-hydroxypropyl) methacrylamide (HPMA) copolymer-dexamethasone conjugate (P-Dex) in the collagen-induced arthritis (CIA) mouse model. METHODS HPMA copolymer labeled with a near infrared fluorescence (NIRF) dye was administered to mice with CIA to validate its passive targeting to inflamed joints and utility as a drug carrier system. The CIA mice were treated with P-Dex, dexamethasone (Dex) or saline and the therapeutic efficacy and skeletal toxicity evaluated using clinical scoring and micro-computed tomography (μ-CT). RESULTS The NIRF signal of the HPMA copolymer localized to arthritic joints consistent with its passive targeting to sites of inflammation. While the CIA mice responded more rapidly to P-Dex compared to Dex, the final clinical score and endpoint μ-CT analyses of localized bone erosions indicated that both single dose P-Dex and dose equivalent daily Dex led to comparable clinical efficacy after 30 days. μ-CT analysis of the proximal tibial metaphyses showed that P-Dex treatment was associated with significantly higher BMD and BV/TV compared to Dex and the saline control, consistent with reduced glucocorticoid (GC) skeletal toxicity. CONCLUSION These results validate the therapeutic efficacy of P-Dex in the CIA mouse model. P-Dex treatment averted the adverse effects of GC's on systemic bone loss, supporting its utility in clinical development for the management of rheumatoid arthritis.
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Affiliation(s)
- Lingdong Quan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, 986025 Nebraska Medical Center, COP 3026, Omaha, Nebraska, 68198-6025, USA
| | - Yijia Zhang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, 986025 Nebraska Medical Center, COP 3026, Omaha, Nebraska, 68198-6025, USA
| | - Anand Dusad
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, 986025 Nebraska Medical Center, COP 3026, Omaha, Nebraska, 68198-6025, USA
| | - Ke Ren
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, 986025 Nebraska Medical Center, COP 3026, Omaha, Nebraska, 68198-6025, USA
| | - P Edward Purdue
- Hospital for Special Surgery, New York, New York, 10021, USA
| | | | - Dong Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, 986025 Nebraska Medical Center, COP 3026, Omaha, Nebraska, 68198-6025, USA.
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9
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Thiele GM, Duryee MJ, Anderson DR, Klassen LW, Mohring SM, Young KA, Benissan-Messan D, Sayles H, Dusad A, Hunter CD, Sokolove J, Robinson WH, O'Dell JR, Nicholas AP, Tuma DJ, Mikuls TR. Malondialdehyde-acetaldehyde adducts and anti-malondialdehyde-acetaldehyde antibodies in rheumatoid arthritis. Arthritis Rheumatol 2015; 67:645-55. [PMID: 25417811 DOI: 10.1002/art.38969] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 11/18/2014] [Indexed: 01/24/2023]
Abstract
OBJECTIVE Malondialdehyde-acetaldehyde (MAA) adducts are a product of oxidative stress associated with tolerance loss in several disease states. This study was undertaken to investigate the presence of MAA adducts and circulating anti-MAA antibodies in patients with rheumatoid arthritis (RA). METHODS Synovial tissue from patients with RA and patients with osteoarthritis (OA) were examined for the presence of MAA-modified and citrullinated proteins. Anti-MAA antibody isotypes were measured in RA patients (n = 1,720) and healthy controls (n = 80) by enzyme-linked immunosorbent assay. Antigen-specific anti-citrullinated protein antibodies (ACPAs) were measured in RA patients using a multiplex antigen array. Anti-MAA isotype concentrations were compared in a subset of RA patients (n = 80) and matched healthy controls (n = 80). Associations of anti-MAA antibody isotypes with disease characteristics, including ACPA positivity, were examined in all RA patients. RESULTS Expression of MAA adducts was increased in RA synovial tissue compared to OA synovial tissue, and colocalization with citrullinated proteins was found. Increased levels of anti-MAA antibody isotypes were observed in RA patients compared to controls (P < 0.001). Among RA patients, anti-MAA antibody isotypes were associated with seropositivity for ACPAs and rheumatoid factor (P < 0.001) in addition to select measures of disease activity. Higher anti-MAA antibody concentrations were associated with a greater number of positive antigen-specific ACPA analytes (expressed at high titer) (P < 0.001) and a higher ACPA score (P < 0.001), independent of other covariates. CONCLUSION MAA adduct formation is increased in RA and appears to result in robust antibody responses that are strongly associated with ACPAs. These results support speculation that MAA formation may be a cofactor that drives tolerance loss, resulting in the autoimmune responses characteristic of RA.
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Affiliation(s)
- Geoffrey M Thiele
- VA Nebraska-Western Iowa Health Care System, Omaha, Nebraska, and University of Nebraska Medical Center, Omaha
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10
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Poole JA, Romberger DJ, Wyatt TA, Staab E, VanDeGraaff J, Thiele GM, Dusad A, Klassen LW, Duryee MJ, Mikuls TR, West WW, Wang D, Bailey KL. Age Impacts Pulmonary Inflammation and Systemic Bone Response to Inhaled Organic Dust Exposure. J Toxicol Environ Health A 2015; 78:1201-16. [PMID: 26436836 PMCID: PMC4706168 DOI: 10.1080/15287394.2015.1075165] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Agricultural workers have high rates of airway and skeletal health disease. Studies recently demonstrated that inhaled agricultural organic dust extract (ODE)-induced airway injury is associated with bone deterioration in an animal model. However, the effect of age in governing these responses to organic dusts is unclear, but might be important in future approaches. Young (7-9 wk) and older (12-14,o) male C57BL/6 mice received intranasal (i.n.) inhalation exposure to ODE from swine confinement facilities once or daily for 3 wk. Acute ODE-induced neutrophil influx and cytokine and chemokine (tumor necrosis factor [TNF]-α, interleukin [IL]-6, keratinocyte chemoattractant [CXCL1], macrophage inflammatory protein-2 [CXCL2]) airway production were reduced in older compared to young mice. Repetitive ODE treatment, however, increased lymphocyte recruitment and alveolar compartment histopathologic inflammatory changes in older mice. Whole lung cell infiltrate analysis revealed that young, but not older, mice repetitively treated with ODE demonstrated an elevated CD4:CD8 lymphocyte response. Acute inhalant ODE exposure resulted in a 4-fold and 1.5-fold rise in blood neutrophils in young and older mice, respectively. Serum IL-6 and CXCL1 levels were elevated in young and older mice i.n. exposed once to ODE, with increased CXCL1 levels in younger compared to older mice. Although older mice displayed reduced bone measurements compared to younger mice, younger rodents demonstrated ODE-induced decrease in bone mineral density, bone volume, and bone microarchitecture quality as determined by computed tomography (CT) analysis. Collectively, age impacts the airway injury and systemic inflammatory and bone loss response to inhalant ODE, suggesting an altered and enhanced immunologic response in younger as compared to older counterparts.
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Affiliation(s)
- Jill A. Poole
- Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - Debra J. Romberger
- Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105
| | - Todd A. Wyatt
- Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105
| | - Elizabeth Staab
- Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - Joel VanDeGraaff
- Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - Geoffrey M. Thiele
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105
- Rheumatology Division; Department of Medicine, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - Anand Dusad
- Rheumatology Division; Department of Medicine, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - Lynell W. Klassen
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105
- Rheumatology Division; Department of Medicine, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - Michael J. Duryee
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105
- Rheumatology Division; Department of Medicine, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - Ted R. Mikuls
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105
- Rheumatology Division; Department of Medicine, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - William W. West
- Department of Pathology in the College of Medicine, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - Dong Wang
- Pharmaceutical Sciences in the College of Pharmacy, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
| | - Kristina L. Bailey
- Pulmonary, Critical Care, Sleep & Allergy Division, University of Nebraska Medical Center, 985300 The Nebraska Medical Center, Omaha, NE 68198-5300
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105
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11
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Jia Z, Zhang Y, Chen YH, Dusad A, Yuan H, Ren K, Li F, Fehringer EV, Purdue PE, Goldring SR, Daluiski A, Wang D. Simvastatin prodrug micelles target fracture and improve healing. J Control Release 2014; 200:23-34. [PMID: 25542644 DOI: 10.1016/j.jconrel.2014.12.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 12/12/2014] [Accepted: 12/22/2014] [Indexed: 01/20/2023]
Abstract
Simvastatin (SIM), a widely used anti-lipidemic drug, has been identified as a bone anabolic agent. Its poor water solubility and the lack of distribution to the skeleton, however, have limited its application in the treatment of bone metabolic diseases. In this study, an amphiphilic macromolecular prodrug of SIM was designed and synthesized to overcome these limitations. The polyethylene glycol (PEG)-based prodrug can spontaneously self-assemble to form micelles. The use of SIM trimer as the prodrug's hydrophobic segment allows easy encapsulation of additional free SIM. The in vitro studies showed that SIM/SIM-mPEG micelles were internalized by MC3T3 cells via lysosomal trafficking and consistently induced expression of both BMP2 and DKK1 mRNA, suggesting that the prodrug micelle retains the biological functions of SIM. After systemic administration, optical imaging suggests that the micelles would passively target to bone fracture sites associated with hematoma and inflammation. Furthermore, flow cytometry study revealed that SIM/SIM-mPEG micelles had preferred cellular uptake by inflammatory and resident cells within the fracture callus tissue. The treatment study using a mouse osteotomy model validated the micelles' therapeutic efficacy in promoting bone fracture healing as demonstrated by micro-CT and histological analyses. Collectively, these data suggest that the macromolecular prodrug-based micelle formulation of SIM may have great potential for clinical management of impaired fracture healing.
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Affiliation(s)
- Zhenshan Jia
- The Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Yijia Zhang
- The Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Yen Hsun Chen
- Hospital for Special Surgery, New York, NY 10021, USA
| | - Anand Dusad
- The Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Hongjiang Yuan
- The Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ke Ren
- The Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Fei Li
- The Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Edward V Fehringer
- the Department of Orthopaedic Surgery and Rehabilitation, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | | | | | | | - Dong Wang
- The Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA
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12
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Dusad A, Duryee MJ, Shaw AT, Klassen LW, Anderson DR, Wang D, Ren K, Gravallese EM, O'Dell JR, Mikuls TR, Thiele GM. Induction of bone loss in DBA/1J mice immunized with citrullinated autologous mouse type II collagen in the absence of adjuvant. Immunol Res 2014; 58:51-60. [PMID: 24371010 DOI: 10.1007/s12026-013-8479-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Joint damage in rheumatoid arthritis (RA) is characterized by cartilage and bone loss resulting in pain, deformity, and loss of joint function. Anti-citrullinated protein antibody (ACPA) has been implicated in RA pathogenesis and predicts radiographical joint damage and clinical severity. Therefore, the purpose of this study was to assess bone loss by micro-CT, histological joint damage, and ACPA levels using a mouse model of RA. Arthritis was induced by immunizing DBA/1 mice with autologous citrullinated type II mouse collagen (CIT-CII) weekly for 4 weeks. Mice immunized with autologous CII served as controls. At week 5, mice were killed, ACPA levels determined, and micro-CT performed to quantitatively analyze bone damage. Micro-CT analysis revealed significant loss of bone density, volume, and surface (p < 0.05) in bone peripheral to the inflamed joints of CIT-CII animals compared to CII controls. Histological staining demonstrated cartilage, proteoglycan, joint collagen, and bone collagen loss in the CIT-CII group compared to CII. Serum ACPA levels were increased (p = 0.03) in the CIT-CII group compared to CII, and these levels were inversely correlated with bone quantity and quality. In this study, we demonstrate that immunization with autologous CIT-CII initiates significant systemic bone and articular cartilage loss in the absence of adjuvant. Significant inverse correlations of circulating ACPA and bone quality/quantity were present. ACPA levels predict the adverse bone morphological changes in this model of early RA.
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Affiliation(s)
- Anand Dusad
- Experimental Immunology Laboratory, Omaha Veterans Administration Medical Center, Omaha, NE, 68105, USA,
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13
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Dusad A, Khadge S, Thiele GM, Duryee MJ, Britton HC, Klassen LW, Dafferner AJ, Farrell T, McGuire TR, Hunter CD, Easterling KC, O'Kane KJ, Sharp JG, Talmadge JE. Abstract 1167: Osteolysis, splenic and hepatic extramedullary hematopoiesis, MDSCs, tumor growth, and metastases by orthotopic mammary tumors are increased by alcohol consumption and fatty diets. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-1167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Fatty diets can induce low-grade inflammation that we report is increased by chronic alcohol consumption (CAC). CAC as 16.6% of total calories when administered in combination with the Lieber-DeCarli high-fat diet increases inflammation included hepatic and splenic extramedullary hematopoiesis (EMH) as assessed by flow cytometry, immunohistochemistry and a colony forming unit-granulocyte macrophage (CFU-GM) assay. Further, an increased number of hepatic myeloid derived suppressor cells (MDSCs) CD11b+Gr1+ cells that were predominantly Ly6cbr are observed. The increase in MDSCs is associated with an increased number of hepatic non-parenchymal cells including adipocytes (Oil Red O). Consistent with the increased number of hepatic MDSCs and EMH is a decrease in bone marrow cellularity and progenitor cells measured by flow cytometry (Lin-CD11b-Gr1-Sca-1+) and CFU-GM/femur. Unexpectedly, we observed demineralization and osteolytic lesions by micro computed tomography (micro CT) in all bones examined including femur, tibia, fibula and vertebral column that was associated with osteoclast activity (Trap+). Osteolysis was most notable in the fibula and vertebral spurs associated with osteoclast channels, and the demineralization appeared to be associated with areas of active myelopoiesis. The low grade, chronic inflammation associated with the Lieber-DeCarli fatty diet and CAC accelerated the induction of orthotopic 4T1 mammary tumors, resulting in extensive bone osteolysis, demineralization and increased metastases at aberrant sites including splenic, cardiac, hepatic, and extensive lymph node foci in addition to peritoneal and pleural effusions. The latter were haemorrhagic with a predominant nucleated cell infiltrate composed of bands, segs and myelocytes, supporting EMH. These results support the suggestion that a high-fat diet and CAC together increase tumor induction, metastasis and pathology in association with MDSC mobilization, expansion and EMH resulting in increased numbers of osteoclasts, associated bone demineralization and suppression of T-cell frequency and function. These results support the development of combination therapy strategies incorporating multiple molecular therapeutics that inhibit OCs, MDSCs and their associated mediators.
Citation Format: Anand Dusad, Saraswoti Khadge, Geoffrey M. Thiele, Michael J. Duryee, Holly C. Britton, Lynell W. Klassen, Alicia J. Dafferner, Tracy Farrell, Timothy R. McGuire, Carlos D. Hunter, Karen C. Easterling, Karen J. O'Kane, John Graham Sharp, James E. Talmadge. Osteolysis, splenic and hepatic extramedullary hematopoiesis, MDSCs, tumor growth, and metastases by orthotopic mammary tumors are increased by alcohol consumption and fatty diets. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 1167. doi:10.1158/1538-7445.AM2014-1167
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Affiliation(s)
- Anand Dusad
- 1University of Nebraska Medical Center, Omaha, NE
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Duryee MJ, Willis MS, Schaffert CS, Reidelberger RD, Dusad A, Anderson DR, Klassen LW, Thiele GM. Precision-cut liver slices from diet-induced obese rats exposed to ethanol are susceptible to oxidative stress and increased fatty acid synthesis. Am J Physiol Gastrointest Liver Physiol 2014; 306:G208-17. [PMID: 24284960 PMCID: PMC3920111 DOI: 10.1152/ajpgi.00124.2013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Oxidative stress from fat accumulation in the liver has many deleterious effects. Many believe that there is a second hit that causes relatively benign fat accumulation to transform into liver failure. Therefore, we evaluated the effects of ethanol on ex vivo precision-cut liver slice cultures (PCLS) from rats fed a high-fat diet resulting in fatty liver. Age-matched male Sprague-Dawley rats were fed either high-fat (obese) (45% calories from fat, 4.73 kcal/g) or control diet for 13 mo. PCLS were prepared, incubated with 25 mM ethanol for 24, 48, and 72 h, harvested, and evaluated for ethanol metabolism, triglyceride production, oxidative stress, and cytokine expression. Ethanol metabolism and acetaldehyde production decreased in PCLS from obese rats compared with age-matched controls (AMC). Increased triglyceride and smooth muscle actin production was observed in PCLS from obese rats compared with AMC, which further increased following ethanol incubation. Lipid peroxidation, measured by thiobarbituric acid reactive substances assay, increased in response to ethanol, whereas GSH and heme oxygenase I levels were decreased. TNF-α and IL-6 levels were increased in the PCLS from obese rats and increased further with ethanol incubation. Diet-induced fatty liver increases the susceptibility of the liver to toxins such as ethanol, possibly by the increased oxidative stress and cytokine production. These findings support the concept that the development of fatty liver sensitizes the liver to the effects of ethanol and leads to the start of liver failure, necrosis, and eventually cirrhosis.
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Affiliation(s)
- Michael J. Duryee
- 1Experimental Immunology Laboratory, Veterans Affairs Nebraska-Western Iowa Health Care System (VA NWIHCS), Omaha, Nebraska; ,2Experimental Immunology Laboratory, University of Nebraska Medical Center, Department of Internal Medicine, Division of Rheumatology, Omaha, Nebraska;
| | - Monte S. Willis
- 3Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina;
| | - Courtney S. Schaffert
- 1Experimental Immunology Laboratory, Veterans Affairs Nebraska-Western Iowa Health Care System (VA NWIHCS), Omaha, Nebraska; ,2Experimental Immunology Laboratory, University of Nebraska Medical Center, Department of Internal Medicine, Division of Rheumatology, Omaha, Nebraska;
| | | | - Anand Dusad
- 1Experimental Immunology Laboratory, Veterans Affairs Nebraska-Western Iowa Health Care System (VA NWIHCS), Omaha, Nebraska; ,2Experimental Immunology Laboratory, University of Nebraska Medical Center, Department of Internal Medicine, Division of Rheumatology, Omaha, Nebraska;
| | - Daniel R. Anderson
- 3Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina;
| | - Lynell W. Klassen
- 1Experimental Immunology Laboratory, Veterans Affairs Nebraska-Western Iowa Health Care System (VA NWIHCS), Omaha, Nebraska; ,2Experimental Immunology Laboratory, University of Nebraska Medical Center, Department of Internal Medicine, Division of Rheumatology, Omaha, Nebraska;
| | - Geoffrey M. Thiele
- 1Experimental Immunology Laboratory, Veterans Affairs Nebraska-Western Iowa Health Care System (VA NWIHCS), Omaha, Nebraska; ,2Experimental Immunology Laboratory, University of Nebraska Medical Center, Department of Internal Medicine, Division of Rheumatology, Omaha, Nebraska; ,5University of Nebraska Medical Center, Department of Pathology and Microbiology, Omaha, Nebraska; and
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Poole JA, Dusad A, Wyatt T, Gleason A, Duryee M, Klein E, Bauer C, Klassen L, Mikuls T, West W, Romberger D, Thiele G. Vitamin D Treatment Is Protective Of Inhalant Organic Dust-Induced Bone Loss. J Allergy Clin Immunol 2014. [DOI: 10.1016/j.jaci.2013.12.591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Quan L, Zhang Y, Crielaard BJ, Dusad A, Lele SM, Rijcken CJF, Metselaar JM, Kostková H, Etrych T, Ulbrich K, Kiessling F, Mikuls TR, Hennink WE, Storm G, Lammers T, Wang D. Nanomedicines for inflammatory arthritis: head-to-head comparison of glucocorticoid-containing polymers, micelles, and liposomes. ACS Nano 2014; 8:458-466. [PMID: 24341611 PMCID: PMC3947749 DOI: 10.1021/nn4048205] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
As an emerging research direction, nanomedicine has been increasingly utilized to treat inflammatory diseases. In this head-to-head comparison study, four established nanomedicine formulations of dexamethasone, including liposomes (L-Dex), core-cross-linked micelles (M-Dex), slow releasing polymeric prodrugs (P-Dex-slow), and fast releasing polymeric prodrugs (P-Dex-fast), were evaluated in an adjuvant-induced arthritis rat model with an equivalent dose treatment design. It was found that after a single i.v. injection, the formulations with the slower drug release kinetics (i.e., M-Dex and P-Dex-slow) maintained longer duration of therapeutic activity than those with relatively faster drug release kinetics, resulting in better joint protection. This finding will be instructional in the future development and optimization of nanomedicines for the clinical management of rheumatoid arthritis. The outcome of this study also illustrates the value of such head-to-head comparison studies in translational nanomedicine research.
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Affiliation(s)
- Lingdong Quan
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, (USA)
| | - Yijia Zhang
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, (USA)
| | - Bart J. Crielaard
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, (The Netherlands)
| | - Anand Dusad
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, (USA)
| | - Subodh M. Lele
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska 68198, (USA)
| | | | - Josbert M Metselaar
- Department of Targeted Therapeutics, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, PO Box 217, 7500 AE, Enschede (The Netherlands)
| | - Hana Kostková
- Institute of Macromolecular Chemistry AS CR, v.v.i., Heyrovského nám. 2, 162 06 Prague 6, (Czech Republic)
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry AS CR, v.v.i., Heyrovského nám. 2, 162 06 Prague 6, (Czech Republic)
| | - Karel Ulbrich
- Institute of Macromolecular Chemistry AS CR, v.v.i., Heyrovského nám. 2, 162 06 Prague 6, (Czech Republic)
| | - Fabian Kiessling
- Department of Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH - Aachen University, Pauwelsstrasse 30, 52074 Aachen (Germany)
| | - Ted R. Mikuls
- Omaha VA Medical Center, 4101 Woolworth Avenue, Omaha, (USA)
- Department Internal Medicine, Division of Rheumatology, University of Nebraska Medical Center, Omaha, NE 68198, (USA)
| | - Wim E. Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, (The Netherlands)
| | - Gert Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, (The Netherlands)
- Department of Targeted Therapeutics, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, PO Box 217, 7500 AE, Enschede (The Netherlands)
| | - Twan Lammers
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, (The Netherlands)
- Department of Targeted Therapeutics, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, PO Box 217, 7500 AE, Enschede (The Netherlands)
- Department of Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH - Aachen University, Pauwelsstrasse 30, 52074 Aachen (Germany)
| | - Dong Wang
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, (USA)
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17
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Dusad A, Thiele GM, Klassen LW, Gleason AM, Bauer C, Mikuls TR, Duryee MJ, West WW, Romberger DJ, Poole JA. Organic dust, lipopolysaccharide, and peptidoglycan inhalant exposures result in bone loss/disease. Am J Respir Cell Mol Biol 2013; 49:829-36. [PMID: 23782057 DOI: 10.1165/rcmb.2013-0178oc] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Skeletal health consequences associated with chronic inflammatory respiratory disease, and particularly chronic obstructive pulmonary disease (COPD), contribute to overall disease morbidity. Agricultural environmental exposures induce significant airway diseases, including COPD. However, animal models to understand inhalant exposure-induced lung injury and bone disease have not been described. Using micro-computed tomography (micro-CT) imaging technology and histology, bone quantity and quality measurements were investigated in mice after repetitive intranasal inhalation exposures to complex organic dust extracts (ODEs) from swine confinement facilities. Comparison experiments with LPS and peptidoglycan (PGN) alone were also performed. After 3 weeks of repetitive ODE inhalation exposure, significant loss of bone mineral density and trabecular bone volume fraction was evident, with altered morphological microarchitecture changes in the trabecular bone, compared with saline-treated control animals. Torsional resistance was also significantly reduced. Compared with saline treatment, ODE-treated mice demonstrated decreased collagen and proteoglycan content in their articular cartilage, according to histopathology. Significant bone deterioration was also evident after repetitive intranasal inhalant treatment with LPS and PGN. These findings were not secondary to animal distress, and not entirely dependent on the degree of induced lung parenchymal inflammation. Repetitive LPS treatment demonstrated the most pronounced changes in bone parameters, and PGN treatment resulted in the greatest lung parenchymal inflammatory changes. Collectively, repetitive inhalation exposures to noninfectious inflammatory agents such as complex organic dust, LPS, and PGN resulted in bone loss. This animal model may contribute to efforts toward understanding the mechanisms and evaluating the therapeutics associated with adverse skeletal health consequences after subchronic airway injury.
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18
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Ren K, Dusad A, Yuan F, Yuan H, Purdue PE, Fehringer EV, Garvin KL, Goldring SR, Wang D. Macromolecular prodrug of dexamethasone prevents particle-induced peri-implant osteolysis with reduced systemic side effects. J Control Release 2013; 175:1-9. [PMID: 24326124 DOI: 10.1016/j.jconrel.2013.11.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 11/24/2013] [Accepted: 11/29/2013] [Indexed: 11/25/2022]
Abstract
Aseptic implant loosening related to implant wear particle-induced inflammation is the most common cause of failure after joint replacement. Modulation of the inflammatory reaction to the wear products represents a rational approach for preventing aseptic implant failure. Long-term treatment using anti-inflammatory agents, however, can be associated with significant systemic side effects due to the drugs' lack of tissue specificity. To address this issue, N-(2-hydroxypropyl) methacrylamide (HPMA) copolymer-dexamethasone conjugate (P-Dex) was developed and evaluated for prevention of wear particle-induced osteolysis and the loss of fixation in a murine prosthesis failure model. Daily administration of free dexamethasone (Dex) was able to prevent wear particle-induced osteolysis, as assessed by micro-CT and histological analysis. Remarkably, monthly P-Dex administration (dose equivalent to free Dex treatment) was equally effective as free dexamethasone, but was not associated with systemic bone loss (a major adverse side effect of glucocorticoids). The reduced systemic toxicity of P-Dex is related to preferential targeting of the sites of wear particle-induced inflammation and its subcellular sequestration and retention by local inflammatory cell populations, resulting in sustained therapeutic action. These results demonstrate the feasibility of utilizing a macromolecular prodrug with reduced systemic toxicity to prevent wear particle-induced osteolysis.
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Affiliation(s)
- Ke Ren
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha 68198, USA
| | - Anand Dusad
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha 68198, USA
| | - Fang Yuan
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha 68198, USA
| | - Hongjiang Yuan
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha 68198, USA
| | | | - Edward V Fehringer
- Department of Orthopaedics Surgery and Rehabilitation, University of Nebraska Medical Center, Omaha 68198, USA
| | - Kevin L Garvin
- Department of Orthopaedics Surgery and Rehabilitation, University of Nebraska Medical Center, Omaha 68198, USA
| | | | - Dong Wang
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha 68198, USA.
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Duryee MJ, Dusad A, Shurmur SW, Johnston MD, Garvin RP, Hunter CD, Anderson DR, Thiele GM. Abstract 382: Anti-MAA Antibodies in Sprague Dawley Rats are Increased in Response to a High Fat Western Diet. Arterioscler Thromb Vasc Biol 2013. [DOI: 10.1161/atvb.33.suppl_1.a382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction
Malondialdehyde/Acetaldehyde (MAA) modified proteins have been suggested to play a role in the development/progression of atherosclerosis. Circulating antibodies directed against these proteins have recently been shown to be associated with the severity of the disease. More specifically, the isotype of the antibody to MAA correlated with either an acute MI (IgG) or stable plaque formation (IgA) formation. MAA is thought to form as a result of the oxidation of fat(s) and thus the concentration and antibody response should reflect the amount of fat in the diet.
Objective
The purpose of this study was to evaluate the antibody responses to MAA modified proteins following immunization and high fat western diet feeding in rats.
Methods
Male Sprague Dawley rats were immunized with MAA-modified protein weekly for 5 weeks and then assayed for antibodies to these proteins. Animals were then separated into the following groups: chow sham, chow MAA immunized, high fat sham, and high fat MAA immunized. The high fat animals were fed a Western diet with 2-thiouracil for 12 weeks, bled every 3 weeks, and serum assayed for the presence of circulating MAA antibodies.
Results
Prior to feeding with high fat diet, rats immunized with MAA-modified protein had a significant increase (P<0.001) in serum antibodies directed against these modified proteins compared to controls (N of 4 per group). Following feeding of high fat diet antibody concentrations increased 6 fold in the high fat MAA immunized group compared to the chow MAA immunized group (P<0.05). Antibodies in the high fat sham and chow sham had only minimal increases in antibodies to these proteins.
Conclusions
These data demonstrate that following immunization with MAA-modified proteins, circulating antibodies are produced that increase following consumption of a high fat Western diet. It suggests that MAA-modified proteins are produced at low levels following normal diet, producing antibodies which act as a normal clearance method for altered protein. When high fat consumption increases these antibody levels are increased in response to the oxidative stress.
Implications
Use of these antibodies as a biomarker in the future may help predict the onset or progression of atherosclerosis.
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Affiliation(s)
- Michael J Duryee
- Internal Medicine Rheumatolgy, Univ of Nebraska Med Cntr, Omaha, NE
| | - Anand Dusad
- Internal Medicine Rheumatolgy, Univ of Nebraska Med Cntr, Omaha, NE
| | - Scott W Shurmur
- Internal Medicine Cardiology, Univ of Nebraska Med Cntr, Omaha, NE
| | | | - Robert P Garvin
- Internal Medicine Cardiology, Univ of Nebraska Med Cntr, Omaha, NE
| | - Carlos D Hunter
- Internal Medicine Rheumatolgy, Univ of Nebraska Med Cntr, Omaha, NE
| | | | - Geoffrey M Thiele
- Rsch Services, Veterans Affairs Nebraska-Western Iowa Health Care System (VA NWIHCS), Omaha, NE
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Dusad A, Chakkalakal DA, Namavar F, Haider H, Hanisch B, Duryee MJ, Diaz A, Rensch A, Zhang Y, Hess R, Thiele GM, Fehringer EV. Titanium implant with nanostructured zirconia surface promotes maturation of peri-implant bone in osseointegration. Proc Inst Mech Eng H 2013; 227:510-22. [PMID: 23637261 DOI: 10.1177/0954411913479300] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The goal of the experiment outlined in this article is to improve upon noncemented methods of arthroplasty for clinical application in elderly patients. This was done by determining whether titanium implants with a novel nanostructured zirconia surface, which was created by ion beam-assisted deposition, would prevent impaired osseointegration of intramedullary implants in 1-year-old rats receiving a protein-deficient diet. Specifically, we asked whether the implant with the nanostructured zirconia surface would increase expression of markers of bone maturation within the remodeling of peri-implant woven bone. The control implants, which were made of commercially pure titanium, had a polished surface ex vivo but are known to acquire a microstructured titania surface in vivo. Ten 1-year-old rats received experimental implant (group A) and 10 had control (group B) implants. Ten 3-month-old rats received normal protein diet and the control implant (group C). Animals were euthanized 8 weeks after implantation, and transverse sections of femur-implant samples were used for histology, micro-computed tomography and immunohistochemical evaluations. In group B, the expression of α2β1 and α5β1 integrins, which are known to mediate osteoblast adhesion, glycosaminoglycans, heparan sulfate and chondroitin sulfate, was less than half of that in group C. Important to this study, the zirconia surface used in group A prevented these deficiencies. Therefore, these results indicate that nanostructured zirconia surface created on clinical implants by ion beam-assisted deposition may prevent impaired osseointegration in elderly patients by promoting quicker maturation of peri-implant woven bone.
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Affiliation(s)
- Anand Dusad
- Experimental Immunology Laboratory, Veterans Affairs Nebraska-Western Iowa Health Care System (VA NWIHCS), Research Services 151, Omaha, NE, USA
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Thiele GM, Duryee MJ, Dusad A, Hunter CD, Lacy JP, Anderson DR, Wang D, O'Dell JR, Mikuls TR, Klassen LW. Citrullinated mouse collagen administered to DBA/1J mice in the absence of adjuvant initiates arthritis. Int Immunopharmacol 2012; 13:424-31. [DOI: 10.1016/j.intimp.2012.05.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 05/01/2012] [Accepted: 05/07/2012] [Indexed: 11/16/2022]
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Tiwari SC, Nandeshwar S, Agrawal V, Dusad A, Gupta M. A study of expectations of cancer patients regarding treatment related side effects in Bhopal. Indian J Community Med 2007. [DOI: 10.4103/0970-0218.53410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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