Richard George Barbers, MD

Title(s)Professor of Clinical Medicine
SchoolKeck School of Medicine of Usc
AddressIRD 720 2020 Zonal Avenue
Off Campus
Los Angeles CA 90033
Phone+1 323 409 7184
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    Collapse Biography 
    Collapse Awards and Honors
    USC, Division of Pulmonary, Critical Care and Sleep Medicine2009Teacher of the Year
    American College of PhysiciansFellow
    American Academy of Allergy and ImmunologyFellow
    American College of Chest PhysiciansFellow
    American Thoracic Society2019Fellow

    Collapse Overview 
    Collapse Overview
    Dr. Barbers' clinical interests include asthma, lung transplantation, allergy and clinical immunology and cough. Dr. Barbers also performs bronchial thermoplasty in selected asthma patients as well as noninvasive endobrochial valves insertion in selected COPD patients. His research interests include role of innate and adaptive immune mechanisms in severe asthma and airway remodeling. He is also examining the role of autophagy (repair and regeneration of cells) in asthma.

    Dr. Barbers earned his medical degree from Georgetown University. He then went on to complete two fellowships, one in Clinical Immunology and Allergy, and the other in Pulmonary Disease both at UCLA. After teaching and practicing medicine at UCLA and the University of Massachusetts, Dr. Barbers joined the Keck School of Medicine faculty in 1990. Dr. Barbers’ teaching subjects include lung transplantation and asthma and he has published and lectured extensively in these areas.

    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. SIRPα engagement regulates ILC2 effector function and alleviates airway hyperreactivity via modulating energy metabolism. Cell Mol Immunol. 2024 Oct; 21(10):1158-1174. Sakano Y, Sakano K, Hurrell BP, Shafiei-Jahani P, Kazemi MH, Li X, Shen S, Barbers R, Akbari O. PMID: 39160226; PMCID: PMC11442993.
      View in: PubMed   Mentions: 1     Fields:    Translation:AnimalsCells
    2. Iron controls the development of airway hyperreactivity by regulating ILC2 metabolism and effector function. Sci Transl Med. 2024 May 08; 16(746):eadk4728. Hurrell BP, Sakano Y, Shen S, Helou DG, Li M, Shafiei-Jahani P, Kazemi MH, Sakano K, Li X, Quach C, Barbers R, Akbari O. PMID: 38718131.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansAnimalsCells
    3. Blocking CD226 regulates type 2 innate lymphoid cell effector function and alleviates airway hyperreactivity. J Allergy Clin Immunol. 2024 May; 153(5):1406-1422.e6. Sakano Y, Sakano K, Hurrell BP, Helou DG, Shafiei-Jahani P, Kazemi MH, Li X, Shen S, Hilser JR, Hartiala JA, Allayee H, Barbers R, Akbari O. PMID: 38244725.
      View in: PubMed   Mentions: 4     Fields:    Translation:HumansAnimalsCells
    4. Effect of bronchial thermoplasty on static and dynamic lung compliance and resistance in patients with severe persistent asthma. Respir Med. 2023 10; 217:107341. Baydur A, Barbers R, May D. PMID: 37429559.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. Safety and effectiveness of bronchial thermoplasty after 10 years in patients with persistent asthma (BT10+): a follow-up of three randomised controlled trials. Lancet Respir Med. 2021 05; 9(5):457-466. Chaudhuri R, Rubin A, Sumino K, Lapa E Silva JR, Niven R, Siddiqui S, Klooster K, McEvoy C, Shah PL, Simoff M, Khatri S, Barbers R, Mark Grubb G, McMullen EA, Olson JL, Laviolette M, BT10+ Study Group. PMID: 33524320.
      View in: PubMed   Mentions: 30     Fields:    Translation:Humans
    6. Lack of association of Aspergillus colonization with the development of bronchiolitis obliterans syndrome in lung transplant recipients: An international cohort study. J Heart Lung Transplant. 2019 09; 38(9):963-971. Law N, Hamandi B, Fegbeutel C, Silveira FP, Verschuuren EA, Ussetti P, Chin-Hong PV, Sole A, Holmes-Liew CL, Billaud EM, Grossi PA, Manuel O, Levine DJ, Barbers RG, Hadjiliadis D, Younus M, Aram J, Chaparro C, Singer LG, Husain S. PMID: 31300191.
      View in: PubMed   Mentions: 7     Fields:    Translation:HumansAnimals
    7. Comparison of Skin Cancer Incidence in Caucasian and Non-Caucasian Liver Vs. Lung Transplant Recipients: A Tale of Two Regimens. Clin Drug Investig. 2019 Feb; 39(2):197-203. Cohen BE, Krivitskiy I, Bui S, Forrester K, Kahn J, Barbers R, Ngo B. PMID: 30471069.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    8. Clinical risk factors for invasive aspergillosis in lung transplant recipients: Results of an international cohort study. J Heart Lung Transplant. 2018 10; 37(10):1226-1234. Aguilar CA, Hamandi B, Fegbeutel C, Silveira FP, Verschuuren EA, Ussetti P, Chin-Hong PV, Sole A, Holmes-Liew C, Billaud EM, Grossi PA, Manuel O, Levine DJ, Barbers RG, Hadjiliadis D, Singer LG, Husain S. PMID: 30139546.
      View in: PubMed   Mentions: 24     Fields:    Translation:HumansAnimals
    9. Further Studies of Unsuspected Emphysema in Nonsmoking Patients With Asthma With Persistent Expiratory Airflow Obstruction. Chest. 2018 03; 153(3):618-629. Gelb AF, Yamamoto A, Verbeken EK, Schein MJ, Moridzadeh R, Tran D, Fraser C, Barbers R, Elatre W, Koss MN, Glassy EF, Nadel JA. PMID: 29197547.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    10. Voriconazole and squamous cell carcinoma after lung transplantation: A multicenter study. Am J Transplant. 2018 01; 18(1):113-124. Hamandi B, Fegbeutel C, Silveira FP, Verschuuren EA, Younus M, Mo J, Yan J, Ussetti P, Chin-Hong PV, Solé A, Holmes-Liew CL, Billaud EM, Grossi PA, Manuel O, Levine DJ, Barbers RG, Hadjiliadis D, Aram J, Singer LG, Husain S. PMID: 28898527.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
    11. Lack of autophagy induces steroid-resistant airway inflammation. J Allergy Clin Immunol. 2016 05; 137(5):1382-1389.e9. Suzuki Y, Maazi H, Sankaranarayanan I, Lam J, Khoo B, Soroosh P, Barbers RG, James Ou JH, Jung JU, Akbari O. PMID: 26589586; PMCID: PMC4860134.
      View in: PubMed   Mentions: 43     Fields:    Translation:Animals
    12. Bronchial thermoplasty: Long-term safety and effectiveness in patients with severe persistent asthma. J Allergy Clin Immunol. 2013 Dec; 132(6):1295-302. Wechsler ME, Laviolette M, Rubin AS, Fiterman J, Lapa e Silva JR, Shah PL, Fiss E, Olivenstein R, Thomson NC, Niven RM, Pavord ID, Simoff M, Hales JB, McEvoy C, Slebos DJ, Holmes M, Phillips MJ, Erzurum SC, Hanania NA, Sumino K, Kraft M, Cox G, Sterman DH, Hogarth K, Kline JN, Mansur AH, Louie BE, Leeds WM, Barbers RG, Austin JH, Shargill NS, Quiring J, Armstrong B, Castro M, Asthma Intervention Research 2 Trial Study Group. PMID: 23998657; PMCID: PMC4114404.
      View in: PubMed   Mentions: 80     Fields:    Translation:Humans
    13. Risk-adjusted relationship between voriconazole utilization and non-melanoma skin cancer among lung and heart/lung transplant patients. Transpl Infect Dis. 2013 Aug; 15(4):329-43. McLaughlin JM, Equils O, Somerville KT, Aram JA, Schlamm HT, Welch VL, Mardekian J, Barbers RG. PMID: 23489832.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    14. Near fatal asthma: clinical and airway biopsy characteristics. Pulm Med. 2012; 2012:829608. Barbers RG, Papanikolaou IC, Koss MN, Patel A, Katagihara E, Arenas M, Chan K, Azen CG, Sharma OP. PMID: 22448330; PMCID: PMC3289876.
      View in: PubMed   Mentions: 2     Fields:    
    15. Outcomes after lung transplantation and practices of lung transplant programs in the United States regarding hepatitis C seropositive recipients. Transplantation. 2011 Jun 15; 91(11):1293-6. Fong TL, Cho YW, Hou L, Hutchinson IV, Barbers RG, Herrington CS. PMID: 21516068.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    16. Pericardial constriction after lung transplantation. Ann Thorac Surg. 2010 Oct; 90(4):1361-3. Afshar K, Cunningham MJ, Barbers RG, McFadden PM. PMID: 20868850.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    17. Effectiveness and safety of bronchial thermoplasty in the treatment of severe asthma: a multicenter, randomized, double-blind, sham-controlled clinical trial. Am J Respir Crit Care Med. 2010 Jan 15; 181(2):116-24. Castro M, Rubin AS, Laviolette M, Fiterman J, De Andrade Lima M, Shah PL, Fiss E, Olivenstein R, Thomson NC, Niven RM, Pavord ID, Simoff M, Duhamel DR, McEvoy C, Barbers R, Ten Hacken NH, Wechsler ME, Holmes M, Phillips MJ, Erzurum S, Lunn W, Israel E, Jarjour N, Kraft M, Shargill NS, Quiring J, Berry SM, Cox G, AIR2 Trial Study Group. PMID: 19815809; PMCID: PMC3269231.
      View in: PubMed   Mentions: 213     Fields:    Translation:Humans
    18. Back to the future. Asthma. Curr Opin Pulm Med. 2008 Jan; 14(1):1-2. Barbers RG. PMID: 18043268.
      View in: PubMed   Mentions:    Fields:    Translation:HumansPHPublic Health
    19. Long-term pulmonary function after living-donor lobar lung transplantation in adults. Ann Thorac Surg. 2005 Feb; 79(2):418-25. Bowdish ME, Pessotto R, Barbers RG, Schenkel FA, Starnes VA, Barr ML. PMID: 15680807.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansCTClinical Trials
    20. A decade of living lobar lung transplantation: perioperative complications after 253 donor lobectomies. Am J Transplant. 2004 Aug; 4(8):1283-8. Bowdish ME, Barr ML, Schenkel FA, Woo MS, Bremner RM, Horn MV, Baker CJ, Barbers RG, Wells WJ, Starnes VA. PMID: 15268729.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    21. A decade of living lobar lung transplantation: recipient outcomes. J Thorac Cardiovasc Surg. 2004 Jan; 127(1):114-22. Starnes VA, Bowdish ME, Woo MS, Barbers RG, Schenkel FA, Horn MV, Pessotto R, Sievers EM, Baker CJ, Cohen RG, Bremner RM, Wells WJ, Barr ML. PMID: 14752421.
      View in: PubMed   Mentions: 19     Fields:    Translation:Humans
    22. Regulation of activin A expression in mast cells and asthma: its effect on the proliferation of human airway smooth muscle cells. J Immunol. 2003 Apr 15; 170(8):4045-52. Cho SH, Yao Z, Wang SW, Alban RF, Barbers RG, French SW, Oh CK. PMID: 12682233.
      View in: PubMed   Mentions: 21     Fields:    Translation:HumansAnimalsCells
    23. Living donor lung transplantation: selection, technique, and outcome. Transplant Proc. 2001 Nov-Dec; 33(7-8):3527-32. Barr ML, Baker CJ, Schenkel FA, Bowdish ME, Bremner RM, Cohen RG, Barbers RG, Woo MS, Horn MV, Wells WJ, Starnes VA. PMID: 11750504.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    24. Asthma in Y2K and beyond. Curr Opin Pulm Med. 2000 Jan; 6(1):1-3. Barbers R. PMID: 10608417.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    25. Novel bacterium isolated from a lung transplant patient with cystic fibrosis. J Clin Microbiol. 1999 Dec; 37(12):3851-5. Pitulle C, Citron DM, Bochner B, Barbers R, Appleman MD. PMID: 10565895; PMCID: PMC85827.
      View in: PubMed   Mentions: 15     Fields:    Translation:HumansCells
    26. Lung transplantation for cystic fibrosis: an update and practical considerations for referring candidates. Curr Opin Pulm Med. 1999 Nov; 5(6):365-70. Shapiro BJ, Veeraraghavan S, Barbers RG. PMID: 10570738.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    27. Management of the severe asthmatic. Curr Opin Pulm Med. 1999 Jan; 5(1):58-62. Miller TP, Barbers RG. PMID: 10813251.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    28. Recipient and donor outcomes in living related and unrelated lobar transplantation. Transplant Proc. 1998 Aug; 30(5):2261-3. Barr ML, Schenkel FA, Cohen RG, Barbers RG, Fuller CB, Hagen JA, Wells WJ, Starnes VA. PMID: 9723463.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    29. Cystic fibrosis: bilateral living lobar versus cadaveric lung transplantation. Am J Med Sci. 1998 Mar; 315(3):155-60. Barbers RG. PMID: 9519928.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    30. The detection of recurrent sarcoidosis by FDG-PET in a lung transplant recipient. West J Med. 1998 Feb; 168(2):130-2. Kiatboonsri C, Resnick SC, Chan KM, Barbers RG, Marboe CC, Khonsary A, Santiago SM, Sharma OP. PMID: 9499753; PMCID: PMC1304848.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    31. Costs associated with asthma treatment. Curr Opin Pulm Med. 1998 Jan; 4(1):1-3. Barbers R. PMID: 9526897.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    32. Critical care management of the asthmatic patient. Curr Opin Pulm Med. 1998 Jan; 4(1):4-8. Hananel JI, Barbers RG. PMID: 9526898.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    33. Role of transplantation (lung, liver, and heart) in sarcoidosis. Clin Chest Med. 1997 Dec; 18(4):865-74. Barbers RG. PMID: 9413664.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    34. Newer therapeutic interventions for pulmonary transplant rejection. Curr Opin Pulm Med. 1997 Sep; 3(5):366-71. Barbers RG. PMID: 9331539.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    35. Living donor lobar lung transplants and HLA matching: a preliminary report. Transplant Proc. 1997 Feb-Mar; 29(1-2):1418-9. Iwata H, Barr ML, Cicciarelli JC, Iwaki Y, Schenkel FA, Fein H, Chan KM, Barbers RG, Starnes VA, Marboe CC. PMID: 9123362.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    36. Bilateral lobar transplantation utilizing living related donors. Artif Organs. 1996 Oct; 20(10):1110-1. Barr ML, Schenkel FA, Cohen RG, Chan KM, Marboe CC, Hagen JA, Barbers RG, Starnes VA. PMID: 8896729.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    37. Advances in lung transplantation. West J Med. 1996 May; 164(5):439-40. Chan KM, Barbers RG. PMID: 8686302; PMCID: PMC1303544.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    38. Whole-lung vs lobe transplantation for adults. Arch Intern Med. 1996 Apr 22; 156(8):908. Shapiro BJ, Chan KM, Barbers RG, Starnes VA. PMID: 8774210.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    39. Lung transplantation in interstitial lung disease. Curr Opin Pulm Med. 1995 Sep; 1(5):401-5. Barbers RG. PMID: 9363102.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    40. Living-related lobar transplantation: recipient outcome and early rejection patterns. Transplant Proc. 1995 Jun; 27(3):1995-6. Barr ML, Schenkel FA, Cohen RG, Chan KM, Barbers RG, Marboe CC, Starnes VA. PMID: 7792863.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    41. The technique of percutaneous transthoracic needle aspiration biopsy. J Crit Illn. 1994 Oct; 9(10):949-54. Barbers RG, Niden AH. PMID: 10150696.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    42. Lymphocytic subpopulation profiles in bronchoalveolar lavage fluid and peripheral blood from tobacco and marijuana smokers. Chest. 1994 Mar; 105(3):847-52. Wallace JM, Oishi JS, Barbers RG, Simmons MS, Tashkin DP. PMID: 7907538.
      View in: PubMed   Mentions: 9     Fields:    Translation:HumansCells
    43. Enhanced alveolar monocytic phagocyte (macrophage) proliferation in tobacco and marijuana smokers. Am Rev Respir Dis. 1991 May; 143(5 Pt 1):1092-5. Barbers RG, Evans MJ, Gong H, Tashkin DP. PMID: 2024820.
      View in: PubMed   Mentions: 10     Fields:    Translation:HumansAnimalsCells
    44. Effects of habitual use of marijuana and/or cocaine on the lung. NIDA Res Monogr. 1990; 99:63-87. Tashkin DP, Fligiel S, Wu TC, Gong H, Barbers RG, Coulson AH, Simmons MS, Beals TF. PMID: 2267014.
      View in: PubMed   Mentions: 8     Fields:    Translation:HumansCells
    45. Asbestosis occurring after brief inhalational exposure: usefulness of bronchoalveolar lavage in diagnosis. Br J Ind Med. 1989 Feb; 46(2):106-10. Barbers RG, Abraham JL. PMID: 2538140; PMCID: PMC1009735.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    46. Antibody-dependent cellular cytotoxicity mediated by lung macrophages: a comparison of two target cells. Respiration. 1989; 55(2):94-104. Barbers RG, Oishi J, Gong H, Baker S. PMID: 2772417.
      View in: PubMed   Mentions:    Fields:    Translation:HumansAnimalsCells
    47. Bronchoalveolar lavage cell and lymphocyte phenotype profiles in healthy asbestos-exposed shipyard workers. Am Rev Respir Dis. 1989 Jan; 139(1):33-8. Wallace JM, Oishi JS, Barbers RG, Batra P, Aberle DR. PMID: 2912354.
      View in: PubMed   Mentions: 3     Fields:    Translation:HumansCellsPHPublic Health
    48. Chemotaxis of peripheral blood and lung leukocytes obtained from tobacco and marijuana smokers. J Psychoactive Drugs. 1988 Jan-Mar; 20(1):15-20. Barbers RG, Oishi J, Gong H, Tashkin DP, Wallace JM, Baker SS. PMID: 3392628.
      View in: PubMed   Mentions:    Fields:    Translation:HumansCells
    49. Peripheral blood lymphocyte subpopulations and mitogen responsiveness in tobacco and marijuana smokers. J Psychoactive Drugs. 1988 Jan-Mar; 20(1):9-14. Wallace JM, Tashkin DP, Oishi JS, Barbers RG. PMID: 3392635.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansCells
    50. Regulation of 1,25-dihydroxyvitamin D3 production by cultured alveolar macrophages from normal human donors and from patients with pulmonary sarcoidosis. J Clin Endocrinol Metab. 1987 Dec; 65(6):1201-9. Reichel H, Koeffler HP, Barbers R, Norman AW. PMID: 3119653.
      View in: PubMed   Mentions: 43     Fields:    Translation:HumansCells
    51. Tracheobronchial changes in habitual, heavy smokers of marijuana with and without tobacco. Am Rev Respir Dis. 1987 Jul; 136(1):142-9. Gong H, Fligiel S, Tashkin DP, Barbers RG. PMID: 3496818.
      View in: PubMed   Mentions: 32     Fields:    Translation:Humans
    52. Effects of in vitro asbestos exposure on natural killer and antibody-dependent cellular cytotoxicity. Environ Res. 1987 Jun; 43(1):217-26. Barbers RG, Oishi J. PMID: 3034562.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansCells
    53. Differential examination of bronchoalveolar lavage cells in tobacco cigarette and marijuana smokers. Am Rev Respir Dis. 1987 Jun; 135(6):1271-5. Barbers RG, Gong H, Tashkin DP, Oishi J, Wallace JM. PMID: 3592403.
      View in: PubMed   Mentions: 15     Fields:    Translation:HumansAnimals
    54. Bedside bronchoalveolar lavage for the diagnosis of Pneumocystis carinii pneumonia in patients with the acquired immunodeficiency syndrome. AIDS Res. 1986 Feb; 2(1):31-41. Flick GR, Barbers RG, Gong H. PMID: 3487328.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    55. Cellular and T-lymphocyte subpopulation profiles in bronchoalveolar lavage fluid from patients with acquired immunodeficiency syndrome and pneumonitis. Am Rev Respir Dis. 1984 Nov; 130(5):786-90. Wallace JM, Barbers RG, Oishi JS, Prince H. PMID: 6093655.
      View in: PubMed   Mentions: 6     Fields:    Translation:HumansCells
    56. In vitro depression of human lymphocyte mitogen response (phytohaemagglutinin) by asbestos fibres. Clin Exp Immunol. 1982 Jun; 48(3):602-10. Barbers RG, Shih WW, Saxon A. PMID: 7116687; PMCID: PMC1536621.
      View in: PubMed   Mentions: 3     Fields:    Translation:HumansCells
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