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Robert Kirken

TitleDean College of Science and PI RCMI Grant
Faculty RankProfessor
InstitutionUniversity of Texas at El Paso
DepartmentBiological Sciences
AddressUniversity of Texas at El Paso
500 W. University
Bioscience Research Building
El Paso TX 79968
Phone915747 5536
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    The goal of the laboratory is to understand the intracellular signaling pathways responsible for mediating T cell activation so that rational strategies to regulate immune responses can be achieved. To accomplish this objective it is necessary to first understand the mechanisms through which these cells are activated. It is clear that T cell activation requires engagement with antigen, costimulatory molecules, and intercellular signaling peptides called cytokines. One cytokine we are particularly interested in is interleukin 2 (IL2). IL2 belongs to a family of cytokines that utilize a shared receptor subunit referred to as the IL2 receptor common gamma (g) chain, or gc. This receptor is recruited by one of several cytokines, which then activate a select member of the Janus tyrosine Kinase (JAK) family, JAK3. JAK3 plays a key role in the development and function of T cells. However, the intracellular molecules activated by JAK3 are not readily known nor the genes it regulates. Therefore, the laboratory is focused on identifying and characterizing these signaling proteins to better understand this event. We are particularly interested in a family of gene regulating molecules known as signal transducers and activators of transcription (Stats) and several ongoing studies in the laboratory are examining the role that Stat5a and Stat5b perform in regulating T cell activity and disease. Through critical analysis of these signaling pathways it will be possible to utilize pharmaceuticals to manipulate these secondary messengers and subsequently modulate an immune response. Ultimately, these studies will enable us to develop novel immunomodulatory drugs with therapeutic potential against important clinical conditions such as cancer, graft-versus-host disease, allergy, and autoimmune disorders

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    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. Grant AH, Estrada A, Ayala-Marin YM, Alvidrez-Camacho AY, Rodriguez G, Robles-Escajeda E, Cadena-Medina DA, Rodriguez AC, Kirken RA. The Many Faces of JAKs and STATs Within the COVID-19 Storm. Front Immunol. 2021; 12:690477. PMID: 34326843.
      Citations:    Fields:    
    2. Grant AH, Ayala-Marin YM, Mohl JE, Robles-Escajeda E, Rodriguez G, Dutil J, Kirken RA. The Genomic Landscape of a Restricted ALL Cohort from Patients Residing on the U.S./Mexico Border. Int J Environ Res Public Health. 2021 07 09; 18(14). PMID: 34299796.
      Citations:    Fields:    
    3. Valenzuela P, Oaxaca D, Di Desidero T, Parra K, Rodriguez G, Manciu M, Allegrini G, Falcone A, Bocci G, Kirken RA, Francia G. Pharmacodynamic biomarkers in metronomic chemotherapy: multiplex cytokine measurements in gastrointestinal cancer patients. Clin Exp Med. 2021 Feb; 21(1):149-159. PMID: 33048259.
      Citations: 1     Fields:    
    4. Cho SG, Xiao X, Wang S, Gao H, Rafikov R, Black S, Huang S, Ding HF, Yoon Y, Kirken RA, Yin XM, Wang HG, Dong Z. Bif-1 Interacts with Prohibitin-2 to Regulate Mitochondrial Inner Membrane during Cell Stress and Apoptosis. J Am Soc Nephrol. 2019 07; 30(7):1174-1191. PMID: 31126972.
      Citations: 8     Fields:    Translation:HumansAnimalsCells
    5. Ruiz-Medina BE, Lerma D, Hwang M, Ross JA, Skouta R, Aguilera RJ, Kirken RA, Varela-Ramirez A, Robles-Escajeda E. Green barley mitigates cytotoxicity in human lymphocytes undergoing aggressive oxidative stress, via activation of both the Lyn/PI3K/Akt and MAPK/ERK pathways. Sci Rep. 2019 04 12; 9(1):6005. PMID: 30979953.
      Citations: 11     Fields:    Translation:HumansAnimalsCells
    6. Hartman LLR, Oaxaca DM, Carcamo B, Wilson HL, Ross JA, Robles-Escajeda E, Kirken RA. Integration of a Personalized Molecular Targeted Therapy into the Multimodal Treatment of Refractory Childhood Embryonal Tumor with Multilayered Rosettes (ETMR). Case Rep Oncol. 2019 Jan-Apr; 12(1):211-217. PMID: 31011318.
      Citations:    
    7. Ofili EO, Tchounwou PB, Fernandez-Repollet E, Yanagihara R, Akintobi TH, Lee JE, Malouhi M, Garner ST, Hayes TT, Baker AR, Dent AL, Abdelrahim M, Rollins L, Chang SP, Sy A, Hernandez BY, Bullard PL, Noel RJ, Shiramizu B, Hedges JR, Berry MJ, Bond VC, Lima MF, Mokuau N, Kirken RA, Cruz-Correa M, Sarpong DF, Vadgama J, Yates C, Kahn SA, Soliman KF, Perry G, Pezzano M, Luciano CA, Barnett ME, Oyekan A, Kumar D, Norris KC. The Research Centers in Minority Institutions (RCMI) Translational Research Network: Building and Sustaining Capacity for Multi-Site Basic Biomedical, Clinical and Behavioral Research. Ethn Dis. 2019; 29(Suppl 1):135-144. PMID: 30906162.
      Citations: 5     Fields:    Translation:Humans
    8. Manciu M, Hosseini S, Di Desidero T, Allegrini G, Falcone A, Bocci G, Kirken RA, Francia G. Optimization of biomarkers-based classification scores as progression-free survival predictors: an intuitive graphical representation. Future Sci OA. 2018 12; 4(10):FSO346. PMID: 30450233.
      Citations:    
    9. Ruiz-Medina BE, Cadena-Medina DA, Esparza E, Arrieta AJ, Kirken RA. Isoproterenol-induced beta-2 adrenergic receptor activation negatively regulates interleukin-2 signaling. Biochem J. 2018 09 18; 475(18):2907-2923. PMID: 30120106.
      Citations: 2     Fields:    Translation:HumansCells
    10. Fu G, Sanjay ST, Zhou W, Brekken RA, Kirken RA, Li X. Exploration of Nanoparticle-Mediated Photothermal Effect of TMB-H2O2 Colorimetric System and Its Application in a Visual Quantitative Photothermal Immunoassay. Anal Chem. 2018 05 01; 90(9):5930-5937. PMID: 29641893.
      Citations: 12     Fields:    Translation:HumansCells
    11. Ross JA, Robles-Escajeda E, Oaxaca DM, Padilla DL, Kirken RA. The prohibitin protein complex promotes mitochondrial stabilization and cell survival in hematologic malignancies. Oncotarget. 2017 Sep 12; 8(39):65445-65456. PMID: 29029444.
      Citations: 7     Fields:    
    12. Parra K, Valenzuela P, Lerma N, Gallegos A, Reza LC, Rodriguez G, Emmenegger U, Di Desidero T, Bocci G, Felder MS, Manciu M, Kirken RA, Francia G. Impact of CTLA-4 blockade in conjunction with metronomic chemotherapy on preclinical breast cancer growth. Br J Cancer. 2017 01; 116(3):324-334. PMID: 28056464.
      Citations: 14     Fields:    Translation:AnimalsCells
    13. Oaxaca DM, Yang-Reid SA, Ross JA, Rodriguez G, Staniswalis JG, Kirken RA. Sensitivity of imatinib-resistant T315I BCR-ABL CML to a synergistic combination of ponatinib and forskolin treatment. Tumour Biol. 2016 Sep; 37(9):12643-12654. PMID: 27444277.
      Citations: 1     Fields:    Translation:HumansCells
    14. Martinez GS, Ross JA, Kirken RA. Transforming Mutations of Jak3 (A573V and M511I) Show Differential Sensitivity to Selective Jak3 Inhibitors. Clin Cancer Drugs. 2016; 3(2):131-137. PMID: 29046866.
      Citations:    
    15. Ruiz-Medina BE, Ross JA, Kirken RA. Interleukin-2 Receptor ß Thr-450 Phosphorylation Is a Positive Regulator for Receptor Complex Stability and Activation of Signaling Molecules. J Biol Chem. 2015 Aug 21; 290(34):20972-20983. PMID: 26152718.
      Citations: 5     Fields:    Translation:HumansCells
    16. Gonzalez H, Lema C, Kirken RA, Maldonado RA, Varela-Ramirez A, Aguilera RJ. Arsenic-exposed Keratinocytes Exhibit Differential microRNAs Expression Profile; Potential Implication of miR-21, miR-200a and miR-141 in Melanoma Pathway. Clin Cancer Drugs. 2015; 2(2):138-147. PMID: 27054085.
      Citations:    
    17. Robles-Escajeda E, Lerma D, Nyakeriga AM, Ross JA, Kirken RA, Aguilera RJ, Varela-Ramirez A. Searching in mother nature for anti-cancer activity: anti-proliferative and pro-apoptotic effect elicited by green barley on leukemia/lymphoma cells. PLoS One. 2013; 8(9):e73508. PMID: 24039967.
      Citations: 33     Fields:    Translation:HumansAnimalsCells
    18. Nagy ZS, Ross JA, Rodriguez G, Balint BL, Szeles L, Nagy L, Kirken RA. Genome wide mapping reveals PDE4B as an IL-2 induced STAT5 target gene in activated human PBMCs and lymphoid cancer cells. PLoS One. 2013; 8(2):e57326. PMID: 23451206.
      Citations: 6     Fields:    Translation:HumansCells
    19. Rodriguez G, Ross JA, Nagy ZS, Kirken RA. Forskolin-inducible cAMP pathway negatively regulates T-cell proliferation by uncoupling the interleukin-2 receptor complex. J Biol Chem. 2013 Mar 08; 288(10):7137-46. PMID: 23341462.
      Citations: 16     Fields:    Translation:HumansCells
    20. Ross JA, Rodriguez G, Kirken RA. Analysis of Janus tyrosine kinase phosphorylation and activation. Methods Mol Biol. 2013; 967:3-20. PMID: 23296718.
      Citations: 1     Fields:    Translation:HumansCells
    21. Mitra A, Ross JA, Rodriguez G, Nagy ZS, Wilson HL, Kirken RA. Signal transducer and activator of transcription 5b (Stat5b) serine 193 is a novel cytokine-induced phospho-regulatory site that is constitutively activated in primary hematopoietic malignancies. J Biol Chem. 2012 May 11; 287(20):16596-608. PMID: 22442148.
      Citations: 14     Fields:    Translation:HumansCells
    22. Nagy ZS, Ross JA, Rodriguez G, Bader J, Dimmock J, Kirken RA. Uncoupling JAK3 activation induces apoptosis in human lymphoid cancer cells via regulating critical survival pathways. FEBS Lett. 2010 Apr 16; 584(8):1515-20. PMID: 20211620.
      Citations: 2     Fields:    Translation:HumansCells
    23. Ross JA, Cheng H, Nagy ZS, Frost JA, Kirken RA. Protein phosphatase 2A regulates interleukin-2 receptor complex formation and JAK3/STAT5 activation. J Biol Chem. 2010 Feb 05; 285(6):3582-3591. PMID: 19923221.
      Citations: 18     Fields:    Translation:HumansCells
    24. Nagy ZS, LeBaron MJ, Ross JA, Mitra A, Rui H, Kirken RA. STAT5 regulation of BCL10 parallels constitutive NFkappaB activation in lymphoid tumor cells. Mol Cancer. 2009 Aug 26; 8:67. PMID: 19709433.
      Citations: 18     Fields:    Translation:HumansCells
    25. Stepkowski SM, Chen W, Ross JA, Nagy ZS, Kirken RA. STAT3: an important regulator of multiple cytokine functions. Transplantation. 2008 May 27; 85(10):1372-7. PMID: 18497672.
      Citations: 23     Fields:    Translation:HumansCells
    26. Dagvadorj A, Kirken RA, Leiby B, Karras J, Nevalainen MT. Transcription factor signal transducer and activator of transcription 5 promotes growth of human prostate cancer cells in vivo. Clin Cancer Res. 2008 Mar 01; 14(5):1317-24. PMID: 18316550.
      Citations: 47     Fields:    Translation:HumansAnimalsCells
    27. Cheng H, Ross JA, Frost JA, Kirken RA. Phosphorylation of human Jak3 at tyrosines 904 and 939 positively regulates its activity. Mol Cell Biol. 2008 Apr; 28(7):2271-82. PMID: 18250158.
      Citations: 14     Fields:    Translation:HumansCells
    28. Tan SH, Dagvadorj A, Shen F, Gu L, Liao Z, Abdulghani J, Zhang Y, Gelmann EP, Zellweger T, Culig Z, Visakorpi T, Bubendorf L, Kirken RA, Karras J, Nevalainen MT. Transcription factor Stat5 synergizes with androgen receptor in prostate cancer cells. Cancer Res. 2008 Jan 01; 68(1):236-48. PMID: 18172316.
      Citations: 48     Fields:    Translation:HumansCells
    29. Ross JA, Nagy ZS, Kirken RA. The PHB1/2 phosphocomplex is required for mitochondrial homeostasis and survival of human T cells. J Biol Chem. 2008 Feb 22; 283(8):4699-713. PMID: 18086671.
      Citations: 34     Fields:    Translation:HumansCells
    30. Ross JA, Nagy ZS, Cheng H, Stepkowski SM, Kirken RA. Regulation of T cell homeostasis by JAKs and STATs. Arch Immunol Ther Exp (Warsz). 2007 Jul-Aug; 55(4):231-45. PMID: 17659375.
      Citations: 17     Fields:    Translation:HumansAnimalsCells
    31. Neilson LM, Zhu J, Xie J, Malabarba MG, Sakamoto K, Wagner KU, Kirken RA, Rui H. Coactivation of janus tyrosine kinase (Jak)1 positively modulates prolactin-Jak2 signaling in breast cancer: recruitment of ERK and signal transducer and activator of transcription (Stat)3 and enhancement of Akt and Stat5a/b pathways. Mol Endocrinol. 2007 Sep; 21(9):2218-32. PMID: 17550976.
      Citations: 25     Fields:    Translation:HumansCells
    32. Nagy ZS, Rui H, Stepkowski SM, Karras J, Kirken RA. A preferential role for STAT5, not constitutively active STAT3, in promoting survival of a human lymphoid tumor. J Immunol. 2006 Oct 15; 177(8):5032-40. PMID: 17015686.
      Citations: 13     Fields:    Translation:HumansCells
    33. Stepkowski SM, Kirken RA. Janus tyrosine kinases and signal transducers and activators of transcription regulate critical functions of T cells in allograft rejection and transplantation tolerance. Transplantation. 2006 Aug 15; 82(3):295-303. PMID: 16906023.
      Citations: 8     Fields:    Translation:HumansAnimalsCells
    34. Qiu L, Lai R, Lin Q, Lau E, Thomazy DM, Calame D, Ford RJ, Kwak LW, Kirken RA, Amin HM. Autocrine release of interleukin-9 promotes Jak3-dependent survival of ALK+ anaplastic large-cell lymphoma cells. Blood. 2006 Oct 01; 108(7):2407-15. PMID: 16763206.
      Citations: 39     Fields:    Translation:HumansAnimals
    35. Zhang Y, Kirken RA, Furian L, Janczewska S, Qu X, Hancock WW, Wang M, Tejpal N, Kerman R, Kahan BD, Stepkowski SM. Allograft rejection requires STAT5a/b-regulated antiapoptotic activity in T cells but not B cells. J Immunol. 2006 Jan 01; 176(1):128-37. PMID: 16365403.
      Citations: 3     Fields:    Translation:AnimalsCells
    36. Stepkowski SM, Kao J, Wang ME, Tejpal N, Podder H, Furian L, Dimmock J, Jha A, Das U, Kahan BD, Kirken RA. The Mannich base NC1153 promotes long-term allograft survival and spares the recipient from multiple toxicities. J Immunol. 2005 Oct 01; 175(7):4236-46. PMID: 16177063.
      Citations: 10     Fields:    Translation:HumansAnimalsCells
    37. Stepkowski SM, Kirken RA. Unique advantage of Janus kinase 3 as a target for selective and nontoxic immunosuppression. Expert Rev Clin Immunol. 2005 Sep; 1(3):307-10. PMID: 20476981.
      Citations:    Fields:    
    38. Langer R, Wang M, Stepkowski SM, Hancock WW, Han R, Li P, Feng L, Kirken RA, Berens KL, Dupre B, Podder H, Dixon RA, Kahan BD. Selectin inhibitor bimosiamose prolongs survival of kidney allografts by reduction in intragraft production of cytokines and chemokines. J Am Soc Nephrol. 2004 Nov; 15(11):2893-901. PMID: 15504942.
      Citations: 4     Fields:    Translation:Animals
    39. Wang Y, Malabarba MG, Nagy ZS, Kirken RA. Interleukin 4 regulates phosphorylation of serine 756 in the transactivation domain of Stat6. Roles for multiple phosphorylation sites and Stat6 function. J Biol Chem. 2004 Jun 11; 279(24):25196-203. PMID: 15069079.
      Citations: 16     Fields:    Translation:HumansCells
    40. Nagy ZS, Ross J, Cheng H, Stepkowski SM, Kirken RA. Regulation of lymphoid cell apoptosis by Jaks and Stats. Crit Rev Immunol. 2004; 24(2):87-110. PMID: 15581392.
      Citations: 3     Fields:    Translation:AnimalsCells
    41. Behbod F, Nagy ZS, Stepkowski SM, Karras J, Johnson CR, Jarvis WD, Kirken RA. Specific inhibition of Stat5a/b promotes apoptosis of IL-2-responsive primary and tumor-derived lymphoid cells. J Immunol. 2003 Oct 15; 171(8):3919-27. PMID: 14530308.
      Citations: 15     Fields:    Translation:HumansCells
    42. Kahan BD, Kirken RA, Stepkowski SM. New approaches to transplant immunosuppression. Transplant Proc. 2003 Aug; 35(5):1621-3. PMID: 12962733.
      Citations:    Fields:    Translation:HumansCells
    43. Kirken RA, Wang YL. Molecular actions of sirolimus: sirolimus and mTor. Transplant Proc. 2003 May; 35(3 Suppl):227S-230S. PMID: 12742500.
      Citations: 12     Fields:    Translation:HumansCells
    44. Nagy ZS, Wang Y, Erwin-Cohen RA, Aradi J, Monia B, Wang LH, Stepkowski SM, Rui H, Kirken RA. Interleukin-2 family cytokines stimulate phosphorylation of the Pro-Ser-Pro motif of Stat5 transcription factors in human T cells: resistance to suppression of multiple serine kinase pathways. J Leukoc Biol. 2002 Oct; 72(4):819-28. PMID: 12377952.
      Citations: 12     Fields:    Translation:HumansCells
    45. Stepkowski SM, Kirken RA, Trawick BW, Wang M, Tejpal N, Wang ME, Tian L, Clark J, Kahan BD. Allochimeric class I MHC protein-induced tolerance by partial TCR engagement requires activation of both CTL4- and common gamma-chain-dependent cytokine signals. Transplantation. 2002 Apr 27; 73(8):1227-35. PMID: 11981413.
      Citations: 3     Fields:    Translation:AnimalsCells
    46. Stepkowski SM, Erwin-Cohen RA, Behbod F, Wang ME, Qu X, Tejpal N, Nagy ZS, Kahan BD, Kirken RA. Selective inhibitor of Janus tyrosine kinase 3, PNU156804, prolongs allograft survival and acts synergistically with cyclosporine but additively with rapamycin. Blood. 2002 Jan 15; 99(2):680-9. PMID: 11781254.
      Citations: 13     Fields:    Translation:HumansAnimalsCells
    47. Stepkowski SM, Nagy ZS, Wang ME, Behbod F, Erwin-Cohen R, Kahan BD, Kirken RA. PNU156804 inhibits Jak3 tyrosine kinase and rat heart allograft rejection. Transplant Proc. 2001 Nov-Dec; 33(7-8):3272-3. PMID: 11750401.
      Citations: 2     Fields:    Translation:HumansAnimalsCells
    48. Kirken RA. Targeting Jak3 for immune suppression and allograft acceptance. Transplant Proc. 2001 Nov-Dec; 33(7-8):3268-70. PMID: 11750399.
      Citations:    Fields:    Translation:HumansCells
    49. Stepkowski SM, Nagy ZS, Kahan BD, Kirken RA. The role of signals 1, 2, and 3 in induction of transplantation tolerance. Transplant Proc. 2001 Nov-Dec; 33(7-8):3831-2. PMID: 11750632.
      Citations:    Fields:    Translation:AnimalsCells
    50. Stepkowski SM, Kirken RA, Nagy ZS, Trawick BW, Wang M, Tejpal N, Wang ME, Tian L, Clark J, Kahan BD. The role of Stat5 in the induction of regulatory T cells in transplantation tolerance. Transplant Proc. 2001 Nov-Dec; 33(7-8):3835-6. PMID: 11750634.
      Citations:    Fields:    Translation:AnimalsCells
    51. Yamashita H, Nevalainen MT, Xu J, LeBaron MJ, Wagner KU, Erwin RA, Harmon JM, Hennighausen L, Kirken RA, Rui H. Role of serine phosphorylation of Stat5a in prolactin-stimulated beta-casein gene expression. Mol Cell Endocrinol. 2001 Oct 25; 183(1-2):151-63. PMID: 11604235.
      Citations: 24     Fields:    Translation:HumansAnimalsCells
    52. Qu X, Kirken RA, Tian L, Wang M, Bennett CF, Stepkowski SM. Selective inhibition of IL-2 gene expression by IL-2 antisense oligonucleotides blocks heart allograft rejection. Transplantation. 2001 Sep 15; 72(5):915-23. PMID: 11571459.
      Citations: 2     Fields:    Translation:AnimalsCells
    53. Behbod F, Erwin-Cohen RA, Wang ME, Trawick BW, Qu X, Verani R, Kahan BD, Stepkowski SM, Kirken RA. Concomitant inhibition of Janus kinase 3 and calcineurin-dependent signaling pathways synergistically prolongs the survival of rat heart allografts. J Immunol. 2001 Mar 15; 166(6):3724-32. PMID: 11238613.
      Citations: 9     Fields:    Translation:HumansAnimalsCells
    54. Kirken RA, Erwin-Cohen R, Behbod F, Wang M, Stepkowski SM, Kahan BD. Tyrphostin AG490 selectively inhibits activation of the JAK3/STAT5/MAPK pathway and rejection of rat heart allografts. Transplant Proc. 2001 Feb-Mar; 33(1-2):95. PMID: 11266723.
      Citations: 2     Fields:    Translation:AnimalsCells
    55. Stepkowski SM, Kirken RA, Wang M, Yu J, Akioka K, Kahan BD. Tolerance induction by alteration of T cell receptor (TCR) signaling using an allochimeric donor/recipient class I MHC protein. Transplant Proc. 2001 Feb-Mar; 33(1-2):131. PMID: 11266741.
      Citations:    Fields:    Translation:Animals
    56. Wang M, Kirken R, Behbod F, Erwin-Cohen R, Stepkowski SM, Kahan BD. Inhibition of Jak3 tyrosine kinase by PNU156804 blocks rat heart allograft rejection. Transplant Proc. 2001 Feb-Mar; 33(1-2):201. PMID: 11266779.
      Citations:    Fields:    Translation:Animals
    57. Tian L, Qu X, Wang ME, Kirken RA, Bennett FC, Stepkowski SM. Selective inhibition of IL-2 mRNA blocks allograft rejection by limiting T cell clonal expansion. Transplant Proc. 2001 Feb-Mar; 33(1-2):330. PMID: 11266845.
      Citations:    Fields:    Translation:AnimalsCells
    58. Yen CH, Yang YC, Ruscetti SK, Kirken RA, Dai RM, Li CC. Involvement of the ubiquitin-proteasome pathway in the degradation of nontyrosine kinase-type cytokine receptors of IL-9, IL-2, and erythropoietin. J Immunol. 2000 Dec 01; 165(11):6372-80. PMID: 11086075.
      Citations: 19     Fields:    Translation:AnimalsCells
    59. Kirken RA, Erwin RA, Wang L, Wang Y, Rui H, Farrar WL. Functional uncoupling of the Janus kinase 3-Stat5 pathway in malignant growth of human T cell leukemia virus type 1-transformed human T cells. J Immunol. 2000 Nov 01; 165(9):5097-104. PMID: 11046040.
      Citations: 16     Fields:    Translation:HumansCells
    60. Stepkowski SM, Kirken RA. The role of IL-2 in allograft rejection--a lesson learned from experimental work. Transplantation. 2000 Jun 27; 69(12):2480-2. PMID: 10910265.
      Citations:    Fields:    Translation:Animals
    61. Wang LH, Kirken RA, Yang XY, Erwin RA, DaSilva L, Yu CR, Farrar WL. Selective disruption of interleukin 4 autocrine-regulated loop by a tyrosine kinase inhibitor restricts activity of T-helper 2 cells. Blood. 2000 Jun 15; 95(12):3816-22. PMID: 10845915.
      Citations: 2     Fields:    Translation:AnimalsCells
    62. Wang LH, Yang XY, Kirken RA, Resau JH, Farrar WL. Targeted disruption of stat6 DNA binding activity by an oligonucleotide decoy blocks IL-4-driven T(H)2 cell response. Blood. 2000 Feb 15; 95(4):1249-57. PMID: 10666197.
      Citations: 14     Fields:    Translation:HumansCells
    63. Kirken RA, Erwin RA, Taub D, Murphy WJ, Behbod F, Wang L, Pericle F, Farrar WL. Tyrphostin AG-490 inhibits cytokine-mediated JAK3/STAT5a/b signal transduction and cellular proliferation of antigen-activated human T cells. J Leukoc Biol. 1999 Jun; 65(6):891-9. PMID: 10380915.
      Citations: 20     Fields:    Translation:HumansAnimalsCells
    64. Wang LH, Kirken RA, Erwin RA, Yu CR, Farrar WL. JAK3, STAT, and MAPK signaling pathways as novel molecular targets for the tyrphostin AG-490 regulation of IL-2-mediated T cell response. J Immunol. 1999 Apr 01; 162(7):3897-904. PMID: 10201908.
      Citations: 35     Fields:    Translation:Cells
    65. Yamashita H, Xu J, Erwin RA, Farrar WL, Kirken RA, Rui H. Differential control of the phosphorylation state of proline-juxtaposed serine residues Ser725 of Stat5a and Ser730 of Stat5b in prolactin-sensitive cells. J Biol Chem. 1998 Nov 13; 273(46):30218-24. PMID: 9804779.
      Citations: 37     Fields:    Translation:AnimalsCells
    66. DaSilva L, Kirken RA, Taub DD, Evans GA, Duhé RJ, Bailey MA, Farrar WL. Molecular cloning of FKHRL1P2, a member of the developmentally regulated fork head domain transcription factor family. Gene. 1998 Oct 09; 221(1):135-42. PMID: 9852958.
      Citations:    Fields:    Translation:HumansCells
    67. Yu CR, Kirken RA, Malabarba MG, Young HA, Ortaldo JR. Differential regulation of the Janus kinase-STAT pathway and biologic function of IL-13 in primary human NK and T cells: a comparative study with IL-4. J Immunol. 1998 Jul 01; 161(1):218-27. PMID: 9647227.
      Citations: 7     Fields:    Translation:HumansCells
    68. Kirken RA, Evans GA, Duhé RJ, DaSilva L, Malabarba MG, Erwin RA, Farrar WL. Mechanisms of cytokine signal transduction: IL-2, IL-4 and prolactin as hematopoietin receptor models. Vet Immunol Immunopathol. 1998 May 15; 63(1-2):27-36. PMID: 9656438.
      Citations:    Fields:    Translation:HumansAnimalsCells
    69. Duhé RJ, Evans GA, Erwin RA, Kirken RA, Cox GW, Farrar WL. Nitric oxide and thiol redox regulation of Janus kinase activity. Proc Natl Acad Sci U S A. 1998 Jan 06; 95(1):126-31. PMID: 9419340.
      Citations: 33     Fields:    Translation:HumansAnimalsCells
    70. Pericle F, Pinto LA, Hicks S, Kirken RA, Sconocchia G, Rusnak J, Dolan MJ, Shearer GM, Segal DM. HIV-1 infection induces a selective reduction in STAT5 protein expression. J Immunol. 1998 Jan 01; 160(1):28-31. PMID: 9551952.
      Citations: 13     Fields:    Translation:HumansCells
    71. Pericle F, Kirken RA, Bronte V, Sconocchia G, DaSilva L, Segal DM. Immunocompromised tumor-bearing mice show a selective loss of STAT5a/b expression in T and B lymphocytes. J Immunol. 1997 Sep 15; 159(6):2580-5. PMID: 9300676.
      Citations: 5     Fields:    Translation:AnimalsCells
    72. Curiel RE, Lahesmaa R, Subleski J, Cippitelli M, Kirken RA, Young HA, Ghosh P. Identification of a Stat-6-responsive element in the promoter of the human interleukin-4 gene. Eur J Immunol. 1997 Aug; 27(8):1982-7. PMID: 9295035.
      Citations: 10     Fields:    Translation:HumansAnimalsCells
    73. Kirken RA, Malabarba MG, Xu J, DaSilva L, Erwin RA, Liu X, Hennighausen L, Rui H, Farrar WL. Two discrete regions of interleukin-2 (IL2) receptor beta independently mediate IL2 activation of a PD98059/rapamycin/wortmannin-insensitive Stat5a/b serine kinase. J Biol Chem. 1997 Jun 13; 272(24):15459-65. PMID: 9182578.
      Citations: 9     Fields:    Translation:HumansAnimalsCells
    74. Kirken RA, Malabarba MG, Xu J, Liu X, Farrar WL, Hennighausen L, Larner AC, Grimley PM, Rui H. Prolactin stimulates serine/tyrosine phosphorylation and formation of heterocomplexes of multiple Stat5 isoforms in Nb2 lymphocytes. J Biol Chem. 1997 May 30; 272(22):14098-103. PMID: 9162035.
      Citations: 13     Fields:    Translation:HumansCells
    75. Malabarba MG, Rui H, Deutsch HH, Chung J, Kalthoff FS, Farrar WL, Kirken RA. Interleukin-13 is a potent activator of JAK3 and STAT6 in cells expressing interleukin-2 receptor-gamma and interleukin-4 receptor-alpha. Biochem J. 1996 Nov 01; 319 ( Pt 3):865-72. PMID: 8920992.
      Citations: 12     Fields:    Translation:HumansAnimalsCells
    76. Pericle F, Kirken RA, Epling-Burnette PK, Blanchard DK, Djeu JY. Direct killing of interleukin-2-transfected tumor cells by human neutrophils. Int J Cancer. 1996 May 03; 66(3):367-73. PMID: 8621259.
      Citations: 6     Fields:    Translation:HumansAnimalsCells
    77. DaSilva L, Rui H, Erwin RA, Howard OM, Kirken RA, Malabarba MG, Hackett RH, Larner AC, Farrar WL. Prolactin recruits STAT1, STAT3 and STAT5 independent of conserved receptor tyrosines TYR402, TYR479, TYR515 and TYR580. Mol Cell Endocrinol. 1996 Mar 25; 117(2):131-40. PMID: 8737372.
      Citations: 33     Fields:    Translation:HumansAnimalsCells
    78. Kirken RA, Lincoln AJ, Fink PS, Prochaska LJ. High yield purification of a four subunit caa3-type cytochrome oxidase from the thermophilic bacterium Bacillus PS3 using fast protein liquid chromatography. Protein Expr Purif. 1995 Oct; 6(5):707-15. PMID: 8535166.
      Citations: 4     Fields:    Translation:Cells
    79. Kirken RA, Rui H, Malabarba MG, Howard OM, Kawamura M, O'Shea JJ, Farrar WL. Activation of JAK3, but not JAK1, is critical for IL-2-induced proliferation and STAT5 recruitment by a COOH-terminal region of the IL-2 receptor beta-chain. Cytokine. 1995 Oct; 7(7):689-700. PMID: 8580378.
      Citations: 17     Fields:    Translation:HumansAnimalsCells
    80. Erwin RA, Kirken RA, Malabarba MG, Farrar WL, Rui H. Prolactin activates Ras via signaling proteins SHC, growth factor receptor bound 2, and son of sevenless. Endocrinology. 1995 Aug; 136(8):3512-8. PMID: 7628388.
      Citations: 21     Fields:    Translation:HumansAnimalsCells
    81. Malabarba MG, Kirken RA, Rui H, Koettnitz K, Kawamura M, O'Shea JJ, Kalthoff FS, Farrar WL. Activation of JAK3, but not JAK1, is critical to interleukin-4 (IL4) stimulated proliferation and requires a membrane-proximal region of IL4 receptor alpha. J Biol Chem. 1995 Apr 21; 270(16):9630-7. PMID: 7721895.
      Citations: 12     Fields:    Translation:HumansAnimalsCells
    82. Howard OM, Kirken RA, Garcia GG, Hackett RH, Farrar WL. Structural domains of interleukin-2 receptor beta critical for signal transduction: kinase association and nuclear complex-formation. Biochem J. 1995 Feb 15; 306 ( Pt 1):217-24. PMID: 7532397.
      Citations: 6     Fields:    Translation:HumansAnimalsCells
    83. Rui H, Lebrun JJ, Kirken RA, Kelly PA, Farrar WL. JAK2 activation and cell proliferation induced by antibody-mediated prolactin receptor dimerization. Endocrinology. 1994 Oct; 135(4):1299-306. PMID: 7925093.
      Citations: 29     Fields:    Translation:AnimalsCells
    84. Kirken RA, Rui H, Malabarba MG, Farrar WL. Identification of interleukin-2 receptor-associated tyrosine kinase p116 as novel leukocyte-specific Janus kinase. J Biol Chem. 1994 Jul 22; 269(29):19136-41. PMID: 7518451.
      Citations: 11     Fields:    Translation:HumansAnimalsCells
    85. DaSilva L, Howard OM, Rui H, Kirken RA, Farrar WL. Growth signaling and JAK2 association mediated by membrane-proximal cytoplasmic regions of prolactin receptors. J Biol Chem. 1994 Jul 15; 269(28):18267-70. PMID: 8034567.
      Citations: 32     Fields:    Translation:HumansAnimalsCells
    86. Johnston JA, Kawamura M, Kirken RA, Chen YQ, Blake TB, Shibuya K, Ortaldo JR, McVicar DW, O'Shea JJ. Phosphorylation and activation of the Jak-3 Janus kinase in response to interleukin-2. Nature. 1994 Jul 14; 370(6485):151-3. PMID: 8022485.
      Citations: 133     Fields:    Translation:HumansCells
    87. Rui H, Kirken RA, Farrar WL. Activation of receptor-associated tyrosine kinase JAK2 by prolactin. J Biol Chem. 1994 Feb 18; 269(7):5364-8. PMID: 7508935.
      Citations: 73     Fields:    Translation:AnimalsCells
    88. Kirken RA, Rui H, Howard OM, Farrar WL. Involvement of JAK-family tyrosine kinases in hematopoietin receptor signal transduction. Prog Growth Factor Res. 1994; 5(2):195-211. PMID: 7919224.
      Citations: 5     Fields:    Translation:HumansAnimalsCells
    89. Kirken RA, Rui H, Evans GA, Farrar WL. Characterization of an interleukin-2 (IL-2)-induced tyrosine phosphorylated 116-kDa protein associated with the IL-2 receptor beta-subunit. J Biol Chem. 1993 Oct 25; 268(30):22765-70. PMID: 7693677.
      Citations: 3     Fields:    Translation:HumansCells
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