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Proteome Analysis Revealed Changes in Protein Expression Patterns Caused by Mutations in Ehrlichia chaffeensis.

Kondethimmanahalli C, Liu H, Ganta RR.

Front Cell Infect Microbiol. 2019 Mar 18;9:58. doi: 10.3389/fcimb.2019.00058. eCollection 2019.


Rickettsia rickettsii Whole-Cell Antigens Offer Protection against Rocky Mountain Spotted Fever in the Canine Host.

Alhassan A, Liu H, McGill J, Cerezo A, Jakkula LUMR, Nair ADS, Winkley E, Olson S, Marlow D, Sahni A, Narra HP, Sahni S, Henningson J, Ganta RR.

Infect Immun. 2019 Jan 24;87(2). pii: e00628-18. doi: 10.1128/IAI.00628-18. Print 2019 Feb.


Antigen-Specific CD4+CD8+ Double-Positive T Cells Are Increased in the Blood and Spleen During Ehrlichia chaffeensis Infection in the Canine Host.

McGill JL, Wang Y, Ganta CK, Boorgula GDY, Ganta RR.

Front Immunol. 2018 Jul 11;9:1585. doi: 10.3389/fimmu.2018.01585. eCollection 2018.


Genetic characterization of extraintestinal Escherichia coli isolates from chicken, cow and swine.

Chen L, Wang L, Yassin AK, Zhang J, Gong J, Qi K, Ganta RR, Zhang Y, Yang Y, Han X, Wang C.

AMB Express. 2018 Jul 17;8(1):117. doi: 10.1186/s13568-018-0646-8.


Protein and DNA synthesis demonstrated in cell-free Ehrlichia chaffeensis organisms in axenic medium.

Eedunuri VK, Zhang Y, Cheng C, Chen L, Liu H, Omsland A, Boyle D, Ganta RR.

Sci Rep. 2018 Jun 18;8(1):9293. doi: 10.1038/s41598-018-27574-z.


Effectiveness of Three Prognostic Scoring Systems in Predicting the Response and Outcome in Pediatric Chronic Myeloid Leukemia Chronic Phase on Frontline Imatinib.

Ganta RR, Nasaka S, Linga VG, Gundeti S, Maddali LS, Digumarti RR.

Indian J Med Paediatr Oncol. 2017 Jul-Sep;38(3):282-286. doi: 10.4103/ijmpo.ijmpo_104_16.


A genetic system for targeted mutations to disrupt and restore genes in the obligate bacterium, Ehrlichia chaffeensis.

Wang Y, Wei L, Liu H, Cheng C, Ganta RR.

Sci Rep. 2017 Nov 17;7(1):15801. doi: 10.1038/s41598-017-16023-y.


Engineering of obligate intracellular bacteria: progress, challenges and paradigms.

McClure EE, Chávez ASO, Shaw DK, Carlyon JA, Ganta RR, Noh SM, Wood DO, Bavoil PM, Brayton KA, Martinez JJ, McBride JW, Valdivia RH, Munderloh UG, Pedra JHF.

Nat Rev Microbiol. 2017 Sep;15(9):544-558. doi: 10.1038/nrmicro.2017.59. Epub 2017 Jun 19. Review.


Protein aggregation in Ehrlichia chaffeensis during infection of mammalian cells.

Kuczynska-Wisnik D, Cheng C, Ganta RR, Zolkiewski M.

FEMS Microbiol Lett. 2017 Mar 1;364(6). doi: 10.1093/femsle/fnx059.


Impact of treatment protocol on outcome of localized Ewing's sarcoma.

Nasaka S, Gundeti S, Ganta RR, Arigela RS, Linga VG, Maddali LS.

South Asian J Cancer. 2016 Oct-Dec;5(4):194-195. doi: 10.4103/2278-330X.195344.


Initial development and preliminary evaluation of a multiplex bead assay to detect antibodies to Ehrlichia canis, Anaplasma platys, and Ehrlichia chaffeensis outer membrane peptides in naturally infected dogs from Grenada, West Indies.

Wilkerson MJ, Black KE, Lanza-Perea M, Sharma B, Gibson K, Stone DM, George A, Nair AD, Ganta RR.

J Vet Diagn Invest. 2017 Jan;29(1):109-114. doi: 10.1177/1040638716671979. Epub 2016 Nov 16.


Amblyomma americanum ticks infected with in vitro cultured wild-type and mutants of Ehrlichia chaffeensis are competent to produce infection in naïve deer and dogs.

Jaworski DC, Cheng C, Nair ADS, Ganta RR.

Ticks Tick Borne Dis. 2017 Jan;8(1):60-64. doi: 10.1016/j.ttbdis.2016.09.017. Epub 2016 Sep 28.


Heterogeneous Associations of Ecological Attributes with Tick-Borne Rickettsial Pathogens in a Periurban Landscape.

Raghavan RK, Goodin DG, Dryden MW, Hroobi A, Gordon DM, Cheng C, Nair AD, Jakkula LU, Hanzlicek GA, Anderson GA, Ganta RR.

Vector Borne Zoonotic Dis. 2016 Sep;16(9):569-76. doi: 10.1089/vbz.2016.1975. Epub 2016 Jul 25.


Trends in management of acute lymphoblastic leukemia: Influence of insurance based healthcare and treatment compliance on the outcome of adolescents and adults with acute lymphoblastic leukemia.

Arigela RS, Gundeti S, Ganta RR, Nasaka S, Linga VG, Maddali LS.

Indian J Med Paediatr Oncol. 2016 Jan-Mar;37(1):32-7. doi: 10.4103/0971-5851.177013.


Bayesian Space-Time Patterns and Climatic Determinants of Bovine Anaplasmosis.

Hanzlicek GA, Raghavan RK, Ganta RR, Anderson GA.

PLoS One. 2016 Mar 22;11(3):e0151924. doi: 10.1371/journal.pone.0151924. eCollection 2016.


Hierarchical Bayesian Spatio-Temporal Analysis of Climatic and Socio-Economic Determinants of Rocky Mountain Spotted Fever.

Raghavan RK, Goodin DG, Neises D, Anderson GA, Ganta RR.

PLoS One. 2016 Mar 4;11(3):e0150180. doi: 10.1371/journal.pone.0150180. eCollection 2016.


Impact of Imatinib Adherence on the Cytogenetic Response in Pediatric Chronic Myeloid Leukemia - Chronic Phase.

Ganta RR, Nasaka S, Gundeti S.

Indian J Pediatr. 2016 Sep;83(9):1009-12. doi: 10.1007/s12098-015-2007-9. Epub 2016 Feb 3.


Vaccination with an Attenuated Mutant of Ehrlichia chaffeensis Induces Pathogen-Specific CD4+ T Cell Immunity and Protection from Tick-Transmitted Wild-Type Challenge in the Canine Host.

McGill JL, Nair AD, Cheng C, Rusk RA, Jaworski DC, Ganta RR.

PLoS One. 2016 Feb 3;11(2):e0148229. doi: 10.1371/journal.pone.0148229. eCollection 2016.


Comparative Experimental Infection Study in Dogs with Ehrlichia canis, E. chaffeensis, Anaplasma platys and A. phagocytophilum.

Nair AD, Cheng C, Ganta CK, Sanderson MW, Alleman AR, Munderloh UG, Ganta RR.

PLoS One. 2016 Feb 3;11(2):e0148239. doi: 10.1371/journal.pone.0148239. eCollection 2016.


Maximum Entropy-Based Ecological Niche Model and Bio-Climatic Determinants of Lone Star Tick (Amblyomma americanum) Niche.

Raghavan RK, Goodin DG, Hanzlicek GA, Zolnerowich G, Dryden MW, Anderson GA, Ganta RR.

Vector Borne Zoonotic Dis. 2016 Mar;16(3):205-11. doi: 10.1089/vbz.2015.1837. Epub 2016 Jan 29.


Mutations in Ehrlichia chaffeensis Causing Polar Effects in Gene Expression and Differential Host Specificities.

Cheng C, Nair AD, Jaworski DC, Ganta RR.

PLoS One. 2015 Jul 17;10(7):e0132657. doi: 10.1371/journal.pone.0132657. eCollection 2015.


Attenuated Mutants of Ehrlichia chaffeensis Induce Protection against Wild-Type Infection Challenge in the Reservoir Host and in an Incidental Host.

Nair AD, Cheng C, Jaworski DC, Ganta S, Sanderson MW, Ganta RR.

Infect Immun. 2015 Jul;83(7):2827-35. doi: 10.1128/IAI.00487-15. Epub 2015 Apr 27.


High prevalence of "Candidatus Rickettsia andeanae" and apparent exclusion of Rickettsia parkeri in adult Amblyomma maculatum (Acari: Ixodidae) from Kansas and Oklahoma.

Paddock CD, Denison AM, Dryden MW, Noden BH, Lash RR, Abdelghani SS, Evans AE, Kelly AR, Hecht JA, Karpathy SE, Ganta RR, Little SE.

Ticks Tick Borne Dis. 2015 Apr;6(3):297-302. doi: 10.1016/j.ttbdis.2015.02.001. Epub 2015 Mar 13.


Response to imatinib mesylate in childhood chronic myeloid leukemia in chronic phase.

Linga VG, Ganta RR, Kalpathi KI, Gundeti S, Rajappa SJ, Digumarti R, Paul TR, Tandon A.

South Asian J Cancer. 2014 Oct;3(4):203-5. doi: 10.4103/2278-330X.142961.


Ehrlichia chaffeensis infection in the reservoir host (white-tailed deer) and in an incidental host (dog) is impacted by its prior growth in macrophage and tick cell environments.

Nair AD, Cheng C, Jaworski DC, Willard LH, Sanderson MW, Ganta RR.

PLoS One. 2014 Oct 10;9(10):e109056. doi: 10.1371/journal.pone.0109056. eCollection 2014.


Bayesian spatio-temporal analysis and geospatial risk factors of human monocytic ehrlichiosis.

Raghavan RK, Neises D, Goodin DG, Andresen DA, Ganta RR.

PLoS One. 2014 Jul 3;9(7):e100850. doi: 10.1371/journal.pone.0100850. eCollection 2014.


Transcription of Ehrlichia chaffeensis genes is accomplished by RNA polymerase holoenzyme containing either sigma 32 or sigma 70.

Liu H, Von Ohlen T, Cheng C, Faburay B, Ganta RR.

PLoS One. 2013 Nov 21;8(11):e81780. doi: 10.1371/journal.pone.0081780. eCollection 2013.


Aggregate-reactivation activity of the molecular chaperone ClpB from Ehrlichia chaffeensis.

Zhang T, Kedzierska-Mieszkowska S, Liu H, Cheng C, Ganta RR, Zolkiewski M.

PLoS One. 2013 May 7;8(5):e62454. doi: 10.1371/journal.pone.0062454. Print 2013.


Targeted and random mutagenesis of Ehrlichia chaffeensis for the identification of genes required for in vivo infection.

Cheng C, Nair AD, Indukuri VV, Gong S, Felsheim RF, Jaworski D, Munderloh UG, Ganta RR.

PLoS Pathog. 2013 Feb;9(2):e1003171. doi: 10.1371/journal.ppat.1003171. Epub 2013 Feb 14. Erratum in: PLoS Pathog. 2013 May;9(5). doi: 10.1371/annotation/322c8bba-8dae-4196-b85d-5de315e44d76.


Identification of critical host mitochondrion-associated genes during Ehrlichia chaffeensis infections.

Von Ohlen T, Luce-Fedrow A, Ortega MT, Ganta RR, Chapes SK.

Infect Immun. 2012 Oct;80(10):3576-86. doi: 10.1128/IAI.00670-12. Epub 2012 Jul 30.


Transmission electron microscopy reveals distinct macrophage- and tick cell-specific morphological stages of Ehrlichia chaffeensis.

Dedonder SE, Cheng C, Willard LH, Boyle DL, Ganta RR.

PLoS One. 2012;7(5):e36749. doi: 10.1371/journal.pone.0036749. Epub 2012 May 15.


Isolation and characterization of Ehrlichia chaffeensis RNA polymerase and its use in evaluating p28 outer membrane protein gene promoters.

Faburay B, Liu H, Peddireddi L, Ganta RR.

BMC Microbiol. 2011 Apr 22;11:83. doi: 10.1186/1471-2180-11-83.


Comparison of iatrogenic transmission of Anaplasma marginale in Holstein steers via needle and needle-free injection techniques.

Reinbold JB, Coetzee JF, Hollis LC, Nickell JS, Riegel CM, Christopher JA, Ganta RR.

Am J Vet Res. 2010 Oct;71(10):1178-88. doi: 10.2460/ajvr.71.10.1178.


Detection of Anaplasma marginale and A. phagocytophilum in bovine peripheral blood samples by duplex real-time reverse transcriptase PCR assay.

Reinbold JB, Coetzee JF, Sirigireddy KR, Ganta RR.

J Clin Microbiol. 2010 Jul;48(7):2424-32. doi: 10.1128/JCM.02405-09. Epub 2010 May 12. Erratum in: J Clin Microbiol. 2012 Aug;50(8):2841.


The efficacy of three chlortetracycline regimens in the treatment of persistent Anaplasma marginale infection.

Reinbold JB, Coetzee JF, Hollis LC, Nickell JS, Riegel C, Olson KC, Ganta RR.

Vet Microbiol. 2010 Sep 28;145(1-2):69-75. doi: 10.1016/j.vetmic.2010.02.031. Epub 2010 Mar 3.


Promoter analysis of macrophage- and tick cell-specific differentially expressed Ehrlichia chaffeensis p28-Omp genes.

Peddireddi L, Cheng C, Ganta RR.

BMC Microbiol. 2009 May 19;9:99. doi: 10.1186/1471-2180-9-99.


Molecular characterization of Ehrlichia interactions with tick cells and macrophages.

Ganta RR, Peddireddi L, Seo GM, Dedonder SE, Cheng C, Chapes SK.

Front Biosci (Landmark Ed). 2009 Jan 1;14:3259-73. Review.


Defining the immune response to Ehrlichia species using murine models.

Chapes SK, Ganta RR.

Vet Parasitol. 2008 Dec 20;158(4):344-59. doi: 10.1016/j.vetpar.2008.09.028. Epub 2008 Oct 17.


Isolation and molecular detection of Ehrlichia from vertebrate animals.

Cheng C, Sirigireddy KR, Ganta RR.

Curr Protoc Microbiol. 2008 May;Chapter 3:Unit 3A.3. doi: 10.1002/9780471729259.mc03a03s9.


Laboratory maintenance of Ehrlichia chaffeensis and Ehrlichia canis and recovery of organisms for molecular biology and proteomics studies.

Cheng C, Ganta RR.

Curr Protoc Microbiol. 2008 May;Chapter 3:Unit 3A.1. doi: 10.1002/9780471729259.mc03a01s9.


Use of Drosophila S2 cells as a model for studying Ehrlichia chaffeensis infections.

Luce-Fedrow A, Von Ohlen T, Boyle D, Ganta RR, Chapes SK.

Appl Environ Microbiol. 2008 Mar;74(6):1886-91. doi: 10.1128/AEM.02467-07. Epub 2008 Feb 1.


FSH stimulates ovarian cancer cell growth by action on growth factor variant receptor.

Li Y, Ganta S, Cheng C, Craig R, Ganta RR, Freeman LC.

Mol Cell Endocrinol. 2007 Mar 15;267(1-2):26-37. Epub 2007 Jan 16.


High prevalence of West Nile virus: a continuing risk in acquiring infection from a mosquito bite.

Sirigireddy KR, Kennedy GA, Broce A, Zurek L, Ganta RR.

Vector Borne Zoonotic Dis. 2006 Winter;6(4):351-60.


Multiplex detection of Ehrlichia and Anaplasma pathogens in vertebrate and tick hosts by real-time RT-PCR.

Sirigireddy KR, Mock DC, Ganta RR.

Ann N Y Acad Sci. 2006 Oct;1078:552-6.


Differential clearance and immune responses to tick cell-derived versus macrophage culture-derived Ehrlichia chaffeensis in mice.

Ganta RR, Cheng C, Miller EC, McGuire BL, Peddireddi L, Sirigireddy KR, Chapes SK.

Infect Immun. 2007 Jan;75(1):135-45. Epub 2006 Oct 23.


Electrostatically driven protein aggregation: beta-lactoglobulin at low ionic strength.

Majhi PR, Ganta RR, Vanam RP, Seyrek E, Giger K, Dubin PL.

Langmuir. 2006 Oct 24;22(22):9150-9.


Unique macrophage and tick cell-specific protein expression from the p28/p30-outer membrane protein multigene locus in Ehrlichia chaffeensis and Ehrlichia canis.

Singu V, Peddireddi L, Sirigireddy KR, Cheng C, Munderloh U, Ganta RR.

Cell Microbiol. 2006 Sep;8(9):1475-87.


Hypothermia-enhanced splenic cytokine gene expression is independent of the sympathetic nervous system.

Ganta CK, Helwig BG, Blecha F, Ganta RR, Cober R, Parimi S, Musch TI, Fels RJ, Kenney MJ.

Am J Physiol Regul Integr Comp Physiol. 2006 Sep;291(3):R558-65.

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