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Samdavid Thanapaul RJR, Alamneh YA, Finnegan DK, Antonic V, Abu-Taleb R, Czintos C, Boone D, Su W, Sajja VS, Getnet D, Roberds A, Walsh TJ, Bobrov AG. Development of a Combat-Relevant Murine Model of Wound Mucormycosis: A Platform for the Pre-Clinical Investigation of Novel Therapeutics for Wound-Invasive Fungal Diseases. J Fungi (Basel) 2024; 10:364. [PMID: 38786719 DOI: 10.3390/jof10050364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/14/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
Wound-invasive fungal diseases (WIFDs), especially mucormycosis, have emerged as life-threatening infections during recent military combat operations. Many combat-relevant fungal pathogens are refractory to current antifungal therapy. Therefore, animal models of WIFDs are urgently needed to investigate new therapeutic solutions. Our study establishes combat-relevant murine models of wound mucormycosis using Rhizopus arrhizus and Lichtheimia corymbifera, two Mucorales species that cause wound mucormycosis worldwide. These models recapitulate the characteristics of combat-related wounds from explosions, including blast overpressure exposure, full-thickness skin injury, fascial damage, and muscle crush. The independent inoculation of both pathogens caused sustained infections and enlarged wounds. Histopathological analysis confirmed the presence of necrosis and fungal hyphae in the wound bed and adjacent muscle tissue. Semi-quantification of fungal burden by colony-forming units corroborated the infection. Treatment with liposomal amphotericin B, 30 mg/kg, effectively controlled R. arrhizus growth and significantly reduced residual fungal burden in infected wounds (p < 0.001). This study establishes the first combat-relevant murine model of wound mucormycosis, paving the way for developing and evaluating novel antifungal therapies against combat-associated WIFDs.
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Affiliation(s)
- Rex J R Samdavid Thanapaul
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
- NRC Research Associateship Programs, National Academies of Sciences, Engineering, and Medicine, Washington, DC 20001, USA
| | - Yonas A Alamneh
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Daniel K Finnegan
- Veterinary Services Program, Pathology Department, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Vlado Antonic
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Rania Abu-Taleb
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Christine Czintos
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Dylan Boone
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Wanwen Su
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Venkatasivasai S Sajja
- Blast Induced Neurotrauma Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Derese Getnet
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Ashleigh Roberds
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Thomas J Walsh
- Departments of Medicine and Microbiology & Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Center for Innovative Therapeutics and Diagnostics, Richmond, VA 23220, USA
| | - Alexander G Bobrov
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
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Rios KE, Selig DJ, Pavlovic R, Alamneh Y, Vuong C, Nadeau RJ, Pannone KM, Deluca JP, Long JB, Sajja VS, Tyner S, Antonic V, Getnet D, Bobrov AG. Impact of Blast Overpressure on the Pharmacokinetics of Various Antibiotics in Sprague Dawley Rats. Mil Med 2023; 188:271-279. [PMID: 37948226 DOI: 10.1093/milmed/usad107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/03/2023] [Accepted: 04/07/2023] [Indexed: 11/12/2023] Open
Abstract
INTRODUCTION Combat injuries are complex and multimodal. Most injuries to the extremities occur because of explosive devices such as improvised explosive devices. Blast exposure dramatically increases the risk of infection in combat wounds, and there is limited available information on the best antibiotic treatments for these injuries. We previously demonstrated that mice exposed to blast displayed a delayed clearance of cefazolin from the plasma and liver; further semi-mechanistic modeling determined that cefazolin concentrations in the skin of these mice were reduced. Our objective was to investigate the effects of blast on the pharmacokinetics of antibiotics of different types used for the treatment of combat wounds in the rat model. MATERIALS AND METHODS Male Sprague Dawley rats were exposed to blast overpressure followed by injection of a bolus of animal equivalent doses of an antibiotic (cefazolin, cefepime, ertapenem, or clindamycin) into the tail vein at 1-hour post-blast exposure. Blood was collected at predetermined time points via repeated sampling from the tail vein. Animals were also euthanized at predetermined time points, at which time liver, kidney, skin, and blood via cardiac puncture were collected. Antibiotic concentrations were determined by ultra-performance liquid chromatography-tandem mass spectrometry. RESULTS Blast-exposed rats exhibited a similar rate of clearance compared to non-blasted rats in the blood, liver, kidney, and skin, which is inconsistent with the data regarding cefazolin in blast-exposed mice. CONCLUSIONS Our results in rats do not recapitulate our previous observation of delayed cefazolin clearance in mice following the blast overpressure exposure. Although using rats permitted us to collect multiple blood samples from the same animals, rats may not be a suitable model for measuring the pharmacokinetics of antibiotics following blast. The interpretation of the results may be challenging because of variation in data among rat subjects in the same sample groups.
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Affiliation(s)
- Kariana E Rios
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830, USA
| | - Daniel J Selig
- Experimental Therapeutics Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Radmila Pavlovic
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830, USA
| | - Yonas Alamneh
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Chau Vuong
- Experimental Therapeutics Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Robert John Nadeau
- Experimental Therapeutics Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Kristina M Pannone
- Experimental Therapeutics Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Jesse P Deluca
- Experimental Therapeutics Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Joseph B Long
- Blast Induced Neurotrauma Branch, Center for Military Psychiatry and Neurosciences, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Venkatasivasai S Sajja
- Blast Induced Neurotrauma Branch, Center for Military Psychiatry and Neurosciences, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Stuart Tyner
- Military Infectious Diseases Research Program, Frederick, MD 21702, USA
| | - Vlado Antonic
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Derese Getnet
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Alexander G Bobrov
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
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Alamneh YA, Antonic V, Garry B, Pucci MJ, Abu-Taleb R, Shearer JP, Demons ST, Getnet D, Swierczewski BE, Lister T, Zurawski DV. Minocycline and the SPR741 Adjuvant Are an Efficacious Antibacterial Combination for Acinetobacter baumannii Infections. Antibiotics (Basel) 2022; 11:antibiotics11091251. [PMID: 36140032 PMCID: PMC9495173 DOI: 10.3390/antibiotics11091251] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/01/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Antibiotic resistance, when it comes to bacterial infections, is not a problem that is going to disappear anytime soon. With the lack of larger investment in novel antibiotic research and the ever-growing increase of resistant isolates amongst the ESKAPEE pathogens (Enterobacter cloacae, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, Enterococcus sp., and Escherichia coli), it is inevitable that more and more infections caused by extensively drug-resistant (XDR) and pandrug-resistant (PDR) strains will arise. One strategy to counteract the growing threat is to use antibiotic adjuvants, a drug class that on its own lacks significant antibiotic activity, but when mixed with another antibiotic, can potentiate increased killing of bacteria. Antibiotic adjuvants have various mechanisms of action, but polymyxins and polymyxin-like molecules can disrupt the Gram-negative outer membrane and allow other drugs better penetration into the bacterial periplasm and cytoplasm. Previously, we showed that SPR741 had this adjuvant effect with regard to rifampin; however, rifampin is often not used clinically because of easily acquired resistance. To find additional, appropriate clinical partners for SPR741 with respect to pulmonary and wound infections, we investigated tetracyclines and found a previously undocumented synergy with minocycline in vitro and in vivo in murine models of infection.
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Affiliation(s)
- Yonas A. Alamneh
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Vlado Antonic
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Brittany Garry
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | | | - Rania Abu-Taleb
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Jonathan P. Shearer
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Samandra T. Demons
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Derese Getnet
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Brett E. Swierczewski
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Troy Lister
- Spero Therapeutics, Inc., Cambridge, MA 02139, USA
| | - Daniel V. Zurawski
- Wound Infections Department, Bacterial Diseases Branch, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
- Correspondence: ; Tel.: +1-301-319-3110; Fax: +1-301-319-9801
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Mencke JL, He Y, Filippov AA, Nikolich MP, Belew AT, Fouts DE, McGann PT, Swierczewski BE, Getnet D, Ellison DW, Margulieux KR. Identification and Characterization of vB_PreP_EPr2, a Lytic Bacteriophage of Pan-Drug Resistant Providencia rettgeri. Viruses 2022; 14:v14040708. [PMID: 35458437 PMCID: PMC9026810 DOI: 10.3390/v14040708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/14/2022] [Accepted: 03/23/2022] [Indexed: 12/04/2022] Open
Abstract
Providencia rettgeri is an emerging opportunistic Gram-negative pathogen with reports of increasing antibiotic resistance. Pan-drug resistant (PDR) P. rettgeri infections are a growing concern, demonstrating a need for the development of alternative treatment options which is fueling a renewed interest in bacteriophage (phage) therapy. Here, we identify and characterize phage vB_PreP_EPr2 (EPr2) with lytic activity against PDR P. rettgeri MRSN 845308, a clinical isolate that carries multiple antibiotic resistance genes. EPr2 was isolated from an environmental water sample and belongs to the family Autographiviridae, subfamily Studiervirinae and genus Kayfunavirus, with a genome size of 41,261 base pairs. Additional phenotypic characterization showed an optimal MOI of 1 and a burst size of 12.3 ± 3.4 PFU per bacterium. EPr2 was determined to have a narrow host range against a panel of clinical P. rettgeri strains. Despite this fact, EPr2 is a promising lytic phage with potential for use as an alternative therapeutic for treatment of PDR P. rettgeri infections.
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Affiliation(s)
- Jaime L. Mencke
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA; (J.L.M.); (Y.H.); (A.A.F.); (M.P.N.); (A.T.B.); (D.G.)
- F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Yunxiu He
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA; (J.L.M.); (Y.H.); (A.A.F.); (M.P.N.); (A.T.B.); (D.G.)
| | - Andrey A. Filippov
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA; (J.L.M.); (Y.H.); (A.A.F.); (M.P.N.); (A.T.B.); (D.G.)
| | - Mikeljon P. Nikolich
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA; (J.L.M.); (Y.H.); (A.A.F.); (M.P.N.); (A.T.B.); (D.G.)
| | - Ashton T. Belew
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA; (J.L.M.); (Y.H.); (A.A.F.); (M.P.N.); (A.T.B.); (D.G.)
| | | | - Patrick T. McGann
- Multidrug-Resistant Organism Repository and Surveillance Network (MRSN), Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA;
| | - Brett E. Swierczewski
- Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA;
| | - Derese Getnet
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA; (J.L.M.); (Y.H.); (A.A.F.); (M.P.N.); (A.T.B.); (D.G.)
| | - Damon W. Ellison
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA; (J.L.M.); (Y.H.); (A.A.F.); (M.P.N.); (A.T.B.); (D.G.)
- Correspondence: (D.W.E.); (K.R.M.)
| | - Katie R. Margulieux
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA; (J.L.M.); (Y.H.); (A.A.F.); (M.P.N.); (A.T.B.); (D.G.)
- Correspondence: (D.W.E.); (K.R.M.)
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Bergmann-Leitner ES, Bobrov AG, Bolton JS, Rouse MD, Heyburn L, Pavlovic R, Garry BI, Alamneh Y, Long J, Swierczewski B, Tyner S, Getnet D, Sajja VS, Antonic V. Blast Waves Cause Immune System Dysfunction and Transient Bone Marrow Failure in a Mouse Model. Front Bioeng Biotechnol 2022; 10:821169. [PMID: 35392409 PMCID: PMC8980552 DOI: 10.3389/fbioe.2022.821169] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/23/2022] [Indexed: 11/29/2022] Open
Abstract
Explosive devices, either conventional or improvised, are common sources of injuries during combat, civil unrest, and terror attacks, resulting in trauma from exposure to blast. A blast wave (BW), a near-instantaneous rise in pressure followed by a negative pressure, propagates through the body in milliseconds and can affect physiology for days/months after exposure. Epidemiological data show that blast-related casualties result in significantly higher susceptibility to wound infections, suggesting long-lasting immune modulatory effects from blast exposure. The mechanisms involved in BW-induced immune changes are poorly understood. We evaluated the effects of BW on the immune system using an established murine model. Animals were exposed to BWs (using an Advanced Blast Simulator), followed by longitudinally sampling for 14 days. Blood, bone marrow, and spleen were analyzed for changes in the 1) complete blood count (CBC), and 2) composition of bone marrow cells (BMC) and splenocytes, and 3) concentrations of systemic cytokines/chemokines. Our data demonstrate that BW results in transient bone marrow failure and long-term changes in the frequency and profile of progenitor cell populations. Viability progressively decreased in hematopoietic stem cells and pluripotent progenitor cells. Significant decrease of CD4+ T cells in the spleen indicates reduced functionality of adaptive immune system. Dynamic changes in the concentrations of several cytokines and chemokines such as IL-1α and IL-17 occurred potentially contributing to dysregulation of immune response after trauma. This work lays the foundation for identifying the potential mechanisms behind BW’s immunosuppressive effects to inform the recognition of this compromised status is crucial for the development of therapeutic interventions for infections to reduce recovery time of wounded patients injured by explosive devices.
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Affiliation(s)
- Elke S. Bergmann-Leitner
- Biologics Research and Development, Walter Reed Army Institute of Research, Silver Spring, MD, United States
- *Correspondence: Elke S. Bergmann-Leitner, ; Venkatasivasai S. Sajja, ; Vlado Antonic,
| | - Alexander G. Bobrov
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Jessica S. Bolton
- Biologics Research and Development, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Michael D. Rouse
- Wound Infections Department, Naval Research Medical Center, Silver Spring, MD, United States
- Henry M. Jackson Foundation, Rockville, MD, United States
| | - Lanier Heyburn
- Blast Induced Neurotrauma Branch, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Radmila Pavlovic
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Brittany I. Garry
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Yonas Alamneh
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Joseph Long
- Blast Induced Neurotrauma Branch, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Brett Swierczewski
- Bacterial Disease Branch, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Stuart Tyner
- Military Infectious Diseases Research Program, Frederick, MD, United States
| | - Derese Getnet
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Venkatasivasai S. Sajja
- Blast Induced Neurotrauma Branch, Walter Reed Army Institute of Research, Silver Spring, MD, United States
- *Correspondence: Elke S. Bergmann-Leitner, ; Venkatasivasai S. Sajja, ; Vlado Antonic,
| | - Vlado Antonic
- Wound Infections Department, Walter Reed Army Institute of Research, Silver Spring, MD, United States
- *Correspondence: Elke S. Bergmann-Leitner, ; Venkatasivasai S. Sajja, ; Vlado Antonic,
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Selig DJ, Chin GC, Bobrov AG, DeLuca JP, Getnet D, Livezey JR, Long JB, Sajja VS, Swierczewski BE, Tyner SD, Antonic V. Semimechanistic Modeling of the Effects of Blast Overpressure Exposure on Cefazolin Pharmacokinetics in Mice. J Pharmacol Exp Ther 2021; 379:175-181. [PMID: 34433578 DOI: 10.1124/jpet.121.000797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/23/2021] [Indexed: 11/22/2022] Open
Abstract
Cefazolin is a first-line antibiotic to treat infection related to deployment-associated blast injuries. Prior literature demonstrated a 331% increase cefazolin liver area under the curve (AUC) in mice exposed to a survivable blast compared with controls. We repeated the experiment, validated the findings, and established a semimechanistic two-compartment pharmacokinetic (PK) model with effect compartments representing the liver and skin. We found that blast statistically significantly increased the pseudo-partition coefficient to the liver by 326% (95% confidence interval: 76-737%), which corresponds to the observed 331% increase in cefazolin liver AUC described previously. To a lesser extent, plasma AUC in blasted mice increased 14-45% compared with controls. Nevertheless, the effects of blast on cefazolin PK were transient, normalizing by 10 hours after the dose. It is unclear as to how this blast effect t emporally translates to humans; however, given the short-lived effect on PK, there is insufficient evidence to recommend cefazolin dosing changes based on blast overpressure injury alone. Clinicians should be aware that cefazolin may cause drug-induced liver injury with a single dose and the risk may be higher in patients with blast overpressure injury based on our findings. SIGNIFICANCE STATEMENT: Blast exposure significantly, but transiently, alters cefazolin pharmacokinetics in mice. The questions of whether other medications or potential long-term consequences in humans need further exploration.
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Affiliation(s)
- Daniel J Selig
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Geoffrey C Chin
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Alexander G Bobrov
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Jesse P DeLuca
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Derese Getnet
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Jeffrey R Livezey
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Joseph B Long
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Venkatasivasai S Sajja
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Brett E Swierczewski
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Stuart D Tyner
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
| | - Vlado Antonic
- Walter Reed Army Institute of Research, Silver Spring, Maryland, USA (D.J.S., G.C.C., A.G.B., J.P.D., D.G., J.B.L., V.S.S., B.E.S., S.D.T., V.A.); Uniformed Services University, Bethesda, Maryland, USA (J.R.L.)
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7
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Bobrov AG, Getnet D, Swierczewski B, Jacobs A, Medina-Rojas M, Tyner S, Watters C, Antonic V. Evaluation of Pseudomonas aeruginosa pathogenesis and therapeutics in military-relevant animal infection models. APMIS 2021; 130:436-457. [PMID: 34132418 DOI: 10.1111/apm.13119] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 09/25/2020] [Accepted: 01/21/2021] [Indexed: 01/02/2023]
Abstract
Modern combat-related injuries are often associated with acute polytrauma. As a consequence of severe combat-related injuries, a dysregulated immune response results in serious infectious complications. The gram-negative bacterium Pseudomonas aeruginosa is an opportunistic pathogen that often causes life-threatening bloodstream, lung, bone, urinary tract, and wound infections following combat-related injuries. The rise in the number of multidrug-resistant P. aeruginosa strains has elevated its importance to civilian clinicians and military medicine. Development of novel therapeutics and treatment options for P. aeruginosa infections is urgently needed. During the process of drug discovery and therapeutic testing, in vivo testing in animal models is a critical step in the bench-to-bedside approach, and required for Food and Drug Administration approval. Here, we review current and past literature with a focus on combat injury-relevant animal models often used to understand infection development, the interplay between P. aeruginosa and the host, and evaluation of novel treatments. Specifically, this review focuses on the following animal infection models: wound, burn, bone, lung, urinary tract, foreign body, and sepsis.
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Affiliation(s)
- Alexander G Bobrov
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Derese Getnet
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Brett Swierczewski
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Anna Jacobs
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Maria Medina-Rojas
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Stuart Tyner
- US Army Medical Research and Development Command Military Infectious Diseases Research Program, Frederick, Maryland, USA
| | - Chase Watters
- Naval Medical Research Unit-3, Ghana Detachment, Accra, Ghana
| | - Vlado Antonic
- Wound Infections Department, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
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8
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Gautam A, Naidu L, Getnet D, Kumar R, Dimitrov G, Sowe B, Rossetti F, Meyerhoff JL, Hammamieh R, Lumley LA, Jett M. mRNA and miRNA Expression Analysis in Multiple Brain Regions Following Soman Exposure in Rats. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.641.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aarti Gautam
- US Army Center For Environmental Health ResearchFrederickMD
| | - Lalith Naidu
- US Army Center For Environmental Health ResearchFrederickMD
- OakRidge Institute for Science and EducationFrederickMD
| | - Derese Getnet
- US Army Center For Environmental Health ResearchFrederickMD
| | - Raina Kumar
- US Army Center For Environmental Health ResearchFrederickMD
- Advanced Biomedical Computational ScienceFrederick National Lab for Cancer ResearchFrederickMD
| | - George Dimitrov
- US Army Center For Environmental Health ResearchFrederickMD
- Advanced Biomedical Computational ScienceFrederick National Lab for Cancer ResearchFrederickMD
| | - Bintu Sowe
- US Army Center For Environmental Health ResearchFrederickMD
- OakRidge Institute for Science and EducationFrederickMD
| | | | - James L Meyerhoff
- US Army Center For Environmental Health ResearchFrederickMD
- The Geneva FoundationFrederickMD
| | | | - Lucille A Lumley
- US Army Medical Research Institute of Chemical DefenseAberdeen Proving GroundMD
| | - Marti Jett
- US Army Center For Environmental Health ResearchFrederickMD
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9
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Williams JR, Yang R, Clifford JL, Watson D, Campbell R, Getnet D, Kumar R, Hammamieh R, Jett M. Functional Heatmap: an automated and interactive pattern recognition tool to integrate time with multi-omics assays. BMC Bioinformatics 2019; 20:81. [PMID: 30770734 PMCID: PMC6377781 DOI: 10.1186/s12859-019-2657-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 01/28/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Life science research is moving quickly towards large-scale experimental designs that are comprised of multiple tissues, time points, and samples. Omic time-series experiments offer answers to three big questions: what collective patterns do most analytes follow, which analytes follow an identical pattern or synchronize across multiple cohorts, and how do biological functions evolve over time. Existing tools fall short of robustly answering and visualizing all three questions in a unified interface. RESULTS Functional Heatmap offers time-series data visualization through a Master Panel page, and Combined page to answer each of the three time-series questions. It dissects the complex multi-omics time-series readouts into patterned clusters with associated biological functions. It allows users to identify a cascade of functional changes over a time variable. Inversely, Functional Heatmap can compare a pattern with specific biology respond to multiple experimental conditions. All analyses are interactive, searchable, and exportable in a form of heatmap, line-chart, or text, and the results are easy to share, maintain, and reproduce on the web platform. CONCLUSIONS Functional Heatmap is an automated and interactive tool that enables pattern recognition in time-series multi-omics assays. It significantly reduces the manual labour of pattern discovery and comparison by transferring statistical models into visual clues. The new pattern recognition feature will help researchers identify hidden trends driven by functional changes using multi-tissues/conditions on a time-series fashion from omic assays.
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Affiliation(s)
- Joshua R Williams
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD, 21702-5010, USA.,Integrative Systems Biology Program, US Army Center for Environmental Health Research, Fort Detrick, Frederick, MD, 21702-5010, USA
| | - Ruoting Yang
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD, 21702-5010, USA.,Integrative Systems Biology Program, US Army Center for Environmental Health Research, Fort Detrick, Frederick, MD, 21702-5010, USA
| | - John L Clifford
- Integrative Systems Biology Program, US Army Center for Environmental Health Research, Fort Detrick, Frederick, MD, 21702-5010, USA
| | - Daniel Watson
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD, 21702-5010, USA
| | - Ross Campbell
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD, 21702-5010, USA.,Integrative Systems Biology Program, US Army Center for Environmental Health Research, Fort Detrick, Frederick, MD, 21702-5010, USA
| | - Derese Getnet
- Integrative Systems Biology Program, US Army Center for Environmental Health Research, Fort Detrick, Frederick, MD, 21702-5010, USA
| | - Raina Kumar
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD, 21702-5010, USA.,Integrative Systems Biology Program, US Army Center for Environmental Health Research, Fort Detrick, Frederick, MD, 21702-5010, USA
| | - Rasha Hammamieh
- Integrative Systems Biology Program, US Army Center for Environmental Health Research, Fort Detrick, Frederick, MD, 21702-5010, USA
| | - Marti Jett
- Integrative Systems Biology Program, US Army Center for Environmental Health Research, Fort Detrick, Frederick, MD, 21702-5010, USA.
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10
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Mitchell CJ, Getnet D, Kim MS, Manda SS, Kumar P, Huang TC, Pinto SM, Nirujogi RS, Iwasaki M, Shaw PG, Wu X, Zhong J, Chaerkady R, Marimuthu A, Muthusamy B, Sahasrabuddhe NA, Raju R, Bowman C, Danilova L, Cutler J, Kelkar DS, Drake CG, Prasad TSK, Marchionni L, Murakami PN, Scott AF, Shi L, Thierry-Mieg J, Thierry-Mieg D, Irizarry R, Cope L, Ishihama Y, Wang C, Gowda H, Pandey A. A multi-omic analysis of human naïve CD4+ T cells. BMC Syst Biol 2015; 9:75. [PMID: 26542228 PMCID: PMC4636073 DOI: 10.1186/s12918-015-0225-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 10/28/2015] [Indexed: 12/21/2022]
Abstract
Background Cellular function and diversity are orchestrated by complex interactions of fundamental biomolecules including DNA, RNA and proteins. Technological advances in genomics, epigenomics, transcriptomics and proteomics have enabled massively parallel and unbiased measurements. Such high-throughput technologies have been extensively used to carry out broad, unbiased studies, particularly in the context of human diseases. Nevertheless, a unified analysis of the genome, epigenome, transcriptome and proteome of a single human cell type to obtain a coherent view of the complex interplay between various biomolecules has not yet been undertaken. Here, we report the first multi-omic analysis of human primary naïve CD4+ T cells isolated from a single individual. Results Integrating multi-omics datasets allowed us to investigate genome-wide methylation and its effect on mRNA/protein expression patterns, extent of RNA editing under normal physiological conditions and allele specific expression in naïve CD4+ T cells. In addition, we carried out a multi-omic comparative analysis of naïve with primary resting memory CD4+ T cells to identify molecular changes underlying T cell differentiation. This analysis provided mechanistic insights into how several molecules involved in T cell receptor signaling are regulated at the DNA, RNA and protein levels. Phosphoproteomics revealed downstream signaling events that regulate these two cellular states. Availability of multi-omics data from an identical genetic background also allowed us to employ novel proteogenomics approaches to identify individual-specific variants and putative novel protein coding regions in the human genome. Conclusions We utilized multiple high-throughput technologies to derive a comprehensive profile of two primary human cell types, naïve CD4+ T cells and memory CD4+ T cells, from a single donor. Through vertical as well as horizontal integration of whole genome sequencing, methylation arrays, RNA-Seq, miRNA-Seq, proteomics, and phosphoproteomics, we derived an integrated and comparative map of these two closely related immune cells and identified potential molecular effectors of immune cell differentiation following antigen encounter. Electronic supplementary material The online version of this article (doi:10.1186/s12918-015-0225-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christopher J Mitchell
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Derese Getnet
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Min-Sik Kim
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Srikanth S Manda
- Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India.
| | - Praveen Kumar
- Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India.
| | - Tai-Chung Huang
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Sneha M Pinto
- Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India.
| | - Raja Sekhar Nirujogi
- Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India.
| | - Mio Iwasaki
- Department of Molecular & Cellular BioAnalysis, Kyoto University, Kyoto, Japan.
| | - Patrick G Shaw
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Xinyan Wu
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Jun Zhong
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Raghothama Chaerkady
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Arivusudar Marimuthu
- Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India.
| | | | | | - Rajesh Raju
- Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India.
| | - Caitlyn Bowman
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Ludmila Danilova
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Jevon Cutler
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Dhanashree S Kelkar
- Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India.
| | - Charles G Drake
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - T S Keshava Prasad
- Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India.
| | - Luigi Marchionni
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Peter N Murakami
- Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
| | - Alan F Scott
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Leming Shi
- National Center for Toxicological Research, Food and Drug Administration, Jefferson, AR, USA.
| | - Jean Thierry-Mieg
- National Center for Biotechnology Information, National Institutes of Health, Bethesda, MD, USA.
| | - Danielle Thierry-Mieg
- National Center for Biotechnology Information, National Institutes of Health, Bethesda, MD, USA.
| | - Rafael Irizarry
- Department of Biostatistics and Computational Biology, Dana Farber Cancer Institute, Boston, MA, USA.
| | - Leslie Cope
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Yasushi Ishihama
- Department of Molecular & Cellular BioAnalysis, Kyoto University, Kyoto, Japan.
| | - Charles Wang
- Center for Genomics and Division of Microbiology & Molecular Genetics, Loma Linda University, Loma Linda, CA, USA.
| | - Harsha Gowda
- Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India.
| | - Akhilesh Pandey
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Institute of Bioinformatics, International Tech Park, Whitefield, Bangalore, India. .,Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Department of Pathology and Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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11
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Sharma J, Balakrishnan L, Datta KK, Sahasrabuddhe NA, Khan AA, Sahu A, Singhal A, Getnet D, Raju R, Chatterjee A, Gowda H, Keshava Prasad TS, Shankar S, Pandey A. A knowledgebase resource for interleukin-17 family mediated signaling. J Cell Commun Signal 2015; 9:291-6. [PMID: 26077014 DOI: 10.1007/s12079-015-0297-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 05/26/2015] [Indexed: 01/13/2023] Open
Abstract
Interleukin-17 (IL-17) belongs to a relatively new family of cytokines that has garnered attention as the signature cytokine of Th17 cells. This cytokine family consists of 6 ligands, which bind to 5 receptor subtypes and induce downstream signaling. Although the receptors are ubiquitously expressed, cellular responses to ligands vary across tissues. The cytokine family is associated with various autoimmune disorders including rheumatoid arthritis, multiple sclerosis, inflammatory bowel disease, asthma and psoriasis in addition to being implicated in the pathogenesis of cancer. In addition, this family plays a role in host defense against bacterial and fungal infections. The signaling mechanisms of the IL-17 family of proinflammatory cytokines are not well explored. In this study, we present a resource of literature-annotated reactions induced by IL-17. The reactions are catalogued under 5 categories, namely; molecular association, catalysis, transport, activation/inhibition and gene regulation. A total of 93 molecules and 122 reactions have been annotated. The IL-17 pathway is freely available through NetPath, a resource of signal transduction pathways previously developed by our group.
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Affiliation(s)
- Jyoti Sharma
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India. .,Manipal University, Madhav Nagar, Manipal, 576104, India.
| | - Lavanya Balakrishnan
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India.
| | - Keshava K Datta
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India. .,School of Biotechnology, KIIT University, Bhubaneswar, 751024, India.
| | | | - Aafaque Ahmad Khan
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India. .,School of Biotechnology, KIIT University, Bhubaneswar, 751024, India.
| | - Apeksha Sahu
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India. .,Bioinformatics Centre, School of Life Sciences, Pondicherry University, Puducherry, 605014, India.
| | - Anish Singhal
- Manipal University, Madhav Nagar, Manipal, 576104, India. .,Kasturba Medical College, Mangalore, 575001, India.
| | - Derese Getnet
- McKusick-Nathans Institute of Genetic Medicine and Departments of Biological Chemistry, Oncology and Pathology, Johns Hopkins University School of Medicine, 733 N. Broadway, Baltimore, MD, 21205, USA.
| | - Rajesh Raju
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India. .,Computational Biology Group, Cancer Research Program-9, Rajiv Gandhi Centre for Biotechnology, Poojappura, Kerala, 695014, India.
| | - Aditi Chatterjee
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India. .,Manipal University, Madhav Nagar, Manipal, 576104, India.
| | - Harsha Gowda
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India. .,School of Biotechnology, KIIT University, Bhubaneswar, 751024, India.
| | - T S Keshava Prasad
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India. .,Manipal University, Madhav Nagar, Manipal, 576104, India.
| | | | - Akhilesh Pandey
- McKusick-Nathans Institute of Genetic Medicine and Departments of Biological Chemistry, Oncology and Pathology, Johns Hopkins University School of Medicine, 733 N. Broadway, Baltimore, MD, 21205, USA.
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12
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Kelkar DS, Provost E, Chaerkady R, Muthusamy B, Manda SS, Subbannayya T, Selvan LDN, Wang CH, Datta KK, Woo S, Dwivedi SB, Renuse S, Getnet D, Huang TC, Kim MS, Pinto SM, Mitchell CJ, Madugundu AK, Kumar P, Sharma J, Advani J, Dey G, Balakrishnan L, Syed N, Nanjappa V, Subbannayya Y, Goel R, Prasad TSK, Bafna V, Sirdeshmukh R, Gowda H, Wang C, Leach SD, Pandey A. Annotation of the zebrafish genome through an integrated transcriptomic and proteomic analysis. Mol Cell Proteomics 2014; 13:3184-98. [PMID: 25060758 DOI: 10.1074/mcp.m114.038299] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Accurate annotation of protein-coding genes is one of the primary tasks upon the completion of whole genome sequencing of any organism. In this study, we used an integrated transcriptomic and proteomic strategy to validate and improve the existing zebrafish genome annotation. We undertook high-resolution mass-spectrometry-based proteomic profiling of 10 adult organs, whole adult fish body, and two developmental stages of zebrafish (SAT line), in addition to transcriptomic profiling of six organs. More than 7,000 proteins were identified from proteomic analyses, and ∼ 69,000 high-confidence transcripts were assembled from the RNA sequencing data. Approximately 15% of the transcripts mapped to intergenic regions, the majority of which are likely long non-coding RNAs. These high-quality transcriptomic and proteomic data were used to manually reannotate the zebrafish genome. We report the identification of 157 novel protein-coding genes. In addition, our data led to modification of existing gene structures including novel exons, changes in exon coordinates, changes in frame of translation, translation in annotated UTRs, and joining of genes. Finally, we discovered four instances of genome assembly errors that were supported by both proteomic and transcriptomic data. Our study shows how an integrative analysis of the transcriptome and the proteome can extend our understanding of even well-annotated genomes.
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Affiliation(s)
- Dhanashree S Kelkar
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‡Amrita School of Biotechnology, Amrita University, Kollam 690 525, India
| | - Elayne Provost
- §Department of Surgery, Johns Hopkins University, Baltimore, Maryland 21205
| | - Raghothama Chaerkady
- ¶McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland 21205
| | - Babylakshmi Muthusamy
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‖Centre of Excellence in Bioinformatics, School of Life Sciences, Pondicherry University, Puducherry 605014, India
| | - Srikanth S Manda
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‖Centre of Excellence in Bioinformatics, School of Life Sciences, Pondicherry University, Puducherry 605014, India; **Departments of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Tejaswini Subbannayya
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‡Amrita School of Biotechnology, Amrita University, Kollam 690 525, India
| | - Lakshmi Dhevi N Selvan
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‡Amrita School of Biotechnology, Amrita University, Kollam 690 525, India
| | - Chieh-Huei Wang
- ¶McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland 21205
| | - Keshava K Datta
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‡‡School of Biotechnology, KIIT University, Bhubaneswar, Odisha 751024, India
| | - Sunghee Woo
- §§Department of Computer Science, University of California, San Diego, California 92093
| | - Sutopa B Dwivedi
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‡Amrita School of Biotechnology, Amrita University, Kollam 690 525, India
| | - Santosh Renuse
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‡Amrita School of Biotechnology, Amrita University, Kollam 690 525, India
| | - Derese Getnet
- ¶McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland 21205
| | - Tai-Chung Huang
- ¶McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland 21205
| | - Min-Sik Kim
- ¶McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland 21205; **Departments of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Sneha M Pinto
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ¶McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland 21205; ¶¶Manipal University, Madhav Nagar, Manipal, Karnataka 576104, India
| | - Christopher J Mitchell
- ¶McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland 21205
| | - Anil K Madugundu
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
| | - Praveen Kumar
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
| | - Jyoti Sharma
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ¶¶Manipal University, Madhav Nagar, Manipal, Karnataka 576104, India
| | - Jayshree Advani
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
| | - Gourav Dey
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ¶¶Manipal University, Madhav Nagar, Manipal, Karnataka 576104, India
| | - Lavanya Balakrishnan
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‖‖Department of Biotechnology, Kuvempu University, Shimoga 577 451, India
| | - Nazia Syed
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry 605 014, India
| | - Vishalakshi Nanjappa
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‡Amrita School of Biotechnology, Amrita University, Kollam 690 525, India
| | - Yashwanth Subbannayya
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
| | - Renu Goel
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
| | - T S Keshava Prasad
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ‡Amrita School of Biotechnology, Amrita University, Kollam 690 525, India; ‖Centre of Excellence in Bioinformatics, School of Life Sciences, Pondicherry University, Puducherry 605014, India; ¶¶Manipal University, Madhav Nagar, Manipal, Karnataka 576104, India
| | - Vineet Bafna
- §§Department of Computer Science, University of California, San Diego, California 92093
| | - Ravi Sirdeshmukh
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
| | - Harsha Gowda
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India
| | - Charles Wang
- The Center for Genomics and Division of Microbiology & Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, California 92350;
| | - Steven D Leach
- §Department of Surgery, Johns Hopkins University, Baltimore, Maryland 21205; ¶McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland 21205;
| | - Akhilesh Pandey
- From the *Institute of Bioinformatics, International Technology Park, Bangalore 560 066, India; ¶McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, Maryland 21205; **Departments of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; Sol Goldman Pancreatic Cancer Research Center, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205; Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
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13
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Dwivedi SB, Muthusamy B, Kumar P, Kim MS, Nirujogi RS, Getnet D, Ahiakonu P, De G, Nair B, Gowda H, Prasad TSK, Kumar N, Pandey A, Okulate M. Brain proteomics of Anopheles gambiae. OMICS 2014; 18:421-37. [PMID: 24937107 DOI: 10.1089/omi.2014.0007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Anopheles gambiae has a well-adapted system for host localization, feeding, and mating behavior, which are all governed by neuronal processes in the brain. However, there are no published reports characterizing the brain proteome to elucidate neuronal signaling mechanisms in the vector. To this end, a large-scale mapping of the brain proteome of An. gambiae was carried out using high resolution tandem mass spectrometry, revealing a repertoire of >1800 proteins, of which 15% could not be assigned any function. A large proportion of the identified proteins were predicted to be involved in diverse biological processes including metabolism, transport, protein synthesis, and olfaction. This study also led to the identification of 10 GPCR classes of proteins, which could govern sensory pathways in mosquitoes. Proteins involved in metabolic and neural processes, chromatin modeling, and synaptic vesicle transport associated with neuronal transmission were predominantly expressed in the brain. Proteogenomic analysis expanded our findings with the identification of 15 novel genes and 71 cases of gene refinements, a subset of which were validated by RT-PCR and sequencing. Overall, our study offers valuable insights into the brain physiology of the vector that could possibly open avenues for intervention strategies for malaria in the future.
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Affiliation(s)
- Sutopa B Dwivedi
- 1 Institute of Bioinformatics , International Technology Park, Bangalore, Karnataka, India
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14
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Wada S, Harris TJ, Tryggestad E, Yoshimura K, Zeng J, Yen HR, Getnet D, Grosso JF, Bruno TC, De Marzo AM, Netto GJ, Pardoll DM, DeWeese TL, Wong J, Drake CG. Combined treatment effects of radiation and immunotherapy: studies in an autochthonous prostate cancer model. Int J Radiat Oncol Biol Phys 2013; 87:769-76. [PMID: 24064321 DOI: 10.1016/j.ijrobp.2013.07.015] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 06/19/2013] [Accepted: 07/12/2013] [Indexed: 11/17/2022]
Abstract
PURPOSE To optimize the combination of ionizing radiation and cellular immunotherapy using a preclinical autochthonous model of prostate cancer. METHODS AND MATERIALS Transgenic mice expressing a model antigen under a prostate-specific promoter were treated using a platform that integrates cone-beam CT imaging with 3-dimensional conformal therapy. Using this technology we investigated the immunologic and therapeutic effects of combining ionizing radiation with granulocyte/macrophage colony-stimulating factor-secreting cellular immunotherapy for prostate cancer in mice bearing autochthonous prostate tumors. RESULTS The combination of ionizing radiation and immunotherapy resulted in a significant decrease in pathologic tumor grade and gross tumor bulk that was not evident with either single-modality therapy. Furthermore, combinatorial therapy resulted in improved overall survival in a preventive metastasis model and in the setting of established micrometastases. Mechanistically, combined therapy resulted in an increase of the ratio of effector-to-regulatory T cells for both CD4 and CD8 tumor-infiltrating lymphocytes. CONCLUSIONS Our preclinical model establishes a potential role for the use of combined radiation-immunotherapy in locally advanced prostate cancer, which warrants further exploration in a clinical setting.
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MESH Headings
- Adenocarcinoma/immunology
- Adenocarcinoma/mortality
- Adenocarcinoma/pathology
- Adenocarcinoma/therapy
- Adoptive Transfer/methods
- Animals
- Antigens, Neoplasm/immunology
- Antigens, Neoplasm/metabolism
- Cancer Vaccines/immunology
- Cancer Vaccines/therapeutic use
- Cell Line, Tumor
- Combined Modality Therapy/methods
- Combined Modality Therapy/mortality
- Cone-Beam Computed Tomography/methods
- Hemagglutinins/immunology
- Hemagglutinins/metabolism
- Immunotherapy, Adoptive/methods
- Immunotherapy, Adoptive/mortality
- Lymphocytes, Tumor-Infiltrating/cytology
- Male
- Mice
- Mice, Transgenic
- Neoplasm Grading
- Neoplasm Micrometastasis/prevention & control
- Organs at Risk/diagnostic imaging
- Prostatic Neoplasms/immunology
- Prostatic Neoplasms/mortality
- Prostatic Neoplasms/pathology
- Prostatic Neoplasms/therapy
- Radionuclide Imaging
- Radiotherapy Dosage
- Radiotherapy, Conformal/methods
- Radiotherapy, Conformal/mortality
- T-Lymphocytes, Helper-Inducer/cytology
- T-Lymphocytes, Regulatory/cytology
- Tumor Burden
- Urinary Bladder/diagnostic imaging
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Affiliation(s)
- Satoshi Wada
- Department of Oncology, James Buchanan Brady Urological Institute, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
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15
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Alger HM, Raben N, Pistilli E, Francia DL, Rawat R, Getnet D, Ghimbovschi S, Chen YW, Lundberg IE, Nagaraju K. The role of TRAIL in mediating autophagy in myositis skeletal muscle: a potential nonimmune mechanism of muscle damage. ACTA ACUST UNITED AC 2013; 63:3448-57. [PMID: 21769834 DOI: 10.1002/art.30530] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Multinucleated cells are relatively resistant to classic apoptosis, and the factors initiating cell death and damage in myositis are not well defined. We hypothesized that nonimmune autophagic cell death may play a role in muscle fiber damage. Recent reports indicate that TRAIL may induce both NF-κB activation and autophagic cell death in other systems. We undertook this study to investigate the role of TRAIL in cell death and pathogenesis in vitro and in vivo, using myositis muscle tissues from humans and mice. METHODS Gene expression profiling was performed in myositis patient and control muscle specimens. Immunohistochemistry analysis was performed to confirm the gene array findings. We also analyzed TRAIL-induced cell death (apoptosis and autophagy) and NF-κB activation in vitro in cultured cells. RESULTS TRAIL was expressed predominantly in myositis muscle fibers, but not in biopsy specimens from normal or other dystrophic-diseased muscle. Autophagy markers were up-regulated in humans with myositis and in mouse models of myositis. TRAIL expression was restricted to regenerating/atrophic areas of muscle fascicles, blood vessels, and infiltrating lymphocytes. TRAIL induced NF-κB activation and IκB degradation in cultured cells that are resistant to TRAIL-induced apoptosis but that undergo autophagic cell death. CONCLUSION Our data demonstrate that TRAIL is expressed in myositis muscle and may mediate both activation of NF-κB and autophagic cell death in myositis. Thus, this nonimmune pathway may be an attractive target for therapeutic intervention in myositis.
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Affiliation(s)
- Heather M Alger
- Children's National Medical Center and George Washington University Medical Center, Washington, DC, USA
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16
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Kim MS, Kuppireddy SV, Sakamuri S, Singal M, Getnet D, Harsha HC, Goel R, Balakrishnan L, Jacob HKC, Kashyap MK, Tankala SG, Maitra A, Iacobuzio-Donahue CA, Jaffee E, Goggins MG, Velculescu VE, Hruban RH, Pandey A. Rapid characterization of candidate biomarkers for pancreatic cancer using cell microarrays (CMAs). J Proteome Res 2012; 11:5556-63. [PMID: 22985314 PMCID: PMC3565537 DOI: 10.1021/pr300483r] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Tissue microarrays have become a valuable tool for high-throughput analysis using immunohistochemical labeling. However, the large majority of biochemical studies are carried out in cell lines to further characterize candidate biomarkers or therapeutic targets with subsequent studies in animals or using primary tissues. Thus, cell line-based microarrays could be a useful screening tool in some situations. Here, we constructed a cell microarray (CMA) containing a panel of 40 pancreatic cancer cell lines available from American Type Culture Collection in addition to those locally available at Johns Hopkins. As proof of principle, we performed immunocytochemical labeling of an epithelial cell adhesion molecule (Ep-CAM), a molecule generally expressed in the epithelium, on this pancreatic cancer CMA. In addition, selected molecules that have been previously shown to be differentially expressed in pancreatic cancer in the literature were validated. For example, we observed strong labeling of CA19-9 antigen, a prognostic and predictive marker for pancreatic cancer. We also carried out a bioinformatics analysis of a literature curated catalog of pancreatic cancer biomarkers developed previously by our group and identified two candidate biomarkers, HLA class I and transmembrane protease, serine 4 (TMPRSS4), and examined their expression in the cell lines represented on the pancreatic cancer CMAs. Our results demonstrate the utility of CMAs as a useful resource for rapid screening of molecules of interest and suggest that CMAs can become a universal standard platform in cancer research.
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Affiliation(s)
- Min-Sik Kim
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Sarada V. Kuppireddy
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Sruthi Sakamuri
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Mukul Singal
- Government Medical College and Hospital, Chandigarh 160030, India
| | - Derese Getnet
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - H. C. Harsha
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
| | - Renu Goel
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
| | - Lavanya Balakrishnan
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
| | - Harrys K. C. Jacob
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
| | - Manoj K. Kashyap
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
| | | | - Anirban Maitra
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Pathology Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland 21231, United States
| | - Christine A. Iacobuzio-Donahue
- Department of Pathology Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland 21231, United States
| | - Elizabeth Jaffee
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland 21231, United States
| | - Michael G. Goggins
- Department of Pathology Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland 21231, United States
| | - Victor E. Velculescu
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Ludwig Center for Cancer Genetics and Therapeutics, Johns Hopkins Kimmel Cancer Center, Baltimore, Maryland 21231, United States
| | - Ralph H. Hruban
- Department of Pathology Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland 21231, United States
| | - Akhilesh Pandey
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Pathology Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland 21231, United States
- Corresponding Author . Fax: +1-410-502-7544.
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17
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Bruno TC, Rothwell C, Grosso JF, Getnet D, Yen HR, Durham NM, Netto G, Pardoll DM, Drake CG. Anti-tumor effects of endogenous prostate cancer-specific CD8 T cells in a murine TCR transgenic model. Prostate 2012; 72:514-22. [PMID: 21761425 PMCID: PMC3248615 DOI: 10.1002/pros.21453] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Accepted: 06/13/2011] [Indexed: 11/10/2022]
Abstract
BACKGROUND The CD8 T-cell response to prostate and other cancers is often functionally diminished or absent. This may occur via deletion of tumor-specific T cells, through acquisition of an anergic phenotype, or via active suppression mediated by another population of cells. METHODS We used a double transgenic model in which mice express CD8 T cells specific for a prostate/prostate cancer antigen to study the response of CD8 T cells to evolving autochronous prostate tumors in TRAMP mice. CD8 T cells were analyzed for functionality by measuring IFN-γ production via flow cytometry and via an in vivo CTL killing assay. In addition, pathological scoring of the prostates of the double transgenic mice was compared to scoring of tumor burden prostates of ProTRAMP mice. RESULTS Tumor-specific CD8 T cells were not grossly deleted in these animals, but evidenced a clearly non-functional phenotype. Interestingly, full lytic function was rapidly recovered upon removal from tumor-bearing mice. CONCLUSIONS These data indicate a role for continuous antigen exposure in the maintenance of tumor-specific CD8 T-cell tolerance to prostate cancer.
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Affiliation(s)
- Tullia C. Bruno
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Cristin Rothwell
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Joseph F. Grosso
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Derese Getnet
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Hung Rong Yen
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Nicholas M. Durham
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - George Netto
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Drew M. Pardoll
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Charles G. Drake
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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18
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Zabransky DJ, Nirschl CJ, Durham NM, Park BV, Ceccato CM, Bruno TC, Tam AJ, Getnet D, Drake CG. Phenotypic and functional properties of Helios+ regulatory T cells. PLoS One 2012; 7:e34547. [PMID: 22479644 PMCID: PMC3316700 DOI: 10.1371/journal.pone.0034547] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [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: 09/19/2011] [Accepted: 03/05/2012] [Indexed: 12/22/2022] Open
Abstract
Helios, an Ikaros family transcription factor, is preferentially expressed at the mRNA and protein level in regulatory T cells. Helios expression previously appeared to be restricted to thymic-derived Treg. Consistent with recent data, we show here that Helios expression is inducible in vitro under certain conditions. To understand phenotypic and functional differences between Helios+ and Helios− Treg, we profiled cell-surface markers of FoxP3+ Treg using unmanipulated splenocytes. We found that CD103 and GITR are expressed at high levels on a subset of Helios+ Treg and that a Helios+ Treg population could be significantly enriched by FACS sorting using these two markers. Quantitative real-time PCR (qPCR) analysis revealed increased TGF-β message in Helios+ Treg, consistent with the possibility that this population possesses enhanced regulatory potential. In tumor-bearing mice, we found that Helios+ Treg were relatively over-represented in the tumor-mass, and BrdU studies showed that, in vivo, Helios+ Treg proliferated more than Helios− Treg. We hypothesized that Helios-enriched Treg might exert increased suppressive effects. Using in vitro suppression assays, we show that Treg function correlates with the absolute number of Helios+ cells in culture. Taken together, these data show that Helios+ Treg represent a functional subset with associated CD103 and GITR expression.
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Affiliation(s)
- Daniel J. Zabransky
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Christopher J. Nirschl
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Nicholas M. Durham
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Ben V. Park
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Christina M. Ceccato
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Tullia C. Bruno
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Ada J. Tam
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Derese Getnet
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Charles G. Drake
- Department of Oncology, Johns Hopkins University, Baltimore, Maryland, United States of America
- James Buchanan Brady Urological Institute, Baltimore, Maryland, United States of America
- * E-mail:
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19
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Huang TC, Sahasrabuddhe NA, Kim MS, Getnet D, Yang Y, Peterson JM, Ghosh B, Chaerkady R, Leach SD, Marchionni L, Wong GW, Pandey A. Regulation of lipid metabolism by Dicer revealed through SILAC mice. J Proteome Res 2012; 11:2193-205. [PMID: 22313051 DOI: 10.1021/pr2009884] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Dicer is a ribonuclease whose major role is to generate mature microRNAs, although additional functions have been proposed. Deletion of Dicer leads to embryonic lethality in mice. To study the role of Dicer in adults, we generated mice in which administration of tamoxifen induces deletion of Dicer. Surprisingly, disruption of Dicer in adult mice induced lipid accumulation in the small intestine. To dissect the underlying mechanisms, we carried out miRNA, mRNA, and proteomic profiling of the small intestine. The proteomic analysis was done using mice metabolically labeled with heavy lysine (SILAC mice) for an in vivo readout. We identified 646 proteins, of which 80 were up-regulated >2-fold and 75 were down-regulated. Consistent with the accumulation of lipids, Dicer disruption caused a marked decrease of microsomal triglyceride transfer protein, long-chain fatty acyl-CoA ligase 5, fatty acid binding protein, and very-long-chain fatty acyl-CoA dehydrogenase, among others. We validated these results using multiple reaction monitoring (MRM) experiments by targeting proteotypic peptides. Our data reveal a previously unappreciated role of Dicer in lipid metabolism. These studies demonstrate that a systems biology approach by integrating mouse models, metabolic labeling, gene expression profiling, and quantitative proteomics can be a powerful tool for understanding complex biological systems.
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Affiliation(s)
- Tai-Chung Huang
- McKusick-Nathans Institute of Genetic Medicine, Department of Biological Chemistry, Center for Metabolism and Obesity Research, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
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20
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Zhong J, Kim MS, Chaerkady R, Wu X, Huang TC, Getnet D, Mitchell CJ, Palapetta SM, Sharma J, O'Meally RN, Cole RN, Yoda A, Moritz A, Loriaux MM, Rush J, Weinstock DM, Tyner JW, Pandey A. TSLP signaling network revealed by SILAC-based phosphoproteomics. Mol Cell Proteomics 2012; 11:M112.017764. [PMID: 22345495 DOI: 10.1074/mcp.m112.017764] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Thymic stromal lymphopoietin (TSLP) is a cytokine that plays diverse roles in the regulation of immune responses. TSLP requires a heterodimeric receptor complex consisting of IL-7 receptor α subunit and its unique TSLP receptor (gene symbol CRLF2) to transmit signals in cells. Abnormal TSLP signaling (e.g. overexpression of TSLP or its unique receptor TSLPR) contributes to the development of a number of diseases including asthma and leukemia. However, a detailed understanding of the signaling pathways activated by TSLP remains elusive. In this study, we performed a global quantitative phosphoproteomic analysis of the TSLP signaling network using stable isotope labeling by amino acids in cell culture. By employing titanium dioxide in addition to antiphosphotyrosine antibodies as enrichment methods, we identified 4164 phosphopeptides on 1670 phosphoproteins. Using stable isotope labeling by amino acids in cell culture-based quantitation, we determined that the phosphorylation status of 226 proteins was modulated by TSLP stimulation. Our analysis identified activation of several members of the Src and Tec families of kinases including Btk, Lyn, and Tec by TSLP for the first time. In addition, we report TSLP-induced phosphorylation of protein phosphatases such as Ptpn6 (SHP-1) and Ptpn11 (Shp2), which has also not been reported previously. Co-immunoprecipitation assays showed that Shp2 binds to the adapter protein Gab2 in a TSLP-dependent manner. This is the first demonstration of an inducible protein complex in TSLP signaling. A kinase inhibitor screen revealed that pharmacological inhibition of PI-3 kinase, Jak family kinases, Src family kinases or Btk suppressed TSLP-dependent cellular proliferation making them candidate therapeutic targets in diseases resulting from aberrant TSLP signaling. Our study is the first phosphoproteomic analysis of the TSLP signaling pathway that greatly expands our understanding of TSLP signaling and provides novel therapeutic targets for TSLP/TSLPR-associated diseases in humans.
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Affiliation(s)
- Jun Zhong
- McKusick-Nathans Institute of Genetic Medicine and Department of Biological Chemistry, Johns Hopkins University School of Medicine, 733 N Broadway, Baltimore, 21205 Maryland, USA
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21
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Chaerkady R, Kelkar DS, Muthusamy B, Kandasamy K, Dwivedi SB, Sahasrabuddhe NA, Kim MS, Renuse S, Pinto SM, Sharma R, Pawar H, Sekhar NR, Mohanty AK, Getnet D, Yang Y, Zhong J, Dash AP, MacCallum RM, Delanghe B, Mlambo G, Kumar A, Keshava Prasad TS, Okulate M, Kumar N, Pandey A. A proteogenomic analysis of Anopheles gambiae using high-resolution Fourier transform mass spectrometry. Genome Res 2011; 21:1872-81. [PMID: 21795387 DOI: 10.1101/gr.127951.111] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Anopheles gambiae is a major mosquito vector responsible for malaria transmission, whose genome sequence was reported in 2002. Genome annotation is a continuing effort, and many of the approximately 13,000 genes listed in VectorBase for Anopheles gambiae are predictions that have still not been validated by any other method. To identify protein-coding genes of An. gambiae based on its genomic sequence, we carried out a deep proteomic analysis using high-resolution Fourier transform mass spectrometry for both precursor and fragment ions. Based on peptide evidence, we were able to support or correct more than 6000 gene annotations including 80 novel gene structures and about 500 translational start sites. An additional validation by RT-PCR and cDNA sequencing was successfully performed for 105 selected genes. Our proteogenomic analysis led to the identification of 2682 genome search-specific peptides. Numerous cases of encoded proteins were documented in regions annotated as intergenic, introns, or untranslated regions. Using a database created to contain potential splice sites, we also identified 35 novel splice junctions. This is a first report to annotate the An. gambiae genome using high-accuracy mass spectrometry data as a complementary technology for genome annotation.
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Affiliation(s)
- Raghothama Chaerkady
- McKusick-Nathans Institute of Genetic Medicine and Department of Biological Chemistry, Johns Hopkins University, Baltimore, Maryland 21205, USA
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22
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Raju R, Balakrishnan L, Nanjappa V, Bhattacharjee M, Getnet D, Muthusamy B, Kurian Thomas J, Sharma J, Rahiman BA, Harsha HC, Shankar S, Prasad TSK, Mohan SS, Bader GD, Wani MR, Pandey A. A comprehensive manually curated reaction map of RANKL/RANK-signaling pathway. Database (Oxford) 2011; 2011:bar021. [PMID: 21742767 PMCID: PMC3170171 DOI: 10.1093/database/bar021] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Receptor activator of nuclear factor-kappa B ligand (RANKL) is a member of tumor necrosis factor (TNF) superfamily that plays a key role in the regulation of differentiation, activation and survival of osteoclasts and also in tumor cell migration and bone metastasis. Osteoclast activation induced by RANKL regulates hematopoietic stem cell mobilization as part of homeostasis and host defense mechanisms thereby linking regulation of hematopoiesis with bone remodeling. Binding of RANKL to its receptor, Receptor activator of nuclear factor-kappa B (RANK) activates molecules such as NF-kappa B, mitogen activated protein kinase (MAPK), nuclear factor of activated T cells (NFAT) and phosphatidyl 3-kinase (PI3K). Although the molecular and cellular roles of these molecules have been reported previously, a systematic cataloging of the molecular events induced by RANKL/RANK interaction has not been attempted. Here, we present a comprehensive reaction map of the RANKL/RANK-signaling pathway based on an extensive manual curation of the published literature. We hope that the curated RANKL/RANK-signaling pathway model would enable new biomedical discoveries, which can provide novel insights into disease processes and development of novel therapeutic interventions. Database URL:http://www.netpath.org/pathways?path_id=NetPath_21
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Affiliation(s)
- Rajesh Raju
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
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23
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Bruno T, Durham N, Nirschl C, Ceccato C, Getnet D, Pardoll D, Drake C. The role of PD-1 in human CD8 prostate infiltrating lymphocytes. (66.12). The Journal of Immunology 2011. [DOI: 10.4049/jimmunol.186.supp.66.12] [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] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
CD8 T cell tolerance to tumors is multi faceted and includes both extrinsic and intrinsic factors. Extrinsically, the tumor microenvironment seems to play a large role in the functional inertness of CD8 T cells; major contributors are persistent antigen exposure in the microenvironment as well as T regulatory cells. Intrinsically, lack of costimulation seems to play a role (anergy), and often, the presence of inhibitory checkpoints such as PD-1, CTLA-4, LAG-3, and 41BB can also facilitate the down regulation of CD8 T cell function. In CD8 prostate infiltrating lymphocytes (PILS) from cancer patients, we observe refractoriness to TCR stimulation accompanied by reduced cytokine production (IFN-γ and TNF-α) that cannot be reversed by addition of IL-2. Thus, in trying to decipher the exact intrinsic factor that could play a direct role on the CD8 PILS, we measured inhibitory checkpoints on the cell surface. PD-1 was a major checkpoint, and seemed to correlate with reduced Granzyme B production. Interestingly, the total CD8 PIL population was not deficient in Granzyme B production, just the PD-1+ CD8 PILS. Additionally, blockade with anti PD-1 restored proliferation and Granzyme B production in the CD8 PILS, which indicates a potential clinical implication of anti PD-1 immunotherapy.
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Affiliation(s)
- Tullia Bruno
- 1Oncology, Johns Hopkins University, Baltimore, MD
| | | | | | | | | | - Drew Pardoll
- 1Oncology, Johns Hopkins University, Baltimore, MD
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24
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Yen HR, Harris T, Radojcic V, Huang DD, Grosso J, Getnet D, Wada S, Goldberg M, Bruno T, Durham N, Khazaie K, Luznik L, Lin TY, Pardoll D, Huang CT, Drake C. Adoptive transfer of Tc17 CD8 T cells leads to tumor inhibition and anti-tumor response (95.15). The Journal of Immunology 2010. [DOI: 10.4049/jimmunol.184.supp.95.15] [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] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Although CD4+ T cells that secrete IL-17 (TH17) have been fairly well-studied, we and others have shown that CD8 T cells can be cultured under similar skewing conditions, resulting in CD8 cells with a robust ability to secrete IL-17. The physiological role such CD8 T cells (Tc17) is not well understood. In our previous data, we showed that Tc17 can functionally convert to IFN-g producing cells, expand, and mediate autoimmunity in a self-antigen murine model. Because autoimmunity and antitumor immunity both involve the breaking of peripheral T cell tolerance, we performed experiments to test whether Tc17 could mediate anti-tumor immunity in implanted tumor models. In a preventive model, small numbers (0.1M) of sorted IFN-g-producing Tc1, IL-17-producing or IFN-g-producing Tc17 TCR-transgenic HA-recognizing CD8 T cells were adoptively transferred to immunocompetent recipient (Balb/C) mice on day -1, and 0.5M CT-26 tumor cells expressing HA as antigen were implanted into the footpad on day 0. Adoptive transfer of Tc17 was significantly superior to Tc1 in mediating an antitumor response and a better survival rate. Additional mechanisms are being explored.
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Affiliation(s)
- Hung-Rong Yen
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
- 2Graduate Institute of Clinical Medical Sciences, Chang Gung University, and Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Timothy Harris
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Vedran Radojcic
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Dih-Dih Huang
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Joseph Grosso
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Derese Getnet
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Satoshi Wada
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Monica Goldberg
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Tullia Bruno
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Nicholas Durham
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Khashayarsha Khazaie
- 5Division of Gastroenterology and Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Leo Luznik
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Tzou-Yien Lin
- 4Department of Pediatrics, Chang Gung Children's Hospital, Taoyuan, Taiwan
| | - Drew Pardoll
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Ching-Tai Huang
- 3Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Charles Drake
- 1Department of Oncology, Sidney Kimmel Comprehensive Cancer Center,The Johns Hopkins University School of Medicine, Baltimore, MD
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Bruno T, Noonan K, Grosso J, Durham N, Goldberg M, Getnet D, Yen HR, Pyle K, Borrello I, Pardoll D, Drake C. Role of human lymphocyte activation gene 3 in tumor infiltrating lymphocytes (101.12). The Journal of Immunology 2010. [DOI: 10.4049/jimmunol.184.supp.101.12] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Among the various molecules that regulate T cell function, lymphocyte activation gene 3 (LAG- 3) has garnered significant interest. LAG-3 is expressed on activated T cells, B cells, NK cells, tumor infiltrating lymphocytes (TILs), and plasmacytoid dendritic cells. We previously showed that LAG-3 was relatively over-expressed on HA-specific transgenic T cells rendered anergic in vivo by encounter with cognate self antigen. In this system, regulatory activity could be functionally blocked with a LAG-3 specific monoclonal antibody (Huang et al). Observations in our lab using LAG-3 knockout mice demonstrate that CD8 T cells undergo enhanced homeostatic proliferation in vivo if LAG-3 is absent. Currently, we are conducting studies to understand the role of LAG-3 in human cancer. Via microarray, we compared CD4+25+GITR+ (Treg) T cells from the prostate to CD4+25-45RA+ (naïve) T cells from the peripheral blood. We found LAG-3 and CTLA-4 to be relatively upregulated in prostate infiltrating T regulatory cells. Also, at the expression level, we observed variable levels of LAG-3 expression on patient CD8 tumor infiltrating T lymphocytes (TILs). At a functional level, we have shown that a human anti-human LAG-3 antibody enhances T cell proliferation and cytokine function in a mixed lymphocyte reaction. Further studies that are currently underway suggest that LAG-3 could be a promising candidate for enhancing anti-tumor immunotherapy in a clinical setting.
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Affiliation(s)
- Tullia Bruno
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
| | - Kimberly Noonan
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Joseph Grosso
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Nicholas Durham
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
| | - Monica Goldberg
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Derese Getnet
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
| | - Hung Rong Yen
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Kristin Pyle
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Ivan Borrello
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Drew Pardoll
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Charles Drake
- 2Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
- 1Oncology/Immunology, Johns Hopkins School of Medicine, Baltimore, MD
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Getnet D, Grosso JF, Goldberg MV, Harris TJ, Yen HR, Bruno TC, Durham NM, Hipkiss EL, Pyle KJ, Wada S, Pan F, Pardoll DM, Drake CG. A role for the transcription factor Helios in human CD4(+)CD25(+) regulatory T cells. Mol Immunol 2010; 47:1595-600. [PMID: 20226531 DOI: 10.1016/j.molimm.2010.02.001] [Citation(s) in RCA: 171] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2009] [Revised: 01/28/2010] [Accepted: 02/06/2010] [Indexed: 12/31/2022]
Abstract
Relative upregulation of the Ikaros family transcription factor Helios in natural regulatory T cells (Tregs) has been reported by several groups. However, a role for Helios in regulatory T cells has not yet been described. Here, we show that Helios is upregulated in CD4(+)CD25(+) regulatory T cells. Chromatin-immunoprecipitation (ChIP) experiments indicated that Helios binds to the FoxP3 promoter. These data were further corroborated by experiments showing that knocking-down Helios with siRNA oligonucleotides results in down-regulation of FoxP3. Functionally, we found that suppression of Helios message in CD4(+)CD25(+) T cells significantly attenuates their suppressive function. Taken together, these data suggest that Helios may play an important role in regulatory T cell function and support the concept that Helios may be a novel target to manipulate Treg activity in a clinical setting.
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Affiliation(s)
- Derese Getnet
- Department of Oncology, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21231, USA
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27
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Yen HR, Harris TJ, Wada S, Grosso JF, Getnet D, Goldberg MV, Liang KL, Bruno TC, Pyle KJ, Chan SL, Anders RA, Trimble CL, Adler AJ, Lin TY, Pardoll DM, Huang CT, Drake CG. Tc17 CD8 T cells: functional plasticity and subset diversity. J Immunol 2009; 183:7161-8. [PMID: 19917680 DOI: 10.4049/jimmunol.0900368] [Citation(s) in RCA: 154] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
IL-17-secreting CD8 T cells (Tc17) have been described in several settings, but little is known regarding their functional characteristics. While Tc1 cells produced IFN-gamma and efficiently killed targets, Tc17 cells lacked lytic function in vitro. Interestingly, the small numbers of IFN-gamma-positive or IL-17/IFN-gamma-double-positive cells generated under Tc17 conditions also lacked lytic activity and expressed a similar pattern of cell surface proteins to IL-17-producing cells. As is the case for Th17 (CD4) cells, STAT3 is important for Tc17 polarization, both in vitro and in vivo. Adoptive transfer of highly purified, Ag-specific IL-17-secreting Tc17 cells into Ag-bearing hosts resulted in near complete conversion to an IFN-gamma-secreting phenotype and substantial pulmonary pathology, demonstrating functional plasticity. Tc17 also accumulated to a greater extent than did Tc1 cells, suggesting that adoptive transfer of CD8 T cells cultured in Tc17 conditions may have therapeutic potential for diseases in which IFN-gamma-producing cells are desired.
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Affiliation(s)
- Hung-Rong Yen
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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28
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Pan F, Yu H, Dang EV, Barbi J, Pan X, Grosso JF, Jinasena D, Sharma SM, McCadden EM, Getnet D, Drake CG, Liu JO, Ostrowski MC, Pardoll DM. Eos mediates Foxp3-dependent gene silencing in CD4+ regulatory T cells. Science 2009; 325:1142-6. [PMID: 19696312 PMCID: PMC2859703 DOI: 10.1126/science.1176077] [Citation(s) in RCA: 246] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
CD4+ regulatory T cells (Tregs) maintain immunological self-tolerance and immune homeostasis by suppressing aberrant or excessive immune responses. The core genetic program of Tregs and their ability to suppress pathologic immune responses depends on the transcription factor Foxp3. Despite progress in understanding mechanisms of Foxp3-dependent gene activation, the molecular mechanism of Foxp3-dependent gene repression remains largely unknown. We identified Eos, a zinc-finger transcription factor of the Ikaros family, as a critical mediator of Foxp3-dependent gene silencing in Tregs. Eos interacts directly with Foxp3 and induces chromatin modifications that result in gene silencing in Tregs. Silencing of Eos in Tregs abrogates their ability to suppress immune responses and endows them with partial effector function, thus demonstrating the critical role that Eos plays in Treg programming.
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Affiliation(s)
- Fan Pan
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | - Hong Yu
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | - Eric V. Dang
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | - Joseph Barbi
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | - Xiaoyu Pan
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | - Joseph F. Grosso
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | | | - Sudarshana M. Sharma
- Department of Molecular and Cellular Biochemistry and Comprehensive Cancer Center, Ohio State University, Columbus, Ohio 43210
| | - Erin M. McCadden
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | - Derese Getnet
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | - Charles G. Drake
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | - Jun O. Liu
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - Michael C. Ostrowski
- Department of Molecular and Cellular Biochemistry and Comprehensive Cancer Center, Ohio State University, Columbus, Ohio 43210
| | - Drew M. Pardoll
- Immunology and Hematopoiesis Division, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
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Grosso JF, Goldberg MV, Getnet D, Bruno TC, Yen HR, Pyle KJ, Hipkiss E, Vignali DAA, Pardoll DM, Drake CG. Functionally distinct LAG-3 and PD-1 subsets on activated and chronically stimulated CD8 T cells. J Immunol 2009; 182:6659-69. [PMID: 19454660 DOI: 10.4049/jimmunol.0804211] [Citation(s) in RCA: 193] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lymphocyte Activation Gene-3 (LAG-3) is a transmembrane protein that binds MHC class II, enhances regulatory T cell activity, and negatively regulates cellular proliferation, activation, and homeostasis of T cells. Programmed Death 1 (PD-1) also negatively regulates T cell function. LAG-3 and PD-1 are both transiently expressed on CD8 T cells that have been stimulated during acute activation. However, both LAG-3 and PD-1 remain on CD8 T cells at high levels after stimulation within tolerizing environments. Our previous data demonstrated that blockade of either LAG-3 or PD-1 using mAb therapy in combination with vaccination restores the function of tolerized Ag-specific CD8 T cells in models of self and tumor tolerance. It is unclear whether tolerized CD8 T cells coexpress PD-1 and LAG-3 or whether PD-1 and LAG-3 mark functionally distinct populations of CD8 T cells. In this study, we describe three populations of CD8 T cells activated under tolerizing conditions based on LAG-3 and PD-1 staining, each with distinct phenotypic and functional characteristics. From a mechanistic perspective, both Ag concentration and proinflammatory signals control the expression of LAG-3 and PD-1 phenotypes on CD8 T cells under activating and tolerizing conditions. These results imply that signaling through the PD-1 and LAG-3 pathways have distinct functional consequences to CD8 T cells under tolerizing conditions and manipulation of both Ag and cytokine signaling can influence CD8 tolerance through LAG-3 and PD-1.
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Affiliation(s)
- Joseph F Grosso
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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30
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Wada S, Yoshimura K, Hipkiss EL, Harris TJ, Yen HR, Goldberg MV, Grosso JF, Getnet D, Demarzo AM, Netto GJ, Anders R, Pardoll DM, Drake CG. Cyclophosphamide augments antitumor immunity: studies in an autochthonous prostate cancer model. Cancer Res 2009; 69:4309-18. [PMID: 19435909 DOI: 10.1158/0008-5472.can-08-4102] [Citation(s) in RCA: 127] [Impact Index Per Article: 8.5] [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
To study the immune response to prostate cancer, we developed an autochthonous animal model based on the transgenic adenocarcinoma of the mouse prostate (TRAMP) mouse in which spontaneously developing tumors express influenza hemagglutinin as a unique, tumor-associated antigen. Our prior studies in these animals showed immunologic tolerance to hemagglutinin, mirroring the clinical situation in patients with cancer who are generally nonresponsive to their disease. We used this physiologically relevant animal model to assess the immunomodulatory effects of cyclophosphamide when administered in combination with an allogeneic, cell-based granulocyte-macrophage colony-stimulating factor-secreting cancer immunotherapy. Through adoptive transfer of prostate/prostate cancer-specific CD8 T cells as well as through studies of the endogenous T-cell repertoire, we found that cyclophosphamide induced a marked augmentation of the antitumor immune response. This effect was strongly dependent on both the dose and the timing of cyclophosphamide administration. Mechanistic studies showed that immune augmentation by cyclophosphamide was associated with a transient depletion of regulatory T cells in the tumor draining lymph nodes but not in the peripheral circulation. Interestingly, we also noted effects on dendritic cell phenotype; low-dose cyclophosphamide was associated with increased expression of dendritic cell maturation markers. Taken together, these data clarify the dose, timing, and mechanism of action by which immunomodulatory cyclophosphamide can be translated to a clinical setting in a combinatorial cancer treatment strategy.
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Affiliation(s)
- Satoshi Wada
- Department of Oncology, James Buchanan Brady Urological Institute, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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31
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Getnet D, Maris CH, Hipkiss EL, Grosso JF, Harris TJ, Yen HR, Bruno TC, Wada S, Adler A, Georgantas RW, Jie C, Goldberg MV, Pardoll DM, Drake CG. Tumor recognition and self-recognition induce distinct transcriptional profiles in antigen-specific CD4 T cells. J Immunol 2009; 182:4675-85. [PMID: 19342643 DOI: 10.4049/jimmunol.0803400] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tumors express a wide variety of both mutated and nonmutated Ags. Whether these tumor Ags are broadly recognized as self or foreign by the immune system is currently unclear. Using an autochthonous prostate cancer model in which hemagglutinin (HA) is specifically expressed in the tumor (ProHA x TRAMP mice), as well as an analogous model wherein HA is expressed in normal tissues as a model self-Ag (C3HA(high)), we examined the transcriptional profile of CD4 T cells undergoing Ag-specific division. Consistent with our previous data, transfer of Ag-specific CD4 T cells into C3HA(high) resulted in a functionally inactivated CD4 T cell profile. Conversely, adoptive transfer of an identical CD4 T cell population into ProHA x TRAMP mice resulted in the induction of a regulatory phenotype of the T cell (Treg) both at the transcriptional and functional level. Interestingly, this Treg skewing was a property of even early-stage tumors, suggesting Treg induction as an important tolerance mechanism during tumor development.
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Affiliation(s)
- Derese Getnet
- Department of Oncology, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21231, USA
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Harris TJ, Hipkiss EL, Borzillary S, Wada S, Grosso JF, Yen HR, Getnet D, Bruno TC, Goldberg MV, Pardoll DM, DeWeese TL, Drake CG. Radiotherapy augments the immune response to prostate cancer in a time-dependent manner. Prostate 2008; 68:1319-29. [PMID: 18561247 PMCID: PMC2710770 DOI: 10.1002/pros.20794] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Cancer immunotherapy refers to an array of strategies intended to treat progressive tumors by augmenting a patient's anti-tumor immune response. As immunotherapy is eventually incorporated into oncology treatment paradigms, it is important to understand how these therapies interact with established cancer treatments such as chemotherapy or Radiotherapy (RT). To address this, we utilized a well-established, autochthonous murine model of prostate cancer to test whether RT could augment (or diminish) the CD4 T cell response to a tumor vaccine. METHODS Transgenic mice that develop spontaneous prostate cancer (TRAMP) which also express a unique tumor associated antigen (Influenza hemagglutinin) under the control of a prostate-specific promoter were given local RT in combination with immunotherapy. The immunological outcome of this combinatorial strategy was assayed by monitoring the effector response of adoptively transferred, prostate-specific CD4 T cells. RESULTS Neither RT nor immunotherapy alone was capable of priming an anti-tumor immune response in animals with evolving tumors. The combination of immunotherapy with RT resulted in anti-tumor T cell activation--this effect was profoundly dependent on the relative timing of RT and immunotherapy. Anti-tumor immune responses occurred when immunotherapy was administered 3-5 weeks post-RT, but such responses were undetectable when immunotherapy was administered either earlier (peri-radiotherapy) or later. CONCLUSIONS The therapeutic temporal window of immunotherapy post-RT suggests that highly aggressive, immuno-suppressive tumors might be most sensitive to immunotherapy in a fairly narrow time window; these results should help to guide future development of clinical combinatorial strategies.
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Affiliation(s)
- Timothy J. Harris
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Edward L. Hipkiss
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Scott Borzillary
- Department of Radiation Medicine, Georgetown University Hospital, Washington, DC., USA
| | - Satoshi Wada
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Joseph F. Grosso
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Hung-Rong Yen
- Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Derese Getnet
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Tullia C. Bruno
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Monica V. Goldberg
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Drew M. Pardoll
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Theodore L. DeWeese
- Department of Radiation Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Charles G. Drake
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- The Brady Urological Institute, Johns Hopkins University, Baltimore Maryland, USA
- Address Reprints to: Charles G. Drake M.D., Ph.D., Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, 1650 Orleans St CRB I #410, Baltimore, MD 21231, Phone (410) 502-7523, Fax (410) 614-0549,
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33
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Grosso JF, Kelleher CC, Harris TJ, Maris CH, Hipkiss EL, De Marzo A, Anders R, Netto G, Getnet D, Bruno TC, Goldberg MV, Pardoll DM, Drake CG. LAG-3 regulates CD8+ T cell accumulation and effector function in murine self- and tumor-tolerance systems. J Clin Invest 2008; 117:3383-92. [PMID: 17932562 DOI: 10.1172/jci31184] [Citation(s) in RCA: 386] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2006] [Accepted: 07/25/2007] [Indexed: 01/29/2023] Open
Abstract
Lymphocyte activation gene-3 (LAG-3) is a cell-surface molecule with diverse biologic effects on T cell function. We recently showed that LAG-3 signaling is important in CD4+ regulatory T cell suppression of autoimmune responses. Here, we demonstrate that LAG-3 maintains tolerance to self and tumor antigens via direct effects on CD8+ T cells using 2 murine systems. Naive CD8+ T cells express low levels of LAG-3, and expression increases upon antigen stimulation. Our data show increased levels of LAG-3 protein on antigen-specific CD8+ T cells within antigen-expressing organs or tumors. In vivo antibody blockade of LAG-3 or genetic ablation of the Lag-3 gene resulted in increased accumulation and effector function of antigen-specific CD8+ T cells within organs and tumors that express their cognate antigen. Most notably, combining LAG-3 blockade with specific antitumor vaccination resulted in a significant increase in activated CD8+ T cells in the tumor and disruption of the tumor parenchyma. A major component of this effect was CD4 independent and required LAG-3 expression by CD8+ T cells. Taken together, these data demonstrate a direct role for LAG-3 on CD8+ T cells and suggest that LAG-3 blockade may be a potential cancer treatment.
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Affiliation(s)
- Joseph F Grosso
- Sidney Kimmel Comprehensive Cancer Center and Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
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34
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Grosso JF, Kelleher CC, Harris TJ, Maris CH, Hipkiss EL, De Marzo A, Anders R, Netto G, Getnet D, Bruno TC, Goldberg MV, Pardoll DM, Drake CG. LAG-3 regulates CD8+ T cell accumulation and effector function in murine self- and tumor-tolerance systems. J Clin Invest 2008. [PMID: 17932562 DOI: 10.1172/jci31184ds1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Lymphocyte activation gene-3 (LAG-3) is a cell-surface molecule with diverse biologic effects on T cell function. We recently showed that LAG-3 signaling is important in CD4+ regulatory T cell suppression of autoimmune responses. Here, we demonstrate that LAG-3 maintains tolerance to self and tumor antigens via direct effects on CD8+ T cells using 2 murine systems. Naive CD8+ T cells express low levels of LAG-3, and expression increases upon antigen stimulation. Our data show increased levels of LAG-3 protein on antigen-specific CD8+ T cells within antigen-expressing organs or tumors. In vivo antibody blockade of LAG-3 or genetic ablation of the Lag-3 gene resulted in increased accumulation and effector function of antigen-specific CD8+ T cells within organs and tumors that express their cognate antigen. Most notably, combining LAG-3 blockade with specific antitumor vaccination resulted in a significant increase in activated CD8+ T cells in the tumor and disruption of the tumor parenchyma. A major component of this effect was CD4 independent and required LAG-3 expression by CD8+ T cells. Taken together, these data demonstrate a direct role for LAG-3 on CD8+ T cells and suggest that LAG-3 blockade may be a potential cancer treatment.
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Affiliation(s)
- Joseph F Grosso
- Sidney Kimmel Comprehensive Cancer Center and Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
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35
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Harris TJ, Grosso JF, Yen HR, Xin H, Kortylewski M, Albesiano E, Hipkiss EL, Getnet D, Goldberg MV, Maris CH, Housseau F, Yu H, Pardoll DM, Drake CG. Cutting Edge: An In Vivo Requirement for STAT3 Signaling in TH17 Development and TH17-Dependent Autoimmunity. J Immunol 2007; 179:4313-7. [PMID: 17878325 DOI: 10.4049/jimmunol.179.7.4313] [Citation(s) in RCA: 445] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
STAT3 activation has been observed in several autoimmune diseases, suggesting that STAT3-mediated pathways promote pathologic immune responses. We provide in vivo evidence that the fundamental role of STAT3 signaling in autoimmunity relates to its absolute requirement for generating T(H)17 T cell responses. We show that STAT3 is a master regulator of this pathogenic T cell subtype, acting at multiple levels in vivo, including T(H)17 T cell differentiation and cytokine production, as well as induction of RORgamma t and the IL-23R. Neither naturally occurring T(H)17 cells nor T(H)17-dependent autoimmunity occurs when STAT3 is ablated in CD4 cells. Furthermore, ablation of STAT3 signaling in CD4 cells results in increased T(H)1 responses, indicating that STAT3 signaling skews T(H) responses away from the T(H)1 pathway and toward the T(H)17 pathway. Thus, STAT3 is a candidate target for T(H)17-dependent autoimmune disease immunotherapy that could selectively inhibit pathogenic immune pathways.
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MESH Headings
- Animals
- Autoimmune Diseases/immunology
- Autoimmune Diseases/metabolism
- Autoimmune Diseases/pathology
- Autoimmunity/immunology
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/metabolism
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Gene Expression Regulation
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Pneumonia/immunology
- Pneumonia/metabolism
- Pneumonia/pathology
- STAT3 Transcription Factor/deficiency
- STAT3 Transcription Factor/genetics
- STAT3 Transcription Factor/metabolism
- Signal Transduction/immunology
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
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Affiliation(s)
- Timothy J Harris
- Department of Oncology, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21231, USA
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36
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Goldberg MV, Maris CH, Hipkiss EL, Flies AS, Zhen L, Tuder RM, Grosso JF, Harris TJ, Getnet D, Whartenby KA, Brockstedt DG, Dubensky TW, Chen L, Pardoll DM, Drake CG. Role of PD-1 and its ligand, B7-H1, in early fate decisions of CD8 T cells. Blood 2007; 110:186-92. [PMID: 17392506 PMCID: PMC1896112 DOI: 10.1182/blood-2006-12-062422] [Citation(s) in RCA: 153] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Expression of the PD-1 receptor on T cells has been shown to provide an important inhibitory signal that down-modulates peripheral effector responses in normal tissues and tumors. Furthermore, PD-1 up-regulation on chronically activated T cells can maintain them in a partially reversible inactive state. The function of PD-1 in the very early stages of T-cell response to antigen in vivo has not been fully explored. In this study, we evaluate the role of PD-1 and its 2 B7 family ligands, B7-H1 (PD-L1) and B7-DC (PD-L2), in early fate decisions of CD8 T cells. We show that CD8 T cells specific for influenza hemagglutinin (HA) expressed as a self-antigen become functionally tolerized and express high levels of surface PD-1 by the time of their first cell division. Blockade of PD-1 or B7-H1, but not B7-DC, at the time of self-antigen encounter mitigates tolerance induction and results in CD8 T-cell differentiation into functional cytolytic T lymphocytes (CTLs). These findings demonstrate that, in addition to modulating effector functions in the periphery, B7-H1:PD-1 interactions regulate early T-cell-fate decisions.
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Affiliation(s)
- Monica V Goldberg
- Department of Oncology, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21231, USA
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Drake CG, Kelleher C, Bruno T, Harris T, Flies D, Getnet D, Hipkiss E, Maris C, Grosso J. Blocking the regulatory T cell molecule LAG-3 augments in vivo anti-tumor immunity in an autochthonous model of prostate cancer. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.2573] [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: 11/20/2022] Open
Abstract
2573 Background: LAG-3 is a CD4 homolog expressed on activated T cells, NK cells, tumor infiltrating lymphocytes (TIL), and plasmacytoid dendritic cells. Recently, we showed that LAG-3 was relatively overexpressed in specific T cells rendered unresponsive in vivo by the presence of cognate self-antigen. These anergic T cells display regulatory function both in vitro and in vivo, and blockade of LAG-3 with a non-depleting monoclonal antibody significantly mitigates their regulatory T cell activity. Methods: Using a novel model of prostate cancer in which a tumor-specific antigen is expressed in autochthonous tumors, we tested whether treatment with a non-depleting anti-LAG-3 antibody affected trafficking and function of tumor-specific T cells. Results: LAG-3 blockade significantly augments specific CD8 T cell trafficking to antigen-expressing tumors, but not to normal tissue. Most significantly, LAG-3 blockade functionally reversed CD8 T cell tolerance as assayed by an in vivo cytotoxic T lymphocyte (CTL) assay. Combining LAG-3 blockade with specific anti-tumor vaccination results in a dramatic increase in activated CD8 T cells in the tumor parenchyma. Conclusions: Taken together, these data support the concept that treatment with a LAG-3 blocking antibody may significantly delay disease progression in patients with cancer. We have recently generated a panel of monoclonal antibodies directed against human LAG-3; several of these antibodies significantly augment human T cell responses in vitro. No significant financial relationships to disclose.
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Affiliation(s)
| | | | - T. Bruno
- SKCCC at Johns Hopkins, Baltimore, MD
| | - T. Harris
- SKCCC at Johns Hopkins, Baltimore, MD
| | - D. Flies
- SKCCC at Johns Hopkins, Baltimore, MD
| | - D. Getnet
- SKCCC at Johns Hopkins, Baltimore, MD
| | | | - C. Maris
- SKCCC at Johns Hopkins, Baltimore, MD
| | - J. Grosso
- SKCCC at Johns Hopkins, Baltimore, MD
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