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Roy T, Seth A, Shafi H, Reddy DVS, Raman SK, Chakradhar JVUS, Verma S, Bharti R, Azmi L, Ray L, Misra A. Transcriptional regulation of suppressors of cytokine signaling during infection with Mycobacterium tuberculosis in human THP-1-derived macrophages and in mice. Microbes Infect 2024; 26:105282. [PMID: 38135025 DOI: 10.1016/j.micinf.2023.105282] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
Mycobacterium tuberculosis (Mtb) infection leads to upregulation of Suppressors of Cytokine signaling (SOCS) expression in host macrophages (Mϕ). SOCS proteins inhibit cytokine signaling by negatively regulating JAK/STAT. We investigated this host-pathogen dialectic at the level of transcription. We used phorbol-differentiated THP-1 Mϕ infected with Mtb to investigate preferential upregulation of some SOCS isoforms that are known to inhibit signaling by IFN-γ, IL-12, and IL-6. We examined time kinetics of likely transcription factors and signaling molecules upstream of SOCS transcription, and survival of intracellular Mtb following SOCS upregulation. Our results suggest a plausible mechanism that involves PGE2 secretion during infection to induce the PKA/CREB axis, culminating in nuclear translocation of C/EBPβ to induce expression of SOCS1. Mtb-infected Mϕ secreted IL-10, suggesting a mechanism of induction of STAT3, which may subsequently induce SOCS3. We provide evidence of temporal variation in SOCS isoform exspression and decay. Small-interfering RNA-mediated knockdown of SOCS1 and SOCS3 restored the pro-inflammatory milieu and reduced Mtb viability. In mice infected with Mtb, SOCS isoforms persisted across Days 28-85 post infection. Our results suggest that differential temporal regulation of SOCS isoforms by Mtb drives the host immune response towards a phenotype that facilitates the pathogen's survival.
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Affiliation(s)
- Trisha Roy
- CSIR- Central Drug Research Institute, Lucknow 226031, U.P, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 200102, India
| | - Anuradha Seth
- CSIR- Central Drug Research Institute, Lucknow 226031, U.P, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 200102, India
| | - Hasham Shafi
- CSIR- Central Drug Research Institute, Lucknow 226031, U.P, India
| | - D V Siva Reddy
- CSIR- Central Drug Research Institute, Lucknow 226031, U.P, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 200102, India
| | | | | | - Sonia Verma
- CSIR- Central Drug Research Institute, Lucknow 226031, U.P, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 200102, India
| | - Reena Bharti
- CSIR- Central Drug Research Institute, Lucknow 226031, U.P, India
| | - Lubna Azmi
- CSIR- Central Drug Research Institute, Lucknow 226031, U.P, India
| | - Lipika Ray
- CSIR- Central Drug Research Institute, Lucknow 226031, U.P, India
| | - Amit Misra
- CSIR- Central Drug Research Institute, Lucknow 226031, U.P, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 200102, India.
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Singh AK, Gangakhedkar R, Thakur HS, Raman SK, Patil SA, Jain V. Mycobacteriophage D29 Lysin B exhibits promising anti-mycobacterial activity against drug-resistant Mycobacterium tuberculosis. Microbiol Spectr 2023; 11:e0459722. [PMID: 37800970 PMCID: PMC10714809 DOI: 10.1128/spectrum.04597-22] [Citation(s) in RCA: 1] [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] [Received: 11/11/2022] [Accepted: 08/18/2023] [Indexed: 10/07/2023] Open
Abstract
IMPORTANCE To combat the rapidly emerging drug-resistant M. tuberculosis, it is now essential to look for alternative therapeutics. Mycobacteriophages can be considered as efficient therapeutics due to their natural ability to infect and kill mycobacteria including M. tuberculosis. Here, we have exploited the mycolyl-arabinogalactan esterase property of LysB encoded from mycobacteriophage D29. This study is novel in terms of targeting a multi-drug-resistant pathogenic strain of M. tuberculosis with LysB and also examining the combination of anti-TB drugs and LysB. All the experiments include external administration of LysB. Therefore, the remarkable lytic activity of LysB overcomes the difficulty to enter the complex cell envelope of mycobacteria. Targeting the intracellularly located M. tuberculosis by LysB and non-toxicity to macrophages take the process of the development of LysB as a drug one step ahead, and also, the interaction studies with rifampicin and isoniazid will help to form a new treatment regimen against tuberculosis.
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Affiliation(s)
- Amit Kumar Singh
- Experimental Animal Facility, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, M. Miyazaki Marg, Tajganj, Agra, Uttar Pradesh, India
| | - Rutuja Gangakhedkar
- Microbiology and Molecular Biology Laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal, India
| | - Hemant Singh Thakur
- Experimental Animal Facility, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, M. Miyazaki Marg, Tajganj, Agra, Uttar Pradesh, India
| | - Sunil Kumar Raman
- Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Shripad A. Patil
- Experimental Animal Facility, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, M. Miyazaki Marg, Tajganj, Agra, Uttar Pradesh, India
| | - Vikas Jain
- Microbiology and Molecular Biology Laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal, India
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Davuluri KS, Singh AK, Singh AV, Chaudhary P, Raman SK, Kushwaha S, Singh SV, Chauhan DS. Atorvastatin Potentially Reduces Mycobacterial Severity through Its Action on Lipoarabinomannan and Drug Permeability in Granulomas. Microbiol Spectr 2023; 11:e0319722. [PMID: 36719189 PMCID: PMC10100658 DOI: 10.1128/spectrum.03197-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 08/14/2022] [Accepted: 11/05/2022] [Indexed: 02/01/2023] Open
Abstract
The majority of preclinical research has shown that Mycobacterium tuberculosis can modify host lipids in various ways. To boost its intramacrophage survival, M. tuberculosis causes host lipids to build up, resulting in the development of lipid-laden foam cells. M. tuberculosis binds to and enters the macrophage via the cell membrane cholesterol. Aggregation of cholesterol in the cell wall of M. tuberculosis and an increase in vascularity at the granuloma site reduce the permeability of rifampicin and isoniazid concentrations. However, very few studies have assessed the effect of statins on drug penetration. Here, we used atorvastatin, a 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor, to observe its effect on the bacterial burden by increasing the drug concentration at the infection site. We looked into how atorvastatin could be used in conjunction with first-line drugs to promote drug permeation. In this study, we detected an accumulation of drugs at the peripheral sites of the lungs and impaired drug distribution to the diseased sites. The efficacy of antituberculosis drugs, with atorvastatin as an adjunct, on the viability of M. tuberculosis cells was demonstrated. A nontoxic statin dosage established phenotypic and normal granuloma vasculature and showed an additive effect with rifampicin and isoniazid. Our data show that statins help to reduce the tuberculosis bacterial burden. Our findings reveal that the bacterial load is connected with impaired drug permeability resulting from lipid accumulation in the bacterial cell wall. Statin therapy combined with antituberculosis medications have the potential to improve treatment in tuberculosis patients. IMPORTANCE Mycobacterium tuberculosis binds to and enters the macrophage via the cell membrane cholesterol. M. tuberculosis limits phagosomal maturation and activation without engaging in phagocytosis. Aggregation of cholesterol in the cell wall of M. tuberculosis and an increase in the vascularity at the granuloma site reduce the permeability of rifampicin and isoniazid concentrations. However, very few studies have assessed the effect of statins on drug penetration, which can be increased through a reduction in cholesterol and vascularity. Herein, we used atorvastatin, a 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor, to observe its effect on bacterial burden through increasing the drug concentration at the infection site. Our main research goal is to diminish mycobacterial dissemination and attenuate bacterial growth by increasing drug permeability.
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Affiliation(s)
- Kusuma Sai Davuluri
- Department of Microbiology and Molecular Biology, ICMR, National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, India
| | - Amit Kumar Singh
- Department of Microbiology and Molecular Biology, ICMR, National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, India
| | - Ajay Vir Singh
- Department of Microbiology and Molecular Biology, ICMR, National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, India
| | - Pooja Chaudhary
- Department of Microbiology and Molecular Biology, ICMR, National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, India
| | - Sunil Kumar Raman
- Division of Pharmaceutics and Pharmacokinetics, CSIR, Central Drug Research Institute, Lucknow, India
| | - Shweta Kushwaha
- Department of Microbiology and Molecular Biology, ICMR, National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, India
| | | | - Devendra Singh Chauhan
- Department of Microbiology and Molecular Biology, ICMR, National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, India
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Reddy DVS, Shafi H, Bharti R, Roy T, Verma S, Raman SK, Verma K, Azmi L, Ray L, Singh J, Singh AK, Mugale MN, Misra A. Preparation and Evaluation of Low-Dose Calcitriol Dry Powder Inhalation as Host-Directed Adjunct Therapy for Tuberculosis. Pharm Res 2022; 39:2621-2633. [PMID: 35962268 PMCID: PMC9374297 DOI: 10.1007/s11095-022-03360-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/05/2022] [Indexed: 11/24/2022]
Abstract
Background It is unclear whether Vitamin D is efficacious as a host-directed therapy (HDT) for patients of tuberculosis (TB). We investigated pulmonary delivery of the active metabolite of Vitamin D3, i.e., 1, 25-dihydroxy vitamin D3 (calcitriol) in a mouse model of infection with Mycobacterium tuberculosis (Mtb). Methods We optimized a spray drying process to prepare a dry powder inhalation (DPI) of calcitriol using a Quality by Design (QbD) approach. We then compared outcomes when Mtb-infected mice were treated with inhaled calcitriol at 5 ng/kg as a stand-alone intervention versus DPI as adjunct to standard oral anti-tuberculosis therapy (ATT). Results The DPI with or without concomitant ATT markedly improved the morphology of the lungs and mitigated histopathology in both the lungs and the spleens. The number of nodular lesions on the lung surface decreased from 43.7 ± 3.1 to 22.5 ± 3.9 with the DPI alone and to 9.8 ± 2.5 with DPI + ATT. However, no statistically significant induction of host antimicrobial peptide cathelicidin or reduction in bacterial burden was seen with the DPI alone. DPI + ATT did not significantly reduce the bacterial burden in the lungs compared to ATT alone. Conclusions We concluded that HDT using the low dose calcitriol DPI contributed markedly to mitigation of pathology, but higher dose may be required to evoke significant induction of bactericidal host response and bactericidal activity in the lung.
Supplementary Information The online version contains supplementary material available at 10.1007/s11095-022-03360-5.
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Affiliation(s)
- D V Siva Reddy
- CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, U.P, India
| | - Hasham Shafi
- CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Reena Bharti
- CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Trisha Roy
- CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, U.P, India
| | - Sonia Verma
- CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, U.P, India
| | | | - Khushboo Verma
- CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, U.P, India
| | - Lubna Azmi
- CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Lipika Ray
- CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Jyotsna Singh
- CSIR-Indian Institute of Toxicology Research, Lucknow, 226001, India
| | - Amit Kumar Singh
- National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Agra, 282004, India
| | - Madhav N Mugale
- CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Amit Misra
- CSIR-Central Drug Research Institute, Lucknow, 226031, India.
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Abstract
PURPOSE To assess the incidence and characteristics of early postoperative complications in patients following neurosurgical procedures. METHODS All patients undergoing neurosurgery during a four month period were followed postoperatively for up to four hours in the post anesthetic care unit or intensive care unit. Patient information and all complications were documented by the investigators on a standardized form. Complications were classified as respiratory, cardiovascular, nausea and vomiting, shivering and other. Risk factors analyzed for the occurrence of complications included age, sex, ASA status, type of surgery, elective or emergency surgery and postoperative placement. RESULTS Four hundred eighty six adult patients were followed, but in 55 patients the trachea remained intubated during the four hour study period and they were eliminated from the analysis of postoperative complications. At least one complication occurred in 54.5% of the remaining 431 patients. Respiratory problems occurred in 2.8%, trauma to the airway in 4.4%, cardiovascular complications in 6.7%, neurological in 5.7% and nausea and/or vomiting in 38%. The highest incidence of patients with complications was during spine (65%) and vascular (66%) surgery, compared with tumour (47%) and other (43%) surgery, P < 0.05. Other risk factors included age < 70 yr for nausea and vomiting (P < 0.02), and elective surgery for spine and vascular surgery (P < 0.001). CONCLUSION There was a high incidence of early postoperative complications in neurosurgical patients. The most common problem was nausea and vomiting especially in the younger patient undergoing elective spine surgery.
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Affiliation(s)
- P H Manninen
- Department of Anesthesia, University of Toronto, Toronto Hospital, Ontario, Canada.
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Raman SK, San WM. Fasciculations, myalgia and biochemical changes following succinylcholine with atracurium and lidocaine pretreatment. Can J Anaesth 1997; 44:498-502. [PMID: 9161744 DOI: 10.1007/bf03011938] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [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: 02/04/2023] Open
Abstract
PURPOSE To determine the attenuation in the incidence of myalgia, fasciculations and changes in serum potassium and creatinine kinase concentrations when atracurium and lidocaine were used in combination and separately as pretreatment before succinylcholine. METHODS In a prospective, double blind randomized study, 80 ASA 1 patients 20-50 yr were assigned to one of four groups. Anaesthesia was induced with thiopentone and fentanyl. Group C received placebo pretreatment before 1.5 mg.kg-1 succinylcholine; Group A 0.05 mg.kg-1 atracurium three minutes before; Group L, 1.5 mg.kg-1 lidocaine 30 sec before; and group AL both atracurium and lidocaine. Serum potassium five minutes after succinylcholine, and creatinine kinase 24 hr after operation were measured and the increases from preinduction values were compared. Fasciculations and postoperative myalgia at 24 and 48 hr were recorded. Patients received iv meperidine or po paracetamol for postoperative analgesia. RESULTS The increase in serum potassium concentration (0.36 +/- 0.23 mEq.l-1) was not attenuated by any regimen (P < 0.05). The incidence of fasciculations (P < 0.05) and the increase in creatinine kinase (P < 0.01) was less in the atracurium (40%; 20.93 IU.l-1) and atracurium-lidocaine (30%; 22.85 IU.l-1) than in the lidocaine (85%; 45.01 IU.l-1) and control (100%; 56.5 IU.l-1) groups. Postoperative myalgia on Days 1 and 2 was lowest (P < 0.05) in the atracurium-lidocaine group (5%; 0%) followed by the atracurium (35%; 25%) and lidocaine (30%; 35%) groups and highest in the control (75%; 65%). CONCLUSION Atracurium and lidocaine individually reduce postoperative myalgia, with further decrease occurring when used together.
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Affiliation(s)
- S K Raman
- Department of Anaesthesia, Tan Tock Seng Hospital, Singapore
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