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Pandey SK, Anand U, Siddiqui WA, Tripathi R. Drug Development Strategies for Malaria: With the Hope for New Antimalarial Drug Discovery—An Update. Adv Med 2023; 2023:5060665. [PMID: 36960081 PMCID: PMC10030226 DOI: 10.1155/2023/5060665] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 02/27/2023] [Accepted: 03/08/2023] [Indexed: 03/15/2023] Open
Abstract
Malaria continued to be a deadly situation for the people of tropical and subtropical countries. Although there has been a marked reduction in new cases as well as mortality and morbidity rates in the last two decades, the reporting of malaria caused 247 million cases and 619000 deaths worldwide in 2021, according to the WHO (2022). The development of drug resistance and declining efficacy against most of the antimalarial drugs/combination in current clinical practice is a big challenge for the scientific community, and in the absence of an effective vaccine, the problem becomes worse. Experts from various research organizations worldwide are continuously working hard to stop this disaster by employing several strategies for the development of new antimalarial drugs/combinations. The current review focuses on the history of antimalarial drug discovery and the advantages, loopholes, and opportunities associated with the common strategies being followed for antimalarial drug development.
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Affiliation(s)
- Swaroop Kumar Pandey
- 1Department of Life Sciences, The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Uttpal Anand
- 2Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Waseem A. Siddiqui
- 3Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202001, Uttar Pradesh, India
| | - Renu Tripathi
- 4Department of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute, Lucknow 226031, Uttar Pradesh, India
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Johnson J, Kim SY, Sam PK, Asokan R, Cari EL, Bales ES, Luu TH, Perez L, Kallen AN, Nel-Themaat L, Polotsky AJ, Post MD, Orlicky DJ, Jordan KR, Bitler BG. Expression and T cell regulatory action of the PD-1 immune checkpoint in the ovary and fallopian tube. Am J Reprod Immunol 2023; 89:e13649. [PMID: 36394352 PMCID: PMC10559227 DOI: 10.1111/aji.13649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 10/06/2022] [Accepted: 10/31/2022] [Indexed: 11/19/2022] Open
Abstract
PROBLEM Immune cell trafficking and surveillance within the ovary and fallopian tube are thought to impact fertility and also tumorigenesis in those organs. However, little is known of how native cells of the ovary and fallopian tube interact with resident immune cells. Interaction of the Programmed Cell Death Protein-1 (PD-1/PDCD-1/CD279) checkpoint with PD-L1 is associated with downregulated immune response. We have begun to address the question of whether PD-1 ligand or its receptors (PD-L1/-L2) can regulate immune cell function in these tissues of the female reproductive tract. METHOD OF STUDY PD-1 and ligand protein expression was evaluated in human ovary and fallopian tube specimens, the latter of which included stages of tubal cell transformation and early tumorigenesis. Ovarian expression analysis included the determination of the proteins in human follicular fluid (HFF) specimens collected during in vitro fertilization procedures. Finally, checkpoint bioactivity of HFF was determined by treatment of separately-isolated human T cells and the measurement of interferon gamma (IFNγ). RESULTS We show that membrane bound and soluble variants of PD-1 and ligands are expressed by permanent constituent cell types of the human ovary and fallopian tube, including granulosa cells and oocytes. PD-1 and soluble ligands were present in HFF at bioactive levels that control T cell PD-1 activation and IFNγ production; full-length checkpoint proteins were found to be highly enriched in HFF exosome fractions. CONCLUSION The detection of PD-1 checkpoint proteins in the human ovary and fallopian tube suggests that the pathway is involved in immunomodulation during folliculogenesis, the window of ovulation, and subsequent egg and embryo immune-privilege. Immunomodulatory action of receptor and ligands in HFF exosomes is suggestive of an acute checkpoint role during ovulation. This is the first study in the role of PD-1 checkpoint proteins in human tubo-ovarian specimens and the first examination of its potential regulatory action in the contexts of normal and assisted reproduction.
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Affiliation(s)
- Joshua Johnson
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Building RC2, Room P15 3103, Mail Stop 8613, Aurora, Colorado 80045
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, 12631 East 17th Avenue, Room 4409, B198-3 Aurora, Colorado 80045
| | - So-Youn Kim
- Olson Center for Women’s Health, Department of Obstetrics and Gynecology, College of Medicine, University of Nebraska Medical Center, 985860 Nebraska Medical Center, Omaha, Nebraska 68198
| | | | - Rengasamy Asokan
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Building RC2, Room P15 3103, Mail Stop 8613, Aurora, Colorado 80045
| | - Evelyn Llerena Cari
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Building RC2, Room P15 3103, Mail Stop 8613, Aurora, Colorado 80045
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, 12631 East 17th Avenue, Room 4409, B198-3 Aurora, Colorado 80045
| | - Elise S. Bales
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Building RC2, Room P15 3103, Mail Stop 8613, Aurora, Colorado 80045
| | - Thanh-Ha Luu
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Building RC2, Room P15 3103, Mail Stop 8613, Aurora, Colorado 80045
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, 12631 East 17th Avenue, Room 4409, B198-3 Aurora, Colorado 80045
| | | | | | - Liesl Nel-Themaat
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, 12631 East 17th Avenue, Room 4409, B198-3 Aurora, Colorado 80045
- Shady Grove Fertility – Colorado, Denver, CO
| | - Alex J. Polotsky
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Building RC2, Room P15 3103, Mail Stop 8613, Aurora, Colorado 80045
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, 12631 East 17th Avenue, Room 4409, B198-3 Aurora, Colorado 80045
- Shady Grove Fertility – Colorado, Denver, CO
| | - Miriam D. Post
- University of Colorado Anschutz Medical Campus, Department of Pathology, Mailstop F768, 12605 East 16th Avenue, Aurora, Colorado 80045
| | - David J. Orlicky
- University of Colorado Anschutz Medical Campus, Department of Pathology, Mailstop F768, 12605 East 16th Avenue, Aurora, Colorado 80045
| | - Kimberly R. Jordan
- University of Colorado Anschutz Medical Campus, Department of Immunology and Microbiology, Human Immunology and Immunotherapy Initiative, Human Immune Monitoring Shared Resource, RC1-North, 8113, Aurora, Colorado 80045
| | - Benjamin G. Bitler
- University of Colorado Anschutz Medical Campus, Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Building RC2, Room P15 3103, Mail Stop 8613, Aurora, Colorado 80045
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Lu J, Wu J, Mao L, Xu H, Wang S. Revisiting PD-1/PD-L pathway in T and B cell response: Beyond immunosuppression. Cytokine Growth Factor Rev 2022; 67:58-65. [PMID: 35850949 DOI: 10.1016/j.cytogfr.2022.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 12/12/2022]
Abstract
The regulation of T cell response depends on co-inhibitory pathways that serve to control immune-mediated tissue damage and resolve inflammation by modulating the magnitude and duration of immune response. In this process, the axis of T-cell-expressed programmed death-1 (PD-1) and its ligands (PD-L1 and PD-L2) play a key role. While the PD-1/PD-L pathway has received considerable attention for its role in the maintenance of T cell exhaustion in cancer and chronic infection, the PD-1/PD-L pathway also plays diverse roles in regulating host immunity beyond T cell exhaustion. In this review, we will discuss emerging concepts in co-stimulatory functions of PD-1/PD-L pathway on T cell- and B cell response and explore the potential underlying mechanisms. In addition, based on the elevated expression of PD-1 and its ligands in local inflamed tissues, we further discussed the role of PD-1/PD-L pathway in autoimmune diseases.
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Affiliation(s)
- Jian Lu
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China; Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Jing Wu
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Lingxiang Mao
- Department of Laboratory Medicine, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, China.
| | - Huaxi Xu
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Shengjun Wang
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China; Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China
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Xie J, Chen CW, Sun Y, Laurie SJ, Zhang W, Otani S, Martin GS, Coopersmith CM, Ford ML. Increased attrition of memory T cells during sepsis requires 2B4. JCI Insight 2019; 4:126030. [PMID: 31045575 DOI: 10.1172/jci.insight.126030] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 02/19/2019] [Indexed: 12/21/2022] Open
Abstract
Recent seminal studies have revealed that laboratory mice differ from adult humans with regard to the frequency, number, and distribution of memory T cells. Because our data show that memory T cells are more susceptible to sepsis-induced death than naive T cells, in this study we developed a model in which mice possess a memory T cell compartment more similar to that of adult humans, to better study immune responses during sepsis in the more physiologically relevant context of high frequencies of memory T cells. Using this model, we found that CD44hi memory T cells significantly upregulated the coinhibitory molecule 2B4 during sepsis, and 2B4+ memory T cells coexpressed markers of both activation and exhaustion. Genetic deficiency in 2B4 resulted in decreased mortality during sepsis. Mechanistically, this decreased mortality was associated with reduced caspase-3/7+ apoptotic T cells in 2B4-/- relative to WT, septic hosts. These results were corroborated by analysis of PBMCs isolated from human patients with sepsis, which showed increased frequencies of caspase-3/7+ apoptotic cells among 2B4+ relative to 2B4- T cells. Thus, 2B4 plays a critical role in sepsis-induced apoptosis in both murine memory T cells and those isolated from human patients with sepsis.
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Affiliation(s)
| | | | | | | | | | | | - Gregory S Martin
- Division of Pulmonary, Allergy, Critical Care and Sleep, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Craig M Coopersmith
- Department of Surgery, and.,Emory Critical Care Center, Department of Surgery, and
| | - Mandy L Ford
- Department of Surgery, and.,Emory Transplant Center, Division of Transplantation, Department of Surgery, Emory University School of Medicine, Atlanta, Georgia, USA
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Weber M, Wehrhan F, Baran C, Agaimy A, Büttner-Herold M, Kesting M, Ries J. Prognostic significance of PD-L2 expression in patients with oral squamous cell carcinoma-A comparison to the PD-L1 expression profile. Cancer Med 2019; 8:1124-1134. [PMID: 30659749 PMCID: PMC6434218 DOI: 10.1002/cam4.1929] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 11/01/2018] [Accepted: 11/26/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Despite the observed association of increased PD-L1 expression in peripheral blood of oral squamous cell carcinoma (OSCC) patients with histomorphologic parameters, the role of the PD1 ligands-PD-L1 and PD-L2-is insufficiently understood. Aim of the study was to investigate whether the alterations of PD-L1 and PD-L2 expression in blood are associated with survival and could serve as immune monitoring parameter. Moreover, it should be analyzed if PD-L2 is differentially expressed in tissue and blood samples of OSCC patients compared to healthy controls and if there is an association of PD-L2 expression with histomorphologic and prognostic tumor parameters. METHODS PD-L2 mRNA expression was analyzed in tumors and healthy oral mucosa specimens and in corresponding peripheral blood samples of 48 OSCC patients and 26 healthy controls using RT-qPCR. A cutoff point (COP) was determined and a chi-square test (χ2 test) was carried out. Survival analysis of PD-L2 and previously reported PD-L1 expression data was performed using Kaplan-Meier analysis (Log-rank test). RESULTS PD-L2 expression in tissue samples was significantly (P < 0.001) higher in OSCC patients compared to healthy controls. A significant association of PD-L2 expression above the COP (positive) with malignancy was ascertained (P < 0.001). A significant (P = 0.01) association of previously reported PD-L1 expression rates in peripheral blood with survival could be shown. CONCLUSION Peripheral blood PD-L1 expression might be a prognostic marker for OSCC patients and a possible parameter to monitor immune dysfunction in malign diseases. In the peripheral blood, PD-L1 might be more relevant for immune tolerance than PD-L2. Local PD-L2 expression in tissue samples might be useful as a diagnostic parameter for malignancy and could contribute to the immunosuppressive local microenvironment in OSCC.
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Affiliation(s)
- Manuel Weber
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Falk Wehrhan
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Christoph Baran
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Abbas Agaimy
- Institute of Pathology, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Maike Büttner-Herold
- Institute of Pathology, Department of Nephropathology, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Marco Kesting
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Jutta Ries
- Department of Oral and Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
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