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Cortes-Hernández U, Lizardi-Aguilera TM, Noriega-Mejía BJ, González-Macías J, García-Quiroz J, Díaz L, Larrea F, Avila E. Prostaglandin E 2 suppresses KCNH1 gene expression and inhibits the proliferation of CaSki cervical cells through its four prostanoid PTGER subtypes. Gene 2025; 933:148997. [PMID: 39419236 DOI: 10.1016/j.gene.2024.148997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 09/28/2024] [Accepted: 10/09/2024] [Indexed: 10/19/2024]
Abstract
The main risk factor for cervical cancer is the persistent infection of high-risk HPV subtypes, notably HPV16. Another contributing factor is proinflammatory prostaglandin E2 (PGE2), a lipid abundantly found in seminal fluid. PGE2, along with its receptors (PTGER1-4), contributes to cancer development; however, its specific role in the proliferation of cervical cancer models with high HPV16 copy numbers remains unclear. In this study, we investigated the effects of PGE2 on the proliferation of CaSki cells, a cell line with a high HPV16 viral load. Surprisingly, PGE2 inhibited CaSki cell proliferation, while it increased the proliferation of SiHa, HeLa, and C-33 A cervical cancer cells. The effect of PGE2 on CaSki cell proliferation was specific, as estradiol increased cell growth. Furthermore, PGE2 suppressed expression and promoter activity of the cervical tumoral marker KCNH1. To discern the specific role of each receptor in cell proliferation, we generated stable CaSki cell lines overexpressing each receptor alongside control cells with an empty vector. Notably, PGE2 significantly inhibited cell proliferation in all stable transfected CaSki cells, suppressing oncogenic KCNH1 expression and its promoter activity. In conclusion, our findings indicate that PGE2 inhibits the proliferation of CaSki cervical cancer cells with a high HPV16 load, at least in part, by suppressing the expression of the oncogenic KCNH1 gene.
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Affiliation(s)
- Ulises Cortes-Hernández
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Tomas Misael Lizardi-Aguilera
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Bryan Javier Noriega-Mejía
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Jocelyn González-Macías
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Janice García-Quiroz
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Lorenza Díaz
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Fernando Larrea
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Euclides Avila
- Departamento de Biología de la Reproducción Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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Kim YK, Woo IS, Park CG, Kim A, Choi JD, Son KH, Han KM. Green extraction of prostaglandin analogs in cosmetics using deep eutectic solvents and detection via LC-MS/MS. J Chromatogr A 2025; 1739:465516. [PMID: 39579545 DOI: 10.1016/j.chroma.2024.465516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2024] [Revised: 11/11/2024] [Accepted: 11/12/2024] [Indexed: 11/25/2024]
Abstract
Prostaglandin analogs (bimatoprost, travoprost, tafluprost, etc.) have similar effects to prostaglandins and are effective drugs for treating glaucoma. These compounds exhibit abnormal reactions such as causing eyelash growth, with several cases being reported of people purchasing them to increase eyelash growth; however, some cases have reported side effects such as pigmentation and dry eyes. In the Republic of Korea, cosmetics are not medicines for treating diseases; therefore, cosmetics cannot contain drugs or have labels that could mislead people. However, there are cases in which products claim to elongate and enrich eyelashes. Concerns about the abnormal reactions of these products are constantly growing, and the absence of analytical methods for illicit compounds (prostaglandins and their analogs) in cosmetics (eyelash growth serums) renders monitoring challenging. Accordingly, in this study, we sought to develop an LC-MS/MS method for facile and fast analysis of compounds illegally mixed into eyelash growth serums. Green analytical chemistry has recently emerged because of environmental concerns. In line with this trend, we developed an optimal method by comparing the methods mainly used in cosmetic pretreatment (solvent extraction, QuEChERS, and solid phase extraction) with a method using deep eutectic solvents (DESs), which is an eco-friendly solvent. As a result of validation according to the International Conference on Harmonization guidelines, the limit of detection was 0.20-9.34 ng/mL, and the limit of quantification was 0.60-28.31 ng/mL. Recovery, linearity, precision, and accuracy were within acceptable ranges. Additionally, using the Analytical GREEnness calculator and complex green analytical procedure index tools, we confirmed that the method using the DES was greener than the other methods. In this study, we developed an analytical method for illicit compounds contained in eyelash growth serums, offering an eco-friendly approach for the prevention of the distribution of illegal cosmetics.
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Affiliation(s)
- You Kyung Kim
- Advanced Analysis Division, Toxicological Evaluation and Research Department, Ministry of Food and Drug Safety, Osong Health Technology Administration Complex, National Institute of Food and Drug Safety Evaluation, Cheongju-si, Chungcheongbuk-do 28159, Republic of Korea
| | - In Suk Woo
- Advanced Analysis Division, Toxicological Evaluation and Research Department, Ministry of Food and Drug Safety, Osong Health Technology Administration Complex, National Institute of Food and Drug Safety Evaluation, Cheongju-si, Chungcheongbuk-do 28159, Republic of Korea
| | - Chae Gyeong Park
- Advanced Analysis Division, Toxicological Evaluation and Research Department, Ministry of Food and Drug Safety, Osong Health Technology Administration Complex, National Institute of Food and Drug Safety Evaluation, Cheongju-si, Chungcheongbuk-do 28159, Republic of Korea
| | - Aeseul Kim
- Advanced Analysis Division, Toxicological Evaluation and Research Department, Ministry of Food and Drug Safety, Osong Health Technology Administration Complex, National Institute of Food and Drug Safety Evaluation, Cheongju-si, Chungcheongbuk-do 28159, Republic of Korea
| | - Jang Duck Choi
- Advanced Analysis Division, Toxicological Evaluation and Research Department, Ministry of Food and Drug Safety, Osong Health Technology Administration Complex, National Institute of Food and Drug Safety Evaluation, Cheongju-si, Chungcheongbuk-do 28159, Republic of Korea
| | - Kyung Hun Son
- Advanced Analysis Division, Toxicological Evaluation and Research Department, Ministry of Food and Drug Safety, Osong Health Technology Administration Complex, National Institute of Food and Drug Safety Evaluation, Cheongju-si, Chungcheongbuk-do 28159, Republic of Korea
| | - Kyoung-Moon Han
- Advanced Analysis Division, Toxicological Evaluation and Research Department, Ministry of Food and Drug Safety, Osong Health Technology Administration Complex, National Institute of Food and Drug Safety Evaluation, Cheongju-si, Chungcheongbuk-do 28159, Republic of Korea.
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3
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Majima M, Matsuda Y, Watanabe SI, Ohtaki Y, Hosono K, Ito Y, Amano H. Prostanoids Regulate Angiogenesis and Lymphangiogenesis in Pathological Conditions. Cold Spring Harb Perspect Med 2024; 14:a041182. [PMID: 38565267 PMCID: PMC11610754 DOI: 10.1101/cshperspect.a041182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Angiogenesis, the formation of new blood vessels from the preexistent microvasculature, is an essential component of wound repair and tumor growth. Nonsteroidal anti-inflammatory drugs that suppress prostanoid biosynthesis are known to suppress the incidence and progression of malignancies including colorectal cancers, and also to delay the wound healing. However, the precise mechanisms are not fully elucidated. Accumulated results obtained from prostanoid receptor knockout mice indicate that a prostaglandin E-type receptor signaling EP3 in the host microenvironment is critical in tumor angiogenesis inducing vascular endothelial growth factor A (VEGF-A). Further, lymphangiogenesis was also enhanced by EP signaling via VEGF-C/D inductions in pathological settings. These indicate the importance of EP receptor to facilitate angiogenesis and lymphangiogenesis in vivo. Prostanoids act beyond their commonly understood activities in smooth muscle contraction and vasoactivity, both of which are quick responses elicited within several seconds on stimulations. Prostanoid receptor signaling will be a potential therapeutic target for disease conditions related to angiogenesis and lymphangiogenesis.
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Affiliation(s)
- Masataka Majima
- Department of Medical Therapeutics, Kanagawa Institute of Technology, 1030 Shimo-Ogino, Atsugi, Kanagawa 243-0292, Japan
- Department of Pharmacology, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
- Department of Molecular Pharmacology, Kitasato University Graduate School of Medical Sciences, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
| | - Yasuhiro Matsuda
- Department of Life Support Engineering, Kanagawa Institute of Technology, 1030 Shimo-Ogino, Atsugi, Kanagawa 243-0292, Japan
| | - Shin-Ichi Watanabe
- Department of Exercise Physiology and Health Sciences, Kanagawa Institute of Technology, 1030 Shimo-Ogino, Atsugi, Kanagawa 243-0292, Japan
| | - Yasuaki Ohtaki
- Department of Human Sensing, Kanagawa Institute of Technology, 1030 Shimo-Ogino, Atsugi, Kanagawa 243-0292, Japan
| | - Kanako Hosono
- Department of Pharmacology, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
- Department of Molecular Pharmacology, Kitasato University Graduate School of Medical Sciences, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
| | - Yoshiya Ito
- Department of Pharmacology, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
- Department of Molecular Pharmacology, Kitasato University Graduate School of Medical Sciences, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
| | - Hideki Amano
- Department of Pharmacology, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
- Department of Molecular Pharmacology, Kitasato University Graduate School of Medical Sciences, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
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Gamba AG, Oakley CA, Ashley IA, Grossman AR, Weis VM, Suggett DJ, Davy SK. Oxylipin Receptors and Their Role in Inter-Partner Signalling in a Model Cnidarian-Dinoflagellate Symbiosis. Environ Microbiol 2024; 26:e70015. [PMID: 39702992 DOI: 10.1111/1462-2920.70015] [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: 10/01/2024] [Revised: 11/07/2024] [Accepted: 11/29/2024] [Indexed: 12/21/2024]
Abstract
Oxylipin signalling is central in biology, mediating processes such as cellular homeostasis, inflammation and molecular signalling. It may also facilitate inter-partner communication in the cnidarian-dinoflagellate symbiosis, though this aspect remains understudied. In this study, four oxylipin receptors were characterised using immunohistochemistry and immunoblotting in the sea anemone Exaiptasia diaphana ('Aiptasia'): Prostaglandin E2 receptor 2 (EP2) and 4 (EP4), Transient Receptor Potential cation channel A1 (TRPA1) and Glutamate Receptor Ionotropic, Kainate 2 (GRIK2). Receptor abundance and localisation were compared between aposymbiotic anemones and symbiotic anemones hosting either native Breviolum minutum or non-native Durusdinium trenchii. All receptors were localised to the putative symbiosome of freshly isolated symbionts, suggesting a role in host-symbiont crosstalk. EP2, EP4 and TRPA1 abundance decreased in the gastrodermis of anemones hosting B. minutum, indicating potential downregulation of pathways mediated by these receptors. In contrast, GRIK2 abundance increased in anemones hosting D. trenchii in both the epidermis and gastrodermis; GRIK2 acts as a chemosensor of potential pathogens in other systems and could play a similar role here given D. trenchii's reputation as a sub-optimal partner for Aiptasia. This study contributes to the understanding of oxylipin signalling in the cnidarian-dinoflagellate symbiosis and supports further exploration of host-symbiont molecular signalling.
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Affiliation(s)
- Andrea G Gamba
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Clinton A Oakley
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Immy A Ashley
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Arthur R Grossman
- Department of Plant Biology, Carnegie Institution for Science, Stanford, California, USA
| | - Virginia M Weis
- Department of Integrative Biology, Oregon State University, Corvallis, Oregon, USA
| | - David J Suggett
- KAUST Reefscape Restoration Initiative (KRRI) and Red Sea Research Centre (RSRC), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Simon K Davy
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
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5
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Srour E, Martin N, Drullion C, De Schutter C, Giroud J, Pioger A, Deslé J, Saas L, Nassour J, Théry J, Decanter G, Penel N, Vercamer C, Salazar-Cardozo C, Abbadie C, Pluquet O. Prostaglandin E 2 regulates senescence and post-senescence neoplastic escape in primary human keratinocytes. Aging (Albany NY) 2024; 16:13201-13224. [PMID: 39560493 DOI: 10.18632/aging.206149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 10/15/2024] [Indexed: 11/20/2024]
Abstract
Aging of the epidermis partially occurs as a consequence of epidermal cell senescence, a non-proliferative state in which cells remain metabolically active and acquire changes in their secretome. We previously reported that senescent normal human epidermal keratinocytes (NHEKs) have two opposite outcomes: either cell death by excess of autophagic activity or escape from senescence to give rise to post-senescence neoplastic emerging (PSNE) cells. In this study, we investigated the role of PTGS2, the inducible enzyme of the prostaglandin biosynthesis pathway, in the onset of NHEK senescence and in the switch from senescence to pre-transformation. We provide evidence that the PTGS2/PGE2/EP4 pathway plays a critical role in NHEK senescence as well as in senescence escape. We show that treating proliferating NHEKs with prostaglandin E2 (PGE2) or with an agonist of one of its receptors, EP4, induced the establishment of the senescent phenotype, according to several markers including the senescence-associated β-galactosidase activity. Conversely, treating already senescent NHEKs with an antagonist of EP4, or knocking-down PTGS2 by siRNA resulted in the decrease of the percentage of senescence-associated β-galactosidase-positive cells. We also demonstrate that the PSNE frequency was significantly decreased upon PTGS2 silencing by siRNA, pharmacological PTGS2 inhibition, or treatment by an EP4 antagonist, while on the contrary treatments with PGE2 or EP4 agonist increased the PSNE frequency. These results indicate that the PTGS2/PGE2/EP4 pathway is required to induce and maintain the senescent phenotype of NHEKs, and that PGE2 level is a potential determinant of the initial steps of the age-related oncogenic process.
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Affiliation(s)
- Elise Srour
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Nathalie Martin
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Claire Drullion
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Clémentine De Schutter
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Joëlle Giroud
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Adrien Pioger
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Julie Deslé
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Laure Saas
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Joe Nassour
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Julien Théry
- Direction of Clinical Research and Innovation, Oscar Lambret Center, Lille, France
| | | | - Nicolas Penel
- Direction of Clinical Research and Innovation, Oscar Lambret Center, Lille, France
- CHU Lille, ULR 2694 - Metrics: Evaluation des Technologies de Santé et des Pratiques Médicales, University of Lille, Lille, France
| | - Chantal Vercamer
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Clara Salazar-Cardozo
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Corinne Abbadie
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
| | - Olivier Pluquet
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 – U1277 – CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, University of Lille, Lille F-59000, France
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Maddipati KR. Distinct etiology of chronic inflammation - implications on degenerative diseases and cancer therapy. Front Immunol 2024; 15:1460302. [PMID: 39555057 PMCID: PMC11563979 DOI: 10.3389/fimmu.2024.1460302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Accepted: 10/16/2024] [Indexed: 11/19/2024] Open
Abstract
Acute inflammation is elicited by lipid and protein mediators in defense of the host following sterile or pathogen-driven injury. A common refrain is that chronic inflammation is a result of incomplete resolution of acute inflammation and behind the etiology of all chronic diseases, including cancer. However, mediators that participate in inflammation are also essential in homeostasis and developmental biology but without eliciting the clinical symptoms of inflammation. This non-inflammatory physiological activity of the so called 'inflammatory' mediators, apparently under the functional balance with anti-inflammatory mediators, is defined as unalamation (un-ala-mation). Inflammation in the absence of injury is a result of perturbance in unalamation due to a decrease in the anti-inflammatory mediators rather than an increase in the inflammatory mediators and leads to chronic inflammation. This concept on the etiology of chronic inflammation suggests that treatment of chronic diseases is better achieved by stimulating the endogenous anti-inflammatory mediators instead of inhibiting the 'inflammatory' mediator biosynthesis with Non-Steroidal Anti-Inflammatory Drugs (NSAIDs). Furthermore, both 'inflammatory' and anti-inflammatory mediators are present at higher concentrations in the tumor microenvironment compared to normal tissue environments. Since cancer is a proliferative disorder rather than a degenerative disease, it is proposed that heightened unalamation, rather than chronic inflammation, drives tumor growth. This understanding helps explain the inefficacy of NSAIDs as anticancer agents. Finally, inhibition of anti-inflammatory mediator biosynthesis in tumor tissues could imbalance unalamation toward local acute inflammation triggering an immune response to restore homeostasis and away from tumor growth.
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Nakagomi T, Narita A, Nishie H, Nakano-Doi A, Sawano T, Fukuda Y, Matsuyama T. L-PGDS-PGD2-DP1 Axis Regulates Phagocytosis by CD36 + MGs/MΦs That Are Exclusively Present Within Ischemic Areas After Stroke. Cells 2024; 13:1737. [PMID: 39451255 PMCID: PMC11505914 DOI: 10.3390/cells13201737] [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: 08/31/2024] [Revised: 10/01/2024] [Accepted: 10/17/2024] [Indexed: 10/26/2024] Open
Abstract
Brain injuries, such as ischemic stroke, cause cell death. Although phagocytosis of cellular debris is mainly performed by microglia/macrophages (MGs/MΦs), excessive accumulation beyond their phagocytic capacities results in waste product buildup, delaying brain cell regeneration. Therefore, it is essential to increase the potential for waste product removal from damaged brains. Lipocalin-type prostaglandin D synthase (L-PGDS) is the primary synthase for prostaglandin D2 (PGD2) and has been reported as a scavenger of waste products. However, the mechanism by which the L-PGDS-PGD2 axis exerts such an effect remains unelucidated. In this study, using a mouse model of ischemic stroke, we found that L-PGDS and its downstream signaling pathway components, including PGD2 and PGD2 receptor DP1 (but not DP2), were significantly upregulated in ischemic areas. Immunohistochemistry revealed the predominant expression of L-PGDS in the leptomeninges of ischemic areas and high expression levels of DP1 in CD36+ MGs/MΦs that were specifically present within ischemic areas. Furthermore, PGD2 treatment promoted the conversion of MGs/MΦs into CD36+ scavenger types and increased phagocytic activities of CD36+ MGs/MΦs. Because CD36+ MGs/MΦs specifically appeared within ischemic areas after stroke, our findings suggest that the L-PGDS-PGD2-DP1 axis plays an important role in brain tissue repair by regulating phagocytic activities of CD36+ MGs/MΦs.
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Affiliation(s)
- Takayuki Nakagomi
- Institute for Advanced Medical Sciences, Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya 663-8501, Japan; (A.N.); (A.N.-D.)
- Department of Therapeutic Progress in Brain Diseases, Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya 663-8501, Japan;
| | - Aya Narita
- Institute for Advanced Medical Sciences, Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya 663-8501, Japan; (A.N.); (A.N.-D.)
| | - Hideaki Nishie
- Nippon Zoki Pharmaceutical Co., Ltd., 4-2-3 Hirano-machi, Chuo-ku, Osaka 541-0046, Japan; (H.N.); (Y.F.)
| | - Akiko Nakano-Doi
- Institute for Advanced Medical Sciences, Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya 663-8501, Japan; (A.N.); (A.N.-D.)
- Department of Therapeutic Progress in Brain Diseases, Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya 663-8501, Japan;
| | - Toshinori Sawano
- Department of Biomedical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Japan;
| | - Yu Fukuda
- Nippon Zoki Pharmaceutical Co., Ltd., 4-2-3 Hirano-machi, Chuo-ku, Osaka 541-0046, Japan; (H.N.); (Y.F.)
| | - Tomohiro Matsuyama
- Department of Therapeutic Progress in Brain Diseases, Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya 663-8501, Japan;
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Tanabe M, Hosono K, Yamashita A, Ito Y, Majima M, Narumiya S, Kusano C, Amano H. Deletion of TP signaling in macrophages delays liver repair following APAP-induced liver injury by reducing accumulation of reparative macrophage and production of HGF. Inflamm Regen 2024; 44:43. [PMID: 39363292 PMCID: PMC11451145 DOI: 10.1186/s41232-024-00356-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 09/26/2024] [Indexed: 10/05/2024] Open
Abstract
BACKGROUND Acetaminophen (APAP)-induced liver injury is the most common cause of acute liver failure. Macrophages are key players in liver restoration following APAP-induced liver injury. Thromboxane A2 (TXA2) and its receptor, thromboxane prostanoid (TP) receptor, have been shown to be involved in tissue repair. However, whether TP signaling plays a role in liver repair after APAP hepatotoxicity by affecting macrophage function remains unclear. METHODS Male TP knockout (TP-/-) and C57BL/6 wild-type (WT) mice were treated with APAP (300 mg/kg). In addition, macrophage-specific TP-knockout (TP△mac) and control WT mice were treated with APAP. We explored changes in liver inflammation, liver repair, and macrophage accumulation in mice treated with APAP. RESULTS Compared with WT mice, TP-/- mice showed aggravated liver injury as indicated by increased levels of alanine transaminase (ALT) and necrotic area as well as delayed liver repair as indicated by decreased expression of proliferating cell nuclear antigen (PCNA). Macrophage deletion exacerbated APAP-induced liver injury and impaired liver repair. Transplantation of TP-deficient bone marrow (BM) cells to WT or TP-/- mice aggravated APAP hepatotoxicity with suppressed accumulation of macrophages, while transplantation of WT-BM cells to WT or TP-/- mice attenuated APAP-induced liver injury with accumulation of macrophages in the injured regions. Macrophage-specific TP-/- mice exacerbated liver injury and delayed liver repair, which was associated with increased pro-inflammatory macrophages and decreased reparative macrophages and hepatocyte growth factor (HGF) expression. In vitro, TP signaling facilitated macrophage polarization to a reparative phenotype. Transfer of cultured BM-derived macrophages from control mice to macrophage-specific TP-/- mice attenuated APAP-induced liver injury and promoted liver repair. HGF treatment mitigated APAP-induced inflammation and promoted liver repair after APAP-induced liver injury. CONCLUSIONS Deletion of TP signaling in macrophages delays liver repair following APAP-induced liver injury, which is associated with reduced accumulation of reparative macrophages and the hepatotrophic factor HGF. Specific activation of TP signaling in macrophages may be a potential therapeutic target for liver repair and regeneration after APAP hepatotoxicity.
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Affiliation(s)
- Mina Tanabe
- Department of Pharmacology, Kitasato University School of Medicine, Sagamihara, Japan
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan
- Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Kanako Hosono
- Department of Pharmacology, Kitasato University School of Medicine, Sagamihara, Japan
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan
| | - Atsushi Yamashita
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan
| | - Yoshiya Ito
- Department of Pharmacology, Kitasato University School of Medicine, Sagamihara, Japan
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan
| | - Masataka Majima
- Department of Medical Therapeutics, Kanagawa Institute of Technology, Atsugi, Japan
| | - Shuh Narumiya
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Chika Kusano
- Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hideki Amano
- Department of Pharmacology, Kitasato University School of Medicine, Sagamihara, Japan.
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan.
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Sakamoto R, Fujiwara T, Kawano Y, Aikawa S, Inazumi T, Nakayama O, Kawasaki-Shirata Y, Hashimoto-Iwasaki M, Sugimoto T, Tsuchiya S, Nakao S, Takeo T, Hirota Y, Sugimoto Y. Uterine prostaglandin DP receptor-induced upon implantation contributes to decidualization together with EP4 receptor. J Lipid Res 2024; 65:100636. [PMID: 39218218 PMCID: PMC11465058 DOI: 10.1016/j.jlr.2024.100636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 08/20/2024] [Accepted: 08/22/2024] [Indexed: 09/04/2024] Open
Abstract
To investigate the yet-unknown roles of prostaglandins (PGs) in the uterus, we analyzed the expression of various PG receptors in the uterus. We found that three types of Gs-coupled PG receptors, DP, EP2, and EP4, were expressed in luminal epithelial cells from the peri-implantation period to late pregnancy. DP expression was also induced in stromal cells within the mesometrial region, whereas EP4 was expressed in stromal cells within the anti-mesometrial region during the peri-implantation period. The timing of DP induction after embryo attachment correlated well with that of cyclooxygenase-2 (COX-2); however, COX-2-expressing stromal cells were located in the vicinity of the embryo, whereas DP-expressing stromal cells surrounded these cells on the mesometrial side. Specific [3H]PGD2-binding activity was detected in the decidua of uteri, with PGD2 synthesis comparable to that of PGE2 detected in the uteri during the peri-implantation period. Administration of the COX-2-specific inhibitor celecoxib caused adverse effects on decidualization, as demonstrated by the attenuated weight of the implantation sites, which was recovered by the simultaneous administration of a DP agonist. Such a rescuing effect of the DP agonist was mimicked by an EP4 agonist, but not an EP2 agonist. While the importance of DP signaling was shown pharmacologically, DP/EP2 double deficiency did not affect implantation and decidualization, suggesting the contribution of EP4 to these processes. Indeed, administration of an EP4 antagonist substantially affected decidualization in DP/EP2-deficient mice. These results suggest that COX-2-derived PGD2 and PGE2 contribute to decidualization via a coordinated pathway of DP and EP4 receptors.
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Affiliation(s)
- Risa Sakamoto
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takuji Fujiwara
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Yuko Kawano
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Shizu Aikawa
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tomoaki Inazumi
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - On Nakayama
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yukiko Kawasaki-Shirata
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Miho Hashimoto-Iwasaki
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Toshiko Sugimoto
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Soken Tsuchiya
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Satohiro Nakao
- Division of Reproductive Engineering, Center for Animal Resources and Development, Kumamoto University, Kumamoto, Japan
| | - Toru Takeo
- Division of Reproductive Engineering, Center for Animal Resources and Development, Kumamoto University, Kumamoto, Japan
| | - Yasushi Hirota
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yukihiko Sugimoto
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan; Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan.
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Butenas ALE, Parr SK, Flax JS, Carroll RJ, Baranczuk AM, Ade CJ, Hageman KS, Musch TI, Copp SW. Protein kinase C epsilon contributes to chronic mechanoreflex sensitization in rats with heart failure. J Physiol 2024. [PMID: 39269684 DOI: 10.1113/jp287020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Accepted: 08/19/2024] [Indexed: 09/15/2024] Open
Abstract
We investigated second-messenger signalling components linked to the stimulation of Gq protein-coupled receptors (e.g. thromboxane A2 and bradykinin B2 receptors) on the sensory endings of thin fibre muscle afferents in the chronic mechanoreflex sensitization in rats with myocardial infarction-induced heart failure with reduced ejection fraction (HF-rEF). We hypothesized that injection of either the inositol 1,4,5-trisphosphate (IP3) receptor antagonist xestospongin C (5 µg) or the PKCε translocation inhibitor PKCe141 (45 µg) into the arterial supply of the hindlimb would reduce the increase in renal sympathetic nerve activity (RSNA) and mean arterial pressure (MAP) evoked during 30 s of 1 Hz dynamic hindlimb muscle stretch in decerebrate, unanaesthetized HF-rEF rats but not sham-operated controls (SHAM). Ejection fraction was significantly reduced in HF-rEF (45 (19)%) compared to SHAM (80 (9)%; P < 0.001) rats. In HF-rEF rats (n = 3M/2F), IP3 receptor blockade had no effect on the peak ΔRSNA (pre: 99 (74)%; post: 133 (79)%; P = 0.974) or peak ΔMAP response to stretch (peak ΔMAP: pre: 32 (14) mmHg; post: 36 (21) mmHg; P = 0.719). Conversely, in another group of HF-rEF rats (n = 4M/3F), the PKCε translocation inhibitor reduced the peak ΔRSNA (pre: 110 (77)%; post: 62 (58)%; P = 0.029) and peak ΔMAP response to stretch (pre: 30 (20) mmHg; post: 17 (16) mmHg; P = 0.048). In SHAM counterparts, neither drug affected the mechanoreflex responses. Our findings highlight PKCε, but not IP3 receptors, as a significant second-messenger in the chronic mechanoreflex sensitization in HF-rEF which may play a crucial role in the exaggerated sympathetic response to exercise in this patient population. KEY POINTS: Skeletal muscle contraction results in an exaggerated reflex increase in sympathetic nerve activity in heart failure patients with reduced ejection fraction (HF-rEF) compared to healthy individuals, contributing to increased cardiovascular risk and impaired tolerance for mild exercise. The exaggerated reflex sympathetic responses in HF-rEF may be attributed to a chronic sensitization of mechanically sensitive thin fibre muscle afferents mediated, at least in part, by stimulation of Gq protein-coupled thromboxane A2 and bradykinin B2 receptors on muscle afferent sensory endings. The specific Gq protein-linked signalling mechanisms that produce the chronic mechanoreflex sensitization in HF-rEF have not been investigated but may involve inositol 1,4,5-trisphosphate (IP3) receptors and/or protein kinase C epsilon (PKCε). Here we demonstrate that PKCε, but not IP3 receptors, within the sensory endings of thin fibre muscle afferents plays a role in the sensitization of mechanically sensitive thin fibre muscle afferents in rats with HF-rEF.
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Affiliation(s)
- Alec L E Butenas
- Department of Kinesiology, Kansas State University, Manhattan, KS, USA
| | - Shannon K Parr
- Department of Kinesiology, Kansas State University, Manhattan, KS, USA
| | - Joseph S Flax
- Department of Kinesiology, Kansas State University, Manhattan, KS, USA
| | - Raimi J Carroll
- Department of Kinesiology, Kansas State University, Manhattan, KS, USA
| | | | - Carl J Ade
- Department of Kinesiology, Kansas State University, Manhattan, KS, USA
| | - K Sue Hageman
- Department of Anatomy and Physiology, Kansas State University, Manhattan, KS, USA
| | - Timothy I Musch
- Department of Kinesiology, Kansas State University, Manhattan, KS, USA
- Department of Anatomy and Physiology, Kansas State University, Manhattan, KS, USA
| | - Steven W Copp
- Department of Kinesiology, Kansas State University, Manhattan, KS, USA
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11
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Yi Y, Nie J, Liu X, Guo SW. Progressively Diminished Prostaglandin E2 Signaling in Concordance with Increasing Fibrosis in Ectopic Endometrium. Reprod Sci 2024:10.1007/s43032-024-01658-w. [PMID: 39174854 DOI: 10.1007/s43032-024-01658-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 07/13/2024] [Indexed: 08/24/2024]
Abstract
The prostaglandin E2 (PGE2) signaling has traditionally been viewed to play a pivotal role in endometriosis, linking inflammation and hyperestrogenism. We have previously reported that asectopic endometrium becomes more fibrotic, the expression of both COX-2 and PGE2 receptors (EP2 and EP4) are reduced. This study further investigatedwhether the expression levels of genes involved in the biosynthesis and metabolism of PGE2in ectopic endometrium diminish in concordance with increasing lesional fibrosis. We performed immunohistochemistry analyses of COX-2, mPGES-1, mPGES-2, cPGES, 15-PGDH, EP2 and EP4 and Masson trichrome staining for ovarian endometrioma (OE), adenomyosis (AD), and deep endometriosis (DE) tissue samples and control endometrial tissue samples (CT). Gene and protein expression analyses were performed by real-time RT-PCR and Western blotting, respectively. We found that as the extent of lesional fibrosis increased, immunoexpression of COX-2, mPGES-1/2, cPGES, EP2 and EP4 in OE lesions was increased but no change in these genes/proteins in DE lesions as compared with CT. Immunoexpression of COX-2 was found to be reduced while that of 15-PGDH was found to be elevated in DE lesions. In AD lesions, only EP2 and COX-2 were overexpressed. Thus, our data indicate that when the extent of lesional fibrosis is high, the PGE2 signaling pathway is depressed, manifesting as reduced COX-2 expression and elevated expression of 15-PGDH. They underscore the fact that not all ectopic endometria are the same and equal, and highlight the importance of the extracellular matrix in shaping the lesional behavior and response to drug treatment.
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Affiliation(s)
- Yunhua Yi
- Dept. of Gynecology, Shanghai Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Jichan Nie
- Dept. of Gynecology, Shanghai Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
| | - Xishi Liu
- Dept. of Gynecology, Shanghai Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University, Shanghai, China
| | - Sun-Wei Guo
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University, Shanghai, China.
- Research Institute, Shanghai Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China.
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12
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Chang M, Wu G, Bao P, Yao S, Du M, Chu C, Wang D, Jia H, Sun Y, Yan Y, Zhang X, Hu G, Man Z, Guo T, Luo W, Li H, Wang Y, Mu J. Associations of E-proteinoid 3 receptor genetic polymorphisms with salt sensitivity, longitudinal blood pressure changes, and hypertension incidence in Chinese adults. J Clin Hypertens (Greenwich) 2024; 26:955-963. [PMID: 38952049 PMCID: PMC11301432 DOI: 10.1111/jch.14859] [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: 12/20/2023] [Revised: 04/13/2024] [Accepted: 05/27/2024] [Indexed: 07/03/2024]
Abstract
The E-proteinoid 3 receptor (PTGER3), a member of the prostaglandin E2 (PGE2) subtype receptor, belongs to the G-protein-coupled superfamily of receptors. Animal studies have demonstrated its involvement in salt sensitivity by regulating sodium reabsorption. This study aimed to investigate the association between genetic variants of PTGER3 and salt sensitivity, longitudinal blood pressure (BP) changes, and the incidence of hypertension in Chinese adults. A chronic salt intake intervention was conducted involving 514 adults from 124 families in the 2004 Baoji Salt-Sensitivity Study Cohort in northern China. These participants followed a 3-day regular baseline diet, followed by a 7-day low-salt diet (3.0 g/d) and a 7-day high-salt diet (18 g/d), and were subsequently followed for 14 years. The findings revealed a significant relationship between the single nucleotide polymorphism (SNP) rs17482751 of PTGER3 and diastolic blood pressure (DBP) response to high salt intervention. Additionally, SNPs rs11209733, rs3765894, and rs2268062 were significantly associated with longitudinal changes in systolic blood pressure (SBP), DBP, and mean arterial pressure (MAP) during the 14-year follow-up period. SNP rs6424414 was significantly associated with longitudinal changes in DBP over 14 years. Finally, SNP rs17482751 showed a significant correlation with the incidence of hypertension over 14 years. These results emphasize the significant role of PTGER3 gene polymorphism in salt sensitivity, longitudinal BP changes, and the development of hypertension in the Chinese population.
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Affiliation(s)
- Ming‐Ke Chang
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Guan‐Ji Wu
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Department of CardiologyXi'an Central Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Peng Bao
- Department of General PracticeXinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Shi Yao
- Guangdong Key Laboratory of Age‐Related Cardiac and Cerebral DiseasesAffiliated Hospital of Guangdong Medical UniversityZhanjiangGuangdongChina
| | - Ming‐Fei Du
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Chao Chu
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Dan Wang
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Hao Jia
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Yue Sun
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Yu Yan
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Xi Zhang
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Gui‐Lin Hu
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Zi‐Yue Man
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Tong‐Shuai Guo
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Wen‐Jing Luo
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Hao Li
- Department of Critical Care MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Yang Wang
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
| | - Jian‐Jun Mu
- Department of Cardiovascular MedicineFirst Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Key Laboratory of Molecular Cardiology of Shaanxi ProvinceXi'anChina
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13
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Su H, Zhou W, Chen W, Yang K, Yang M, He H, Qian C, Yuan D, Jiang K, Zhu J. PGE2 binding to EP2 promotes ureteral stone expulsion by relaxing ureter via the cAMP-PKA pathway. BMC Urol 2024; 24:117. [PMID: 38851678 PMCID: PMC11161962 DOI: 10.1186/s12894-024-01504-w] [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: 01/04/2024] [Accepted: 05/28/2024] [Indexed: 06/10/2024] Open
Abstract
BACKGROUND This study investigated the relaxation effect of PGE2 on the ureter and its role in promoting calculi expulsion following calculi development. METHODS By using immunofluorescence and Western blot, we were able to locate EP receptors in the ureter. In vitro experiments assessed the impact of PGE2, receptor antagonists, and agonists on ureteral relaxation rate. We constructed a model of ureteral calculi with flowable resin and collected ureteral tissue from postoperative side of the ureter after obstruction surgery. Western blot analysis was used to determine the protein expression levels of EP receptors and the PGE2 terminal synthase mPGES-1. Additionally, PGE2 was added to smooth muscle cells to observe downstream cAMP and PKA changes. RESULTS The expression of EP2 and EP4 proteins in ureteral smooth muscle was verified by Western blot analysis. According to immunofluorescence, EP2 was primarily found on the cell membrane, while EP4 was found in the nucleus. In vitro, PGE2 induced concentration-dependent ureteral relaxation. Maximum diastolic rate was 70.94 ± 4.57% at a concentration of 30µM. EP2 antagonists hindered this effect, while EP4 antagonists did not. Obstructed ureters exhibited elevated mPGES-1 and EP2 protein expression (P < 0.01). Smooth muscle cells treated with PGE2 displayed increased cAMP and phosphorylated PKA. CONCLUSIONS PGE2 binding to EP2 induces ureteral relaxation through the cAMP-PKA pathway. This will provide a new theoretical basis for the development of new therapeutic approaches for the use of PGE2 in the treatment of ureteral stones.
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Affiliation(s)
- Hao Su
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, China
| | - Wenyan Zhou
- Department of Clinical Laboratory, Guizhou Provincial People's Hospital, Guiyang, 550025, Guizhou Province, China
| | - Weiming Chen
- Guizhou University School of Medicine, Guiyang, 550025, Guizhou Province, China
| | - Ke Yang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, China
- Guizhou Medical University, Guiyang, 550002, Guizhou Province, China
| | - Meng Yang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, China
- Zunyi Medical University, Zunyi, 563000, Guizhou Province, China
| | - Hu He
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, China
- Zunyi Medical University, Zunyi, 563000, Guizhou Province, China
| | - Cheng Qian
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, China
- Zunyi Medical University, Zunyi, 563000, Guizhou Province, China
| | - Dongbo Yuan
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, China
| | - Kehua Jiang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, China.
| | - Jianguo Zhu
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, China.
- Guizhou University School of Medicine, Guiyang, 550025, Guizhou Province, China.
- Guizhou Medical University, Guiyang, 550002, Guizhou Province, China.
- Zunyi Medical University, Zunyi, 563000, Guizhou Province, China.
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14
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Pires P, Pereira AMPT, Pena A, Silva LJG. Non-Steroidal Anti-Inflammatory Drugs in the Aquatic Environment and Bivalves: The State of the Art. TOXICS 2024; 12:415. [PMID: 38922095 PMCID: PMC11209577 DOI: 10.3390/toxics12060415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/31/2024] [Accepted: 06/02/2024] [Indexed: 06/27/2024]
Abstract
In recent years, contaminants of emerging concern have been reported in several environmental matrices due to advances in analytical methodologies. These anthropogenic micropollutants are detected at residual levels, representing an ecotoxicological threat to aquatic ecosystems. In particular, the pharmacotherapeutic group of non-steroidal anti-inflammatories (NSAIDs) is one of the most prescribed and used, as well as one of the most frequently detected in the aquatic environment. Bivalves have several benefits as a foodstuff, and also as an environment bioindicator species. Therefore, they are regarded as an ideal tool to assess this issue from both ecotoxicological and food safety perspectives. Thus, the control of these residues in bivalves is extremely important to safeguard environmental health, also ensuring food safety and public health. This paper aims to review NSAIDs in bivalves, observing their consumption, physicochemical characteristics, and mechanisms of action; their environmental occurrence in the aquatic environment and aquatic biota; and their effects on the ecosystem and the existent legal framework. A review of the analytical methodologies for the determination of NSAIDs in bivalves is also presented.
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Affiliation(s)
| | | | | | - Liliana J. G. Silva
- LAQV, REQUIMTE, Laboratory of Bromatology and Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Sta Comba, 3000-548 Coimbra, Portugal (A.P.)
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15
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Goto T, Nakamura Y, Ito Y, Miyagawa S. Regenerative medicine in cardiovascular disease. Regen Ther 2024; 26:859-866. [PMID: 39430582 PMCID: PMC11490749 DOI: 10.1016/j.reth.2024.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 09/04/2024] [Accepted: 09/11/2024] [Indexed: 10/22/2024] Open
Abstract
Owing to the rapid increase in the number of people with severe heart failure, regenerative medicine is anticipated to play a role in overcoming the limitations inherent in existing surgical interventions. There are essentially two types of cardiac regenerative therapies for a failing heart. Cellular regenerative therapies using various stem cells improve the functional recovery of the heart mainly by cytokine paracrine effects. The implantation of induced pluripotent stem cell-derived cardiomyocytes can contribute not only to the inhibition of adverse heart remodeling by paracrine effects but also to the supply of newly born functional myocytes with the recipient myocardium as "mechanically working cells." Cell transplantation, including autologous myoblast transplantation, reduces heart failure exacerbations and benefits patients without the need for other treatment options. Although cellular therapy is currently the mainstream approach, it requires an in-house cell-processing center with an aseptic environment. In addition, these stem cells are usually introduced via several invasive delivery methods, including intracoronary administration, and cellular sheet implantation. Simplifying the culture methods for these cells is a crucial problem that needs to be resolved. Drug-induced regenerative therapy is another option that enhances self-endogenous regenerative systems in the human body and does not require invasive methods or cell cultures. Therefore, drug-induced regenerative therapies may overcome the disadvantages of these cellular therapies. The purpose of this report is to summarize cell transplantation therapy in the cardiovascular system and regenerative therapy for heart failure using an autologous endogenous regenerative system.
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Affiliation(s)
- Takasumi Goto
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Cardiovascular Surgery, Toyonaka Municipal Hospital, Osaka, Japan
| | - Yuki Nakamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshito Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
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16
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Santiso A, Heinemann A, Kargl J. Prostaglandin E2 in the Tumor Microenvironment, a Convoluted Affair Mediated by EP Receptors 2 and 4. Pharmacol Rev 2024; 76:388-413. [PMID: 38697857 DOI: 10.1124/pharmrev.123.000901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 11/15/2023] [Accepted: 11/20/2023] [Indexed: 05/05/2024] Open
Abstract
The involvement of the prostaglandin E2 (PGE2) system in cancer progression has long been recognized. PGE2 functions as an autocrine and paracrine signaling molecule with pleiotropic effects in the human body. High levels of intratumoral PGE2 and overexpression of the key metabolic enzymes of PGE2 have been observed and suggested to contribute to tumor progression. This has been claimed for different types of solid tumors, including, but not limited to, lung, breast, and colon cancer. PGE2 has direct effects on tumor cells and angiogenesis that are known to promote tumor development. However, one of the main mechanisms behind PGE2 driving cancerogenesis is currently thought to be anchored in suppressed antitumor immunity, thus providing possible therapeutic targets to be used in cancer immunotherapies. EP2 and EP4, two receptors for PGE2, are emerging as being the most relevant for this purpose. This review aims to summarize the known roles of PGE2 in the immune system and its functions within the tumor microenvironment. SIGNIFICANCE STATEMENT: Prostaglandin E2 (PGE2) has long been known to be a signaling molecule in cancer. Its presence in tumors has been repeatedly associated with disease progression. Elucidation of its effects on immunological components of the tumor microenvironment has highlighted the potential of PGE2 receptor antagonists in cancer treatment, particularly in combination with immune checkpoint inhibitor therapeutics. Adjuvant treatment could increase the response rates and the efficacy of immune-based therapies.
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Affiliation(s)
- Ana Santiso
- Division of Pharmacology, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Akos Heinemann
- Division of Pharmacology, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Julia Kargl
- Division of Pharmacology, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
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17
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Li L, Ma SR, Yu ZL. Targeting the lipid metabolic reprogramming of tumor-associated macrophages: A novel insight into cancer immunotherapy. Cell Oncol (Dordr) 2024; 47:415-428. [PMID: 37776422 DOI: 10.1007/s13402-023-00881-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2023] [Indexed: 10/02/2023] Open
Abstract
BACKGROUND Tumor-associated macrophages, as the major immunocytes in solid tumors, show divided loyalty and remarkable plasticity in tumorigenesis. Once the M2-to-M1 repolarization is achieved, they could be switched from the supporters for tumor development into the guardians for host immunity. Meanwhile, Lipid metabolic reprogramming is demonstrated to be one of the most important hallmarks of tumor-associated macrophages, which plays a decisive role in regulating their phenotypes and functions to promote tumorigenesis and immunotherapy resistance. Therefore, targeting the lipid metabolism of TAMs may provide a new direction for anti-tumor strategies. CONCLUSION In this review, we first summarized the origins, classifications and general lipid metabolic process of TAMs. Then we discussed the currently available drugs and interventions that target lipid metabolic disorders of TAMs, including those targeting lipid uptake, efflux, lipolysis, FAO and lipid peroxidation. Besides, based on the recent research status, we summarized the present challenges for this cancer immunotherapy, including the precise drug delivery system, the lipid metabolic heterogeneity, and the intricate lipid metabolic interactions in the TME, and we also proposed corresponding possible solutions. Collectively, we hope this review will give researchers a better understanding of the lipid metabolism of TAMs and lead to the development of corresponding anti-tumor therapies in the future.
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Affiliation(s)
- Liang Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, People's Republic of China
| | - Si-Rui Ma
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, People's Republic of China.
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China.
| | - Zi-Li Yu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, People's Republic of China.
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China.
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Li X, Zhang X, Wen X, Zhang D, Qu C, Miao X, Zhang W, Zhang R, Liu G, Xiao P, Sun JP, Gong W. Structural basis for ligand recognition and activation of the prostanoid receptors. Cell Rep 2024; 43:113893. [PMID: 38446662 DOI: 10.1016/j.celrep.2024.113893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/16/2024] [Accepted: 02/15/2024] [Indexed: 03/08/2024] Open
Abstract
Prostaglandin F2α (PGF2α) and thromboxane A2 (TXA2) are endogenous arachidonic acid metabolites, modulating diverse physiological processes including inflammation and cardiovascular homeostasis through activating PGF2α receptor (FP) and TXA2 receptor (TP). Ligands targeting FP and TP have demonstrated efficacy in treating conditions like glaucoma and cardiovascular diseases in humans, as well as reproductive-related diseases in animals. Here, we present five cryoelectron microscopy structures illustrating FP and TP in complex with Gq and bound to PGF2α (endogenous ligand), latanoprost acid (a clinical drug), and two other synthetic agonists. Combined with mutational and functional studies, these structures reveal not only structural features for the specific recognition of endogenous ligands and attainment of receptor selectivity of FP and TP but also the common mechanisms of receptor activation and Gq protein coupling. The findings may enrich our knowledge of ligand recognition and signal transduction of the prostanoid receptor family and facilitate rational ligand design toward these two receptors.
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Affiliation(s)
- Xiu Li
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xuan Zhang
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Xin Wen
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Daolai Zhang
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Changxiu Qu
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xinyi Miao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Wenkai Zhang
- School of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Ru Zhang
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Guibing Liu
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Peng Xiao
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
| | - Jin-Peng Sun
- Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China; Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
| | - Weimin Gong
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China.
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19
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Li H, Bradbury JA, Edin ML, Gruzdev A, Li H, Graves JP, DeGraff LM, Lih FB, Feng C, Wolf ER, Bortner CD, London SJ, Sparks MA, Coffman TM, Zeldin DC. TXA2 attenuates allergic lung inflammation through regulation of Th2, Th9, and Treg differentiation. J Clin Invest 2024; 134:e165689. [PMID: 38483511 PMCID: PMC11060738 DOI: 10.1172/jci165689] [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: 01/03/2023] [Accepted: 03/12/2024] [Indexed: 05/02/2024] Open
Abstract
In lung, thromboxane A2 (TXA2) activates the TP receptor to induce proinflammatory and bronchoconstrictor effects. Thus, TP receptor antagonists and TXA2 synthase inhibitors have been tested as potential asthma therapeutics in humans. Th9 cells play key roles in asthma and regulate the lung immune response to allergens. Herein, we found that TXA2 reduces Th9 cell differentiation during allergic lung inflammation. Th9 cells were decreased approximately 2-fold and airway hyperresponsiveness was attenuated in lungs of allergic mice treated with TXA2. Naive CD4+ T cell differentiation to Th9 cells and IL-9 production were inhibited dose-dependently by TXA2 in vitro. TP receptor-deficient mice had an approximately 2-fold increase in numbers of Th9 cells in lungs in vivo after OVA exposure compared with wild-type mice. Naive CD4+ T cells from TP-deficient mice exhibited increased Th9 cell differentiation and IL-9 production in vitro compared with CD4+ T cells from wild-type mice. TXA2 also suppressed Th2 and enhanced Treg differentiation both in vitro and in vivo. Thus, in contrast to its acute, proinflammatory effects, TXA2 also has longer-lasting immunosuppressive effects that attenuate the Th9 differentiation that drives asthma progression. These findings may explain the paradoxical failure of anti-thromboxane therapies in the treatment of asthma.
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Affiliation(s)
- Hong Li
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - J. Alyce Bradbury
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Matthew L. Edin
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Artiom Gruzdev
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Huiling Li
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Joan P. Graves
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Laura M. DeGraff
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Fred B. Lih
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Chiguang Feng
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Erin R. Wolf
- Department of Nephrology, Duke University Medical Center, Durham, North Carolina, USA
| | - Carl D. Bortner
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Stephanie J. London
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
| | - Matthew A. Sparks
- Department of Nephrology, Duke University Medical Center, Durham, North Carolina, USA
| | - Thomas M. Coffman
- Department of Nephrology, Duke University Medical Center, Durham, North Carolina, USA
- Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore
| | - Darryl C. Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, North Carolina, USA
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20
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Schimanski J, Gresnigt MS, Brunner E, Werz O, Hube B, Garscha U. Hyphal-associated protein expression is crucial for Candida albicans-induced eicosanoid biosynthesis in immune cells. Eur J Immunol 2024; 54:e2350743. [PMID: 38233139 DOI: 10.1002/eji.202350743] [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: 08/29/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 01/19/2024]
Abstract
Candida albicans causes opportunistic infections ranging from mucosal mycoses to life-threatening systemic infections in immunocompromised patients. During C. albicans infection, leukotrienes and prostaglandins are formed from arachidonic acid by 5-lipoxygenase (5-LOX) and cyclooxygenases, respectively to amplify inflammatory conditions, but also to initiate macrophage infiltration to achieve tissue homeostasis. Since less is known about the cellular mechanisms triggering such lipid mediator biosynthesis, we investigated the eicosanoid formation in monocyte-derived M1 and M2 macrophages, neutrophils and HEK293 cells transfected with 5-LOX and 5-LOX-activating protein (FLAP) in response to C. albicans yeast or hyphae. Leukotriene biosynthesis was exclusively induced by hyphae in neutrophils and macrophages, whereas prostaglandin E2 was also formed in response to yeast cells by M1 macrophages. Eicosanoid biosynthesis was significantly higher in M1 compared to M2 macrophages. In HEK_5-LOX/FLAP cells only hyphae activated the essential 5-LOX translocation to the nuclear membrane. Using yeast-locked C. albicans mutants, we demonstrated that hyphal-associated protein expression is critical in eicosanoid formation. For neutrophils and HEK_5-LOX/FLAP cells, hyphal wall protein 1 was identified as the essential surface protein that stimulates leukotriene biosynthesis. In summary, our data suggest that hyphal-associated proteins of C. albicans are central triggers of eicosanoid biosynthesis in human phagocytes.
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Affiliation(s)
- Jana Schimanski
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Greifswald University, Greifswald, Germany
| | - Mark S Gresnigt
- Junior Research Group Adaptive Pathogenicity Strategies, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Jena, Germany
| | - Elena Brunner
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller University Jena, Jena, Germany
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich-Schiller University Jena, Jena, Germany
| | - Bernhard Hube
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knoell Institute, Jena, Germany
- Institute for Microbiology, Friedrich Schiller University, Jena, Germany
| | - Ulrike Garscha
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Greifswald University, Greifswald, Germany
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21
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Vu NP, Ali L, Chua TL, Barr DA, Hendrickson HP, Trivedi DJ. Computational Insights into Prostaglandin E 2 Ligand Binding and Activation of G-Protein-Coupled Receptors. ACS APPLIED BIO MATERIALS 2024; 7:579-587. [PMID: 37058420 DOI: 10.1021/acsabm.2c01049] [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] [Indexed: 04/15/2023]
Abstract
G-protein coupled receptors (GPCRs) are eukaryotic integral membrane proteins that regulate signal transduction cascade pathways implicated in a variety of human diseases and are consequently of interest as drug targets. For this reason, it is of interest to investigate the way in which specific ligands bind and trigger conformational changes in the receptor during activation and how this in turn modulates intracellular signaling. In the present study, we investigate the way in which the ligand Prostaglandin E2 interacts with three GPCRs in the E-prostanoid family: EP1, EP2, and EP3. We examine information transfer pathways based on long-time scale molecular dynamics simulations using transfer entropy and betweenness centrality to measure the physical transfer of information among residues in the system. We monitor specific residues involved in binding to the ligand and investigate how the information transfer behavior of these residues changes upon ligand binding. Our results provide key insights that enable a deeper understanding of EP activation and signal transduction functioning pathways at the molecular level, as well as enabling us to make some predictions about the activation pathway for the EP1 receptor, for which little structural information is currently available. Our results should advance ongoing efforts in the development of potential therapeutics targeting these receptors.
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Affiliation(s)
- Nam P Vu
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Luke Ali
- Department of Physics, Clarkson University, Potsdam, New York 13699, United States
| | - Theresa L Chua
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Daniel A Barr
- Department of Chemistry, University of Mary, Bismarck, North Dakota 58504, United States
| | - Heidi P Hendrickson
- Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, United States
| | - Dhara J Trivedi
- Department of Physics, Clarkson University, Potsdam, New York 13699, United States
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22
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Tsurudome Y, Yoshida Y, Hamamura K, Ogino T, Yasukochi S, Yasuo S, Iwamoto A, Yoshihara T, Inazumi T, Tsuchiya S, Takeo T, Nakagata N, Higuchi S, Sugimoto Y, Tsuruta A, Koyanagi S, Matsunaga N, Ohdo S. Prostaglandin F2α Affects the Cycle of Clock Gene Expression and Mouse Behavior. Int J Mol Sci 2024; 25:1841. [PMID: 38339119 PMCID: PMC10855224 DOI: 10.3390/ijms25031841] [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: 12/20/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
Prostaglandins are bioactive compounds, and the activation of their receptors affects the expression of clock genes. However, the prostaglandin F receptor (Ptgfr) has no known relationship with biological rhythms. Here, we first measured the locomotor period lengths of Ptgfr-KO (B6.129-Ptgfrtm1Sna) mice and found that they were longer under constant dark conditions (DD) than those of wild-type (C57BL/6J) mice. We then investigated the clock gene patterns within the suprachiasmatic nucleus in Ptgfr-KO mice under DD and observed a decrease in the expression of the clock gene cryptochrome 1 (Cry1), which is related to the circadian cycle. Moreover, the expression of Cry1, Cry2, and Period2 (Per2) mRNA were significantly altered in the mouse liver in Ptgfr-KO mice under DD. In the wild-type mouse, the plasma prostaglandin F2α (PGF2α) levels showed a circadian rhythm under a 12 h cycle of light-dark conditions. In addition, in vitro experiments showed that the addition of PTGFR agonists altered the amplitude of Per2::luc activity, and this alteration differed with the timing of the agonist addition. These results lead us to hypothesize that the plasma rhythm of PGF2α is important for driving clock genes, thus suggesting the involvement of PGF2α- and Ptgfr-targeting drugs in the biological clock cycle.
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Affiliation(s)
- Yuya Tsurudome
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.T.); (T.O.); (S.Y.); (S.K.)
| | - Yuya Yoshida
- Department of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.Y.); (K.H.)
| | - Kengo Hamamura
- Department of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.Y.); (K.H.)
| | - Takashi Ogino
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.T.); (T.O.); (S.Y.); (S.K.)
| | - Sai Yasukochi
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.T.); (T.O.); (S.Y.); (S.K.)
| | - Shinobu Yasuo
- Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (S.Y.)
| | - Ayaka Iwamoto
- Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (S.Y.)
| | - Tatsuya Yoshihara
- SOUSEIKAI Fukuoka Mirai Hospital Clinical Research Center, 3-5-1 Kashiiteriha, Higashi-ku, Fukuoka 813-0017, Japan;
| | - Tomoaki Inazumi
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan; (T.I.); (S.T.); (Y.S.)
| | - Soken Tsuchiya
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan; (T.I.); (S.T.); (Y.S.)
| | - Toru Takeo
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Institute of Resource Development and Analysis, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan;
| | - Naomi Nakagata
- Division of Reproductive Biotechnology and Innovation, Center for Animal Resources and Development (CARD), Institute of Resource Development and Analysis, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan;
| | - Shigekazu Higuchi
- Department of Human Life Design and Science, Faculty of Design, Kyushu University, 4-9-1 Shiobaru, Minami-ku, Fukuoka 815-8540, Japan;
| | - Yukihiko Sugimoto
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan; (T.I.); (S.T.); (Y.S.)
| | - Akito Tsuruta
- Department of Glocal Healthcare Science, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan;
| | - Satoru Koyanagi
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.T.); (T.O.); (S.Y.); (S.K.)
- Department of Glocal Healthcare Science, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan;
| | - Naoya Matsunaga
- Department of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.Y.); (K.H.)
| | - Shigehiro Ohdo
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.T.); (T.O.); (S.Y.); (S.K.)
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23
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Kwon O, Lee H, Jung J, Son YS, Jeon S, Yoo WD, Son N, Jung KB, Choi E, Lee IC, Kwon HJ, Kim C, Lee MO, Cho HS, Kim DS, Son MY. Chemically-defined and scalable culture system for intestinal stem cells derived from human intestinal organoids. Nat Commun 2024; 15:799. [PMID: 38280855 PMCID: PMC10821882 DOI: 10.1038/s41467-024-45103-7] [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: 02/02/2023] [Accepted: 01/12/2024] [Indexed: 01/29/2024] Open
Abstract
Three-dimensional human intestinal organoids (hIO) are widely used as a platform for biological and biomedical research. However, reproducibility and challenges for large-scale expansion limit their applicability. Here, we establish a human intestinal stem cell (ISC) culture method expanded under feeder-free and fully defined conditions through selective enrichment of ISC populations (ISC3D-hIO) within hIO derived from human pluripotent stem cells. The intrinsic self-organisation property of ISC3D-hIO, combined with air-liquid interface culture in a minimally defined medium, forces ISC3D-hIO to differentiate into the intestinal epithelium with cellular diversity, villus-like structure, and barrier integrity. Notably, ISC3D-hIO is an ideal cell source for gene editing to study ISC biology and transplantation for intestinal diseases. We demonstrate the intestinal epithelium differentiated from ISC3D-hIO as a model system to study severe acute respiratory syndrome coronavirus 2 viral infection. ISC3D-hIO culture technology provides a biological tool for use in regenerative medicine and disease modelling.
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Affiliation(s)
- Ohman Kwon
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Hana Lee
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Jaeeun Jung
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Ye Seul Son
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Sojeong Jeon
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Won Dong Yoo
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Naeun Son
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Kwang Bo Jung
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Eunho Choi
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - In-Chul Lee
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 56212, Republic of Korea
- KRIBB, Korea Preclinical Evaluation Center, Jeongeup, 56212, Republic of Korea
| | - Hyung-Jun Kwon
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 56212, Republic of Korea
- KRIBB, Korea Preclinical Evaluation Center, Jeongeup, 56212, Republic of Korea
| | - Chuna Kim
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
- KRIBB, Aging Convergence Research Center, Daejeon, 34141, Republic of Korea
| | - Mi-Ok Lee
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Hyun-Soo Cho
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
- Department of Biological Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Dae Soo Kim
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Mi-Young Son
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea.
- KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.
- Department of Biological Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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24
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Nakamura K. Central Mechanisms of Thermoregulation and Fever in Mammals. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1461:141-159. [PMID: 39289279 DOI: 10.1007/978-981-97-4584-5_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
Thermoregulation is a fundamental homeostatic function in mammals mediated by the central nervous system. The framework of the central circuitry for thermoregulation lies in the hypothalamus and brainstem. The preoptic area (POA) of the hypothalamus integrates cutaneous and central thermosensory information into efferent control signals that regulate excitatory descending pathways through the dorsomedial hypothalamus (DMH) and rostral medullary raphe region (rMR). The cutaneous thermosensory feedforward signals are delivered to the POA by afferent pathways through the lateral parabrachial nucleus, while the central monitoring of body core temperature is primarily mediated by warm-sensitive neurons in the POA for negative feedback regulation. Prostaglandin E2, a pyrogenic mediator produced in response to infection, acts on the POA to trigger fever. Recent studies have revealed that this circuitry also functions for physiological responses to psychological stress and starvation. Master psychological stress signaling from the medial prefrontal cortex to the DMH has been discovered to drive a variety of physiological responses for stress coping, including hyperthermia. During starvation, hunger signaling from the hypothalamus was found to activate medullary reticular neurons, which then suppress thermogenic sympathetic outflows from the rMR for energy saving. This thermoregulatory circuit represents a fundamental mechanism of the central regulation for homeostasis.
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Affiliation(s)
- Kazuhiro Nakamura
- Department of Integrative Physiology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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25
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Aikawa S, Hirota Y. Roles of lipid mediators in early pregnancy events. Reprod Med Biol 2024; 23:e12597. [PMID: 39010880 PMCID: PMC11247399 DOI: 10.1002/rmb2.12597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 06/24/2024] [Indexed: 07/17/2024] Open
Abstract
Background Early pregnancy events, including embryo implantation, are critical for maintaining a healthy pregnancy and facilitating childbirth. Despite numerous signaling pathways implicated in establishing early pregnancy, a comprehensive understanding of implantation remains elusive. Methods This paper provides a comprehensive review of the current research on lipids in the context of early pregnancy, with a particular focus on feto-maternal communications. Main Findings Embryo implantation entails direct interaction between uterine tissues and embryos. Introducing embryos triggers significant changes in uterine epithelial morphology and stromal differentiation, facilitating embryo implantation through communication with uterine tissue. Studies employing genetic models and chemical compounds targeting enzymes and receptors have elucidated the crucial roles of lipid mediators-prostaglandins, lysophosphatidic acid, sphingosine-1-phosphate, and cannabinoids-in early pregnancy events. Conclusion Given the high conservation of lipid synthases and receptors across species, lipid mediators likely play pivotal roles in rodents and humans. Further investigations into lipids hold promise for developing novel diagnostic and therapeutic approaches for infertility in humans.
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Affiliation(s)
- Shizu Aikawa
- Department of Obstetrics and Gynecology Graduate School of Medicine, The University of Tokyo Tokyo Japan
| | - Yasushi Hirota
- Department of Obstetrics and Gynecology Graduate School of Medicine, The University of Tokyo Tokyo Japan
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26
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Lv X, Gao K, Nie J, Zhang X, Zhang S, Ren Y, Sun X, Li Q, Huang J, Liu L, Zhang X, Zhang W, Liu X. Structures of human prostaglandin F 2α receptor reveal the mechanism of ligand and G protein selectivity. Nat Commun 2023; 14:8136. [PMID: 38065938 PMCID: PMC10709307 DOI: 10.1038/s41467-023-43922-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Prostaglandins and their receptors regulate various physiological processes. Carboprost, an analog of prostaglandin F2α and an agonist for the prostaglandin F2-alpha receptor (FP receptor), is clinically used to treat postpartum hemorrhage (PPH). However, off-target activation of closely related receptors such as the prostaglandin E receptor subtype EP3 (EP3 receptor) by carboprost results in side effects and limits the clinical application. Meanwhile, the FP receptor selective agonist latanoprost is not suitable to treat PPH due to its poor solubility and fast clearance. Here, we present two cryo-EM structures of the FP receptor bound to carboprost and latanoprost-FA (the free acid form of latanoprost) at 2.7 Å and 3.2 Å resolution, respectively. The structures reveal the molecular mechanism of FP receptor selectivity for both endogenous prostaglandins and clinical drugs, as well as the molecular mechanism of G protein coupling preference by the prostaglandin receptors. The structural information may guide the development of better prostaglandin drugs.
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Affiliation(s)
- Xiuqing Lv
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Kaixuan Gao
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
| | - Jia Nie
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Xin Zhang
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
| | - Shuhao Zhang
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
| | - Yinhang Ren
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
| | - Xiaoou Sun
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Qi Li
- Reproductive Medicine Center, Xiangya Hospital Central South University, Changsha, China
| | - Jingrui Huang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Lijuan Liu
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Xiaowen Zhang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Weishe Zhang
- Department of Obstetrics, Xiangya Hospital Central South University, Changsha, China.
- Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China.
| | - Xiangyu Liu
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China.
- Beijing Frontier Research Center for Biological Structure, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing, China.
- Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing, China.
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Nayak AP, Javed E, Villalba DR, Wang Y, Morelli HP, Shah SD, Kim N, Ostrom RS, Panettieri RA, An SS, Tang DD, Penn RB. Prorelaxant E-type Prostanoid Receptors Functionally Partition to Different Procontractile Receptors in Airway Smooth Muscle. Am J Respir Cell Mol Biol 2023; 69:584-591. [PMID: 37523713 PMCID: PMC10633839 DOI: 10.1165/rcmb.2022-0445oc] [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: 11/15/2022] [Accepted: 07/31/2023] [Indexed: 08/02/2023] Open
Abstract
Prostaglandin E2 imparts diverse physiological effects on multiple airway cells through its actions on four distinct E-type prostanoid (EP) receptor subtypes (EP1-EP4). Gs-coupled EP2 and EP4 receptors are expressed on airway smooth muscle (ASM), yet their capacity to regulate the ASM contractile state remains subject to debate. We used EP2 and EP4 subtype-specific agonists (ONO-259 and ONO-329, respectively) in cell- and tissue-based models of human ASM contraction-magnetic twisting cytometry (MTC), and precision-cut lung slices (PCLSs), respectively-to study the EP2 and EP4 regulation of ASM contraction and signaling under conditions of histamine or methacholine (MCh) stimulation. ONO-329 was superior (<0.05) to ONO-259 in relaxing MCh-contracted PCLSs (log half maximal effective concentration [logEC50]: 4.9 × 10-7 vs. 2.2 × 10-6; maximal bronchodilation ± SE, 35 ± 2% vs. 15 ± 2%). However, ONO-259 and ONO-329 were similarly efficacious in relaxing histamine-contracted PCLSs. Similar differential effects were observed in MTC studies. Signaling analyses revealed only modest differences in ONO-329- and ONO-259-induced phosphorylation of the protein kinase A substrates VASP and HSP20, with concomitant stimulation with MCh or histamine. Conversely, ONO-259 failed to inhibit MCh-induced phosphorylation of the regulatory myosin light chain (pMLC20) and the F-actin/G-actin ratio (F/G-actin ratio) while effectively inhibiting their induction by histamine. ONO-329 was effective in reversing induced pMLC20 and the F/G-actin ratio with both MCh and histamine. Thus, the contractile-agonist-dependent differential effects are not explained by changes in the global levels of phosphorylated protein kinase A substrates but are reflected in the regulation of pMLC20 (cross-bridge cycling) and F/G-actin ratio (actin cytoskeleton integrity, force transmission), implicating a role for compartmentalized signaling involving muscarinic, histamine, and EP receptor subtypes.
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Affiliation(s)
- Ajay P. Nayak
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Elham Javed
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Dominic R. Villalba
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Yinna Wang
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Henry P. Morelli
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Sushrut D. Shah
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Nicholas Kim
- Rutgers Institute for Translational Medicine and Science, Rutgers University, New Brunswick, New Jersey
| | - Rennolds S. Ostrom
- Department of Biomedical and Pharmaceutical Sciences, School of Pharmacy, Chapman University, Irvine, California; and
| | - Reynold A. Panettieri
- Rutgers Institute for Translational Medicine and Science, Rutgers University, New Brunswick, New Jersey
| | - Steven S. An
- Rutgers Institute for Translational Medicine and Science, Rutgers University, New Brunswick, New Jersey
| | - Dale D. Tang
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Raymond B. Penn
- Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Division of Pulmonary, Allergy & Critical Care Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
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Kobayashi A, Hiroyama Y, Mamiya T, Oikawa M, Konishi T. The COX-2/PGE2 Response Pathway Upregulates Radioresistance in A549 Human Lung Cancer Cells through Radiation-Induced Bystander Signaling. BIOLOGY 2023; 12:1368. [PMID: 37997966 PMCID: PMC10669009 DOI: 10.3390/biology12111368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023]
Abstract
This study aimed to determine the mechanism underlying the modulation of radiosensitivity in cancer cells by the radiation-induced bystander effect (RIBE). We hypothesized that the RIBE mediates cyclooxygenase-2 (COX-2) and its metabolite prostaglandin E2 (PGE2) in elevating radioresistance in unirradiated cells. In this study, we used the SPICE-QST microbeam irradiation system to target 0.07-0.7% cells by 3.4-MeV proton microbeam in the cell culture sample, such that most cells in the dish became bystander cells. Twenty-four hours after irradiation, we observed COX-2 protein upregulation in microbeam-irradiated cells compared to that of controls. Additionally, 0.29% of the microbeam-irradiated cells exhibited increased cell survival and a reduced micronucleus rate against X-ray irradiation compared to that of non-microbeam irradiated cells. The radioresistance response was diminished in both cell groups with the hemichannel inhibitor and in COX-2-knockout cells under cell-to-cell contact and sparsely distributed conditions. The results indicate that the RIBE upregulates the cell radioresistance through COX-2/PGE2 intercellular responses, thereby contributing to issues, such as the risk of cancer recurrence.
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Affiliation(s)
- Alisa Kobayashi
- Single Cell Radiation Biology Team, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inageku, Chiba 263-8555, Japan
- Radiation Effect Research Group, Department of Accelerator and Medical Physics, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inageku, Chiba 263-8555, Japan
| | - Yota Hiroyama
- Single Cell Radiation Biology Team, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inageku, Chiba 263-8555, Japan
- Department of Radiological Technology, Graduate School of Health Sciences, Hirosaki University, 66-1 Hon-cho, Hirosaki-shi, Aomori 036-8564, Japan
- Department of Radiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba 260-8677, Japan
| | - Taisei Mamiya
- Single Cell Radiation Biology Team, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inageku, Chiba 263-8555, Japan
- Graduate School of Science, Rikkyo (St. Paul’s) University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Masakazu Oikawa
- Electrostatic Accelerator Operation Section, Department of Accelerator and Medical Physics, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inageku, Chiba 263-8555, Japan
| | - Teruaki Konishi
- Single Cell Radiation Biology Team, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inageku, Chiba 263-8555, Japan
- Department of Radiological Technology, Graduate School of Health Sciences, Hirosaki University, 66-1 Hon-cho, Hirosaki-shi, Aomori 036-8564, Japan
- Graduate School of Science, Rikkyo (St. Paul’s) University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
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Guo T, Liu B, Zeng R, Lin R, Guo J, Yu G, Xu Y, Tan X, Xie K, Zhou Y. The vasoconstrictor activities of prostaglandin D 2 via the thromboxane prostanoid receptor and E prostanoid receptor-3 outweigh its concurrent vasodepressor effect mainly through D prostanoid receptor-1 ex vivo and in vivo. Eur J Pharmacol 2023; 956:175963. [PMID: 37543159 DOI: 10.1016/j.ejphar.2023.175963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/07/2023]
Abstract
Prostaglandin (PG) D2, a commonly considered vasodilator through D prostanoid receptor-1 (DP1), might also evoke vasoconstriction via acting on the thromboxane (Tx)-prostanoid receptor (the original receptor of TxA2; TP) and/or E prostanoid receptor-3 (one of the vasoconstrictor receptors of PGE2; EP3). This study aimed to test the above hypothesis in the mouse renal vascular bed (main renal arteries and perfused kidneys) and/or mesenteric resistance arteries and determine how the vasoconstrictor mechanism influences the overall PGD2 effect on systemic blood pressure under in vivo conditions. Experiments were performed on control wild-type (WT) mice and mice with deficiencies in TP (TP-/-) and/or EP3 (EP3-/-). Here we show that PGD2 indeed evoked vasoconstrictor responses in the above-mentioned tissues of WT mice, which were however not only reduced by TP-/- or EP3-/-, but also reversed by TP-/-/EP3-/- in some of the above tissues (mesenteric resistance arteries or perfused kidneys) to dilator reactions that were reduced by non-selective DP antagonism. A slight or mild pressor response was also observed with PGD2 under in vivo conditions, and this was again reversed to a depressor response in TP-/- or TP-/-/EP3-/- mice. Non-selective DP antagonism reduced the PGD2-evoked depressor response in TP-/-/EP3-/- mice as well. These results thus demonstrate that like other PGs, PGD2 activates TP and/or EP3 to evoke vasoconstrictor activities, which can outweigh its concurrent vasodepressor activity mediated mainly through DP1, and hence result in a pressor response, although the response might only be of a slight or mild extent.
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Affiliation(s)
- Tingting Guo
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Bin Liu
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China; Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, China.
| | - Ruhui Zeng
- Department of Gynaecology and Obstetrics, First Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Rui Lin
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Jinwei Guo
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China; Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, China
| | - Gang Yu
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China; Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, China
| | - Yineng Xu
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Xiangzhai Tan
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Kaiqi Xie
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China; Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, China
| | - Yingbi Zhou
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China.
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30
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Mishima T, Hosono K, Tanabe M, Ito Y, Majima M, Narumiya S, Miyaji K, Amano H. Thromboxane prostanoid signaling in macrophages attenuates lymphedema and facilitates lymphangiogenesis in mice : TP signaling and lymphangiogenesis. Mol Biol Rep 2023; 50:7981-7993. [PMID: 37540456 PMCID: PMC10520203 DOI: 10.1007/s11033-023-08620-0] [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: 04/26/2023] [Accepted: 06/21/2023] [Indexed: 08/05/2023]
Abstract
BACKGROUND Accumulating evidence suggests that prostaglandin E2, an arachidonic acid (AA) metabolite, enhances lymphangiogenesis in response to inflammation. However, thromboxane A2 (TXA2), another AA metabolite, is not well known. Thus, this study aimed to determine the role of thromboxane prostanoid (TP) signaling in lymphangiogenesis in secondary lymphedema. METHODS AND RESULTS Lymphedema was induced by the ablation of lymphatic vessels in mouse tails. Compared with wild-type mice, tail lymphedema in Tp-deficient mice was enhanced, which was associated with suppressed lymphangiogenesis as indicated by decreased lymphatic vessel area and pro-lymphangiogenesis-stimulating factors. Numerous macrophages were found in the tail tissues of Tp-deficient mice. Furthermore, the deletion of TP in macrophages increased tail edema and decreased lymphangiogenesis and pro-lymphangiogenic cytokines, which was accompanied by increased numbers of macrophages and gene expression related to a pro-inflammatory macrophage phenotype in tail tissues. In vivo microscopic studies revealed fluorescent dye leakage in the lymphatic vessels in the wounded tissues. CONCLUSIONS The results suggest that TP signaling in macrophages promotes lymphangiogenesis and prevents tail lymphedema. TP signaling may be a therapeutic target for improving lymphedema-related symptoms by enhancing lymphangiogenesis.
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Affiliation(s)
- Toshiaki Mishima
- Department of Cardiovascular Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Kanako Hosono
- Pharmacology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Kanagawa, 252-0374, Japan
| | - Mina Tanabe
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Kanagawa, 252-0374, Japan
| | - Yoshiya Ito
- Pharmacology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan.
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Kanagawa, 252-0374, Japan.
- Department of Pharmacology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0374, Japan.
| | - Masataka Majima
- Department of Medical Therapeutics, Kanagawa Institute of Technology, Atsugi, Kanagawa, 243-0292, Japan
| | - Shuh Narumiya
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Kagami Miyaji
- Department of Cardiovascular Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hideki Amano
- Pharmacology, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Kanagawa, 252-0374, Japan
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31
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Xie W, Zhang C, Gao Q, Liu Y, Zhang H, Weng Q. Seasonal expressions of COX-1, COX-2, and EP4 in the scent glands of muskrats ( Ondatra zibethicus). Am J Physiol Regul Integr Comp Physiol 2023; 325:R238-R247. [PMID: 37358350 DOI: 10.1152/ajpregu.00113.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/16/2023] [Accepted: 06/21/2023] [Indexed: 06/27/2023]
Abstract
Prostaglandins (PGs) serve as signaling molecules that regulate various physiological processes, including inflammation, immune response, blood clotting, and reproduction. The aim of this study was to investigate the immunolocalizations and expression patterns of prostaglandin-E2 (PGE2), cyclooxygenase (COX)-1, and COX-2, as well as its receptor subtypes 4 (EP4) in the scent glands of muskrats (Ondatra zibethicus) during the breeding and nonbreeding periods. There were significant seasonal differences in the scent glandular mass, with higher values in the breeding season and relatively low in the nonbreeding season. PGE2, EP4, COX-1, and COX-2 have been immunolocalized in the scent glandular and epithelial cells in both breeding and nonbreeding seasons, whereas no immunostaining was observed in the interstitial cells. The protein and mRNA expression levels of EP4, COX-1, and COX-2 were higher in the scent glands of the breeding season than those of the nonbreeding season. The mean mRNA levels of EP4, COX-1, and COX-2 were positively correlated with the scent glandular weights. The circulating follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone (T), and PGE2, as well as scent glandular PGE2 and dihydrotestosterone (DHT) concentrations, were also significantly higher in the breeding season. In addition, the transcriptomic study in the scent glands identified that differentially expressed genes might be related to fatty carboxylic monocarboxylic acid, steroidogenic-related pathways, and prostanoid metabolic processes. These findings suggested that prostaglandin-E2 might play an essential autocrine or paracrine role in regulating seasonal changes in the scent glandular functions of the muskrats.
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Affiliation(s)
- Wenqian Xie
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Chaoran Zhang
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Qingjing Gao
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Yuning Liu
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Haolin Zhang
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Qiang Weng
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
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Kubota H, Kunisawa K, Wulaer B, Hasegawa M, Kurahashi H, Sakata T, Tezuka H, Kugita M, Nagao S, Nagai T, Furuyashiki T, Narumiya S, Saito K, Nabeshima T, Mouri A. High salt induces cognitive impairment via the interaction of the angiotensin II-AT 1 and prostaglandin E2-EP 1 systems. Br J Pharmacol 2023; 180:2393-2411. [PMID: 37076133 DOI: 10.1111/bph.16093] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND AND PURPOSE High salt (HS) intake has been associated with hypertension and cognitive impairment. It is well known that the angiotensin II (Ang II)-AT1 receptor and prostaglandin E2 (PGE2)-EP1 receptor systems are involved in hypertension and neurotoxicity. However, the involvement of these systems in HS-mediated hypertension and emotional and cognitive impairments remains unclear. EXPERIMENTAL APPROACH Mice were loaded with HS solution (2% NaCl drinking water) for 12 weeks, and blood pressure was monitored. Subsequently, effects of HS intake on emotional and cognitive function and tau phosphorylation in the prefrontal cortex (PFC) and hippocampus (HIP) were investigated. The involvement of Ang II-AT1 and PGE2-EP1 systems in HS-induced hypertension and neuronal and behavioural impairments was examined by treatment with losartan, an AT1 receptor blocker (ARB), or EP1 gene knockout. KEY RESULTS We demonstrate that hypertension and impaired social behaviour and object recognition memory following HS intake may be associated with tau hyperphosphorylation, decreased phosphorylation of Ca2+ /calmodulin-dependent protein kinase II (CaMKII), and postsynaptic density protein 95 (PSD95) expression in the PFC and HIP of mice. These changes were blocked by pharmacological treatment with losartan or EP1 receptor gene knockout. CONCLUSIONS AND IMPLICATIONS Our findings suggest that the interaction of Ang II-AT1 receptor and PGE2-EP1 receptor systems could be novel therapeutic targets for hypertension-induced cognitive impairment.
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Affiliation(s)
- Hisayoshi Kubota
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
| | - Kazuo Kunisawa
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
| | - Bolati Wulaer
- Laboratory of Health and Medical Science Innovation (HMSI), Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
| | - Masaya Hasegawa
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
| | - Hitomi Kurahashi
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
| | - Takatoshi Sakata
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
| | - Hiroyuki Tezuka
- Department of Cellular Function Analysis, Research Promotion and Support Headquarters, Fujita Health University, Toyoake, Aichi, Japan
| | - Masanori Kugita
- Education and Research Facility of Animal Models for Human Diseases, Center for Research Promotion and Support, Fujita Health University, Toyoake, Aichi, Japan
| | - Shizuko Nagao
- Education and Research Facility of Animal Models for Human Diseases, Center for Research Promotion and Support, Fujita Health University, Toyoake, Aichi, Japan
| | - Taku Nagai
- Division of Behavioral Neuropharmacology International Center for Brain Science (ICBS), Fujita Health University, Toyoake, Aichi, Japan
| | - Tomoyuki Furuyashiki
- Division of Pharmacology, Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan
| | - Shuh Narumiya
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan
| | - Kuniaki Saito
- Laboratory of Health and Medical Science Innovation (HMSI), Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
- Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
- Japanese Drug Organization of Appropriate Use and Research, Nagoya, Aichi, Japan
| | - Toshitaka Nabeshima
- Laboratory of Health and Medical Science Innovation (HMSI), Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
- Japanese Drug Organization of Appropriate Use and Research, Nagoya, Aichi, Japan
| | - Akihiro Mouri
- Department of Regulatory Science for Evaluation & Development of Pharmaceuticals & Devices, Fujita Health University Graduate School of Health Science, Toyoake, Aichi, Japan
- Japanese Drug Organization of Appropriate Use and Research, Nagoya, Aichi, Japan
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Honda T, Kabashima K, Kunisawa J. Exploring the roles of prostanoids, leukotriens, and dietary fatty acids in cutaneous inflammatory diseases: Insights from pharmacological and genetic approaches. Immunol Rev 2023; 317:95-112. [PMID: 36815685 DOI: 10.1111/imr.13193] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Prostanoids and leukotrienes (LTs) are representative of ω6 fatty acid-derived metabolites that exert their actions through specific receptors on the cell surface. These lipid mediators, being unstable in vivo, act locally at their production sites; thus, their physiological functions remain unclear. However, recent pharmacological and genetic approaches using experimental murine models have provided significant insights into the roles of these lipid mediators in various pathophysiological conditions, including cutaneous inflammatory diseases. These lipid mediators act not only through signaling by themselves but also by potentiating the signaling of other chemical mediators, such as cytokines and chemokines. For instance, prostaglandin E2 -EP4 and LTB4 -BLT1 signaling on cutaneous dendritic cells substantially facilitate their chemokine-induced migration ability into the skin and play critical roles in the priming and/or activation of antigen-specific effector T cells in the skin. In addition to these ω6 fatty acid-derived metabolites, various ω3 fatty acid-derived metabolites regulate skin immune cell functions, and some exert potent anti-inflammatory functions. Lipid mediators act as modulators of cutaneous immune responses, and manipulating the signaling from lipid mediators has the potential as a novel therapeutic approach for human skin diseases.
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Affiliation(s)
- Tetsuya Honda
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Singapore Immunology Network (SIgN), Agency for Science, Technology, and Research (A*STAR), Biopolis, Singapore, Singapore
- 5. A*Star Skin Research Labs (A*SRL), Agency for Science, Technology, and Research (A*STAR), Biopolis, Singapore, Singapore
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, Collaborative Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
- International Vaccine Design Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Graduate School of Medicine, Graduate School of Dentistry, Graduate School of Pharmaceutical Sciences, Graduate School of Science, Osaka University, Osaka, Japan
- Department of Microbiology and Immunology, Graduate School of Medicine, Kobe University, Kobe, Japan
- Research Organization for Nano and Life Innovation, Waseda University, Tokyo, Japan
- Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Kitamura N, Yamamoto Y, Yamamoto N, Murase T. Rosmarinic acid ameliorates HCl-induced cystitis in rats. PLoS One 2023; 18:e0288813. [PMID: 37463180 DOI: 10.1371/journal.pone.0288813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 06/26/2023] [Indexed: 07/20/2023] Open
Abstract
Shiso (Perilla frutescens var crispa f. purprea) is a traditional medicinal herb that exerts anti-inflammatory effects and alleviates lower urinary tract symptoms. In this study, we examined the effects of rosmarinic acid, a major polyphenol in shiso, on urinary function and the bladder in a rat hydrochloric acid-induced cystitis model. Sprague-Dawley rats were administered intravesically with hydrochloric acid or saline solution (control) to induce cystitis. Afterwards, the rats were administered orally with distilled water or rosmarinic acid for three days and then the intravesical pressure was measured, a stretch stimulation test was performed using the harvested bladder, and histological and biochemical analyses were performed. In addition, we investigated the effects of rosmarinic acid on the expression of inflammation-related molecules in normal human bladder epithelial cells. Rosmarinic acid ameliorated hydrochloric acid-induced shortening of micturition interval by 49%. In hydrochloric acid-treated bladders, significantly more prostaglandin E2 was released after stretching; however, rosmarinic acid suppressed its release to control levels. Rosmarinic acid also reduced hydrochloric acid-induced epithelial thickening and the levels of inflammatory molecules in the bladder. Furthermore, rosmarinic acid suppressed interleukin 1β-induced increases in Cox2 and Il6 expression in bladder epithelial cells. These findings indicate that rosmarinic acid can ameliorate hydrochloric acid-induced cystitis in rats and that these effects are due, at least in part, to its anti-inflammatory effects on the bladder and inhibition of stretch-induced prostaglandin E2 release.
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Affiliation(s)
- Naoya Kitamura
- Biological Science Research, Kao Corporation, Tochigi, Japan
| | | | - Naoki Yamamoto
- Biological Science Research, Kao Corporation, Tochigi, Japan
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Socha MW, Flis W, Pietrus M, Wartęga M. Results of Induction of Labor with Prostaglandins E1 and E2 (The RIPE Study): A Real-World Data Analysis of Obstetrical Effectiveness and Clinical Outcomes of Pharmacological Induction of Labor with Vaginal Inserts. Pharmaceuticals (Basel) 2023; 16:982. [PMID: 37513894 PMCID: PMC10384291 DOI: 10.3390/ph16070982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
Despite extensive knowledge of the mechanisms responsible for childbirth, the course of labor induction is often unpredictable. Therefore, labor induction protocols using prostaglandin analogs have been developed and tested to assess their effectiveness in labor induction unequivocally. A total of 402 women were collected into two groups-receiving vaginal Misoprostol or vaginal Dinoprostone for induction of labor (IOL). Then, the patients were compared in groups depending on the agent they received and their gestational age. Most patients delivered within 48 h, and most of these patients had vaginal parturition. Patients who received the Dinoprostone vaginal insert required statistically significantly more oxytocin administration than patients who received the Misoprostol vaginal insert. Patients who received the Misoprostol vaginal insert used anesthesia during labor statistically more often. Patients who received Misoprostol vaginal inserts had a statistically significantly shorter time to delivery than those with Dinoprostone vaginal inserts. The prevalence of hyperstimulation was similar in all groups and remained low. Vaginal Misoprostol-based IOL is characterized by a shortened time to delivery irrespective of the parturition type, and a lower need for oxytocin augmentation, but also by an increased demand for intrapartum analgesia administration. A vaginal Dinoprostone-based IOL protocol might be considered a more harmonious and desirable option in modern perinatal care.
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Affiliation(s)
- Maciej W Socha
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland
- Department of Obstetrics and Gynecology, St. Adalbert's Hospital in Gdańsk, Copernicus Healthcare Entity, Jana Pawła II 50, 80-462 Gdańsk, Poland
| | - Wojciech Flis
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland
- Department of Obstetrics and Gynecology, St. Adalbert's Hospital in Gdańsk, Copernicus Healthcare Entity, Jana Pawła II 50, 80-462 Gdańsk, Poland
| | - Miłosz Pietrus
- Department of Gynecology and Oncology, Jagiellonian University Medical College, 31-501 Kraków, Poland
| | - Mateusz Wartęga
- Department of Pathophysiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie- Skłodowskiej 9, 85-094 Bydgoszcz, Poland
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Socha MW, Flis W, Wartęga M, Stankiewicz M, Kunicka A. The Efficacy of Misoprostol Vaginal Inserts for Induction of Labor in Women with Very Unfavorable Cervices. J Clin Med 2023; 12:4106. [PMID: 37373798 DOI: 10.3390/jcm12124106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/11/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND The purpose of the present study was to evaluate the effectiveness of a misoprostol vaginal insert as an induction-of-labor (IOL) agent in women with an unfavorable cervix (Bishop score < 2) in achieving vaginal delivery (VD) within 48 h, depending on the gestational week, with particular emphasis on the cesarean section (CS) percentage, intrapartum analgesia application and possible side effects, such as tachysystole ratio. METHODS In this retrospective observational study involving 6000 screened pregnant patients, 190 women (3%) fulfilled the study inclusion criteria and underwent vaginal misoprostol IOL. The pregnant women were collected into three groups: patients who delivered at up to 37 weeks of gestation (<37 Group)-42 patients; patients who delivered between 37 and 41 weeks of gestation (37-41 Group)-76 patients; and patients who delivered after 41 weeks of gestation (41+ Group)-72 patients. The outcomes included time to delivery and mode of delivery, rate of tachysystole, need for intrapartum analgesia, and need for oxytocin augmentation. RESULTS Most of the patients delivered vaginally (54.8% in <37 Group vs. 57.9% in 37-41 Group vs. 61.1% in 41+ Group). A total of 89.5% (170/190) of patients delivered within 48 h (<37 Group-78.6% vs. 37-41 Group-89.5% vs. 41+ Group-95.8%). Statistical significance was demonstrated for the increased rate of vaginal deliveries and shortened time to delivery in the 41+ weeks group (p = 0.0026 and p = 0.0038). The indications for cesarean section were as follows: abnormal CTG pattern vs. lack of labor progression: 42.1% vs. 57.9% in <37 Group, 59.4% vs. 40.6% in 37-41 Group and 71.4% vs. 28.6% in 41+ Group. Statistical significance was demonstrated for the increased rate of abnormal CTG patterns as cesarean section indications in the 41+ Group (p = 0.0019). The need for oxytocin augmentation in each group was: 35.7% in <37 Group vs. 19.7% in 37-41 Group vs. 11.1% in 41+ Group. Statistical significance was shown for decreased need for oxytocin augmentation in +41 Group (p = 0.0016). The need for intrapartum anesthesia, depending on the group, was: 78.6% in <37 Group vs. 82.9% in 37-41 Group vs. 83.3% in 41+ Group. Statistical significance was demonstrated for increased need for intrapartum anesthesia application during labor in +41 Group (p = 0.0018). The prevalence of hyperstimulation was similar in all three groups (4.8% vs. 7.9% vs. 5.6% p > 0.05). CONCLUSIONS The misoprostol vaginal regimen for IOL used in our study is effective in achieving vaginal delivery within 48 h. In post-term women, the use of this regimen is characterized by an increased rate of vaginal deliveries, a shorter time to delivery and a lower need for oxytocin.
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Affiliation(s)
- Maciej W Socha
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland
- Department of Obstetrics and Gynecology, St. Adalbert's Hospital in Gdańsk, Copernicus Healthcare Entity, Jana Pawła II 50, 80-462 Gdańsk, Poland
| | - Wojciech Flis
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland
- Department of Obstetrics and Gynecology, St. Adalbert's Hospital in Gdańsk, Copernicus Healthcare Entity, Jana Pawła II 50, 80-462 Gdańsk, Poland
| | - Mateusz Wartęga
- Department of Pathophysiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie-Skłodowskiej 9, 85-094 Bydgoszcz, Poland
| | - Martyna Stankiewicz
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland
| | - Aleksandra Kunicka
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland
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Nie JZ, Wang MT, Nie D. Regulations of Tumor Microenvironment by Prostaglandins. Cancers (Basel) 2023; 15:3090. [PMID: 37370700 PMCID: PMC10296267 DOI: 10.3390/cancers15123090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Prostaglandins, the bioactive lipids generated from the metabolism of arachidonic acid through cyclooxygenases, have potent effects on many constituents of tumor microenvironments. In this review, we will describe the formation and activities of prostaglandins in the context of the tumor microenvironment. We will discuss the regulation of cancer-associated fibroblasts and immune constituents by prostaglandins and their roles in immune escapes during tumor progression. The review concludes with future perspectives on improving the efficacy of immunotherapy through repurposing non-steroid anti-inflammatory drugs and other prostaglandin modulators.
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Affiliation(s)
- Jeffrey Z. Nie
- Department of Medical Microbiology, Immunology and Cell Biology, School of Medicine, Simmons Cancer Institute, Southern Illinois University, Springfield, IL 62702, USA
| | - Man-Tzu Wang
- Hillman Cancer Center, University of Pittsburg School of Medicine, Pittsburg, PA 15232, USA
| | - Daotai Nie
- Department of Medical Microbiology, Immunology and Cell Biology, School of Medicine, Simmons Cancer Institute, Southern Illinois University, Springfield, IL 62702, USA
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Stanger L, Holinstat M. Bioactive lipid regulation of platelet function, hemostasis, and thrombosis. Pharmacol Ther 2023; 246:108420. [PMID: 37100208 PMCID: PMC11143998 DOI: 10.1016/j.pharmthera.2023.108420] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/15/2023] [Accepted: 04/17/2023] [Indexed: 04/28/2023]
Abstract
Platelets are small, anucleate cells in the blood that play a crucial role in the hemostatic response but are also implicated in the pathophysiology of cardiovascular disease. It is widely appreciated that polyunsaturated fatty acids (PUFAs) play an integral role in the function and regulation of platelets. PUFAs are substrates for oxygenase enzymes cyclooxygenase-1 (COX-1), 5-lipoxygenase (5-LOX), 12-lipoxygenase (12-LOX) and 15-lipoxygenase (15-LOX). These enzymes generate oxidized lipids (oxylipins) that exhibit either pro- or anti-thrombotic effects. Although the effects of certain oxylipins, such as thromboxanes and prostaglandins, have been studied for decades, only one oxylipin has been therapeutically targeted to treat cardiovascular disease. In addition to the well-known oxylipins, newer oxylipins that demonstrate activity in the platelet have been discovered, further highlighting the expansive list of bioactive lipids that can be used to develop novel therapeutics. This review outlines the known oxylipins, their activity in the platelet, and current therapeutics that target oxylipin signaling.
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Affiliation(s)
- Livia Stanger
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI, United States of America
| | - Michael Holinstat
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI, United States of America; Department of Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, Ann Arbor, MI, United States of America.
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Kitayama E, Kimura M, Ouchi T, Furusawa M, Shibukawa Y. Functional Expression of IP, 5-HT 4, D 1, A 2A, and VIP Receptors in Human Odontoblast Cell Line. Biomolecules 2023; 13:879. [PMID: 37371459 DOI: 10.3390/biom13060879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/26/2023] [Accepted: 05/18/2023] [Indexed: 06/29/2023] Open
Abstract
Odontoblasts are involved in sensory generation as sensory receptor cells and in dentin formation. We previously reported that an increase in intracellular cAMP levels by cannabinoid 1 receptor activation induces Ca2+ influx via transient receptor potential vanilloid subfamily member 1 channels in odontoblasts, indicating that intracellular cAMP/Ca2+ signal coupling is involved in dentinal pain generation and reactionary dentin formation. Here, intracellular cAMP dynamics in cultured human odontoblasts were investigated to understand the detailed expression patterns of the intracellular cAMP signaling pathway activated by the Gs protein-coupled receptor and to clarify its role in cellular functions. The presence of plasma membrane Gαs as well as prostaglandin I2 (IP), 5-hydroxytryptamine 5-HT4 (5-HT4), dopamine D1 (D1), adenosine A2A (A2A), and vasoactive intestinal polypeptide (VIP) receptor immunoreactivity was observed in human odontoblasts. In the presence of extracellular Ca2+, the application of agonists for the IP (beraprost), 5-HT4 (BIMU8), D1 (SKF83959), A2A (PSB0777), and VIP (VIP) receptors increased intracellular cAMP levels. This increase in cAMP levels was inhibited by the application of the adenylyl cyclase (AC) inhibitor SQ22536 and each receptor antagonist, dose-dependently. These results suggested that odontoblasts express Gs protein-coupled IP, 5-HT4, D1, A2A, and VIP receptors. In addition, activation of these receptors increased intracellular cAMP levels by activating AC in odontoblasts.
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Affiliation(s)
- Eri Kitayama
- Department of Physiology, Tokyo Dental College, 2-9-18, Kanda-Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
- Department of Endodontics, Tokyo Dental College, 2-9-18, Kanda-Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Maki Kimura
- Department of Physiology, Tokyo Dental College, 2-9-18, Kanda-Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Takehito Ouchi
- Department of Physiology, Tokyo Dental College, 2-9-18, Kanda-Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Masahiro Furusawa
- Department of Endodontics, Tokyo Dental College, 2-9-18, Kanda-Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Yoshiyuki Shibukawa
- Department of Physiology, Tokyo Dental College, 2-9-18, Kanda-Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
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Bruno A, Tacconelli S, Contursi A, Ballerini P, Patrignani P. Cyclooxygenases and platelet functions. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2023; 97:133-165. [PMID: 37236757 DOI: 10.1016/bs.apha.2022.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Cyclooxygenase (COX) isozymes, i.e., COX-1 and COX-2, are encoded by separate genes and are involved in the generation of the same products, prostaglandin (PG)G2 and PGH2 from arachidonic acid (AA) by the COX and peroxidase activities of the enzymes, respectively. PGH2 is then transformed into prostanoids in a tissue-dependent fashion due to the different expression of downstream synthases. Platelets present almost exclusively COX-1, which generates large amounts of thromboxane (TX)A2, a proaggregatory and vasoconstrictor mediator. This prostanoid plays a central role in atherothrombosis, as shown by the benefit of the antiplatelet agent low-dose aspirin, a preferential inhibitor of platelet COX-1. Recent findings have shown the relevant role played by platelets and TXA2 in developing chronic inflammation associated with several diseases, including tissue fibrosis and cancer. COX-2 is induced in response to inflammatory and mitogenic stimuli to generate PGE2 and PGI2 (prostacyclin), in inflammatory cells. However, PGI2 is constitutively expressed in vascular cells in vivo and plays a crucial role in protecting the cardiovascular systems due to its antiplatelet and vasodilator effects. Here, platelets' role in regulating COX-2 expression in cells of the inflammatory microenvironment is described. Thus, the selective inhibition of platelet COX-1-dependent TXA2 by low-dose aspirin prevents COX-2 induction in stromal cells leading to antifibrotic and antitumor effects. The biosynthesis and functions of other prostanoids, such as PGD2, and isoprostanes, are reported. In addition to aspirin, which inhibits platelet COX-1 activity, possible strategies to affect platelet functions by influencing platelet prostanoid receptors or synthases are discussed.
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Affiliation(s)
- Annalisa Bruno
- Center for Advanced Studies and Technology (CAST), Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G. d'Annunzio" University, Chieti, Italy
| | - Stefania Tacconelli
- Center for Advanced Studies and Technology (CAST), Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G. d'Annunzio" University, Chieti, Italy
| | - Annalisa Contursi
- Center for Advanced Studies and Technology (CAST), Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G. d'Annunzio" University, Chieti, Italy
| | - Patrizia Ballerini
- Center for Advanced Studies and Technology (CAST), Chieti, Italy; Department of Innovative Technologies in Medicine and Dentistry, "G.d'Annunzio" University, Chieti, Italy
| | - Paola Patrignani
- Center for Advanced Studies and Technology (CAST), Chieti, Italy; Department of Neuroscience, Imaging and Clinical Science, "G. d'Annunzio" University, Chieti, Italy.
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Mercer MA, Davis JL, McKenzie HC. The Clinical Pharmacology and Therapeutic Evaluation of Non-Steroidal Anti-Inflammatory Drugs in Adult Horses. Animals (Basel) 2023; 13:1597. [PMID: 37238029 PMCID: PMC10215112 DOI: 10.3390/ani13101597] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/19/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023] Open
Abstract
This review firstly examines the underlying pathophysiology of pain and inflammation associated with orthopedic disease and endotoxemia. Then, it reviews the clinical pharmacology (pharmacokinetics and pharmacodynamics) of both conventional and non-conventional NSAIDs in the adult horse, and finally provides an overview of different modalities to evaluate the therapeutic efficacy of NSAIDs in research.
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Affiliation(s)
- Melissa A. Mercer
- Department of Biological Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Blacksburg, VA 24061, USA
| | - Jennifer L. Davis
- Department of Biological Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Blacksburg, VA 24061, USA
| | - Harold C. McKenzie
- Department of Large Animal Clinical Sciences, Virginia Maryland College of Veterinary Medicine, Blacksburg, VA 24061, USA
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Majima M, Hosono K, Ito Y, Amano H, Nagashima Y, Matsuda Y, Watanabe SI, Nishimura H. A biologically active lipid, thromboxane, as a regulator of angiogenesis and lymphangiogenesis. Biomed Pharmacother 2023; 163:114831. [PMID: 37150029 DOI: 10.1016/j.biopha.2023.114831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/13/2023] [Accepted: 04/30/2023] [Indexed: 05/09/2023] Open
Abstract
Thromboxane (TX) and prostaglandins are metabolites of arachidonic acid, a twenty-carbon unsaturated fatty acid, and have a variety of actions that are exerted via specific receptors. Angiogenesis is defined as the formation of new blood vessels from pre-existing vascular beds and is a critical component of pathological conditions, including inflammation and cancer. Lymphatic vessels play crucial roles in the regulation of interstitial fluid, immune surveillance, and the absorption of dietary fat from the intestine; and they are also involved in the pathogenesis of various diseases. Similar to angiogenesis, lymphangiogenesis, the formation of new lymphatic vessels, is a critical component of pathological conditions. The TP-dependent accumulation of platelets in microvessels has been reported to enhance angiogenesis under pathological conditions. Although the roles of some growth factors and cytokines in angiogenesis and lymphangiogenesis have been well characterized, accumulating evidence suggests that TX induces the production of proangiogenic and prolymphangiogenic factors through the activation of adenylate cyclase, and upregulates angiogenesis and lymphangiogenesis under disease conditions. In this review, we discuss the role of TX as a regulator of angiogenesis and lymphangiogenesis, and its emerging importance as a therapeutic target.
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Affiliation(s)
- Masataka Majima
- Department of Medical Therapeutics, Kanagawa Institute of Technology, 1030 Shimo-Ogino, Atsugi, Kanagawa 243-0292, Japan; Department of Pharmacology, Kitasato University School of Medicine and Department of Molecular Pharmacology, Kitasato University Graduate School of Medical Sciences, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan.
| | - Kanako Hosono
- Department of Pharmacology, Kitasato University School of Medicine and Department of Molecular Pharmacology, Kitasato University Graduate School of Medical Sciences, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
| | - Yoshiya Ito
- Department of Pharmacology, Kitasato University School of Medicine and Department of Molecular Pharmacology, Kitasato University Graduate School of Medical Sciences, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
| | - Hideki Amano
- Department of Pharmacology, Kitasato University School of Medicine and Department of Molecular Pharmacology, Kitasato University Graduate School of Medical Sciences, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0374, Japan
| | - Yoshinao Nagashima
- Department of Medical Therapeutics, Kanagawa Institute of Technology, 1030 Shimo-Ogino, Atsugi, Kanagawa 243-0292, Japan; Tokyo Research Laboratories, Kao Corporation, 2-1-3, Bunka, Sumida-ku, Tokyo 131-8501, Japan
| | - Yasuhiro Matsuda
- Department of Life Support Engineering, Kanagawa Institute of Technology, 1030 Shimo-Ogino, Atsugi, Kanagawa 243-0292, Japan
| | - Shin-Ichi Watanabe
- Department of Exercise Physiology and Health Sciences, Kanagawa Institute of Technology, 1030 Shimo-Ogino, Atsugi, Kanagawa 243-0292, Japan
| | - Hironobu Nishimura
- Department of Biological Information, Faculty of Health and Medical Sciences, Kanagawa Institute of Technology, 1030 Shimo-Ogino, Atsugi, Kanagawa 243-0292, Japan
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Kumei S, Ishioh M, Nozu T, Okumura T. Prostaglandin I 2 suppresses the development of gut-brain axis disorder in irritable bowel syndrome in rats. Biochim Biophys Acta Gen Subj 2023; 1867:130344. [PMID: 36889449 DOI: 10.1016/j.bbagen.2023.130344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/30/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
In this study, we attempted to clarify a role of prostaglandin (PG) I2 and its specific receptor, IP in the pathogenesis of irritable bowel syndrome (IBS) using a maternal separation (MS)-induced IBS model. Administration of beraprost (BPS), a specific IP agonist, improved visceral hypersensitivity and depressive state with decreased serum CRF level in the IBS rats. To clarify the mechanism of the effect of BPS, we performed serum metabolome analysis and 1-methylnicotinamide (1-MNA) was identified as a possible candidate for a clue metabolite of pathogenesis of IBS. The serum 1-MNA levels revealed inverse correlation to the level of visceral sensitivity, and positive correlation to a depression marker, immobilizing time. Administration of 1-MNA induced visceral hypersensitivity and depression with increased levels of serum CRF. Since fecal 1-MNA is known for a marker of dysbiosis, we examined the composition of fecal microbiota by T-RFLP analysis. The proportion of clostridium cluster XI, XIVa and XVIII was significantly changed in MS-induced IBS rats treated with BPS. Fecal microbiota transplant of BPS-treated rats improved visceral hypersensitivity and depression in IBS rats. These results suggest for the first time that PGI2-IP signaling plays an important role in IBS phenotypes such as visceral hypersensitivity and depressive state. BPS modified microbiota, thereby inhibition of 1-MNA-CRF pathway, followed by improvement of MS-induced IBS phenotype. These results suggest that the PGI2-IP signaling could be considered to be a therapeutic option for IBS.
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Affiliation(s)
- Shima Kumei
- Department of General Medicine, Asahikawa Medical University, Japan
| | - Masatomo Ishioh
- Department of General Medicine, Asahikawa Medical University, Japan; Division of Metabolism, Biosystemic Science, Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Japan
| | - Tsukasa Nozu
- Department of Regional Medicine and Education, Asahikawa Medical University, Japan
| | - Toshikatsu Okumura
- Department of General Medicine, Asahikawa Medical University, Japan; Division of Metabolism, Biosystemic Science, Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Japan.
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Finetti F, Paradisi L, Bernardi C, Pannini M, Trabalzini L. Cooperation between Prostaglandin E2 and Epidermal Growth Factor Receptor in Cancer Progression: A Dual Target for Cancer Therapy. Cancers (Basel) 2023; 15:cancers15082374. [PMID: 37190301 DOI: 10.3390/cancers15082374] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/15/2023] [Accepted: 04/17/2023] [Indexed: 05/17/2023] Open
Abstract
It is recognized that prostaglandin E2 (PGE2) is one key lipid mediator involved in chronic inflammation, and it is directly implicated in tumor development by regulating cancer cell growth and migration, apoptosis, epithelial-mesenchymal transition, angiogenesis, and immune escape. In addition, the expression of the enzymes involved in PGE2 synthesis, cyclooxygenase 2 (COX-2) and microsomal prostaglandin E synthase 1 (mPGES1), positively correlates with tumor progression and aggressiveness, clearly indicating the crucial role of the entire pathway in cancer. Moreover, several lines of evidence suggest that the COX2/mPGES1/PGE2 inflammatory axis is involved in the modulation of epidermal growth factor receptor (EGFR) signaling to reinforce the oncogenic drive of EGFR activation. Similarly, EGFR activation promotes the induction of COX2/mPGES1 expression and PGE2 production. In this review, we describe the interplay between COX2/mPGES1/PGE2 and EGFR in cancer, and new therapeutic strategies that target this signaling pathway, to outline the importance of the modulation of the inflammatory process in cancer fighting.
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Affiliation(s)
- Federica Finetti
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Lucrezia Paradisi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Clizia Bernardi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Margherita Pannini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Lorenza Trabalzini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
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45
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Kanno T, Nakagawa N, Aonuma T, Kawabe JI, Yuhki KI, Takehara N, Hasebe N, Ushikubi F. Prostaglandin E 2 mediates the late phase of ischemic preconditioning in the heart via its receptor subtype EP 4. Heart Vessels 2023; 38:606-613. [PMID: 36522555 PMCID: PMC9986202 DOI: 10.1007/s00380-022-02219-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
Ischemic preconditioning (IPC) describes a phenomenon wherein brief ischemia of the heart induces a potent cardioprotective mechanism against succeeding ischemic insult. Cyclooxygenase-2 (COX-2), a rate-limiting enzyme in prostanoid biosynthesis, is upregulated in the ischemic heart and contributes to IPC. Prostaglandin E2 (PGE2) protects the heart from ischemia-reperfusion (I/R) injury via its receptor subtype EP4. We sought to clarify the role of the PGE2/EP4 system in the late phase of IPC. Mice were subjected to four IPC treatment cycles, consisting of 5 min of occlusion of the left anterior descending coronary artery (LAD). We found that COX-2 mRNA was significantly upregulated in wild-type hearts at 6 h after IPC treatment. Cardiac PGE2 levels at 24 h after IPC treatment were significantly increased in both wild-type mice and mice lacking EP4 (EP4-/-). At 24 h after IPC treatment, I/R injury was induced by 30 min of LAD occlusion followed by 2 h of reperfusion and the cardiac infarct size was determined. The infarct size was significantly reduced by IPC treatment in wild-type mice; a reduction was not observed in EP4-/- mice. AE1-329, an EP4 agonist, significantly reduced infarct size and significantly ameliorated deterioration of cardiac function in wild-type mice subjected to I/R without IPC treatment. Furthermore, AE1-329 significantly enhanced the I/R-induced activation of Akt, a pro-survival kinase. We demonstrated that the PGE2/EP4 system in the heart plays a critical role in the late phase of IPC, partly by augmenting Akt-mediated signaling. These findings clarify the mechanism of IPC and may contribute to the development of therapeutic strategies for ischemic heart disease.
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Affiliation(s)
- Takayasu Kanno
- Department of Pharmacology, Asahikawa Medical University, Asahikawa, Japan.,Division of Cardiology, Nephrology, Pulmonology and Neurology, Department of Internal Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa, Japan
| | - Naoki Nakagawa
- Division of Cardiology, Nephrology, Pulmonology and Neurology, Department of Internal Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa, Japan.
| | - Tatsuya Aonuma
- Division of Cardiology, Nephrology, Pulmonology and Neurology, Department of Internal Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa, Japan
| | - Jun-Ichi Kawabe
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan.,Division of Integrated Life Science, Department of Biochemistry, Asahikawa Medical University, Asahikawa, Japan
| | - Koh-Ichi Yuhki
- Department of Pharmacology, Asahikawa Medical University, Asahikawa, Japan
| | - Naofumi Takehara
- Division of Cardiology, Nephrology, Pulmonology and Neurology, Department of Internal Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa, Japan
| | - Naoyuki Hasebe
- Division of Cardiology, Nephrology, Pulmonology and Neurology, Department of Internal Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa, Japan.,Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan
| | - Fumitaka Ushikubi
- Department of Pharmacology, Asahikawa Medical University, Asahikawa, Japan
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46
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Ma H, Hong WS, Chen SX. A progestin regulates the prostaglandin pathway in the neuroendocrine system in female mudskipper Boleophthalmus pectinirostris. J Steroid Biochem Mol Biol 2023; 231:106300. [PMID: 36990161 DOI: 10.1016/j.jsbmb.2023.106300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 02/02/2023] [Accepted: 02/23/2023] [Indexed: 03/30/2023]
Abstract
Sex hormones regulate the reproductive cycle through brain-pituitary axis, but the molecular mechanism is still enigmatic. In the reproductive season, the mudskipper Boleophthalmus pectinirostris possesses a semilunar periodicity spawning rhythm, which coincides with the semilunar periodicity variations in 17α-hydroxyprogesterone, the precursor of 17α,20β-dihydroxy-4-pregnen-3-one (DHP), a sexual progestin in teleosts. In the present study, we investigated in vitro the brain transcriptional differences between DHP-treated tissues and control groups using RNA-seq. Differential expression analysis revealed that 2700 genes significantly differentially expressed, including 1532 up-regulated and 1168 down-regulated genes. The majority of prostaglandin pathway-related genes were dramatically up-regulated, especially the prostaglandin receptor 6 (ptger6). Tissue distribution analysis revealed that ptger6 gene was ubiquitously expressed. In situ hybridization results showed that ptger6, nuclear progestin receptor (pgr), and DHP-induced c-fos mRNA were co-expressed in the ventral telencephalic area, the ventral nucleus of ventral telencephalic area, the anterior part of parvocellular preoptic nucleus, the magnocellular part of magnocellular preoptic nucleus, the ventral zone of periventricular hypothalamus, the anterior tubercular nucleus, the periventricular nucleus of posterior tuberculum, and the torus longitudinalis. DHP significantly enhanced promoter activities of ptger6 via Pgr. Together, this study suggested that DHP regulates the prostaglandin pathway in the neuroendocrine system of teleost fish.
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Affiliation(s)
- He Ma
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Wang Shu Hong
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China; State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Xiamen University, Xiamen, 361102, China
| | - Shi Xi Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China; State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Xiamen University, Xiamen, 361102, China.
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Mlyczyńska E, Zaobidna E, Rytelewska E, Dobrzyń K, Kieżun M, Kopij G, Szymańska K, Kurowska P, Dall'Aglio C, Smolińska N, Kamiński T, Rak A. Expression and regulation of visfatin/NAMPT in the porcine corpus luteum during the estrous cycle and early pregnancy. Anim Reprod Sci 2023; 250:107212. [PMID: 36913896 DOI: 10.1016/j.anireprosci.2023.107212] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 02/23/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
Visfatin/NAMPT creates a hormonal link between energy metabolism and female reproduction. A recent study documented visfatin expression in the ovary and its action on follicular cells; however, the expression of visfatin in luteal cells is still unknown. The aim of this study, therefore, was to investigate the transcript and protein expression of visfatin as well as its immunolocalization in the corpus luteum (CL) and to examine the involvement of extracellular signal-regulated kinases (ERK1/2) in the regulation of visfatin level in response to LH, insulin, progesterone (P4), prostaglandin E2 (PGE2) and F2α (PGF2α). Corpora lutea were harvested from gilts on days 2-3, 10-12 and 14-16 of the estrous cycle and on days 10-11, 12-13, 15-16 and 27-28 of pregnancy. The current study demonstrated that visfatin expression depends on hormonal status related to the phase of the estrous cycle or early pregnancy. Visfatin was immunolocalized to the cytoplasm of small and large luteal cells. Moreover, visfatin protein abundance was increased by P4, and decreased by both prostaglandins, while LH and insulin have modulatory effects, depending on the phase of the cycle. Interestingly, LH, P4 and PGE2 effects were abolished in response to the inhibition of ERK1/2 kinase. Thus, this study demonstrated that expression of visfatin in the porcine CL is determined by the endocrine status related to the estrous cycle and early pregnancy and by the action of LH, insulin, P4 and prostaglandins via activation of the ERK1/2 pathway.
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Affiliation(s)
- Ewa Mlyczyńska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland; Doctoral School of Exact and Natural Sciences, Jagiellonian University in Krakow, Poland
| | - Ewa Zaobidna
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Edyta Rytelewska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Kamil Dobrzyń
- Department of Zoology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Marta Kieżun
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Grzegorz Kopij
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Karolina Szymańska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Patrycja Kurowska
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
| | - Cecylia Dall'Aglio
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Nina Smolińska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Tadeusz Kamiński
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Agnieszka Rak
- Laboratory of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland.
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48
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Bin NR, Prescott SL, Horio N, Wang Y, Chiu IM, Liberles SD. An airway-to-brain sensory pathway mediates influenza-induced sickness. Nature 2023; 615:660-667. [PMID: 36890237 PMCID: PMC10033449 DOI: 10.1038/s41586-023-05796-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 02/03/2023] [Indexed: 03/10/2023]
Abstract
Pathogen infection causes a stereotyped state of sickness that involves neuronally orchestrated behavioural and physiological changes1,2. On infection, immune cells release a 'storm' of cytokines and other mediators, many of which are detected by neurons3,4; yet, the responding neural circuits and neuro-immune interaction mechanisms that evoke sickness behaviour during naturalistic infections remain unclear. Over-the-counter medications such as aspirin and ibuprofen are widely used to alleviate sickness and act by blocking prostaglandin E2 (PGE2) synthesis5. A leading model is that PGE2 crosses the blood-brain barrier and directly engages hypothalamic neurons2. Here, using genetic tools that broadly cover a peripheral sensory neuron atlas, we instead identified a small population of PGE2-detecting glossopharyngeal sensory neurons (petrosal GABRA1 neurons) that are essential for influenza-induced sickness behaviour in mice. Ablating petrosal GABRA1 neurons or targeted knockout of PGE2 receptor 3 (EP3) in these neurons eliminates influenza-induced decreases in food intake, water intake and mobility during early-stage infection and improves survival. Genetically guided anatomical mapping revealed that petrosal GABRA1 neurons project to mucosal regions of the nasopharynx with increased expression of cyclooxygenase-2 after infection, and also display a specific axonal targeting pattern in the brainstem. Together, these findings reveal a primary airway-to-brain sensory pathway that detects locally produced prostaglandins and mediates systemic sickness responses to respiratory virus infection.
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Affiliation(s)
- Na-Ryum Bin
- Howard Hughes Medical Institute, Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Sara L Prescott
- Howard Hughes Medical Institute, Department of Cell Biology, Harvard Medical School, Boston, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Nao Horio
- Howard Hughes Medical Institute, Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Yandan Wang
- Howard Hughes Medical Institute, Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Isaac M Chiu
- Department of Immunology, Harvard Medical School, Boston, MA, USA
| | - Stephen D Liberles
- Howard Hughes Medical Institute, Department of Cell Biology, Harvard Medical School, Boston, MA, USA.
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49
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Prostaglandin E 2-Transporting Pathway and Its Roles via EP2/EP4 in Cultured Human Dental Pulp. J Endod 2023; 49:410-418. [PMID: 36758673 DOI: 10.1016/j.joen.2023.01.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 02/11/2023]
Abstract
INTRODUCTION Prostaglandin E2 (PGE2) exerts biological actions through its transport pathway involving intracellular synthesis, extracellular transport, and receptor binding. This study aimed to determine the localization of the components of the PGE2-transporting pathway in human dental pulp and explore the relevance of PGE2 receptors (EP2/EP4) to angiogenesis and dentinogenesis. METHODS Protein localization of microsomal PGE2 (mPGES)synthase, PGE2 transporters (multidrug resistance-associated protein-4 [MRP4] and prostaglandin transporter [PGT]), and EP2/EP4 was analyzed using double immunofluorescence staining. Tooth slices from human third molars were cultured with or without butaprost (EP2 agonist) or rivenprost (EP4 agonist) for 1 week. Morphometric analysis of endothelial cell filopodia was performed to evaluate angiogenesis, and real-time polymerase chain reaction was performed to evaluate angiogenesis and odontoblast differentiation markers. RESULTS MRP4 and PGT were colocalized with mPGES and EP2/EP4 in odontoblasts and endothelial cells. Furthermore, MRP4 was colocalized with mPGES and EP4 in human leukocyte antigen-DR-expressing dendritic cells. In the tooth slice culture, EP2/EP4 agonists induced significant increases in the number and length of filopodia and mRNA expression of angiogenesis markers (vascular endothelial growth factor and fibroblast growth factor-2) and odontoblast differentiation markers (dentin sialophosphoprotein and collagen type 1). CONCLUSIONS PGE2-producing enzyme (mPGES), transporters (MRP4 and PGT), and PGE2-specific receptors (EP2/EP4) were immunolocalized in various cellular components of the human dental pulp. EP2/EP4 agonists promoted endothelial cell filopodia generation and upregulated angiogenesis- and odontoblast differentiation-related genes, suggesting that PGE2 binding to EP2/EP4 is associated with angiogenic and dentinogenic responses.
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50
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Varghese N, Morrison B. Inhibition of cyclooxygenase and EP3 receptor improved long term potentiation in a rat organotypic hippocampal model of repeated blast traumatic brain injury. Neurochem Int 2023; 163:105472. [PMID: 36599378 DOI: 10.1016/j.neuint.2022.105472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/09/2022] [Accepted: 12/30/2022] [Indexed: 01/03/2023]
Abstract
Blast-induced traumatic brain injury (bTBI) is a health concern in military service members who are exposed to multiple blasts throughout their training and deployment. Our group has previously reported decreased long term potentiation (LTP) following repeated bTBI in a rat organotypic hippocampal slice culture (OHSC) model. In this study, we investigated changes in inflammatory markers like cyclooxygenase (COX) and tested the efficacy of COX or prostaglandin EP3 receptor (EP3R) inhibitors in attenuating LTP deficits. Expression of COX-2 was increased 48 h following repeated injury, whereas COX-1 expression was unchanged. EP3R expression was upregulated, and cyclic adenosine monophosphate (cAMP) concentration was decreased after repeated blast exposure. Post-traumatic LTP deficits improved after treatment with a COX-1 specific inhibitor, SC-560, a COX-2 specific inhibitor, rofecoxib, a pan-COX inhibitor, ibuprofen, or an EP3R inhibitor, L-798,106. Delayed treatment with ibuprofen and L-798,106 also prevented LTP deficits. These findings suggest that bTBI induced neuroinflammation may be responsible for some functional deficits that we have observed in injured OHSCs. Additionally, COX and EP3R inhibition may be viable therapeutic strategies to reduce neurophysiological deficits after repeated bTBI.
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Affiliation(s)
- Nevin Varghese
- Department of Biomedical Engineering, Columbia University, 1210 Amsterdam Avenue, New York, NY, 10027, USA.
| | - Barclay Morrison
- Department of Biomedical Engineering, Columbia University, 1210 Amsterdam Avenue, New York, NY, 10027, USA.
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