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Ueda H, Neyama H. Fibromyalgia Animal Models Using Intermittent Cold and Psychological Stress. Biomedicines 2023; 12:56. [PMID: 38255163 PMCID: PMC10813244 DOI: 10.3390/biomedicines12010056] [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: 11/14/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Fibromyalgia (FM) is a chronic pain condition characterized by widespread musculoskeletal pain and other frequent symptoms such as fatigue, sleep disturbance, cognitive impairment, and mood disorder. Based on the view that intermittent stress would be the most probable etiology for FM, intermittent cold- and intermittent psychological stress-induced generalized pain (ICGP and IPGP) models in mice have been developed and validated as FM-like pain models in terms of the patho-physiological and pharmacotherapeutic features that are shared with clinical versions. Both models show long-lasting and generalized pain and female-predominant sex differences after gonadectomy. Like many other neuropathic pain models, ICGP and IPGP were abolished in lysophosphatidic acid receptor 1 (LPAR1) knock-out mice or by LPAR1 antagonist treatments, although deciding the clinical importance of this mechanism depends on waiting for the development of a clinically available LPAR1 antagonist. On the other hand, the nonsteroidal anti-inflammatory drug diclofenac with morphine did not suppress hyperalgesia in these models, and this is consistent with the clinical findings. Pharmacological studies suggest that the lack of morphine analgesia is associated with opioid tolerance upon the stress-induced release of endorphins and subsequent counterbalance through anti-opioid NMDA receptor mechanisms. Regarding pharmacotherapy, hyperalgesia in both models was suppressed by pregabalin and duloxetine, which have been approved for FM treatment in clinic. Notably, repeated treatments with mirtazapine, an α2 adrenergic receptor antagonist-type antidepressant, and donepezil, a drug for treating Alzheimer's disease, showed potent therapeutic actions in these models. However, the pharmacotherapeutic treatment should be carried out 3 months after stress, which is stated in the FM guideline, and many preclinical studies, such as those analyzing molecular and cellular mechanisms, as well as additional evidence using different animal models, are required. Thus, the ICGP and IPGP models have the potential to help discover and characterize new therapeutic medicines that might be used for the radical treatment of FM, although there are several limitations to be overcome.
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Affiliation(s)
- Hiroshi Ueda
- Department of Pharmacology and Therapeutic Innovation, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8521, Japan;
- Department and Graduate Institute of Pharmacology, National Defense Medical Center, Taipei 114201, Taiwan
| | - Hiroyuki Neyama
- Department of Pharmacology and Therapeutic Innovation, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8521, Japan;
- Multiomics Platform, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
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Kim HW, Wang S, Davies AJ, Oh SB. The therapeutic potential of natural killer cells in neuropathic pain. Trends Neurosci 2023:S0166-2236(23)00133-9. [PMID: 37385878 DOI: 10.1016/j.tins.2023.05.008] [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: 03/15/2023] [Revised: 05/04/2023] [Accepted: 05/17/2023] [Indexed: 07/01/2023]
Abstract
Novel disease-modifying treatments for neuropathic pain are urgently required. The cellular immune response to nerve injury represents a promising target for therapeutic development. Recently, the role of natural killer (NK) cells in both CNS and PNS disease has been the subject of growing interest. In this opinion article, we set out the case for NK cell-based intervention as a promising avenue for development in the management of neuropathic pain. We explore the potential cellular and molecular targets of NK cells in the PNS by contrasting with their reported functional roles in CNS diseases, and we suggest strategies for using the beneficial functions of NK cells and immune-based therapeutics in the context of neuropathic pain.
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Affiliation(s)
- Hyoung Woo Kim
- Department of Neurobiology and Physiology, School of Dentistry, and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Shuaiwei Wang
- Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Alexander J Davies
- Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford, UK.
| | - Seog Bae Oh
- Department of Neurobiology and Physiology, School of Dentistry, and Dental Research Institute, Seoul National University, Seoul, Republic of Korea.
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Park JH, Cho SH, Kim R, Na SH, Kang ES, Yeom MY, Jang Y. Effect of pregabalin on nociceptive thresholds and immune responses in a mouse model of incisional pain. Korean J Pain 2021; 34:185-192. [PMID: 33785670 PMCID: PMC8019952 DOI: 10.3344/kjp.2021.34.2.185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/26/2020] [Accepted: 12/28/2020] [Indexed: 12/15/2022] Open
Abstract
Background It is known that some analgesics as well as pain can affect the immune system. The aim of this study was to investigate the analgesic effect and immunomodulation of pregabalin (PGB) in a mouse incisional pain model. Methods A postoperative pain model was induced by hind paw plantar incision in male BALB/c mice. Mice were randomly divided into four groups (n = 8) a saline-treated incision (incision), PGB-treated incision (PGB-incision), sham controls without incision or drug treatment (control), and a PGB-treated control (PGB-control). In the PGB treated groups, PGB was administered intraperitoneally (IP) 30 minutes before and 1 hour after the plantar incision. Changes of the mechanical nociceptive thresholds following incision were investigated. Mice were euthanized for spleen harvesting 12 hours after the plantar incision, and natural killer (NK) cytotoxicity to YAC 1 cells and lymphocyte proliferation responses to phytohemagglutinin were compared among these four groups. Results Mechanical nociceptive thresholds were decreased after plantar incision and IP PGB administration recovered these decreased mechanical nociceptive thresholds (P < 0.001). NK activity was increased by foot incision, but NK activity in the PGB-incision group was significantly lower than that in the Incision group (P < 0.001). Incisional pain increased splenic lymphocyte proliferation, but PGB did not alter this response. Conclusions Incisional pain alters cell immunity of the spleen in BALB/c mice. PGB showed antinocieptive effect on mouse incisional pain and attenuates the activation of NK cells in this painful condition. These results suggest that PGB treatment prevents increases in pain induced NK cell activity.
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Affiliation(s)
- Jung Hyun Park
- Department of Anesthesiology and Pain Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
| | - Seung Hee Cho
- Department of Anesthesiology and Pain Medicine, Catholic Medical Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Rip Kim
- Department of Anesthesiology and Pain Medicine, Catholic Medical Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sang Hoon Na
- Department of Anesthesiology and Pain Medicine, Catholic Medical Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Eun-Sun Kang
- Institute for Bio-Medical Convergence, The Catholic University of Korea, Incheon St. Mary's Hospital, Incheon, Korea
| | - Mi-Young Yeom
- Institute for Bio-Medical Convergence, The Catholic University of Korea, Incheon St. Mary's Hospital, Incheon, Korea
| | - Yeon Jang
- Department of Anesthesiology and Pain Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
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Farbstein D, Hollander N, Peled O, Apter A, Fennig S, Haberman Y, Gitman H, Yaniv I, Shkalim V, Pick CG, Benaroya-Milshtein N. Social isolation in mice: behavior, immunity, and tumor growth. Stress 2021; 24:229-238. [PMID: 32510284 DOI: 10.1080/10253890.2020.1777976] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The aim of this study was to investigate the behavioral, immunological, and neurological effects of long-term isolation in an animal model. Male C3H/eB mice wereraised in either social isolation or standard conditions for 6 weeks. At 10 weeks, each group was further divided into 3 sets. (A) Physical strength and behavior were evaluated with the grip strength, hot plate, staircase, and elevated plus-maze tests. Natural-killer cell activity and lymphocyte proliferation were measured. (B) Half the animals were subjected to electric shock with 3 reminders, and freezing time was evaluated at each reminder. Cortisone levels were evaluated after 16 weeks. (C)Mice were injected with 38 C-13 B lymphoma cells and followed for tumor size and survival. Strength evaluation yielded asignificantly lower body weight and grip strength in the socially isolated mice. Behavioral test results were similar in the two groups. The pattern of reactions to stress conditioning differed significantly, with the socially isolated mice showing an incline in freezing with each successive reminder, and the control mice showing a decline. The socially isolated mice had significantly attenuated tumor growth, with no significant difference in survival from control mice. There were no significant between-group differences in immunological parameters. In conclusion, social isolation serves as a model for chronic stress. It was associated with significant changes in stress conditioning reaction, resembling symptoms of post-traumatic stress disorder, and attenuated tumor development. No differences from controls were found in behavior tests, immune parameters, or survival after tumor cell inoculation.Lay summaryThis article explores biological and behavioral consequences of social isolation in a mice model. Our results show that social isolation leads to changes in the Hypothalamic-hypophyseal-adrenal axis, which in turn alter the response to stress. Additionally, social isolation was shown to impact tumor progression.
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Affiliation(s)
- Dan Farbstein
- Department of Psychiatry, Feinberg Child Study Center, Schneider Children's Medical Center of Israel, PetachTikva, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nurit Hollander
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Orit Peled
- Department of Pharmacy, Schneider Children's Medical Center, PetachTikva, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Alan Apter
- Department of Psychiatry, Feinberg Child Study Center, Schneider Children's Medical Center of Israel, PetachTikva, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Silvana Fennig
- Department of Psychiatry, Feinberg Child Study Center, Schneider Children's Medical Center of Israel, PetachTikva, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yael Haberman
- Department of Anatomy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Hila Gitman
- Department of Anatomy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Isaac Yaniv
- Department of Hemato-Oncology, Schneider Children's Medical Center of Israel, PetachTikva, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Vered Shkalim
- Department of Hemato-Oncology, Schneider Children's Medical Center of Israel, PetachTikva, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Chaim G Pick
- Department of Anatomy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Noa Benaroya-Milshtein
- Department of Psychiatry, Feinberg Child Study Center, Schneider Children's Medical Center of Israel, PetachTikva, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Anatomy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Liu W, Yu W, Weng Y, Wang Y, Sheng M. Dexmedetomidine ameliorates the inflammatory immune response in rats with acute kidney damage. Exp Ther Med 2017; 14:3602-3608. [PMID: 29042954 PMCID: PMC5639432 DOI: 10.3892/etm.2017.4954] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 01/26/2017] [Indexed: 12/12/2022] Open
Abstract
It has been demonstrated that dexmedetomidine (Dex) can protect patients with acute kidney injury from experiencing further tissue damage, however its mechanism of action remains unclear. The present study investigated the immune modulatory functions of Dex in rats with acute kidney injury (AKI) induced via injection of lipopolysaccharide into the tail vein. ELISA analysis showed that Dex reduced the levels of inflammatory cytokines in rats with AKI in a dose dependent manner. Furthermore, the regulatory effects of Dex on cytokine production disappeared when the α-2 adrenergic receptor antagonist Yohimbine (YOH) was added. For a detailed investigation on how Dex regulates the immune response in rats with AKI, the impact of Dex on the viability of splenocytes and lymphocytes was determined and it was determined that Dex did not influence splenocyte and lymphocyte viability. In addition, ELISA tests showed that Dex regulated the production of the T-helper (Th) 17 cytokines interleukin (IL)-17 and IL-23, but not the Th1 cytokine tumor necrosis factor α, in splenocytes and lymphocytes. To confirm whether Dex functioned as an α-2-adrenergic receptor in these immune regulations, YOH was administered together with Dex. When Dex and YOH were administered together, the regulatory functions of Dex were reduced, confirming that Dex acted as an agonist on the α-2-adrenergic receptor. Thus the results of the current study may provide novel insights regarding how Dex modulates immune functions in AKI.
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Affiliation(s)
- Weihua Liu
- Department of Anesthesiology, Tianjin First Center Hospital, Nankai, Tianjin 300192, P.R. China
| | - Wenli Yu
- Department of Anesthesiology, Tianjin First Center Hospital, Nankai, Tianjin 300192, P.R. China
| | - Yiqi Weng
- Department of Anesthesiology, Tianjin First Center Hospital, Nankai, Tianjin 300192, P.R. China
| | - Yongwang Wang
- Department of Anesthesiology, Tianjin First Center Hospital, Nankai, Tianjin 300192, P.R. China
| | - Mingwei Sheng
- Department of Anesthesiology, Tianjin First Center Hospital, Nankai, Tianjin 300192, P.R. China
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Khanna AK, Perez ER, Laudanski K, Moraska A, III KCC. Perioperative care and cancer recurrence: Is there a connection? World J Anesthesiol 2014; 3:31-45. [DOI: 10.5313/wja.v3.i1.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/13/2013] [Accepted: 02/18/2014] [Indexed: 02/06/2023] Open
Abstract
Cancer is the second most common cause of death in the United States. Metastatic disease is a more important cause of cancer-related death relative to primary tumor progression. Surgical excision is the primary treatment for most malignant tumors. However, surgery itself can inhibit important host defenses and promote the development of metastases. An altered balance between the metastatic potential of the tumor and the anti-metastatic host defenses, including cell-mediated immunity and natural killer cell function, is a plausible mechanism of increased cancer metastasis. This article reviews the increasingly recognized concept of anesthetic technique along with perioperative factors and their potential to affect long-term outcome after cancer surgery. The potential effect of intravenous anesthetics, volatile agents, local anesthetic drugs, opiates, and non-steroidal anti-inflammatory drugs are reviewed along with recent literature and ongoing clinical trials in this area. Regional anesthesia is increasingly emerging as a safer option with less cancer recurrence potential as compared to general anesthesia. Blood transfusion, pain, stress, use of beta-blockers, and hypothermia are other potentially important perioperative factors to consider.
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Jang Y, Yeom MY, Kang ES, Kang JW, Song HK. The antinociceptive effect of dexmedetomidine modulates spleen cell immunity in mice. Int J Med Sci 2014; 11:226-33. [PMID: 24516345 PMCID: PMC3917109 DOI: 10.7150/ijms.7897] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 12/24/2013] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Pain plays roles in both the nervous system and immune system. Changes in the neuroendocrine pathway under pain conditions give rise to sympathetic outflow with increased plasma catecholamines and activate immune reactions. Dexmedetomidine exerts sedative, analgesic, and anesthetic-sparing effects and is known to diminish pro-inflammatory processes by central sympatholytic effects. To investigate the influence of the analgesic effect of dexmedetomidine on immunomodulation under pain conditions, splenic natural killer (NK) tumoricidal cytotoxic activity, proliferative ability of T lymphocytes, and cytokine changes were assessed. METHODS After evaluation of the analgesic efficacy of dexmedetomidine in C57BL mice that were subjected to formalin-induced pain, dexmedetomidine (30 µg/kg) or saline was injected intraperitoneally (ip) 30 min before formalin (20 µL of 2% formalin in 0.9% saline) injection. NK cell activity against NK-sensitive YAC-1 lymphoma cells was evaluated by the percentage of specific lactate dehydrogenase (LDH) release. Various numbers of effector cells (NK cells) were added to the wells of a microtiter plate containing 2 × 10(4) target YAC-1 cells in 100 μL, to achieve final effector-to-target cell ratios of 80:1, 40:1, and 20:1. The level of lymphocyte proliferation in response to phytohemagglutinin (PHA) was detected by bromodeoxyuridine (BrdU) incorporation assay. TNF-α, IL-1β, and IL-10 levels were determined in blood samples and supernatants of splenocyte preparations. RESULTS IP administration of dexmedetomidine significantly decreased the time of licking and biting during the first and second phases of the formalin test (p <0.001). Formalin-induced pain led to higher activity of NK cells than in sham-treated mice (p <0.05), but NK activity was not increased significantly by ip dexmedetomidine treatment. Formalin-induced pain significantly increased splenic lymphocyte proliferation (p <0.05), but dexmedetomidine did not alter this response. There was a significant increase in plasma TNF-α (p = 0.048) and IL-6 (p = 0.014) levels after formalin-induced pain. However, the differences between the responses after ip dexmedetomidine did not change significantly. CONCLUSIONS Dexmedetomidine showed antinociceptive effect on both of acute pain phase 1 and hyperalgesic phase 2 of formalin pain model. Formalin-induced pain alters cellular immunity of spleen in mice. Dexmedetomidine attenuates the activation of NK cells under pain condition, but neither the proliferative response of the splenic lymphocytes nor the cytokine production was affected by dexmedetomidine.
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Affiliation(s)
- Yeon Jang
- 1. Department of Anesthesiology and pain medicine, The Catholic University of Korea, Inchon St. Mary's Hospital, 56 Dongsu-ro, Bupyong-gu, Incheon, S.Korea 403-720
| | - Mi-Young Yeom
- 2. Clinical Research Laboratory, The Catholic University of Korea, Inchon St. Mary's Hospital, 56 Dongsu-ro, Bupyong-gu, Incheon, S.Korea 403-720
| | - Eun-Sun Kang
- 2. Clinical Research Laboratory, The Catholic University of Korea, Inchon St. Mary's Hospital, 56 Dongsu-ro, Bupyong-gu, Incheon, S.Korea 403-720
| | - Ji-Won Kang
- 1. Department of Anesthesiology and pain medicine, The Catholic University of Korea, Inchon St. Mary's Hospital, 56 Dongsu-ro, Bupyong-gu, Incheon, S.Korea 403-720
| | - Ho-Kyung Song
- 1. Department of Anesthesiology and pain medicine, The Catholic University of Korea, Inchon St. Mary's Hospital, 56 Dongsu-ro, Bupyong-gu, Incheon, S.Korea 403-720
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Benaroya-Milshtein N, Hollander N, Apter A, Yaniv I, Pick CG. Stress conditioning in mice: alterations in immunity and tumor growth. Stress 2011; 14:301-11. [PMID: 21294662 DOI: 10.3109/10253890.2010.545845] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The neuroendocrine and autonomic nervous systems are known regulators of brain-immune interaction. However, the functional significance of this interaction under stress is not fully understood. We investigated the effect of a stress paradigm by applying electric foot shock followed by three reminders, on behavior, immune parameters, and lymphoma tumor growth. Male C3H mice were divided into two groups: Group 1-exposed to electric foot shock followed by three reminders, and Group 2-untreated (controls). Sets of mice underwent the elevated plus maze, staircase, and hot plate tests. After foot shock, natural killer (NK) cell activity, and lymphocyte proliferation were measured. In addition, sets of mice were either vaccinated twice with B-cell lymphoma 38C-13 immunoglobulin for determination of anti-idiotype (Id) antibodies in sera, or inoculated with tumor cells and monitored for tumor development and survival time. Mice exposed to electric foot shock followed by the three reminders had higher NK cell activity, levels of anti-Id antibodies, and a higher proliferation rate of splenocytes in response to mitogens, than the control mice. The exposed mice also showed attenuated tumor growth. Thus, the stress paradigm inhibited tumor development and lead to some immune changes that were not accompanied by behavioral changes.
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Affiliation(s)
- Noa Benaroya-Milshtein
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Current World Literature. Curr Opin Anaesthesiol 2008; 21:684-93. [DOI: 10.1097/aco.0b013e328312c01b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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