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Pan PT, Lin HY, Chuang CW, Wang PK, Wan HC, Lee MC, Kao MC. Resveratrol alleviates nuclear factor-κB-mediated neuroinflammation in vasculitic peripheral neuropathy induced by ischaemia-reperfusion via suppressing endoplasmic reticulum stress. Clin Exp Pharmacol Physiol 2019; 46:770-779. [PMID: 31090224 DOI: 10.1111/1440-1681.13105] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/28/2019] [Accepted: 05/09/2019] [Indexed: 12/29/2022]
Abstract
Vasculitic peripheral neuropathy (VPN) arises from an inflammatory obstruction in the blood vessels supplying peripheral nerves and subsequent ischaemic insults, which exhibits the clinical features of neuropathic pain and impaired peripheral nerve function. VPN induced by ischaemia-reperfusion (IR) has been reported to involve nuclear factor-κB (NF-κB)-mediated neuroinflammation. Recent studies have suggested that endoplasmic reticulum (ER) stress has been implicated in the development of peripheral neuropathies. Resveratrol possesses a potent anti-inflammatory capacity. We hypothesized that resveratrol may exert a protective effect against VPN through modulating the interrelated ER stress and NF-κB pathways. Male Sprague-Dawley rats were allocated into five groups: sham, sham + resveratrol 40 mg/kg (R40), IR, IR + R20 and IR + R40. VPN was induced by occluding the right femoral artery for 4 hours followed by reperfusion. Our data have shown that VPN induced by IR led to hind paw mechanical allodynia, heat hyperalgaesia, and impaired motor nerve conduction velocity (MNCV). With resveratrol intervention, the behavioural parameters were improved in a dose-dependent manner and the MNCV levels were increased as well. The molecular data revealed that VPN induced by IR significantly increased the expression of NF-κB as well as the ER stress sensor proteins, protein kinase RNA-like endoplasmic reticulum kinase, inositol-requiring enzyme 1 and activating transcription factor 6 in the sciatic nerves. More importantly, resveratrol significantly attenuated the expression of NF-κB and the ER stress sensor proteins after IR. In conclusion, resveratrol alleviates VPN induced by IR. The mechanisms may involve modulating NF-κB-mediated neuroinflammation via suppressing ER stress.
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Affiliation(s)
- Po-Ting Pan
- Department of Anesthesiology, Buddhist Tzu Chi Medical Foundation, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
| | - Han-Yu Lin
- Department of Anesthesiology, Buddhist Tzu Chi Medical Foundation, Taipei Tzu Chi Hospital, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Ching-Wei Chuang
- Department of Anesthesiology, Buddhist Tzu Chi Medical Foundation, Taipei Tzu Chi Hospital, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Po-Kai Wang
- School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Hung-Chieh Wan
- Department of Anesthesiology, Buddhist Tzu Chi Medical Foundation, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
| | - Ming-Cheng Lee
- Department of Research, Buddhist Tzu Chi Medical Foundation, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
| | - Ming-Chang Kao
- Department of Anesthesiology, Buddhist Tzu Chi Medical Foundation, Taipei Tzu Chi Hospital, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
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Chung CY, Chang YW, Huang CJ, Wang PK, Wan HC, Lin YY, Kao MC. Vasculitic peripheral neuropathy induced by ischemia-reperfusion in the rat femoral artery involves activation of proinflammatory signaling pathway in the sciatic nerve. Neurosci Lett 2017; 656:77-82. [PMID: 28732764 DOI: 10.1016/j.neulet.2017.07.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/27/2017] [Accepted: 07/17/2017] [Indexed: 11/26/2022]
Abstract
Ischemia-reperfusion (IR) in the rat femoral artery has been proposed as an experimental model of vasculitic peripheral neuropathy (VPN) which presents neuropathic pain and peripheral nerve injury patterns observed clinically. This study investigates the involvement of the proinflammatory signaling pathway underlying the peripheral mechanisms of VPN. Male Sprague-Dawley rats were allocated to receive either a sham operation or IR. IR was induced by occluding the right femoral artery for 4h followed by reperfusion periods from 0 to 72h. The behavioral parameters were assessed at baseline as well as at days 1, 2 and 3 after reperfusion. The time-course analyses of proinflammatory mediators in the sciatic nerves were also performed on rats of the sham group or IR groups with reperfusion periods of 0, 2, 4, 24 and 72h, respectively. The behavioral data confirmed that this VPN model induced hindpaw mechano-allodynia and heat hyperalgesia as well as impaired hindpaw grip strength. The molecular data revealed that IR in the femoral artery activated the expression of nuclear factor-κB (NF-κB) in the sciatic nerve indicating a neuroinflammatory response. Moreover, IR in the femoral artery increased the expression of proinflammatory cytokines TNF-α and IL-1β in the sciatic nerve. This study elucidated the novel time-course expression profiles of NF-κB and proinflammatory cytokines in VPN induced by IR which may be involved in the development of neuropathic pain. Since NF-κB is a key element during neuroinflammation, strategies targeting the NF-κB signaling pathway may provide therapeutic potential against VPN induced by IR.
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Affiliation(s)
- Chih-Yang Chung
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan, ROC; School of Medicine, Tzu Chi University, Hualien, Taiwan, ROC
| | - Yi-Wei Chang
- School of Medicine, Tzu Chi University, Hualien, Taiwan, ROC; Department of Rehabilitation Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan, ROC
| | - Chun-Jen Huang
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan, ROC; School of Medicine, Tzu Chi University, Hualien, Taiwan, ROC
| | - Po-Kai Wang
- School of Medicine, Tzu Chi University, Hualien, Taiwan, ROC
| | - Hung-Chieh Wan
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan, ROC
| | - Yi-Ying Lin
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan, ROC
| | - Ming-Chang Kao
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan, ROC; School of Medicine, Tzu Chi University, Hualien, Taiwan, ROC.
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Tsung YC, Chung CY, Wan HC, Chang YY, Shih PC, Hsu HS, Kao MC, Huang CJ. Dimethyl Sulfoxide Attenuates Acute Lung Injury Induced by Hemorrhagic Shock/Resuscitation in Rats. Inflammation 2017; 40:555-565. [PMID: 28028757 DOI: 10.1007/s10753-016-0502-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Inflammation following hemorrhagic shock/resuscitation (HS/RES) induces acute lung injury (ALI). Dimethyl sulfoxide (DMSO) possesses anti-inflammatory and antioxidative capacities. We sought to clarify whether DMSO could attenuate ALI induced by HS/RES. Male Sprague-Dawley rats were allocated to receive either a sham operation, sham plus DMSO, HS/RES, or HS/RES plus DMSO, and these were denoted as the Sham, Sham + DMSO, HS/RES, or HS/RES + DMSO group, respectively (n = 12 in each group). HS/RES was achieved by drawing blood to lower mean arterial pressure (40-45 mmHg for 60 min) followed by reinfusion with shed blood/saline mixtures. All rats received an intravenous injection of normal saline or DMSO immediately before resuscitation or at matching points relative to the sham groups. Arterial blood gas and histological assays (including histopathology, neutrophil infiltration, and lung water content) confirmed that HS/RES induced ALI. Significant increases in pulmonary expression of tumor necrosis factor-α (TNF-α), malondialdehyde, nuclear factor-kappa B (NF-κB), inducible nitric oxide synthase (iNOS), and cyclooxygenase 2 (COX-2) confirmed that HS/RES induced pulmonary inflammation and oxidative stress. DMSO significantly attenuated the pulmonary inflammation and ALI induced by HS/RES. The mechanisms for this may involve reducing inflammation and oxidative stress through inhibition of pulmonary NF-κB, TNF-α, iNOS, and COX-2 expression.
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Affiliation(s)
- Yu-Chi Tsung
- Division of Surgical Intensive Care Unit, Department of Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,Institute of Emergency and Critical Care Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chih-Yang Chung
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 289, Jianguo Rd., Sindian District, New Taipei City, 231, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Hung-Chieh Wan
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 289, Jianguo Rd., Sindian District, New Taipei City, 231, Taiwan
| | - Ya-Ying Chang
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 289, Jianguo Rd., Sindian District, New Taipei City, 231, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Ping-Cheng Shih
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 289, Jianguo Rd., Sindian District, New Taipei City, 231, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Han-Shui Hsu
- Institute of Emergency and Critical Care Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ming-Chang Kao
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 289, Jianguo Rd., Sindian District, New Taipei City, 231, Taiwan. .,School of Medicine, Tzu Chi University, Hualien, Taiwan.
| | - Chun-Jen Huang
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 289, Jianguo Rd., Sindian District, New Taipei City, 231, Taiwan. .,School of Medicine, Tzu Chi University, Hualien, Taiwan.
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Abstract
Aqueous extracts of ripe areca nut without husk (ripe ANE) and fresh and tender areca nut with husk (tender ANE) were examined for their effects on the defensive functions of human neutrophils. Exposure of peripheral blood neutrophils to ripe ANE and tender ANE inhibited their bactericidal activity against oral pathogens, including Actinobacillus actinomycetemcomitans and Streptococcus mutans, in a dose-dependent manner. At the concentrations tested, ripe and tender ANEs did not significantly affect the viability of neutrophils as verified by their ability to exclude trypan blue dye. However, both ANEs inhibited the production of bactericidal superoxide anion by neutrophils as measured by cytochrome c reduction. Moreover, the ripe ANE inhibited neutrophils more effectively than did tender ANE. Arecoline, a major alkaloid of areca nut, only exhibited an inhibitory effect on the functions of neutrophils when high concentrations were used. Therefore, arecoline could not be used to explain the inhibitory effects observed for ANEs. In conclusion, our results demonstrated that ripe and tender ANEs reduced the antibacterial activity and the superoxide anion production of neutrophils. This effect may contribute to a less efficient elimination of bacteria from the periodontal environment. Inhibition of the antimicrobial functions of neutrophils may alter the microbial ecology of the oral cavity, and this may be one possible mechanism by which areca nut compromises the oral health of users of areca nut products.
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Affiliation(s)
- S L Hung
- Institute of Oral Biology, National Yang-Ming University, Taipei, Taiwan, Republic of China
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Lo EC, Holmgren CJ, Hu DY, Wan HC. Dental caries status and treatment needs of 12-13-year-old children in Sichuan Province, southwestern China. Community Dent Health 1999; 16:114-6. [PMID: 10641067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
OBJECTIVE To update information on the dental caries status of children living in the Southwestern part of China for planning appropriate dental care services and to obtain information on caries level in rural areas. METHOD All first year students studying in seven secondary schools (two in urban, two in peri-urban and three in rural areas) in Sichuan Province were surveyed. The students were clinically examined in their schools using procedures and diagnostic criteria recommended by the World Health Organization. RESULTS A total of 1,542 children, 12-13 years of age, were examined of which 660, 519 and 363 were from the urban, peri-urban and rural schools respectively. The prevalence of caries experience was highest in urban children (30%), followed by peri-urban children (21%) and lowest in rural children (13%). The respective DMFT index scores for the urban, peri-urban and rural children were 0.62, 0.38 and 0.18. The differences were statistically significant (P < 0.001). The major component of the DMFT index was untreated decay (DT) in all three areas. CONCLUSION There was a clear trend of increasing prevalence and severity of dental caries in children as the survey sites moved from rural, through peri-urban to urban areas. Thus, estimates of dental caries in Chinese child populations of this age based on surveys conducted in urban areas will probably lead to gross over-estimation as over 80% of the people live in rural areas.
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Affiliation(s)
- E C Lo
- Faculty of Dentistry, University of Hong Kong, China
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Weller PF, Lim K, Wan HC, Dvorak AM, Wong DT, Cruikshank WW, Kornfeld H, Center DM. Role of the eosinophil in allergic reactions. Eur Respir J Suppl 1996; 22:109s-115s. [PMID: 8871054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The eosinophil may have several functions in health and in the pathogenesis of allergic and other diseases. Some roles of the eosinophil are based on the acute, effector responses of this cell, its capacity to generate biologically active lipid mediators and release its granule contents, including its distinctive cationic proteins. Whilst the effector responses of eosinophils are important for their contribution to the acute pathogenesis of allergic diseases, a fuller understanding of the eosinophil requires evaluation of the role this cell may play at tissue sites, especially submucosal sites, where the cell is normally localized in the absence of disease. Moreover, for the long-lived, tissue-resident eosinophil, definition of the interactions that occur between the eosinophil and other immune cells is germane to understanding the functions of eosinophils both in acute and chronic diseases. Many allergic diseases are characterized by heightened accumulation of eosinophils and are chronic ongoing diseases.
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Affiliation(s)
- P F Weller
- Dept of Medicine, Beth Israel Hospital, Harvard Medical School, Boston, MA 02215, USA
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Lim KG, Wan HC, Bozza PT, Resnick MB, Wong DT, Cruikshank WW, Kornfeld H, Center DM, Weller PF. Human eosinophils elaborate the lymphocyte chemoattractants. IL-16 (lymphocyte chemoattractant factor) and RANTES. J Immunol 1996; 156:2566-70. [PMID: 8786320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Eosinophils and CD4+ lymphocytes are preferentially recruited into sites of allergic inflammation. A role for eosinophils in the recruitment of CD4+ lymphocytes has not been defined. We studied the capacity of human eosinophils to release chemoattractants for T lymphocytes. Supernatants of cultured eosinophils contained chemoattractant activity for lymphocytes, which was predominantly due to IL-16 (lymphocyte chemoattractant factor) and RANTES. With neutralizing Abs, eosinophil-derived lymphocyte chemotactic activity was diminished by a mean (+/- SEM) of 60 +/- 3% with polygonal anti-IL-16 Ab, 69 +/- 4% with anti-IL-16 mAb, 48 +/- 3% with anti-CD4 F(ab) (IL-16 receptor blockade), 40 +/- 4% with anti-RANTES mAb, and 88 +/- 5% with a combination of anti-IL-16 and anti-RANTES mAbs. IL-16 and RANTES were detectable in eosinophil-derived supernatants by ELISA. Eosinophils constitutively expressed mRNA transcripts for both IL-16 and RANTES detectable by reverse transcription-PCR and contained preformed IL-16 and RANTES demonstrable by ELISA of cell lysates and by immunocytochemistry of freshly isolated eosinophils. Thus, eosinophils are a source of two cytokines, IL-16 and RANTES, that are chemoattractants for lymphocytes as well as eosinophils. These data indicate that eosinophils could contribute cytokines to enhance the recruitment of additional populations of CD4+ lymphocytes and eosinophils.
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Affiliation(s)
- K G Lim
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
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8
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Lim KG, Wan HC, Bozza PT, Resnick MB, Wong DT, Cruikshank WW, Kornfeld H, Center DM, Weller PF. Human eosinophils elaborate the lymphocyte chemoattractants. IL-16 (lymphocyte chemoattractant factor) and RANTES. The Journal of Immunology 1996. [DOI: 10.4049/jimmunol.156.7.2566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Abstract
Eosinophils and CD4+ lymphocytes are preferentially recruited into sites of allergic inflammation. A role for eosinophils in the recruitment of CD4+ lymphocytes has not been defined. We studied the capacity of human eosinophils to release chemoattractants for T lymphocytes. Supernatants of cultured eosinophils contained chemoattractant activity for lymphocytes, which was predominantly due to IL-16 (lymphocyte chemoattractant factor) and RANTES. With neutralizing Abs, eosinophil-derived lymphocyte chemotactic activity was diminished by a mean (+/- SEM) of 60 +/- 3% with polygonal anti-IL-16 Ab, 69 +/- 4% with anti-IL-16 mAb, 48 +/- 3% with anti-CD4 F(ab) (IL-16 receptor blockade), 40 +/- 4% with anti-RANTES mAb, and 88 +/- 5% with a combination of anti-IL-16 and anti-RANTES mAbs. IL-16 and RANTES were detectable in eosinophil-derived supernatants by ELISA. Eosinophils constitutively expressed mRNA transcripts for both IL-16 and RANTES detectable by reverse transcription-PCR and contained preformed IL-16 and RANTES demonstrable by ELISA of cell lysates and by immunocytochemistry of freshly isolated eosinophils. Thus, eosinophils are a source of two cytokines, IL-16 and RANTES, that are chemoattractants for lymphocytes as well as eosinophils. These data indicate that eosinophils could contribute cytokines to enhance the recruitment of additional populations of CD4+ lymphocytes and eosinophils.
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Affiliation(s)
- K G Lim
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - H C Wan
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - P T Bozza
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - M B Resnick
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - D T Wong
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - W W Cruikshank
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - H Kornfeld
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - D M Center
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - P F Weller
- Department of Medicine, Beth Isreal Hospital, Harvard Medical School, Boston, MA 02215, USA
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Wan HC, Lazarovits AI, Cruikshank WW, Kornfeld H, Center DM, Weller PF. Expression of alpha 4 beta 7 integrin on eosinophils and modulation of alpha 4-integrin-mediated eosinophil adhesion via CD4. Int Arch Allergy Immunol 1995; 107:343-4. [PMID: 7613166 DOI: 10.1159/000237024] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- H C Wan
- Department of Medicine, Beth Israel Hospital, Harvard Medical School, Boston, MA 02215, USA
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Lim KG, Wan HC, Resnick M, Wong DT, Cruikshank WW, Kornfeld H, Center DM, Weller PF. Human eosinophils release the lymphocyte and eosinophil active cytokines, RANTES and lymphocyte chemoattractant factor. Int Arch Allergy Immunol 1995; 107:342. [PMID: 7542086 DOI: 10.1159/000237023] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- K G Lim
- Department of Medicine, Beth Israel Hospital, Harvard Medical School, Boston, MA 02215, USA
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