1
|
Kang TY, Kim S, Cho SK, Kim T, Hwang YH, Kim K. Quantitative comparison of EGFR expression levels of optically trapped individual cells using a capacitance biosensor. Biosens Bioelectron 2023; 233:115320. [PMID: 37105057 DOI: 10.1016/j.bios.2023.115320] [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: 12/12/2022] [Revised: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023]
Abstract
Cellular endocytosis is an essential phenomenon which induces cellular reactions, such as waste removal, nutrient absorption, and drug delivery, in the process of cell growth, division, and proliferation. To observe capacitance responses upon endocytosis on a single-cell scale, this study combined an optical tweezer that can optically place a single cell on a desired location with a capacitance sensor and a cell incubation chamber. Single HeLa cancer cell was captured and moved to a desired location through optical trapping, and the single-cell capacitance change generated during the epidermal growth factor (EGF) molecule endocytosis was measured in real time. It was found that single HeLa cells showed a larger increase in capacitance values compared to that of the single NIH3T3 cells when exposed to varying EGF concentrations. In addition, the capacitance change was in proportion to the cell's EGF receptor (EGFR) level when cells of different levels of EGFR expression were tested. An equation derived from these results was able to estimate the EGFR expression level of a blind-tested cell. The biosensor developed in this research can not only quickly move a single cell to a desired location in a non-invasive manner but also distinguish specific responses between cancer and normal cells by continuous measurement of real-time interactions of a single cell in culture to the external ligands.
Collapse
Affiliation(s)
- Tae Young Kang
- Department of Cogno-Mechatronics Engineering, Pusan National University (PNU), Busan, 46241, Republic of Korea
| | - Soojung Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University (PNU), Busan, 46241, Republic of Korea
| | - Soo Kyung Cho
- Crystal Bank, Pusan National University (PNU), Miryang, 50463, Republic of Korea
| | - Taeyeon Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University (PNU), Busan, 46241, Republic of Korea
| | - Yoon-Hwae Hwang
- Department of Nano Energy Engineering, Pusan National University (PNU), Busan, 46241, Republic of Korea.
| | - Kyujung Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University (PNU), Busan, 46241, Republic of Korea; Department of Optics and Mechatronics Engineering, Pusan National University (PNU), Busan, 46241, Republic of Korea.
| |
Collapse
|
2
|
Viveros-Paredes JM, Puebla-Pérez AM, Gutiérrez-Coronado O, Macías-Lamas AM, Hernández-Flores G, Ortiz-Lazareno PC, Bravo-Cuéllar A, Villaseñor-García MM. Capsaicin attenuates immunosuppression induced by chronic stress in BALB/C mice. Int Immunopharmacol 2021; 93:107341. [PMID: 33486334 DOI: 10.1016/j.intimp.2020.107341] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 11/30/2022]
Abstract
Although acute stress generally exerts positive effects on the immune system, chronic stress typically causes immunosuppression via the hypothalamic-pituitary-adrenal (HPA) axis. In this study, the effects of capsaicin (1.28 mg/kg intraperitoneally [i.p.] for 7 days) on immune parameters were evaluated under conditions of chronic stress. Capsaicin treatment significantly increased the immune response as evaluated by the delayed-type hypersensitivity (DTH) reaction to dinitrofluorobenzene (DNFB) and splenocyte proliferation assays- It also is able to rescue the splenocytes of the apoptosis induced by stress. The capsaicin treatment increased the production of Th1 cytokines and decreased the production of Th2 cytokines and TGF-β1 in the plasma and culture supernatants of immunosuppressed mice, which is associated with the modulation of Th2 induced by stress cells. Moreover, the production of corticosterone significantly decreased in capsaicin-treated animals as compared to control groups. The capsaicin treatment further attenuated the immunosuppression induced by the corticosterone treatment (40 mg/kg i.p. for 7 days), albeit less potently, as exhibited in the DTH response. Intriguingly, the capsaicin treatment decreased the induction of IL-10, IL-4, and TGF-β1 through high doses of corticosterone, indicating direct cellular immunomodulation. These results show, that capsaicin is able to modulate chronic stress-induced immunosuppression, mediating corticosterone released inhibition, but also, that capsaicin significantly modulates the pharmacological action of corticosterone in vivo.
Collapse
Affiliation(s)
- J M Viveros-Paredes
- Departamento de Farmacobiología, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - A M Puebla-Pérez
- Departamento de Farmacobiología, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - O Gutiérrez-Coronado
- Departamento de Ciencias de la Tierra y de la Vida, Centro Universitario de los Lagos, Universidad de Guadalajara. Lagos de Moreno, Jalisco, Mexico
| | - A M Macías-Lamas
- Departamento de Farmacobiología, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - G Hernández-Flores
- División de Inmunología, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (IMSS). Guadalajara, Jalisco, Mexico
| | - P C Ortiz-Lazareno
- División de Inmunología, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (IMSS). Guadalajara, Jalisco, Mexico
| | - A Bravo-Cuéllar
- División de Inmunología, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (IMSS). Guadalajara, Jalisco, Mexico; Dpto de Ciencias de Salud, CUALTOS, Universidad de Guadalajara, Tepatitlán de Morelos, Jalisco, Mexico
| | - M M Villaseñor-García
- Departamento de Farmacobiología, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico; División de Inmunología, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (IMSS). Guadalajara, Jalisco, Mexico.
| |
Collapse
|
3
|
Pezzetti F, Carinci F, Palmieri A, Vizzotto L, Moscheni C, Vertemati M, Calastrini C, Pellati A, Stabellini G. Diphenylhydantoin plays a role in gene expression related to cytoskeleton and protein adhesion in human normal palate fibroblasts. Pathology 2009; 41:261-8. [PMID: 19291538 DOI: 10.1080/00313020902756899] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
AIMS Morphogenetic processes during palate development are related to extracellular matrix composition. The cell-extracellular matrix relation plays a role in cell activity and in gene expression. We studied the effect of diphenylhydantoin, a teratogen known to induce cleft palate in human newborns, on extracellular matrix production. We investigated whether diphenylhydantoin treatment caused any differences in glycosaminoglycans, collagen synthesis and gene expression in human normal palate fibroblasts. METHODS Human palate fibroblasts were maintained for 24 hours in serum-free 199 medium containing 5 microg/mL (3)H-glucosamine or (3)H proline hydrochloride. Collagen and glycosaminoglycan classes were then measured using biochemical methods, gene expression with microarray analysis and cytoskeleton components with immunofluorescent antibodies and computer analysis. RESULTS In normal fibroblasts diphenylhydantoin reduced collagen and glycosaminoglycan synthesis with a marked effect on sulphated glycosaminoglycans. There were also substantial decreases in tubulin, vimentin and alpha-actin staining and an increase of vinculin compared to controls. Diphenylhydantoin acted on several genes related to the synthesis of cytoskeleton and adhesion membrane proteins. It inhibited caderin, caveolin, RTK and alpha-actin, and increased nectin, cytoplasmatic FRG vinculin, ITGA, ITGB extracellular matrix ligand and EDG2 gene expression. DNA binding gene expression, which plays a role in cell growth and senescence, was activated. CONCLUSIONS Since cell activity is dependent on the cell morphology and extracellular matrix composition, these findings indicate that in human normal palate fibroblasts diphenylhydantoin can modify cytoskeletal components and extracellular matrix-cell adhesion, with consequent effects on gene expression. These changes might be related to anomalous palate development.
Collapse
Affiliation(s)
- Furio Pezzetti
- Histology, Embryology and Applied Biology Department, University of Bologna, Bologna, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Puebla P, Pastoriza P, Barcia E, Fernández-Carballido A. PEG-derivative effectively modifies the characteristics of indomethacin-PLGA microspheres destined to intra-articular administration. J Microencapsul 2008; 22:793-808. [PMID: 16421089 DOI: 10.1080/02652040500273902] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of this study was to obtain biodegradable indomethacin microspheres for intra-articular administration in rheumatoid arthritis, where angiogenic processes are involved. Indomethacin concentrations to achieve an anti-angiogenic effect would be five-times higher than an anti-inflammatory. Microspheres were prepared by solvent evaporation using PLGA. Indomethacin is a poor water-soluble drug with it being possible that dissolved and non-dissolved drug co-exist within the polymeric matrix resulting in rapid release. To control this release, an oil-PEG-derivative was incorporated, producing changes in morphology, crystallinity and indomethacin release. To minimize the amount of microspheres administered, a two-factor five-level central rotable composite 2(2)+star design was employed with two independent variables: indomethacin percentage and PEG-derivative percentage. The optimum formulation showed mean encapsulation efficiency of 94.3+/-2.2% and released 7.99+/-0.25 microg indomethacin/day/mg microspheres for 21 days. A dose of 20-50 mg of this formulation could be appropriate to achieve both anti-angiogenic and anti-inflammatory effects. Preliminary cytotoxicity studies performed in rat splenocytes showed an adequate cell viability.
Collapse
Affiliation(s)
- Patricia Puebla
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad Complutense, Madrid, Spain
| | | | | | | |
Collapse
|
5
|
Hidaka N, Suemaru K, Li B, Araki H. Effects of Repeated Electroconvulsive Seizures on Spontaneous Alternation Behavior and Locomotor Activity in Rats. Biol Pharm Bull 2008; 31:1928-32. [DOI: 10.1248/bpb.31.1928] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Katsuya Suemaru
- Division of Pharmacy, Ehime University Hospital
- Department of Clinical Pharmacology and Pharmacy, Neuroscience, Ehime University Graduate School of Medicine
| | - Bingjin Li
- Department of Clinical Pharmacology and Pharmacy, Neuroscience, Ehime University Graduate School of Medicine
| | - Hiroaki Araki
- Division of Pharmacy, Ehime University Hospital
- Department of Clinical Pharmacology and Pharmacy, Neuroscience, Ehime University Graduate School of Medicine
| |
Collapse
|
6
|
Viveros-Paredes JM, Puebla-Pérez AM, Gutiérrez-Coronado O, Sandoval-Ramírez L, Villaseñor-García MM. Dysregulation of the Th1/Th2 cytokine profile is associated with immunosuppression induced by hypothalamic-pituitary-adrenal axis activation in mice. Int Immunopharmacol 2005; 6:774-81. [PMID: 16546708 DOI: 10.1016/j.intimp.2005.11.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2005] [Revised: 08/30/2005] [Accepted: 11/15/2005] [Indexed: 12/21/2022]
Abstract
Hypothalamic-pituitary-adrenal (HPA) axis activation-induced immunosuppression is associated with increased concentration of circulating corticosterone and impaired cellular immune responses. The purpose of this study was to investigate the effect of chronic HPA axis activation on the cellular immune response, Th1/Th2 cytokine profile, and concentration of corticosterone. Mice were divided into two groups: a control group comprised of healthy, untreated mice that received no stress, and an HPA axis-activated group that received stress through electric shock (ES). The delayed-type hypersensitivity reaction to dinitrofluorobenzene, splenocyte proliferative response to mitogens Concanavalin A and lipopolysaccharide, Th1 and Th2 profile, and TGF-beta1 production were measured in plasma and in culture supernatants. The corticosterone concentration was also measured in plasma. In the ES group, elevated plasma corticosterone concentration was associated with immunosuppression and a significant decrease in plasma concentrations of IL-2, IL-4, and TGF-beta1. In vitro IL-2 production in response to Con A was significantly lower in the ES group than in the control group. TGF-beta1 production in nonstimulated and stimulated cultures in response to either mitogen was significantly lower in the ES group than in the control group. Plasma concentrations of IFN-gamma and IL-10 did not differ significantly between groups. The concentrations of IFN-gamma, IL-4, and IL-10 in the supernatants of splenocytes stimulated with either mitogen and IL-4 production by nonstimulated cells were significantly higher in the ES group than in the control group. These results suggest that corticosterone mediates the immunosuppression induced by HPA axis activation, and induces dysregulation of the Th1/Th2 cytokine profile.
Collapse
Affiliation(s)
- Juan Manuel Viveros-Paredes
- Laboratorio de Inmunofarmacología de Productos Naturales, División de Medicina Molecular, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Mexico
| | | | | | | | | |
Collapse
|
7
|
Quadrilatero J, Hoffman-Goetz L. Mouse thymocyte apoptosis and cell loss in response to exercise and antioxidant administration. Brain Behav Immun 2005; 19:436-44. [PMID: 16061151 DOI: 10.1016/j.bbi.2004.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2004] [Revised: 12/07/2004] [Accepted: 12/15/2004] [Indexed: 10/25/2022] Open
Abstract
Various physical and psychological stressors can cause thymocyte apoptosis and cell loss in rodents. Although glucocorticoids (GC) are commonly implicated, oxidative stress may also play a role. The purpose of this study was to examine the effect of an acute bout of strenuous treadmill running, and the antioxidant N-acetyl-L-cysteine (NAC) on thymocyte loss and apoptosis. Eighty-eight female C57BL/6 mice were given NAC (1 g/kg, i.p.) or saline (SAL) 30 min before 90 min of treadmill exercise at a 2 degrees slope (EX; 30 min at 22 m/min; 30 min at 25 m/min; and 30 min at 28 m/min) and sacrificed immediately (Imm) or 24 h following EX. Control mice (NonEX) were exposed to treadmill noise and vibration without running. Thymocytes were isolated and analyzed for phosphatidylserine (PS) externalization (Annexin V), loss of membrane integrity, mitochondria membrane depolarization, intracellular hydrogen peroxide (H(2)O(2)) production, and intracellular glutathione (GSH) as well as protein levels of caspase 3, Bcl-2, and cytosolic cytochrome c. Blood was analyzed for corticosterone (CORT) concentrations by radioimmunoassay. Exercise stress caused a significant increase in plasma CORT concentrations in EX + SAL + Imm and EX + NAC + Imm groups compared to NonEX mice. Relative to NonEX mice, thymocytes isolated from EX + SAL + Imm mice showed signs of an early apoptotic profile as indicated by decreased GSH stores and increased mitochondrial membrane depolarization. These effects were followed by a 50% reduction in thymocyte numbers 24 h post-exercise (EX + SAL + 24 h). Alterations in GSH levels, mitochondrial membrane depolarization, and thymocyte loss were not observed in mice receiving NAC. These results suggest that exercise-induced thymocyte apoptosis and cell loss may be mediated via an oxidative stress pathway.
Collapse
Affiliation(s)
- Joe Quadrilatero
- Department of Health Studies and Gerontology, Faculty of Applied Health Sciences, University of Waterloo, Ont., Canada
| | | |
Collapse
|
8
|
Villaseñor-García MM, Lozoya X, Osuna-Torres L, Viveros-Paredes JM, Sandoval-Ramírez L, Puebla-Pérez AM. Effect of Ginkgo biloba extract EGb 761 on the nonspecific and humoral immune responses in a hypothalamic-pituitary-adrenal axis activation model. Int Immunopharmacol 2005; 4:1217-22. [PMID: 15251117 DOI: 10.1016/j.intimp.2004.05.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2003] [Revised: 01/04/2004] [Accepted: 05/17/2004] [Indexed: 10/26/2022]
Abstract
We evaluated the immune response of healthy control and stressed Wistar rats submitted to hypothalamic-pituitary-adrenal (HPA) axis activation. Rats were treated with Ginkgo biloba extract (EGb 761) orally (100 mg/kg per day for 7 days). EGb 761 stimulated the digestion index of peritoneal and alveolar macrophages (PM and AM) of stressed rats. Likewise, the cellular immune response measured using the delayed-type hypersensitivity response to sheep red blood cells (SRBC) and the humoral immune response (measured through an anti-SRBC response), were also restored in stressed rats. Thus, this G. biloba extract possesses immunostimulatory activity in addition to its broad spectrum of pharmacological effects.
Collapse
Affiliation(s)
- María Martha Villaseñor-García
- Laboratorio de Inmunofarmacología de Productos Naturales, División de Medicina Molecular CIBO-IMSS, Guadalajara, Jalisco, Mexico.
| | | | | | | | | | | |
Collapse
|
9
|
Hoffman-Goetz L, Quadrilatero J, Boudreau J, Guan J. Adrenalectomy in mice does not prevent loss of intestinal lymphocytes after exercise. J Appl Physiol (1985) 2005; 96:2073-81. [PMID: 15133013 DOI: 10.1152/japplphysiol.01262.2003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Exhaustive exercise is associated with an increase in circulating glucocorticoids (GCs), lymphocyte apoptosis, and a reduction in intestinal lymphocyte number. The present study examined the role of GCs on the numerical changes seen in intestinal lymphocytes after exercise. Female C57BL/6 mice were bilaterally adrenalectomized (ADX; n = 18) or given sham surgery (Sham; n = 18) and assigned to one of three exercise conditions: treadmill running (28 m/min, 90 min, 2 degrees slope) and killed immediately or after 24 h recovery, or not exercised and killed immediately after 90-min exposure to the treadmill environment. Lymphocytes were isolated from the intestines with CD45(+) cells collected by positive selection using magnetic bead separation columns, and lymphocyte subpopulations were analyzed by flow cytometry for CD45(+), CD3alphabeta(+), CD3gammadelta(+), CD8beta(+), CD8alpha(+), CD4(+), and NK(+) phenotypic markers. ADX mice had significantly more intestinal CD45(+) leukocytes (P < 0.05) and CD3alphabeta(+) (P < 0.05), CD3gammadelta(+) (P < 0.01), CD8alpha(+) (P < 0.001), and NK(+) (P < 0.05) intestinal lymphocytes than Sham mice. There was a significant effect of exercise condition on total intestinal CD45(+) leukocytes (P < 0.01) and CD3alphabeta(+) (P < 0.05), CD8alpha(+) (P < 0.001), and CD4(+) (P < 0.05) intestinal lymphocytes, with fewer cells at 24 h postexercise compared with the other treatment conditions. There were no surgical x exercise interaction effects on the CD3 and CD8 phenotype numbers. Plasma corticosterone was virtually nil in ADX mice regardless of exercise condition but was significantly elevated in Sham mice immediately postexercise (P < 0.001). The data indicate that ADX does not prevent the loss of lymphocytes from the intestinal mucosa 24 h after strenuous exercise and GCs are not directly causal in the leukopenia of exercise.
Collapse
Affiliation(s)
- L Hoffman-Goetz
- Department of Health Studies and Gerontology, Faculty of Applied Health Sciences, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | | | | | | |
Collapse
|
10
|
Villaseñor-García MM, Lozoya X, Puebla-Pérez AM. An experimental model of stress-induced immunosuppression produced by electrical stimulation of the brain in the rat. J Neuroimmunol 2001; 114:35-9. [PMID: 11240013 DOI: 10.1016/s0165-5728(00)00458-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The present paper reports a model of stress induction, based on electrical stimulation of the brain in normal Wistar rats. Stress-related stimulation of the hypothalamic-pituitary-adrenal axis produced a rise in circulating corticosterone levels that correlated significantly with the impairment of some immunological parameters, such as delayed hypersensitivity reactions to dinitrofluorobenzene and to sheep red blood cells, together with changes in splenocyte proliferation and phagocytic activity of peritoneal macrophages. This experimentally elicited stress in the rat is proposed as a suitable model of immunosuppression that could be used for the evaluation of drugs with potential immunomodulatory properties.
Collapse
Affiliation(s)
- M M Villaseñor-García
- Centro de Investigación Biomédica de Occidente, IMSS, Sierra Mojada No 800, Colonia Independencia SL, 44340 Guadalajara, Jalisco, Mexico.
| | | | | |
Collapse
|