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Ide S, Arai N, Morimitsu N, Momose H, Hayashi M, Watanabe-Asaka T, Ishida T, Tanaka S, Seto T, Kawai Y, Kawamata M, Ohhashi T. Another route of CO2 gas excretion independent of red blood cells in human lungs. Pflugers Arch 2021; 473:1657-1666. [DOI: 10.1007/s00424-021-02586-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/10/2021] [Accepted: 05/20/2021] [Indexed: 10/20/2022]
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Hayashi M, Watanabe-Asaka T, Nagashio S, Kaidoh M, Yokoyama Y, Maejima D, Kajihara R, Amari K, Arai N, Kawai Y, Ohhashi T. Water intake accelerates ATP release from myofibroblast cells in rats: ATP-mediated podoplanin-dependent control for physiological function and immunity. Am J Physiol Gastrointest Liver Physiol 2021; 320:G54-G65. [PMID: 33146549 DOI: 10.1152/ajpgi.00303.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We previously demonstrated that water intake increased mesenteric lymph flow and the total flux of IL-22 in rat jejunum. The drained water and the higher permeability of albumin in the jejunal microcirculation contributed to increase the lymph flow and IL-22 transport via the activation of great bulk flow in the jejunal villi. To address the effects of water intake-mediated great bulk flow-dependent mechanical force on jejunal physiological function and immunological regulation of innate lymphoid cells (ILC)-3, we examined the effects of shear stress stimulation on cultured rat myofibroblast cells. Next, we investigated the effects of water intake on podoplanin and IL-22 expressions in cultured human intestinal epithelial cells and rat in vivo jejunal preparations, respectively. Shear stress stimulation of the myofibroblast cells induced ATP release via an activation of cell surface F1/F0 ATP synthase. ATP produced podoplanin expression in the intestinal epithelial cells. Water intake accelerated immunohistochemical expressions of podoplanin and IL-22 in the interepithelial layers and lamina propria of the jejunum. ATP dose-dependently increased IL-22 mRNA expression in ILC-3, which are housed in the lamina propria. Water intake also increased immunohistochemical and mRNA expressions of ecto-nucleoside triphosphate diphosphohydrolases 2 and 5 in jejunal villi. In conclusion, water intake-mediated shear stress stimulation-dependent ATP release from myofibroblast cells maintains higher tissue colloid osmotic pressure in the jejunal microcirculation through podoplanin upregulation in the interepithelial layers. ATP induces IL-22 mRNA expression in ILC-3 in jejunal villi, which may contribute to regulation of mucosal immunity in small intestine.NEW & NOTEWORTHY We investigated effects of shear stress stimulation on cultured myofibroblast cells and water intake on podoplanin and IL-22 expressions in rat jejunal villi. The stimulation induced ATP release from the cells. Water intake accelerated podoplanin and IL-22 expression levels. ATP increased IL-22 mRNA expression in innate lymphoid cells (ILC)-3. Hence, water intake maintains higher osmotic pressure in the jejunal villi through ATP release and podoplanin upregulation. Water intake may regulate the mucosal immunity.
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Affiliation(s)
- Moyuru Hayashi
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Division of Physiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Tomomi Watanabe-Asaka
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Division of Physiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Sachiho Nagashio
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Maki Kaidoh
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yumiko Yokoyama
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Daisuke Maejima
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Ryo Kajihara
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kei Amari
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Nariaki Arai
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yoshiko Kawai
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Division of Physiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Toshio Ohhashi
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
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Ajima K, Kawai Y, Maejima D, Suzuki S, Yano S, Hayashi M, Katsumata A, Kaidoh M, Yokoyama Y, Ohhashi T. Lymph Drainage from the Chylocyst-Induced Hemodilution in an In Vivo Rabbit Study. Lymphat Res Biol 2017; 16:154-159. [PMID: 29072862 DOI: 10.1089/lrb.2016.0066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To confirm our previous study that abdominal respiration has induced hemodilution in human subjects, we performed in-vivo experiments involving anesthetized rabbits. Fifteen 6- to 7-month-old male Japanese white rabbits were used in the animal experiments. Anesthesia was maintained with 2.5%-3.0% isoflurane under N2O + 100% O2 inhalation. Ventilation was maintained at 40 mL/breath for 20 breaths/min. Physiological saline solution was administered at rated 18 mL/h during the experiments. First, we attempted to evaluate lymph flow through the thoracic duct using Sonazoid-based contrast-enhanced ultrasound (CEUS)-guided method and then investigated the effects of manual lymph drainage of the chylocyst on the numbers of red blood cells (RBC), hematocrit (Ht) levels, and the blood concentrations of total protein (TP) and hemoglobin (Hb). In this study, we established surgical methods for identifying the left venous angle and chylocyst using Evans blue dye in anesthetized rabbits. We also confirmed that a Sonazoid-based CEUS-guided method was the most useful technique for producing real-time images of lymph flow through the thoracic duct in anesthetized rabbits. In addition, in present experiments involving anesthetized rabbits, we confirmed that manually massaging the chylocyst produced significant hemodilution. Thus, the procedure produced significant reductions of TP, RBC, Hb, and Ht level in the rabbits.
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Affiliation(s)
- Kumiko Ajima
- 1 Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University , Matsumoto, Japan
| | - Yoshiko Kawai
- 2 Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine , Matsumoto, Japan .,3 Division of Physiology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University , Sendai, Japan
| | - Daisuke Maejima
- 2 Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine , Matsumoto, Japan .,4 BOURBON Corporation , Rashiwazaki, Japan
| | - Shigeru Suzuki
- 5 Department of Dentistry and Oral Surgery, Shinshu University School of Medicine , Matsumoto, Japan
| | - Sachiho Yano
- 2 Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine , Matsumoto, Japan .,5 Department of Dentistry and Oral Surgery, Shinshu University School of Medicine , Matsumoto, Japan
| | - Moyuru Hayashi
- 2 Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine , Matsumoto, Japan .,3 Division of Physiology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University , Sendai, Japan
| | - Atsushi Katsumata
- 2 Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine , Matsumoto, Japan .,4 BOURBON Corporation , Rashiwazaki, Japan
| | - Maki Kaidoh
- 2 Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine , Matsumoto, Japan
| | - Yumiko Yokoyama
- 2 Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine , Matsumoto, Japan
| | - Toshio Ohhashi
- 2 Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine , Matsumoto, Japan
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