1
|
Zhou Z, Li K, Shi L, Wang Y, He Y, Hu W, Guo J. Self-Assembled Integrative Nutrient Carrier Platform Containing Green Tea Catechin for Short Bowel Syndrome Treatment. Adv Healthc Mater 2023; 12:e2201933. [PMID: 36337003 DOI: 10.1002/adhm.202201933] [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: 08/02/2022] [Revised: 09/28/2022] [Indexed: 11/09/2022]
Abstract
Extensive resection of the small intestine leads to the development of short bowel syndrome (SBS), which reduces the effective absorptive surface area of the intestine and predisposes patients to emaciation, malnutrition, and other severe symptoms. Herein, green tea catechin (-)-epigallocatechin gallate (EGCG) and ferrous ions (Fe2+ ) are utilized to construct a nutrient carrier platform that self-assembles with nutrients to form phenolic-based nutrient complexes (PNCs). PNCs effectively prolong the residence and absorption time of nutrients in the intestine. Further this platform is applied to integrate full nutrient formula, an enteral nutrition (EN) preparation containing a range of full nutrient components. In an SBS rat model, the prepared phenolic-based integrative nutrient complexes (PINCs) enhance nutritional status, improve anemia and immune function, as well as facilitate the growth of remaining intestinal villi and crypts, and maintain the integrity of the intestinal barrier. In addition, PINCs enable the modulation of gut microbial dysbiosis, enrich the abundance of beneficial bacteria, and have no toxic effects after the long-term ingestion. These results provide a proof of principle for the use of polyphenol-based nanocomplexes as EN preparation, offering a feasible strategy for both nutritional support and therapeutic perspectives for SBS treatment.
Collapse
Affiliation(s)
- Zhengming Zhou
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Ke Li
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lei Shi
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yunfeng Wang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yunxiang He
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan, 610065, China
| | - Wen Hu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.,Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Junling Guo
- BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan, 610065, China.,Bioproducts Institute, Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, China
| |
Collapse
|
2
|
L-ARGININE PREVENTS ISCHEMIC INJURY IN EXPLANTED RAT INTESTINAL REGIONS IN AN EX VIVO PERFUSION MODEL. TRANSPLANTATION REPORTS 2022. [DOI: 10.1016/j.tpr.2022.100096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
3
|
Liu R, Wang SM, Guo SJ, Ma MM, Fu YL. Histone deacetylase inhibitor attenuates intestinal mucosal injury in fatally scalded rats. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:54. [PMID: 35282042 PMCID: PMC8848362 DOI: 10.21037/atm-21-5766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/30/2021] [Indexed: 11/06/2022]
Abstract
Background Severe burns, trauma and shock can cause intestinal epithelial barrier dysfunction, which can lead to intestinal endotoxemia and even sepsis and multi-organ dysfunction. Many studies have shown that histone deacetylase inhibitors (HDACIs) can improve cell tolerance to hypoxia and inflammation, thus protecting the functions of important organs in the body, and at the same time, inhibiting the degradation of tight junction (TJ) proteins, protecting the intercellular barrier, and reducing tissue edema and organ damage. However, the mechanism is unclear. Methods Eighty male Sprague-Dawley rats (weighing 280-300 g) with a 50% total body surface area full-thickness dermal burn were randomly assigned to 4 groups (20 rats/group): sham control (SC group), scald + normal saline (SN group), scald + 2-methyl-2pentenoic acid (2M2P group), and scald + valproic acid (VPA group). After scalding, we measured the following parameters at various time intervals postburn injury: intestinal mucosal injury score, diamine oxidase (DAO) activity, intestinal protein expression of acetyl histone H3 at K9 (Ac-H3K9), hypoxia inducible factor 1α (HIF-1α), erythropoietin (EPO), zonula occludens-1 (ZO-1), endothelial nitric oxide synthase (eNOS) content, nitric oxide (NO) content, and intestinal mucosal blood flow (IMBF). Results Intestinal mucosa showed significant morphologic injury at 4 and 8 hours after scalding that was attenuated by VPA. DAO activity in the VPA group was significantly decreased compared with the other scald groups. At 4 and 8 hours after scalding, VPA enhanced Ac-H3K9 and ZO-1 expression and decreased HIF-1α and EPO expression in the intestine compared with the other scald groups. At 4 and 8 hours after scalding, eNOS and NO protein content and IMBF in the VPA group were markedly increased compared with the other scald groups. Conclusions HDACIs attenuated intestinal mucosal injury in fatally scalded rats. This may have involved VPA enhancing Ac-H3K9 and ZO-1 expression, inhibiting HIF-1α and EPO expression and inducing eNOS and NO increments.
Collapse
Affiliation(s)
- Rui Liu
- Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
- Department of Burns, Heilongjiang Provincial Hospital, Harbin, China
| | - Shu-Ming Wang
- Department of Emergency Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Si-Jia Guo
- Department of Burns, Heilongjiang Provincial Hospital, Harbin, China
| | - Ming-Ming Ma
- Department of Burns, Heilongjiang Provincial Hospital, Harbin, China
| | - Yi-Li Fu
- Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| |
Collapse
|
4
|
Zhou S, Xie J, Yu C, Feng Z, Cheng K, Ma J, Wang Y, Duan C, Zhang Y, Jin B, Yin W, Zhuang R. CD226 deficiency promotes glutaminolysis and alleviates mitochondria damage in vascular endothelial cells under hemorrhagic shock. FASEB J 2021; 35:e21998. [PMID: 34669985 DOI: 10.1096/fj.202101134r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/23/2021] [Accepted: 10/04/2021] [Indexed: 12/18/2022]
Abstract
Hemorrhagic shock (HS) is common in clinical emergencies, leading to millions of deaths each year globally. CD226 is a costimulatory adhesion molecule expressed on both immune cells and endothelial cells (ECs) to regulate their metabolic activity and function. As endothelial dysfunction occurs after HS, the roles CD226 plays in vascular EC metabolism were investigated. CD226fl/fl Tekcre mice were adopted to achieve vascular EC-specific knockout of CD226, and subjected to HS modelling. Serum levels of crucial intermediate metabolites were evaluated through liquid chromatography-mass spectrometry analysis. Human umbilical vein ECs (HUVECs) were used to study the effects of CD226 under hypoxia in vitro. Seahorse analysis evaluated the cellular glycolysis and mitochondria bioenergetics. Results showed that CD226 deficiency in vascular ECs alleviated HS-induced intestinal damage and inflammatory response in mice. Animal studies indicated an improved energy metabolism when CD226 was knocked out in ECs after HS, as evidenced by enhanced glutamine-glutamate metabolism and decreased lactic acid levels. Glut-1 was upregulated in mouse vascular ECs after HS and HUVECs under hypoxia, combined with decreased CD226. Moreover, HUVECs with CD226 knockdown exhibited relieved mitochondrial damage and early apoptosis under hypoxia, whereas CD226 overexpression showed opposite effects. Seahorse analysis showed that downregulated CD226 significantly increased mitochondrial ATP production and glucose uptake in HUVECs under hypoxia. Additionally, Erk/PHD2 signaling-mediated HIF-1α/Glut-1 and HIF-2α/ASCT2 pathways were involved in CD226 regulation on HUVEC glutaminolysis after hypoxia. Hence, CD226 deficiency promotes bypass energy supply to vascular ECs under ischemic or hypoxic stress, to ameliorate the stress-mediated metabolic disturbance.
Collapse
Affiliation(s)
- Shangxun Zhou
- Department of Immunology, Fourth Military Medical University, Xi'an, China.,Department of Emergency, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jiangang Xie
- Department of Immunology, Fourth Military Medical University, Xi'an, China.,Department of Emergency, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Chaoping Yu
- Department of Immunology, Fourth Military Medical University, Xi'an, China.,Department of Emergency, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhusheng Feng
- Department of Emergency, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Kun Cheng
- Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Jingchang Ma
- Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Yuling Wang
- Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Chujun Duan
- Department of Emergency, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yuan Zhang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Boquan Jin
- Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Wen Yin
- Department of Emergency, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Ran Zhuang
- Department of Immunology, Fourth Military Medical University, Xi'an, China.,Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| |
Collapse
|
5
|
Maina RM, Barahona MJ, Geibel P, Lysyy T, Finotti M, Isaji T, Wengerter B, Mentone S, Dardik A, Geibel JP. Hydrogel-based 3D bioprints repair rat small intestine injuries and integrate into native intestinal tissue. J Tissue Eng Regen Med 2020; 15:129-138. [PMID: 33197151 DOI: 10.1002/term.3157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 10/18/2020] [Accepted: 11/02/2020] [Indexed: 12/14/2022]
Abstract
3D Printing has become a mainstay of industry, with several applications in the medical field. One area that could benefit from 3D printing is intestinal failure due to injury or genetic malformations. We bioprinted cylindrical tubes from rat vascular cells that were sized to form biopatches. 2 mm enterotomies were made in the small intestine of male Sprague-Dawley rats, and sealed with biopatches. These intestinal segments were connected to an ex vivo perfusion device that provided independent extraluminal and intraluminal perfusion. The fluorescence signal of fluorescein isothiocyanate (FITC)-inulin in the intraluminal perfusate, a non-absorbable fluorescent marker of intestinal integrity, was measured every 15 min over 90 min, and used to assess the integrity of the segments under both continuous perfusion and alternate-flow perfusion. Enterotomies were made an inch away from the ileocecal junction in male Wistar rats and sealed with biopatches. The animals were monitored daily and euthanized at post-operative days 7, 14, 21, and 30. Blinded histopathological analysis was conducted to compare the patch segments to native intestine. Biopatch-sealed intestinal segments withstood both continuous and pulsatile flow rates without leakage of FITC-inulin above the control baseline. 21 of 26 animals survived with normal activity, weight gain, and stool output. Histopathology of the explanted segments showed progressive villi and crypt formation over the enterotomies, with complete restoration of the epithelium by 30 days. This study presents a novel application of 3D bioprinting to develop a universal repair patch that can seal lesions in vivo, and fully integrate into the native intestine.
Collapse
Affiliation(s)
- Renee M Maina
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Maria J Barahona
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Peter Geibel
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Taras Lysyy
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Michele Finotti
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA.,Transplantation & Hepatobiliary Surgery, University of Padova, Padova, Italy
| | - Toshihiko Isaji
- Division of Vascular Surgery, Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Brian Wengerter
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - SueAnn Mentone
- Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Alan Dardik
- Division of Vascular Surgery, Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - John P Geibel
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut, USA.,Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, Connecticut, USA
| |
Collapse
|
6
|
Lysyy T, Lalani AS, Olek EA, Diala I, Geibel JP. The calcium-sensing receptor: A novel target for treatment and prophylaxis of neratinib-induced diarrhea. Pharmacol Res Perspect 2019; 7:e00521. [PMID: 31523434 PMCID: PMC6743423 DOI: 10.1002/prp2.521] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 06/17/2019] [Accepted: 06/23/2019] [Indexed: 11/08/2022] Open
Abstract
Diarrhea is one of the most commonly reported adverse effect of hemotherapy and targeted cancer therapies, such as tyrosine kinase inhibitors (TKI), which often significantly impact patient quality of life, morbidity, and mortality. Neratinib is an oral, irreversible pan-HER tyrosine kinase inhibitor, which is clinically active in HER2-positive breast cancer. Diarrhea is the most common side effect of this potent anticancer drug and the reasons for this adverse effect are still largely unclear. We have recently shown that activation of the calcium-sensing Receptor (CaSR) can inhibit secretagogue-induced diarrhea in the colon, therefore we hypothesized that CaSR activation may also mitigate neratinib-induced diarrhea. Using an established ex vivo model of isolated intestinal segments, we investigated neratinib-induced fluid secretion and the ability of CaSR activation to abate the secretion. In our study, individual segments of the rat intestine (proximal, middle, distal small intestine, and colon) were procured and perfused intraluminally with various concentrations of neratinib (10, 50, 100 nmol L-1). In a second set of comparison experiments, intraluminal calcium concentration was modulated (from 1.0 to 5.0 or 7.0 mmol L-1), both pre- and during neratinib exposure. In a separate series of experiments R-568, a known calcimimetic was used CaSR activation and effect was compared to elevated Ca2+ concentration (5.0 and 7.0 mmol L-1). As a result, CaSR activation with elevated Ca2+ concentration (5.0 and 7.0 mmol L-1) or R-568 markedly reduced neratinib-induced fluid secretion in a dose-dependent manner. Pre-exposure to elevated luminal calcium solutions (5.0 and 7.0 mmol L-1) also prevented neratinib-induced fluid secretion. In conclusion, exposure to luminal neratinib resulted in a pronounced elevation in fluid secretion in the rat intestine. Increasing luminal calcium inhibits the neratinib-associated fluid secretion in a dose-dependent manner. These results suggest that CaSR activation may be a potent therapeutic target to reduce chemotherapy-associated diarrhea.
Collapse
Affiliation(s)
- Taras Lysyy
- Department of SurgeryYale University School of MedicineNew HavenCTUSA
| | | | | | | | - John P. Geibel
- Department of SurgeryYale University School of MedicineNew HavenCTUSA
- Department of Cellular and Molecular PhysiologyYale University School of MedicineNew HavenCTUSA
| |
Collapse
|
7
|
Barahona MJ, Maina RM, Lysyy T, Finotti M, Caturegli G, Baratta V, D'Amico F, Mulligan D, Geibel JP. Activation of the Calcium Sensing Receptor Decreases Secretagogue-Induced Fluid Secretion in the Rat Small Intestine. Front Physiol 2019; 10:439. [PMID: 31130866 PMCID: PMC6509940 DOI: 10.3389/fphys.2019.00439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 04/01/2019] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The calcium-sensing receptor (CaSR) has been localized and characterized in numerous tissues throughout the body. In the mammalian gastrointestinal tract, the CaSR is known to act as a nutrient sensor and has recently been found to play a role in intestinal fluid and electrolyte balance. This study aims to demonstrate the functionality of the CaSR as a modulator of fluid secretion and absorption along the small intestine. METHODS Small intestine regions (proximal, middle, and distal) were isolated from Sprague Dawley rats and loaded into an ex vivo intestinal perfusion device that provides independent intraluminal and extraluminal (serosa/basolateral) perfusion. The regions were perfused with 5 and 7 mM of Ca2+, both in the presence and absence of forskolin (FSK), a potent secretagogue. Control experiments were conducted with intraluminal perfusate containing standard Ringer-HEPES buffer with a physiological concentration of Ca2+ (1 mM). A second set of comparison experiments was performed with intraluminal perfusates containing AC-265347, a CaSR activator and agonist, in the presence of FSK. In all experimental conditions, the intraluminal perfusate contained fluorescein isothiocyanate (FITC)-inulin, a nonabsorbable fluorescent marker of secretion and/or absorption. Intraluminal fluorescence signal was utilized as a measure of water movement at the start of the experiment and every 15 min for 90 min. RESULTS Under physiological conditions, increasing the concentration of Ca2+ in the luminal perfusate reduced intestinal fluid secretion in all regions. At a Ca2+ concentration of 7 mM, net fluid absorption was observed in all regions. In the presence of FSK, 5 mM Ca2+ significantly decreased fluid secretion and 7 mM Ca2+ abolished FSK-induced fluid secretion. Intraluminal perfusion with 5 mM Ca2+ was as effective as AC-265347, in reducing secretagogue-induced fluid hypersecretion in the proximal and middle regions. CONCLUSION This study concludes that apical CaSR is active along the small intestine. Its activation by Ca2+ and/or calcimimetics reduces fluid secretion in a dose-dependent manner, with higher Ca2+ concentrations, or application of a calcimimetic, leading to fluid absorption. We furthermore show that, in the presence of FSK, receptor activation abates FSK secretagogue-induced fluid secretion. This presents a new therapeutic target to address secretory diarrheal illnesses.
Collapse
Affiliation(s)
- Maria J Barahona
- Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - Renee M Maina
- Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - Taras Lysyy
- Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - Michele Finotti
- Department of Surgery, Yale School of Medicine, New Haven, CT, United States.,Transplantation and Hepatobiliary Surgery, University of Padua, Padua, Italy
| | - Giorgio Caturegli
- Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - Vanessa Baratta
- Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - Francesco D'Amico
- Department of Surgery, Yale School of Medicine, New Haven, CT, United States.,Transplantation and Hepatobiliary Surgery, University of Padua, Padua, Italy
| | - David Mulligan
- Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - John P Geibel
- Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| |
Collapse
|