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Khalifa MO, Yan C, Chai Y, Ito K, Zhang SH, Li TS. Hydrostatic pressure mediates epithelial-mesenchymal transition of cholangiocytes through RhoA/ROCK and TGF-β/smad pathways. PLoS One 2024; 19:e0300548. [PMID: 38578740 PMCID: PMC10997127 DOI: 10.1371/journal.pone.0300548] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 02/28/2024] [Indexed: 04/07/2024] Open
Abstract
Biomechanical cue within the tissue microenvironment is known to play a critical role in regulating cell behaviors and maintaining tissue homeostasis. As hydrostatic pressure often increases in biliary system under pathological states, we investigated the effect of the moderate elevation of the hydrostatic pressure on biliary epithelial cells, especially on the epithelial-mesenchymal transition (EMT). Human intrahepatic biliary epithelial cells were loaded to hydrostatic pressure using a commercial device. We found that loading the cells to 50 mmHg hydrostatic pressure induced obvious morphological changes and significantly upregulated vimentin, ZEB1, and pSmad2/3, fibronectin, and collagen 1α. All changes induced by hydrostatic pressure loading were effectively mitigated by either ROCK inhibitor (Y-27632) or ALK5 inhibitor (SB-431542). Our in vitro experimental data suggests that hydrostatic pressure loading induces EMT of cholangiocytes through RhoA/ROCK and TGF-β/Smad pathways. Elevated hydrostatic pressure in biliary duct system under pathological states may promote the biliary epithelial cells shifting to profibrotic and mesenchymal characteristics.
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Affiliation(s)
- Mahmoud Osman Khalifa
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
- Department of Molecular Bone Biology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- Department of Anatomy and Embryology, Veterinary Medicine, Aswan University, Aswan, Egypt
| | - Chen Yan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Yong Chai
- Department of General Surgery, Jiangxi Provincial Children’s Hospital, Nanchang, Jiangxi, China
| | - Kosei Ito
- Department of Molecular Bone Biology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Shou-Hua Zhang
- Department of General Surgery, Jiangxi Provincial Children’s Hospital, Nanchang, Jiangxi, China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
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2
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Kawabata T, Sekiya R, Goto S, Li TS. Chronic replication stress invokes mitochondria dysfunction via impaired parkin activity. Sci Rep 2024; 14:7877. [PMID: 38570643 PMCID: PMC10991263 DOI: 10.1038/s41598-024-58656-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 04/02/2024] [Indexed: 04/05/2024] Open
Abstract
Replication stress is a major contributor to tumorigenesis because it provides a source of chromosomal rearrangements via recombination events. PARK2, which encodes parkin, a regulator of mitochondrial homeostasis, is located on one of the common fragile sites that are prone to rearrangement by replication stress, indicating that replication stress may potentially impact mitochondrial homeostasis. Here, we show that chronic low-dose replication stress causes a fixed reduction in parkin expression, which is associated with mitochondrial dysfunction, indicated by an increase in mtROS. Consistent with the major role of parkin in mitophagy, reduction in parkin protein expression was associated with a slight decrease in mitophagy and changes in mitochondrial morphology. In contrast, cells expressing ectopic PARK2 gene does not show mtROS increases and changes in mitochondrial morphology even after exposure to chronic replication stress, suggesting that intrinsic fragility at PARK2 loci associated with parkin reduction is responsible for mitochondrial dysfunction caused by chronic replication stress. As endogenous replication stress and mitochondrial dysfunction are both involved in multiple pathophysiology, our data support the therapeutic development of recovery of parkin expression in human healthcare.
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Affiliation(s)
- Tsuyoshi Kawabata
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan.
| | - Reiko Sekiya
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Shinji Goto
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
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Huang HT, Huang CY, Lee CJ, Sun BJ, Jhang ZW, Wen CC, Wang YH, Li TS, Chern CY, Chen YH. The angiogenesis-modulating effects of coumarin-derivatives. Comp Biochem Physiol C Toxicol Pharmacol 2024; 278:109862. [PMID: 38382586 DOI: 10.1016/j.cbpc.2024.109862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/26/2024] [Accepted: 02/15/2024] [Indexed: 02/23/2024]
Abstract
Coumarin is a natural compound that is rich in plants. Coumarin and its derivates were reported to have many biological activities, such as anti-bacterial, anti-tumor, and anti-coagulation. In this study, we examined the angiogenic modulating activities of six previously synthesized coumarin derivatives (Compound #1-#6) in zebrafish embryos and further confirmed them in a chick model. According to the survival rate in a zebrafish model, Compound #1 (100 %), #2 (82.5-100 %), and #4 (100 %) showed much less toxicity than Compound #3 (19.2-100 %), #5 (0-100 %), and #6 (0-100 %). Using a green blood vessel fluorescent transgenic fish Tg(fli1:egfp) to record the angiogenesis-modulating effects of Compound #1, #2, and #4, we found that Compound #2 had the highest effects in interfering intersegmental vessel growth, subintestinal vein growth, and caudal vein plexus remodeling. Chick chorioallantoic membrane (CAM) assay also showed that Compound #2 exposure led to a reduction of blood vessel growth. Real-time PCR experiments revealed that Compound #2 significantly changed the expression of vascular growth-related genes flt1, cdh5, and nrp1a in zebrafish. Based on our data from zebrafish and chick models, a new coumarin-derivative (Compound #2) possesses anti-angiogenic activity with low toxicity, but further investigation in mammal models is asked to confirm our findings.
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Affiliation(s)
- Han-Ting Huang
- Department of Chemistry, Tamkang University, Tamsui, Taiwan
| | | | - Chih-Jou Lee
- Department of Chemistry, Tamkang University, Tamsui, Taiwan
| | - Bo-Jie Sun
- Department of Chemistry, Tamkang University, Tamsui, Taiwan
| | - Zong-Wei Jhang
- Department of Applied Chemistry, National Chia-Yi University, Chiayi City 600, Taiwan
| | - Chi-Chung Wen
- Department of Mathematics, Tamkang University, Tamsui, New Taipei City 25137, Taiwan
| | - Yun-Hsin Wang
- Department of Chemistry, Tamkang University, Tamsui, Taiwan
| | - Tao-Sheng Li
- Stem Cell Biology Laboratory, Atomic Bomb Disease Institute, Nagasaki University, Japan
| | - Ching-Yuh Chern
- Department of Applied Chemistry, National Chia-Yi University, Chiayi City 600, Taiwan.
| | - Yau-Hung Chen
- Department of Chemistry, Tamkang University, Tamsui, Taiwan.
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Huang K, Yan C, Abdelghany L, Zhang X, Jingu K, Li TS. Nicaraven attenuates the acquired radioresistance of established tumors in mouse models via PARP inhibition. Mol Cell Biochem 2024:10.1007/s11010-024-04958-6. [PMID: 38466467 DOI: 10.1007/s11010-024-04958-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/03/2024] [Indexed: 03/13/2024]
Abstract
Nicaraven has been reported to inhibit the activity of poly (ADP-ribose) polymerase (PARP). In this study, we investigated the probable ability of nicaraven to attenuate cancer radioresistance during fractionated radiotherapy. Tumor models were established in C57BL/6 mice and BALB/c nude mice by subcutaneous injection of Lewis mouse lung carcinoma cancer cells and A549 human lung cancer cells, respectively. When the tumors had grown to approximately 100 mm3, we initiated fractionated radiotherapy. Nicaraven or saline was administered immediately after each irradiation exposure. Compared to saline treatment, nicaraven administration significantly induced gamma-H2AX foci formation and cell apoptosis in tumors at 1 or 3 days after an additional challenge exposure to 10 Gy and inhibited tumor growth during the short-term follow-up period, suggesting increased radiosensitivity of cancer cells. Moreover, the expression of PARP in tumor tissue was decreased by nicaraven administration. Our data suggest that nicaraven likely attenuates the acquired radioresistance of cancers through PARP inhibition.
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Affiliation(s)
- Kai Huang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Chen Yan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Lina Abdelghany
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Xu Zhang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Keiichi Jingu
- Department of Radiation Oncology, Graduate School of Medicine, Tohoku University, 2-1 Seiryomachi, Aoba Ward, Sendai, Miyagi, 980-0872, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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Hasan MM, Sekiya R, Zhang X, Yassouf MY, Li TS. Comparison of hypoxia- and hyperoxia-induced alteration of epigene expression pattern in lungs of Pleurodeles waltl and Mus musculus. PLoS One 2024; 19:e0299661. [PMID: 38416753 PMCID: PMC10901355 DOI: 10.1371/journal.pone.0299661] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 02/12/2024] [Indexed: 03/01/2024] Open
Abstract
Epigenetics is an emerging field of research because of its involvement in susceptibility to diseases and aging. Hypoxia and hyperoxia are known to be involved widely in various pathophysiologies. Here, we compared the differential epigene expression pattern between Pleurodeles waltl and Mus musculus (commonly known as Iberian ribbed newt and mouse, respectively) exposed to hypoxia and hyperoxia. Adult healthy newts and mice were exposed to normobaric hypoxia (8% O2) and hyperoxia (80% O2) for 2 hours. We collected the lungs and analyzed the expression of hypoxia-inducible factor 1 alpha (Hif1α) and several key epigenes from DNA methyltransferase (DNMT) family, histone deacetylase (HDAC) family, and methyl-CpG binding domain (MBD) family. The exposure to hypoxia significantly increased the mRNA levels of DNA methyltransferase 3 alpha (Dnmt3α), methyl-CpG binding domain protein 2 (Mbd2), Mbd3, and histone deacetylase 2 (Hdac2) in lungs of newts, but decreased the mRNA levels of DNA methyltransferase 1 (Dnmt1) and Dnmt3α in lungs of mice. The exposure to hyperoxia did not significantly change the expression of any gene in either newts or mice. The differential epigene expression pattern in response to hypoxia between newts and mice may provide novel insights into the prevention and treatment of disorders developed due to hypoxia exposure.
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Affiliation(s)
- Md. Mahmudul Hasan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Sakamoto, Nagasaki, Japan
| | - Reiko Sekiya
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Sakamoto, Nagasaki, Japan
| | - Xu Zhang
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Sakamoto, Nagasaki, Japan
| | - Mhd Yousuf Yassouf
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Sakamoto, Nagasaki, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Sakamoto, Nagasaki, Japan
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Huang Z, Nie H, Liu G, Li P, Peng YH, Xiao J, Gu W, Li TS. Losartan alleviates renal fibrosis by inhibiting the biomechanical stress-induced epithelial-mesenchymal transition of renal epithelial cells. Arch Biochem Biophys 2023; 748:109770. [PMID: 37783367 DOI: 10.1016/j.abb.2023.109770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/04/2023]
Abstract
Angiotensin receptor blockers (ARBs) have been reported to be beneficial of renal fibrosis, but the molecular and cellular mechanisms are still unclear. In this study, we investigated the effectiveness and relevant mechanism of ARBs in alleviating renal fibrosis, especially by focusing on biomechanical stress-induced epithelial to mesenchymal transition (EMT) of renal epithelial cells. Unilateral ureteral obstruction (UUO) renal fibrosis model was established in mice by ligating the left ureter, and then randomly received losartan at a low dose (1 mg/kg) or a regular dose (3 mg/kg) for 2 weeks. Compared to the control, histological analysis showed that losartan treatment at either a low dose or a regular dose effectively attenuated renal fibrosis in the UUO model. To further understand the mechanism, we ex vivo loaded primary human renal epithelial cells to 50 mmHg hydrostatic pressure. Western blot and immunostaining analyses indicated that the loading to 50 mmHg hydrostatic pressure for 24 h significantly upregulated vimentin, β-catenin and α-SMA, but downregulated E-cadherin in renal epithelial cells, suggesting the EMT. The addition of 10 or 100 nM losartan in medium effectively attenuated the EMT of renal epithelial cells induced by 50 mmHg hydrostatic pressure loading. Our in vivo and ex vivo experimental data suggest that losartan treatment, even at a low dose can effectively alleviate renal fibrosis in mouse UUO model, at least partly by inhibiting the biomechanical stress-induced EMT of renal epithelial cells. A low dose of ARBs may repurpose for renal fibrosis treatment.
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Affiliation(s)
- Zisheng Huang
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Japan; Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Han Nie
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Japan; Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Geng Liu
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Japan; Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Peilin Li
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, 510180, China
| | - Yong-Hua Peng
- Department of Nephrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Jie Xiao
- Department of Nephrology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Weili Gu
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, 510180, China.
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Japan; Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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Abdelghany L, Xu Y, Sekiya R, Yan C, Jingu K, Li TS. Nicaraven Exerts a Limited Effect on Radiation-Induced Inhibition of Tumor Growth in a Subcutaneous Murine Tumor Model. Radiat Res 2023; 200:382-388. [PMID: 37702409 DOI: 10.1667/rade-22-00212.1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 08/03/2023] [Indexed: 09/14/2023]
Abstract
Nicaraven selectively protects normal tissue from radiation-induced injury. To further develop the clinical application of nicaraven for mitigating the side effects of cancer radiotherapy, we investigated the potential effect of nicaraven administration in radiation-induced inhibition of tumor growth. A subcutaneous tumor model was established in mice by the injection of Lewis lung cancer cells at the back of the chest. X-ray radiation was delivered to the thoracic area and different doses of nicaraven (0, 20, 50, 100 mg/kg) were administrated intraperitoneally pre- or post-irradiation. The tumor size was measured every other day. Mice were euthanized on day 30, and the tumor weight and the levels of cytokines in tumor tissue were measured. Pre- or post-irradiation administration of nicaraven up to a dose of 100 mg/kg did not significantly diminish the radiation-induced inhibition of tumor growth, but post-irradiation administration of 20 and 50 mg/kg nicaraven resulted in relatively lower tumor weight. The levels of IL-1β, IL-6, IL-10, MCP-1, MIP-2a, TGF-β1, VEGF, p53, p21, cyclin D1 and caspase-3 in tumor tissue did not change by nicaraven administration and were not significantly associated with the tumor weights. According to our experimental data, nicaraven will not significantly diminish the radiation-induced inhibition of tumor growth, even with pre-irradiation administration at a high dose.
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Affiliation(s)
- Lina Abdelghany
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Yong Xu
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Reiko Sekiya
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Chen Yan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Keiichi Jingu
- Department of Radiation Oncology, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
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Xu Y, Li Y, Zhai D, Yan C, Liang J, Ichinomiya T, Hara T, Inadomi C, Li TS. Hyperoxia but not high tidal volume contributes to ventilator-induced lung injury in healthy mice. BMC Pulm Med 2023; 23:354. [PMID: 37730597 PMCID: PMC10510264 DOI: 10.1186/s12890-023-02626-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/31/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Mechanical ventilation is a supportive therapy used to maintain respiratory function in several clinical and surgical cases but is always accompanied by lung injury risk due to improper treatment. We investigated how tidal volume and oxygen delivery would contribute independently or synergistically to ventilator-induced lung injury (VILI). METHODS Under general anesthesia and tracheal intubation, healthy female C57BL/6 N mice (9 weeks old) were randomly ventilated for 2 h by standard (7 ml/kg) or high (14 ml/kg) tidal volume at positive end-expiratory pressure (PEEP) of 2 cmH2O, with room air, 50% O2 (moderate hyperoxia), or 100% O2 (severe hyperoxia); respectively. Mice were sacrificed 4 h after mechanical ventilation, and lung tissues were collected for experimental assessments on lung injury. RESULTS Compared with the healthy control, severe hyperoxia ventilation by either standard or high tidal volume resulted in significantly higher wet-to-dry lung weight ratio and higher levels of IL-1β and 8-OHdG in the lungs. However, moderate hyperoxia ventilation, even by high tidal volume did not significantly increase the levels of IL-1β and 8-OHdG in the lungs. Western blot analysis showed that the expression of RhoA, ROCK1, MLC2, and p-MLC2 was not significantly induced in the ventilated lungs, even by high tidal volume at 2 cmH2O PEEP. CONCLUSION Severe hyperoxia ventilation causes inflammatory response and oxidative damage in mechanically ventilated lungs, while high tidal volume ventilation at a reasonable PEEP possibly does not cause VILI.
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Affiliation(s)
- Yong Xu
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Yu Li
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang City, 330006, Jiangxi Province, China
| | - Da Zhai
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Chen Yan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Jingyan Liang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225000, Jiangsu, P.R. China
| | - Taiga Ichinomiya
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Tetsuya Hara
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Chiaki Inadomi
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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Zhou ML, Zhang L, Li TS, Liu ZY. [Advances in the diagnosis and treatment of invasive fungal disease in HIV-infected patients]. Zhonghua Nei Ke Za Zhi 2023; 62:1148-1154. [PMID: 37650191 DOI: 10.3760/cma.j.cn112138-20221008-00737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Affiliation(s)
- M L Zhou
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences,Beijing 100730,China State Key Laboratory of Difficult and Severe Diseases and Rare Diseases,Peking Union Medical College Hospital,Beijing 100730,China
| | - L Zhang
- State Key Laboratory of Difficult and Severe Diseases and Rare Diseases,Peking Union Medical College Hospital,Beijing 100730,China Department of Infectious Diseases,Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- State Key Laboratory of Difficult and Severe Diseases and Rare Diseases,Peking Union Medical College Hospital,Beijing 100730,China Department of Infectious Diseases,Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Y Liu
- State Key Laboratory of Difficult and Severe Diseases and Rare Diseases,Peking Union Medical College Hospital,Beijing 100730,China Department of Infectious Diseases,Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Mizoguchi S, Tsuchiya T, Doi R, Obata T, Iwatake M, Hashimoto S, Matsumoto H, Yukawa H, Hayashi H, Li TS, Yamamoto K, Matsumoto K, Miyazaki T, Tomoshige K, Nagayasu T. A novel ex vivo lung cancer model based on bioengineered rat lungs. Front Bioeng Biotechnol 2023; 11:1179830. [PMID: 37434755 PMCID: PMC10332157 DOI: 10.3389/fbioe.2023.1179830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 06/05/2023] [Indexed: 07/13/2023] Open
Abstract
Introduction: Two-dimensional cell cultures have contributed substantially to lung cancer research, but 3D cultures are gaining attention as a new, more efficient, and effective research model. A model reproducing the 3D characteristics and tumor microenvironment of the lungs in vivo, including the co-existence of healthy alveolar cells with lung cancer cells, is ideal. Here, we describe the creation of a successful ex vivo lung cancer model based on bioengineered lungs formed by decellularization and recellularization. Methods: Human cancer cells were directly implanted into a bioengineered rat lung, which was created with a decellularized rat lung scaffold reseeded with epithelial cells, endothelial cells and adipose-derived stem cells. Four human lung cancer cell lines (A549, PC-9, H1299, and PC-6) were applied to demonstrate forming cancer nodules on recellularized lungs and histopathological assessment were made among these models. MUC-1 expression analysis, RNA-seq analysis and drug response test were performed to demonstrate the superiority of this cancer model. Results: The morphology and MUC-1 expression of the model were like those of lung cancer in vivo. RNA sequencing revealed an elevated expression of genes related to epithelial-mesenchymal transition, hypoxia, and TNF-α signaling via NF-κB; but suppression of cell cycle-related genes including E2F. Drug response assays showed that gefitinib suppressed PC-9 cell proliferation equally well in the 3D lung cancer model as in 2D culture dishes, albeit over a smaller volume of cells, suggesting that fluctuations in gefitinib resistance genes such as JUN may affect drug sensitivity. Conclusions: A novel ex vivo lung cancer model was closely reproduced the 3D structure and microenvironment of the actual lungs, highlighting its possible use as a platform for lung cancer research and pathophysiological studies.
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Affiliation(s)
- Satoshi Mizoguchi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomoshi Tsuchiya
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Thoracic Surgery, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Ryoichiro Doi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomohiro Obata
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mayumi Iwatake
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Shintaro Hashimoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hirotaka Matsumoto
- School of Information and Data Sciences, Nagasaki University, Nagasaki, Japan
| | - Hiroshi Yukawa
- Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University, Nagoya, Japan
| | - Hiroko Hayashi
- Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Kazuko Yamamoto
- Department of Respiratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Keitaro Matsumoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takuro Miyazaki
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Koichi Tomoshige
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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11
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Guo FP, Cong Y, Ge Y, Li TS. [Giant hepatic hemangioma manifested as fever of unknown: a case report]. Zhonghua Nei Ke Za Zhi 2023; 62:718-720. [PMID: 37263958 DOI: 10.3760/cma.j.cn112138-20220616-00456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- F P Guo
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Cong
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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12
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Hasan M, Sekiya R, Li TS. Ex vivo expansion of primary cells from limb tissue of Pleurodeles waltl. Dev Growth Differ 2023. [PMID: 37209318 DOI: 10.1111/dgd.12866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/29/2022] [Revised: 04/18/2023] [Accepted: 05/15/2023] [Indexed: 05/22/2023]
Abstract
Pleurodeles waltl comes to light as an animal model, especially in regeneration study, but in deep study on molecular mechanisms has been limited due to the absence of primary tissue cells for widely usage. Thus, we aimed to grow primary cells from limb tissue of P. waltl for in vitro experiments. Limb tissues were cut into small pieces and seeded as "explant" on culture dish coated with fibronectin and gelatin. Compared to the control without coating, both fibronectin and gelatin coating supports quicker outgrowth of cells from explant and faster cell adhesion, although fibronectin shows significant better performance than gelatin. Interestingly, doubling time of cells on fibronectin- and gelatin-coated surface is almost same (42.39 ± 2.79 h vs. 42.91 ± 3.69 h) and was not significantly differed from the non-coated condition (49.64 ± 3.63 h). The cryopreserved cells were successfully recovered and showed similar multiplying capacity like fresh cells. Senescent cells were barely detected even through long-term sub-culture (>15 passages). Moreover, enhanced fluorescence of MitoSOX™ Red in cells under H2 O2 exposure confirmed the respondence to chemical stimuli. Collectively, we are able to grow enough number of good quality cells from P. waltl limb tissue for in vitro experiments, and fibronectin coating provides the best biocompatible environment for cell outgrow and attachment. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Mahmudul Hasan
- Department of Stem Cell Biology, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
| | - Reiko Sekiya
- Department of Stem Cell Biology, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
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13
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Khalifa MO, Moriwaki T, Zhang S, Zhou W, Ito K, Li TS. Negative pressure induces dedifferentiation of hepatocytes via RhoA/ROCK pathway. Biochem Biophys Res Commun 2023; 667:104-110. [PMID: 37210870 DOI: 10.1016/j.bbrc.2023.05.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 04/21/2023] [Revised: 05/08/2023] [Accepted: 05/13/2023] [Indexed: 05/23/2023]
Abstract
Biomechanical forces are known to regulate the biological behaviors of cells. Although negative pressure has been used for wound healing, it is still unknown about its role in regulating cell plasticity. We investigated whether negative pressure could induce the dedifferentiation of hepatocytes. Using a commercial device, we found that the exposure of primary human hepatocytes to -50 mmHg quickly induced the formation of stress fibers and obviously changed cell morphology in 72 h. Moreover, the exposure of hepatocytes to -50 mmHg significantly upregulated RhoA, ROCK1, and ROCK2 in 1-6 h, and dramatically enhanced the expression of marker molecules on "stemness", such as OCT4, SOX2, KLF4, MYC, NANOG, and CD133 in 6-72 h. However, all these changes in hepatocytes induced by -50 mmHg stimulation were almost abrogated by ROCK inhibitor Y27623. Our data suggest that an appropriate force of negative pressure stimulation can effectively induce the dedifferentiation of hepatocytes via RhoA/ROCK pathway activation.
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Affiliation(s)
- Mahmoud Osman Khalifa
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan; Department of Anatomy and Embryology, Veterinary Medicine, Aswan University, Aswan, Egypt; Department of Molecular Bone Biology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Takahito Moriwaki
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Shouhua Zhang
- Department of General Surgery, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi, China
| | - Wei Zhou
- Department of Gastrointestinal Surgery, Jiangxi Provincial Cancer Hospital Nanchang, Jiangxi Province, China
| | - Kosei Ito
- Department of Molecular Bone Biology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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14
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You H, Sun YM, Zhang MY, Nan YM, Xu XY, Li TS, Wang GQ, Hou JL, Duan ZP, Wei L, Wang FS, Jia JD, Zhuang H. [Interpretation of the essential updates in guidelines for the prevention and treatment of chronic hepatitis B (Version 2022)]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:385-388. [PMID: 37248977 DOI: 10.3760/cma.j.cn501113-20230324-00127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Chinese Society of Hepatology and Chinese Society of Infectious Diseases, Chinese Medical Association update the guidelines for the prevention and treatment of chronic hepatitis B (version 2022) in 2022. The latest guidelines recommend more extensive screening and more active antiviral treating for hepatitis B virus infection. This article interprets the essential updates in the guidelines to help deepen understanding and better guide the clinical practice.
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Affiliation(s)
- H You
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Y M Sun
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - M Y Zhang
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Y M Nan
- Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - X Y Xu
- Peking University First Hospital, Beijing 100034, China
| | - T S Li
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G Q Wang
- Peking University First Hospital, Beijing 100034, China
| | - J L Hou
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z P Duan
- Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - L Wei
- Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing 102218, China
| | - F S Wang
- The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - J D Jia
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - H Zhuang
- Peking University Health Science Center, Beijing 100191, China
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15
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Zha D, Yang Y, Huang X, Wang Z, Lin H, Yang L, Xu L, Wu Y, Huang H, Wang Y, Xin Z, Wu X, Xiao YF, Li TS, Deng KY, Xin HB, Qian Y. Nicaraven protects against endotoxemia-induced inflammation and organ injury through modulation of AMPK/Sirt1 signaling in macrophages. Eur J Pharmacol 2023; 946:175666. [PMID: 36944380 DOI: 10.1016/j.ejphar.2023.175666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/28/2022] [Revised: 03/17/2023] [Accepted: 03/17/2023] [Indexed: 03/23/2023]
Abstract
Endotoxemia is a disease characterized by systemic inflammatory responses and organ injury caused by lipopolysaccharide (LPS) infection, with high mortality. Nicaraven (AVS), a potent hydroxyl radical scavenger, has been proven to regulate the inflammatory response in tumors. To investigate the protective effects and mechanisms of AVS in endotoxemia, mice were injected intraperitoneally with LPS to induce endotoxemia. AVS treatment significantly decreased the levels of pro-inflammatory cytokines in the serum, reduced neutrophil infiltration, attenuated multiple organ injury, and increased the survival rate in LPS-challenged mice. In the LPS-induced inflammatory model of macrophages, AVS inhibited macrophage activation, suppressed nitric oxide (NO) production, and inhibited the expression and secretion of pro-inflammatory cytokines. Mechanistically, AVS treatment up-regulated silence information regulator transcript-1 (Sirt1) expression in a time- and dose-dependent manner. AVS treatment activated the AMP-dependent protein kinase (AMPK)/Sirt1 signaling pathway and suppressed the activation of nuclear factor kappa B (NF-κB) in macrophages exposed to LPS. However, the anti-inflammatory effects of AVS could be reversed by the AMPK, the Sirt1 inhibitor, or the histone deacetylase inhibitor. We confirmed that the AMPK inhibitor inhibited AVS-mediated AMPK/Sirt1 activation and NF-κB p65 acetylation. These results suggested that AVS alleviated endotoxemia by activating the AMPK/Sirt1 signaling pathway in macrophages.
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Affiliation(s)
- Duoduo Zha
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Yaqin Yang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Xiang Huang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Ziwei Wang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Hongru Lin
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Lingyi Yang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Luyan Xu
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Yijia Wu
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Houda Huang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Yihan Wang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Zhaochen Xin
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Xuehan Wu
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Yun-Fei Xiao
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Ke-Yu Deng
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China
| | - Hong-Bo Xin
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China.
| | - Yisong Qian
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, 330031, China.
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16
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Li TS, Xiao N. [Attaching importance to the standardized development of early rehabilitation in critically ill children]. Zhonghua Er Ke Za Zhi 2023; 61:196-198. [PMID: 36849343 DOI: 10.3760/cma.j.cn112140-20221025-00904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Affiliation(s)
- T S Li
- Department of Rehabilitation Medicine, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - N Xiao
- Department of Rehabilitation Medicine, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
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17
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Zhang G, Liu Z, Deng J, Liu L, Li Y, Weng S, Guo C, Zhou Z, Zhang L, Wang X, Liu G, Guo J, Bai J, Wang Y, Du Y, Li TS, Tang J, Zhang J. Smooth muscle cell fate decisions decipher a high-resolution heterogeneity within atherosclerosis molecular subtypes. J Transl Med 2022; 20:568. [PMID: 36474294 PMCID: PMC9724432 DOI: 10.1186/s12967-022-03795-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/24/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Mounting evidence has revealed the dynamic variations in the cellular status and phenotype of the smooth muscle cell (SMC) are vital for shaping the atherosclerotic plaque microenvironment and ultimately mapping onto heterogeneous clinical outcomes in coronary artery disease. Currently, the underlying clinical significance of SMC evolutions remains unexplored in atherosclerosis. METHODS The dissociated cells from diseased segments within the right coronary artery of four cardiac transplant recipients and 1070 bulk samples with atherosclerosis from six bulk cohorts were retrieved. Following the SMC fate trajectory reconstruction, the MOVICS algorithm integrating the nearest template prediction was used to develop a stable and robust molecular classification. Subsequently, multi-dimensional potential biological implications, molecular features, and cell landscape heterogeneity among distinct clusters were decoded. RESULTS We proposed an SMC cell fate decision signature (SCFDS)-based atherosclerosis stratification system and identified three SCFDS subtypes (C1-C3) with distinguishing features: (i) C1 (DNA-damage repair type), elevated base excision repair (BER), DNA replication, as well as oxidative phosphorylation status. (ii) C2 (immune-activated type), stronger immune activation, hyper-inflammatory state, the complex as well as varied lesion microenvironment, advanced stage, the most severe degree of coronary stenosis severity. (iii) C3 (stromal-rich type), abundant fibrous content, stronger ECM metabolism, immune-suppressed microenvironment. CONCLUSIONS This study uncovered atherosclerosis complex cellular heterogeneity and a differentiated hierarchy of cell populations underlying SMC. The novel high-resolution stratification system could improve clinical outcomes and facilitate individualized management.
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Affiliation(s)
- Ge Zhang
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
| | - Zaoqu Liu
- grid.412633.10000 0004 1799 0733Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Jinhai Deng
- grid.13097.3c0000 0001 2322 6764Richard Dimbleby Laboratory of Cancer Research, School of Cancer & Pharmaceutical Sciences, King’s College London, London, UK
| | - Long Liu
- grid.412633.10000 0004 1799 0733Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Yu Li
- grid.260463.50000 0001 2182 8825Medical College, Nanchang University, Nanchang, 330006 Jiangxi China
| | - Siyuan Weng
- grid.412633.10000 0004 1799 0733Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Chunguang Guo
- grid.412633.10000 0004 1799 0733Department of Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan China
| | - Zhaokai Zhou
- grid.412633.10000 0004 1799 0733Department of Pediatric Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
| | - Li Zhang
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
| | - Xiaofang Wang
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
| | - Gangqiong Liu
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
| | - Jiacheng Guo
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
| | - Jing Bai
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
| | - Yunzhe Wang
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
| | - Youyou Du
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
| | - Tao-Sheng Li
- grid.174567.60000 0000 8902 2273Department of Stem Cell Biology, Atomic Bomb Diseases Institute, Nagasaki University, Nagasaki, 852-8523 Japan
| | - Junnan Tang
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
| | - Jinying Zhang
- grid.412633.10000 0004 1799 0733Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450052 Henan China ,Henan Province Key Laboratory of Cardiac Injury and Repair, Zhengzhou, 450052 Henan China ,Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, 450052 Henan China
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18
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Abdelghany L, Kawabata T, Goto S, Jingu K, Li TS. Nicaraven induces programmed cell death by distinct mechanisms according to the expression levels of Bcl-2 and poly (ADP-ribose) glycohydrolase in cancer cells. Transl Oncol 2022; 26:101548. [PMID: 36206675 PMCID: PMC9535466 DOI: 10.1016/j.tranon.2022.101548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 09/14/2022] [Accepted: 09/21/2022] [Indexed: 11/25/2022] Open
Abstract
The PARP-1 expression level and poly (ADP-ribosyl)ation activity in cancer markedly affect the therapeutic outcome. Nicaraven, a free radical scavenger has been found to inhibit PARP, but the effect on cancer cells is still unclear. In this study, we investigated the potential role and molecular mechanism of nicaraven on cancer cells. Using U937 lymphoma cells and HCT-8 colorectal cancer cells, we found that nicaraven moderately reduced the cell viability of both cells in a dose-dependent manner. Interestingly, nicaraven significantly induced apoptosis of U937 cells that are dominantly expressing Bcl-2 but induced PAR-dependent cell death (parthanatos) of HCT-8 cells that are highly expressing poly (ADP-ribose) glycohydrolase (PARG). Based on our data, nicaraven seems to induce programmed cell death through distinct mechanisms, according to the expression levels of Bcl-2 and PARG in cancer cells.
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Affiliation(s)
- Lina Abdelghany
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Tsuyoshi Kawabata
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Shinji Goto
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Keiichi Jingu
- Department of Radiation Oncology, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan.
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19
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Xu Y, Abdelghany L, Sekiya R, Zhai D, Jingu K, Li TS. Optimization on the dose and time of nicaraven administration for mitigating the side effects of radiotherapy in a preclinical tumor-bearing mouse model. Ther Adv Respir Dis 2022; 16:17534666221137277. [PMID: 36404753 PMCID: PMC9677297 DOI: 10.1177/17534666221137277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE Radiation-induced lung injury (RILI) is one of the serious complications of radiotherapy. We have recently demonstrated that nicaraven can effectively mitigate RILI in healthy mice. Here, we further tried to optimize the dose and time of nicaraven administration for alleviating the side effects of radiotherapy in tumor-bearing mice. METHODS AND RESULTS A subcutaneous tumor model was established in the back of the chest in C57BL/6N mice by injecting Lewis lung cancer cells. Therapeutic thoracic irradiations were done, and placebo or different doses of nicaraven (20, 50, 100 mg/kg) were administrated intraperitoneally pre-irradiation (at almost 5-10 min before irradiation) or post-irradiation (within 5 min after irradiation). Mice that received radiotherapy and nicaraven were sacrificed on the 30th day, but control mice were sacrificed on the 15th day. Serum and lung tissues were collected for evaluation. Nicaraven significantly decreased the level of CCL8, but did not clearly change the levels of 8-OHdG, TGF-β, IL-1β, and IL-6 in serum. Besides these, nicaraven effectively decreased the levels of TGF-β, IL-1β, and SOD2 in the lungs, especially by post-irradiation administration with the dose of 20 mg/kg. Although there was no significant difference, the expression of SOD1, 53BP1, and caspase 3 was detected lower in the lungs of mice received nicaraven post-irradiation than that of pre-irradiation. CONCLUSION According to our data, the administration of nicaraven at a relatively low dose soon after radiotherapy will be recommended for attenuating the side effects of radiotherapy.
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Affiliation(s)
- Yong Xu
- Department of Stem Cell Biology, Atomic Bomb
Disease Institute, Nagasaki University, Nagasaki, Japan,Department of Stem Cell Biology, Graduate
School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Lina Abdelghany
- Department of Stem Cell Biology, Atomic Bomb
Disease Institute, Nagasaki University, Nagasaki, Japan,Department of Stem Cell Biology, Graduate
School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Reiko Sekiya
- Department of Stem Cell Biology, Atomic Bomb
Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Da Zhai
- Department of Stem Cell Biology, Atomic Bomb
Disease Institute, Nagasaki University, Nagasaki, Japan,Department of Stem Cell Biology, Graduate
School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Keiichi Jingu
- Department of Radiation Oncology, Graduate
School of Medicine, Tohoku University, Sendai, Japan
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20
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Li XD, Cao W, Li TS. [Perspectives on recent monkeypox outbreak in non-endemic areas]. Zhonghua Yi Xue Za Zhi 2022; 102:2148-2152. [PMID: 35872578 DOI: 10.3760/cma.j.cn112137-20220526-01162] [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: 06/15/2023]
Abstract
Monkeypox is a rare infectious disease caused by the monkeypox virus, which used to occur endemically in central and western Africa. As of 25th May, a total of 219 recently confirmed cases of monkeypox have been reported from 19 non-endemic countries. This outbreak unusually takes place in non-endemic areas for monkeypox virus and has exhibited features of high risk of human-to-human transmission. Onset of multiple human monkeypox cases may be related to the decreased level of herd cross-immunity after the cessation of smallpox vaccination. Moreover, behavioral patterns in specific populations may account for the human-to-human transmission in this outbreak. Currently, possibility of global epidemic of monkeypox is extremely low, but China should be cautious about risks of importation of monkeypox cases. The key to prevention and control is to establish a surveillance system to identify suspicious cases and close contacts as soon as possible.
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Affiliation(s)
- X D Li
- Department of Infectious Diseases, State Key Laboratory of Complex Severe and Rare Disease, Peking Union Medical College hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - W Cao
- Department of Infectious Diseases, State Key Laboratory of Complex Severe and Rare Disease, Peking Union Medical College hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, State Key Laboratory of Complex Severe and Rare Disease, Peking Union Medical College hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
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21
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Yang ZR, Zhang LF, Zhou BT, Shi XC, Cao W, Fan HW, Liu ZY, Li TS, Liu XQ. [Clinical features and influencing factors of long-term prognosis in patients with tuberculous meningitis]. Zhonghua Nei Ke Za Zhi 2022; 61:764-770. [PMID: 35764559 DOI: 10.3760/cma.j.cn112138-20220121-00069] [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: 06/15/2023]
Abstract
Objective: To investigate the clinical features and influencing factors of long-term prognosis of tuberculous meningitis(TBM), and to provide a recommendation for treatment and early intervention of TBM. Methods: Clinical data of TBM patients were retrospectively collected at Peking Union Medical College Hospital from January 2014 to December 2021. Patients who were followed-up more than one year were divided into two groups according to modified Rankin Scale (mRS). Risk factors associated with long-term prognosis were analyze by conditional logistic stepwise regression. Results: A total of 60 subjects were enrolled including 33 (55%) males and 27 (45%) females with age 15-79 (44.5±19.8) years. There were 30 cases (50%) complicated with encephalitis, 21 cases (35%) with miliary tuberculosis. The diagnosis was microbiologically confirmed in 22 patients (36.7%), including 5 cases (22.7%, 5/22) by acid-fast staining, 8 cases (36.4%, 8/22) by Mycobacterium tuberculosis (MTB) culture, and 20 cases (90.9%, 20/22) by molecular biology. The median follow-up period was 52(43, 66 ) months in 55 cases surviving more than one year. Among them, 40 cases (72.7%) were in favorable group (mRS 0-2) and 15 cases (27.3%) were in unfavorable group (mRS 3-6) with poor prognosis. The mortality rate was 20% (11/55). Elderly (OR=1.06, P=0.048 ) , hyponatremia(OR=0.81,P=0.020), high protein level in cerebrospinal fluid (CSF) (OR=3.32,P=0.033), cerebral infarction(OR=10.50,P=0.040) and hydrocephalus(OR=8.51,P=0.049) were associated with poor prognosis in TBM patients. Conclusions: The mortality rate is high in patients with TBM. Molecular biology tests improves the sensitivity and shorten the diagnosis time of TBM. Elderly, hyponatremia, high protein level in CSF, cerebral infarction and hydrocephalus are independent risk factors of long-term survival in TBM patients.
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Affiliation(s)
- Z R Yang
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L F Zhang
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Clinical Epidemiology Unit, International Epidemiology Network, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - B T Zhou
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X C Shi
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W Cao
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H W Fan
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Y Liu
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Q Liu
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Clinical Epidemiology Unit, International Epidemiology Network, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Centre for Tuberculosis Research, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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22
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Chen Y, Li TS. [To establish an effective system for the prevention and control of infectious diseases in both peacetime and epidemic period]. Zhonghua Nei Ke Za Zhi 2022; 61:711-712. [PMID: 35764554 DOI: 10.3760/cma.j.cn112138-20220430-00326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Y Chen
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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23
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Li TS, Liu Z, Yang HX, Hu YL. [Investigation and analysis of the implementation status of "Diagnosis and therapy guideline of preterm birth (2014)"]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:449-455. [PMID: 35775253 DOI: 10.3760/cma.j.cn112141-20211203-00714] [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: 06/15/2023]
Abstract
Objective: To understand the actual situation of the implementation of "Diagnosis and therapy guideline of preterm birth(2014)", "Guideline" for short, by front-line obstetricians, and to provide reference for the further update and supplement of the "Guideline". Methods: This study designed a structured questionnaire for the prominent problems in the prevention and treatment of preterm birth, which was determined by the expert team drafting the "Guideline". In October to November 2021, a cross-sectional survey was conducted among obstetricians, including members of the Perinatal Medicine Branch of Jiangsu Medical Association and the Obstetrics Subgroup,Chinese society of Obstetrics and Gynecology, Chinese Medical Association, on the implementation status of the "Guideline". The recommendations of the "Guideline" were used as standard answers to determine the implementation rate. A total of 328 valid questionnaires were collected. The total score of the questionnaire was 12 points. The questionnaire was divided into low executive ability group (<7 points) and high executive ability group (≥7 points) with a score of 7 as the threshold value, and the differences in baseline information such as hospital grade and professional title between the two groups were compared. Results: The score of 328 obstetricians was (7.6±1.6) points, including 250 (76.2%, 250/328) in the high execution group and 78 (23.8%, 78/328) in the low execution group. The execution rates of "the use of uterine contraction inhibitors for short courses"[97.0% (318/328)], "late umbilical cord breakage after birth of premature infants"[87.8% (288/328)] and "should preterm patients with intact membranes be treated with antibiotics"[86.6% (284/328)] were all over 80%, indicating good implementation. Multiple logistic regression analysis showed that hospital grade and professional title were independent factors influencing the performance of the "Guideline"(all P<0.05), and secondary hospitals had lower scores and worse execution than tertiary hospitals (OR=0.42, 95%CI: 0.23-0.77; P=0.005). Senior titles had higher scores and better execution than junior titles (OR=5.33, 95%CI: 2.35-12.07; P<0.001). When answering the question "gestational week at which premature infants could survive in your hospital", only 3.4% (11/328) answered 22 weeks, and 44.5% (146/328) answered 28 weeks, accounted for the highest proportion. The gestational week of surviving premature infants in tertiary hospitals was earlier than that in secondary hospitals (P<0.05). The gestational week of surviving premature infants answered by senior titles was earlier than that of junior titles (P<0.05). Conclusions: Obstetricians generally have a good implementation of the "Guideline", and their understanding of some recommended clauses in the guidelines needs to be improved. In the future, training of primary hospitals and physicians with junior titles should be strengthened.
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Affiliation(s)
- T S Li
- Department of Medical Statistics and Analysis, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Z Liu
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - H X Yang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Y L Hu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
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24
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Li XD, Li TS. [The brief history and current application of vaccines]. Zhonghua Nei Ke Za Zhi 2022; 61:588-593. [PMID: 35488615 DOI: 10.3760/cma.j.cn112138-20210521-00362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- X D Li
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Huang Z, Khalifa MO, Li P, Huang Y, Gu W, Li TS. Angiotensin receptor blocker alleviates liver fibrosis by altering the mechanotransduction properties of hepatic stellate cells. Am J Physiol Gastrointest Liver Physiol 2022; 322:G446-G456. [PMID: 35138187 DOI: 10.1152/ajpgi.00238.2021] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Angiotensin receptor blockers have been reported to be beneficial to liver fibrosis, but the relevant molecular and cellular mechanisms remain unclear. We herein investigated whether low-dose angiotensin receptor blocker alleviated liver fibrosis through mechanotransduction regulation. Hydrostatic pressure-induced liver fibrosis model was established in mice by ligating partially the inferior vena cava, and then randomly received a very low dose of losartan (0.5 mg/kg) or placebo treatment for 8 weeks. We found that losartan administration interfered the expression of several mechanotransductive molecules, and effectively alleviated liver fibrosis. Using a commercial device, we further confirmed that ex vivo loading of hepatic stellate cells to 50 mmHg hydrostatic pressure for 24 h significantly upregulated RhoA, ROCK, AT1R, and p-MLC2, which was effectively attenuated by adding 10 nM losartan in medium. Our in vivo and ex vivo experimental data suggest that low-dose angiotensin receptor blockers may alleviate hydrostatic pressure-induced liver fibrosis by altering the mechanotransduction properties of hepatic stellate cells.NEW & NOTEWORTHY Our ex vivo and in vivo experiments clearly indicated that low-dose losartan alleviated liver fibrosis, likely by modulating the mechanotransduction properties of HSCs. Uncovering the biomechanical signaling pathway of ARB treatment on liver fibrosis will be helpful to develop novel molecular targeting therapy for liver diseases.
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Affiliation(s)
- Zisheng Huang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mahmoud Osman Khalifa
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Peilin Li
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, Guangdong, China
| | - Yu Huang
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, Guangdong, China
| | - Weili Gu
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, Guangdong, China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Huang Z, Khalifa MO, Gu W, Li TS. Hydrostatic pressure induces pro-fibrotic properties in hepatic stellate cells via the RhoA/ROCK signaling pathway. FEBS Open Bio 2022; 12:1230-1240. [PMID: 35357779 PMCID: PMC9157409 DOI: 10.1002/2211-5463.13405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 02/28/2022] [Accepted: 03/29/2022] [Indexed: 11/11/2022] Open
Abstract
Elevated interstitial fluid hydrostatic pressure is commonly observed in diseased livers. We herein examined the hypothesis that hydrostatic pressure induces hepatic stellate cells to acquire pro-fibrotic properties under pathological conditions. Human hepatic stellate cells were exposed to 50 mmHg pressure for 24 hours. Although we observed few changes of cell growth and morphology, PCR array data on the expression of fibrosis-associated genes suggested the acquisition of pro-fibrotic properties. The exposure of hepatic stellate cells to 50 mmHg pressure for 24 hours also significantly enhanced the expression of RhoA, ROCK1, α-SMA, TGF-β1 , p-MLC and p-Smad2, and this was effectively attenuated by ROCK inhibitor Y-27632. Our ex vivo experimental data suggests that elevated interstitial fluid hydrostatic pressure under pathological conditions may promote liver fibrosis by inducing acquisition of pro-fibrotic properties of hepatic stellate cells through the RhoA/ROCK signaling pathway.
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Affiliation(s)
- Zisheng Huang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Mahmoud Osman Khalifa
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Weili Gu
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, 510180, China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
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Ohashi K, Li TS, Miura S, Hasegawa Y, Miura K. Biological Differences Between Ovarian Cancer-associated Fibroblasts and Contralateral Normal Ovary-derived Mesenchymal Stem Cells. Anticancer Res 2022; 42:1729-1737. [PMID: 35346991 DOI: 10.21873/anticanres.15649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/06/2022] [Revised: 02/26/2022] [Accepted: 03/01/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM The aim of this study was to clarify the biological differences between ovarian cancer-associated fibroblasts (OCa-CAFs) and normal ovary-derived mesenchymal stem cells (NO-MSCs). MATERIALS AND METHODS Surgically resected ovarian cancer and contralateral normal ovarian tissue samples were cut into small pieces for culture as "explants". The number of outgrown cells, their proliferative kinetics, and expression levels of cell surface markers of CAFs, as well as three miRNAs in OCa-CAFs and NO-MSCs were compared directly. Differentially expressed genes between both groups were also investigated. RESULTS Comparable numbers of outgrown cells were harvested from both groups. Significantly higher expression of α-smooth muscle actin and miR-142 was found in OCa-CAFs, which decreased significantly during ex vivo cell expansion. A total of 21 differentially expressed genes were identified between both groups. CONCLUSION OCa-CAFs showed different biological properties in direct comparison with NO-MSCs, which might play major roles in the pathogenesis of ovarian cancer.
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Affiliation(s)
- Kazuaki Ohashi
- Department of Obstetrics and Gynecology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Shoko Miura
- Department of Obstetrics and Gynecology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yuri Hasegawa
- Department of Obstetrics and Gynecology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kiyonori Miura
- Department of Obstetrics and Gynecology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan;
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Xu Y, Zhai D, Goto S, Zhang X, Jingu K, Li TS. Nicaraven mitigates radiation-induced lung injury by downregulating the NF-κB and TGF-β/Smad pathways to suppress the inflammatory response. J Radiat Res 2022; 63:158-165. [PMID: 34999842 PMCID: PMC8944328 DOI: 10.1093/jrr/rrab112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/16/2021] [Indexed: 06/14/2023]
Abstract
Radiation-induced lung injury (RILI) is commonly observed in patients receiving radiotherapy, and clinical prevention and treatment remain difficult. We investigated the effect and mechanism of nicaraven for mitigating RILI. C57BL/6 N mice (12-week-old) were treated daily with 6 Gy X-ray thoracic radiation for 5 days in sequences (cumulative dose of 30 Gy), and nicaraven (50 mg/kg) or placebo was injected intraperitoneally in 10 min after each radiation exposure. Mice were sacrificed and lung tissues were collected for experimental assessments at the next day (acute phase) or 100 days (chronic phase) after the last radiation exposure. Of the acute phase, immunohistochemical analysis of lung tissues showed that radiation significantly induced DNA damage of the lung cells, increased the number of Sca-1+ stem cells, and induced the recruitment of CD11c+, F4/80+ and CD206+ inflammatory cells. However, all these changes in the irradiated lungs were effectively mitigated by nicaraven administration. Western blot analysis showed that nicaraven administration effectively attenuated the radiation-induced upregulation of NF-κB, TGF-β, and pSmad2 in lungs. Of the chronic phase, nicaraven administration effectively attenuated the radiation-induced enhancement of α-SMA expression and collagen deposition in lungs. In conclusion we find that nicaraven can effectively mitigate RILI by downregulating NF-κB and TGF-β/pSmad2 pathways to suppress the inflammatory response in the irradiated lungs.
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Affiliation(s)
- Yong Xu
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Da Zhai
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Shinji Goto
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Xu Zhang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Keiichi Jingu
- Department of Radiation Oncology, Graduate School of Medicine, Tohoku University, Sendai 980-8574, Japan
| | - Tao-Sheng Li
- Corresponding author: Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan. Tel: +81-95-819-7099; Fax: +81-95-819-7100, E-mail:
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29
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Zhang X, Yassouf Y, Huang K, Xu Y, Huang ZS, Zhai D, Sekiya R, Liu KX, Li TS. Ex Vivo Hydrostatic Pressure Loading of Atrial Tissues Activates Profibrotic Transcription via TGF-β Signal Pathway. Int Heart J 2022; 63:367-374. [PMID: 35296614 DOI: 10.1536/ihj.21-481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Excessive mechanical stress causes fibrosis-related atrial arrhythmia. Herein, we tried to investigate the mechanism of atrial fibrogenesis in response to mechanical stress by ex vivo approach. We collected atrial tissues from mice and then cultured them as "explants" under atmospheric pressure (AP group) or 50 mmHg hydrostatic pressure loading (HP group) conditions. Pathway-specific PCR array analysis on the expression of fibrosis-related genes indicated that the loading of atrial tissues to 50 mmHg for 24 hours extensively upregulated a series of profibrotic genes. qRT-PCR data also showed that loading atrial tissues to 50 mmHg enhanced Rhoa, Rock2, and Thbs1 expression at different time points. Interestingly, the enhanced expression of Thbs1 at 1 hour declined at 6-24 hours and then increased again at 72 hours. In contrast, an enhanced expression of Tgfb1 was observed at 72 hours. In contrast, daily loading to 50 mmHg for 3 hours significantly accelerated the outgrowth of mesenchymal stem-like stromal cells from atrial tissues; however, we did not observe significant phenotypic changes in these outgrowing cells. Our ex vivo experimental data clearly show the induction of profibrotic transcription of atrial tissues by HP loading, which confirms the common pathological feature of atrial fibrosis following pressure overload.
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Affiliation(s)
- Xu Zhang
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences.,Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University
| | - Yousuf Yassouf
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences.,Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University
| | - Kai Huang
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences.,Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University
| | - Yong Xu
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences.,Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University
| | - Zi-Sheng Huang
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences.,Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University
| | - Da Zhai
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences.,Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University
| | - Reiko Sekiya
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences.,Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University
| | - Ke-Xiang Liu
- Department of Cardiovascular Surgery, The Second Hospital of Jilin University
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences.,Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University
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30
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Yassouf MY, Zhang X, Huang Z, Zhai D, Sekiya R, Kawabata T, Li TS. Biphasic effect of mechanical stress on lymphocyte activation. J Cell Physiol 2022; 237:1521-1531. [PMID: 34724217 DOI: 10.1002/jcp.30623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/19/2021] [Accepted: 10/22/2021] [Indexed: 01/08/2023]
Abstract
Mechanical forces can modulate the immune response, mostly described as promoting the activation of immune cells, but the role and mechanism of pathological levels of mechanical stress in lymphocyte activation have not been focused on before. By an ex vivo experimental approach, we observed that mechanical stressing of murine spleen lymphocytes with 50 mmHg for 3 h induced the nuclear localization of NFAT1, increased C-Jun, and increased the expression of early activation marker CD69 in resting CD8+ cells. Interestingly, 50 mmHg mechanical stressing induced the nuclear localization of NFAT1; but conversely decreased C-Jun and inhibited the expression of CD69 in lymphocytes under lipopolysaccharide or phorbol 12-myristate 13-acetate/ionomycin stimulation. Additionally, we observed similar changes trends when comparing RNA-seq data of hypertensive and normotensive COVID-19 patients. Our results indicate a biphasic effect of mechanical stress on lymphocyte activation, which provides insight into the variety of immune responses in pathologies involving elevated mechanical stress.
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Affiliation(s)
- Mhd Yousuf Yassouf
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Xu Zhang
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Zisheng Huang
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Da Zhai
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Reiko Sekiya
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Tsuyoshi Kawabata
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
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31
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Zhang S, Sharaf Eldin HE, Gu WL, Li TS. Laminin alpha-3 and thrombospondin-1 differently regulate the survival and differentiation of hepatocytes and hepatic stem cells from neonatal mice. Am J Transl Res 2021; 13:12684-12693. [PMID: 34956483 PMCID: PMC8661240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 03/31/2021] [Indexed: 06/14/2023]
Abstract
The aim of this study was to search and identify the extracellular matrix/adhesion molecules potentially regulating liver regeneration. By using pathway-focused PCR array, we investigated the dynamic changes in the expression of extracellular matrix and adhesion molecules in normal livers or cholestatic livers following partial hepatectomy in adult mice. To confirm the data from PCR array, we further evaluated how laminin alpha-3 and thrombospondin-1 mediate the survival and differentiation of matured hepatocytes and immature hepatic stem cells by using primarily isolated liver cells from neonatal mice. According to the different changes in the expression of extracellular matrix and adhesion molecules between normal livers and cholestatic livers, we could find a number of potential molecules involved in liver regeneration. Our in vitro evaluations indicated that laminin alpha-3 significantly increased the number of liver cells (P<0.01 vs. Control) but decreased the proportion of claudin-3-positive hepatic stem cells (P<0.05 vs. Control). In contrast, thrombospondin-1 significantly reduced cell apoptosis (P<0.05 vs. Control) and maintained the proportion of claudin-3-positive hepatic stem cells. Otherwise, the combination of laminin alpha-3 and thrombospondin-1 increased the proliferation of liver cells. Based on our data, laminin alpha-3 and trombospondin-1 differently regulate the survival and differentiation of hepatocytes and hepatic stem cells, but relevant mechanisms are required to be elucidated by further study.
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Affiliation(s)
- Shuai Zhang
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People’s HospitalGuangzhou 510180, China
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Heba E Sharaf Eldin
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University1-12-4 Sakamoto, Nagasaki 852-8523, Japan
- Department of Histology and Cell Biology, Faculty of Medicine, Tanta UniversityEgypt
| | - Wei-Li Gu
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People’s HospitalGuangzhou 510180, China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University1-12-4 Sakamoto, Nagasaki 852-8523, Japan
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32
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Abdelghany L, Zhang X, Kawabata T, Goto S, El-Mahdy N, Jingu K, Li TS. Nicaraven prevents the fast growth of inflamed tumors by an anti-inflammatory mechanism. Med Oncol 2021; 39:7. [PMID: 34761342 DOI: 10.1007/s12032-021-01602-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 09/13/2021] [Accepted: 10/21/2021] [Indexed: 11/25/2022]
Abstract
Inflammatory microenvironment is known to accelerate the progression of malignant tumors. We investigated the possible anti-inflammatory effect of nicaraven on slowing tumor growth. Tumor-bearing mice randomly received nicaraven injection (50 mg/kg daily, i.p, n = 8) or placebo treatment (n = 8) for 10 days, and then sacrificed for evaluations. Nicaraven administration effectively inhibited the fast growth of tumor, as a large tumor (> 1.0 g) developed finally in three of the eight mice received placebo treatment. Cytokines/chemokines array indicated that nicaraven reduced the levels of CXCL10 and SDF-1 in the tumor as well as the levels of IL-2 and MIP-2 in serum. Immunofluorescence staining showed that nicaraven significantly reduced the recruitment of macrophages and neutrophils in the tumor. Interestingly, western blot indicated that the expression of CD86, CD206, and NIMP-R14 was especially enhanced in the three large-size tumors, suggesting the potential role of nicaraven in preventing the hyper-inflammatory tumor microenvironment. Moreover, the expression of PARP-1 was downregulated, but the expression of phospho-p38 MAPK, phospho-MKK-3/6, and phospho-MSK-1 was upregulated in the large-size tumors, suggesting the involvement of p38 MAPK pathway in the anti-inflammatory effect of nicaraven. Taken together, our study suggests that nicaraven may effectively prevent the fast growth of inflamed tumors by an anti-inflammatory mechanism.
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Affiliation(s)
- Lina Abdelghany
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Xu Zhang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Tsuyoshi Kawabata
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Shinji Goto
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Nageh El-Mahdy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Keiichi Jingu
- Department of Radiation Oncology, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan. .,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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Li Y, Luo NC, Zhang X, Hara T, Inadomi C, Li TS. Prolonged oxygen exposure causes the mobilization and functional damage of stem or progenitor cells and exacerbates cardiac ischemia or reperfusion injury in healthy mice. J Cell Physiol 2021; 236:6657-6665. [PMID: 33554327 DOI: 10.1002/jcp.30317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/31/2020] [Accepted: 01/27/2021] [Indexed: 11/09/2022]
Abstract
Oxygen is often administered to patients and occasionally to healthy individuals as well; however, the cellular toxicity of oxygen, especially following prolonged exposure, is widely known. To evaluate the potential effect of oxygen exposure on circulating stem/progenitor cells and cardiac ischemia/reperfusion (I/R) injury, we exposed healthy adult mice to 100% oxygen for 20 or 60 min. We then examined the c-kit-positive stem/progenitor cells and colony-forming cells and measured the cytokine/chemokine levels in peripheral blood. We also induced cardiac I/R injury in mice at 3 h after 60 min of oxygen exposure and examined the recruitment of inflammatory cells and the fibrotic area in the heart. The proportion of c-kit-positive stem/progenitor cells significantly increased in peripheral blood at 3 and 24 h after oxygen exposure for either 20 or 60 min (p < .01 vs. control). However, the abundance of colony-forming cells in peripheral blood conversely decreased at 3 and 24 h after oxygen exposure for only 60 min (p < .05 vs. control). Oxygen exposure for either 20 or 60 min resulted in significantly decreased plasma vascular endothelial growth factor levels at 3 h, whereas oxygen exposure for only 60 min reduced plasma insulin-like growth factor 1 levels at 24 h (p < .05 vs. control). Protein array indicated the increase in the levels of some cytokines/chemokines, such as CXCL6 (GCP-2) at 24 h after 60 min of oxygen exposure. Moreover, oxygen exposure for 60 min enhanced the recruitment of Ly6g- and CD11c-positive inflammatory cells at 3 days (p < .05 vs. control) and increased the fibrotic area at 14 days in the heart after I/R injury (p < .05 vs. control). Prolonged oxygen exposure induced the mobilization and functional impairment of stem/progenitor cells and likely enhanced inflammatory responses to exacerbate cardiac I/R injury in healthy mice.
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Affiliation(s)
- Yu Li
- School of Medicine, Nanchang University, Nanchang, Jiangxi, China
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Na-Chuan Luo
- School of Medicine, Nanchang University, Nanchang, Jiangxi, China
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Xu Zhang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Tetsuya Hara
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Chiaki Inadomi
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
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34
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Zhai D, Xu Y, Abdelghany L, Zhang X, Liang J, Zhang S, Guo C, Li TS. Hydrostatic pressure stabilizes HIF‑1α expression in cancer cells to protect against oxidative damage during metastasis. Oncol Rep 2021; 46:211. [PMID: 34368876 DOI: 10.3892/or.2021.8162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/06/2020] [Accepted: 04/23/2021] [Indexed: 11/05/2022] Open
Abstract
The tissue microenvironment is known to play a pivotal role in cancer metastasis. Interstitial fluid hydrostatic pressure generally increases along with the rapid growth of malignant tumors. The aim of the present study was to investigate the role and relevant mechanism of elevated hydrostatic pressure in promoting the metastasis of cancer cells. Using a commercial device, Lewis lung cancer (LLC) cells were exposed to 50 mmHg hydrostatic pressure (HP) for 24 h. The survival time and morphology of the cells did not notably change; however, the results from a PCR array revealed the upregulation of numerous metastasis‑promoting genes (Hgf, Cdh11 and Ephb2) and the downregulation of metastasis suppressing genes (Kiss1, Syk and Htatip2). In addition, compared with that in the control, the cells which had undergone exposure to 50 mmHg HP showed significantly higher protein expression level of HIF‑1α and the antioxidant enzymes, SOD1 and SOD2, as well as improved tolerance to oxidative stress (P<0.05 vs. control). Following an intravenous injection of the LLC cells into healthy mice, to induce lung metastasis, it was found that the exposure of the LLC cells to 50 mmHg HP for 24 h, prior to injection into the mice, resulted in higher cell survival/retention in the lungs 24 h later and also resulted in more metastatic tumor lesions 4 weeks later (P<0.05 vs. control). Further investigation is required to confirm the molecular mechanism; however, the results from the present study suggested that elevated interstitial fluid HP in malignant tumors may promote the metastasis of cancer cells by stabilizing HIF‑1α expression to defend against oxidative damage.
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Affiliation(s)
- Da Zhai
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852‑8523, Japan
| | - Yong Xu
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852‑8523, Japan
| | - Lina Abdelghany
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852‑8523, Japan
| | - Xu Zhang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852‑8523, Japan
| | - Jingyan Liang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu 225000, P.R. China
| | - Shuohua Zhang
- Department of General Surgery, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi 330000, P.R. China
| | - Changying Guo
- Department of Thoracic Surgery, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330000, P.R. China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852‑8523, Japan
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35
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Khalifa MO, Abd-Elkareem M, Gaber W, Li TS, Saleh AM. Developmental morphological analyses on the preglottal salivary gland in Japanese quails (Coturnix japonica). Microsc Res Tech 2021; 85:156-168. [PMID: 34343385 DOI: 10.1002/jemt.23892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/20/2021] [Accepted: 07/17/2021] [Indexed: 11/12/2022]
Abstract
To understand the development of the mucous preglottal salivary gland in Coturnix japonica (Japanese quail), morphological and histochemical studies were performed on 20 healthy Japanese quail embryos (aging from 10th to 17th incubation days) and 25 healthy quail chicks (aging from 0th to 60th days). The primordia of preglottal salivary gland were observed as an epithelial bud at the early embryonic stage, which then elongated and differentiated into secretory units by the end of this stage. In Japanese quails, the preglottal salivary gland was a mucous polystomatic tubuloalveolar unpaired gland composed of two lateral portions and a middle one embedded into the submucosa of the lingual root. The gland openings accompanied taste pore (8.17 μm) of taste buds associated salivary glands type; some skeletal muscle fibers embedded among secretory lobules extended from muscle cricohyoideus at 14th day-old quail chick. Also, both herbts corpuscles and secretory motor plexus could be detected among secretory lobules. Based on our investigations, the development of the preglottal salivary gland could clearly be distinguished in the embryonic stage into pre bud and bud stages at 10th day old, cord and branching stages ended by cavitation at 11th day old, canalization stage at 13th day old, lobulation and secretory stages by the 17th day old. The secretory materials showed different histochemical reactions ended with highly alcinophilic mucous indicated highly sialomucin (acidic) content. Myoepithelial cells could be demonstrated at a 17-day old quail embryo and thereafter surrounded the secretory endpieces of the preglottal salivary gland.
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Affiliation(s)
- Mahmoud Osman Khalifa
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mahmoud Abd-Elkareem
- Department of Anatomy, Histology, and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Wafaa Gaber
- Department of Anatomy, Histology, and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Abdelmohaimen Mostafa Saleh
- Department of Anatomy, Histology, and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
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36
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Ma HM, Liu Y, Ge Y, Huo Z, Ma XJ, Li TS. [Lobular panniculitis in a patient with Lyme borreliosis]. Zhonghua Nei Ke Za Zhi 2021; 60:764-767. [PMID: 34304455 DOI: 10.3760/cma.j.cn112138-20201115-00940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H M Ma
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Huo
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X J Ma
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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37
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Luo L, Yan C, Fuchi N, Kodama Y, Zhang X, Shinji G, Miura K, Sasaki H, Li TS. Mesenchymal stem cell-derived extracellular vesicles as probable triggers of radiation-induced heart disease. Stem Cell Res Ther 2021; 12:422. [PMID: 34294160 PMCID: PMC8296737 DOI: 10.1186/s13287-021-02504-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 07/08/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Radiation-induced heart disease has been reported, but the underlying mechanisms remain unclear. Mesenchymal stem cells (MSCs), also residing in the heart, are highly susceptible to radiation. We examined the hypothesis that the altered secretion of extracellular vesicles (EVs) from MSCs is the trigger of radiation-induced heart disease. METHODS By exposing human placental tissue-derived MSCs to 5 Gy γ-rays, we then isolated EVs from the culture medium 48 h later and evaluated the changes in quantity and quality of EVs from MSCs after radiation exposure. The biological effects of EVs from irradiated MSCs on HUVECs and H9c2 cells were also examined. RESULTS Although the amount and size distribution of EVs did not differ between the nonirradiated and irradiated MSCs, miRNA sequences indicated many upregulated or downregulated miRNAs in irradiated MSCs EVs. In vitro experiments using HUVEC and H9c2 cells showed that irradiated MSC-EVs decreased cell proliferation (P < 0.01), but increased cell apoptosis and DNA damage. Moreover, irradiated MSC-EVs impaired the HUVEC tube formation and induced calcium overload in H9c2 cells. CONCLUSIONS EVs released from irradiated MSCs show altered miRNA profiles and harmful effects on heart cells, which provides new insight into the mechanism of radiation-related heart disease risks.
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Affiliation(s)
- Lan Luo
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Medical Technology School of Xuzhou Medical University, Xuzhou Key Laboratory of Laboratory Diagnostics, Tongshan Road 209, Xuzhou, 221004, China
| | - Chen Yan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Naoki Fuchi
- Department of Obstetrics and Gynecology, Nagasaki University Hospital, Nagasaki, 852-8523, Japan
| | - Yukinobu Kodama
- Department of Pharmacy, Nagasaki University Hospital, Nagasaki, 852-8523, Japan
| | - Xu Zhang
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Goto Shinji
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Kiyonori Miura
- Department of Obstetrics and Gynecology, Nagasaki University Hospital, Nagasaki, 852-8523, Japan
| | - Hitoshi Sasaki
- Department of Pharmacy, Nagasaki University Hospital, Nagasaki, 852-8523, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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38
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Yang L, Deng J, Ma W, Qiao A, Xu S, Yu Y, Boriboun C, Kang X, Han D, Ernst P, Zhou L, Shi J, Zhang E, Li TS, Qiu H, Nakagawa S, Blackshaw S, Zhang J, Qin G. Ablation of lncRNA Miat attenuates pathological hypertrophy and heart failure. Am J Cancer Res 2021; 11:7995-8007. [PMID: 34335976 PMCID: PMC8315059 DOI: 10.7150/thno.50990] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 04/29/2021] [Indexed: 12/11/2022] Open
Abstract
Rationale: The conserved long non-coding RNA (lncRNA) myocardial infarction associate transcript (Miat) was identified for its multiple single-nucleotide polymorphisms that are strongly associated with susceptibility to MI, but its role in cardiovascular biology remains elusive. Here we investigated whether Miat regulates cardiac response to pathological hypertrophic stimuli. Methods: Both an angiotensin II (Ang II) infusion model and a transverse aortic constriction (TAC) model were used in adult WT and Miat-null knockout (Miat-KO) mice to induce pathological cardiac hypertrophy. Heart structure and function were evaluated by echocardiography and histological assessments. Gene expression in the heart was evaluated by RNA sequencing (RNA-seq), quantitative real-time RT-PCR (qRT-PCR), and Western blotting. Primary WT and Miat-KO mouse cardiomyocytes were isolated and used in Ca2+ transient and contractility measurements. Results: Continuous Ang II infusion for 4 weeks induced concentric hypertrophy in WT mice, but to a lesser extent in Miat-KO mice. Surgical TAC for 6 weeks resulted in decreased systolic function and heart failure in WT mice but not in Miat-KO mice. In both models, Miat-KO mice displayed reduced heart-weight to tibia-length ratio, cardiomyocyte cross-sectional area, cardiomyocyte apoptosis, and cardiac interstitial fibrosis and a better-preserved capillary density, as compared to WT mice. In addition, Ang II treatment led to significantly reduced mRNA and protein expression of the Ca2+ cycling genes Sarcoplasmic/endoplasmic reticulum Ca2+ ATPase 2a (SERCA2a) and ryanodine receptor 2 (RyR2) and a dramatic increase in global RNA splicing events in the left ventricle (LV) of WT mice, and these changes were largely blunted in Miat-KO mice. Consistently, cardiomyocytes isolated from Miat-KO mice demonstrated more efficient Ca2+ cycling and greater contractility. Conclusions: Ablation of Miat attenuates pathological hypertrophy and heart failure, in part, by enhancing cardiomyocyte contractility.
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Liu H, Li TS, Yang XL, Fan HW, Zhou BT, Ge Y. [Diagnosis and treatment of a patient with fever, rash, and lymphadenopathy]. Zhonghua Nei Ke Za Zhi 2021; 60:669-670. [PMID: 34619846 DOI: 10.3760/cma.j.cn112138-20200828-00778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- H Liu
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - T S Li
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - X L Yang
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - H W Fan
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - B T Zhou
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - Y Ge
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
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40
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Dong XB, Zhang T, Huo Z, Wang Q, Ge Y, Li TS. [The 485th case: fever of undetermined origin and hypoxemia]. Zhonghua Nei Ke Za Zhi 2021; 60:279-283. [PMID: 33663183 DOI: 10.3760/cma.j.cn112138-20200313-00235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 49-year-old male was admitted to Peking Union Medical College Hospital presented with fever for more than half a year. The patient was diagnosed as Sjogren's syndrome at local hospital. After oral prednisone 60 mg per day was given, the fever alleviated, but recurred after prednisone tapered to 40 mg/d. Both blood culture and stool culture were positive for Salmonella enteritidis. Antibiotics including ceftazidime, ceftriaxone, cilastatin-imipenem were sequentially administrated for 4 weeks, yet not effective. Although there were not respiratory symptoms or certain abnormalities on high-resolution chest CT, arterial blood gas indicated hypoxemia. Serum lactate dehydrogenase and β2 micro-globulin were elevated, and the lung function test demonstrated significant impairment of diffusion function. Positron emission tomography-computed tomography (PET/CT)scan suggested that high fluorodeoxyglucose uptake was diffusely seen in both lungs. The patient was finally diagnosed as pulmonary intravascular large B-cell lymphoma (IVLBCL) by transbronchial lung biopsy. This case aims to emphasize the differentiation diagnoses of pulmonary intravascular lymphoma from common situations.
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Affiliation(s)
- X B Dong
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T Zhang
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Huo
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Q Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Nadler EO, Drlica-Wagner A, Bechtol K, Mau S, Wechsler RH, Gluscevic V, Boddy K, Pace AB, Li TS, McNanna M, Riley AH, García-Bellido J, Mao YY, Green G, Burke DL, Peter A, Jain B, Abbott TMC, Aguena M, Allam S, Annis J, Avila S, Brooks D, Carrasco Kind M, Carretero J, Costanzi M, da Costa LN, De Vicente J, Desai S, Diehl HT, Doel P, Everett S, Evrard AE, Flaugher B, Frieman J, Gerdes DW, Gruen D, Gruendl RA, Gschwend J, Gutierrez G, Hinton SR, Honscheid K, Huterer D, James DJ, Krause E, Kuehn K, Kuropatkin N, Lahav O, Maia MAG, Marshall JL, Menanteau F, Miquel R, Palmese A, Paz-Chinchón F, Plazas AA, Romer AK, Sanchez E, Scarpine V, Serrano S, Sevilla-Noarbe I, Smith M, Soares-Santos M, Suchyta E, Swanson MEC, Tarle G, Tucker DL, Walker AR, Wester W. Constraints on Dark Matter Properties from Observations of Milky Way Satellite Galaxies. Phys Rev Lett 2021; 126:091101. [PMID: 33750144 DOI: 10.1103/physrevlett.126.091101] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/12/2020] [Accepted: 01/27/2021] [Indexed: 06/12/2023]
Abstract
We perform a comprehensive study of Milky Way (MW) satellite galaxies to constrain the fundamental properties of dark matter (DM). This analysis fully incorporates inhomogeneities in the spatial distribution and detectability of MW satellites and marginalizes over uncertainties in the mapping between galaxies and DM halos, the properties of the MW system, and the disruption of subhalos by the MW disk. Our results are consistent with the cold, collisionless DM paradigm and yield the strongest cosmological constraints to date on particle models of warm, interacting, and fuzzy dark matter. At 95% confidence, we report limits on (i) the mass of thermal relic warm DM, m_{WDM}>6.5 keV (free-streaming length, λ_{fs}≲10h^{-1} kpc), (ii) the velocity-independent DM-proton scattering cross section, σ_{0}<8.8×10^{-29} cm^{2} for a 100 MeV DM particle mass [DM-proton coupling, c_{p}≲(0.3 GeV)^{-2}], and (iii) the mass of fuzzy DM, m_{ϕ}>2.9×10^{-21} eV (de Broglie wavelength, λ_{dB}≲0.5 kpc). These constraints are complementary to other observational and laboratory constraints on DM properties.
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Affiliation(s)
- E O Nadler
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA
- Kavli Institute for Particle Astrophysics and Cosmology, P.O. Box 2450, Stanford University, Stanford, California 94305, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - A Drlica-Wagner
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
- Department of Astronomy and Astrophysics, University of Chicago, Chicago, Illinois 60637, USA
| | - K Bechtol
- Physics Department, 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706-1390, USA
| | - S Mau
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA
- Kavli Institute for Particle Astrophysics and Cosmology, P.O. Box 2450, Stanford University, Stanford, California 94305, USA
| | - R H Wechsler
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA
- Kavli Institute for Particle Astrophysics and Cosmology, P.O. Box 2450, Stanford University, Stanford, California 94305, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - V Gluscevic
- University of Southern California, Department of Physics and Astronomy, 825 Bloom Walk ACB 439, Los Angeles, California 90089-0484, USA
| | - K Boddy
- Theory Group, Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA
| | - A B Pace
- Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15312, USA
| | - T S Li
- Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, New Jersey 08544, USA
- Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, California 91101, USA
| | - M McNanna
- Physics Department, 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706-1390, USA
| | - A H Riley
- George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - J García-Bellido
- Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, 28049 Madrid, Spain
| | - Y-Y Mao
- Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - G Green
- Max Planck Institute for Astronomy, Königstuhl 17 D-69117, Heidelberg, Germany
| | - D L Burke
- Kavli Institute for Particle Astrophysics and Cosmology, P.O. Box 2450, Stanford University, Stanford, California 94305, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - A Peter
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
- Department of Astronomy, The Ohio State University, Columbus, Ohio 43210, USA
- Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - B Jain
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - T M C Abbott
- Cerro Tololo Inter-American Observatory, NSF's National Optical-Infrared Astronomy Research Laboratory, Casilla 603, La Serena, Chile
| | - M Aguena
- Departamento de Física Matemática, Instituto de Física, Universidade de São Paulo, CP 66318, São Paulo, SP, 05314-970, Brazil
- Laboratório Interinstitucional de e-Astronomia-LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ-20921-400, Brazil
| | - S Allam
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
| | - J Annis
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
| | - S Avila
- Instituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, 28049 Madrid, Spain
| | - D Brooks
- Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, United Kingdom
| | - M Carrasco Kind
- Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, Illinois 61801, USA
- National Center for Supercomputing Applications, 1205 West Clark Street, Urbana, Illinois 61801, USA
| | - J Carretero
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra (Barcelona), Spain
| | - M Costanzi
- INAF-Osservatorio Astronomico di Trieste, via G.B. Tiepolo 11, I-34143 Trieste, Italy
- Institute for Fundamental Physics of the Universe, Via Beirut 2, 34014 Trieste, Italy
| | - L N da Costa
- Laboratório Interinstitucional de e-Astronomia-LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ-20921-400, Brazil
- Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ-20921-400, Brazil
| | - J De Vicente
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - S Desai
- Department of Physics, IIT Hyderabad, Kandi, Telangana 502285, India
| | - H T Diehl
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
| | - P Doel
- Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, United Kingdom
| | - S Everett
- Santa Cruz Institute for Particle Physics, Santa Cruz, California 95064, USA
| | - A E Evrard
- Department of Astronomy, University of Michigan, Ann Arbor, Michigan 48109, USA
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - B Flaugher
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
| | - J Frieman
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - D W Gerdes
- Department of Astronomy, University of Michigan, Ann Arbor, Michigan 48109, USA
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - D Gruen
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA
- Kavli Institute for Particle Astrophysics and Cosmology, P.O. Box 2450, Stanford University, Stanford, California 94305, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - R A Gruendl
- Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, Illinois 61801, USA
- National Center for Supercomputing Applications, 1205 West Clark Street, Urbana, Illinois 61801, USA
| | - J Gschwend
- Laboratório Interinstitucional de e-Astronomia-LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ-20921-400, Brazil
- Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ-20921-400, Brazil
| | - G Gutierrez
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
| | - S R Hinton
- School of Mathematics and Physics, University of Queensland, Brisbane, Queensland 4072, Australia
| | - K Honscheid
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
- Center for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - D Huterer
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - D J James
- Center for Astrophysics, Harvard and Smithsonian, 60 Garden Street, Cambridge, Massachusetts 02138, USA
| | - E Krause
- Department of Astronomy/Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721-0065, USA
| | - K Kuehn
- Australian Astronomical Optics, Macquarie University, North Ryde, New South Wales 2113, Australia
- Lowell Observatory, 1400 Mars Hill Road, Flagstaff, Arizona 86001, USA
| | - N Kuropatkin
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
| | - O Lahav
- Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, United Kingdom
| | - M A G Maia
- Laboratório Interinstitucional de e-Astronomia-LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ-20921-400, Brazil
- Observatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ-20921-400, Brazil
| | - J L Marshall
- George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA
| | - F Menanteau
- Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, Illinois 61801, USA
- National Center for Supercomputing Applications, 1205 West Clark Street, Urbana, Illinois 61801, USA
| | - R Miquel
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra (Barcelona), Spain
- Institució Catalana de Recerca i Estudis Avançats, E-08010 Barcelona, Spain
| | - A Palmese
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - F Paz-Chinchón
- National Center for Supercomputing Applications, 1205 West Clark Street, Urbana, Illinois 61801, USA
- Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, United Kingdom
| | - A A Plazas
- Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, New Jersey 08544, USA
| | - A K Romer
- Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton, BN1 9QH, United Kingdom
| | - E Sanchez
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - V Scarpine
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
| | - S Serrano
- Institut d'Estudis Espacials de Catalunya (IEEC), 08034 Barcelona, Spain
- Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, 08193 Barcelona, Spain
| | - I Sevilla-Noarbe
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - M Smith
- School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - M Soares-Santos
- Brandeis University, Physics Department, 415 South Street, Waltham, Massachusetts 02453, USA
| | - E Suchyta
- Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - M E C Swanson
- National Center for Supercomputing Applications, 1205 West Clark Street, Urbana, Illinois 61801, USA
| | - G Tarle
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - D L Tucker
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
| | - A R Walker
- Cerro Tololo Inter-American Observatory, NSF's National Optical-Infrared Astronomy Research Laboratory, Casilla 603, La Serena, Chile
| | - W Wester
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA
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Khalifa MO, Abd-elkareem M, Gaber W, Li T, Saleh AM. Developmental Morphological Analyses on the Preglottal Salivary Gland in Japanese Quails (Coturnix Japonica).. [DOI: 10.21203/rs.3.rs-255124/v1] [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: 09/01/2023]
Abstract
Abstract
To understand the development of the mucous preglottal salivary gland in Coturnix japonica (Japanese quail), morphological and histochemical studies were performed on 20 healthy Japanese quail embryos (aging from 10 th to 17 th incubation days) and 25 healthy quail chicks (aging from 0 th to 60 th days). The primordia of preglottal salivary gland was observed as an epithelial bud at the early embryonic stage, which then elongated and differentiated into secretory units by the end of this stage. In Japanese quails, the preglottal salivary gland was a mucous polystomatic tubulo-alveolar unpaired gland composed of two lateral portions and a middle one embedded into submucosa of the lingual root. The gland openings accompanied taste pore (8.17 μm) of taste buds associated salivary glands type; some skeletal muscle fibers embedded among secretory lobules extended from muscle cricohyoideus at 14 th day old quail chick. Also, both herbts corpuscles and secretory motor plexus could be detected among secretory lobules. Based on our investigations, the development of preglottal salivary gland could clearly be distinguished in the embryonic stage into prebud and bud stages at 10 th day old, cord and branching stages ended by cavitation at 11 th day old, canalization stage at 13 th day old, lobulation and secretory stages by the 17 th day old. This mucous secretion showed different histochemical reactions ended with highly alcinophilic mucous indicated highly sialomucin (acidic) content. Myoepithelial cells could be demonstrated at 17-day old quail embryo and there after, surrounded the secretory endpieces of the preglottal salivary gland.
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Abdelghany L, El-Mahdy N, Kawabata T, Goto S, Li TS. Dipyridamole induces the phosphorylation of CREB to promote cancer cell proliferation. Oncol Lett 2021; 21:251. [PMID: 33664815 PMCID: PMC7882894 DOI: 10.3892/ol.2021.12512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 10/30/2020] [Indexed: 11/06/2022] Open
Abstract
Dipyridamole, a traditional anti-platelet drug, has been reported to inhibit the proliferation of cancer cells. The present study aimed to investigate the possibility of dipyridamole as an adjuvant of chemotherapy by enhancing the cytotoxicity of an anti-cancer drug. The cytotoxicity of colorectal cancer cells (HCT-8), CD133+/CD44+ stem-like subpopulation of HCT-8 cells and lymphoma cells (U937) to dipyridamole and/or doxorubicin was evaluated using MTT proliferation and colony forming assays. The expression levels of phosphorylated cAMP-regulatory element-binding protein (pCREB) and poly(ADP-ribose) polymerase-1 (PARP-1) in cells were analyzed via western blotting and immunofluorescence. The present study reported controversial data regarding the anti-cancer effect of dipyridamole. Dipyridamole increased, rather than inhibited, the proliferation of HCT-8 and U937 cells in a dose-dependent manner. Furthermore, it was found that dipyridamole significantly increased the expression levels of pCREB and PARP-1. However, the combined usage of dipyridamole significantly enhanced the cytotoxicity of doxorubicin to HCT-8 cells at particular doses. Based on the current findings, dipyridamole likely induces the phosphorylation of CREB to promote the proliferation of cancer cells, but may enhance the cytotoxicity of anti-cancer drugs at particular doses.
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Affiliation(s)
- Lina Abdelghany
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt
| | - Nageh El-Mahdy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt
| | - Tsuyoshi Kawabata
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan
| | - Shinji Goto
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan
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Abstract
Compared to the age-matched men, the incidence of cardiovascular diseases is lower in premenopausal but higher in postmenopausal women, suggesting the cardio-protective role of estrogen in females. Although cardiac stem cells (CSCs) express estrogen receptors, yet the effects of estrogen on CSCs remain unclear. In this study, we investigated the potential role of estrogen in maintaining the quality of CSCs by in vivo and in vitro experiments. For the in vivo study, estrogen deficiency was induced by ovariectomy in 6-weeks-old C57BL/6 female mice, and then randomly given 17β-estradiol (E2) replacements at a low dose (0.01 mg/60 days) and high dose (0.18 mg/60 days), or vehicle treatment. All mice were killed 2 months after treatments, and heart tissues were collected for ex vivo expansion of CSCs. Compared to age-matched healthy controls, estrogen deficiency slightly decreased the yield of CSCs with significantly lower telomerase activity and more DNA damage. Interestingly, E2 replacements at low and high doses significantly increased the yield of CSCs and reversed the quality impairment of CSCs following estrogen deficiency. For the in vitro study, twice-passaged CSCs from the hearts of adult healthy female mice were cultured with the supplement of 0.01, 0.1, and 1 μM E2 in the medium for 3 days. We found that E2 supplement increased c-kit expression, increased proliferative activity, improved telomerase activity, and reduced DNA damage of CSCs in a dose-dependent manner. Our data suggested the potential role of estrogen in maintaining the quality of CSCs, providing new insight into the cardio-protective effects of estrogen.
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Affiliation(s)
- Al Shaimaa Hasan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
- Department of Medical Pharmacology, Qena Faculty of Medicine, South Valley University, Qena, Egypt
| | - Lan Luo
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
- School of Medical Technology, Xuzhou Medical University, Xuzhou City, Jiangsu Province, China
| | - Satoko Baba
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
- * E-mail:
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45
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Lin L, Li TS. Multidisciplinary collaborative integrated management of increasingly prominent HIV complications in the post-cART era. HIV Med 2020; 21:683-691. [PMID: 33369030 PMCID: PMC7839721 DOI: 10.1111/hiv.13022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2020] [Indexed: 11/27/2022]
Abstract
Objectives With the prolonged survival time of AIDS patients, complications of various systems and organs of HIV infection are increasingly prominent. These diseases have become the major factors influencing the quality of life and prognosis of HIV‐infected persons, and multidisciplinary cooperation treatment is urgently needed. Methods The Chinese HIV/AIDS Clinical Trial Network has conducted a series of multicentre clinical cohort studies over the past 16 years, in which studies related to people living with HIV systemic complications. Based on the results of previous studies, this review establishes the complications of Chinese people living with HIV after long‐term cART. Results HIV’s direct damage to human cells, chronic abnormal inflammatory activation after HIV infection, long‐term drug side effects caused by cART and persistent reservoirs cause systemic complications in people living with HIV. We summarised the clinical characteristics of the complications of HIV infection in China from the aspects of the liver, cardiovascular, the nervous system, the kidney, bone metabolism, blood glucose, and lipid metabolism. Conclusions The management of the complications of HIV infection is a major link in improving the survival treatment and prognosis of patients in the future. The joint participation of doctors from different departments of general hospitals in the management of comorbidities is the main theme for future improvement of quality of life and prognosis for people living with HIV.
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Affiliation(s)
- L Lin
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.,Center for AIDS Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Clinical Immunology Center, Chinese Academy of Medical Sciences, Beijing, China.,Tsinghua-Peking Center for Life Sciences, School of Medicine, Tsinghua University, Beijing, China
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Lin H, Wu X, Yang Y, Wang Z, Huang W, Wang LF, Liu QW, Guan XH, Deng KY, Li TS, Qian Y, Xin HB. Nicaraven inhibits TNFα-induced endothelial activation and inflammation through suppression of NF-κB signaling pathway. Can J Physiol Pharmacol 2020; 99:803-811. [PMID: 33356884 DOI: 10.1139/cjpp-2020-0558] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 12/13/2022]
Abstract
Inflammation-induced activation and dysfunction of endothelial cells play an important role in the pathology of multiple vascular diseases. Nicaraven, a potent hydroxyl radical scavenger, has recently been found to have anti-inflammatory roles; however, the mechanism of its action is not fully understood. Here we investigated the effects of Nicaraven on tumor necrosis factor α (TNFα) - induced inflammatory response in human umbilical vein endothelial cells and we explore the underlying mechanisms related to the nuclear factor-κB (NF-κB) signaling pathway. Our results showed that Nicaraven significantly reduced the reactive oxygen species production after TNFα stimulation. Nicaraven suppressed TNFα-induced mRNA expression of multiple adhesion molecules and pro-inflammatory cytokines, including vascular cell adhesion molecule 1 (VCAM-1), intercellular adhesion molecule 1 (ICAM-1), E-selectin, MCP-1, TNFα, interleukin-1β (IL-1β), IL-6, and IL-8. In addition, Nicaraven inhibited monocyte adhesion and reduced the protein levels of VCAM-1 and ICAM-1. Mechanistically, Nicaraven prevented TNFα-induced activation of NF-κB signaling pathway by suppressing the phosphorylation of NF-κB p65, IκBα, and IκB kinase (IKK)α/β, stabilizing IκBα, and inhibiting the translocation of p65 from cytosol to nucleus. Finally, we showed that Nicaraven improved the functions of endothelial cells, seen as the upregulation of endothelial nitric oxide synthase and increased nitric oxide levels. Our findings indicated that Nicaraven effectively inhibits TNFα-induced endothelial activation and inflammatory response at least partly through inhibiting NF-κB signaling pathway.
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Affiliation(s)
- Hongru Lin
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Xuehan Wu
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Yaqin Yang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Ziwei Wang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Weilu Huang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Ling-Fang Wang
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Quan-Wen Liu
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Xiao-Hui Guan
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Ke-Yu Deng
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Yisong Qian
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
| | - Hong-Bo Xin
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang 330031, China
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Cao W, Li TS. [The clinical features and treatment strategy of coronavirus disease 2019: reflections from Wuhan frontline]. Zhonghua Nei Ke Za Zhi 2020; 59:577-579. [PMID: 34865375 DOI: 10.3760/cma.j.cn112138-20200519-00493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- W Cao
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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48
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Tian XL, Peng M, Wang HP, Cai BQ, Xu WB, Zhu YJ, Li TS, Zhu HD, Song L, Wang MZ, Zhang L, Shi JH. [The differential diagnosis for novel coronavirus pneumonia and similar lung diseases in general hospitals]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:401-408. [PMID: 32153167 DOI: 10.3760/cma.j.cn112147-20200221-00136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Novel coronavirus pneumonia was a novel coronavirus infection that has dominated pulmonary infection since December 2019. The main manifestations were fever, dry cough, shortness of breath, normal or leukopenia in peripheral blood and changes in chest CT and in severe cases, multiple organ failure might occur. The National Health Commission, PRC has revised the consensus on diagnosis and treatment seven times in a short period of time, indicating the growing understanding of the disease. Patients with novel coronavirus pneumonia usually had history of travelling or living in the epidemic area including Wuhan within 14 days before onset, or have been exposed to patients who had fever or respiratory symptoms from the epidemic area, or had clustering diseases. However, novel coronavirus pneumonia was becoming more and more blurred after vanishing epidemic. The diagnosis and differential diagnosis of novel coronavirus pneumonia were challenges not only because of large number of tourists increasing dramatically after the relieving of epidemic, but also patients with other diseases from different areas to search for medical care. In this article, the clinical and chest imaging features of the novel coronavirus pneumonia were reviewed and compared with other infections and non-infectious diffuse pulmonary diseases. We try to find the similarities and differences among them, and to identify clues to the diagnosis of novel coronavirus pneumonia, so as to ensure accurate diagnosis and treatment.
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Affiliation(s)
- X L Tian
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Peng
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H P Wang
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - B Q Cai
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W B Xu
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y J Zhu
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department Infection Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H D Zhu
- Department of Emergency, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Song
- Department of Radiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Z Wang
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Zhang
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J H Shi
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Zhang Y, Cao W, Xiao M, Li YJ, Yang Y, Zhao J, Zhou X, Jiang W, Zhao YQ, Zhang SY, Li TS. [Clinical and coagulation characteristics in 7 patients with critical COVID-2019 pneumonia and acro-ischemia]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:302-307. [PMID: 32447934 DOI: 10.3760/cma.j.issn.0253-2727.2020.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Objective: To investigate the clinical and coagulation characteristics in patients with critical Coronavirus disease 2019 (COVID-19) and acro-ischemia. Methods: The retrospective study included 7 critical COVID-19 patients with acro-ischemia in an intensive care unit (ICU) in Wuhan, from Feb 4 to Feb 15, 2020. The clinical and laboratory data before and during the ICU stay were analyzed. Results: The median age of 7 patients was 59 years and 4 of them were men. Three patients were associated with underlying comorbidities. Fever, cough, dyspnea and diarrhea were common clinical symptoms. All patients had acro-ischemia presentations including finger/toe cyanosis, skin bulla and dry gangrene. D-dimer, fibrinogen and fibrinogen degradation product (FDP) were significantly elevated in most patients. Prothrombin time was prolonged in 4 patients. D-dimer and FDP levels progressively elevated consistent with COVID-2019 exacerbation. Four patients were diagnosed with disseminated intravascular coagulation (DIC) . Low molecular weight heparin (LMWH) was administrated in 6 patients, which reduced D-dimer and FDP rather than improved clinical symptoms. Five patients died finally and the median time from acro-ischemia to death was 12 days. Conclusions: Coagulation parameters should be monitored closely in critical COVID-2019 patients. The timing and protocol of anticoagulation therapy are still under investigation based on more clinical data.
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Affiliation(s)
- Y Zhang
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Cao
- Department of Infection Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - M Xiao
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y J Li
- Department of General Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y Yang
- Department of orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J Zhao
- Department of Respiratory and Critical Care Medicine Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - X Zhou
- Department of Intensive Care Unit, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Jiang
- Department of Medical Intensive Care Unit, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y Q Zhao
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - S Y Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - T S Li
- Department of Infection Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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50
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Geng TR, Han Y, Qiu ZF, Du TK, Jiang W, Shi JH, Qin T, Fan HW, Li TS. [Characteristics and prognostic value of peripheral blood T lymphocyte subsets in patients with severe influenza]. Zhonghua Nei Ke Za Zhi 2020; 59:200-206. [PMID: 32146746 DOI: 10.3760/cma.j.issn.0578-1426.2020.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the characteristics and prognostic value of peripheral blood T lymphocyte subsets in patients with severe influenza. Methods: This was a single-center cross-sectional study in influenza patients admitted to Peking Union Medical College Hospital from August 2017 to April 2018. Peripheral blood lymphocyte subsets were detected by flow cytometry in both patients and 108 healthy controls. Influenza patients were divided into mild group and severe group. Severe patients were further classified into alive and fatal subgroups. Results: A total of 42 influenza patients were recruited in this study, including 24 severe cases (6 deaths). The remaining 18 cases were mild. The peripheral blood lymphocyte counts and lymphocyte subset counts (B, NK, CD4(+)T, CD8(+)T) in either mild patients[795 (571,1 007), 43 (23,144), 70 (47,135), 330 (256,457), 226 (148,366) cells/μl respectively] or severe patients[661 (474,1 151),92 (52,139), 54 (34,134), 373 (235,555), 180 (105,310) cells/μl respectively] were both significantly lower than those of healthy controls [1 963 (1 603,2 394),179 (119,239), 356 (231,496), 663 (531,824), 481 (341,693) cells/μl respectively]. Meanwhile, the T cells and CD8(+)T counts in fatal patients [370 (260,537) cells/μl and 87 (74,105) cells/μl] were significantly lower than those in severe and alive patients [722 (390,990) cells/μl and 222 (154,404) cells/μl]. CD8(+)HLA-DR/CD8(+)and CD8(+)CD38(+)/CD8(+)T cell activating subgroups in mild cases[(53.7±19.2)% and 74.8% (64.1%,83.7%) respectively] were significantly higher than those in severe cases[(38.5±21.7)% and 53.3% (45.3%,67.2%) respectively].Moreover,CD8(+)HLA-DR/CD8(+)count in severe and alive group was higher than that in fatal group [(46.1±19.1)% vs. (18.2±14.6)%, P<0.01]. Logistic regression analysis showed that CD8(+)T cell count (OR=0.952, 95%CI 0.910-0.997, P=0.035) and CD8(+)HLA-DR/CD8(+)T (OR=0.916, 95%CI 0.850-0.987, P=0.022) were both negatively correlated with mortality.Peripheral blood lymphocyte counts in mild cases rapidly decreased within 1 day after diagnosis, and returned to the basic level one week later. Conclusions: All peripheral blood lymphocyte subsets (T,B,NK) in patients with influenza are significantly reduced. These findings are consistent with the immunological characteristics of respiratory viral infections, in which peripheral lymphocytes (especially T cells) migrate to respiratory tract in the early stage and circulate to the peripheral blood after recovery. The activated CD8(+)T cell counts in peripheral blood are negatively correlated with the severity of disease, which could be considered as a prognostic indicator of severe influenza.
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Affiliation(s)
- T R Geng
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Han
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z F Qiu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T K Du
- Emergency Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W Jiang
- Medical Intensive Care Unit, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J H Shi
- Department of Respiration, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T Qin
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H W Fan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China;Clinical Immunology Center, Chinese Academy of Medical Sciences, Beijing 100730, China
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