1
|
Yang T, Li J, Zhang Y, Deng Z, Cui G, Yuan J, Sun J, Wu X, Hua D, Xiang S, Chen Z. Intracellular presence of Helicobacter pylori antigen and genes within gastric and vaginal Candida. PLoS One 2024; 19:e0298442. [PMID: 38329956 PMCID: PMC10852334 DOI: 10.1371/journal.pone.0298442] [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: 06/19/2023] [Accepted: 01/23/2024] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND Helicobacter pylori infections are generally acquired during childhood and affect half of the global population, but its transmission route remains unclear. It is reported that H. pylori can be internalized into Candida, but more evidence is needed for the internalization of H. pylori in human gastrointestinal Candida and vaginal Candida. METHODS Candida was isolated from vaginal discharge and gastric mucosa biopsies. We PCR-amplified and sequenced H. pylori-specific genes from Candida genomic DNA. Using optical and immunofluorescence microscopy, we identified and observed bacteria-like bodies (BLBs) in Candida isolates and subcultures. Intracellular H. pylori antigen were detected by immunofluorescence using Fluorescein isothiocyanate (FITC)-labeled anti-H. pylori IgG antibodies. Urease activity in H. pylori internalized by Candida was detected by inoculating with urea-based Sabouraud dextrose agar, which changed the agar color from yellow to pink, indicating urease activity. RESULTS A total of 59 vaginal Candida and two gastric Candida strains were isolated from vaginal discharge and gastric mucosa. Twenty-three isolates were positive for H. pylori 16S rDNA, 12 were positive for cagA and 21 were positive for ureA. The BLBs could be observed in Candida cells, which were positive for H. pylori 16S rDNA, and were viable determined by the LIVE/DEAD BacLight Bacterial Viability kit. Fluorescein isothiocyanate (FITC)-conjugated antibodies could be reacted specifically with H. pylori antigen inside Candida cells by immunofluorescence. Finally, H. pylori-positive Candida remained positive for H. pylori 16S rDNA even after ten subcultures. Urease activity of H. pylori internalized by Candida was positive. CONCLUSION In the form of BLBs, H. pylori can internalize into gastric Candida and even vaginal Candida, which might have great significance in its transmission and pathogenicity.
Collapse
Affiliation(s)
- Tingxiu Yang
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
- Department of Hospital Infection and Management, Guizhou Provincial People’s Hospital, Guiyang, China
- Key Laboratory of Endemic and Ethnic Diseases of Ministry of Education/Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, China
- Scientific Research Center, School of Basic Medical Science, Guizhou Medical University Guiyang, Guiyang, China
| | - Jia Li
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
- Department of Clinical Laboratory, Jinyang Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yuanyuan Zhang
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
- Department of Gastroenterology, People’s Hospital of Qiannan Prefecture, Guizhou, China
| | - Zhaohui Deng
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Guzhen Cui
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
- Key Laboratory of Endemic and Ethnic Diseases of Ministry of Education/Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, China
| | - Jun Yuan
- Key Laboratory of Endemic and Ethnic Diseases of Ministry of Education/Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, China
| | - Jianchao Sun
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Xiaojuan Wu
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
- Scientific Research Center, School of Basic Medical Science, Guizhou Medical University Guiyang, Guiyang, China
| | - Dengxiong Hua
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Song Xiang
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Zhenghong Chen
- Key Laboratory of Microbiology and Parasitology of Education Department of Guizhou, School of Basic Medical Science/Joint Laboratory of Helicobacter Pylori and Intestinal Microecology of Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
- Key Laboratory of Endemic and Ethnic Diseases of Ministry of Education/Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, China
- Scientific Research Center, School of Basic Medical Science, Guizhou Medical University Guiyang, Guiyang, China
| |
Collapse
|
2
|
Yang Z, Zhang P, Chen X, Hong Z, Gong J, Ou X, Wu Q, Li W, Wang X, Xie L, Zhang Z, Yu Z, Qin X, Tang J, Zhang H, Chen Q, Han S, Yang H. High-Confidentiality X-Ray Imaging Encryption Using Prolonged Imperceptible Radioluminescence Memory Scintillators. Adv Mater 2023; 35:e2309413. [PMID: 37950585 DOI: 10.1002/adma.202309413] [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] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/29/2023] [Indexed: 11/12/2023]
Abstract
X-ray imaging plays an increasingly crucial role in clinical radiography, industrial inspection, and military applications. However, current X-ray imaging technologies have difficulty in protecting against information leakage caused by brute force attacks via trial-and-error. Here high-confidentiality X-ray imaging encryption by fabricating ultralong radioluminescence memory films composed of lanthanide-activated nanoscintillators (NaLuF4 : Gd3+ or Ce3+ ) with imperceptible purely-ultraviolet (UV) emission is reported. Mechanistic investigations unveil that ultralong X-ray memory is attributed to the long-lived trapping of thermalized charge carriers within Frenkel defect states and subsequent slow release in the form of imperceptible radioluminescence. The encrypted X-ray imaging can be securely stored in the memory film for more than 7 days and optically decoded by perovskite nanocrystal. Importantly, this encryption strategy can protect X-ray imaging information against brute force trial-and-error attacks through the perception of lifetime change in the persistent radioluminescence. It is further demonstrated that the as-fabricated flexible memory film enables achieving of 3D X-ray imaging encryption of curved objects with a high spatial resolution of 20 lp/mm and excellent recyclability. This study provides valuable insights into the fundamental understanding of X-ray-to-UV conversion in nanocrystal lattices and opens up a new avenue toward the development of high-confidential 3D X-ray imaging encryption technologies.
Collapse
Affiliation(s)
- Zhijian Yang
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Peng Zhang
- Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Xiaofeng Chen
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Zhongzhu Hong
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Jianwei Gong
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Xiangyu Ou
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Qinxia Wu
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Weihong Li
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Xiaoze Wang
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Lili Xie
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Zhenzhen Zhang
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Zhiyang Yu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Xian Qin
- Strait Institute of Flexible Electronics (SIFE Future Technologies), Fujian Normal University, Fuzhou, Fujian, 350117, P. R. China
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), Wuhan, 430074, P. R. China
| | - Hongjie Zhang
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Qiushui Chen
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, P. R. China
| | - Sanyang Han
- Institute of Biopharmaceutical and Health Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Huanghao Yang
- New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, P. R. China
| |
Collapse
|
3
|
Zhong Q, Wang H, Yang J, Tu R, Li A, Zeng G, Zheng Q, Yu Liu Z, Shang‐Guan Z, Bo Huang X, Huang Q, Li Y, Zheng H, Lin G, Huang Z, Xu K, Qiu W, Jiang M, Zhao Y, Lin J, Huang Z, Huang J, Li P, Xie J, Zheng C, Chen Q, Huang C. Loss of ATOH1 in Pit Cell Drives Stemness and Progression of Gastric Adenocarcinoma by Activating AKT/mTOR Signaling through GAS1. Adv Sci (Weinh) 2023; 10:e2301977. [PMID: 37824217 PMCID: PMC10646280 DOI: 10.1002/advs.202301977] [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] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 08/19/2023] [Indexed: 10/14/2023]
Abstract
Gastric cancer stem cells (GCSCs) are self-renewing tumor cells that govern chemoresistance in gastric adenocarcinoma (GAC), whereas their regulatory mechanisms remain elusive. Here, the study aims to elucidate the role of ATOH1 in the maintenance of GCSCs. The preclinical model and GAC sample analysis indicate that ATOH1 deficiency is correlated with poor GAC prognosis and chemoresistance. ScRNA-seq reveals that ATOH1 is downregulated in the pit cells of GAC compared with those in paracarcinoma samples. Lineage tracing reveals that Atoh1 deletion strongly confers pit cell stemness. ATOH1 depletion significantly accelerates cancer stemness and chemoresistance in Tff1-CreERT2; Rosa26Tdtomato and Tff1-CreERT2; Apcfl/fl ; p53fl/fl (TcPP) mouse models and organoids. ATOH1 deficiency downregulates growth arrest-specific protein 1 (GAS1) by suppressing GAS1 promoter transcription. GAS1 forms a complex with RET, which inhibits Tyr1062 phosphorylation, and consequently activates the RET/AKT/mTOR signaling pathway by ATOH1 deficiency. Combining chemotherapy with drugs targeting AKT/mTOR signaling can overcome ATOH1 deficiency-induced chemoresistance. Moreover, it is confirmed that abnormal DNA hypermethylation induces ATOH1 deficiency. Taken together, the results demonstrate that ATOH1 loss promotes cancer stemness through the ATOH1/GAS1/RET/AKT/mTOR signaling pathway in GAC, thus providing a potential therapeutic strategy for AKT/mTOR inhibitors in GAC patients with ATOH1 deficiency.
Collapse
|
4
|
Liang W, Xu Y, Li X, Wang XX, Zhang HD, Yu M, Ramakrishna S, Long YZ. Transparent Polyurethane Nanofiber Air Filter for High-Efficiency PM2.5 Capture. Nanoscale Res Lett 2019; 14:361. [PMID: 31792730 PMCID: PMC6889091 DOI: 10.1186/s11671-019-3199-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/31/2019] [Indexed: 05/23/2023]
Abstract
Fine particulate matter (PM) has seriously affected human life, such as affecting human health, climate, and ecological environment. Recently, many researchers use electrospinning to prepare nanofiber air filters for effective removal of fine particle matter. However, electrospinning of the polymer fibers onto the window screen uniformly is only achieved in the laboratory, and the realization of industrialization is still very challenging. Here, we report an electrospinning method using a rotating bead spinneret for large-scale electrospinning of thermoplastic polyurethane (TPU) onto conductive mesh with high productivity of 1000 m2/day. By changing the concentration of TPU in the polymer solution, PM2.5 removal efficiency of nanofiber-based air filter can be up to 99.654% with good optical transparency of 60%, and the contact angle and the ventilation rate of the nanofiber-based air filter is 128.5° and 3480 mm/s, respectively. After 10 times of filtration, the removal efficiency is only reduced by 1.6%. This transparent air filter based on TPU nanofibers has excellent filtration efficiency and ventilation rate, which can effectively ensure indoor air quality of the residential buildings.
Collapse
Affiliation(s)
- Wen Liang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Yuan Xu
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Xiao Li
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Xiao-Xiong Wang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Hong-Di Zhang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Miao Yu
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
- Qingdao Junada Technology Co., Ltd, Qingdao International Academician Park, Qingdao, 266199, China
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Seeram Ramakrishna
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
- Center for Nanofibers & Nanotechnology, Faculty of Engineering, National University of Singapore, Singapore, Singapore
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China.
- Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China.
| |
Collapse
|