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Lee S, Arffman RK, Komsi EK, Lindgren O, Kemppainen J, Kask K, Saare M, Salumets A, Piltonen TT. Dynamic changes in AI-based analysis of endometrial cellular composition: Analysis of PCOS and RIF endometrium. J Pathol Inform 2024; 15:100364. [PMID: 38445292 PMCID: PMC10914580 DOI: 10.1016/j.jpi.2024.100364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 03/07/2024] Open
Abstract
Background The human endometrium undergoes a monthly cycle of tissue growth and degeneration. During the mid-secretory phase, the endometrium establishes an optimal niche for embryo implantation by regulating cellular composition (e.g., epithelial and stromal cells) and differentiation. Impaired endometrial development observed in conditions such as polycystic ovary syndrome (PCOS) and recurrent implantation failure (RIF) contributes to infertility. Surprisingly, despite the importance of the endometrial lining properly developing prior to pregnancy, precise measures of endometrial cellular composition in these two infertility-associated conditions are entirely lacking. Additionally, current methods for measuring the epithelial and stromal area have limitations, including intra- and inter-observer variability and efficiency. Methods We utilized a deep-learning artificial intelligence (AI) model, created on a cloud-based platform and developed in our previous study. The AI model underwent training to segment both areas populated by epithelial and stromal endometrial cells. During the training step, a total of 28.36 mm2 areas were annotated, comprising 2.56 mm2 of epithelium and 24.87 mm2 of stroma. Two experienced pathologists validated the performance of the AI model. 73 endometrial samples from healthy control women were included in the sample set to establish cycle phase-dependent dynamics of the endometrial epithelial-to-stroma ratio from the proliferative (PE) to secretory (SE) phases. In addition, 91 samples from PCOS cases, accounting for the presence or absence of ovulation and representing all menstrual cycle phases, and 29 samples from RIF patients on day 5 after progesterone administration in the hormone replacement treatment cycle were also included and analyzed in terms of cellular composition. Results Our AI model exhibited reliable and reproducible performance in delineating epithelial and stromal compartments, achieving an accuracy of 92.40% and 99.23%, respectively. Moreover, the performance of the AI model was comparable to the pathologists' assessment, with F1 scores exceeding 82% for the epithelium and >96% for the stroma. Next, we compared the endometrial epithelial-to-stromal ratio during the menstrual cycle in women with PCOS and in relation to endometrial receptivity status in RIF patients. The ovulatory PCOS endometrium exhibited epithelial cell proportions similar to those of control and healthy women's samples in every cycle phase, from the PE to the late SE, correlating with progesterone levels (control SE, r2 = 0.64, FDR < 0.001; PCOS SE, r2 = 0.52, FDR < 0.001). The mid-SE endometrium showed the highest epithelial percentage compared to both the early and late SE endometrium in both healthy women and PCOS patients. Anovulatory PCOS cases showed epithelial cellular fractions comparable to those of PCOS cases in the PE (Anovulatory, 14.54%; PCOS PE, 15.56%, p = 1.00). We did not observe significant differences in the epithelial-to-stroma ratio in the hormone-induced endometrium in RIF patients with different receptivity statuses. Conclusion The AI model rapidly and accurately identifies endometrial histology features by calculating areas occupied by epithelial and stromal cells. The AI model demonstrates changes in epithelial cellular proportions according to the menstrual cycle phase and reveals no changes in epithelial cellular proportions based on PCOS and RIF conditions. In conclusion, the AI model can potentially improve endometrial histology assessment by accelerating the analysis of the cellular composition of the tissue and by ensuring maximal objectivity for research and clinical purposes.
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Affiliation(s)
- Seungbaek Lee
- Department of Obstetrics and Gynaecology, Research Unit of Clinical Medicine, Medical Research Center, Oulu University Hospital, University of Oulu, Oulu 90220, Finland
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, Tartu 50406, Estonia
| | - Riikka K. Arffman
- Department of Obstetrics and Gynaecology, Research Unit of Clinical Medicine, Medical Research Center, Oulu University Hospital, University of Oulu, Oulu 90220, Finland
| | - Elina K. Komsi
- Department of Obstetrics and Gynaecology, Research Unit of Clinical Medicine, Medical Research Center, Oulu University Hospital, University of Oulu, Oulu 90220, Finland
| | - Outi Lindgren
- Department of Pathology, Oulu University Hospital, Cancer and Translational Medicine Research Unit, University of Oulu, Oulu 90220, Finland
| | - Janette Kemppainen
- Department of Pathology, Oulu University Hospital, Cancer and Translational Medicine Research Unit, University of Oulu, Oulu 90220, Finland
| | - Keiu Kask
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, Tartu 50406, Estonia
- Competence Centre on Health Technologies, Tartu 51014, Estonia
| | - Merli Saare
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, Tartu 50406, Estonia
- Competence Centre on Health Technologies, Tartu 51014, Estonia
| | - Andres Salumets
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, Tartu 50406, Estonia
- Competence Centre on Health Technologies, Tartu 51014, Estonia
- Division of Obstetrics and Gynaecology, Department of Clinical Science, Intervention and Technology, Karolinska Institute and Karolinska University Hospital, Stockholm 14152, Sweden
| | - Terhi T. Piltonen
- Department of Obstetrics and Gynaecology, Research Unit of Clinical Medicine, Medical Research Center, Oulu University Hospital, University of Oulu, Oulu 90220, Finland
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Li Q, Wang C, Gou J, Kitanovski S, Tang X, Cai Y, Zhang C, Zhang X, Zhang Z, Qiu Y, Zhao F, Lu M, He Y, Wang J, Lu H. Deciphering lung granulomas in HIV & TB co-infection: unveiling macrophages aggregation with IL6R/STAT3 activation. Emerg Microbes Infect 2024; 13:2366359. [PMID: 38855910 PMCID: PMC11188963 DOI: 10.1080/22221751.2024.2366359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Accepted: 06/05/2024] [Indexed: 06/11/2024]
Abstract
Tuberculosis (TB) remains a leading cause of mortality among individuals coinfected with HIV, characterized by progressive pulmonary inflammation. Despite TB's hallmark being focal granulomatous lung lesions, our understanding of the histopathological features and regulation of inflammation in HIV & TB coinfection remains incomplete. In this study, we aimed to elucidate these histopathological features through an immunohistochemistry analysis of HIV & TB co-infected and TB patients, revealing marked differences. Notably, HIV & TB granulomas exhibited aggregation of CD68 + macrophage (Mφ), while TB lesions predominantly featured aggregation of CD20+ B cells, highlighting distinct immune responses in coinfection. Spatial transcriptome profiling further elucidated CD68+ Mφ aggregation in HIV & TB, accompanied by activation of IL6 pathway, potentially exacerbating inflammation. Through multiplex immunostaining, we validated two granuloma types in HIV & TB versus three in TB, distinguished by cell architecture. Remarkably, in the two types of HIV & TB granulomas, CD68 + Mφ highly co-expressed IL6R/pSTAT3, contrasting TB granulomas' high IFNGRA/SOCS3 expression, indicating different signaling pathways at play. Thus, activation of IL6 pathway may intensify inflammation in HIV & TB-lungs, while SOCS3-enriched immune microenvironment suppresses IL6-induced over-inflammation in TB. These findings provide crucial insights into HIV & TB granuloma formation, shedding light on potential therapeutic targets, particularly for granulomatous pulmonary under HIV & TB co-infection. Our study emphasizes the importance of a comprehensive understanding of the immunopathogenesis of HIV & TB coinfection and suggests potential avenues for targeting IL6 signaling with SOCS3 activators or anti-IL6R agents to mitigate lung inflammation in HIV & TB coinfected individuals.
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MESH Headings
- Humans
- Coinfection/virology
- Coinfection/immunology
- Coinfection/microbiology
- HIV Infections/complications
- HIV Infections/immunology
- Macrophages/immunology
- STAT3 Transcription Factor/metabolism
- STAT3 Transcription Factor/genetics
- Granuloma/immunology
- Lung/pathology
- Lung/immunology
- Receptors, Interleukin-6/metabolism
- Receptors, Interleukin-6/genetics
- Suppressor of Cytokine Signaling 3 Protein/metabolism
- Suppressor of Cytokine Signaling 3 Protein/genetics
- Antigens, Differentiation, Myelomonocytic/metabolism
- Antigens, Differentiation, Myelomonocytic/genetics
- Antigens, CD/metabolism
- Antigens, CD/genetics
- Signal Transduction
- Tuberculosis, Pulmonary/immunology
- Tuberculosis, Pulmonary/complications
- Male
- Tuberculosis/immunology
- Tuberculosis/microbiology
- Tuberculosis/complications
- Female
- Adult
- Interleukin-6/metabolism
- Interleukin-6/genetics
- CD68 Molecule
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Affiliation(s)
- Qian Li
- National Clinical Research Center for Infectious Diseases, The Third People’s Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People’s Republic of China
| | - Cheng Wang
- National Clinical Research Center for Infectious Diseases, The Third People’s Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People’s Republic of China
| | - Jizhou Gou
- Department of Pathology, National Clinical Research Center for Infectious Diseases, Shenzhen Third People’s Hospital, Shenzhen, People’s Republic of China
| | - Simo Kitanovski
- Bioinformatics and Computational Biophysics, University of Duisburg-Essen, Essen, Germany
| | - XiangYi Tang
- National Clinical Research Center for Infectious Diseases, The Third People’s Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People’s Republic of China
| | - Yixuan Cai
- Clinical Research Center, The Fifth People’s Hospital of Wuxi, Jiangnan University, Wuxi, People’s Republic of China
| | - Chenxia Zhang
- Clinical Research Center, The Fifth People’s Hospital of Wuxi, Jiangnan University, Wuxi, People’s Republic of China
| | - Xiling Zhang
- National Clinical Research Center for Infectious Diseases, The Third People’s Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People’s Republic of China
| | - Zhenfeng Zhang
- School of Public Health and Emergency Management, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People’s Republic of China
| | - Yuanwang Qiu
- Clinical Research Center, The Fifth People’s Hospital of Wuxi, Jiangnan University, Wuxi, People’s Republic of China
| | - Fang Zhao
- National Clinical Research Center for Infectious Diseases, The Third People’s Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People’s Republic of China
| | - Mengji Lu
- Institute of Virology, Essen University Hospital, University of Duisburg-Essen, Essen, German
| | - Yun He
- National Clinical Research Center for Infectious Diseases, The Third People’s Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People’s Republic of China
| | - Jun Wang
- National Clinical Research Center for Infectious Diseases, The Third People’s Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People’s Republic of China
- Bioinformatics and Computational Biophysics, University of Duisburg-Essen, Essen, Germany
- Clinical Research Center, The Fifth People’s Hospital of Wuxi, Jiangnan University, Wuxi, People’s Republic of China
| | - Hongzhou Lu
- National Clinical Research Center for Infectious Diseases, The Third People’s Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, People’s Republic of China
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Aganja RP, Sivasankar C, Lee JH. AI-2 quorum sensing controlled delivery of cytolysin-A by tryptophan auxotrophic low-endotoxic Salmonella and its anticancer effects in CT26 mice with colon cancer. J Adv Res 2024; 61:83-100. [PMID: 37689243 DOI: 10.1016/j.jare.2023.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/16/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023] Open
Abstract
INTRODUCTION The limitations of conventional cancer therapies necessitate target-oriented, highly invasive, and safe treatment approaches. Hence, the intrinsic anti-tumor activity of Salmonella can offer better options to combat cancers. OBJECTIVES This study aims to utilize attenuated Salmonella and deliver cytolytic protein cytolysin A (ClyA) under quorum sensing (QS) signaling for precise localized expression in tumors but not in healthy organs. METHODS The therapeutic delivery strain was imposed with tryptophan auxotroph for selective colonization in tumors by trpA and trpE deletion, and lipid-A and O-antigen were altered by pagL and rfaL deletions using lambda red recombination method. The strain was transformed with the designed QS-controlled ClyA expression vector which was validated by western blot. The in vivo passaged therapeutic strain was used for treatment four times at a weekly interval, with a dose of 5 × 106 CFU/mouse for cancer therapy. RESULTS The attenuated strain induced minimal endotoxicity-related cytokines TNF-α, IL-1β, and IFN-γ and exhibited adequate colonization despite earlier exposure in mice. The QS-controlled ClyA expression was confirmed by western blot from bacterial cultures grown at different cell densities. The results demonstrated that the in vivo passaged strain preferentially colonized the tumor after vacating the spleen, liver, and lung, leaving no outward histological scars. The anti-cancer effect of the designed construct was evaluated in the murine CT26 colon cancer model. The expression of ClyA increased tumoricidal activity by 67 % compared to vector control. CONCLUSION Hence, the anti-tumor effect of the engineered Salmonella strain was improved by ClyA expression via QS activation after achieving the threshold bacterial cell density. Further, immunohistochemical staining of the tumor and other organs corroborated the QS-controlled tumor-specific expression of ClyA. Overall, the results imply that the developed anti-cancer Salmonella has low endotoxicity and QS-controlled expression of ClyA as beneficial safety elements and supports recurrent Salmonella inoculation by O-antigen deficiency.
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Affiliation(s)
- Ram Prasad Aganja
- Department of Veterinary Public Health, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, South Korea
| | - Chandran Sivasankar
- Department of Veterinary Public Health, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, South Korea
| | - John Hwa Lee
- Department of Veterinary Public Health, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, South Korea.
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Teng JLL, Tang Y, Wong SSY, Yeung ML, Cai JP, Chen C, Chan E, Fong JYH, Au-Yeung RKH, Xiong L, Lau TCK, Lau SKP, Woo PCY. Mycolyltransferase is important for biofilm formation and pathogenesis of Tsukamurella keratitis. Emerg Microbes Infect 2024:2373317. [PMID: 38934251 DOI: 10.1080/22221751.2024.2373317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
AbstractTsukamurella, a group of multi-drug resistant, Gram-positive, aerobic and partially acid-fast bacteria, are emerging causes of bacterial conjunctivitis and keratitis. However, the pathogenesis of Tsukamurella keratitis is largely unknown. To address this, we used New Zealand White rabbits to develop the first eye infection model and conducted in vitro tests to study the pathogenesis mechanisms of Tsukamurella. There is increasing evidence that biofilms play a significant role in ocular infections, leading us to hypothesize that biofilm formation is crucial for effective Tsukamurella infection. In order to look for potential candidate genes which are important in biofilm formation and Tsukamurella keratitis. We performed genome sequencing of two ocular isolates, T. pulmonis-PW1004 and T. tyrosinosolvens-PW899, to identify potential virulence factors. Through in vitro and in vivo studies, we characterized their biological roles in mediating Tsukamurella keratitis. Our findings confirmed that Tsukamurella is an ocular pathogen by fulfilling the Koch's postulates, and using genome sequence data, we identified tmytC, encoding a mycolyltransferase, as a crucial gene in biofilm formation and causing Tsukamurella keratitis in the rabbit model. This is the first report demonstrating the novel role of mycolyltransferase in causing ocular infections. Overall, our findings contribute to a better understanding of Tsukamurella pathogenesis and provide a potential target for treatment. Specific inhibitors targeting TmytC could serve as an effective treatment option for Tsukamurella infections.
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Affiliation(s)
- Jade Lee-Lee Teng
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Ying Tang
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, China
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Samson Sai-Yin Wong
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Man Lung Yeung
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
- State Key Laboratory of Emerging Infectious Diseases, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
- Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, China
- Carol Yu Centre for Infection, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park, Hong Kong Special Administrative Region, China
| | - Jian-Pao Cai
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Chen Chen
- Beijing Ditan Hospital, Capital Medical University, Beijing Key Laboratory of Emerging infectious Diseases, Beijing, China
| | - Elaine Chan
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, China
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Jordan Yik-Hei Fong
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, China
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | | | - Lifeng Xiong
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Terrence Chi-Kong Lau
- Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Susanna Kar-Pui Lau
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Patrick Chiu-Yat Woo
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
- Doctoral Program in Translational Medicine and Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan
- The iEGG and Animal Biotechnology Research Center, National Chung Hsing University, Taichung 402, Taiwan
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Guo S, Kolan S, Li G, Hammarström CL, Grimolizzi F, Stuhr LEB, Skålhegg BS. Reduced EO771-induced tumour growth and increased overall-survival of mice ablated for immune cell-specific catalytic subunit Cβ2 of protein kinase A. Immunol Lett 2024:106884. [PMID: 38908524 DOI: 10.1016/j.imlet.2024.106884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/30/2024] [Accepted: 06/08/2024] [Indexed: 06/24/2024]
Abstract
Ablation of the immune-specific catalytic subunit Cβ2 of protein kinase A is associated with a proinflammatory phenotype and increased sensitivity to autoimmunity in mice. Here we show that tumour growth of the adenocarcinoma cell line EO771 in the breast and in the lung after injection into the mammary fat pad and tail vein, respectively, was significantly reduced in mice ablated for Cβ2 compared to wild-type mice. In both cases, the breast and lung tumours showed increased infiltration of immune cells in the mice lacking Cβ2 compared to wild-type mice. Despite this, it appeared that solid tissue- versus intravenously injected EO771 cells evoked differential immune responses. This was reflected by significantly increased levels of splenic proinflammatory immune cells and circulating cytokines in Cβ2 ablated mice carrying breast- but not the lung tumours. Moreover, Cβ2 ablated mice injected with EO771 cells showed increased overall survival compared to wild-type mice. Taken together, our results suggest for a role for immune cell-specific Cβ2 in protecting against tumour growth induced by EO771 cells in mice that is reflected in improved overall survival.
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Affiliation(s)
- Shuai Guo
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Shrikant Kolan
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Gaoyang Li
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | | | - Franco Grimolizzi
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | | | - Bjørn Steen Skålhegg
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
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Chablé-Vega MA, García-Hernández E, Martínez-Heredia JE, Villalpando-Aguilar JL, Arreola-Enríquez J, López-Rosas I, Alatorre-Cobos F. The return of natural dyes: the case of logwood tree ( Haematoxylum campechianum L.). Biotech Histochem 2024:1-9. [PMID: 38869850 DOI: 10.1080/10520295.2024.2367535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024] Open
Abstract
In recent years, a worldwide reassessment of natural dyes has occurred, driven by the health and environmental issues associated with synthetic dyes. Haematoxylum campechianum L. is a tropical tree from which wood extracts were widely used in the textile industry during the 16th century. The logwood tree extract serves as a contemporary source of hematoxylin, a key dye in the globally prevalent hematoxylin-eosin staining method, a cornerstone in histopathological procedures. This paper will initially explore the re-emergence of natural dyes. Subsequently, it will focus on the historical, conventional, and innovative applications of logwood in the fields of medicine, histopathology, and nanotechnology, along with the status and alternative uses of the hematoxylin-eosin stain. Lastly, this paper will examine the current state of conservation and utilization of Haematoxylum campechianum in Campeche, Mexico, a leading global producer of hematoxylin.
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Affiliation(s)
| | | | | | | | | | - Itzel López-Rosas
- Technological Institute of China, National Technological Institute of Mexico, Chiná, México
| | - Fulgencio Alatorre-Cobos
- Colegio de Postgraduados Campus Campeche, Campeche, México
- Conahcyt-Centro de Investigación Científica de Yucatán (CICY), Unidad de Biología Integrativa, Merida, México
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Carroll SH, Schafer S, Dalessandro E, Ho TV, Chai Y, Liao EC. Neural crest and periderm-specific requirements of Irf6 during neural tube and craniofacial development. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.11.598425. [PMID: 38915513 PMCID: PMC11195129 DOI: 10.1101/2024.06.11.598425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
IRF6 is a key genetic determinant of syndromic and non-syndromic cleft lip and palate. The ability to interrogate post-embryonic requirements of Irf6 has been hindered, as global Irf6 ablation in the mouse causes neonatal lethality. Prior work analyzing Irf6 in mouse models defined its role in the embryonic surface epithelium and periderm where it is required to regulate cell proliferation and differentiation. Several reports have also described Irf6 gene expression in other cell types, such as muscle, and neuroectoderm. However, analysis of a functional role in non-epithelial cell lineages has been incomplete due to the severity and lethality of the Irf6 knockout model and the paucity of work with a conditional Irf6 allele. Here we describe the generation and characterization of a new Irf6 floxed mouse model and analysis of Irf6 ablation in periderm and neural crest lineages. This work found that loss of Irf6 in periderm recapitulates a mild Irf6 null phenotype, suggesting that Irf6 -mediated signaling in periderm plays a crucial role in regulating embryonic development. Further, conditional ablation of Irf6 in neural crest cells resulted in an anterior neural tube defect of variable penetrance. The generation of this conditional Irf6 allele allows for new insights into craniofacial development and new exploration into the post-natal role of Irf6 .
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Demetriou C, Abid N, Butterworth M, Lezina L, Sandhu P, Howells L, Powley IR, Pringle JH, Sidat Z, Qassid O, Purnell D, Kaushik M, Duckworth K, Hartshorn H, Thomas A, Shaw JA, MacFarlane M, Pritchard C, Miles GJ. An optimised patient-derived explant platform for breast cancer reflects clinical responses to chemotherapy and antibody-directed therapy. Sci Rep 2024; 14:12833. [PMID: 38834809 DOI: 10.1038/s41598-024-63170-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 05/27/2024] [Indexed: 06/06/2024] Open
Abstract
Breast Cancer is the most common cancer among women globally. Despite significant improvements in overall survival, many tumours are refractory to therapy and so novel approaches are required to improve patient outcomes. We have evaluated patient-derived explants (PDEs) as a novel preclinical platform for breast cancer (BC) and implemented cutting-edge digital pathology and multi-immunofluorescent approaches for investigating biomarker changes in both tumour and stromal areas at endpoint. Short-term culture of intact fragments of BCs as PDEs retained an intact immune microenvironment, and tumour architecture was augmented by the inclusion of autologous serum in the culture media. Cell death/proliferation responses to FET chemotherapy in BC-PDEs correlated significantly with BC patient progression-free survival (p = 0.012 and p = 0.0041, respectively) and cell death responses to the HER2 antibody therapy trastuzumab correlated significantly with HER2 status (p = 0.018). These studies show that the PDE platform combined with digital pathology is a robust preclinical approach for informing clinical responses to chemotherapy and antibody-directed therapies in breast cancer. Furthermore, since BC-PDEs retain an intact tumour architecture over the short-term, they facilitate the preclinical testing of anti-cancer agents targeting the tumour microenvironment.
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Affiliation(s)
- Constantinos Demetriou
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - Naila Abid
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - Michael Butterworth
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - Larissa Lezina
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - Pavandeep Sandhu
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - Lynne Howells
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - Ian R Powley
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - James H Pringle
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - Zahirah Sidat
- HOPE Clinical Trials Facility, University Hospitals of Leicester NHS Trust, Sandringham Building, Leicester Royal Infirmary, Leicester, LE1 5WW, UK
| | - Omar Qassid
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
- Pathology Department, University Hospitals of Leicester NHS Trust, Leicester Glenfield General Hospital, Groby Road, Leicester, LE3 9QP, UK
| | - Dave Purnell
- Pathology Department, University Hospitals of Leicester NHS Trust, Leicester Glenfield General Hospital, Groby Road, Leicester, LE3 9QP, UK
| | - Monika Kaushik
- Breast Care Centre, University Hospitals of Leicester NHS Trust, Leicester Glenfield General Hospital, Groby Road, Leicester, LE3 9QP, UK
| | - Kaitlin Duckworth
- Breast Care Centre, University Hospitals of Leicester NHS Trust, Leicester Glenfield General Hospital, Groby Road, Leicester, LE3 9QP, UK
| | - Helen Hartshorn
- Breast Care Centre, University Hospitals of Leicester NHS Trust, Leicester Glenfield General Hospital, Groby Road, Leicester, LE3 9QP, UK
| | - Anne Thomas
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - Jacqui A Shaw
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK
| | - Marion MacFarlane
- MRC Toxicology Unit, Gleeson Building, Tennis Court Road, Cambridge, CB2 1QR, UK.
- Department of Molecular and Cell Biology, University of Leicester, Leicester, LE1 7HB, UK.
| | - Catrin Pritchard
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK.
| | - Gareth J Miles
- Leicester Cancer Research Centre, University of Leicester, Clinical Sciences Building, Leicester, LE2 7LX, UK.
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Marshall GF, Fasol M, Davies FCJ, Le Seelleur M, Fernandez Alvarez A, Bennett-Ness C, Gonzalez-Sulser A, Abbott CM. Face-valid phenotypes in a mouse model of the most common mutation in EEF1A2-related neurodevelopmental disorder. Dis Model Mech 2024; 17:dmm050501. [PMID: 38179821 PMCID: PMC10855229 DOI: 10.1242/dmm.050501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/21/2023] [Indexed: 01/06/2024] Open
Abstract
De novo heterozygous missense mutations in EEF1A2, encoding neuromuscular translation-elongation factor eEF1A2, are associated with developmental and epileptic encephalopathies. We used CRISPR/Cas9 to recapitulate the most common mutation, E122K, in mice. Although E122K heterozygotes were not observed to have convulsive seizures, they exhibited frequent electrographic seizures and EEG abnormalities, transient early motor deficits and growth defects. Both E122K homozygotes and Eef1a2-null mice developed progressive motor abnormalities, with E122K homozygotes reaching humane endpoints by P31. The null phenotype is driven by progressive spinal neurodegeneration; however, no signs of neurodegeneration were observed in E122K homozygotes. The E122K protein was relatively stable in neurons yet highly unstable in skeletal myocytes, suggesting that the E122K/E122K phenotype is instead driven by loss of function in muscle. Nevertheless, motor abnormalities emerged far earlier in E122K homozygotes than in nulls, suggesting a toxic gain of function and/or a possible dominant-negative effect. This mouse model represents the first animal model of an EEF1A2 missense mutation with face-valid phenotypes and has provided mechanistic insights needed to inform rational treatment design.
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Affiliation(s)
- Grant F. Marshall
- Centre for Genomic & Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Melissa Fasol
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh EH8 9XD, UK
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Faith C. J. Davies
- Centre for Genomic & Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Matthew Le Seelleur
- Centre for Genomic & Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK
| | - Alejandra Fernandez Alvarez
- Centre for Genomic & Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK
| | - Cavan Bennett-Ness
- Centre for Genomic & Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK
| | - Alfredo Gonzalez-Sulser
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh EH8 9XD, UK
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Catherine M. Abbott
- Centre for Genomic & Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh EH8 9XD, UK
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10
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Ashrafi B, Chehelcheraghi F, Rashidipour M, Hadavand S, Beiranvand B, Taherikalani M, Soroush S. Electrospun Nanofibrous Biocomposite of Royal Jelly/Chitosan/Polyvinyl Alcohol (RJ/CS/PVA) Gel as a Biological Dressing for P. aeruginosa-Infected Burn Wound. Appl Biochem Biotechnol 2024; 196:3162-3183. [PMID: 37632660 DOI: 10.1007/s12010-023-04701-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 08/28/2023]
Abstract
Burn wounds are vulnerable to various infections due to damage to the tissue and changes in immune responses. Pseudomonas aeruginosa is a critical bacterium that can cause burn wound infections, which can be life-threatening and delay wound healing. Therefore, it is essential to develop an efficient strategy to prevent the spread of infection in burn wounds. The present study aims to investigate the effectiveness of electrospun nanofibers of royal jelly on a chitosan/polyvinyl alcohol polymer scaffold in repairing burn wounds infected with Pseudomonas aeruginosa. To achieve this, the researchers analyzed the morphology and physicochemical properties of the synthesized nanofibers using SEM, FTIR, BET, and TGA analyses. They also examined the antibacterial properties of the nanofibers using agar diffusion and spread plate techniques. In addition, hemolysis tests were carried out to assess biocompatibility. Finally, the ability of the nanofibers to repair burn wounds infected with Pseudomonas aeruginosa was evaluated using a laboratory mouse model. The study results showed that the synthesized nanofibers had desirable morphology and physicochemical properties and significant antibacterial effects in both in vitro and in vivo conditions. Also, loading RJ into the polymer scaffold significantly reduced erythrocyte lysis. The wound healing and contraction rates were significantly higher than the control groups, and tissue repair, re-epithelialization, and collagen synthesis occurred faster, preventing the spread of infection to deeper tissue areas. Based on these findings, the synthesized system has the potential to serve as a suitable substitute for some invasive treatments and chemical drugs to improve chronic wounds and manage infection control in burn injuries.
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Affiliation(s)
- Behnam Ashrafi
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
- Student Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Farzaneh Chehelcheraghi
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
- Department of Anatomical Sciences, School of Medicine Lorestan, University of Medical Sciences, Khorramabad, Iran
| | - Marzieh Rashidipour
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
- Environmental Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Samaneh Hadavand
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Behrouz Beiranvand
- Department of Biostatistics and Epidemiology, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Morovat Taherikalani
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran.
- Department of Microbiology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.
| | - Setareh Soroush
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran.
- Department of Microbiology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.
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11
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Li Y, Yang Y, Li W, Chen C, Lin Q, Huang H, Gu Y, Jin X, Qian Z. Fiber optic-based integrated system for in vivo multiscale pharmacokinetic monitoring. BIOMEDICAL OPTICS EXPRESS 2024; 15:3770-3782. [PMID: 38867773 PMCID: PMC11166437 DOI: 10.1364/boe.523179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/07/2024] [Accepted: 04/14/2024] [Indexed: 06/14/2024]
Abstract
This paper presents the development of a fiber-optic-based fluorescence detection system for multi-scale monitoring of drug distribution in living animals. The integrated system utilized dual laser sources at the wavelengths of 488 nm and 650 nm and three photomultiplier channels for multi-color fluorescence detection. The emission spectra of fluorescent substances were tracked using the time-resolved fluorescence spectroscopy module to continuously monitor their blood kinetics. The fiber bundle, consisting of 30,000 optic filaments, was designed for wide-field mesoscopic imaging of the drug's interactions within organs. The inclusion of a gradient refractive index (GRIN) lens within the setup enabled fluorescence confocal laser scanning microscopy to visualize the drug distribution at the cellular level. The system performance was verified by imaging hepatic and renal tissues in mice using cadmium telluride quantum dots (CdTe QDs) and R3. By acquiring multi-level images and real-time data, our integrated system underscores its potential as a potent tool for drug assessment, specifically within the realms of pharmacokinetic and pharmacodynamic investigations.
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Affiliation(s)
- Yiran Li
- Department of Biomedical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Yamin Yang
- Department of Biomedical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Weitao Li
- Department of Biomedical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Chaofan Chen
- Department of Biomedical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Qiao Lin
- Department of Biomedical Engineering, College of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Haipeng Huang
- Department of Biomedical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Yueqing Gu
- Department of Biomedical Engineering, College of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaofei Jin
- Department of Biomedical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Zhiyu Qian
- Department of Biomedical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
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12
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Xu H, Usuyama N, Bagga J, Zhang S, Rao R, Naumann T, Wong C, Gero Z, González J, Gu Y, Xu Y, Wei M, Wang W, Ma S, Wei F, Yang J, Li C, Gao J, Rosemon J, Bower T, Lee S, Weerasinghe R, Wright BJ, Robicsek A, Piening B, Bifulco C, Wang S, Poon H. A whole-slide foundation model for digital pathology from real-world data. Nature 2024; 630:181-188. [PMID: 38778098 PMCID: PMC11153137 DOI: 10.1038/s41586-024-07441-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 04/19/2024] [Indexed: 05/25/2024]
Abstract
Digital pathology poses unique computational challenges, as a standard gigapixel slide may comprise tens of thousands of image tiles1-3. Prior models have often resorted to subsampling a small portion of tiles for each slide, thus missing the important slide-level context4. Here we present Prov-GigaPath, a whole-slide pathology foundation model pretrained on 1.3 billion 256 × 256 pathology image tiles in 171,189 whole slides from Providence, a large US health network comprising 28 cancer centres. The slides originated from more than 30,000 patients covering 31 major tissue types. To pretrain Prov-GigaPath, we propose GigaPath, a novel vision transformer architecture for pretraining gigapixel pathology slides. To scale GigaPath for slide-level learning with tens of thousands of image tiles, GigaPath adapts the newly developed LongNet5 method to digital pathology. To evaluate Prov-GigaPath, we construct a digital pathology benchmark comprising 9 cancer subtyping tasks and 17 pathomics tasks, using both Providence and TCGA data6. With large-scale pretraining and ultra-large-context modelling, Prov-GigaPath attains state-of-the-art performance on 25 out of 26 tasks, with significant improvement over the second-best method on 18 tasks. We further demonstrate the potential of Prov-GigaPath on vision-language pretraining for pathology7,8 by incorporating the pathology reports. In sum, Prov-GigaPath is an open-weight foundation model that achieves state-of-the-art performance on various digital pathology tasks, demonstrating the importance of real-world data and whole-slide modelling.
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Affiliation(s)
- Hanwen Xu
- Microsoft Research, Redmond, WA, USA
- Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA, USA
| | | | | | | | | | | | | | | | | | - Yu Gu
- Microsoft Research, Redmond, WA, USA
| | - Yanbo Xu
- Microsoft Research, Redmond, WA, USA
| | - Mu Wei
- Microsoft Research, Redmond, WA, USA
| | | | | | - Furu Wei
- Microsoft Research, Redmond, WA, USA
| | | | | | | | | | | | - Soohee Lee
- Providence Research Network, Renton, WA, USA
| | | | | | | | - Brian Piening
- Providence Genomics, Portland, OR, USA
- Earle A. Chiles Research Institute, Providence Cancer Institute, Portland, OR, USA
| | - Carlo Bifulco
- Providence Genomics, Portland, OR, USA.
- Earle A. Chiles Research Institute, Providence Cancer Institute, Portland, OR, USA.
| | - Sheng Wang
- Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA, USA.
- Department of Surgery, University of Washington, Seattle, WA, USA.
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13
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Danga AK, Kour S, Kumari A, Rath PC. Cell-type specific and differential expression of LINC-RSAS long noncoding RNA declines in the testes during ageing of the rat. Biogerontology 2024; 25:543-566. [PMID: 38353919 DOI: 10.1007/s10522-023-10088-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 12/15/2023] [Indexed: 03/26/2024]
Abstract
Long noncoding RNAs (lncRNAs) have emerged as major regulators of gene expression, chromatin structure, epigenetic changes, post-transcriptional processing of RNAs, translation of mRNAs into proteins as well as contributing to the process of ageing. Ageing is a universal, slow, progressive change in almost all physiological processes of organisms after attaining reproductive maturity and often associated with age-related diseases. Mammalian testes contain various cell-types, vast reservoir of transcriptome complexity, produce haploid male gametes for reproduction and testosterone for development and maintenance of male sexual characters as well as contribute genetic variation to the species. We report age-related decline in expression and cellular localization of Long intergenic noncoding repeat-rich sense-antisense (LINC-RSAS) RNA in the testes and its major cell-types such as primary spermatocytes, Leydig cells and Sertoli cells during ageing of the rat. LINC-RSAS expression in testes increased from immature (4-weeks) to adult (16- and 44-weeks) and declined from adult (44-weeks) to nearly-old (70-weeks) rats. Genomic DNA methylation in the testes showed a similar pattern. Cell-type specific higher expression of LINC-RSAS was observed in primary spermatocytes (pachytene cells), Leydig cells and Sertoli cells of testes of adult rats. Over-expression of LINC-RSAS in cultured human cell lines revealed its possible role in cell-cycle control and apoptosis. We propose that LINC-RSAS expression is involved in molecular physiology of primary spermatocytes, Leydig cells and Sertoli cells of adult testes and its decline is associated with diminishing function of testes during ageing of the rat.
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Affiliation(s)
- Ajay Kumar Danga
- Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Sukhleen Kour
- Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
- Department of Pediatrics, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, 15224, USA
| | - Anita Kumari
- Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Pramod C Rath
- Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
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14
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Shen Z, Ma N, Xu J, Wang T. Metal-ion-controlled hydrogel dressing with enhanced adhesive and antibacterial properties for accelerated wound healing. Mater Today Bio 2024; 26:101039. [PMID: 38596825 PMCID: PMC11002314 DOI: 10.1016/j.mtbio.2024.101039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/11/2024] [Accepted: 03/22/2024] [Indexed: 04/11/2024] Open
Abstract
In order to improve the wound repair environment, this research has successfully developed a new multifunctional hydrogel dressing, which has strong adaptability and can accelerate wound healing. Pioneering the development of metal-ion-controlled hydrogel dressings, this research integrates dopamine and imidazole double crosslinked networks with metal-ion coordination. The resulting hydrogel dressing exhibits a notable antibacterial effect and exceptional mechanical properties, withstanding pressures of up to 12 kPa, tensions of 25 kPa, and maintaining skin adhesion at 6 kPa. Furthermore, the dressing can self-heal within only 7-8 s post-injection. Impressively, the hydrogel achieves complete biodegradation within a short timeframe (37 h). Notably, the use of various metal ions facilitates painless peeling during the degradation period, perfectly aligning with the requirements of an ideal wound dressing. This study has made significant progress in the fields of trauma repair and materials, providing strong solutions for dealing with harsh post-traumatic environments.
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Affiliation(s)
- Zihao Shen
- Aulin College, Northeast Forestry University, Harbin, Heilongjiang, 150000, China
| | - Ningyi Ma
- Aulin College, Northeast Forestry University, Harbin, Heilongjiang, 150000, China
| | - Juan Xu
- NHC Key Laboratory of Reproductive Health Engineering Technology Research, Haidian District, No. 12, Da Hui Si Road, Beijing, 100081, China
- National Research Institute for Family Planning, Haidian District, No. 12, Da Hui Si Road, Beijing, 100081, China
| | - Ting Wang
- Aulin College, Northeast Forestry University, Harbin, Heilongjiang, 150000, China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, Heilongjiang, China
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15
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Jurjus R, Dosh L, Farhat R, Daccache T, El Masri J, Ghazi M, Hawi J, Leone A, Jurjus A. Lack of Syndecan-1 promotes the pathogenesis of experimental rheumatoid arthritis. Immunogenetics 2024; 76:145-154. [PMID: 38451352 DOI: 10.1007/s00251-024-01337-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 02/21/2024] [Indexed: 03/08/2024]
Abstract
Syndecan-1 (Sdc-1), a transmembrane heparan sulfate protein, is implicated in several pathophysiological processes including rheumatoid arthritis (RA). The exact role of Syndican-1 in this autoimmune disease is still undetermined. This study explores the involvement level of Sdc-1 in the development of RA in a collagen II-induced arthritis mice model. RA was induced in two mice strains (wild-type BALB/c group and Sdc-1 knockout) by collagen II. Mice underwent regular clinical observations and scoring. After sacrifice, leg biopsies were taken from mice for histological examination, using a variety of stains. In addition, proteins were extracted, and molecular assessment of TNF-α was performed using the western blot technique. In the Sdc-1 knockout group, clinical scoring results showed a significantly more severe experimental RA; histology showed a significant increase in bone erosion, cartilage destruction, inflammation, and less granulated mast cells than the wild-type. In addition, molecular assessment of TNF-α showed more increase in expression in the Sdc-1 knockout models compared to the wild-type. Data suggest that lack of Sdc-1 enhances the inflammatory characteristics in RA. However, more molecular studies and investigations are needed to determine its exact role and possible mechanisms involved.
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MESH Headings
- Animals
- Male
- Mice
- Arthritis, Experimental/genetics
- Arthritis, Experimental/pathology
- Arthritis, Experimental/immunology
- Arthritis, Rheumatoid/genetics
- Arthritis, Rheumatoid/pathology
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/immunology
- Collagen Type II/genetics
- Disease Models, Animal
- Mice, Inbred BALB C
- Mice, Knockout
- Syndecan-1/genetics
- Syndecan-1/metabolism
- Tumor Necrosis Factor-alpha/metabolism
- Tumor Necrosis Factor-alpha/genetics
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Affiliation(s)
- Rosalyn Jurjus
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Bliss Street, Beirut, 1107-2020, Lebanon
| | - Laura Dosh
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Bliss Street, Beirut, 1107-2020, Lebanon
| | - Rima Farhat
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Bliss Street, Beirut, 1107-2020, Lebanon
| | - Tatiana Daccache
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Bliss Street, Beirut, 1107-2020, Lebanon
| | - Jad El Masri
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Bliss Street, Beirut, 1107-2020, Lebanon
| | - Maya Ghazi
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Bliss Street, Beirut, 1107-2020, Lebanon
| | - Jihad Hawi
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Bliss Street, Beirut, 1107-2020, Lebanon
| | - Angelo Leone
- Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, Palermo, 90127, Italy
| | - Abdo Jurjus
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Bliss Street, Beirut, 1107-2020, Lebanon.
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16
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Tweel JED, Ecclestone BR, Boktor M, Dinakaran D, Mackey JR, Reza PH. Automated Whole Slide Imaging for Label-Free Histology Using Photon Absorption Remote Sensing Microscopy. IEEE Trans Biomed Eng 2024; 71:1901-1912. [PMID: 38231822 DOI: 10.1109/tbme.2024.3355296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
OBJECTIVE Pathologists rely on histochemical stains to impart contrast in thin translucent tissue samples, revealing tissue features necessary for identifying pathological conditions. However, the chemical labeling process is destructive and often irreversible or challenging to undo, imposing practical limits on the number of stains that can be applied to the same tissue section. Here we present an automated label-free whole slide scanner using a PARS microscope designed for imaging thin, transmissible samples. METHODS Peak SNR and in-focus acquisitions are achieved across entire tissue sections using the scattering signal from the PARS detection beam to measure the optimal focal plane. Whole slide images (WSI) are seamlessly stitched together using a custom contrast leveling algorithm. Identical tissue sections are subsequently H&E stained and brightfield imaged. The one-to-one WSIs from both modalities are visually and quantitatively compared. RESULTS PARS WSIs are presented at standard 40x magnification in malignant human breast and skin samples. We show correspondence of subcellular diagnostic details in both PARS and H&E WSIs and demonstrate virtual H&E staining of an entire PARS WSI. The one-to-one WSI from both modalities show quantitative similarity in nuclear features and structural information. CONCLUSION PARS WSIs are compatible with existing digital pathology tools, and samples remain suitable for histochemical, immunohistochemical, and other staining techniques. SIGNIFICANCE This work is a critical advance for integrating label-free optical methods into standard histopathology workflows.
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17
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Cho KH, Bahuguna A, Kim JE, Lee SH. Efficacy Assessment of Five Policosanol Brands and Damage to Vital Organs in Hyperlipidemic Zebrafish by Six-Week Supplementation: Highlighting the Toxicity of Red Yeast Rice and Safety of Cuban Policosanol (Raydel ®). Pharmaceuticals (Basel) 2024; 17:714. [PMID: 38931381 DOI: 10.3390/ph17060714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
Policosanol is a mixture of long-chain aliphatic alcohols (LCAAs) derived from various plant and insect origins that are marketed by various companies with distinct formulations and brand names. Policosanols offer several beneficial effects to treat dyslipidemia and hypertension; however, a comprehensive functionality comparison of various policosanol brands has yet to be thoroughly explored. In the present study five distinct policosanol brands from different origins and countries, Raydel-policosanol, Australia (PCO1), Solgar-policosanol, USA (PCO2), NutrioneLife-monacosanol, South Korea (PCO3), Mothernest-policosanol, Australia (PCO4), and Peter & John-policosanol, New Zealand (PCO5) were compared via dietary supplementation (1% in diet, final wt/wt) to zebrafish for six weeks to investigate their impact on survivability, blood lipid profile, and functionality of vital organs under the influence of a high-cholesterol diet (HCD, final 4%, wt/wt). The results revealed that policosanol brands (PCO1-PCO5) had a substantial preventive effect against HCD-induced zebrafish body weight elevation and hyperlipidemia by alleviating total cholesterol (TC) and triglycerides (TG) in blood. Other than PCO3, all the brands significantly reduced the HCD's elevated low-density lipoprotein cholesterol (LDL-C). On the contrary, only PCO1 displayed a significant elevation in high-density lipoprotein cholesterol (HDL-C) level against the consumption of HCD. The divergent effect of PCO1-PCO5 against HCD-induced hepatic damage biomarkers, aspartate aminotransferase (AST) and alanine aminotransferase (ALT), was observed. PCO1, PCO2, and PCO4 efficiently curtailed the AST and ALT levels; however, PCO3 and PCO5 potentially aggravated the HCD's elevated plasma AST and ALT levels. Consistently, the hepatic histology outcome revealed the least effectiveness of PCO3 and PCO5 against HCD-induced liver damage. On the contrary, PCO1 exhibited a substantial hepatoprotective role by curtailing HCD-induced fatty liver changes, cellular senescent, reactive oxygen species (ROS), and interleukin-6 (IL-6) production. Likewise, the histological outcome from the kidney, testis, and ovary revealed the significant curative effect of PCO1 against the HCD-induced adverse effects. PCO2-PCO5 showed diverse and unequal results, with the least effective being PCO3, followed by PCO5 towards HCD-induced kidney, testis, and ovary damage. The multivariate interpretation based on principal component analysis (PCA) and hierarchical cluster analysis (HCA) validated the superiority of PCO1 over other policosanol brands against the clinical manifestation associated with HCD. Conclusively, different brands displayed distinct impacts against HCD-induced adverse effects, signifying the importance of policosanol formulation and the presence of aliphatic alcohols on the functionality of policosanol products.
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Affiliation(s)
- Kyung-Hyun Cho
- Raydel Research Institute, Medical Innovation Complex, Daegu 41061, Republic of Korea
| | - Ashutosh Bahuguna
- Raydel Research Institute, Medical Innovation Complex, Daegu 41061, Republic of Korea
| | - Ji-Eun Kim
- Raydel Research Institute, Medical Innovation Complex, Daegu 41061, Republic of Korea
| | - Sang Hyuk Lee
- Raydel Research Institute, Medical Innovation Complex, Daegu 41061, Republic of Korea
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18
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Arias-Pacheco C, Perin PP, de Oliveira Andrade L, Gomes JS, Oliveira WJ, Mendonça TO, de Oliveira Zolla N, Cavallieri AC, da Silva DA, Castilho PM, de Barros LD, Garcia JL, Lux Hoppe EG. Toxoplasma gondii infection in European brown hares (Lepus europaeus) in Brazil. Parasitol Res 2024; 123:222. [PMID: 38801539 DOI: 10.1007/s00436-024-08248-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Toxoplasmosis is a worldwide zoonosis that affects warm-blooded animals, including humans. Wild animals can act as intermediate hosts of this pathogen; thus, this study aims to detect Toxoplasma gondii infection in invasive European brown hares in Brazil. For this, 72 wild European brown hares were captured from July 2020 to June 2022 in three Brazilian states: São Paulo, Paraná, and Rio Grande do Sul. The diagnostic of Toxoplasma gondii infection was performed by bioassay in mouse, histopathology in Hematoxylin-Eosin-stained tissue sections (brain, liver, lungs, kidneys, and small intestine), serology by IFAT, and molecular techniques by conventional PCR and qPCR. The combined prevalence of the different diagnostic methods was 51.4% (37/72, CI= 40.1 - 62.6 %), and there was no statistical difference between sexes, age range, or geographical region of the hosts. Mouse bioassay was the technique that detected more positive hares. To our knowledge, this is the first confirmation of Toxoplasma gondii infection in invasive European brown hares in Brazil. These animals act as reservoirs and potential infection source for carnivores and other wild and domestic animals, including humans, thus contributing to perpetuate the disease cycle in São Paulo, Paraná, and Rio Grande do Sul States. Research such as the present study is necessary to raise awareness about the role of animals in the disease cycle.
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Affiliation(s)
- Carmen Arias-Pacheco
- Parasitic Diseases Laboratory (LabEPar), Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University, São Paulo, 14884-900, Brazil
| | - Patricia Parreira Perin
- Parasitic Diseases Laboratory (LabEPar), Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University, São Paulo, 14884-900, Brazil
| | - Lívia de Oliveira Andrade
- Parasitic Diseases Laboratory (LabEPar), Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University, São Paulo, 14884-900, Brazil
| | - Jonathan Silvestre Gomes
- Parasitic Diseases Laboratory (LabEPar), Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University, São Paulo, 14884-900, Brazil
| | - Wilson Junior Oliveira
- Parasitic Diseases Laboratory (LabEPar), Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University, São Paulo, 14884-900, Brazil
| | - Talita Oliveira Mendonça
- Parasitic Diseases Laboratory (LabEPar), Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University, São Paulo, 14884-900, Brazil
| | - Natália de Oliveira Zolla
- Parasitic Diseases Laboratory (LabEPar), Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University, São Paulo, 14884-900, Brazil
| | - Ana Carolina Cavallieri
- Laboratory of Protozoology, Preventive Veterinary Medicine Department, State University of Londrina, São Paulo, PR, 86057-970, Brazil
| | - Douglas Aparecido da Silva
- Laboratory of Protozoology, Preventive Veterinary Medicine Department, State University of Londrina, São Paulo, PR, 86057-970, Brazil
| | - Pablo Menegon Castilho
- Laboratory of Protozoology, Preventive Veterinary Medicine Department, State University of Londrina, São Paulo, PR, 86057-970, Brazil
| | - Luiz Daniel de Barros
- Laboratory of Veterinary Parasitology and Parasitic Diseases, Veterinary Medicine Department, Federal University of Lavras, Londrina, MG, 37203-202, Brazil
| | - João Luis Garcia
- Laboratory of Protozoology, Preventive Veterinary Medicine Department, State University of Londrina, São Paulo, PR, 86057-970, Brazil
| | - Estevam G Lux Hoppe
- Parasitic Diseases Laboratory (LabEPar), Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University, São Paulo, 14884-900, Brazil.
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Jalili A, Shojaei-Ghahrizjani F, Tabatabaiefar MA, Rahmati S. Decellularized skin pretreatment by monophosphoryl lipid A and lactobacillus casei supernatant accelerate skin recellularization. Mol Biol Rep 2024; 51:675. [PMID: 38787484 DOI: 10.1007/s11033-024-09599-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 04/30/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Bioscaffolds and cells are two main components in the regeneration of damaged tissues via cell therapy. Umbilical cord stem cells are among the most well-known cell types for this purpose. The main objective of the present study was to evaluate the effect of the pretreatment of the foreskin acellular matrix (FAM) by monophosphoryl lipid A (MPLA) and Lactobacillus casei supernatant (LCS) on the attraction of human umbilical cord mesenchymal stem cells (hucMSC). METHODS AND RESULTS The expression of certain cell migration genes was studied using qRT-PCR. In addition to cell migration, transdifferentiation of these cells to the epidermal-like cells was evaluated via immunohistochemistry (IHC) and immunocytochemistry (ICC) of cytokeratin 19 (CK19). The hucMSC showed more tissue tropism in the presence of MPLA and LCS pretreated FAM compared to the untreated control group. We confirmed this result by scanning electron microscopy (SEM) analysis, glycosaminoglycan (GAG), collagen, and DNA content. Furthermore, IHC and ICC data demonstrated that both treatments increase the protein expression level of CK19. CONCLUSION Pretreatment of acellular bioscaffolds by MPLA or LCS can increase the migration rate of cells and also transdifferentiation of hucMSC to epidermal-like cells without growth factors. This strategy suggests a new approach in regenerative medicine.
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Affiliation(s)
- Ali Jalili
- Department of Immunology and Hematology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | | | - Mohammad Amin Tabatabaiefar
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shima Rahmati
- Cancer Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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He W, Wei J, Liu X, Zhang Z, Huang R, Jiang Z. Semaglutide ameliorates pressure overload-induced cardiac hypertrophy by improving cardiac mitophagy to suppress the activation of NLRP3 inflammasome. Sci Rep 2024; 14:11824. [PMID: 38782946 PMCID: PMC11116553 DOI: 10.1038/s41598-024-62465-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 05/17/2024] [Indexed: 05/25/2024] Open
Abstract
Pathological cardiac hypertrophy is an important cause of heart failure(HF). Recent studies reveal that glucagon-like peptide-1 receptor (GLP1R) agonists can improve mortality and left ventricular ejection fraction in the patients with type 2 diabetes and HF. The present study aims to investigate whether semaglutide, a long-acting GLP1R agonist, can ameliorate cardiac hypertrophy induced by pressure overload, and explore the potential mechanism. The rats were performed transverse aortic constriction (TAC) to mimic pressure overload model. The rats were divided into four groups including Sham, TAC, TAC + semaglutide, and TAC + semaglutide + HCQ (hydroxychloroquine, an inhibitor of mitophagy). The rats in each experimental group received their respective interventions for 4 weeks. The parameters of left ventricular hypertrophy(LVH) were measured by echocardiography, Hematoxylin-eosin (HE) staining, western-blot and immunohistochemistry (IHC), respectively. The changes of mitophagy were reflected by detecting cytochrome c oxidase subunit II (COXII), LC3II/LC3I, mitochondria, and autophagosomes. Meanwhile, NLRP3, Caspase-1, and interleukin-18 were detected to evaluate the activation of NLRP3 inflammasome in each group. The results suggest that LVH, impaired mitophagy, and activation of NLRP3 inflammasome were present in TAC rats. Semaglutide significantly reduced LVH, improve mitophagy, and down-regulated NLRP3 inflammatory signal pathway in TAC rats. However, the reversed effect of semaglutide on cardiac hypertrophy was abolished by HCQ, which restored the activation of NLRP3 inflammasome suppressed by improved mitophagy. In conclusion, semaglutide ameliorates the cardiac hypertrophy by improving cardiac mitophagy to suppress the activation of NLRP3 inflammasome. Semaglutide may be a novel potential option for intervention of cardiac hypertrophy induced by pressure overload.
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Affiliation(s)
- Wenxiu He
- Department of Cardiology, First Affiliated Hospital, Guangxi Medical University, 6 Shuangyong Road, Qingxiu District, Nanning, 530021, China
| | - Jiahe Wei
- Department of Cardiology, First Affiliated Hospital, Guangxi Medical University, 6 Shuangyong Road, Qingxiu District, Nanning, 530021, China
| | - Xing Liu
- Department of Cardiology, First Affiliated Hospital, Guangxi Medical University, 6 Shuangyong Road, Qingxiu District, Nanning, 530021, China
| | - Zhongyin Zhang
- Department of Cardiology, First Affiliated Hospital, Guangxi Medical University, 6 Shuangyong Road, Qingxiu District, Nanning, 530021, China
| | - Rongjie Huang
- Department of Cardiology, First Affiliated Hospital, Guangxi Medical University, 6 Shuangyong Road, Qingxiu District, Nanning, 530021, China.
| | - Zhiyuan Jiang
- Department of Cardiology, First Affiliated Hospital, Guangxi Medical University, 6 Shuangyong Road, Qingxiu District, Nanning, 530021, China.
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Erdaş ÇB. Computer-aided colorectal cancer diagnosis: AI-driven image segmentation and classification. PeerJ Comput Sci 2024; 10:e2071. [PMID: 38855213 PMCID: PMC11157578 DOI: 10.7717/peerj-cs.2071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 04/29/2024] [Indexed: 06/11/2024]
Abstract
Colorectal cancer is an enormous health concern since it is among the most lethal types of malignancy. The manual examination has its limitations, including subjectivity and data overload. To overcome these challenges, computer-aided diagnostic systems focusing on image segmentation and abnormality classification have been developed. This study presents a two-stage approach for the automatic detection of five types of colorectal abnormalities in addition to a control group: polyp, low-grade intraepithelial neoplasia, high-grade intraepithelial neoplasia, serrated adenoma, adenocarcinoma. In the first stage, UNet3+ was used for image segmentation to locate the anomalies, while in the second stage, the Cross-Attention Multi-Scale Vision Transformer deep learning model was used to predict the type of anomaly after highlighting the anomaly on the raw images. In anomaly segmentation, UNet3+ achieved values of 0.9872, 0.9422, 0.9832, and 0.9560 for Dice Coefficient, Jaccard Index, Sensitivity, Specificity respectively. In anomaly detection, the Cross-Attention Multi-Scale Vision Transformer model attained a classification performance of 0.9340, 0.9037, 0.9446, 0.8723, 0.9102, 0.9849 for accuracy, F1 score, precision, recall, Matthews correlation coefficient, and specificity, respectively. The proposed approach proves its capacity to alleviate the overwhelm of pathologists and enhance the accuracy of colorectal cancer diagnosis by achieving high performance in both the identification of anomalies and the segmentation of regions.
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Arrari F, Jabri MA, Ayari A, Dakhli N, Ben Fayala C, Boubaker S, Sebai H. Amino acid HPLC-FLD analysis of spirulina and its protective mechanism against the combination of obesity and colitis in wistar rats. Heliyon 2024; 10:e30103. [PMID: 38694088 PMCID: PMC11061748 DOI: 10.1016/j.heliyon.2024.e30103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 05/03/2024] Open
Abstract
Objective The cafeteria diet (CD), designed as an experimental diet mimicking the obesogenic diet, may contribute to the pathogenesis of inflammatory bowel diseases (IBD). This study delves into the influence of spirulina (SP) on obesity associated with colitis in Wistar rats. Methods The amino acids composition of SP was analyzed using HPLC-FLD. Animals were equally separated into eight groups, each containing seven animals and treated daily for eight weeks as follows: Control diet (SD), cafeteria diet (CD) group, CD + SP (500 mg/kg) and SD + SP. Ulcerative colitis was provoked by rectal injection of acetic acid (AA) (3 % v/v, 5 ml/kg b.w.) on the last day of treatment in the following groups: SD + AA, SD + AA + SP, CD + AA, and CD + AA + SP. Results Findings revealed that UC and/or CD increased the abdominal fat, weights gain, and colons. Moreover, severe colonic alteration, perturbations in the serum metabolic parameters associated with an oxidative stress state in the colonic mucosa, defined by overproduction of reactive oxygen species (ROS) and increased levels of plasma scavenging activity (PSA). Additionally, obesity exacerbated the severity of AA-induced UC promoting inflammation marked by the overexpression of pro-inflammatory cytokines. Significantly, treatment with SP provided notable protection against inflammation severity, reduced histopathological alterations, attenuated lipid peroxidation (MDA), and enhanced antioxidant enzyme activities (CAT, SOD, and GPX) along with non-enzymatic antioxidants (GSH and SH-G). Conclusions Thus, the antioxidant effects and anti-inflammatory proprieties of SP could be attributed to its richness in amino acids, which could potentially mitigate inflammation severity in obese subjects suffering from ulcerative colitis. These results imply that SP hold promise as a therapeutic agent for managing of UC, particularly in individuals with concomitant obesity. Understanding SP's mechanisms of action may lead novel treatment strategies for inflammatory bowel diseases and hyperlipidemia in medical research.
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Affiliation(s)
- Fatma Arrari
- Université de Jendouba, Institut Supérieur de Biotechnologie de Béja, LR: Physiologie Fonctionnelle et Valorisation des Bio-Ressources, 9000, Béja, Tunisia
| | - Mohamed-Amine Jabri
- Université de Jendouba, Institut Supérieur de Biotechnologie de Béja, LR: Physiologie Fonctionnelle et Valorisation des Bio-Ressources, 9000, Béja, Tunisia
| | - Ala Ayari
- Université de Jendouba, Institut Supérieur de Biotechnologie de Béja, LR: Physiologie Fonctionnelle et Valorisation des Bio-Ressources, 9000, Béja, Tunisia
| | - Nouha Dakhli
- Université de Jendouba, Institut Supérieur de Biotechnologie de Béja, LR: Physiologie Fonctionnelle et Valorisation des Bio-Ressources, 9000, Béja, Tunisia
| | - Chayma Ben Fayala
- Laboratoire d'anatomie Pathologique Humaine et Expérimentale, Institut Pasteur de Tunis, 13, Place Pasteur, Tunis, 1002, Tunisia
| | - Samir Boubaker
- Laboratoire d'anatomie Pathologique Humaine et Expérimentale, Institut Pasteur de Tunis, 13, Place Pasteur, Tunis, 1002, Tunisia
| | - Hichem Sebai
- Université de Jendouba, Institut Supérieur de Biotechnologie de Béja, LR: Physiologie Fonctionnelle et Valorisation des Bio-Ressources, 9000, Béja, Tunisia
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Konar S, Leung S, Tay ML, Coleman B, Dalbeth N, Cornish J, Naot D, Musson DS. Novel In Vitro Platform for Studying the Cell Response to Healthy and Diseased Tendon Matrices. ACS Biomater Sci Eng 2024; 10:3293-3305. [PMID: 38666422 DOI: 10.1021/acsbiomaterials.4c00414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Current in vitro models poorly represent the healthy or diseased tendon microenvironment, limiting the translation of the findings to clinics. The present work aims to establish a physiologically relevant in vitro tendon platform that mimics biophysical aspects of a healthy and tendinopathic tendon matrix using a decellularized bovine tendon and to characterize tendon cells cultured using this platform. Bovine tendons were subjected to various decellularization techniques, with the efficacy of decellularization determined histologically. The biomechanical and architectural properties of the decellularized tendons were characterized using an atomic force microscope. Tendinopathy-mimicking matrices were prepared by treating the decellularized tendons with collagenase for 3 h or collagenase-chondroitinase (CC) for 1 h. The tendon tissue collected from healthy and tendinopathic patients was characterized using an atomic force microscope and compared to that of decellularized matrices. Healthy human tendon-derived cells (hTDCs) from the hamstring tendon were cultured on the decellularized matrices for 24 or 48 h, with cell morphology characterized using f-actin staining and gene expression characterized using real-time PCR. Tendon matrices prepared by freeze-thawing and 48 h nuclease treatment were fully decellularized, and the aligned structure and tendon stiffness (1.46 MPa) were maintained. Collagenase treatment prepared matrices with a disorganized architecture and reduced stiffness (0.75 MPa), mimicking chronic tendinopathy. Treatment with CC prepared matrices with a disorganized architecture without altering stiffness, mimicking early tendinopathy (1.52 MPa). hTDCs on a healthy tendon matrix were elongated, and the scleraxis (SCX) expression was maintained. On tendinopathic matrices, hTDCs had altered morphological characteristics and lower SCX expression. The expression of genes related to actin polymerization, matrix degradation and remodeling, and immune cell invasion were higher in hTDCs on tendinopathic matrices. Overall, the present study developed a physiological in vitro system to mimic healthy tendons and early and late tendinopathy, and it can be used to better understand tendon cell characteristics in healthy and diseased states.
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Affiliation(s)
- Subhajit Konar
- Department of Nutrition and Dietetics, University of Auckland, Auckland 1142, New Zealand
| | - Sophia Leung
- Department of Anatomy and Medical Imaging, University of Auckland, Auckland 1142, New Zealand
| | - Mei Lin Tay
- Department of Surgery, University of Auckland, Auckland 1142, New Zealand
| | - Brendan Coleman
- Department of Orthopaedics, Middlemore Hospital, Auckland 1640, New Zealand
| | - Nicola Dalbeth
- Department of Medicine, University of Auckland, Auckland 1142, New Zealand
| | - Jillian Cornish
- Department of Medicine, University of Auckland, Auckland 1142, New Zealand
| | - Dorit Naot
- Department of Nutrition and Dietetics, University of Auckland, Auckland 1142, New Zealand
| | - David S Musson
- Department of Nutrition and Dietetics, University of Auckland, Auckland 1142, New Zealand
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Firdaus Z, Gutti G, Ganeshpurkar A, Kumar A, Krishnamurthy S, Singh SK, Singh TD. Centella asiatica improves memory and executive function in middle-aged rats by controlling oxidative stress and cholinergic transmission. JOURNAL OF ETHNOPHARMACOLOGY 2024; 325:117888. [PMID: 38336185 DOI: 10.1016/j.jep.2024.117888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Centella asiatica (L.) Urban, is a medicinal herb with rich history of traditional use in Indian subcontinent. This herb has been valued for its diverse range of medicinal properties including memory booster, and also as a folk treatment for skin diseases, wound healing and mild diuretic. AIM OF STUDY Aging is a gradual and continuous process of natural decay in the biological systems, including the brain. This work aims to evaluate the effectiveness of ethanolic extract of Centella asiatica (CAE) on age-associated cognitive impairments in rats, as well as the underlying mechanism. MATERIAL AND METHODS Rats were allocated into five distinct groups of 5 animals each: Young rats (3 months old rats), middle-aged (m-aged) rats (13-14 months old), and the remaining three groups were comprised of m-aged rats treated with different concentrations of CAE, viz., 150, 300, and 450 mg/kg b. w., orally for 42 days. Y-maze, open field, novel object recognition, and elevated plus maze tests were used to assess animal behavior. The malondialdehyde (MDA), superoxide dismutase (SOD), and acetylcholinesterase (AChE) assays; and H&E staining were done in the rat brain to assess the biochemical and structural changes. CAE was also subjected to HPLC analysis, in vitro antioxidant and anti-cholinergic activity. The active compounds of CAE were docked with AChE and BuChE in molecular docking study. RESULTS The results showed that CAE treatment improves behavioral performance; attenuates the age-associated increase in MDA content, SOD, and AChE activity; and reduces neuronal loss. In vitro study showed that CAE has concentration-dependent antioxidant and anti-AChE activity. Furthermore, the presence of Asiatic acid and Madecassic acid in CAE and their good binding with cholinergic enzymes (in silico) also suggest the anticholinergic effect of CAE. CONCLUSION The findings of the current study show that the anticholinergic and antioxidant effects of CAE are attributable to the presence of Asiatic acid and Madecassic acid, which not only provide neuroprotection against age-associated cognitive decline but also reverse it.
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Affiliation(s)
- Zeba Firdaus
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Gopichand Gutti
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology, BHU, Varanasi, 221005, India
| | - Ankit Ganeshpurkar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology, BHU, Varanasi, 221005, India
| | - Ashok Kumar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology, BHU, Varanasi, 221005, India
| | - Sairam Krishnamurthy
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology, BHU, Varanasi, 221005, India
| | - Sushil Kumar Singh
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology, BHU, Varanasi, 221005, India
| | - Tryambak Deo Singh
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India.
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Nosková E, Svobodová V, Hypská V, Cerezo-Echevarria A, Kurucová T, Ilík V, Modrý D, Pafčo B. High-throughput sequencing of Strongyloides stercoralis - a fatal disseminated infection in a dog. Parasitology 2024:1-7. [PMID: 38800868 DOI: 10.1017/s0031182024000568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The rhabditid nematode Strongyloides stercoralis is known worldwide as the causative agent of strongyloidiasis in humans. In addition to public health concerns, S. stercoralis also infects dogs, which represent a possible reservoir for potentially zoonotic transmissions. We describe the first confirmed case of fatal disseminated infection in a dog in the Czech Republic. The microscopic and histological results were supported by a complex genotyping approach. Using high-throughput sequencing of the hypervariable region (HVR-IV) of 18S rDNA and Sanger sequencing of the partial cytochrome c oxidase subunit 1 gene (cox1), the potentially zoonotic haplotype/lineage A of S. stercoralis was confirmed, while the solely canine haplotype/lineage B was not found. The development of the disease is mainly associated with immunodeficiency, and in this case, it was triggered by inappropriate treatment, in particular the use of corticosteroids.
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Affiliation(s)
- Eva Nosková
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 603 00 Brno, Czech Republic
| | - Vlasta Svobodová
- Department of Pathology and Parasitology, University of Veterinary Sciences Brno, Palackého třída 1946/1, 612 42, Brno, Czech Republic
| | - Vilma Hypská
- Veterinary centrum VIVA, Medkova 6, 500 02 Hradec Králové, Czech Republic
| | | | - Terézia Kurucová
- Central European Institute of Technology, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic
| | - Vladislav Ilík
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 603 00 Brno, Czech Republic
| | - David Modrý
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Barbora Pafčo
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 603 00 Brno, Czech Republic
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Chen Y, Zhang L, Shi X, Han J, Chen J, Zhang X, Xie D, Li Z, Niu X, Chen L, Yang C, Sun X, Zhou T, Su P, Li N, Greenblatt MB, Ke R, Huang J, Chen Z, Xu R. Characterization of the Nucleus Pulposus Progenitor Cells via Spatial Transcriptomics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2303752. [PMID: 38311573 PMCID: PMC11095158 DOI: 10.1002/advs.202303752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 01/11/2024] [Indexed: 02/06/2024]
Abstract
Loss of refreshment in nucleus pulposus (NP) cellularity leads to intervertebral disc (IVD) degeneration. Nevertheless, the cellular sequence of NP cell differentiation remains unclear, although an increasing body of literature has identified markers of NP progenitor cells (NPPCs). Notably, due to their fragility, the physical enrichment of NP-derived cells has limited conventional transcriptomic approaches in multiple studies. To overcome this limitation, a spatially resolved transcriptional atlas of the mouse IVD is generated via the 10x Genomics Visium platform dividing NP spots into two clusters. Based on this, most reported NPPC-markers, including Cathepsin K (Ctsk), are rare and predominantly located within the NP-outer subset. Cell lineage tracing further evidence that a small number of Ctsk-expressing cells generate the entire adult NP tissue. In contrast, Tie2, which has long suggested labeling NPPCs, is actually neither expressed in NP subsets nor labels NPPCs and their descendants in mouse models; consistent with this, an in situ sequencing (ISS) analysis validated the absence of Tie2 in NP tissue. Similarly, no Tie2-cre-mediated labeling of NPPCs is observed in an IVD degenerative mouse model. Altogether, in this study, the first spatial transcriptomic map of the IVD is established, thereby providing a public resource for bone biology.
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Affiliation(s)
- Yu Chen
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Long Zhang
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Xueqing Shi
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Jie Han
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Jingyu Chen
- Gene Denovo Biotechnology CoGuangzhou510006China
| | - Xinya Zhang
- School of Medicine and School of Biomedical SciencesHuaqiao UniversityQuanzhou362000China
| | - Danlin Xie
- School of Medicine and School of Biomedical SciencesHuaqiao UniversityQuanzhou362000China
- School of Life SciencesWestlake UniversityHangzhou310030China
| | - Zan Li
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Xing Niu
- China Medical UniversityShenyangLiaoning110122China
| | - Lijie Chen
- China Medical UniversityShenyangLiaoning110122China
| | - Chaoyong Yang
- Department of Chemical BiologyCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China
| | - Xiujie Sun
- Department of Obstetrics and GynecologySchool of MedicineXiang'an Hospital of Xiamen UniversityXiamen UniversityXiamen361102China
| | - Taifeng Zhou
- Department of Spine SurgeryGuangdong Provincial Key Laboratory of Orthopedics and TraumatologyThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhou510080China
| | - Peiqiang Su
- Department of Spine SurgeryGuangdong Provincial Key Laboratory of Orthopedics and TraumatologyThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhou510080China
| | - Na Li
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
| | - Matthew B. Greenblatt
- Department of Pathology and Laboratory MedicineWeill Cornell Medical CollegeNew YorkNY10065USA
- Research DivisionHospital for Special SurgeryNew YorkNY10065USA
| | - Rongqin Ke
- School of Medicine and School of Biomedical SciencesHuaqiao UniversityQuanzhou362000China
| | - Jianming Huang
- Department of OrthopedicsChengong Hospital (the 73th Group Military Hospital of People's Liberation Army) affiliated to Xiamen UniversityXiamen361000China
| | - Zhe‐Sheng Chen
- College of Pharmacy and Health SciencesSt. John's UniversityNew YorkNY11439USA
| | - Ren Xu
- The First Affiliated Hospital of Xiamen University‐ICMRS Collaborating Center for Skeletal Stem CellsState Key Laboratory of Cellular Stress BiologyFaculty of Medicine and Life SciencesSchool of MedicineXiamen UniversityXiamen361102China
- Xiamen Key Laboratory of Regeneration MedicineFujian Provincial Key Laboratory of Organ and Tissue RegenerationSchool of MedicineXiamen UniversityXiamen361102China
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Ilic J, Koelbl C, Simon F, Wußmann M, Ebert R, Trivanovic D, Herrmann M. Liquid Overlay and Collagen-Based Three-Dimensional Models for In Vitro Investigation of Multiple Myeloma. Tissue Eng Part C Methods 2024; 30:193-205. [PMID: 38545771 DOI: 10.1089/ten.tec.2023.0374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024] Open
Abstract
Multiple myeloma (MM) clones reside in the bone marrow (BM), which plays a role in its survival and development. The interactions between MM and their neighboring mesenchymal stromal cells (MSCs) have been shown to promote MM growth and drug resistance. However, those interactions are often missing or misrepresented in traditional two-dimensional (2D) culture models. Application of novel three-dimensional (3D) models might recapitulate the BM niche more precisely, which will offer new insights into MM progression and survival. Here, we aimed to establish two 3D models, based on MSC spheroids and collagen droplets incorporating both MM cells and MSCs with the goal of replicating the native myeloma context of the BM niche. This approach revealed that although MSCs can spontaneously assemble spheroids with altered metabolic traits, MSC spheroid culture does not support the integration of MM cells. On the contrary, collagen-droplet culture supported the growth of both cell types. In collagen, MSC proliferation was reduced, with the correlating decrease in ATP production and Ki-67 expression, which might resemble in vivo conditions, rather than 2D abundance of nutrients and space. MSCs and MMs were distributed homogenously throughout the collagen droplet, with an apparent CXCL12 expression in MSCs. In addition, the response of MM cells to bortezomib was substantially reduced in collagen, indicating the importance of 3D culture in the investigation of myeloma cell behavior, as drug resistance is one of the most pertinent issues in cancer therapy.
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Affiliation(s)
- Jovana Ilic
- IZKF Group Tissue Regeneration in Musculoskeletal Diseases, University Hospital Wurzburg, Wuerzburg, Germany
- Bernhard-Heine-Centrum for Locomotion Research, Julius-Maximilians-Universitat Wurzburg, Wuerzburg, Germany
| | - Christoph Koelbl
- IZKF Group Tissue Regeneration in Musculoskeletal Diseases, University Hospital Wurzburg, Wuerzburg, Germany
- Bernhard-Heine-Centrum for Locomotion Research, Julius-Maximilians-Universitat Wurzburg, Wuerzburg, Germany
| | - Friederike Simon
- IZKF Group Tissue Regeneration in Musculoskeletal Diseases, University Hospital Wurzburg, Wuerzburg, Germany
- Bernhard-Heine-Centrum for Locomotion Research, Julius-Maximilians-Universitat Wurzburg, Wuerzburg, Germany
| | - Maximiliane Wußmann
- Translational Center for Regenerative Therapies TLZ-RT, Fraunhofer Institute for Silicate Research ISC, Wuerzburg, Germany
| | - Regina Ebert
- Bernhard-Heine-Centrum for Locomotion Research, Julius-Maximilians-Universitat Wurzburg, Wuerzburg, Germany
| | - Drenka Trivanovic
- IZKF Group Tissue Regeneration in Musculoskeletal Diseases, University Hospital Wurzburg, Wuerzburg, Germany
- Bernhard-Heine-Centrum for Locomotion Research, Julius-Maximilians-Universitat Wurzburg, Wuerzburg, Germany
- Drenka Trivanovic to Institute for Medical Research, Group for Hematology and Stem Cells, University of Belgrade, Beograd, Serbia
| | - Marietta Herrmann
- IZKF Group Tissue Regeneration in Musculoskeletal Diseases, University Hospital Wurzburg, Wuerzburg, Germany
- Bernhard-Heine-Centrum for Locomotion Research, Julius-Maximilians-Universitat Wurzburg, Wuerzburg, Germany
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Alotaibi BS, Abdel-Rahman Mohamed A, Abd-Elhakim YM, Noreldin AE, Elhamouly M, Khamis T, El-Far AH, Alosaimi ME, Dahran N, Alqahtani LS, Nicotra M, El-Gamal M, Di Cerbo A. Exploring the link between pyrethroids exposure and dopaminergic degeneration through morphometric, immunofluorescence, and in-silico approaches: the therapeutic role of chitosan-encapsulated curcumin nanoparticles. Front Pharmacol 2024; 15:1388784. [PMID: 38751787 PMCID: PMC11094265 DOI: 10.3389/fphar.2024.1388784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/11/2024] [Indexed: 05/18/2024] Open
Abstract
Introduction: The synthetic pyrethroid derivative fenpropathrin (FNE), a commonly used insecticide, has been associated with various toxic effects in mammals, particularly neurotoxicity. The study addressed the hallmarks of the pathophysiology of Parkinson's disease upon oral exposure to fenpropathrin (FNE), mainly the alteration of dopaminergic markers, oxidative stress, and molecular docking in rat models. In addition, the protective effect of curcumin-encapsulated chitosan nanoparticles (CRM-Chs-NPs) was also assessed. Methods: In a 60-day trial, 40 male Sprague Dawley rats were divided into 4 groups: Control, CRM-Chs-NPs (curcumin-encapsulated chitosan nanoparticles), FNE (15 mg/kg bw), and FNE + CRM-Chs-NPs. Results: FNE exposure induced reactive oxygen species generation, ATP production disruption, activation of inflammatory and apoptotic pathways, mitochondrial function and dynamics impairment, neurotransmitter level perturbation, and mitophagy promotion in rat brains. Molecular docking analysis revealed that FNE interacts with key binding sites of dopamine synthesis and transport proteins. On the other hand, CRM-Chs-NPs mitigated FNE's toxic effects by enhancing mitochondrial dynamics, antioxidant activity, and ATP production and promoting anti-inflammatory and antiapoptotic responses. Conclusion: In summary, FNE appears to induce dopaminergic degeneration through various mechanisms, and CRM-Chs-NPs emerged as a potential therapeutic intervention for protecting the nervous tissue microenvironment.
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Affiliation(s)
- Badriyah S. Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Amany Abdel-Rahman Mohamed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Yasmina M. Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Ahmed E. Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Moustafa Elhamouly
- Cytology and Histology Department, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Tarek Khamis
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
- Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Ali H. El-Far
- Department of Biochemistry, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Manal E. Alosaimi
- Department of Basic Health Sciences, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Naief Dahran
- Department of Anatomy, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia
| | - Leena S. Alqahtani
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Mario Nicotra
- School of Biosciences and Veterinary Medicine, University of Camerino, Matelica, Italy
| | - Mohamed El-Gamal
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Department of Biological Sciences, Faculty of Science, New Mansoura University, New Mansoura City, Egypt
| | - Alessandro Di Cerbo
- School of Biosciences and Veterinary Medicine, University of Camerino, Matelica, Italy
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Imran M, Islam Tiwana M, Mohsan MM, Alghamdi NS, Akram MU. Transformer-based framework for multi-class segmentation of skin cancer from histopathology images. Front Med (Lausanne) 2024; 11:1380405. [PMID: 38741771 PMCID: PMC11089103 DOI: 10.3389/fmed.2024.1380405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 04/01/2024] [Indexed: 05/16/2024] Open
Abstract
Introduction Non-melanoma skin cancer comprising Basal cell carcinoma (BCC), Squamous cell carcinoma (SCC), and Intraepidermal carcinoma (IEC) has the highest incidence rate among skin cancers. Intelligent decision support systems may address the issue of the limited number of subject experts and help in mitigating the parity of health services between urban centers and remote areas. Method In this research, we propose a transformer-based model for the segmentation of histopathology images not only into inflammation and cancers such as BCC, SCC, and IEC but also to identify skin tissues and boundaries that are important in decision-making. Accurate segmentation of these tissue types will eventually lead to accurate detection and classification of non-melanoma skin cancer. The segmentation according to tissue types and their visual representation before classification enhances the trust of pathologists and doctors being relatable to how most pathologists approach this problem. The visualization of the confidence of the model in its prediction through uncertainty maps is also what distinguishes this study from most deep learning methods. Results The evaluation of proposed system is carried out using publicly available dataset. The application of our proposed segmentation system demonstrated good performance with an F1 score of 0.908, mean intersection over union (mIoU) of 0.653, and average accuracy of 83.1%, advocating that the system can be used as a decision support system successfully and has the potential of subsequently maturing into a fully automated system. Discussion This study is an attempt to automate the segmentation of the most occurring non-melanoma skin cancer using a transformer-based deep learning technique applied to histopathology skin images. Highly accurate segmentation and visual representation of histopathology images according to tissue types by the proposed system implies that the system can be used for skin-related routine pathology tasks including cancer and other anomaly detection, their classification, and measurement of surgical margins in the case of cancer cases.
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Affiliation(s)
- Muhammad Imran
- Department of Mechatronics Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Mohsin Islam Tiwana
- Department of Mechatronics Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Mashood Mohammad Mohsan
- Department of Computer and Software Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Norah Saleh Alghamdi
- Department of Computer Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Muhammad Usman Akram
- Department of Computer and Software Engineering, National University of Sciences and Technology, Islamabad, Pakistan
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Pirmoradi Z, Nakhaie M, Ranjbar H, Kalantar-Neyestanaki D, Kohlmeier KA, Asadi-Shekaari M, Hassanshahi A, Shabani M. Resveratrol and 1,25-dihydroxyvitamin D decrease Lingo-1 levels, and improve behavior in harmaline-induced Essential tremor, suggesting potential therapeutic benefits. Sci Rep 2024; 14:9864. [PMID: 38684734 PMCID: PMC11058818 DOI: 10.1038/s41598-024-60518-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 04/24/2024] [Indexed: 05/02/2024] Open
Abstract
Essential tremor (ET) is a neurological disease that impairs motor and cognitive functioning. A variant of the Lingo-1 genetic locus is associated with a heightened ET risk, and increased expression of cerebellar Lingo-1. Lingo-1 has been associated with neurodegenerative processes; however, neuroprotection from ET-associated degeneration can be conferred by the protein Sirt1. Sirt1 activity can be promoted by Resveratrol (Res) and 1,25-dihydroxyvitamin D3 (VitD3), and thus these factors may exert neuroprotective properties through a Sirt1 mechanism. As Res and VitD3 are linked to Sirt1, enhancing Sirt1 could counteract the negative effects of increased Lingo-1. Therefore, we hypothesized that a combination of Res-VitD3 in a harmaline injection model of ET would modulate Sirt1 and Lingo-1 levels. As expected, harmaline exposure (10 mg/kg/every other day; i.p.) impaired motor coordination, enhanced tremors, rearing, and cognitive dysfunction. When Res (5 mg/kg/day; i.p.) and VitD3 (0.1 mg/kg/day; i.p.) were given to adult rats (n = 8 per group) an hour before harmaline, tremor severity, rearing, and memory impairment were reduced. Individual treatment with Res and VitD3 decreased Lingo-1 gene expression levels in qPCR assays. Co-treatment with Res and VitD3 increased and decreased Sirt1 and Lingo-1 gene expression levels, respectively, and in some cases, beneficial effects on behavior were noted, which were not seen when Res or VitD3 were individually applied. Taken together, our study found that Res and VitD3 improved locomotor and cognitive deficits, modulated Sirt1 and Lingo-1. Therefore, we would recommend co-treatment of VitD3 and Res to leverage complementary effects for the management of ET symptoms.
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Affiliation(s)
- Zeynab Pirmoradi
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, 76198-13159, Iran
| | - Mohsen Nakhaie
- Gastroenterology and Hepatology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Hoda Ranjbar
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, 76198-13159, Iran
| | | | - Kristi A Kohlmeier
- Department of Drug Design and Pharmacology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Majid Asadi-Shekaari
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, 76198-13159, Iran
| | - Amin Hassanshahi
- Department of Physiology, Medical School, Bam University of Medical Sciences, Bam, Iran
| | - Mohammad Shabani
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, 76198-13159, Iran.
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31
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Zhou P, Zhang Y, Xu K, Liu Y, Huang J, Yao Q, Chen X, Zhou L. Uncoupling Protein 2 Alleviates Myocardial Ischemia/Reperfusion Injury by Inhibiting Cardiomyocyte Ferroptosis. J Vasc Res 2024; 61:109-121. [PMID: 38615660 PMCID: PMC11151978 DOI: 10.1159/000537925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 02/16/2024] [Indexed: 04/16/2024] Open
Abstract
INTRODUCTION Following our recent finding that Ucp2 knockout promotes ferroptosis, we aimed to examine whether UCP2 alleviates myocardial ischemia/reperfusion injury (MI/RI) by inhibiting ferroptosis. METHODS The left anterior descending coronary arteries of wild-type and Ucp2-/- C57BL/6 mice were ligated for 30 min and reperfused for 2 h to establish an MI/RI model. The effects of UCP2 on ferroptosis and MI/RI were determined by echocardiography, 2,3,5-triphenylttrazolium chloride staining, hematoxylin-eosin staining, Masson's trichrome staining, Sirius red staining, and analysis of myocardial injury markers and ferroptosis indicators. Ferrostatin-1 (Fer-1) and erastin (Era) were used to investigate whether UCP2 alleviated MI/RI by inhibiting ferroptosis and the molecular mechanism. RESULTS UCP2 was upregulated in the MI/RI model in WT mice. Deletion of Ucp2 exacerbated ferroptosis, altered the expression levels of multiple ferroptosis-related genes, and significantly exacerbated MI/RI. Knockout of Ucp2 promoted ferroptosis induced by Era and inhibited the antiferroptotic effects of Fer-1. Knockout of Ucp2 activated the p53/TfR1 pathway to exacerbate ferroptosis. CONCLUSION Our results showed that UCP2 inhibited ferroptosis in MI/RI, which might be related to regulation of the p53/TfR1 pathway.
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Affiliation(s)
- Peiting Zhou
- College of Medicine, Southwest Jiaotong University, Chengdu, China,
- Medical Engineering Department, General Hospital of Western Theater Command, Chengdu, China,
| | - Yaolei Zhang
- Laboratory of Basic Medicine, General Hospital of Western Theater Command, Chengdu, China
| | - Kewei Xu
- Medical Engineering Department, General Hospital of Western Theater Command, Chengdu, China
| | - Yunchuan Liu
- Laboratory of Basic Medicine, General Hospital of Western Theater Command, Chengdu, China
| | - Jing Huang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Quanzhou Yao
- College of Medicine, Southwest Jiaotong University, Chengdu, China
| | - Xin Chen
- Department of Laboratory Medicine, The Third People's Hospital of Chengdu/Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Longfu Zhou
- College of Medicine, Southwest Jiaotong University, Chengdu, China
- Medical Engineering Department, General Hospital of Western Theater Command, Chengdu, China
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32
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Ghosh S, Sen S, Jash M, Ghosh S, Jana A, Roy R, Mukherjee N, Mukherjee D, Sarkar J, Ghosh S. Synergistic Augmentation of Beta-Lactams: Exploring Quinoline-Derived Amphipathic Small Molecules as Antimicrobial Potentiators against Methicillin-Resistant Staphylococcus aureus. ACS Infect Dis 2024; 10:1267-1285. [PMID: 38442370 DOI: 10.1021/acsinfecdis.3c00696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
The escalation of bacterial resistance against existing therapeutic antimicrobials has reached a critical peak, leading to the rapid emergence of multidrug-resistant strains. Stringent pathways in novel drug discovery hinder our progress in this survival race. A promising approach to combat emerging antibiotic resistance involves enhancing conventional ineffective antimicrobials using low-toxicity small molecule adjuvants. Recent research interest lies in weak membrane-perturbing agents with unique cyclic hydrophobic components, addressing a significant gap in antimicrobial drug exploration. Our study demonstrates that quinoline-based amphipathic small molecules, SG-B-52 and SG-B-22, significantly reduce MICs of selected beta-lactam antibiotics (ampicillin and amoxicillin) against lethal methicillin-resistant Staphylococcus aureus (MRSA). Mechanistically, membrane perturbation, depolarization, and ROS generation drive cellular lysis and death. These molecules display minimal in vitro and in vivo toxicity, showcased through hemolysis assays, cell cytotoxicity analysis, and studies on albino Wistar rats. SG-B-52 exhibits impressive biofilm-clearing abilities against MRSA biofilms, proposing a strategy to enhance beta-lactam antibiosis and encouraging the development of potent antimicrobial potentiators.
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Affiliation(s)
- Surojit Ghosh
- Smart Healthcare Department, Interdisciplinary Research Platform, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Samya Sen
- iHUB Drishti Foundation, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Moumita Jash
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Satyajit Ghosh
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Aniket Jana
- Smart Healthcare Department, Interdisciplinary Research Platform, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Rajsekhar Roy
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Nabanita Mukherjee
- Smart Healthcare Department, Interdisciplinary Research Platform, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Dipro Mukherjee
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
| | - Jayita Sarkar
- Centre for Research and Development of Scientific Instruments (CRDSI), Indian Institute of Technology, Jodhpur, Rajasthan, 342030, India
| | - Surajit Ghosh
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
- Smart Healthcare Department, Interdisciplinary Research Platform, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
- iHUB Drishti Foundation, Indian Institute of Technology, Jodhpur, Rajasthan 342030, India
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Dequiedt L, Forjaz A, Lo JO, McCarty O, Wu PH, Rosenberg A, Wirtz D, Kiemen A. Three-dimensional reconstruction of fetal rhesus macaque kidneys at single-cell resolution reveals complex inter-relation of structures. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.12.07.570622. [PMID: 38106004 PMCID: PMC10723390 DOI: 10.1101/2023.12.07.570622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Kidneys are among the most structurally complex organs in the body. Their architecture is critical to ensure proper function and is often impacted by diseases such as diabetes and hypertension. Understanding the spatial interplay between the different structures of the nephron and renal vasculature is crucial. Recent efforts have demonstrated the value of three-dimensional (3D) imaging in revealing new insights into the various components of the kidney; however, these studies used antibodies or autofluorescence to detect structures and so were limited in their ability to compare the many subtle structures of the kidney at once. Here, through 3D reconstruction of fetal rhesus macaque kidneys at cellular resolution, we demonstrate the power of deep learning in exhaustively labelling seventeen microstructures of the kidney. Using these tissue maps, we interrogate the spatial distribution and spatial correlation of the glomeruli, renal arteries, and the nephron. This work demonstrates the power of deep learning applied to 3D tissue images to improve our ability to compare many microanatomical structures at once, paving the way for further works investigating renal pathologies.
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Affiliation(s)
- Lucie Dequiedt
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University
| | - André Forjaz
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University
| | - Jamie O Lo
- Department of Obstetrics and Gynecology, Oregon Health and Sciences University
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center
| | - Owen McCarty
- Department of Biomedical Engineering, Oregon Health and Sciences University
| | - Pei-Hsun Wu
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University
- Institute for NanoBioTechnology, Johns Hopkins University
| | - Avi Rosenberg
- Department of Pathology, Johns Hopkins School of Medicine
| | - Denis Wirtz
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University
- Institute for NanoBioTechnology, Johns Hopkins University
- Department of Pathology, Johns Hopkins School of Medicine
- Department of Oncology, Johns Hopkins School of Medicine
| | - Ashley Kiemen
- Institute for NanoBioTechnology, Johns Hopkins University
- Department of Pathology, Johns Hopkins School of Medicine
- Department of Oncology, Johns Hopkins School of Medicine
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Yao J, Sun T, Zheng S, Ma J, Zeng Q, Liu K, Zhang W, Yu Y. The protective effect of teprenone in TNBS-induced ulcerative colitis rats by modulating the gut microbiota and reducing inflammatory response. Immunopharmacol Immunotoxicol 2024; 46:255-263. [PMID: 38252282 DOI: 10.1080/08923973.2024.2308252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
OBJECTIVE Ulcerative colitis (UC), a chronic and refractory nonspecific inflammatory bowel disease, affects millions of patients worldwide and increases the risk of colorectal cancer. Teprenone is an acylic polyisoprenoid that exerts anti-inflammatory properties in rat models of peptic ulcer disease. This in vitro and in vivo study was designed to investigate the effects of teprenone on UC and to explore the underlying mechanisms. METHODS Human intestinal epithelial cells (Caco-2 cells) serve as the in vitro experimental model. Lipopolysaccharide (LPS, 1 μg/mL) was employed to stimulate the production of pro-inflammatory cytokines (interleukin [IL]-6, IL-1β, and tumor necrosis factor [TNF]-α), Toll-like receptor-4 (TLR4), MyD88 expression, and NF-κB activation. A trinitrobenzene sulfonic acid (TNBS)-induced chronic UC rat model was employed for the in vivo assay. RESULTS Pro-inflammatory cytokine stimulation by LPS in Caco-2 cells was inhibited by teprenone at 40 μg/mL through the TLR4/NF-κB signaling pathway. Teprenone attenuated TNBS-induced UC, decreased myeloperoxidase and malondialdehyde, induced TLR4 expression and NF-κB activation, and increased glutathione and zonula occludens-1 level in the rat colonic tissue. Moreover, Fusobacterium, Escherichia coli, Porphyromonas gingivalis elevation, and Mogibacterium timidum decline in UC rats were inhibited by teprenone. CONCLUSION Based on our results, the protective effects of teprenone for UC may be related to its ability to modulate the gut microbiota and reduce the inflammatory response.
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Affiliation(s)
- Jianfeng Yao
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Tao Sun
- Department of Endoscopy, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Songbai Zheng
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Jianxia Ma
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Qinglian Zeng
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Kangwei Liu
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Wei Zhang
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Yang Yu
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
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Samadder A, Bhattacharjee B, Dey S, Chakrovorty A, Dey R, Sow P, Tarafdar D, Biswas M, Nandi S. Enhanced Drug Carriage Efficiency of Curcumin-Loaded PLGA Nanoparticles in Combating Diabetic Nephropathy via Mitigation of Renal Apoptosis. J Pharmacopuncture 2024; 27:1-13. [PMID: 38560336 PMCID: PMC10978441 DOI: 10.3831/kpi.2024.27.1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/23/2023] [Accepted: 12/18/2023] [Indexed: 04/04/2024] Open
Abstract
Objectives The Curcuma-derived diferuloylmethane compound CUR, loaded on Poly (lactide-co-glycolic) acid (PLGA) nanoparticles was utilized to combat DN-induced renal apoptosis by selectively targeting and modulating Bcl2. Methods Upon in silico molecular docking and screening study CUR was selected as the core phytocompound for nanoparticle formulation. PLGA-nano-encapsulated-curcumin (NCUR) were synthesized following standard solvent displacement method. The NCUR were characterized for shape, size and other physico-chemical properties by Atomic Force Microscopy (AFM), Dynamic Light Scattering (DLS) and Fourier-Transform Infrared (FTIR) Spectroscopy studies. For in vivo validation of nephro-protective effects, Mus musculus were pre-treated with CUR at a dose of 50 mg/kg b.w. and NCUR at a dose of 25 mg/kg b.w. (dose 1), 12.5 mg/kg b.w (dose 2) followed by alloxan administration (100 mg/kg b.w) and serum glucose levels, histopathology and immunofluorescence study were conducted. Results The in silico study revealed a strong affinity of CUR towards Bcl2 (dock score -10.94 Kcal/mol). The synthesized NCUR were of even shape, devoid of cracks and holes with mean size of ~80 nm having -7.53 mV zeta potential. Dose 1 efficiently improved serum glucose levels, tissue-specific expression of Bcl2 and reduced glomerular space and glomerular sclerosis in comparison to hyperglycaemic group. Conclusion This study essentially validates the potential of NCUR to inhibit DN by reducing blood glucose level and mitigating glomerular apoptosis by selectively promoting Bcl2 protein expression in kidney tissue.
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Affiliation(s)
- Asmita Samadder
- Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani, India
| | - Banani Bhattacharjee
- Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani, India
| | - Sudatta Dey
- Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani, India
| | - Arnob Chakrovorty
- Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani, India
| | - Rishita Dey
- Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani, India
- Department of Pharmaceutical Chemistry, Global Institute of Pharmaceutical Education and Research, Veer Madho Singh Bhandari Uttarakhand Technical University, Kashipur, India
| | - Priyanka Sow
- Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani, India
| | - Debojyoti Tarafdar
- Department of Chemistry, Chanchal College, Affiliated to The University of Gour Banga, West Bengal, India
| | - Maharaj Biswas
- Endocrinology and Reproductive Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani, India
| | - Sisir Nandi
- Department of Pharmaceutical Chemistry, Global Institute of Pharmaceutical Education and Research, Veer Madho Singh Bhandari Uttarakhand Technical University, Kashipur, India
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Kotorová K, Končeková J, Gottlieb M, Bona M, Bonová P. Obesity as a Limiting Factor for Remote Ischemic Postconditioning-Mediated Neuroprotection after Stroke. J Obes Metab Syndr 2024; 33:76-87. [PMID: 38049179 PMCID: PMC11000512 DOI: 10.7570/jomes23038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/09/2023] [Accepted: 09/21/2023] [Indexed: 12/06/2023] Open
Abstract
Background Remote ischemic postconditioning (RIPostC) may protect the brain from ischemia/reperfusion (I/R) injury. The association between RIPostC and obesity has not yet been extensively studied. Methods Twelve-week-old male Zucker diabetic fatty (ZDF; n=68) and Zucker diabetic lean (ZDL; n=51) rats were subjected to focal cerebral ischemia for 90 minutes, followed by 24 hours of reperfusion. RIPostC was performed with 5-minute I/R cycles using a tourniquet on the right hind limb. Results The results showed a negative association between obesity and neurological impairment in ischemic animals. We observed a 70% greater infarct size in ZDF rats compared with their lean counterparts, as evaluated by 2,3,5-triphenyltetrazolium chloride staining. To measure the total fragmented DNA in peripheral lymphocytes, comet assay was performed. Obese rats exhibited higher levels of DNA damage (by approximately 135%) in peripheral blood lymphocytes even before the induction of stroke. RIPostC did not attenuate oxidative stress in the blood in obese rats subjected to ischemia. Focal cerebral ischemia increased core and penumbra tissue glutamate release in the brain and decreased it in the blood of ischemic ZDL rats, and these changes improved following RIPostC treatment. However, changes in blood and tissue glutamate content were not detected in ischemic ZDF rats or after RIPostC intervention. Conclusion Our findings suggest that obese animals respond more severely to ischemia-reperfusion brain injury. However, obese animals did not achieve neuroprotective benefits of RIPostC treatment.
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Affiliation(s)
- Klaudia Kotorová
- Institute of Neurobiology, Biomedical Research Center of the Slovak Academy of Sciences, Kosice, Slovak Republic
| | - Jana Končeková
- Institute of Neurobiology, Biomedical Research Center of the Slovak Academy of Sciences, Kosice, Slovak Republic
| | - Miroslav Gottlieb
- Institute of Neurobiology, Biomedical Research Center of the Slovak Academy of Sciences, Kosice, Slovak Republic
| | - Martin Bona
- Department of Medical Physiology, Faculty of Medicine, University of Pavol Jozef Safarik, Kosice, Slovak Republic
| | - Petra Bonová
- Institute of Neurobiology, Biomedical Research Center of the Slovak Academy of Sciences, Kosice, Slovak Republic
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Forjaz A, Vaz E, Romero VM, Joshi S, Braxton AM, Jiang AC, Fujikura K, Cornish T, Hong SM, Hruban RH, Wu PH, Wood LD, Kiemen AL, Wirtz D. Three-dimensional assessments are necessary to determine the true, spatially-resolved composition of tissues. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.12.04.569986. [PMID: 38106231 PMCID: PMC10723352 DOI: 10.1101/2023.12.04.569986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Methods for spatially resolved cellular profiling using thinly cut sections have enabled in-depth quantitative tissue mapping to study inter-sample and intra-sample differences in normal human anatomy and disease onset and progression. These methods often profile extremely limited regions, which may impact the evaluation of heterogeneity due to tissue sub-sampling. Here, we applied CODA, a deep learning-based tissue mapping platform, to reconstruct the three-dimensional (3D) microanatomy of grossly normal and cancer-containing human pancreas biospecimens obtained from individuals who underwent pancreatic resection. To compare inter- and intra-sample heterogeneity, we assessed bulk and spatially resolved tissue composition in a cohort of two-dimensional (2D) whole slide images (WSIs) and a cohort of thick slabs of pancreas tissue that were digitally reconstructed in 3D from serial sections. To demonstrate the marked under sampling of 2D assessments, we simulated the number of WSIs and tissue microarrays (TMAs) necessary to represent the compositional heterogeneity of 3D data within 10% error to reveal that tens of WSIs and hundreds of TMA cores are sometimes needed. We show that spatial correlation of different pancreatic structures decay significantly within a span of microns, demonstrating that 2D histological sections may not be representative of their neighboring tissues. In sum, we demonstrate that 3D assessments are necessary to accurately assess tissue composition in normal and abnormal specimens and in order to accurately determine neoplastic content. These results emphasize the importance of intra-sample heterogeneity in tissue mapping efforts.
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Affiliation(s)
- André Forjaz
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
| | - Eduarda Vaz
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
| | - Valentina Matos Romero
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
| | - Saurabh Joshi
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
| | - Alicia M. Braxton
- Department of Comparative Medicine, Medical University of South Carolina, Charleston, SC
| | - Ann C. Jiang
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD
| | - Kohei Fujikura
- Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Toby Cornish
- Department of Pathology, University of Colorado School of Medicine, Aurora, CO
| | - Seung-Mo Hong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ralph H. Hruban
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Oncology, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, MD
| | - Pei-Hsun Wu
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
| | - Laura D. Wood
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Oncology, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, MD
| | - Ashley L. Kiemen
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Oncology, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
| | - Denis Wirtz
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Oncology, Johns Hopkins School of Medicine, Johns Hopkins University, Baltimore, MD
- The Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD
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Pucci Molineris M, Schibert F, Lima M, Accialini P, Cané L, Pelinsky P, Farina M, Herlax V. Induction of human-fetal-membrane remodeling in-vitro by the alpha hemolysin of Escherichia coli. Placenta 2024; 148:59-68. [PMID: 38401207 DOI: 10.1016/j.placenta.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 12/31/2023] [Accepted: 02/01/2024] [Indexed: 02/26/2024]
Abstract
INTRODUCTION Almost 80% of urinary tract infections during pregnancy are caused by uropathogenic strains of Escherichia coli. Alpha-hemolysin, toxin secreted by them, has a fundamental role in this pathology development. Considering that urinary tract infections are related with premature rupture of fetal membranes, we proposed to evaluate the effects that alpha-hemolysin induces on human-fetal-membranes. METHODS Thirteen fetal membranes obtained from elective cesarean sections (>37 weeks) were mounted in a transwell-device generating two independent chambers. To mimic an ascendant-urinary-tract infection, membranes were incubated with different concentrations of pure alpha-hemolysin from the choriodecidual side during 24h. Extensive histological analyses were performed and transepithelial electrical-resistance were determined. Cell viability, metalloproteinase activity and cyclooxygenase-2- gene expression was estimated by lactate-dehydrogenase-release assay, zymography and RT-qPCR, respectively. Finally, four fetal membranes were treated with hemolysin preincubated with polyclonal anti-hemolysin antibodies. Cell viability and metalloproteinase activity were monitored. RESULTS After 24 h of treatment, fetal membranes evidenced a structural damage and a decrease in membrane resistance that progressed as the concentration of alpha hemolysin increased. While the amniotic-epithelial-layer remained practically unaffected, the chorion cells manifested an increase in vacuolization and necrosis. In addition, the extracellular matrix exhibited collagen-fiber disorganization, a marked decrease in fiber content, and became thicker in presence of the toxin. Cyclooxigenase-2 expression and metalloproteinase activity were also higher in the treated groups than in untreated ones. Finally, a preincubation of hemolysin with specific antibodies prevented the cytotoxicity on the chorion cells and the increase in metalloproteinase activity. DISCUSSION Hemolysin induces structural and molecular changes associated with the remodeling of human-fetal-membranes in-vitro.
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Affiliation(s)
- Melisa Pucci Molineris
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Av. 60 &120, La Plata, Buenos Aires, Argentina.
| | - Florencia Schibert
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Av. 60 &120, La Plata, Buenos Aires, Argentina
| | - María Lima
- Cátedra B de Patología, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Av. 60 &120, La Plata, Buenos Aires, Argentina
| | - Paula Accialini
- Laboratorio de Fisiopatología Placentaria, CEFyBO -Facultad de Medicina, Universidad de Buenos Aires, Paraguay N° 2155, Ciudad Autónoma de Buenos Aires, Argentina
| | - Lucía Cané
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Av. 60 &120, La Plata, Buenos Aires, Argentina
| | - Pablo Pelinsky
- Servicio de Ginecología y Obstetricia, Hospital Español de La Plata, 9 N° 175, La Plata, Buenos Aires, Argentina
| | - Mariana Farina
- Laboratorio de Fisiopatología Placentaria, CEFyBO -Facultad de Medicina, Universidad de Buenos Aires, Paraguay N° 2155, Ciudad Autónoma de Buenos Aires, Argentina
| | - Vanesa Herlax
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Av. 60 &120, La Plata, Buenos Aires, Argentina
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Nitschke BM, Beltran FO, Hahn MS, Grunlan MA. Trends in bioactivity: inducing and detecting mineralization of regenerative polymeric scaffolds. J Mater Chem B 2024; 12:2720-2736. [PMID: 38410921 PMCID: PMC10935659 DOI: 10.1039/d3tb02674d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/14/2024] [Indexed: 02/28/2024]
Abstract
Due to limitations of biological and alloplastic grafts, regenerative engineering has emerged as a promising alternative to treat bone defects. Bioactive polymeric scaffolds are an integral part of such an approach. Bioactivity importantly induces hydroxyapatite mineralization that promotes osteoinductivity and osseointegration with surrounding bone tissue. Strategies to confer bioactivity to polymeric scaffolds utilize bioceramic fillers, coatings and surface treatments, and additives. These approaches can also favorably impact mechanical and degradation properties. A variety of fabrication methods are utilized to prepare scaffolds with requisite morphological features. The bioactivity of scaffolds may be evaluated with a broad set of techniques, including in vitro (acellular and cellular) and in vivo methods. Herein, we highlight contemporary and emerging approaches to prepare and assess scaffold bioactivity, as well as existing challenges.
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Affiliation(s)
- Brandon M Nitschke
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Felipe O Beltran
- Department of Materials Science & Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Mariah S Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Melissa A Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA.
- Department of Materials Science & Engineering, Texas A&M University, College Station, TX 77843, USA
- Department of Chemistry, Texas A&M University, College Station, TX 77843, USA
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Amini A, Esmaeili F, Golpich M. Possible role of lncRNAs in amelioration of Parkinson's disease symptoms by transplantation of dopaminergic cells. NPJ Parkinsons Dis 2024; 10:56. [PMID: 38472261 PMCID: PMC10933336 DOI: 10.1038/s41531-024-00661-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Long non-coding RNAs (lncRNAs) are biomarkers for diagnosis and treatment of Parkinson's disease (PD). Since dopaminergic cell transplantation is a clinical method to treat PD, this study investigated the effects of dopaminergic cell therapy on the expression of some lncRNAs and genes related to PD. In this study, Twenty-eight rats were randomly assigned to four experimental groups. The control group (Sal group) received saline injections. The Par group was a PD rat model with 6-hydroxydopamine (6-OHDA) injection in right striatum (ST). PD animals were transplanted by undifferentiated P19 stem cells (Par-E group), and P19-derived dopaminergic cells (Par-N group). Cell transplant effects were evaluated using behavioral tests (cylinder, open field, and rotarod tests), and histological methods (H&E and Nissl staining, and immunohistochemistry). Moreover, the expression of lncRNAs MALAT1, MEG3, and SNHG1, alongside specific neuronal (synaptophysin) and dopaminergic (tyrosine hydroxylase) markers was evaluated by qRT-PCR. Behavioral and histopathological examinations revealed that cell transplantation partially compensated dopaminergic cell degeneration in ST and substantia nigra (SN) of PD rats. The expression of MALAT1, SNHG1, and MEG3 was decreased in the ST of the Par group, while MEG3 and SNHG1 gene expression was increased in PBMC relative to the Sal group. In PBMC of the Par-N group, all three lncRNAs showed a reduction in their expression. Conversely, MALAT1 and SNHG1 expression was increased in ST tissue, while MEG3 gene expression was decreased compared to the Sal group. In conclusion, dopaminergic cell transplantation could change the lncRNAs expression. Furthermore, it partially improves symptoms in PD rats.
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Affiliation(s)
- A Amini
- Department of Plant and Animal Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - F Esmaeili
- Department of Plant and Animal Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
| | - M Golpich
- Department of Plant and Animal Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
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Zhao C, Qin P, Li S, Chen Z, Wang T, Liang Q, He W, Peng Z, Yang Y, Peng Z, Li Y. Exploring Aeromonas dhakensis in Aldabra giant tortoises: a debut report and genetic characterization. BMC Microbiol 2024; 24:76. [PMID: 38454361 PMCID: PMC10921707 DOI: 10.1186/s12866-024-03203-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/23/2024] [Indexed: 03/09/2024] Open
Abstract
Aeromonas dhakensis (A. dhakensis) is becoming an emerging pathogen worldwide, with an increasingly significant role in animals and human health. It is a ubiquitous bacteria found in terrestrial and aquatic milieus. However, there have been few reports of reptile infections. In this study, a bacterial strain isolated from a dead Aldabra giant tortoise was identified as A. dhakensis HN-1 through clinical observation, matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF/MS), and gene sequencing analysis. Subsequently, to evaluate its pathogenicity, the detection of virulence genes and mice infection experiments were performed. A. dhakensis HN-1 was found to contain seven virulence genes, including alt, ela, lip, act, aerA, fla, and hlyA. Mice infected with A. dhakensis HN-1 exhibited hemorrhage of varying degrees in multiple organs. The half-maximal lethal dose (LD50) value of A. dhakensis HN-1 for mice was estimated to be 2.05 × 107 colony forming units (CFU)/mL. The antimicrobial susceptibility test revealed that A. dhakensis HN-1 was resistant to amoxicillin, penicillin, ampicillin and erythromycin. This is the first report of A. dhakensis in Aldabra giant tortoises, expanding the currently known host spectrum. Our findings emphasize the need for One Health surveillance and extensive research to reduce the spread of A. dhakensis across the environment, humans, and animals.
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Affiliation(s)
- Chenxu Zhao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Panpan Qin
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Shuai Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Zilu Chen
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Tianliang Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Qunchao Liang
- Henan Yinji Jiabao Amusement Park Management Co. LTD, Zhengzhou, 452376, China
| | - Weishi He
- Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, 450001, China
| | - Zeyu Peng
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yurong Yang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China.
| | - Zhifeng Peng
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, 450046, China.
| | - Yongtao Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China.
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Saha I, Ghosh S, Roy S, Basu T, Karmakar P. Facile process of Hibiscusmucilage polymer formulation using Hibiscus rosa-sinensisleaves to treat second-degree burn and excision wounds. Biomed Mater 2024; 19:035003. [PMID: 38387054 DOI: 10.1088/1748-605x/ad2c1d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 02/22/2024] [Indexed: 02/24/2024]
Abstract
Mucilage is a sticky substance found in various plants and microorganisms and is made up of proteins and polysaccharides. Mucilage fromHibiscus rosa sinensisisis a complex polysaccharide traditionally used to treat different skin diseases. In our study, we fabricated mucilage polymer fromHibiscus rosa sinensisleaves and evaluated its potential application in second-degree burns and excision wounds. The physical properties of Hibiscus mucilage (HM) polymer were demonstrated by using Ultraviolet-visible absorption spectroscopy, x-ray diffraction, Fourier transform infrared spectroscopy, dynamic light scattering, Scanning electron microscopy, Brunauer-Emmett-Tellerand, Swelling ratio. The human cell lines WI-38, and HaCaT have been used forin-vitroexperiments like MTT, scratch wound, BrdU, ROS scavenging assays, and western blot analysis. The results of the MTT, scratch-wound, and BrdU assay indicated that the HM polymer is nontoxic in nature and also enhances both the properties of cellular migration and proliferation, respectively. On the other hand, the result of the ROS scavenging assay suggested that HM polymer enhances the antioxidant activity of cells while the western blot analysis designated that the HM polymer treatment caused downregulation of the pro-inflammatory cytokine IFN-γand upregulation of the pAkt (Serine 473) protein, and TGF-β1 signaling pathway. Therefore, allin-vitroexperimental studies recommended that HM polymer is biocompatible and has antioxidant and anti-inflammatory effects. In thein vivoexperiment, second-degree burns and excision wounds were created on the dorsal surface of male BALB/c mice. After the sixth day of HM polymer treatment have developed new tissue, hair follicles, blood vessels,α-SMA, and Collagen type-1 fiber on the burn and excision wound area while the 11th day of HM polymer treatment cured the wound area significantly. Therefore, it could be contemplated that HM polymer is a potential agent for treating different wounds in the near future.
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Affiliation(s)
- Ishita Saha
- Department of Life Science and Biotechnology, Jadavpur University, 188, Raja S.C. Mullick Road, Kolkata, 700032 West Bengal, India
| | - Sourav Ghosh
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741 235 West Bengal, India
| | - Shubham Roy
- School of Science, Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
- Department of Physics, Jadavpur University, 188, Raja S.C. Mullick Road, Kolkata, 700032 West Bengal, India
| | - Tarakdas Basu
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741 235 West Bengal, India
| | - Parimal Karmakar
- Department of Life Science and Biotechnology, Jadavpur University, 188, Raja S.C. Mullick Road, Kolkata, 700032 West Bengal, India
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Salavati H, Pullens P, Debbaut C, Ceelen W. Hydraulic conductivity of human cancer tissue: A hybrid study. Bioeng Transl Med 2024; 9:e10617. [PMID: 38435818 PMCID: PMC10905546 DOI: 10.1002/btm2.10617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/22/2023] [Accepted: 10/15/2023] [Indexed: 03/05/2024] Open
Abstract
Background Elevated tumor tissue interstitial fluid pressure (IFP) is an adverse biomechanical biomarker that predicts poor therapy response and an aggressive phenotype. Advances in functional imaging have opened the prospect of measuring IFP non-invasively. Image-based estimation of the IFP requires knowledge of the tissue hydraulic conductivity (K), a measure for the ease of bulk flow through the interstitium. However, data on the magnitude of K in human cancer tissue are not available. Methods We measured the hydraulic conductivity of tumor tissue using modified Ussing chambers in surgical resection specimens. The effect of the tumor microenvironment (TME) on K was investigated by quantifying the collagen content, cell density, and fibroblast density of the tested samples using quantitative immune histochemistry. Also, we developed a computational fluid dynamics (CFD) model to evaluate the role of K on interstitial fluid flow and drug transport in solid tumors. Results The results show that the hydraulic conductivity of human tumor tissues is very limited, ranging from approximately 10-15 to 10-14 m2/Pa∙s. Moreover, K values varied significantly between tumor types and between different samples from the same tumor. A significant inverse correlation was found between collagen fiber density and hydraulic conductivity values. However, no correlation was detected between K and cancer cell or fibroblast densities. The computational model demonstrated the impact of K on the interstitial fluid flow and the drug concentration profile: higher K values led to a lower IFP and deeper drug penetration. Conclusions Human tumor tissue is characterized by a very limited hydraulic conductivity, representing a barrier to effective drug transport. The results of this study can inform the development of realistic computational models, facilitate non-invasive IFP estimation, and contribute to stromal targeting anticancer therapies.
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Affiliation(s)
- Hooman Salavati
- Department of Human Structure and RepairGhent UniversityGhentBelgium
- IBiTech–BioMMedA, Ghent UniversityGhentBelgium
- Cancer Research Institute Ghent (CRIG)GhentBelgium
| | - Pim Pullens
- Department of RadiologyUniversity Hospital GhentGhentBelgium
- Ghent Institute of Functional and Metabolic Imaging (GIFMI)Ghent UniversityGhentBelgium
- IBiTech–Medisip, Ghent UniversityGhentBelgium
| | - Charlotte Debbaut
- IBiTech–BioMMedA, Ghent UniversityGhentBelgium
- Cancer Research Institute Ghent (CRIG)GhentBelgium
| | - Wim Ceelen
- Department of Human Structure and RepairGhent UniversityGhentBelgium
- Cancer Research Institute Ghent (CRIG)GhentBelgium
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Abdelaziz R, Tartor YH, Barakat AB, El-Didamony G, Gado MM, Zaki MSA, Eid RA, El-Samadony HA. Alpha-sitosterol: a new antiviral agent produced by Streptomyces misakiensis and its potential activity against Newcastle disease virus. BMC Vet Res 2024; 20:76. [PMID: 38413949 PMCID: PMC10898069 DOI: 10.1186/s12917-023-03875-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/29/2023] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND Newcastle Disease Virus (NDV) causes severe economic losses in the poultry industry worldwide. Hence, this study aimed to discover a novel bioactive antiviral agent for controlling NDV. Streptomyces misakiensis was isolated from Egyptian soil and its secondary metabolites were identified using infrared spectroscopy (IR), gas chromatography-mass spectrometry (GC-MS), and nuclear magnetic resonance (NMR) spectroscopy. The inhibitory activity of bioactive metabolite against NDV were examined. Three experimental groups of 10-day-old specific pathogen-free embryonated chicken eggs (SPF-ECEs), including the bioactive metabolite control group, NDV control positive group, and α-sitosterol and NDV mixture-treated group were inoculated. RESULTS α-sitosterol (Ethyl-6-methylheptan-2-yl]-10,13-dimethyl-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol), a secondary metabolite of S. misakiensis, completely inhibited hemagglutination (HA) activity of the NDV strain. The HA activity of the NDV strain was 8 log2 and 9 log2 for 0.5 and 0.75% RBCs, respectively. The NDV HA activity for the two concentrations of RBCs was significantly (P < 0.0001) inhibited after α-sitosterol treatment. There was a significant (P < 0.0001) decrease in the log 2 of HA activity, with values of - 0.500 (75%, chicken RBCs) before inoculation in SPF-ECEs and - 1.161 (50%, RBCs) and - 1.403 (75%, RBCs) following SPF-ECE inoculation. Compared to ECEs inoculated with NDV alone, the α-sitosterol-treated group showed improvement in histological lesion ratings for chorioallantoic membranes (CAM) and hepatic tissues. The CAM of the α-sitosterol- inoculated SPF-ECEs was preserved. The epithelial and stromal layers were noticeably thicker with extensive hemorrhages, clogged vasculatures, and certain inflammatory cells in the stroma layer in the NDV group. However, mild edema and inflammatory cell infiltration were observed in the CAM of the treated group. ECEs inoculated with α-sitosterol alone showed normal histology of the hepatic acini, central veins, and portal triads. Severe degenerative alterations, including steatosis, clogged sinusoids, and central veins, were observed in ECEs inoculated with NDV. Mild hepatic degenerative alterations, with perivascular round cell infiltration, were observed in the treated group. CONCLUSION To the best of our knowledge, this is the first study to highlight that the potentially bioactive secondary metabolite, α-sitosterol, belonging to the terpene family, has the potential to be a biological weapon against virulent NDV. It could be used for the development of innovative antiviral drugs to control NDV after further clinical investigation.
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Affiliation(s)
- Rewan Abdelaziz
- Department of Microbiology, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt.
| | - Yasmine H Tartor
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt.
| | - Ahmed B Barakat
- Department of Microbiology, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt
| | - Gamal El-Didamony
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
| | - Marwa M Gado
- Department of Microbiology, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt
| | - Mohamed Samir A Zaki
- Anatomy Department, College of Medicine, King Khalid University, P.O. Box 62529, Abha, Saudi Arabia
| | - Refaat A Eid
- Department of Pathology, College of Medicine, King Khalid University, Abha, 12573, Saudi Arabia
| | - Hanaa A El-Samadony
- Department of Poultry, Animal Health Research Institute, Dokki, Agriculture Research Center, Giza, 44511, Egypt
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Wang R, Qiu Y, Wang T, Wang M, Jin S, Cong F, Zhang Y, Xu H. MIHIC: a multiplex IHC histopathological image classification dataset for lung cancer immune microenvironment quantification. Front Immunol 2024; 15:1334348. [PMID: 38370413 PMCID: PMC10869447 DOI: 10.3389/fimmu.2024.1334348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/09/2024] [Indexed: 02/20/2024] Open
Abstract
Background Immunohistochemistry (IHC) is a widely used laboratory technique for cancer diagnosis, which selectively binds specific antibodies to target proteins in tissue samples and then makes the bound proteins visible through chemical staining. Deep learning approaches have the potential to be employed in quantifying tumor immune micro-environment (TIME) in digitized IHC histological slides. However, it lacks of publicly available IHC datasets explicitly collected for the in-depth TIME analysis. Method In this paper, a notable Multiplex IHC Histopathological Image Classification (MIHIC) dataset is created based on manual annotations by pathologists, which is publicly available for exploring deep learning models to quantify variables associated with the TIME in lung cancer. The MIHIC dataset comprises of totally 309,698 multiplex IHC stained histological image patches, encompassing seven distinct tissue types: Alveoli, Immune cells, Necrosis, Stroma, Tumor, Other and Background. By using the MIHIC dataset, we conduct a series of experiments that utilize both convolutional neural networks (CNNs) and transformer models to benchmark IHC stained histological image classifications. We finally quantify lung cancer immune microenvironment variables by using the top-performing model on tissue microarray (TMA) cores, which are subsequently used to predict patients' survival outcomes. Result Experiments show that transformer models tend to provide slightly better performances than CNN models in histological image classifications, although both types of models provide the highest accuracy of 0.811 on the testing dataset in MIHIC. The automatically quantified TIME variables, which reflect proportions of immune cells over stroma and tumor over tissue core, show prognostic value for overall survival of lung cancer patients. Conclusion To the best of our knowledge, MIHIC is the first publicly available lung cancer IHC histopathological dataset that includes images with 12 different IHC stains, meticulously annotated by multiple pathologists across 7 distinct categories. This dataset holds significant potential for researchers to explore novel techniques for quantifying the TIME and advancing our understanding of the interactions between the immune system and tumors.
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Affiliation(s)
- Ranran Wang
- Affiliated Cancer Hospital, Dalian University of Technology, Dalian, China
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, China
| | - Yusong Qiu
- Department of Pathology, Liaoning Cancer Hospital and Institute, Shenyang, China
| | - Tong Wang
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, China
| | - Mingkang Wang
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, China
| | - Shan Jin
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, China
| | - Fengyu Cong
- Affiliated Cancer Hospital, Dalian University of Technology, Dalian, China
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, China
- Key Laboratory of Integrated Circuit and Biomedical Electronic System, Dalian University of Technology, Dalian, Liaoning, China
- Faculty of Information Technology, University of Jyvaskyla, Jyvaskyla, Finland
| | - Yong Zhang
- Department of Pathology, Liaoning Cancer Hospital and Institute, Shenyang, China
| | - Hongming Xu
- Affiliated Cancer Hospital, Dalian University of Technology, Dalian, China
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, China
- Key Laboratory of Integrated Circuit and Biomedical Electronic System, Dalian University of Technology, Dalian, Liaoning, China
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Zhong C, Zhu H, Sheng Y, Wo J, You D, Sun G, Yu Z, Li W, Wang X. Biocompatibility and osteogenic potential of choline phosphate chitosan-coated biodegradable Zn1Mg. Acta Biomater 2024; 175:395-410. [PMID: 38096961 DOI: 10.1016/j.actbio.2023.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/25/2023]
Abstract
Zinc alloys have demonstrated considerable potentials as implant materials for biodegradable vascular and orthopedic applications. However, the high initial release of Zn2+ can trigger intense immune responses that impede tissue healing. To address this challenge and enhance the osteogenic capacity of zinc alloys, the surface of Zn1Mg was subjected to CO2 plasma modification (Zn1Mg-PP) followed by grafting with choline phosphate chitosan (Zn1Mg-PP-PCCs). This study aims to investigate the in vitro and in vivo biocompatibility of the surface-modified Zn1Mg. The effect of the surface modification on the inflammatory response and osteogenic repair process was investigated. Compared with unmodified Zn1Mg, the degradation rate of Zn1Mg-PP-PCCs was significantly decreased, avoiding the cytotoxicity triggered by the release of large amounts of Zn2+. Moreover, PCCs significantly enhanced the cell-material adhesion, promoted the proliferation of osteoblasts (MC3T3-E1) and upregulated the expression of key osteogenic factors in vitro. Notably, the in vivo experiments revealed that the surface modification of Zn1Mg suppressed inhibited the expression of inflammatory cytokines, promoting the secretion of anti-inflammatory factors, thereby reducing inflammation and promoting bone tissue repair. Furthermore, histological analysis of tissue sections exhibited strong integration between the material and the bone, along with well-defined new bone formation and reduced osteoclast aggregation on the surface. This was attributed to the improved immune microenvironment by PCCs, which promoted osteogenic differentiation of osteoblasts. These findings highlight that the preparation of PCCs coatings on zinc alloy surfaces effectively inhibited ion release and modulated the immune environment to promote bone tissue repair. STATEMENT OF SIGNIFICANCE: Surface modification of biodegradable Zn alloys facilitates the suppression of intense immune responses caused by excessive ion release concentrations from implants. We modified the surface of Zn1Mg with choline phosphate chitosan (PCCs) and investigated the effects of surface modification on the inflammatory response and osteogenic repair process. In vitro results showed that the PCCs coating effectively reduced the degradation rate of Zn1Mg to avoid cytotoxicity caused by high Zn2+ concentration, favoring the proliferation of osteoblasts. In addition, in vivo results indicated that Zn1Mg-PP-PCCs attenuated inflammation to promote bone repair by modulating the release of inflammation-related factors. The surface-modified Zn1Mg implants demonstrated strong osseointegration, indicating that the PCCs coating effectively modulated the immune microenvironment and promoted bone healing.
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Affiliation(s)
- Chen Zhong
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Haoran Zhu
- Guandgong Provincial Key Laboratory of Spine and Spinal Cord Reconstruction, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Heyuan 517000, China
| | - Yinying Sheng
- Institute of Corrosion Science and Technology, Guangzhou 510530, China.
| | - Jin Wo
- Department of Orthopedics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Deqiang You
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Guodong Sun
- Guandgong Provincial Key Laboratory of Spine and Spinal Cord Reconstruction, The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Heyuan 517000, China; Department of Orthopedics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China.
| | - Zhentao Yu
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Wei Li
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Xiaojian Wang
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China; Shaoguan Research Institute of Jinan University, 168 Muxi Avenue, Shaoguan 512029, China.
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Velez Z, Hubbard PC, Alves A, Costa RA, Guerreiro PM. Environmental salinity modulates olfactory sensitivity in the euryhaline European seabass, Dicentrarchus labrax, acclimated to seawater and brackish water. J Exp Biol 2024; 227:jeb246448. [PMID: 38197261 DOI: 10.1242/jeb.246448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 12/29/2023] [Indexed: 01/11/2024]
Abstract
The olfactory epithelium of fish is - of necessity - in intimate contact with the surrounding water. In euryhaline fish, movement from seawater to freshwater (and vice versa) exposes the epithelium to massive changes in salinity and ionic concentrations. How does the olfactory system function in the face of such changes? The current study compared olfactory sensitivity in seawater- (35‰) and brackish water-adapted seabass (5‰) using extracellular multi-unit recording from the olfactory nerve. Seawater-adapted bass had higher olfactory sensitivity to amino acid odorants when delivered in seawater than in freshwater. Conversely, brackish water-adapted bass had largely similar sensitivities to the same odorants when delivered in seawater or freshwater, although sensitivity was still slightly higher in seawater. The olfactory system of seawater-adapted bass was sensitive to decreases in external [Ca2+], whereas brackish water-adapted bass responded to increases in [Ca2+]; both seawater- and brackish water-adapted bass responded to increases in external [Na+] but the sensitivity was markedly higher in brackish water-adapted bass. In seawater-adapted bass, olfactory sensitivity to l-alanine depended on external Ca2+ ions, but not Na+; brackish water-adapted bass did respond to l-alanine in the absence of Ca2+, albeit with lower sensitivity, whereas sensitivity was unaffected by removal of Na+ ions. A possible adaptation of the olfactory epithelium was the higher number of mucous cells in brackish water-adapted bass. The olfactory system of seabass is able to adapt to low salinities, but this is not immediate; further studies are needed to identify the processes involved.
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Affiliation(s)
- Zélia Velez
- Comparative Endocrinology and Integrative Biology Group, Centre for Marine Sciences, University of Algarve, Campus of Gambelas, Building 7, 8005-139 Faro, Portugal
| | - Peter C Hubbard
- Comparative Endocrinology and Integrative Biology Group, Centre for Marine Sciences, University of Algarve, Campus of Gambelas, Building 7, 8005-139 Faro, Portugal
| | - Alexandra Alves
- Comparative Endocrinology and Integrative Biology Group, Centre for Marine Sciences, University of Algarve, Campus of Gambelas, Building 7, 8005-139 Faro, Portugal
| | - Rita A Costa
- Comparative Endocrinology and Integrative Biology Group, Centre for Marine Sciences, University of Algarve, Campus of Gambelas, Building 7, 8005-139 Faro, Portugal
| | - Pedro M Guerreiro
- Comparative Endocrinology and Integrative Biology Group, Centre for Marine Sciences, University of Algarve, Campus of Gambelas, Building 7, 8005-139 Faro, Portugal
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Wu J, Wei X, Li Z, Chen H, Gao R, Ning P, Li Y, Cheng Y. Arresting the G2/M phase empowers synergy in magnetic nanomanipulator-based cancer mechanotherapy and chemotherapy. J Control Release 2024; 366:535-547. [PMID: 38185334 DOI: 10.1016/j.jconrel.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 11/27/2023] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
Using mechanical cues for cancer cells can realize precise control and efficient therapeutic effects. However, the cell cycle-specific response for dynamic mechanical manipulation is barely investigated. Here, RGD-modified iron oxide nanomanipulators were utilized as the intracellular magneto-mechanical transducers to investigate the mechanical impacts on the cell cycle under a dynamic magnetic field for cancer treatment. The G2/M phase was identified to be sensitive to the intracellular magneto-mechanical modulation with a synergistic treatment effect between the pretreatment of cell cycle-specific drugs and the magneto-mechanical destruction, and thus could be an important mechanical-targeted phase for regulation of cancer cell death. Finally, combining the cell cycle-specific drugs with magneto-mechanical manipulation could significantly inhibit glioma and breast cancer growth in vivo. This intracellular mechanical stimulus showed cell cycle-dependent cytotoxicity and could be developed as a spatiotemporal therapeutic modality in combination with chemotherapy drugs for treating deep-seated tumors.
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Affiliation(s)
- Jiaojiao Wu
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Xueyan Wei
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Zhenguang Li
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Haotian Chen
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Rui Gao
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Peng Ning
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Yingze Li
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China
| | - Yu Cheng
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
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Huang M, Shao H, Zhang X, Yang F, Wang J, Tan S, Chen H, Li X. Comparison of cow's milk allergy models highlighted higher humoral and Th2 immune responses in BALB/c than C3H/HeNCrl mice. Food Chem Toxicol 2024; 184:114315. [PMID: 38081529 DOI: 10.1016/j.fct.2023.114315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 11/09/2023] [Accepted: 11/28/2023] [Indexed: 12/25/2023]
Abstract
Cow's milk allergy (CMA) is common in early childhood and the incidence is increasing. However, its mechanisms of action are still not fully understood due to the range of different clinical symptoms. So far, the development of different mouse models has been the best choice to study the molecular mechanisms triggering allergy. However, the selection of suitable strains for the establishment of animal models truly representative of associated human pathologies is still a challenge. Hence, we focused on both C3H/HeNCrl and BALB/c mice to characterize their susceptibility to CMA. After intraperitoneal sensitization, BALB/c and C3H/HeNCrl strains were challenged with β-lactoglobulin (BLG), and compared in allergic symptoms and active immune response, which assessed by specific antibody production and cytokine release. At first, both groups exhibited anaphylaxis, showed specific BLG-related IgE, Th2 response and seemed both suitable for the development of CMA models. However, a detailed analysis revealed that BALB/c had both stronger humoral and Th2 immune responses, producing more antibodies (IgE and IgG/IgG1/IgG2a), and releasing higher levels of Th2-associated cytokines (IL-4, IL-5, IL-13) compared to C3H/HeNCrl mice. Therefore, BALB/c strain would represent a preferential choice in the establishment of CMA models. This study highlights the subtle differences and major outcomes in the selection of mouse strains for the development of suitable food allergy models.
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Affiliation(s)
- Meijia Huang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science, Henan Institute of Science and Technology, Xinxiang, 453003, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Huming Shao
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Xing Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Fan Yang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Jingshu Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Shuijie Tan
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Hongbing Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; Sino-German Joint Research Institute, Nanchang University, Nanchang, 330047, Jiangxi, PR China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, 330047, Jiangxi, PR China
| | - Xin Li
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, 330047, Jiangxi, PR China.
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Choi SH, Kim HC, Jang SG, Lee YJ, Heo JY, Kweon GR, Ryu MJ. Effects of a Combination of Polynucleotide and Hyaluronic Acid for Treating Osteoarthritis. Int J Mol Sci 2024; 25:1714. [PMID: 38338992 PMCID: PMC10855695 DOI: 10.3390/ijms25031714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Knee osteoarthritis (OA), an age-related degenerative disease characterized by severe pain and disability, is treated using polynucleotides (PNs) and hyaluronic acid (HA). The intra-articular (IA) injection of HA has been studied extensively in both animal models and in humans; however, the efficacy and mechanisms of action remain unclear. In addition, there has been a paucity of research regarding the use of PN alone or in combination with HA in OA. To investigate the effect of the combined injection of PN and HA in vivo, pathological and behavioral changes were assessed in an OA model. Anterior cruciate ligament transection and medial meniscectomy were performed in Sprague-Dawley rats to create the OA animal model. The locomotor activity improved following PNHA injection, while the OARSI grade improved in the medial tibia and femur. In mild OA, TNFα levels decreased histologically in the PN, HA, and PNHA groups but only the PNHA group showed behavioral improvement in terms of distance. In conclusion, PNHA exhibited anti-inflammatory effects during OA progression and improved locomotor activity regardless of the OARSI grade.
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Affiliation(s)
- Seung Hee Choi
- Joonghun Pharmaceutical Co., Ltd., 15 Gukhoe-daero 62-gil, Yeongdeungpo-gu, Seoul 07236, Republic of Korea; (S.H.C.); (H.C.K.); (S.G.J.); (Y.J.L.)
| | - Hyun Chul Kim
- Joonghun Pharmaceutical Co., Ltd., 15 Gukhoe-daero 62-gil, Yeongdeungpo-gu, Seoul 07236, Republic of Korea; (S.H.C.); (H.C.K.); (S.G.J.); (Y.J.L.)
| | - Seul Gi Jang
- Joonghun Pharmaceutical Co., Ltd., 15 Gukhoe-daero 62-gil, Yeongdeungpo-gu, Seoul 07236, Republic of Korea; (S.H.C.); (H.C.K.); (S.G.J.); (Y.J.L.)
| | - Yeon Jae Lee
- Joonghun Pharmaceutical Co., Ltd., 15 Gukhoe-daero 62-gil, Yeongdeungpo-gu, Seoul 07236, Republic of Korea; (S.H.C.); (H.C.K.); (S.G.J.); (Y.J.L.)
| | - Jun Young Heo
- Department of Biochemistry, College of Medicine, Chungnam National University School of Medicine, Daejeon 35015, Republic of Korea; (J.Y.H.); (G.R.K.)
| | - Gi Ryang Kweon
- Department of Biochemistry, College of Medicine, Chungnam National University School of Medicine, Daejeon 35015, Republic of Korea; (J.Y.H.); (G.R.K.)
| | - Min Jeong Ryu
- Joonghun Pharmaceutical Co., Ltd., 15 Gukhoe-daero 62-gil, Yeongdeungpo-gu, Seoul 07236, Republic of Korea; (S.H.C.); (H.C.K.); (S.G.J.); (Y.J.L.)
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