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Naselli F, Cardinale PS, Volpes S, Martino C, Cruciata I, Valenti R, Luparello C, Caradonna F, Chiarelli R. An alternative approach of TUNEL assay to specifically characterize DNA fragmentation in cell model systems. Histochem Cell Biol 2024:10.1007/s00418-024-02306-9. [PMID: 38940846 DOI: 10.1007/s00418-024-02306-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2024] [Indexed: 06/29/2024]
Abstract
DNA damage is one of the most important effects induced by chemical agents. We report a comparative analysis of DNA fragmentation on three different cell lines using terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, generally applied to detect apoptosis. Our approach combines cytogenetic techniques and investigation in detached cellular structures, recovered from the culture medium with the aim to compare the DNA fragmentation of three different cell line even beyond the cells adherent to substrate. Consequently, we detect any fragmentation points on single chromosomes, whole nuclei and other cellular structures. Cells were exposed to resveratrol (RSV) and doxorubicin (Doxo), in single and combined treatments. Control and treated astrocytes showed DNA damage in condensed nuclei and detached structures. Caco-2 cells showed fragmented DNA only after Doxo-treatment, while controls showed fragmented chromosomes, indicating DNA damage in replicating cells. MDA-MB-231 cells showed nuclear condensation and DNA fragmentation above all after RSV-treatment and related to detached structures. This model proved to perform a grading of genomic instability (GI). Astrocytes show a hybrid level of GI. Caco-2 cells showed fragmented metaphase chromosomes, proving that the DNA damage was transmitted to the daughter cells probably due to an absence of DNA repair mechanisms. Instead, MDA-MB-231 cells showed few or no fragmented metaphase, suggesting a probable activation of DNA repair mechanisms. By applying this alternative approach of TUNEL test, we obtained data that can more specifically characterize DNA fragmentation for a suitable application in various fields.
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Affiliation(s)
- Flores Naselli
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale Delle Scienze Building 16, 90128, Palermo, Italy
| | - Paola Sofia Cardinale
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale Delle Scienze Building 16, 90128, Palermo, Italy
| | - Sara Volpes
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale Delle Scienze Building 16, 90128, Palermo, Italy
| | - Chiara Martino
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale Delle Scienze Building 16, 90128, Palermo, Italy
| | - Ilenia Cruciata
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale Delle Scienze Building 16, 90128, Palermo, Italy
| | - Rossella Valenti
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale Delle Scienze Building 16, 90128, Palermo, Italy
| | - Claudio Luparello
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale Delle Scienze Building 16, 90128, Palermo, Italy
- NBFC, National Biodiversity Future Center, 90133, Palermo, Italy
| | - Fabio Caradonna
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale Delle Scienze Building 16, 90128, Palermo, Italy.
- NBFC, National Biodiversity Future Center, 90133, Palermo, Italy.
| | - Roberto Chiarelli
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale Delle Scienze Building 16, 90128, Palermo, Italy
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Wang D, Deng X, Wang J, Che S, Ma X, Zhang S, Dong Q, Huang C, Chen J, Shi C, Zhang MR, Hu K, Luo L, Xiao Z. Environmentally responsive hydrogel promotes vascular normalization to enhance STING anti-tumor immunity. J Control Release 2024; 372:403-416. [PMID: 38914207 DOI: 10.1016/j.jconrel.2024.06.052] [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: 05/28/2024] [Accepted: 06/20/2024] [Indexed: 06/26/2024]
Abstract
The immunosuppressive microenvironment of malignant tumors severely hampers the effectiveness of anti-tumor therapy. Moreover, abnormal tumor vasculature interacts with immune cells, forming a vicious cycle that further interferes with anti-tumor immunity and promotes tumor progression. Our pre-basic found excellent anti-tumor effects of c-di-AMP and RRx-001, respectively, and we further explored whether they could be combined synergistically for anti-tumor immunotherapy. We chose to load these two drugs on PVA-TSPBA hydrogel scaffolds that expressly release drugs within the tumor microenvironment by in situ injection. Studies have shown that c-di-AMP activates the STING pathway, enhances immune cell infiltration, and reverses tumor immunosuppression. Meanwhile, RRx-001 releases nitric oxide, which increases oxidative stress injury in tumor cells and promotes apoptosis. Moreover, the combination of the two presented more powerful pro-vascular normalization and reversed tumor immunosuppression than the drug alone. This study demonstrates a new design option for anti-tumor combination therapy and the potential of tumor environmentally responsive hydrogel scaffolds in combination with anti-tumor immunotherapy.
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Affiliation(s)
- Duo Wang
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - Xiujiao Deng
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China; Department of Pharmacy, The Guangzhou Key Laboratory of Basic and Translational Research on Chronic Diseases, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Jinghao Wang
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China; Department of Pharmacy, The Guangzhou Key Laboratory of Basic and Translational Research on Chronic Diseases, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Shuang Che
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - Xiaocong Ma
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China; Department of Radiology, The Fifth Affiliated Hospital of Jinan University (Shenhe People's Hospital), Heyuan 517000, China
| | - Siqi Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Qiu Dong
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - Cuiqing Huang
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - Jifeng Chen
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - Changzheng Shi
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China.
| | - Ming-Rong Zhang
- Department of Advanced Nuclear Medicine Sciences, Institute of Quantum Medical, Science, National Institutes for Quantum Science and Technology, Chiba 2638555, Japan
| | - Kuan Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
| | - Liangping Luo
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China; Department of Radiology, The Fifth Affiliated Hospital of Jinan University (Shenhe People's Hospital), Heyuan 517000, China.
| | - Zeyu Xiao
- The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China.
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Demirci H, Popovic S, Dittmayer C, Yilmaz DE, El-Shimy IA, Mülleder M, Hinze C, Su M, Mertins P, Kirchner M, Osmanodja B, Paliege A, Budde K, Amann K, Persson PB, Mutig K, Bachmann S. Immunosuppression with cyclosporine versus tacrolimus shows distinctive nephrotoxicity profiles within renal compartments. Acta Physiol (Oxf) 2024:e14190. [PMID: 38884453 DOI: 10.1111/apha.14190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/18/2024] [Accepted: 06/04/2024] [Indexed: 06/18/2024]
Abstract
AIM Calcineurin inhibitors (CNIs) are the backbone for immunosuppression after solid organ transplantation. Although successful in preventing kidney transplant rejection, their nephrotoxic side effects contribute to allograft injury. Renal parenchymal lesions occur for cyclosporine A (CsA) as well as for the currently favored tacrolimus (Tac). We aimed to study whether chronic CsA and Tac exposures, before reaching irreversible nephrotoxic damage, affect renal compartments differentially and whether related pathogenic mechanisms can be identified. METHODS CsA and Tac were administered chronically in wild type Wistar rats using osmotic minipumps over 4 weeks. Functional parameters were controlled. Electron microscopy, confocal, and 3D-structured illumination microscopy were used for histopathology. Clinical translatability was tested in human renal biopsies. Standard biochemical, RNA-seq, and proteomic technologies were applied to identify implicated molecular pathways. RESULTS Both drugs caused significant albeit differential damage in vasculature and nephron. The glomerular filtration barrier was more affected by Tac than by CsA, showing prominent deteriorations in endothelium and podocytes along with impaired VEGF/VEGFR2 signaling and podocyte-specific gene expression. By contrast, proximal tubule epithelia were more severely affected by CsA than by Tac, revealing lysosomal dysfunction, enhanced apoptosis, impaired proteostasis and oxidative stress. Lesion characteristics were confirmed in human renal biopsies. CONCLUSION We conclude that pathogenetic alterations in the renal compartments are specific for either treatment. Considering translation to the clinical setting, CNI choice should reflect individual risk factors for renal vasculature and tubular epithelia. As a step in this direction, we share protein signatures identified from multiomics with potential pathognomonic relevance.
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Affiliation(s)
- Hasan Demirci
- Institute of Functional Anatomy, Charité, Universitätsmedizin Berlin, Berlin, Germany
- Department of Cell- and Neurobiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Suncica Popovic
- Institute of Functional Anatomy, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Carsten Dittmayer
- Department of Neuropathology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Duygu Elif Yilmaz
- Institute of Functional Anatomy, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Ismail Amr El-Shimy
- Molecular Epidemiology Unit, Berlin Institute of Health, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Mülleder
- Core Facility-High-Throughput Mass Spectrometry, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Christian Hinze
- Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany
| | - Mingzhen Su
- Department of Cell- and Neurobiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Philipp Mertins
- Core Unit Proteomics, Berlin Institute of Health at Charité, Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
| | - Marieluise Kirchner
- Core Unit Proteomics, Berlin Institute of Health at Charité, Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
| | - Bilgin Osmanodja
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Alexander Paliege
- Department of Nephrology, Universitätsklinikum Carl Gustav Carus Dresden, Dresden, Germany
| | - Klemens Budde
- Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Kerstin Amann
- Department of Nephropathology, Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Pontus B Persson
- Department of Translational Physiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Kerim Mutig
- Department of Translational Physiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
- Department of Pharmacology, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Sebastian Bachmann
- Institute of Functional Anatomy, Charité, Universitätsmedizin Berlin, Berlin, Germany
- Department of Cell- and Neurobiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
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Azumi M, Kusama K, Yoshie M, Nakano S, Tsuru A, Kato T, Tamura K. Involvement of ferroptosis in eribulin-induced cytotoxicity in ovarian clear cell carcinoma. Eur J Pharmacol 2024; 971:176544. [PMID: 38552939 DOI: 10.1016/j.ejphar.2024.176544] [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: 02/16/2024] [Revised: 03/19/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
Ovarian clear cell carcinoma (OCCC) is a unique clinicopathological subtype of epithelial ovarian cancer that is resistant to standard chemotherapy. Eribulin, a microtubule dynamics inhibitor of halichondrin class, has unique effects in the cancer microenvironment such as induction of epithelization and reduction in metastatic potential in breast cancer cells; however, nothing is known about the effect of eribulin and the detailed mechanisms in OCCC. This study aimed to investigate the involvement of ferroptosis and its mechanism in the antitumor activity of eribulin in OCCC cells and a mouse xenograft model. We found that eribulin-induced cell death was reduced by ferroptosis inhibitors; deferoxamine, an iron chelator and ferrostatin-1, a lipid peroxidation inhibitor. Eribulin increased the levels of intracellular iron, reactive oxygen species (ROS), and lipid peroxides, and increased the mitochondrial membrane potential. Eribulin downregulated the expression levels of nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), the mitochondrial enzyme dihydroorotate dehydrogenase (DHODH), and superoxide dismutase (SOD) activity. The combination of eribulin and ML210, a glutathione peroxidase 4-inhibiting ferroptosis inducer, had a synergistic effect on ferroptosis. Taken together, our findings show firstly that eribulin triggers ferroptosis in OCCC and this effect occurs via the suppression of the Nrf2-HO-1 signaling pathway, SOD activity and the promotion of lipid peroxidation. These findings suggest that eribulin-induced ferroptosis is associated with its anti-tumor effect and also could be a potential therapeutic target in OCCC.
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Affiliation(s)
- Mana Azumi
- Department of Endocrine Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan.
| | - Kazuya Kusama
- Department of Endocrine Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Mikihiro Yoshie
- Department of Endocrine Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Saya Nakano
- Department of Endocrine Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Atsuya Tsuru
- Department of Endocrine Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Tomoyasu Kato
- Department of Endocrine Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan; Department of Gynecologic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Kazuhiro Tamura
- Department of Endocrine Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan.
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Li Z, Xing J. Potential therapeutic applications of circular RNA in acute kidney injury. Biomed Pharmacother 2024; 174:116502. [PMID: 38569273 DOI: 10.1016/j.biopha.2024.116502] [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: 12/27/2023] [Revised: 03/12/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024] Open
Abstract
Acute kidney injury (AKI) is a common clinical syndrome characterized by a rapid deterioration in renal function, manifested by a significant increase in creatinine and a sharp decrease in urine output. The incidence of morbidity and mortality associated with AKI is on the rise, with most patients progressing to chronic kidney disease or end-stage renal disease. Treatment options for patients with AKI remain limited. Circular RNA (circRNA) is a wide and diverse class of non-coding RNAs that are present in a variety of organisms and are involved in gene expression regulation. Studies have shown that circRNA acts as a competing RNA, is involved in disease occurrence and development, and has potential as a disease diagnostic and prognostic marker. CircRNA is involved in the regulation of important biological processes, including apoptosis, oxidative stress, and inflammation. This study reviews the current status and progress of circRNA research in the context of AKI.
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Affiliation(s)
- Zheng Li
- Department of Emergency Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Jihong Xing
- Department of Emergency Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
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6
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Leaker BD, Sojoodi M, Tanabe KK, Popov YV, Tam J, Anderson RR. Increased susceptibility to ischemia causes exacerbated response to microinjuries in the cirrhotic liver. FASEB J 2024; 38:e23585. [PMID: 38661043 DOI: 10.1096/fj.202301438rr] [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: 07/14/2023] [Revised: 03/07/2024] [Accepted: 03/18/2024] [Indexed: 04/26/2024]
Abstract
Fractional laser ablation is a technique developed in dermatology to induce remodeling of skin scars by creating a dense pattern of microinjuries. Despite remarkable clinical results, this technique has yet to be tested for scars in other tissues. As a first step toward determining the suitability of this technique, we aimed to (1) characterize the response to microinjuries in the healthy and cirrhotic liver, and (2) determine the underlying cause for any differences in response. Healthy and cirrhotic rats were treated with a fractional laser then euthanized from 0 h up to 14 days after treatment. Differential expression was assessed using RNAseq with a difference-in-differences model. Spatial maps of tissue oxygenation were acquired with hyperspectral imaging and disruptions in blood supply were assessed with tomato lectin perfusion. Healthy rats showed little damage beyond the initial microinjury and healed completely by 7 days without scarring. In cirrhotic rats, hepatocytes surrounding microinjury sites died 4-6 h after ablation, resulting in enlarged and heterogeneous zones of cell death. Hepatocytes near blood vessels were spared, particularly near the highly vascularized septa. Gene sets related to ischemia and angiogenesis were enriched at 4 h. Laser-treated regions had reduced oxygen saturation and broadly disrupted perfusion of nodule microvasculature, which matched the zones of cell death. Our results demonstrate that the cirrhotic liver has an exacerbated response to microinjuries and increased susceptibility to ischemia from microvascular damage, likely related to the vascular derangements that occur during cirrhosis development. Modifications to the fractional laser tool, such as using a femtosecond laser or reducing the spot size, may be able to prevent large disruptions of perfusion and enable further development of a laser-induced microinjury treatment for cirrhosis.
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Affiliation(s)
- Ben D Leaker
- Health Sciences and Technology, Harvard-Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Mozhdeh Sojoodi
- Division of Gastrointestinal and Oncologic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Surgery, Harvard Medical School, Boston, Massachusetts, USA
| | - Kenneth K Tanabe
- Division of Gastrointestinal and Oncologic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Surgery, Harvard Medical School, Boston, Massachusetts, USA
| | - Yury V Popov
- Division of Gastroenterology, Hepatology and Nutrition, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Joshua Tam
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
| | - R Rox Anderson
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
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Mishima E. Targeting ferroptosis for treating kidney disease. Clin Exp Nephrol 2024:10.1007/s10157-024-02491-w. [PMID: 38644406 DOI: 10.1007/s10157-024-02491-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 03/19/2024] [Indexed: 04/23/2024]
Abstract
Ferroptosis is a type of regulated cell death hallmarked by iron-mediated excessive lipid oxidation. Over the past decade since the coining of the term ferroptosis, advances in research have led to the identification of intracellular processes that regulate ferroptosis such as GSH-GPX4 pathway and FSP1-coenzyme Q10/vitamin K pathway. From a disease perspective, the involvement of ferroptosis in pathological conditions including kidney disease has attracted attention. In terms of renal pathophysiology, ferroptosis has been widely investigated for its involvement in ischemia-reperfusion injury, nephrotoxin-induced kidney damage and other renal diseases. Therefore, therapeutic interventions targeting ferroptosis are expected to become a new therapeutic approach for these diseases. However, when considering cell death as a therapeutic target, careful consideration must be given to (i) in which type of cells, (ii) which type of cell death mode, and (iii) in which stage or temporal window of the disease. In the next decade, elucidation of the true involvement of ferroptosis in kidney disease setting in human, and development of clinically applicable and effective therapeutic drugs that target ferroptosis are warranted.
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Affiliation(s)
- Eikan Mishima
- Division of Nephrology, Rheumatology and Endocrinology, Tohoku University Graduate School of Medicine, Sendai, Japan.
- Institute of Metabolism and Cell Death, Helmholtz Zentrum München, Neuherberg, Germany.
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Huang G, Zhang S, Liao J, Qin Y, Hong Y, Chen Q, Lin Y, Li Y, Lan L, Hu W, Huang K, Tang F, Tang N, Jiang L, Shen C, Cui L, Zhong H, Li M, Lu P, Shu Q, Wei Y, Xu F. BMX deletion mitigates neuroinflammation induced by retinal ischemia/reperfusion through modulation of the AKT/ERK/STAT3 signaling cascade. Heliyon 2024; 10:e27114. [PMID: 38434304 PMCID: PMC10907772 DOI: 10.1016/j.heliyon.2024.e27114] [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: 12/12/2023] [Revised: 02/13/2024] [Accepted: 02/23/2024] [Indexed: 03/05/2024] Open
Abstract
Aims Retinal ischemia/reperfusion (I/R) injury is implicated in the etiology of various ocular disorders. Prior research has demonstrated that bone marrow tyrosine kinase on chromosome X (BMX) contributes to the advancement of ischemic disease and inflammatory reactions. Consequently, the current investigation aims to evaluate BMX's impact on retinal I/R injury and clarify its implied mechanism of action. Main methods This study utilized male and female systemic BMX knockout (BMX-/-) mice to conduct experiments. The utilization of Western blot assay and immunofluorescence labeling techniques was employed to investigate variations in the expression of protein and tissue localization. Histomorphological changes were observed through H&E staining and SD-OCT examination. Visual function changes were assessed through electrophysiological experiments. Furthermore, apoptosis in the retina was identified using the TUNEL assay, as well as the ELISA technique, which has been utilized to determine the inflammatory factors level. Key findings Our investigation results revealed that the knockdown of BMX did not yield a significant effect on mouse retina. In mice, BMX knockdown mitigated the negative impact of I/R injury on retinal tissue structure and visual function. BMX knockdown effectively reduced apoptosis, suppressed inflammatory responses, and decreased inflammatory factors subsequent to I/R injury. The outcomes of the current investigation revealed that BMX knockdown partially protected the retina through downregulating phosphorylation of AKT/ERK/STAT3 pathway. Significance Our investigation showed that BMX-/- reduces AKT, ERK, and STAT3 phosphorylation, reducing apoptosis and inflammation. Thus, this strategy protected the retina from structural and functional damage after I/R injury.
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Affiliation(s)
- Guangyi Huang
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Shaoyang Zhang
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Jing Liao
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Yuanjun Qin
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Yiyi Hong
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Qi Chen
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Yunru Lin
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Yue Li
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Lin Lan
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Wen Hu
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Kongqian Huang
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Fen Tang
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Ningning Tang
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Li Jiang
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Chaolan Shen
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Ling Cui
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Haibin Zhong
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Min Li
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Peng Lu
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
| | - Qinmeng Shu
- Eye Institute, Eye and ENT Hospital, College of Medicine, Fudan University, Shanghai Key Laboratory of Visual Impairment and Restoration, Science and Technology Commission of Shanghai Municipality, Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, National Health Commission, Shanghai, China
| | - Yantao Wei
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, 7 Jinsui Road, Guangzhou, 510060, China
| | - Fan Xu
- Department of Ophthalmology, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, Guangxi Academy of Medical Sciences, Nanning, 530021, Guangxi, China
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9
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Yahya S, Sulaiman MK, Sudhandiran G. Caffeic acid phenethyl ester mediates apoptosis in serum-starved HT29 colon cancer cells through modulation of heat shock proteins and MAPK pathways. Cell Biochem Funct 2024; 42:e3942. [PMID: 38379263 DOI: 10.1002/cbf.3942] [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: 10/13/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 02/22/2024]
Abstract
Colorectal cancer (CRC) is among the most prevalent gastrointestinal cancers of epithelial origin worldwide, with over 2 million cases detected every year. Emerging evidence suggests a significant increase in the levels of inflammatory and stress-related markers in patients with CRC, indicating that oxidative stress and lipid peroxidation may influence signalling cascades involved in the progression of the disease. However, the precise molecular and cellular basis underlying CRC and their modulations during bioactive compound exposure have not yet been deciphered. This study examines the effect of caffeic acid phenethyl ester (CAPE), a natural bioactive compound, in HT29 CRC cells grown under serum-supplemented and serum-deprived conditions. We found that CAPE inhibited cell cycle progression in the G2/M phase and induced apoptosis. Migration assay confirmed that CAPE repressed cancer invasiveness. Protein localisation by immunofluorescence microscopy and protein expression by western blot analysis reveal increased expressions of key inflammatory signalling mediators such as p38α, Jun N-terminal kinase and extracellular signal-regulated kinase (ERK) proteins. Molecular docking data demonstrates that CAPE shows a higher docking score of -5.35 versus -4.59 to known p38 inhibitor SB203580 as well as a docking score of -4.17 versus -3.86 to known ERK1/2 inhibitor AZD0364. Co-immunoprecipitation data reveals that CAPE treatment effectively downregulates heat shock protein (HSP) expression in both sera-supplemented and limited conditions through its interaction with mitogen-activated protein kinase 14 (MAPK14). These results suggest that stress induction via serum starvation in HT29 CRC cells leads to the induction of apoptosis and co-ordinated activation of MAPK-HSP pathways. Molecular docking studies support that CAPE could serve as an effective inhibitor to target p38 and MAPK compared to their currently known inhibitors.
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Affiliation(s)
- Showket Yahya
- Cell Biology Laboratory, Department of Biochemistry, University of Madras, Guindy Campus, Chennai, India
| | | | - Ganapasam Sudhandiran
- Cell Biology Laboratory, Department of Biochemistry, University of Madras, Guindy Campus, Chennai, India
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10
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Ding L, Wang K, Zhu H, Liu Z, Wang J. Protective effect of quercetin on cadmium-induced kidney apoptosis in rats based on PERK signaling pathway. J Trace Elem Med Biol 2024; 82:127355. [PMID: 38071864 DOI: 10.1016/j.jtemb.2023.127355] [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: 08/14/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND Cadmium (Cd) is a highly toxic environmental pollutant that can enter the body through bioaccumulation. The kidney is an important target organ for Cd poisoning. Quercetin (Que) is a natural flavonoid compound with free radical scavenging and antioxidant properties. Previous studies showed that Que can alleviate kidney damage caused by Cd poisoning in rats, but the specific mechanism is still unclear. METHODS Twenty-four male Sprague-Dawley (SD) rats were divided into four groups: normal saline-treated control group, Cd group treated by intraperitoneal injection of 2 mg/kg b.w. CdCl2, Cd + Que group treated by intraperitoneal injection of 2 mg/kg b.w. CdCl2 and 100 mg/kg b.w. Que, and Que group treated by 100 mg/kg b.w. Que. Four weeks later, the rats were anesthetized with diethyl ether, and blood was taken intravenously. The rats were executed with their necks cut off, and the kidneys were removed. Body weight, kidney organ weight, and glutathione (GSH) and malondialdehyde (MDA) levels were measured. The structure of kidney tissue was observed by hematoxylin and eosin staining, kidney cell apoptosis was detected by TUNEL assay, and the mRNA expression levels of genes related to the PERK signaling pathway were analyzed by RT-PCR. RESULTS Compared with the control group, the Cd-treated group exhibited a significant decrease in body weight (P < 0.01). Their kidneys showed a significant increase in the relative organ weight (P < 0.01). Moreover, the MDA and GSH levels increased. Kidney tissue damage and renal cell apoptosis were observed, and the mRNA expression levels of genes related to the PERK signaling pathway significantly increased (P < 0.01). Compared with the Cd-treated group, the Cd + Que group exhibited a significant increase in body weight (P < 0.01) and significant decreases in the relative organ weight, MDA and GSH levels, and mRNA expression levels of genes related to the PERK signaling pathway (P < 0.01). Furthermore, kidney tissue damage and renal cell apoptosis were observed. CONCLUSION Cd treatment resulted in rat weight loss, renal edema, and oxidative stress and caused renal tissue damage and cell apoptosis by activating the PERK signaling pathway. Que was able to restore the body weight and renal coefficient of rats. It also alleviated the oxidative stress and kidney tissue damage caused by Cd and the cell apoptosis caused by Cd through inhibiting the PERK signaling pathway. Thus, Que could be considered for the treatment of kidney diseases caused by Cd poisoning.
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Affiliation(s)
- Lulu Ding
- College of Animal Science and Technology, Henan University of Science and Technology, No. 263, Kaiyuan Avenue, Luoyang 471023, PR China; College of Veterinary Medicine, Yangzhou University, No. 12, East Wenhui Road, Yangzhou 225009, PR China
| | - Ke Wang
- College of Animal Science and Technology, Henan University of Science and Technology, No. 263, Kaiyuan Avenue, Luoyang 471023, PR China; Zhengzhou Medical College, No. 3, Chuangye Avenue, Zhengzhou 452370, PR China
| | - Huali Zhu
- Law Hospital, Henan University of Science and Technology, No. 263, Kaiyuan Avenue, Luoyang 471023, PR China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, No. 12, East Wenhui Road, Yangzhou 225009, PR China
| | - Jicang Wang
- College of Animal Science and Technology, Henan University of Science and Technology, No. 263, Kaiyuan Avenue, Luoyang 471023, PR China.
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11
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Lv Z, Wang P, Li W, Xie Y, Sun W, Jin X, Jiang R, Fei Y, Liu Y, Shi T, Guo H, Sun Z, Lin J, Wang X, Tan G, Wu Y, Bao N, Shi D. Bifunctional TRPV1 Targeted Magnetothermal Switch to Attenuate Osteoarthritis Progression. RESEARCH (WASHINGTON, D.C.) 2024; 7:0316. [PMID: 38371274 PMCID: PMC10871150 DOI: 10.34133/research.0316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 01/20/2024] [Indexed: 02/20/2024]
Abstract
Transient receptor potential vanilloid family member 1 (TRPV1) has been revealed as a therapeutic target of osteoarthritis (OA), the most common deteriorating whole joint disease, by impeding macrophagic inflammation and chondrocytes ferroptosis. However, the clinical application for capsaicin as the TRPV1 agonist is largely limited by its chronic toxicity. To address this issue, we developed a bifunctional controllable magnetothermal switch targeting TRPV1 for the alleviation of OA progression by coupling of magnetic nanoparticles (MNPs) to TRPV1 monoclonal antibodies (MNPs-TRPV1). Under the alternating magnetic field (AMF) stimulation, MNPs-TRPV1 locally dissipated heat, which was sufficient to trigger the opening and activation of TRPV1, and effectively impeded macrophagic inflammation and chondrocyte ferroptosis. This magnetothermal modulation of TRPV1 simultaneously attenuated synovitis and cartilage degeneration in mice incurred by destabilization of medial meniscus surgery, indicating the delayed OA progression. Furthermore, MNPs-TRPV1 with AMF exposure remarkably reduced knee pain sensitivity, alleviated the crippled gait, and improved spontaneous ambulatory activity performance in the mice OA model. Overall, this work provides a potential pathogenesis-based precise OA therapy with temporally and spatially magnetothermal modulation of TRPV1 in a controllable manner.
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Affiliation(s)
- Zhongyang Lv
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210008, China
- Department of Orthopedics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210002, China
| | - Peng Wang
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210008, China
| | - Weitong Li
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery,
Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, 321 Zhongshan Road, Nanjing 210008, Jiangsu, China
| | - Ya Xie
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery,
Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, 321 Zhongshan Road, Nanjing 210008, Jiangsu, China
| | - Wei Sun
- Department of orthopedic,
The Jiangyin Clinical College of Xuzhou Medical University, Jiangyin 214400, China
| | - Xiaoyu Jin
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery,
Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, 321 Zhongshan Road, Nanjing 210008, Jiangsu, China
| | - Ruiyang Jiang
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery,
Nanjing Drum Tower Hospital Clinical College of Xuzhou Medical University, 321 Zhongshan Road, Nanjing 210008, Jiangsu, China
| | - Yuxiang Fei
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210008, China
| | - Yuan Liu
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210008, China
| | - Tianshu Shi
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210008, China
| | - Hu Guo
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210008, China
| | - Ziying Sun
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210008, China
- Department of Orthopedics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210002, China
| | - Jintao Lin
- Department of Orthopedics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210002, China
| | - Xucai Wang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering,
Nanjing Forestry University, Nanjing, 210037, China
| | - Guihua Tan
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210008, China
| | - Yizhang Wu
- Department of Applied Physical Sciences,
The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nirong Bao
- Department of Orthopedics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210002, China
| | - Dongquan Shi
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School,
Nanjing University, Nanjing 210008, China
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12
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Liang M, Huai B, Lin J, Liang X, He H, Bai M, Wu H. Ca2+- and Zn2+-dependent nucleases co-participate in nuclear DNA degradation during programmed cell death in secretory cavity development in Citrus fruits. TREE PHYSIOLOGY 2024; 44:tpad122. [PMID: 37738622 DOI: 10.1093/treephys/tpad122] [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: 07/13/2023] [Revised: 09/06/2023] [Accepted: 09/19/2023] [Indexed: 09/24/2023]
Abstract
Calcium (Ca2+)- and zinc Zn2+-dependent nucleases play pivotal roles in plant nuclear DNA degradation in programmed cell death (PCD). However, the mechanisms by which these two nucleases co-participate in PCD-associated nuclear DNA degradation remain unclear. Here, the spatiotemporal expression patterns of two nucleases (CrCAN and CrENDO1) were analyzed qualitatively and quantitatively during PCD in secretory cavity formation in Citrus reticulata 'Chachi' fruits. Results show that the middle and late initial cell stages and lumen-forming stages are key stages for nuclear degradation during the secretory cavity development. CAN and ENDO1 exhibited potent in vitro DNA degradation activity at pH 8.0 and pH 5.5, respectively. Quantitative real-time reverse-transcription polymerase chain reaction, in situ hybridization assays, the subcellular localization of Ca2+ and Zn2+, and immunocytochemical localization showed that CrCAN was activated at the middle and late initial cell stages, while CrENDO1 was activated at the late initial cell and lumen-forming stages. Furthermore, we used immunocytochemical double-labelling to simultaneously locate CrCAN and CrENDO1. The DNA degradation activity of the two nucleases was verified by simulating the change of intracellular pH in vitro. Our results also showed that CrCAN and CrENDO1 worked respectively and co-participated in nuclear DNA degradation during PCD of secretory cavity cells. In conclusion, we propose the model for the synergistic effect of Ca2+- and Zn2+-dependent nucleases (CrCAN and CrENDO1) in co-participating in nuclear DNA degradation during secretory cavity cell PCD in Citrus fruits. Our findings provide direct experimental evidence for exploring different ion-dependent nucleases involved in nuclear degradation during plant PCD.
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Affiliation(s)
- Minjian Liang
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Wushan Road, Guangzhou 510642, China
- College of Biology and Food Engineering, Guangdong University of Education, Guangzhou 510303, China
| | - Bin Huai
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Wushan Road, Guangzhou 510642, China
| | - Junjun Lin
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Wushan Road, Guangzhou 510642, China
| | - Xiangxiu Liang
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Wushan Road, Guangzhou 510642, China
| | - Hanjun He
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Wushan Road, Guangzhou 510642, China
- Guangdong Technology Research Center for Traditional Chinese Veterinary Medicine and Natural Medicine, South China Agricultural University, Wushan Road, Guangzhou 510642, China
| | - Mei Bai
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Wushan Road, Guangzhou 510642, China
- Guangdong Technology Research Center for Traditional Chinese Veterinary Medicine and Natural Medicine, South China Agricultural University, Wushan Road, Guangzhou 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Wushan Road, Guangzhou 510642, China
| | - Hong Wu
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Wushan Road, Guangzhou 510642, China
- Guangdong Technology Research Center for Traditional Chinese Veterinary Medicine and Natural Medicine, South China Agricultural University, Wushan Road, Guangzhou 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Wushan Road, Guangzhou 510642, China
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13
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Pragati, Sarkar S. Reinstated Activity of Human Tau-induced Enhanced Insulin Signaling Restricts Disease Pathogenesis by Regulating the Functioning of Kinases/Phosphatases and Tau Hyperphosphorylation in Drosophila. Mol Neurobiol 2024; 61:982-1001. [PMID: 37674037 DOI: 10.1007/s12035-023-03599-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: 04/04/2023] [Accepted: 08/18/2023] [Indexed: 09/08/2023]
Abstract
Tauopathies such as Alzheimer's disease (AD), Frontotemporal dementia, and parkinsonism linked to chromosome 17 (FTDP-17), etc. are characterized by tau hyperphosphorylation and distinguished accumulation of paired helical filaments (PHFs)/or neurofibrillary tangles (NFTs) in a specific-neuronal subset of the brain. Among different reported risk factors, type 2 diabetes (T2D) has gained attention due to its correlation with tau pathogenesis. However, mechanistic details and the precise contribution of insulin pathway in tau etiology is still debatable. We demonstrate that expression of human tau causes overactivation of insulin pathway in Drosophila disease models. We subsequently noted that tissue-specific downregulation of insulin signaling or even exclusive reduction of its growth-promoting sub-branch effectively reinstates the overactivated insulin signaling pathway in human tau expressing cells, which in turn restricts pathogenic tau hyperphosphorylation and aggregate formation. It was further noted that restored tau phosphorylation was achieved due to a reestablished balance between the levels of different kinase(s) (GSK3β and ERK/P38 MAP kinase) and phosphatase (PP2A). Taken together, our study demonstrates a precise involvement of the insulin pathway and associated molecular events in the pathogenesis of human tauopathies in Drosophila, which will be immensely helpful in developing novel therapeutic options against these devastating human brain disorders. Moreover, our study reveals an interesting link between tau etiology and aberrant insulin signaling, which is a characteristic feature of Type 2 Diabetes.
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Affiliation(s)
- Pragati
- Department of Genetics, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021, India
| | - Surajit Sarkar
- Department of Genetics, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021, India.
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14
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Zhou D, Sun Y, Dong C, Wang Z, Zhao J, Li Z, Huang G, Li W. Folic acid alleviated oxidative stress-induced telomere attrition and inhibited apoptosis of neurocytes in old rats. Eur J Nutr 2024; 63:291-302. [PMID: 37870657 DOI: 10.1007/s00394-023-03266-x] [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: 04/17/2023] [Accepted: 10/03/2023] [Indexed: 10/24/2023]
Abstract
PURPOSE Oxidative stress has been reported to cause telomere attrition, which triggers cell apoptosis. Apoptosis of neurocytes may play an essential role in the pathogenesis of neurodegenerative diseases. This study hypothesized that folic acid (FA) supplementation decreased neurocyte apoptosis by alleviating oxidative stress-induced telomere attrition in 25-month-old Sprague Dawley (SD) rats. METHODS Three-month-old male SD rats were randomly divided into four diet groups by different concentrations of folic acid in equal numbers, with intervention for 22 months. Folate, homocysteine (Hcy), reactive oxygen species (ROS) levels, antioxidant activities, and telomere length in the brain tissues were tested at 11, 18, and 22 months of intervention, and 8-hydroxy-deoxyguanosine (8-OHdG) levels, neurocyte apoptosis and telomere length in the cerebral cortex and hippocampal regions were tested during the 22-month intervention. An automated chemiluminescence system, auto-chemistry analyzer, Q-FISH, qPCR, and TUNEL assay were used in this study. RESULTS The rats had lower folate concentrations and higher Hcy, ROS, and 8-OHdG concentrations in brain tissue with aging. However, FA supplementation increased folate concentrations and antioxidant activities while decreasing Hcy, ROS, and 8-OHdG levels in rat brain tissue after 11, 18, and 22 months of intervention. Furthermore, FA supplementation alleviated telomere length shortening and inhibited neurocyte apoptosis during the 22-month intervention. CONCLUSION FA supplementation alleviated oxidative stress-induced telomere attrition and inhibited apoptosis of neurocytes in 25-month-old rats.
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Affiliation(s)
- Dezheng Zhou
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Yue Sun
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Cuixia Dong
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Zehao Wang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Jing Zhao
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Zhenshu Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Guowei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Wen Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China.
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China.
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15
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Fu W, Liu G, Kim SH, Kim B, Kim OS, Ma G, Yang Y, Liu D, Zhu S, Kang JS, Kim O. Effects of 625 nm light-emitting diode irradiation on preventing ER stress-induced apoptosis via GSK-3β phosphorylation in MC3T3-E1. Photochem Photobiol 2024. [PMID: 38214077 DOI: 10.1111/php.13906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/13/2023] [Accepted: 12/29/2023] [Indexed: 01/13/2024]
Abstract
Prolonged endoplasmic reticulum (ER) stress contributes to cell apoptosis and interferes with bone homeostasis. Although photobiomodulation (PBM) might be used for ER stress-induced diseases, the role of PBM in relieving cell apoptosis remains unknown. During ER stress, glycogen synthase kinase-3β (GSK-3β) is critical; however, its functions in PBM remain uncertain. Thus, this study aimed to investigate the role of GSK-3β in 625 nm light-emitting diode irradiation (LEDI) relieving tunicamycin (TM)-induced apoptosis. Based on the results, pre-625 nm LEDI (Pre-IR) phosphorylated GSK-3β via ROS production. Compared with the TM group, Pre-IR + TM group reduced the phosphorylation of the α-subunit of eukaryotic translation initiation factor 2 (eIF-2α) and B-cell lymphoma protein 2 (Bcl-2)-associated X (Bax)/Bcl-2 ratio through regulating GSK-3β. Furthermore, a similar tendency was observed between Pre-IR + TM and Pre-LiCl+TM groups in preventing TM-induced early and late apoptosis. In summary, this study suggests that the Pre-IR treatment in TM-induced ER stress is beneficial for preventing cell apoptosis via GSK-3β phosphorylation.
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Affiliation(s)
- Wenqi Fu
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Guo Liu
- Department of Endodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - Sun-Hun Kim
- Department of Oral Anatomy, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - Byunggook Kim
- Department of Oral Medicine, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Ok-Su Kim
- Department of Periodontology, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Guowu Ma
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Dalian Medical University, Dalian, China
| | - Ying Yang
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Korea
- Dental Implant Center, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Danyang Liu
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Siyu Zhu
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Jae-Seok Kang
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Okjoon Kim
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Korea
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16
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Pushpan CK, Kresock DF, Ingersoll MA, Lutze RD, Keirns DL, Hunter WJ, Bashir K, Teitz T. Repurposing AZD5438 and Dabrafenib for Cisplatin-Induced AKI. J Am Soc Nephrol 2024; 35:22-40. [PMID: 37962623 PMCID: PMC10786615 DOI: 10.1681/asn.0000000000000261] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/09/2023] [Indexed: 11/15/2023] Open
Abstract
SIGNIFICANCE STATEMENT To combat both untoward effects of nephrotoxicity and ototoxicity in cisplatin-treated patients, two potential therapeutic oral anticancer drugs AZD5438 and dabrafenib, a phase-2 clinical trial protein kinase CDK2 inhibitor and an US Food and Drug Administration-approved drug BRAF inhibitor, respectively, were tested in an established mouse AKI model. Both drugs have previously been shown to protect significantly against cisplatin-induced hearing loss in mice. Each drug ameliorated cisplatin-induced increases in the serum biomarkers BUN, creatinine, and neutrophil gelatinase-associated lipocalin. Drugs also improved renal histopathology and inflammation, mitigated cell death by pyroptosis and necroptosis, and significantly enhanced overall survival of cisplatin-treated mice. BACKGROUND Cisplatin is an effective chemotherapy agent for a wide variety of solid tumors, but its use is dose-limited by serious side effects, including AKI and hearing loss. There are no US Food and Drug Administration-approved drugs to treat both side effects. Recently, two anticancer oral drugs, AZD5438 and dabrafenib, were identified as protective against cisplatin-induced hearing loss in mice. We hypothesize that similar cell stress and death pathways are activated in kidney and inner ear cells when exposed to cisplatin and tested whether these drugs alleviate cisplatin-induced AKI. METHODS The HK-2 cell line and adult FVB mice were used to measure the protection from cisplatin-induced cell death and AKI by these drugs. Serum markers of kidney injury, BUN, creatinine, and neutrophil gelatinase-associated lipocalin as well as histology of kidneys were analyzed. The levels of markers of kidney cell death, including necroptosis and pyroptosis, pERK, and proliferating cell nuclear antigen, were also examined by Western blotting and immunofluorescence. In addition, CDK2 knockout (KO) mice were used to confirm AZD5438 protective effect is through CDK2 inhibition. RESULTS The drugs reduced cisplatin-induced cell death in the HK-2 cell line and attenuated cisplatin-induced AKI in mice. The drugs reduced serum kidney injury markers, inhibited cell death, and reduced the levels of pERK and proliferating cell nuclear antigen, all of which correlated with prolonged animal survival. CDK2 KO mice were resistant to cisplatin-induced AKI, and AZD5438 conferred no additional protection in the KO mice. CONCLUSIONS Cisplatin-induced damage to the inner ear and kidneys shares similar cellular beneficial responses to AZD5438 and dabrafenib, highlighting the potential therapeutic use of these agents to treat both cisplatin-mediated kidney damage and hearing loss.
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Affiliation(s)
- Chithra K. Pushpan
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, Nebraska
| | - Daniel F. Kresock
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, Nebraska
| | - Matthew A. Ingersoll
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, Nebraska
| | - Richard D. Lutze
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, Nebraska
| | - Darby L. Keirns
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, Nebraska
| | - William J. Hunter
- Department of Pathology, Creighton University School of Medicine, Omaha, Nebraska
| | - Khalid Bashir
- Renal Division, Department of Medicine, CHI Nephrology and Creighton University Medical Center, Omaha, Nebraska
| | - Tal Teitz
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, Nebraska
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17
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Vann K, Weidner AE, Walczyk AC, Astapova O. Paxillin knockout in mouse granulosa cells increases fecundity†. Biol Reprod 2023; 109:669-683. [PMID: 37552051 PMCID: PMC10651069 DOI: 10.1093/biolre/ioad093] [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: 01/23/2023] [Revised: 05/29/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023] Open
Abstract
Paxillin is an intracellular adaptor protein involved in focal adhesions, cell response to stress, steroid signaling, and apoptosis in reproductive tissues. To investigate the role of paxillin in granulosa cells, we created a granulosa-specific paxillin knockout mouse model using Cre recombinase driven by the Anti-Müllerian hormone receptor 2 gene promoter. Female granulosa-specific paxillin knockout mice demonstrated increased fertility in later reproductive age, resulting in higher number of offspring when bred continuously up to 26 weeks of age. This was not due to increased numbers of estrous cycles, ovulated oocytes per cycle, or pups per litter, but this was due to shorter time to pregnancy and increased number of litters in the granulosa-specific paxillin knockout mice. The number of ovarian follicles was not significantly affected by the knockout at 30 weeks of age. Granulosa-specific paxillin knockout mice had slightly altered estrous cycles but no difference in circulating reproductive hormone levels. Knockout of paxillin using clustered regularly interspaced short palindromic repeat-associated protein 9 (CRISPR-Cas9) in human granulosa-derived immortalized KGN cells did not affect cell proliferation or migration. However, in cultured primary mouse granulosa cells, paxillin knockout reduced cell death under basal culture conditions. We conclude that paxillin knockout in granulosa cells increases female fecundity in older reproductive age mice, possibly by reducing granulosa cell death. This study implicates paxillin and its signaling network as potential granulosa cell targets in the management of age-related subfertility.
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Affiliation(s)
- Kenji Vann
- Division of Endocrinology, Department of Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Adelaide E Weidner
- Division of Endocrinology, Department of Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Ariana C Walczyk
- Division of Endocrinology, Department of Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Olga Astapova
- Division of Endocrinology, Department of Medicine, University of Rochester Medical Center, Rochester, NY, USA
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18
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Wang L, Zha H, Huang J, Shi L. Flavin containing monooxygenase 2 regulates renal tubular cell fibrosis and paracrine secretion via SMURF2 in AKI‑CKD transformation. Int J Mol Med 2023; 52:110. [PMID: 37800598 PMCID: PMC10558214 DOI: 10.3892/ijmm.2023.5313] [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: 06/30/2023] [Accepted: 09/22/2023] [Indexed: 10/07/2023] Open
Abstract
In the follow‑up of hospitalized patients with acute kidney injury (AKI), it has been observed that 15‑30% of these patients progress to develop chronic kidney disease (CKD). Impaired adaptive repair of the kidneys following AKI is a fundamental pathophysiological mechanism underlying renal fibrosis and the progression to CKD. Deficient repair of proximal tubular epithelial cells is a key factor in the progression from AKI to CKD. However, the molecular mechanisms involved in the regulation of fibrotic factor paracrine secretion by injured tubular cells remain incompletely understood. Transcriptome analysis and an ischemia‑reperfusion injury (IRI) model were used to identify the contribution of flavin‑containing monooxygenase 2 (FMO2) in AKI‑CKD. Lentivirus‑mediated overexpression of FMO2 was performed in mice. Functional experiments were conducted using TGF‑β‑induced tubular cell fibrogenesis and paracrine pro‑fibrotic factor secretion. Expression of FMO2 attenuated kidney injury induced by renal IRI, renal fibrosis, and immune cell infiltration into the kidneys. Overexpression of FMO2 not only effectively blocked TGF secretion in tubular cell fibrogenesis but also inhibited aberrant paracrine activation of pro‑fibrotic factors present in fibroblasts. FMO2 negatively regulated TGF‑β‑mediated SMAD2/3 activation by promoting the expression of SMAD ubiquitination regulatory factor 2 (SMURF2) and its nuclear translocation. During the transition from AKI to CKD, FMO2 modulated tubular cell fibrogenesis and paracrine secretion through SMURF2, thereby affecting the outcome of the disease.
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Affiliation(s)
- Longfei Wang
- Children's Hospital Affiliated to Zhengzhou University, Henan International Joint Laboratory of Prevention and Treatment of Pediatric Diseases, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Hongchu Zha
- Department of Nephrology, The First Clinical Medical College of Three Gorges University, Center People's Hospital of Yichang, Kidney Disease Research Institute of China Three Gorges University, Yichang, Hubei 443000, P.R. China
| | - Jing Huang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Lang Shi
- Department of Nephrology, The First Clinical Medical College of Three Gorges University, Center People's Hospital of Yichang, Kidney Disease Research Institute of China Three Gorges University, Yichang, Hubei 443000, P.R. China
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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19
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Gomes-Silva AP, Cunha de Medeiros PD, Silva LN, Da Silva Araújo Santiago M, Perobelli JE. Exposure to manganese during sertoli cell formation and proliferation disturbs early testicular development in rats. Reprod Toxicol 2023; 120:108447. [PMID: 37499885 DOI: 10.1016/j.reprotox.2023.108447] [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: 03/13/2023] [Revised: 07/12/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023]
Abstract
Manganese (Mn) is a metal and important micronutrient. However, exposure to supraphysiological levels of Mn, which occur through fungicides, atmospheric emissions, drainages, and spills, has been related to health risks, including morphometric changes in the male reproductive organs and impairment on gametogenesis and sperm quality, impacting the fertile ability of adult animals. Despite the relevance of the fetal/perinatal period for toxicological studies on Mn, previous data only deal with the physical and neurological development of the offspring, without mentioning their reproductive development. The present study investigated whether exposure to Mn during fetal/perinatal phase, specifically during the period of formation and proliferation of Sertoli cells, impairs the reproductive development of male offspring in early postnatal life. Therefore, pregnant Wistar rats were randomly distributed into 3 experimental groups: Ctl (received saline solution), Mn-9 (received 9 mg/kg of MnCl2), and Mn-90 (received 90 mg/kg of MnCl2). The female rats received the experimental treatment by gavage from gestational day 13 to lactational day 15, i.e., postnatal day (PND) 15 of the pups. Oxidative damage to the genetic material of germ and Sertoli cells, together with a decrease in connexin 43 immunolabeling were observed in the testis of male pups evaluated at PND 15. In addition, an increase in the seminiferous tubules presenting slight epithelium vacuolization and cells with eosinophilic cytoplasm were observed, without apparent epididymal changes. In conclusion, it was demonstrated that Mn perturbed the initial testicular development by altering Sertoli cell integrity through oxidative insult, which may compromise the spermatogenesis in the long-term.
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Affiliation(s)
- Ana Priscila Gomes-Silva
- Laboratory of Experimental Toxicology - LATOEX, Universidade Federal de São Paulo, Instituto do Mar, Carvalho de Mendonça, 144, 11070-100 Santos, SP, Brazil
| | - Paloma da Cunha de Medeiros
- Laboratory of Experimental Toxicology - LATOEX, Universidade Federal de São Paulo, Instituto do Mar, Carvalho de Mendonça, 144, 11070-100 Santos, SP, Brazil
| | - Laís Nogueira Silva
- Laboratory of Experimental Toxicology - LATOEX, Universidade Federal de São Paulo, Instituto do Mar, Carvalho de Mendonça, 144, 11070-100 Santos, SP, Brazil
| | - Marcella Da Silva Araújo Santiago
- Laboratory of Experimental Toxicology - LATOEX, Universidade Federal de São Paulo, Instituto do Mar, Carvalho de Mendonça, 144, 11070-100 Santos, SP, Brazil
| | - Juliana Elaine Perobelli
- Laboratory of Experimental Toxicology - LATOEX, Universidade Federal de São Paulo, Instituto do Mar, Carvalho de Mendonça, 144, 11070-100 Santos, SP, Brazil.
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20
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Krylov A, Yu S, Veen K, Newton A, Ye A, Qin H, He J, Jusuf PR. Heterogeneity in quiescent Müller glia in the uninjured zebrafish retina drive differential responses following photoreceptor ablation. Front Mol Neurosci 2023; 16:1087136. [PMID: 37575968 PMCID: PMC10413128 DOI: 10.3389/fnmol.2023.1087136] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 06/23/2023] [Indexed: 08/15/2023] Open
Abstract
Introduction Loss of neurons in the neural retina is a leading cause of vision loss. While humans do not possess the capacity for retinal regeneration, zebrafish can achieve this through activation of resident Müller glia. Remarkably, despite the presence of Müller glia in humans and other mammalian vertebrates, these cells lack an intrinsic ability to contribute to regeneration. Upon activation, zebrafish Müller glia can adopt a stem cell-like state, undergo proliferation and generate new neurons. However, the underlying molecular mechanisms of this activation subsequent retinal regeneration remains unclear. Methods/Results To address this, we performed single-cell RNA sequencing (scRNA-seq) and report remarkable heterogeneity in gene expression within quiescent Müller glia across distinct dorsal, central and ventral retina pools of such cells. Next, we utilized a genetically driven, chemically inducible nitroreductase approach to study Müller glia activation following selective ablation of three distinct photoreceptor subtypes: long wavelength sensitive cones, short wavelength sensitive cones, and rods. There, our data revealed that a region-specific bias in activation of Müller glia exists in the zebrafish retina, and this is independent of the distribution of the ablated cell type across retinal regions. Notably, gene ontology analysis revealed that injury-responsive dorsal and central Müller glia express genes related to dorsal/ventral pattern formation, growth factor activity, and regulation of developmental process. Through scRNA-seq analysis, we identify a shared genetic program underlying initial Müller glia activation and cell cycle entry, followed by differences that drive the fate of regenerating neurons. We observed an initial expression of AP-1 and injury-responsive transcription factors, followed by genes involved in Notch signaling, ribosome biogenesis and gliogenesis, and finally expression of cell cycle, chromatin remodeling and microtubule-associated genes. Discussion Taken together, our findings document the regional specificity of gene expression within quiescent Müller glia and demonstrate unique Müller glia activation and regeneration features following neural ablation. These findings will improve our understanding of the molecular pathways relevant to neural regeneration in the retina.
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Affiliation(s)
- Aaron Krylov
- School of BioSciences, University of Melbourne, Parkville, VIC, Australia
| | - Shuguang Yu
- State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Neuroscience, Chinese Academy of Sciences, Shanghai, China
| | - Kellie Veen
- School of BioSciences, University of Melbourne, Parkville, VIC, Australia
| | - Axel Newton
- School of BioSciences, University of Melbourne, Parkville, VIC, Australia
| | - Aojun Ye
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Huiwen Qin
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Jie He
- State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Neuroscience, Chinese Academy of Sciences, Shanghai, China
| | - Patricia R. Jusuf
- School of BioSciences, University of Melbourne, Parkville, VIC, Australia
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21
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Liu YL, Guo YH, Song XQ, Hu MX, Zhao ST. A method for analyzing programmed cell death in xylem development by flow cytometry. FRONTIERS IN PLANT SCIENCE 2023; 14:1196618. [PMID: 37360718 PMCID: PMC10288846 DOI: 10.3389/fpls.2023.1196618] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/24/2023] [Indexed: 06/28/2023]
Abstract
Programmed cell death (PCD) is a genetically regulated developmental process leading to the death of specific types of plant cells, which plays important roles in plant development and growth such as wood formation. However, an efficient method needs to be established to study PCD in woody plants. Flow cytometry is widely utilized to evaluate apoptosis in mammalian cells, while it is rarely used to detect PCD in plants, especially in woody plants. Here, we reported that the xylem cell protoplasts from poplar stem were stained with a combination of fluorescein annexin V-FITC and propidium iodide (PI) and then sorted by flow cytometry. As expected, living cells (annexin V-FITC negative/PI negative), early PCD cells (annexin V-FITC positive/PI negative), and late PCD cells (annexin V-FITC positive/PI positive) could be finely distinguished through this method and then subjected for quantitative analysis. The expression of cell-type- and developmental stages-specific marker genes was consistent with the cell morphological observation. Therefore, the newly developed fluorescence-activated cell sorting (FACS) method can be used to study PCD in woody plants, which will be beneficial for studying the molecular mechanisms of wood formation.
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Affiliation(s)
- Ying-Li Liu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, China
| | - Ying-Hua Guo
- National Center for Protein Sciences at Peking University, Beijing, China
| | - Xue-Qin Song
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
| | - Meng-Xuan Hu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
| | - Shu-Tang Zhao
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
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22
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Nguyen LTT, Le XT, Pham HNT, Van Nguyen T, Nguyen PT, Van Thi Pham A, Nguyen TBT, Matsumoto K. Therapeutic effects of a standardized-flavonoid Diospyros kaki L.f. leaf extract on transient focal cerebral ischemia-induced brain injury in mice. J Nat Med 2023; 77:544-560. [PMID: 37115470 DOI: 10.1007/s11418-023-01699-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023]
Abstract
This study aimed to investigate the neuroprotective and therapeutic effects of Diospyros kaki L.f. leaves (DK) on transient focal cerebral ischemic injury and underlying mechanisms using a middle cerebral artery occlusion (MCAO) model of mice. The animals received the MCAO operation on day 0. The daily administrations of DK (50 and 100 mg/kg, p.o) and edaravone (6 mg/kg, i.v), a reference drug with radical scavenging activity, were started 7 days before (pre-treatment) or immediately after the MCAO operation (post-treatment) and continued during the experimental period. Histochemical, biochemical, and neurological changes and cognitive performance were evaluated. MCAO caused cerebral infarction and neuronal cell loss in the cortex, striatum, and hippocampus in a manner accompanied by spatial cognitive deficits. These neurological and cognitive impairments caused by MCAO were significantly attenuated by pre- and post-ischemic treatments with DK and edaravone, suggesting that DK, like edaravone, has therapeutic potential for cerebral ischemia-induced brain damage. DK and edaravone suppressed MCAO-induced changes in biomarkers for apoptosis (TUNEL-positive cell number and cleaved caspase-3 protein expression) and oxidative stress (glutathione and malondialdehyde contents) in the brain. Interestingly, DK, but not edaravone, mitigated an increase in blood-brain permeability and down-regulation of vascular endothelial growth factor protein expression caused by MCAO. Although the exact chemical constituents implicated in the effects of DK remain to be clarified, the present results indicate that DK exerts neuroprotective and therapeutic activity against transient focal cerebral ischemia-induced injury probably by suppressing oxidative stress, apoptotic process, and mechanisms impairing blood-brain barrier integrity in the brain.
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Affiliation(s)
- Loan Thanh Thi Nguyen
- Department of Pharmacology and Biochemistry, National Institute of Medicinal Materials, Hanoi, 10000, Vietnam
- Department of Pharmacology, Hanoi Medical University, Hanoi, 10000, Vietnam
| | - Xoan Thi Le
- Department of Pharmacology and Biochemistry, National Institute of Medicinal Materials, Hanoi, 10000, Vietnam.
| | - Hang Nguyet Thi Pham
- Department of Pharmacology and Biochemistry, National Institute of Medicinal Materials, Hanoi, 10000, Vietnam
| | - Tai Van Nguyen
- Department of Phytochemistry, National Institute of Medicinal Materials, Hanoi, 10000, Vietnam
| | - Phuong Thi Nguyen
- Department of Pharmacology and Biochemistry, National Institute of Medicinal Materials, Hanoi, 10000, Vietnam
| | - Anh Van Thi Pham
- Department of Pharmacology, Hanoi Medical University, Hanoi, 10000, Vietnam
| | | | - Kinzo Matsumoto
- Graduate School of Pharmaceutical Sciences, Daiichi University of Pharmacy, Fukuoka, 815-8511, Japan
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23
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da Silva MC, Fabiano LC, da Costa Salomão KC, de Freitas PLZ, Neves CQ, Borges SC, de Souza Carvalho MDG, Breithaupt-Faloppa AC, de Thomaz AA, Dos Santos AM, Buttow NC. A Rodent Model of Human-Dose-Equivalent 5-Fluorouracil: Toxicity in the Liver, Kidneys, and Lungs. Antioxidants (Basel) 2023; 12:antiox12051005. [PMID: 37237871 DOI: 10.3390/antiox12051005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
5-Fluorouracil (5-FU) is a chemotherapy drug widely used to treat a range of cancer types, despite the recurrence of adverse reactions. Therefore, information on its side effects when administered at a clinically recommended dose is relevant. On this basis, we examined the effects of the 5-FU clinical treatment on the integrity of the liver, kidneys, and lungs of rats. For this purpose, 14 male Wistar rats were divided into treated and control groups and 5-FU was administered at 15 mg/kg (4 consecutive days), 6 mg/kg (4 alternate days), and 15 mg/kg on the 14th day. On the 15th day, blood, liver, kidney, and lung samples were collected for histological, oxidative stress, and inflammatory evaluations. We observed a reduction in the antioxidant markers and an increase in lipid hydroperoxides (LOOH) in the liver of treated animals. We also detected elevated levels of inflammatory markers, histological lesions, apoptotic cells, and aspartate aminotransferase. Clinical treatment with 5-FU did not promote inflammatory or oxidative alterations in the kidney samples; however, histological and biochemical changes were observed, including increased serum urea and uric acid. 5-FU reduces endogenous antioxidant defenses and increases LOOH levels in the lungs, suggesting oxidative stress. Inflammation and histopathological alterations were also detected. The clinical protocol of 5-FU promotes toxicity in the liver, kidneys, and lungs of healthy rats, resulting in different levels of histological and biochemical alterations. These results will be useful in the search for new adjuvants to attenuate the adverse effects of 5-FU in such organs.
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Affiliation(s)
- Mariana Conceição da Silva
- Biological Physics and Cell Signaling Laboratory, Institute of Biology, Department of Structural and Functional Biology, State University of Campinas, Campinas 13083-970, SP, Brazil
| | - Lilian Catarim Fabiano
- Department of Morphological Science, State University of Maringá, Maringá 87020-900, PR, Brazil
| | | | | | - Camila Quaglio Neves
- Department of Morphological Science, State University of Maringá, Maringá 87020-900, PR, Brazil
| | | | - Maria das Graças de Souza Carvalho
- Biological Physics and Cell Signaling Laboratory, Institute of Biology, Department of Structural and Functional Biology, State University of Campinas, Campinas 13083-970, SP, Brazil
| | - Ana Cristina Breithaupt-Faloppa
- Laboratório de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo 01246-904, SP, Brasil
| | - André Alexandre de Thomaz
- Quantum Electronic Department, Institute of Physics Gleb Wataghin, State University of Campinas, Campinas 13083-872, SP, Brazil
| | - Aline Mara Dos Santos
- Biological Physics and Cell Signaling Laboratory, Institute of Biology, Department of Structural and Functional Biology, State University of Campinas, Campinas 13083-970, SP, Brazil
| | - Nilza Cristina Buttow
- Department of Morphological Science, State University of Maringá, Maringá 87020-900, PR, Brazil
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Spatio-temporal dynamics enhance cellular diversity, neuronal function and further maturation of human cerebral organoids. Commun Biol 2023; 6:173. [PMID: 36788328 PMCID: PMC9926461 DOI: 10.1038/s42003-023-04547-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 02/02/2023] [Indexed: 02/16/2023] Open
Abstract
The bioengineerined and whole matured human brain organoids stand as highly valuable three-dimensional in vitro brain-mimetic models to recapitulate in vivo brain development, neurodevelopmental and neurodegenerative diseases. Various instructive signals affecting multiple biological processes including morphogenesis, developmental stages, cell fate transitions, cell migration, stem cell function and immune responses have been employed for generation of physiologically functional cerebral organoids. However, the current approaches for maturation require improvement for highly harvestable and functional cerebral organoids with reduced batch-to-batch variabilities. Here, we demonstrate two different engineering approaches, the rotating cell culture system (RCCS) microgravity bioreactor and a newly designed microfluidic platform (µ-platform) to improve harvestability, reproducibility and the survival of high-quality cerebral organoids and compare with those of traditional spinner and shaker systems. RCCS and µ-platform organoids have reached ideal sizes, approximately 95% harvestability, prolonged culture time with Ki-67 + /CD31 + /β-catenin+ proliferative, adhesive and endothelial-like cells and exhibited enriched cellular diversity (abundant neural/glial/ endothelial cell population), structural brain morphogenesis, further functional neuronal identities (glutamate secreting glutamatergic, GABAergic and hippocampal neurons) and synaptogenesis (presynaptic-postsynaptic interaction) during whole human brain development. Both organoids expressed CD11b + /IBA1 + microglia and MBP + /OLIG2 + oligodendrocytes at high levels as of day 60. RCCS and µ-platform organoids showing high levels of physiological fidelity a high level of physiological fidelity can serve as functional preclinical models to test new therapeutic regimens for neurological diseases and benefit from multiplexing.
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Hesperidin Induced HePG-2 Cell Apoptosis through ROS-Mediated p53/Bcl-2/Bax and p-mTOR Signaling Pathways. J Food Biochem 2023. [DOI: 10.1155/2023/3788655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Recently, research showed that one of the most common kinds of liver cancer is hepatocellular carcinoma (HCC), which is also the fourth main cause of cancer deaths. In studies regarding chemicals to better treat the disease, hesperidin shows a novel potential in performing anticancer activities, particularly in liver cancer. However, the specific mechanism of hesperidin that causes such activities remains a mystery. Thus, the purpose of this study is to investigate hesperidin’s effect on cell proliferation and activation of ROS-mediated signaling pathways in HePG-2 cells. Hesperidin shows a significant impact on inhibiting HePG-2 cells’ proliferation through induction of cell apoptosis by Bcl-2, Bax, and p53 pathways. Treating cells with hesperidin in a dose-dependent manner shows a significant increase in the apoptotic cell population (sub-G1). Moreover, Hesperidin’s induction of apoptotic activities shows dependence on ROS (reactive oxygen species) overproduction, further affecting the p-mTOR pathways and leading to DNA damage. Hence, the overall data demonstrate that ROS-mediated signaling pathways exhibit mechanisms that may lead to useful information for interpreting hesperidin-induced hepatocarcinoma cell apoptosis.
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26
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Liang RN, Yan DQ, Zhang XP, Chen X, Zhang WH, Jia HL. Kidney Mesenchymal stem cells alleviate cisplatin-induced kidney injury and apoptosis in rats. Tissue Cell 2023; 80:101998. [PMID: 36529038 DOI: 10.1016/j.tice.2022.101998] [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: 06/27/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE This experiment was designed to demonstrate Mesenchymal stem cells (MSCs) derived from kidney can alleviate cisplatin-induced kidney injury and renal cell apoptosis through paracrine pathway. METHODS Firstly, MSCs were isolated from kidney of young rats, and their surface-specific markers were identified by Reverse Transcription-Polymerase Chain Reaction (RT-PCR) and immunofluorescence staining. Self-renewal ability of Kidney Mesenchymal Stem Cells (KMSCs) was observed by cell counting and 5-Bromo-2'-deoxyuridine (BrdU) fluorescence staining. KMSCs at logarithmic growth stage were traced and injected into rat through tail vein. RESULTS The results showed that KMSCs homed in the kidney tissues, decreased the secretion of inflammatory factors (CRP, TNFα, IL-1β, IL-6), and alleviated renal function. Hematoxylin and Eosin (H&E), Masson and Periodic Acid-silver Methenamine (PASM) staining showed that KMSCs could alleviate pathological damage in rats. Terminal Deoxynucleotidyl Transferase mediated dUTP Nick-End Labeling (TUNEL) assay showed that KMSCs could reduce the apoptosis of rat kidney cells induced by cisplatin. Finally, Immunohistochemistry (IHC) results showed that cisplatin could induce higher expression of the pro-apoptotic protein Bax and lower expression of anti-apoptotic Bcl-2 in kidney tissues. However, KMSCs could reverse the pro-apoptotic effect of cisplatin on kidney cells and improve the survival rate of rats. CONCLUSIONS In conclusion, KMSCs were successfully isolated from kidney tissues, and KMSCs have therapeutic effects on rat kidney injury induced by cisplatin.
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Affiliation(s)
- Rui-Ning Liang
- Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang 830099, PR China; Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi, Xinjiang 830000, PR China.
| | - De-Qi Yan
- Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang 830099, PR China; Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi, Xinjiang 830000, PR China
| | - Xing-Ping Zhang
- Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang 830099, PR China; Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi, Xinjiang 830000, PR China.
| | - Xu Chen
- Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang 830099, PR China; Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi, Xinjiang 830000, PR China
| | - Wen-Hui Zhang
- Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang 830099, PR China; Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi, Xinjiang 830000, PR China
| | - Hong-Lin Jia
- Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang 830099, PR China; Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi, Xinjiang 830000, PR China
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Kudo T, Nakazawa D, Watanabe-Kusunoki K, Kanda M, Shiratori-Aso S, Abe N, Nishio S, Koga JI, Iwasaki S, Tsuji T, Fukasawa Y, Yamasaki M, Watanabe M, Masuda S, Tomaru U, Murakami M, Aratani Y, Ishizu A, Atsumi T. Regulation of NETosis and Inflammation by Cyclophilin D in Myeloperoxidase-Positive Antineutrophil Cytoplasmic Antibody-Associated Vasculitis. Arthritis Rheumatol 2023; 75:71-83. [PMID: 35905194 DOI: 10.1002/art.42314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 05/19/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is pathologically characterized by focal fibrinoid necrosis, in which ANCA-mediated neutrophil extracellular trap (NET) formation and subsequent endothelial cell necrosis occur. Cyclophilin D (CypD) plays an important role in mediation of cell necrosis and inflammation via the opening of mitochondrial permeability transition pores. This study was undertaken to examine the role of CypD in AAV pathogenesis. METHODS We assessed the role and mechanism of CypD in ANCA-stimulated neutrophils in vitro by immunostaining and electron microscopy observation. We performed a comprehensive RNA-sequencing analysis on ANCA-treated murine neutrophils. To investigate the role of CypD in vivo, we assessed disease features in CypD-knockout mice and wild-type mice using 2 different murine AAV models: anti-myeloperoxidase IgG transfer-induced AAV and spontaneous AAV. RESULTS In vitro experiments showed that pharmacologic and genetic inhibition of CypD suppressed ANCA-induced NET formation via the suppression of reactive oxygen species and cytochrome c release from the mitochondria. RNA-sequencing analyses in ANCA-treated murine neutrophils revealed the involvement of inflammatory responses, with CypD deficiency reducing ANCA-induced alterations in gene expression. Furthermore, analyses of upstream regulators revealed the relevance of intracellular calcium (CypD activator) and cyclosporin (CypD inhibitor) in ANCA stimulation, indicating that the CypD-dependent opening of mitochondrial permeability transition pores is associated with ANCA-induced neutrophil activation and NETosis. In both AAV mouse models, the genetic deletion of CypD ameliorated crescentic glomerulonephritis via the inhibition of CypD-dependent neutrophil and endothelial necrosis. CONCLUSION CypD targeting is a novel and specific therapeutic strategy for AAV via the resolution of necrotizing vasculitis.
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Affiliation(s)
- Takashi Kudo
- Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Daigo Nakazawa
- Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kanako Watanabe-Kusunoki
- Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masatoshi Kanda
- Department of Rheumatology and Clinical Immunology, Sapporo Medical University, Sapporo, Japan
| | - Satoka Shiratori-Aso
- Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Nobuya Abe
- Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, and Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Saori Nishio
- Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Jun-Ichiro Koga
- Department of Cardiovascular Medicine, Kyushu University, Graduate School of Medical Sciences, Fukuoka, Japan
| | - Sari Iwasaki
- Department of Pathology, Sapporo City General Hospital, Sapporo, Japan
| | - Takahiro Tsuji
- Department of Pathology, Sapporo City General Hospital, Sapporo, Japan
| | - Yuichiro Fukasawa
- Department of Pathology, Sapporo City General Hospital, Sapporo, Japan
| | - Miwako Yamasaki
- Department of Anatomy, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Masahiko Watanabe
- Department of Anatomy, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Sakiko Masuda
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Utano Tomaru
- Department of Pathology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masaaki Murakami
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yasuaki Aratani
- Graduate School of Nanobioscience, Yokohama City University, Yokohama, Japan
| | - Akihiro Ishizu
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Tatsuya Atsumi
- Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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Jung WK, Park SB, Yu HY, Kim YH, Kim J. Antioxidant Efficacy of Esculetin against Tert-Butyl Hydroperoxide-Induced Oxidative Stress in HEK293 Cells. Curr Issues Mol Biol 2022; 44:5986-5994. [PMID: 36547068 PMCID: PMC9777115 DOI: 10.3390/cimb44120407] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022] Open
Abstract
Esculetin is an antioxidant and anti-inflammatory compound derived from coumarin. Oxidative stress can cause overproduction of reactive oxygen species (ROS), which can lead to the development of chronic kidney failure. In this study, human embryonic kidney 293 (HEK293) cells were treated with tert-butyl hydroperoxide (t-BHP) to determine the antioxidant effects of esculetin. HEK293 cells were treated with t-BHP to validate changes in cell viability, ROS production, and apoptosis, and then treated with esculetin to evaluate the changes. Changes in mRNA and protein levels were analyzed using a proteome kit, PCR, and Western blotting. Esculetin improved HEK293 cell viability and reduced apoptosis caused by t-BHP-induced oxidative stress. At the mRNA and protein levels, esculetin decreased pro-apoptotic factor expression as well as increased anti-apoptotic factor expression. The antioxidant efficacy of esculetin was validated when it inhibited the apoptosis caused by t-BHP-induced oxidative stress in HEK293 cells.
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Affiliation(s)
| | | | | | | | - Junghyun Kim
- Correspondence: ; Tel.: +82-63-270-4032; Fax: +82-63-270-4025
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29
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Efficacy of Clinically Used PARP Inhibitors in a Murine Model of Acute Lung Injury. Cells 2022; 11:cells11233789. [PMID: 36497049 PMCID: PMC9738530 DOI: 10.3390/cells11233789] [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: 10/25/2022] [Revised: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Poly(ADP-ribose) polymerase 1 (PARP1), as a potential target for the experimental therapy of acute lung injury (ALI), was identified over 20 years ago. However, clinical translation of this concept was not possible due to the lack of clinically useful PARP inhibitors. With the clinical introduction of several novel, ultrapotent PARP inhibitors, the concept of PARP inhibitor repurposing has re-emerged. Here, we evaluated the effect of 5 clinical-stage PARP inhibitors in oxidatively stressed cultured human epithelial cells and monocytes in vitro and demonstrated that all inhibitors (1-30 µM) provide a comparable degree of cytoprotection. Subsequent in vivo studies using a murine model of ALI compared the efficacy of olaparib and rucaparib. Both inhibitors (1-10 mg/kg) provided beneficial effects against lung extravasation and pro-inflammatory mediator production-both in pre- and post-treatment paradigms. The underlying mechanisms include protection against cell dysfunction/necrosis, inhibition of NF-kB and caspase 3 activation, suppression of the NLRP3 inflammasome, and the modulation of pro-inflammatory mediators. Importantly, the efficacy of PARP inhibitors was demonstrated without any potentiation of DNA damage, at least as assessed by the TUNEL method. These results support the concept that clinically approved PARP inhibitors may be repurposable for the experimental therapy of ALI.
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30
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Light- and Redox-Responsive Block Copolymers of mPEG-SS-ONBMA as a Smart Drug Delivery Carrier for Cancer Therapy. Pharmaceutics 2022; 14:pharmaceutics14122594. [PMID: 36559088 PMCID: PMC9788424 DOI: 10.3390/pharmaceutics14122594] [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: 10/15/2022] [Revised: 11/05/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022] Open
Abstract
The development of stimuli-responsive polymeric micelles for targeted drug delivery has attracted much research interest in improving therapeutic outcomes. This study designs copolymers responsive to ultraviolet (UV) light and glutathione (GSH). A disulfide linkage is positioned between a hydrophilic poly(ethylene glycol) monomethyl ether (mPEG) and a hydrophobic o-nitrobenzyl methacrylate (ONBMA) to yield amphiphilic copolymers termed mPEG-SS-pONBMA. Three copolymers with different ONBMA lengths are synthesized and formulated into micelles. An increase in particle size and a decrease in critical micelle concentration go together with increasing ONBMA lengths. The ONB cleavage from mPEG-SS-pONBMA-formed micelles results in the transformation of hydrophobic cores into hydrophilic ones, accelerating drug release from the micelles. Obvious changes in morphology and molecular weight of micelles upon combinational treatments account for the dual-stimuli responsive property. Enhancement of a cell-killing effect is clearly observed in doxorubicin (DOX)-loaded micelles containing disulfide bonds compared with those containing dicarbon bonds upon UV light irradiation. Collectedly, the dual-stimuli-responsive mPEG-SS-pONBMA micelle is a better drug delivery carrier than the single-stimuli-responsive mPEG-CC-pONBMA micelle. After HT1080 cells were treated with the DOX-loaded micelles, the high expression levels of RIP-1 and MLKL indicate that the mechanism involved in cell death is mainly via the DOX-induced necroptosis pathway.
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31
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Yamamoto K, Okabe M, Tanaka K, Yokoo T, Pastan I, Araoka T, Osafune K, Udagawa T, Koizumi M, Matsusaka T. Podocytes are lost from glomeruli before completing apoptosis. Am J Physiol Renal Physiol 2022; 323:F515-F526. [PMID: 36049065 PMCID: PMC9602714 DOI: 10.1152/ajprenal.00080.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 08/05/2022] [Accepted: 08/23/2022] [Indexed: 12/14/2022] Open
Abstract
Although apoptosis of podocytes has been widely reported in in vitro studies, it has been less frequently and less definitively documented in in vivo situations. To investigate this discrepancy, we analyzed the dying process of podocytes in vitro and in vivo using LMB2, a human (h)CD25-directed immunotoxin. LMB2 induced cell death within 2 days in 56.8 ± 13.6% of cultured podocytes expressing hCD25 in a caspase-3, Bak1, and Bax-dependent manner. LMB2 induced typical apoptotic features, including TUNEL staining and fragmented nuclei without lactate dehydrogenase leakage. In vivo, LMB2 effectively eliminated hCD25-expressing podocytes in NEP25 mice. Podocytes injured by LMB2 were occasionally stained for cleaved caspase-3 and cleaved lamin A but never for TUNEL. Urinary sediment contained TUNEL-positive podocytes. To examine the effect of glomerular filtration, we performed unilateral ureteral obstruction in NEP25 mice treated with LMB2 1 day before euthanasia. In the obstructed kidney, glomeruli contained significantly more cleaved lamin A-positive podocytes than those in the contralateral kidney (50.1 ± 5.4% vs. 29.3 ± 4.1%, P < 0.001). To further examine the dying process without glomerular filtration, we treated kidney organoids generated from nephron progenitor cells of NEP25 mice with LMB2. Podocytes showed TUNEL staining and nuclear fragmentation. These results indicate that on activation of apoptotic caspases, podocytes are detached and lost in the urine before nuclear fragmentation and that the physical force of glomerular filtration facilitates detachment. This phenomenon may be the reason why definitive apoptosis is not observed in podocytes in vivo.NEW & NOTEWORTHY This report clarifies why morphologically definitive apoptosis is not observed in podocytes in vivo. When caspase-3 is activated in podocytes, these cells are immediately detached from the glomerulus and lost in the urine before DNA fragmentation occurs. Detachment is facilitated by glomerular filtration. This phenomenon explains why podocytes in vivo rarely show TUNEL staining and never apoptotic bodies.
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Affiliation(s)
- Kazuyoshi Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
- Department of Basic Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
- Department of Basic Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Keiko Tanaka
- Department of Basic Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ira Pastan
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Toshikazu Araoka
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Kenji Osafune
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Tomohiro Udagawa
- Department of Basic Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Masahiro Koizumi
- Department of Internal Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Taiji Matsusaka
- Department of Basic Medicine, Tokai University School of Medicine, Isehara, Japan
- Institute of Medical Science, Tokai University School of Medicine, Isehara, Japan
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32
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Single cell RNA-seq analysis identifies ferroptotic chondrocyte cluster and reveals TRPV1 as an anti-ferroptotic target in osteoarthritis. EBioMedicine 2022; 84:104258. [PMID: 36137413 PMCID: PMC9494174 DOI: 10.1016/j.ebiom.2022.104258] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 12/29/2022] Open
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33
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Garg S, Garg TK, Miousse IR, Wise SY, Fatanmi OO, Savenka AV, Basnakian AG, Singh VK, Hauer-Jensen M. Effects of Gamma-Tocotrienol on Partial-Body Irradiation-Induced Intestinal Injury in a Nonhuman Primate Model. Antioxidants (Basel) 2022; 11:1895. [PMID: 36290618 PMCID: PMC9598988 DOI: 10.3390/antiox11101895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/16/2022] [Accepted: 09/19/2022] [Indexed: 11/17/2022] Open
Abstract
Exposure to high doses of radiation, accidental or therapeutic, often results in gastrointestinal (GI) injury. To date, there are no therapies available to mitigate GI injury after radiation exposure. Gamma-tocotrienol (GT3) is a promising radioprotector under investigation in nonhuman primates (NHP). We have shown that GT3 has radioprotective function in intestinal epithelial and crypt cells in NHPs exposed to 12 Gy total-body irradiation (TBI). Here, we determined GT3 potential in accelerating the GI recovery in partial-body irradiated (PBI) NHPs using X-rays, sparing 5% bone marrow. Sixteen rhesus macaques were treated with either vehicle or GT3 24 h prior to 12 Gy PBI. Structural injuries and crypt survival were examined in proximal jejunum on days 4 and 7. Plasma citrulline was assessed using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Crypt cell proliferation and apoptotic cell death were evaluated using Ki-67 and TUNEL staining. PBI significantly decreased mucosal surface area and reduced villous height. Interestingly, GT3 increased crypt survival and enhanced stem cell proliferation at day 4; however, the effects seemed to be minimized by day 7. GT3 did not ameliorate a radiation-induced decrease in citrulline levels. These data suggest that X-rays induce severe intestinal injury post-PBI and that GT3 has minimal radioprotective effect in this novel model.
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Affiliation(s)
- Sarita Garg
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Tarun K. Garg
- UAMS Myeloma Center, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Isabelle R. Miousse
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Stephen Y. Wise
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Oluseyi O. Fatanmi
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Alena V. Savenka
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Alexei G. Basnakian
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- John L. McClellan Memorial VA Hospital, Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA
| | - Vijay K. Singh
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Martin Hauer-Jensen
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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Wu B, Yu J, Luo Y, Wu L, Zhang Z, Deng L. An Albumin-Enriched Nanocomplex Achieves Systemic Delivery of Clopidogrel Bisulfate to Ameliorate Renal Ischemia Reperfusion Injury in Rats. Mol Pharm 2022; 19:3934-3947. [PMID: 36067352 DOI: 10.1021/acs.molpharmaceut.2c00401] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, an albumin-enriched nanocomplex was developed for the solubilization and intravascular administration of clopidogrel bisulfate (CLP). In particular, CLP nanoparticles (HS-CLP-NPs) were synthesized via an improved nab-technology method using Solutol HS-15, and bovine serum albumin (BSA) was further enriched on the nanoparticle surface forming a protein corona (BH-CLP-NPs). BH-CLP-NPs displayed an average size of 163.4 ± 10.5 nm, a zeta potential of 1.85 ± 0.03 mV, an encapsulation efficiency of 99.9%, and a drug loading capacity of 32.9%. The cumulative release of CLP from BH-CLP-NPs reached about 60% within 168 h. The pharmacokinetic study on the CLP metabolite indicated that the BSA-enriched nanoparticle showed greater in vivo exposure. Pharmacodynamic studies in the renal ischemia/reperfusion injury rat model further demonstrated the renal protective effect of systemically administered BH-CLP-NPs against acute kidney injury with significantly downregulated blood urea nitrogen and creatinine levels. Overall, the albumin-enriched nanocomplexes offer a neat and efficient strategy for the development of poorly water-soluble drugs to achieve intravascular administration.
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Affiliation(s)
- Bangqing Wu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.,Guiyang Public Health Clinical Center, Guiyang 550000, China
| | - Jiaojiao Yu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yiting Luo
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.,College of Pharmacy, Southwest Minzu University, Chengdu 610041, China
| | - Lijun Wu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zhirong Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Li Deng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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35
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Liao CM, Wulfmeyer VC, Chen R, Erlangga Z, Sinning J, von Mässenhausen A, Sörensen-Zender I, Beer K, von Vietinghoff S, Haller H, Linkermann A, Melk A, Schmitt R. Induction of ferroptosis selectively eliminates senescent tubular cells. Am J Transplant 2022; 22:2158-2168. [PMID: 35607817 DOI: 10.1111/ajt.17102] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 04/27/2022] [Accepted: 05/22/2022] [Indexed: 01/25/2023]
Abstract
The accumulation of senescent cells is an important contributor to kidney aging, chronic renal disease, and poor outcome after kidney transplantation. Approaches to eliminate senescent cells with senolytic compounds have been proposed as novel strategies to improve marginal organs. While most existing senolytics induce senescent cell clearance by apoptosis, we observed that ferroptosis, an iron-catalyzed subtype of regulated necrosis, might serve as an alternative way to ablate senescent cells. We found that murine kidney tubular epithelial cells became sensitized to ferroptosis when turning senescent. This was linked to increased expression of pro-ferroptotic lipoxygenase-5 and reduced expression of anti-ferroptotic glutathione peroxidase 4 (GPX4). In tissue slice cultures from aged kidneys low dose application of the ferroptosis-inducer RSL3 selectively eliminated senescent cells while leaving healthy tubular cells unaffected. Similar results were seen in a transplantation model, in which RSL3 reduced the senescent cell burden of aged donor kidneys and caused a reduction of damage and inflammatory cell infiltration during the early post-transplantation period. In summary, these data reveal an increased susceptibility of senescent tubular cells to ferroptosis with the potential to be exploited for selective reduction of renal senescence in aged kidney transplants.
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Affiliation(s)
- Chieh M Liao
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany
| | - Vera C Wulfmeyer
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany
| | - Rongjun Chen
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Medical School Hannover, Hannover, Germany
| | - Zulrahman Erlangga
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Medical School Hannover, Hannover, Germany
| | - Julius Sinning
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany
| | - Anne von Mässenhausen
- Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische University of Dresden, Dresden, Germany
| | - Inga Sörensen-Zender
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany
| | - Kristina Beer
- Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische University of Dresden, Dresden, Germany
| | - Sibylle von Vietinghoff
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany.,Nephrology Section, First Medical Clinic, University Clinic and Rheinische Friedrich-Wilhelms Universität Bonn, Bonn, Germany
| | - Hermann Haller
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany
| | - Andreas Linkermann
- Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische University of Dresden, Dresden, Germany
| | - Anette Melk
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Medical School Hannover, Hannover, Germany
| | - Roland Schmitt
- Department of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany
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Nandi S, Ahmed S, Saxena AK. Exploring the Role of Antioxidants to Combat Oxidative Stress in Malaria Parasites. Curr Top Med Chem 2022; 22:2029-2044. [PMID: 35382719 DOI: 10.2174/1568026622666220405121643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 02/06/2022] [Accepted: 02/18/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Malaria, a global challenge, is a parasitic disease caused by Plasmodium species. Approximately 229 million cases of malaria were reported in 2019. Major incidences occur in various continents, including African and Eastern Mediterranean Continents and South-East Asia. INTRODUCTION Despite the overall decline in global incidence from 2010 to 2018, the rate of decline has been almost constant since 2014. The morbidity and mortality have been accelerated due to reactive oxygen species (ROS) caused by oxidative stress generated by the parasite responsible for the destruction of host metabolism and cell nutrients. METHODS The excessive release of free radicals is associated with the infection in the animal or human body by the parasites. This may be related to a reduction in nutrients required for the generation of antioxidants and the destruction of cells by parasite activity. Therefore, an intensive literature search has been carried out to find the natural antioxidants used to neutralize the free radicals generated during malarial infection. RESULTS The natural antioxidants may be useful as an adjuvant treatment along with the antimalarial chemotherapeutics to reduce the death rate and enhance the success rate of malaria treatment. CONCLUSION In this manuscript, an attempt has been made to provide significant insight into the antioxidant activities of herbal extracts against malaria parasites.
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Affiliation(s)
- Sisir Nandi
- Global Institute of Pharmaceutical Education and Research, Kashipur, 244713, India
| | - Sarfaraz Ahmed
- Global Institute of Pharmaceutical Education and Research, Kashipur, 244713, India
| | - Anil Kumar Saxena
- Global Institute of Pharmaceutical Education and Research, Kashipur, 244713, India
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Shi W, Cao X, Liu Q, Zhu Q, Liu K, Deng T, Yu Q, Deng W, Yu J, Wang Q, Xu X. Hybrid Membrane-Derived Nanoparticles for Isoliquiritin Enhanced Glioma Therapy. Pharmaceuticals (Basel) 2022; 15:ph15091059. [PMID: 36145280 PMCID: PMC9506545 DOI: 10.3390/ph15091059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/12/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
Due to the obstruction and heterogeneity of the blood-brain barrier, the clinical treatment of glioma has been extremely difficult. Isoliquiritigenin (ISL) exhibits antitumor effects, but its low solubility and bioavailability limit its application potential. Herein, we established a nanoscale hybrid membrane-derived system composed of erythrocytes and tumor cells. By encapsulating ISL in hybrid membrane nanoparticles, ISL is expected to be enhanced for the targeting and long-circulation in gliomas therapy. We fused erythrocytes with human glioma cells U251 and extracted the fusion membrane via hypotension, termed as hybrid membrane (HM). HM-camouflaged ISL nanoparticles (ISL@HM NPs) were prepared and featured with FT-IR, SEM, TEM, and DLS particle analysis. As the results concluded, the ISL active pharmaceutical ingredients (APIs) were successfully encapsulated with HM membranes, and the NPs loading efficiency was 38.9 ± 2.99% under maximum entrapment efficiency. By comparing the IC50 of free ISL and NPs, we verified that the solubility and antitumor effect of NPs was markedly enhanced. We also investigated the mechanism of the antitumor effect of ISL@HM NPs, which revealed a marked inhibition of tumor cell proliferation and promotion of senescence and apoptosis of tumor cells of the formulation. In addition, the FSC and WB results examined the effects of different concentrations of ISL@HM NPs on tumor cell disruption and apoptotic protein expression. Finally, it can be concluded that hybridized membrane-derived nanoparticles could prominently increase the solubility of insoluble materials (as ISL), and also enhance its targeting and antitumor effect.
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Affiliation(s)
- Wenwan Shi
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
| | - Xia Cao
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
- Correspondence: (X.C.); (Q.W.); (X.X.); Tel.: +86-511-85038451 (X.C. & Q.W. & X.X.)
| | - Qi Liu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
| | - Qin Zhu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
| | - Kai Liu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
| | - Tianwen Deng
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
| | - Qingtong Yu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
| | - Wenwen Deng
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
| | - Jiangnan Yu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
| | - Qilong Wang
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
- Correspondence: (X.C.); (Q.W.); (X.X.); Tel.: +86-511-85038451 (X.C. & Q.W. & X.X.)
| | - Ximing Xu
- Department of Pharmaceutics, School of Pharmacy, Centre for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, China
- Medicinal Function Development of New Food Resources, Jiangsu Provincial Research Center, Zhenjiang 212013, China
- Correspondence: (X.C.); (Q.W.); (X.X.); Tel.: +86-511-85038451 (X.C. & Q.W. & X.X.)
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Rezaei Cherati S, Anas M, Liu S, Shanmugam S, Pandey K, Angtuaco S, Shelton R, Khalfaoui AN, Alena SV, Porter E, Fite T, Cao H, Green MJ, Basnakian AG, Khodakovskaya MV. Comprehensive Risk Assessment of Carbon Nanotubes Used for Agricultural Applications. ACS NANO 2022; 16:12061-12072. [PMID: 35868016 DOI: 10.1021/acsnano.2c02201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Carbon-based nanomaterials (CBNs) are often used for potential agricultural applications. Since CBNs applied to plants can easily enter plant organs and reach the human diet, the consequences of the introduction of CBNs into the food chain need to be investigated. We created a platform for a comprehensive investigation of the possible health risks of multiwalled carbon nanotubes (CNTs) accumulated in the organs of exposed tomato plants. Quantification and visualization of CNTs absorbed by plant organs were determined by microwave-induced heating (MIH) and radio frequency (RF) heating methods. Feeding mice with CNT-contaminated tomatoes showed an absence of toxicity for all assessed animal organs. The amount of CNTs accumulated inside the organs of mice fed with CNT-containing fruits was assessed by an RF heating technique and was found to be negligible. Our work provides the experimental evidence that the amount of CNTs accumulated in plant organs as a result of nanofertilization is not sufficient to induce toxicity in mice.
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Affiliation(s)
- Sajedeh Rezaei Cherati
- Department of Biology, University of Arkansas at Little Rock, Little Rock, Arkansas 72204, United States
| | - Muhammad Anas
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Shijie Liu
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
| | - Sudha Shanmugam
- Department of Biology, University of Arkansas at Little Rock, Little Rock, Arkansas 72204, United States
| | - Kamal Pandey
- Department of Biology, University of Arkansas at Little Rock, Little Rock, Arkansas 72204, United States
| | - Steven Angtuaco
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
| | - Randal Shelton
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
| | - Aida N Khalfaoui
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Savenka V Alena
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
| | - Erin Porter
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Todd Fite
- Central Arkansas Veterans Healthcare System, Little Rock, Arkansas 72207, United States
| | - Huaixuan Cao
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Micah J Green
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Alexei G Basnakian
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
- Central Arkansas Veterans Healthcare System, Little Rock, Arkansas 72207, United States
| | - Mariya V Khodakovskaya
- Department of Biology, University of Arkansas at Little Rock, Little Rock, Arkansas 72204, United States
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Manthos K, Theotokis P, Dermitzakis I, Avramidou E, Meditskou S, Manthou ME, Emmanouil‐Nikoloussi E. Valproic acid induced selective apoptosis of ocular fibrous tunic in mice fetuses. Birth Defects Res 2022; 114:1257-1265. [DOI: 10.1002/bdr2.2076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 07/13/2022] [Accepted: 07/21/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Kyriakos Manthos
- Department of Histology‐Embryology, School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece
| | - Paschalis Theotokis
- Department of Histology‐Embryology, School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece
- Laboratory of Experimental Neurology and Neuroimmunology, Second Department of Neurology AHEPA University Hospital Thessaloniki Greece
| | - Iasonas Dermitzakis
- Department of Histology‐Embryology, School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece
| | - Eleni Avramidou
- Department of Histology‐Embryology, School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece
| | - Soultana Meditskou
- Department of Histology‐Embryology, School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece
| | - Maria Eleni Manthou
- Department of Histology‐Embryology, School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece
| | - Elpida‐Niki Emmanouil‐Nikoloussi
- Department of Histology‐Embryology, School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece
- Department of Histology‐Embryology, Department of Dentistry, School of Medicine European University of Cyprus Nicosia Cyprus
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Liu C, Zhao Z, Gao R, Zhang X, Sun Y, Wu J, Liu J, Chen C. Matrix Metalloproteinase-2-Responsive Surface-Changeable Liposomes Decorated by Multifunctional Peptides to Overcome the Drug Resistance of Triple-Negative Breast Cancer through Enhanced Targeting and Penetrability. ACS Biomater Sci Eng 2022; 8:2979-2994. [PMID: 35666956 DOI: 10.1021/acsbiomaterials.2c00295] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Although nanomedicine has demonstrated great potential for combating drug resistance, its suboptimal recognition of malignant cells and limited transport across multiple biological obstacles seriously impede the efficacious accumulation of drugs in tumor lesions, which strikingly limits its application in the clinical therapy of drug-resistant triple-negative breast cancer (TNBC). Hence, a surface-variable drug delivery vehicle based on the modification of liposomes with a multifunctional peptide (named EMC) was fabricated in this work and used for encapsulating doxorubicin and the p-glycoprotein inhibitor tariquidar. This EMC peptide contains an EGFR-targeting bullet that was screened from a "one-bead one-compound" combinatorial library, an MMP-2-cleaved substrate, and a cell-penetrating segment. The EGFR-targeting sequence has been validated to possess excellent specificity and affinity for EGFR at both the cellular and molecular levels and could be unloaded from the EMC peptide by MMP-2 in the tumor microenvironment. This doxorubicin/tariquidar-coloaded and peptide-functionalized liposome (DT-pLip) exhibited superior efficacy in tumor growth inhibition to drug-resistant TNBC both in vitro and in vivo through EGFR targeting, osmotic enhancement in response to MMP-2, controllable release, and inhibited efflux. Consequently, our systematic studies indicated the potential of this liposome-based nanoplatform in the therapy of drug-resistant TNBC through targeting effects and tumor microenvironment-triggered penetration enhancement.
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Affiliation(s)
- Changliang Liu
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, National clinical research center for geriatrics, Translational Neuroscience center, Department of Anesthesiology, The Research Units of West China, Chinese Academy of Medical Science, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Zijian Zhao
- BOE Technology Group Co., Ltd., Beijing 100176, China
| | - Rui Gao
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, National clinical research center for geriatrics, Translational Neuroscience center, Department of Anesthesiology, The Research Units of West China, Chinese Academy of Medical Science, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Xueying Zhang
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, National clinical research center for geriatrics, Translational Neuroscience center, Department of Anesthesiology, The Research Units of West China, Chinese Academy of Medical Science, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Yalan Sun
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, National clinical research center for geriatrics, Translational Neuroscience center, Department of Anesthesiology, The Research Units of West China, Chinese Academy of Medical Science, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Jiahui Wu
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, National clinical research center for geriatrics, Translational Neuroscience center, Department of Anesthesiology, The Research Units of West China, Chinese Academy of Medical Science, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Jin Liu
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, National clinical research center for geriatrics, Translational Neuroscience center, Department of Anesthesiology, The Research Units of West China, Chinese Academy of Medical Science, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Chan Chen
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Center of Translational Medicine of Anesthesiology, National clinical research center for geriatrics, Translational Neuroscience center, Department of Anesthesiology, The Research Units of West China, Chinese Academy of Medical Science, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
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Garg S, Garg TK, Wise SY, Fatanmi OO, Miousse IR, Savenka AV, Basnakian AG, Singh VK, Hauer-Jensen M. Effects of Gamma-Tocotrienol on Intestinal Injury in a GI-Specific Acute Radiation Syndrome Model in Nonhuman Primate. Int J Mol Sci 2022; 23:ijms23094643. [PMID: 35563033 PMCID: PMC9100017 DOI: 10.3390/ijms23094643] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 12/14/2022] Open
Abstract
The gastrointestinal (GI) system is highly susceptible to irradiation. Currently, there is no Food and Drug Administration (FDA)-approved medical countermeasures for GI radiation injury. The vitamin E analog gamma-tocotrienol (GT3) is a promising radioprotector in mice and nonhuman primates (NHP). We evaluated GT3-mediated GI recovery in total-body irradiated (TBI) NHPs. Sixteen rhesus macaques were divided into two groups; eight received vehicle and eight GT3 24 h prior to 12 Gy TBI. Proximal jejunum was assessed for structural injuries and crypt survival on day 4 and 7. Apoptotic cell death and crypt cell proliferation were assessed with TUNEL and Ki-67 immunostaining. Irradiation induced significant shortening of the villi and reduced mucosal surface area. GT3 induced an increase in crypt depth at day 7, suggesting that more stem cells survived and proliferated after irradiation. GT3 did not influence crypt survival after irradiation. GT3 treatment caused a significant decline in TUNEL-positive cells at both day 4 (p < 0.03) and 7 (p < 0.0003). Importantly, GT3 induced a significant increase in Ki-67-positive cells at day 7 (p < 0.05). These data suggest that GT3 has radioprotective function in intestinal epithelial and crypt cells. GT3 should be further explored as a prophylactic medical countermeasure for radiation-induced GI injury.
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Affiliation(s)
- Sarita Garg
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
| | - Tarun K. Garg
- UAMS Myeloma Center, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
| | - Stephen Y. Wise
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA; (S.Y.W.); (O.O.F.); (V.K.S.)
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Oluseyi O. Fatanmi
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA; (S.Y.W.); (O.O.F.); (V.K.S.)
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Isabelle R. Miousse
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
| | - Alena V. Savenka
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (A.V.S.); (A.G.B.)
| | - Alexei G. Basnakian
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (A.V.S.); (A.G.B.)
- John L. McClellan Memorial VA Hospital, Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA
| | - Vijay K. Singh
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA; (S.Y.W.); (O.O.F.); (V.K.S.)
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Martin Hauer-Jensen
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA;
- Correspondence: ; Tel.: +1-501-686-7912; Fax: +1-501-421-0022
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Hassler L, Wysocki J, Gelarden I, Sharma I, Tomatsidou A, Ye M, Gula H, Nicolaescu V, Randall G, Pshenychnyi S, Khurram N, Kanwar Y, Missiakas D, Henkin J, Yeldandi A, Batlle D. A Novel Soluble ACE2 Protein Provides Lung and Kidney Protection in Mice Susceptible to Lethal SARS-CoV-2 Infection. J Am Soc Nephrol 2022; 33:1293-1307. [PMID: 35236774 PMCID: PMC9257820 DOI: 10.1681/asn.2021091209] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 02/06/2022] [Indexed: 11/03/2022] Open
Abstract
Background: Severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) uses full-length angiotensin converting enzyme 2 (ACE2) as a main receptor to enter target cells. The goal of this study was to demonstrate the preclinical efficacy of a novel soluble ACE2 protein with increased duration of action and binding capacity in a lethal mouse model of COVID-19. Methods: A human soluble ACE2 variant fused with an albumin binding domain (ABD) was linked via a dimerization motif hinge-like 4-cysteine dodecapeptide (DDC) to improve binding capacity to SARS-CoV-2. This novel soluble ACE2 protein (ACE2 1-618-DDC-ABD) was then administered intranasally and intraperitoneally to mice prior to intranasal inoculation of SARS-CoV-2 and then for two additional days post viral inoculation. Results: Untreated animals became severely ill and all had to be humanely euthanized by day 6/7 and had pulmonary alveolar hemorrhage with mononuclear infiltrates. In contrast, all but one mouse infected with a lethal dose of SARS-CoV-2 that received ACE2-1-618-DDC-ABD survived. In the animals inoculated with SARS-CoV-2 that were untreated, viral titers were high in the lungs and brain but virus was absent in the kidneys. However, some untreated animals had variable degrees of kidney proximal tubular injury with increased NGAL and TUNEL staining indicating attenuation of the proximal tubular brush border. In contrast, viral titers in the lung and brain were reduced or non-detectable in mice that received ACE2 1-618 DDCABD, and the animals developed only moderate disease as assessed by a near-normal clinical score, minimal weight loss, and improved lung and kidney injury Conclusions: This study demonstrates the preclinical efficacy of a novel soluble ACE2 protein, termed ACE2 1- 618-DDC-ABD, in a lethal mouse model of SARS-CoV-2 infection that causes severe lung injury as well as variable degrees of moderate proximal tubular injury.
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Affiliation(s)
- Luise Hassler
- L Hassler, Division of Nephrology/Hypertension, Department of Medicine and the Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, United States
| | - Jan Wysocki
- J Wysocki, Division of Nephrology/Hypertension, Department of Medicine and the Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, United States
| | - Ian Gelarden
- I Gelarden, Division of Nephrology/Hypertension, Department of Medicine and the Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, United States
| | - Isha Sharma
- I Sharma, Division of Nephrology/Hypertension, Department of Medicine and the Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, United States
| | - Anastasia Tomatsidou
- A Tomatsidou, Department of Microbiology, The University of Chicago, Chicago, United States
| | - Minghao Ye
- M Ye, Division of Nephrology/Hypertension, Department of Medicine and the Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, United States
| | - Haley Gula
- H Gula, Department of Microbiology, The University of Chicago, Chicago, United States
| | - Vlad Nicolaescu
- V Nicolaescu, Department of Microbiology, The University of Chicago, Chicago, United States
| | - Glenn Randall
- G Randall, Department of Microbiology, The University of Chicago, Chicago, United States
| | - Sergii Pshenychnyi
- S Pshenychnyi, Recombinant Protein Production Core, Northwestern University, Evanston, United States
| | - Nigar Khurram
- N Khurram, Division of Nephrology/Hypertension, Department of Medicine and the Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, United States
| | - Yashpal Kanwar
- Y Kanwar, Division of Nephrology/Hypertension, Department of Medicine and the Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, United States
| | - Dominique Missiakas
- D Missiakas, Department of Microbiology, The University of Chicago, Chicago, United States
| | - Jack Henkin
- J Henkin, Center for Developmental Therapeutics, Northwestern University, Evanston, United States
| | - Anjana Yeldandi
- A Yeldandi, Division of Nephrology/Hypertension, Department of Medicine and the Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, United States
| | - Daniel Batlle
- D Batlle, Division of Nephrology/Hypertension, Department of Medicine and the Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, United States
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Bumiller-Bini Hoch V, Schneider L, Pumpe AE, Lüders E, Hundt JE, Boldt ABW. Marked to Die-Cell Death Mechanisms for Keratinocyte Acantholysis in Pemphigus Diseases. Life (Basel) 2022; 12:life12030329. [PMID: 35330080 PMCID: PMC8948972 DOI: 10.3390/life12030329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/15/2022] [Accepted: 02/18/2022] [Indexed: 11/17/2022] Open
Abstract
Pemphigus is a group of blistering autoimmune diseases causing painful skin lesions, characterized by acantholysis and by the production of autoantibodies against, mainly, adhesion proteins. We reviewed the literature for molecules and/ or features involved in the 12 cell death pathways described by Nomenclature Committee on Cell Death, taking place in pemphigus patients, cell lines, or human skin organ cultures treated with sera or IgG from pemphigus patients or in pemphigus mouse models, and found 61 studies mentioning 97 molecules involved in cell death pathways. Among the molecules, most investigated were pleiotropic molecules such as TNF and CASP3, followed by FASL and CASP8, and then by FAS, BAX, BCL2, and TP53, all involved in more than one pathway but interpreted to function only within apoptosis. Most of these previous investigations focused only on apoptosis, but four recent studies, using TUNEL assays and/or electron microscopy, disqualified this pathway as a previous event of acantholysis. For PV, apoptolysis was suggested as a cell death mechanism based on pathogenic autoantibodies diversity, mitochondrial dysfunction, and p38 MAPK signaling. To answer those many questions that remain on cell death and pemphigus, we propose well-controlled, statistically relevant investigations on pemphigus and cell death pathways besides apoptosis, to overcome the challenges of understanding the etiopathology of pemphigus diseases.
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Affiliation(s)
- Valéria Bumiller-Bini Hoch
- Laboratory of Human Molecular Genetics, Department of Genetics, Federal University of Paraná, Curitiba 81531-980, Brazil; (V.B.-B.H.); (L.S.)
- Postgraduate Program in Genetics, Department of Genetics, Federal University of Paraná (UFPR), Curitiba 81531-980, Brazil
- Lübeck Institute of Experimental Dermatology, University of Lübeck, 23562 Lübeck, Germany; (A.E.P.); (E.L.); (J.E.H.)
| | - Larissa Schneider
- Laboratory of Human Molecular Genetics, Department of Genetics, Federal University of Paraná, Curitiba 81531-980, Brazil; (V.B.-B.H.); (L.S.)
| | - Anna Elisabeth Pumpe
- Lübeck Institute of Experimental Dermatology, University of Lübeck, 23562 Lübeck, Germany; (A.E.P.); (E.L.); (J.E.H.)
| | - Emelie Lüders
- Lübeck Institute of Experimental Dermatology, University of Lübeck, 23562 Lübeck, Germany; (A.E.P.); (E.L.); (J.E.H.)
| | - Jennifer Elisabeth Hundt
- Lübeck Institute of Experimental Dermatology, University of Lübeck, 23562 Lübeck, Germany; (A.E.P.); (E.L.); (J.E.H.)
| | - Angelica Beate Winter Boldt
- Laboratory of Human Molecular Genetics, Department of Genetics, Federal University of Paraná, Curitiba 81531-980, Brazil; (V.B.-B.H.); (L.S.)
- Correspondence:
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Gange WS, Qiao JB, Park PJ, McDonnell JF, Tan Z, Perlman JI, Bu P. Protection of Retinal Function by Nucleoside Reverse Transcriptase Inhibitors Following Retinal Ischemia/Reperfusion Injury. J Ocul Pharmacol Ther 2021; 37:485-491. [PMID: 34448620 DOI: 10.1089/jop.2020.0083] [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: 11/12/2022] Open
Abstract
Purpose: Retinal ischemia/reperfusion (I/R) injury is a common cause of visual impairment and blindness for which there remain limited treatment options. Nucleoside reverse transcriptase inhibitors (NRTIs), such as zidovudine (AZT), have been shown to block the NLRP3 inflammasome and prevent retinal degeneration in a mouse model of age-related macular degeneration. The NLRP3 inflammasome has also been shown to be triggered in I/R injury. Therefore, we studied the neuroprotective effects of AZT using a pressure-induced retinal ischemia mouse model. Methods: C57BL/6J mice were randomly assigned to 1 of 2 treatment groups: vehicle-treated retinal I/R injury (n = 6) or AZT-treated retinal I/R injury (n = 6). Vehicle (1% dimethyl sulfoxide [DMSO] in phosphate-buffered saline [PBS]) or AZT 50 mg/kg in 1% DMSO in PBS were injected intraperitoneally twice daily for 5 days. On day 2 of treatment, retinal ischemia was induced by transient elevation of intraocular pressure for 45 min. Scotopic electroretinography (ERG) was used to quantify retinal function before and 1 week after retinal ischemic insult. Retinal morphology was examined 1 week after ischemic insult. Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) assays and caspase 1 immunostaining was performed 24 h after retinal I/R injury. Results: Following I/R injury, ERG a- and b-wave amplitudes were significantly reduced in the vehicle-treated mice. AZT treatment significantly attenuated I/R-induced loss of retinal function as compared with vehicle-treated mice. Additionally, AZT-treated mice experienced significantly less inner retinal thinning as compared with vehicle-treated mice. TUNEL-positive cells were prevalent in the vehicle-treated I/R injury mouse retinas compared with the AZT-treated I/R injury mouse retinas. More caspase-1 immunoreactivity was detected in ganglion cell layer and inner nuclear layer (INL) in vehicle-treated I/R injury group than in AZT-treated I/R injury group. Conclusion: AZT treatment resulted in relative preservation of retinal structure and function following ischemic insult as compared with controls. This suggests AZT may have therapeutic value in the management of retinal ischemic diseases.
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Affiliation(s)
- William S Gange
- Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA
| | - James B Qiao
- Health Sciences Division, Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA
| | - Paul J Park
- Health Sciences Division, Department of Ophthalmology, Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA
| | - James F McDonnell
- Health Sciences Division, Department of Ophthalmology, Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA
| | - Zhiqun Tan
- Institute for Neurological Impairments and Neurological Disorders, University of California Irvine, Irvine, California, USA
| | - Jay I Perlman
- Health Sciences Division, Department of Ophthalmology, Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA.,Surgery Service and Edward Hines Jr. VA Hospital, Hines, Illinois, USA
| | - Ping Bu
- Health Sciences Division, Department of Ophthalmology, Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA.,Research Service, Edward Hines Jr. VA Hospital, Hines, Illinois, USA
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