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Kim SG, Jeon JH, Shin SH, Varias DC, Moon SH, Ryu BY. Inhibition of reactive oxygen species generation by N-Acetyl Cysteine can mitigate male germ cell toxicity induced by bisphenol analogs. Food Chem Toxicol 2024; 188:114652. [PMID: 38583502 DOI: 10.1016/j.fct.2024.114652] [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: 01/17/2024] [Revised: 03/25/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
The estrogen-like effect of bisphenol A (BPA) disrupting the maintenance of functional male germ cells is associated with male sub-fertility. This study investigated toxicity of male germ cells induced by four bisphenol analogs: BPA, BPAF, BPF, and BPS. The investigation of bisphenol analogs' impact on male germ cells included assessing proliferation, apoptosis induction, and the capacity to generate reactive oxygen species (ROS) in GC-1 spermatogonia (spg) cells, specifically type B spermatogonia. Additionally, the therapeutic potential and protective effects of N-Acetyl Cysteine (NAC) and NF-κB inhibitor parthenolide was evaluated. In comparison to BPA, BPF and BPS, BPAF exhibited the most pronounced adverse effect in GC-1 spg cell proliferation. This effect was characterized by pronounced inhibition of phosphorylation of PI3K, AKT, and mTOR, along with increased release of cytochrome c and subsequent cleavages of caspase 3, caspase 7, and poly (ADP-ribose) polymerase. Both NAC and parthenolide were effective reducing cellular ROS induced by BPAF. However, only NAC demonstrated a substantial recovery in proliferation, accompanied by a significant reduction in cytochrome c release and cleaved PARP. These results suggest that NAC supplementation may play an effective therapeutic role in countering germ cell toxicity induced by environmental pollutants with robust oxidative stress-generating capacity.
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Affiliation(s)
- Seul Gi Kim
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, 17546, Republic of Korea.
| | - Jeong Hoon Jeon
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, 17546, Republic of Korea.
| | - Seung Hee Shin
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, 17546, Republic of Korea.
| | - Daniel Chavez Varias
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, 17546, Republic of Korea.
| | - Sung-Hwan Moon
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, 17546, Republic of Korea.
| | - Buom-Yong Ryu
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, 17546, Republic of Korea.
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2
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Sakao K, Hamamoto S, Urakawa D, He Z, Hou DX. Anticancer Activity and Molecular Mechanisms of Acetylated and Methylated Quercetin in Human Breast Cancer Cells. Molecules 2024; 29:2408. [PMID: 38792269 PMCID: PMC11124128 DOI: 10.3390/molecules29102408] [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: 04/16/2024] [Revised: 05/12/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
Quercetin, a flavonoid polyphenol found in many plants, has garnered significant attention due to its potential cancer chemoprevention. Our previous studies have shown that acetyl modification of the hydroxyl group of quercetin altered its antitumor effects in HepG2 cells. However, the antitumor effect in other cancer cells with different gene mutants remains unknown. In this study, we investigated the antitumor effect of quercetin and its methylated derivative 3,3',4',7-O-tetramethylquercetin (4Me-Q) and acetylated derivative 3,3',4',7-O-tetraacetylquercetin (4Ac-Q) on two human breast cancer cells, MCF-7 (wt-p53, caspase-3-ve) and MDA-MB-231 (mt-p53, caspase-3+ve). The results demonstrated that 4Ac-Q exhibited significant cell proliferation inhibition and apoptosis induction in both MCF-7 and MDA-MB-231 cells. Conversely, methylation of quercetin was found to lose the activity. The human apoptosis antibody array revealed that 4Ac-Q might induce apoptosis in MCF-7 cells via a p53-dependent pathway, while in MDA-MB-231 cells, it was induced via a caspase-3-dependent pathway. Furthermore, an evaluation using a superoxide inhibitor, MnTBAP, revealed 4Ac-Q-induced apoptosis in MCF-7 cells in a superoxide-independent manner. These findings provide valuable insights into the potential of acetylated quercetin as a new approach in cancer chemoprevention and offer new avenues for health product development.
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Affiliation(s)
- Kozue Sakao
- The United Graduate School of Agriculture Sciences, Kagoshima University, Kagoshima 890-0065, Japan; (D.U.); (Z.H.); (D.-X.H.)
- Graduate School of Agriculture, Forestry and Fisheries, Kagoshima University, Kagoshima 890-0065, Japan
| | - Shihomi Hamamoto
- Graduate School of Agriculture, Forestry and Fisheries, Kagoshima University, Kagoshima 890-0065, Japan
| | - Daigo Urakawa
- The United Graduate School of Agriculture Sciences, Kagoshima University, Kagoshima 890-0065, Japan; (D.U.); (Z.H.); (D.-X.H.)
| | - Ziyu He
- The United Graduate School of Agriculture Sciences, Kagoshima University, Kagoshima 890-0065, Japan; (D.U.); (Z.H.); (D.-X.H.)
| | - De-Xing Hou
- The United Graduate School of Agriculture Sciences, Kagoshima University, Kagoshima 890-0065, Japan; (D.U.); (Z.H.); (D.-X.H.)
- Graduate School of Agriculture, Forestry and Fisheries, Kagoshima University, Kagoshima 890-0065, Japan
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3
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Melo K, Dos Santos CR, Franco ECS, Martins Filho AJ, Casseb SMM, Vasconcelos PFDC. Exploring the interplay between miRNAs, apoptosis and viral load, in Dengue virus infection. Virology 2024; 596:110095. [PMID: 38761641 DOI: 10.1016/j.virol.2024.110095] [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: 11/22/2023] [Revised: 03/08/2024] [Accepted: 04/23/2024] [Indexed: 05/20/2024]
Abstract
Dengue virus (DENV) is a major global health concern, causing millions of infections annually. Understanding the cellular response to DENV infection is crucial for developing effective therapies. This study provides an in-depth analysis of the cellular response to Dengue virus (DENV) infection, with a specific focus on the interplay between microRNAs (miRNAs), apoptosis, and viral load across different DENV serotypes. Utilizing a variety of cell lines infected with four DENV serotypes, the research methodically quantifies viral load, and the expression levels of miRNA-15, miRNA-16, and BCL2 protein, alongside measuring apoptosis markers. Methodologically, the study employs quantitative PCR for viral load and miRNA expression analysis, and Western blot for apoptosis and BCL2 detection, with a statistical framework that includes ANOVA and correlation analysis to discern significant differences and relationships. The findings reveal that despite similar viral loads across DENV serotypes, DENV-2 exhibits a marginally higher load. A notable upregulation of miRNA-15 and miRNA-16 correlates positively with increased viral load, suggesting their potential role in modulating viral replication. Concurrently, a marked activation of caspases 3 and 7, along with changes in BCL2 protein levels, underscores the role of apoptosis in the cellular response to DENV infection. Conclusively, the study enhances the understanding of miRNA involvement in DENV pathogenesis, highlighting miRNA-15 and miRNA-16 as potential regulatory agents in viral replication and apoptosis. These findings pave the way for further exploration into miRNA-based therapeutic strategies against DENV infection.
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Affiliation(s)
- Karla Melo
- Instituto Evandro Chagas, Brazil; Universidade Federal do Pará, Brazil
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4
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Lestari B, Fukushima T, Utomo RY, Wahyuningsih MSH. Apoptotic and non-apoptotic roles of caspases in placenta physiology and pathology. Placenta 2024; 151:37-47. [PMID: 38703713 DOI: 10.1016/j.placenta.2024.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/12/2024] [Accepted: 03/27/2024] [Indexed: 05/06/2024]
Abstract
Caspases, a family of cysteine proteases, are pivotal regulators of apoptosis, the tightly controlled cell death process crucial for eliminating excessive or unnecessary cells during development, including placental development. Collecting research has unveiled the multifaceted roles of caspases in the placenta, extending beyond apoptosis. Apart from their involvement in placental tissue remodeling via apoptosis, caspases actively participate in essential regulatory processes, such as trophoblast fusion and differentiation, significantly influencing placental growth and functionality. In addition, growing evidence indicates an elevation in caspase activity under pathological conditions like pre-eclampsia (PE) and intrauterine growth restriction (IUGR), leading to excessive cell death as well as inflammation. Drawing from advancements in caspase research and placental development under both normal and abnormal conditions, we examine the significance of caspases in both cell death (apoptosis) and non-cell death-related processes within the placenta. We also discuss potential therapeutics targeting caspase-related pathways for placenta disorders.
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Affiliation(s)
- Beni Lestari
- Department Pharmacology and Therapy, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia; Cancer Chemoprevention Research Center, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Toshiaki Fukushima
- Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, Japan.
| | - Rohmad Yudi Utomo
- Cancer Chemoprevention Research Center, Universitas Gadjah Mada, Yogyakarta, Indonesia; Department Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Mae Sri Hartati Wahyuningsih
- Department Pharmacology and Therapy, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia.
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5
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Holota R, Dečmanová V, Alexovič Matiašová A, Košuth J, Slovinská L, Pačut L, Tomori Z, Daxnerová Z, Ševc J. Cleaved caspase-3 is present in the majority of glial cells in the intact rat spinal cord during postnatal life. Histochem Cell Biol 2024; 161:269-286. [PMID: 37938347 PMCID: PMC10912154 DOI: 10.1007/s00418-023-02249-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2023] [Indexed: 11/09/2023]
Abstract
Cell death is an essential process that occurs during the development of the central nervous system. Despite the availability of a wide range of commercially produced antibodies against various apoptotic markers, data regarding apoptosis in intact spinal cord during postnatal development and adulthood are mostly missing. We investigated apoptosis in rat spinal cord at different stages of ontogenesis (postnatal days 8, 29, and 90). For this purpose, we applied immunofluorescent detection of two widely used apoptotic markers, cleaved caspase-3 (cC3) and cleaved poly(ADP-ribose) polymerase (cPARP). Surprisingly, we found significant discrepancy between the number of cC3+ cells and PARP+ cells, with a ratio between 500:1 and 5000:1 in rat spinal cord at all postnatal time points. The majority of cC3+ cells were glial cells and did not exhibit an apoptotic phenotype. In contrast with in vivo results, in vitro analysis of primary cell cultures derived from neonatal rat spinal cord and treated with the apoptotic inductor staurosporine revealed a similar onset of occurrence of both cC3 and cPARP in cells subjected to apoptosis. Gene expression analysis of spinal cord revealed elevated expression of the Birc4 (XIAP), Birc2, and Birc5 (Survivin) genes, which are known potent inhibitors of apoptosis. Our data indicate that cC3 is not an exclusive marker of apoptosis, especially in glial cells, owing its possible presence in inhibited forms and/or its participation in other non-apoptotic roles. Therefore, cPARP appears to be a more appropriate marker to detect apoptosis.
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Affiliation(s)
- R Holota
- Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University in Košice, Šrobárova 2, 04154, Košice, Slovak Republic
| | - V Dečmanová
- Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University in Košice, Šrobárova 2, 04154, Košice, Slovak Republic
| | - A Alexovič Matiašová
- Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University in Košice, Šrobárova 2, 04154, Košice, Slovak Republic.
| | - J Košuth
- Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University in Košice, Šrobárova 2, 04154, Košice, Slovak Republic
| | - L Slovinská
- Associated Tissue Bank, Faculty of Medicine, P. J. Šafárik University in Košice and L. Pasteur University Hospital, Tr. SNP 1, 04011, Košice, Slovak Republic
- Department of Regenerative Medicine and Cell Therapy, Institute of Neurobiology, Biomedical Research Center, Slovak Academy of Sciences, Šoltésovej 4, 04001, Košice, Slovak Republic
| | - L Pačut
- Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University in Košice, Šrobárova 2, 04154, Košice, Slovak Republic
| | - Z Tomori
- Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 04001, Košice, Slovak Republic
| | - Z Daxnerová
- Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University in Košice, Šrobárova 2, 04154, Košice, Slovak Republic
| | - J Ševc
- Institute of Biology and Ecology, Faculty of Science, P. J. Šafárik University in Košice, Šrobárova 2, 04154, Košice, Slovak Republic
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6
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Li QF, Li YX, Yang YY, Dong PP, Mei CJ, Lu JL, Zhang JF, Hua HY, Xiong CR, Yu CX, Song LJ, Yang K. The egg ribonuclease SjCP1412 accelerates liver fibrosis caused by Schistosoma japonicum infection involving damage-associated molecular patterns (DAMPs). Parasitology 2024; 151:260-270. [PMID: 38105713 PMCID: PMC11007278 DOI: 10.1017/s0031182023001361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/16/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
Schistosomiasis, a parasite infectious disease caused by Schistosoma japonicum, often leads to egg granuloma and fibrosis due to the inflammatory reaction triggered by egg antigens released in the host liver. This study focuses on the role of the egg antigens CP1412 protein of S. japonicum (SjCP1412) with RNase activity in promoting liver fibrosis. In this study, the recombinant egg ribonuclease SjCP1412, which had RNase activity, was successfully prepared. By analysing the serum of the population, it has been proven that the anti-SjCP1412 IgG in the serum of patients with advanced schistosomiasis was moderately correlated with liver fibrosis, and SjCP1412 may be an important antigen associated with liver fibrosis in schistosomiasis. In vitro, the rSjCP1412 protein induced the human liver cancer cell line Hep G2 and liver sinusoidal endothelial cells apoptosis and necrosis and the release of proinflammatory damage-associated molecular patterns (DAMPs). In mice infected with schistosomes, rSjCP1412 immunization or antibody neutralization of SjCP1412 activity significantly reduced cell apoptosis and necroptosis in liver tissue, thereby reducing inflammation and liver fibrosis. In summary, the SjCP1412 protein plays a crucial role in promoting liver fibrosis during schistosomiasis through mediating the liver cells apoptosis and necroptosis to release DAMPs inducing an inflammatory reaction. Blocking SjCP1412 activity could inhibit its proapoptotic and necrotic effects and alleviate hepatic fibrosis. These findings suggest that SjCP1412 may be served as a promising drug target for managing liver fibrosis in schistosomiasis japonica.
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Affiliation(s)
- Qi-Feng Li
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Yi-Xin Li
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Ying-Ying Yang
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Pan-Pan Dong
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Cong-Jin Mei
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Ju-Lu Lu
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Jian-Feng Zhang
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Hai-Yong Hua
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Chun-Rong Xiong
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Chuan-Xin Yu
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Li-Jun Song
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Kun Yang
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
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7
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Yan W, Wu Y, Zhao F, Dai R, Zhou Y, Liu D, Cheng J, Hu X, Ao Y. Anti-Apoptosis Therapy for Meniscal Avascular Zone Repair: A Proof-of-Concept Study in a Lapine Model. Bioengineering (Basel) 2023; 10:1422. [PMID: 38136013 PMCID: PMC10740472 DOI: 10.3390/bioengineering10121422] [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: 10/18/2023] [Revised: 11/28/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
In the present study, 24 rabbits were firstly used to evaluate the apoptosis index and matrix degeneration after untreated adult meniscal tears. Vertical tears (0.25 cm in length) were prepared in the avascular zone of the anterior horn. Specimens were harvested at 1, 3, 6, 12 weeks postoperatively. The apoptosis index around tear sites stayed at a high level throughout the whole follow-up period. The depletion of glycosaminoglycans (GAG) and aggrecan at the tear site was observed, while the deposition of COL I and COL II was not affected, even at the last follow-up of 12 weeks after operation. The expression of SOX9 decreased significantly; no cellularity was observed at the wound interface at all timepoints. Secondly, another 20 rabbits were included to evaluate the effects of anti-apoptosis therapy on rescuing meniscal cells and enhancing meniscus repair. Longitudinal vertical tears (0.5 cm in length) were made in the meniscal avascular body. Tears were repaired by the inside-out suture technique, or repaired with sutures in addition to fibrin gel and blank silica nanoparticles, or silica nanoparticles encapsulating apoptosis inhibitors (z-vad-fmk). Samples were harvested at 12 months postoperatively. We found the locally administered z-vad-fmk agent at the wound interface significantly alleviated meniscal cell apoptosis and matrix degradation, and enhanced meniscal repair in the avascular zone at 12 months after operation. Thus, local administration of caspase inhibitors (z-vad-fmk) is a promising therapeutic strategy for alleviating meniscal cell loss and enhancing meniscal repair after adult meniscal tears in the avascular zone.
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Affiliation(s)
- Wenqiang Yan
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China; (W.Y.); (Y.W.); (F.Z.); (R.D.); (Y.Z.); (D.L.); (J.C.)
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Yue Wu
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China; (W.Y.); (Y.W.); (F.Z.); (R.D.); (Y.Z.); (D.L.); (J.C.)
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Fengyuan Zhao
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China; (W.Y.); (Y.W.); (F.Z.); (R.D.); (Y.Z.); (D.L.); (J.C.)
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Ruilan Dai
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China; (W.Y.); (Y.W.); (F.Z.); (R.D.); (Y.Z.); (D.L.); (J.C.)
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Yunan Zhou
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China; (W.Y.); (Y.W.); (F.Z.); (R.D.); (Y.Z.); (D.L.); (J.C.)
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Dingge Liu
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China; (W.Y.); (Y.W.); (F.Z.); (R.D.); (Y.Z.); (D.L.); (J.C.)
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Jin Cheng
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China; (W.Y.); (Y.W.); (F.Z.); (R.D.); (Y.Z.); (D.L.); (J.C.)
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Xiaoqing Hu
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China; (W.Y.); (Y.W.); (F.Z.); (R.D.); (Y.Z.); (D.L.); (J.C.)
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
| | - Yingfang Ao
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing 100191, China; (W.Y.); (Y.W.); (F.Z.); (R.D.); (Y.Z.); (D.L.); (J.C.)
- Beijing Key Laboratory of Sports Injuries, Beijing 100191, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing 100191, China
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8
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Luk CT, Chan CK, Chiu F, Shi SY, Misra PS, Li YZ, Pollock-Tahiri E, Schroer SA, Desai HR, Sivasubramaniyam T, Cai EP, Krishnamurthy M, Han DJ, Chowdhury A, Aslam R, Yuen DA, Hakem A, Hakem R, Woo M. Dual Role of Caspase 8 in Adipocyte Apoptosis and Metabolic Inflammation. Diabetes 2023; 72:1751-1765. [PMID: 37699387 DOI: 10.2337/db22-1033] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 08/29/2023] [Indexed: 09/14/2023]
Abstract
Caspases are cysteine-aspartic proteases that were initially discovered to play a role in apoptosis. However, caspase 8, in particular, also has additional nonapoptotic roles, such as in inflammation. Adipocyte cell death and inflammation are hypothesized to be initiating pathogenic factors in type 2 diabetes. Here, we examined the pleiotropic role of caspase 8 in adipocytes and obesity-associated insulin resistance. Caspase 8 expression was increased in adipocytes from mice and humans with obesity and insulin resistance. Treatment of 3T3-L1 adipocytes with caspase 8 inhibitor Z-IETD-FMK decreased both death receptor-mediated signaling and targets of nuclear factor κ-light-chain-enhancer of activated B (NF-κB) signaling. We generated novel adipose tissue and adipocyte-specific caspase 8 knockout mice (aP2Casp8-/- and adipoqCasp8-/-). Both males and females had improved glucose tolerance in the setting of high-fat diet (HFD) feeding. Knockout mice also gained less weight on HFD, with decreased adiposity, adipocyte size, and hepatic steatosis. These mice had decreased adipose tissue inflammation and decreased activation of canonical and noncanonical NF-κB signaling. Furthermore, they demonstrated increased energy expenditure, core body temperature, and UCP1 expression. Adipocyte-specific activation of Ikbkb or housing mice at thermoneutrality attenuated improvements in glucose tolerance. These data demonstrate an important role for caspase 8 in mediating adipocyte cell death and inflammation to regulate glucose and energy homeostasis. ARTICLE HIGHLIGHTS Caspase 8 is increased in adipocytes from mice and humans with obesity and insulin resistance. Knockdown of caspase 8 in adipocytes protects mice from glucose intolerance and weight gain on a high-fat diet. Knockdown of caspase 8 decreases Fas signaling, as well as canonical and noncanonical nuclear factor κ-light-chain-enhancer of activated B (NF-κB) signaling in adipose tissue. Improved glucose tolerance occurs via reduced activation of NF-κB signaling and via induction of UCP1 in adipocytes.
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Affiliation(s)
- Cynthia T Luk
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Division of Endocrinology and Metabolism, Department of Medicine, St. Michael's Hospital, Unity Health Toronto, Ontario, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, Ontario, Canada
| | - Carmen K Chan
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Felix Chiu
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Sally Yu Shi
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Paraish S Misra
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Yu Zhe Li
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Evan Pollock-Tahiri
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Stephanie A Schroer
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Harsh R Desai
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Tharini Sivasubramaniyam
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Erica P Cai
- Lilly Diabetes Center of Excellence, Indiana Biosciences Research Institute, Indianapolis, IN
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN
| | | | - Daniel J Han
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Apu Chowdhury
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Rukhsana Aslam
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Darren A Yuen
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Anne Hakem
- University Health Network, Toronto, Ontario, Canada
| | | | - Minna Woo
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
- Division of Endocrinology, Department of Medicine, University Health Network/Sinai Health System, University of Toronto, Toronto, Ontario, Canada
- University Health Network, Toronto, Ontario, Canada
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9
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Mahmood AA, Abbas RF. Assessment of NLRP3 Gene Polymorphisms with Periodontitis as Compared with Healthy Periodontium in Iraqi Arabs Patients. Eur J Dent 2023; 17:1338-1348. [PMID: 36812929 PMCID: PMC10756796 DOI: 10.1055/s-0043-1761185] [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: 02/24/2023] Open
Abstract
OBJECTIVES The nod-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome regulates the maturation and release of the cytokines as well as the activation of caspase in response to danger signals derived from pathogenic infection, tissue damage, andmetabolic changes that have a role in the pathogenesis of different diseases as periodontitis. Yet, the susceptibility to this illness could be determined by population-based genetic differences. The aim of this study was to determine whether periodontitis in Arab populations from Iraq is correlated with NLRP3 gene polymorphisms and measure clinical periodontal parameters and investigate their association with genetic polymorphisms of the NLRP3. MATERIALS AND METHODS The study sample consisted of 94 participants ranging from 30 to 55 years old, both males and females who fulfilled the study's criteria. The selected participants were divided into two groups: the periodontitis group (62 subjects) and the healthy control group (32 subjects). The examination of clinical periodontal parameters of all participants was carried out, followed by a collection of venous blood for NLRP3 genetic analysis using the polymerase chain reaction-sequencing technique. RESULTS The genetic analysis of NLRP3 genotypes at four single nucleotide polymorphisms (SNPs) (rs10925024, rs4612666, rs34777555, and rs10754557), by Hardy-Weinberg equilibrium, identified nonsignificant differences in studied groups. The C-T genotype among periodontitis was significantly different from controls, while the C-C genotype among control was significantly different from periodontitis at NLRP3 rs10925024. Overall, there were 35 SNPs in the periodontitis group and 10 SNPs in the control group for rs10925024 with significant differences versus nonsignificant differences of the other SNPs between the studied groups. Clinical attachment loss and NLRP3 rs10925024 additionally demonstrated a significant positive correlation in the periodontitis subjects. CONCLUSION The findings suggested that polymorphisms of the NLRP3 gene may have a role and increasing the genetic susceptibility to periodontal disease in Arabs Iraqi patients.
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Affiliation(s)
- Athraa A. Mahmood
- Department of Oral Surgery and Periodontology, College of Dentistry, Mustansiriyah University, Baghdad, Iraq
| | - Raghad Fadhil Abbas
- Department of Periodontology, College of Dentistry, University of Baghdad, Baghdad, Iraq
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10
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Siriwaseree J, Yingchutrakul Y, Samutrtai P, Aonbangkhen C, Srathong P, Krobthong S, Choowongkomon K. Exploring the Apoptotic-Induced Biochemical Mechanism of Traditional Thai Herb (Kerra™) Extract in HCT116 Cells Using a Label-Free Proteomics Approach. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1376. [PMID: 37629666 PMCID: PMC10456832 DOI: 10.3390/medicina59081376] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023]
Abstract
Background and Objectives: Natural products have proven to be a valuable source for the discovery of new candidate drugs for cancer treatment. This study aims to investigate the potential therapeutic effects of "Kerra™", a natural extract derived from a mixture of nine medicinal plants mentioned in the ancient Thai scripture named the Takxila Scripture, on HCT116 cells. Materials and Methods: In this study, the effect of the Kerra™ extract on cancer cells was assessed through cell viability assays. Apoptotic activity was evaluated by examining the apoptosis characteristic features. A proteomics analysis was conducted to identify proteins and pathways associated with the extract's mechanism of action. The expression levels of apoptotic protein markers were measured to validate the extract's efficacy. Results: The Kerra™ extract demonstrated a dose-dependent inhibitory effect on the cells, with higher concentrations leading to decreased cell viability. Treatment with the extract for 72 h induced characteristic features of early and late apoptosis, as well as cell death. An LC-MS/MS analysis identified a total of 3406 proteins. The pathway analysis revealed that the Kerra™ extract stimulated apoptosis and cell death in colorectal cancer cell lines and suppressed cell proliferation in adenocarcinoma cell lines through the EIF2 signaling pathway. Upstream regulatory proteins, including cyclin-dependent kinase inhibitor 1A (CDKN1A) and MYC proto-oncogene, bHLH transcription factor (MYC), were identified. The expressions of caspase-8 and caspase-9 were significantly elevated by the Kerra™ extract compared to the chemotherapy drug Doxorubicin (Dox). Conclusions: These findings provide strong evidence for the ability of the Kerra™ extract to induce apoptosis in HCT116 colon cancer cells. The extract's efficacy was demonstrated by its dose-dependent inhibitory effect, induction of apoptotic activity, and modulation of key proteins involved in cell death and proliferation pathways. This study highlights the potential of Kerra™ as a promising therapeutic agent in cancer treatment.
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Affiliation(s)
- Jeeraprapa Siriwaseree
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand;
| | - Yodying Yingchutrakul
- National Center for Genetic Engineering and Biotechnology, NSTDA, Pathum Thani 12120, Thailand;
| | - Pawitrabhorn Samutrtai
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Chanat Aonbangkhen
- Center of Excellence in Natural Products Chemistry (CENP), Department of Chemistry Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Pussadee Srathong
- Faculty of Nursing, Praboromarajchanok Institute, Nonthaburi 11000, Thailand;
| | - Sucheewin Krobthong
- Center of Excellence in Natural Products Chemistry (CENP), Department of Chemistry Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Kiattawee Choowongkomon
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand;
- Interdisciplinary Graduate Program in Genetic Engineering, Kasetsart University, Bangkok 10900, Thailand
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11
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Payani S, Bhaskar M, Kumar GS, Pradeepkiran JA. A study on antimicrobial and anticancer properties of Cissus quadrangulris using lung cancer cell line. Cancer Treat Res Commun 2023; 36:100732. [PMID: 37379774 DOI: 10.1016/j.ctarc.2023.100732] [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: 05/22/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 06/30/2023]
Abstract
Cissus quadrangularis plant from Vitaceae family, native in India. Many parts of this plant have medicinal values but most precious is stem of this plant. In past years number of studies reported their activities and secondary metabolites in Cissus quadrangularis plant and their pharmacological activities and uses in traditional medicine system. It is reported to possess excellent medicinal properties and potent fracture healing properties, antimicrobial, antiulcer, antioxidative, cholinergic activity and beneficial effect on cardiovascular diseases, possesses antiulcer and cytoprotective property in indomethacin-induced gastric mucosal injury. The aim of this study was to determine the qualitative phytochemical analysis, antimicrobial activity, cell viability and in vitro anticancer activity of a potential of Cissus quadrangularis stem extract against A549 human lung cancer cell line. The disc diffusion method was employed to determine the antimicrobial activity of Cissus quadrangularis stem extract and showed potential antibacterial and antifungal activity against various microorganisms. Results have shown that Stem methanolic extract induced a significant decrease of tumour cell viability. The cell viability assay clearly showed that the cells treated with Cissus quadrangularis methanolic extract has significantly reduced the lung cancer cell viability in a dose dependant manner. The stem methanolic extract was tested for the in vitro antiproliferative potential on A549 human lung cancer cell line using different concentrations, namely 1000, 62.5 and 7.8 µg/ml. We observed the IC50 dose at 65.2 μg/ml concentration. In cell culture A549 cells treated with Cissus quadrangularis stem methanolic extract in 24 h the cells growth is controlled.
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Affiliation(s)
- Sholapuri Payani
- Department of Zoology, Division of Molecular Biology, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
| | - Matcha Bhaskar
- Department of Zoology, Division of Molecular Biology, Sri Venkateswara University, Tirupati, Andhra Pradesh, India.
| | - Gandham Sandeep Kumar
- Department of Zoology, Division of Molecular Biology, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
| | - Jangampalli Adi Pradeepkiran
- Department of Zoology, Division of Molecular Biology, Sri Venkateswara University, Tirupati, Andhra Pradesh, India; Deapartment of Internal Medicine, Texas Tech University of Health Science Centre, Lubbock, TX 79415, USA
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12
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Michalski M, Bauer M, Walz F, Tümen D, Heumann P, Stöckert P, Gunckel M, Kunst C, Kandulski A, Schmid S, Müller M, Gülow K. Simultaneous Inhibition of Mcl-1 and Bcl-2 Induces Synergistic Cell Death in Hepatocellular Carcinoma. Biomedicines 2023; 11:1666. [PMID: 37371761 DOI: 10.3390/biomedicines11061666] [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: 05/06/2023] [Revised: 06/01/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Despite the recent approval of new therapies, the prognosis for patients with hepatocellular carcinoma (HCC) remains poor. There is a clinical need for new highly effective therapeutic options. Here, we present a combined application of BH3-mimetics as a potential new treatment option for HCC. BH3-mimetics inhibit anti-apoptotic proteins of the BCL-2 family and, thus, trigger the intrinsic apoptosis pathway. Anti-apoptotic BCL-2 proteins such as Bcl-2 and Mcl-1 are frequently overexpressed in HCC. Therefore, we analyzed the efficacy of the two BH3-mimetics ABT-199 (Bcl-2 inhibitor) and MIK665 (Mcl-1 inhibitor) in HCC cell lines with differential expression levels of endogenous Bcl-2 and Mcl-1. While administration of one BH3-mimetic alone did not substantially trigger cell death, the combination of two inhibitors enhanced induction of the intrinsic apoptosis pathway. Both drugs acted synergistically, highlighting the effectivity of this specific BH3-mimetic combination, particularly in HCC cell lines. These results indicate the potential of combining inhibitors of the BCL-2 family as new therapeutic options in HCC.
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Affiliation(s)
- Marlen Michalski
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Magdalena Bauer
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Franziska Walz
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Deniz Tümen
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Philipp Heumann
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Petra Stöckert
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Manuela Gunckel
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Claudia Kunst
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Arne Kandulski
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Stephan Schmid
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Martina Müller
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
| | - Karsten Gülow
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology, and Infectious Diseases, University Hospital Regensburg Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
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13
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Kalkavan H, Rühl S, Shaw JJP, Green DR. Non-lethal outcomes of engaging regulated cell death pathways in cancer. NATURE CANCER 2023; 4:795-806. [PMID: 37277528 PMCID: PMC10416134 DOI: 10.1038/s43018-023-00571-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 04/27/2023] [Indexed: 06/07/2023]
Abstract
Regulated cell death (RCD) is essential for successful systemic cancer therapy. Yet, the engagement of RCD pathways does not inevitably result in cell death. Instead, RCD pathways can take part in diverse biological processes if the cells survive. Consequently, these surviving cells, for which we propose the term 'flatliners', harbor important functions. These evolutionarily conserved responses can be exploited by cancer cells to promote their own survival and growth, with challenges and opportunities for cancer therapy.
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Affiliation(s)
- Halime Kalkavan
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
- West German Cancer Center, Department of Medical Oncology, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany
| | - Sebastian Rühl
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
- T3 Pharmaceuticals AG, Allschwil, Switzerland
| | - Jeremy J P Shaw
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Douglas R Green
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA.
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14
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Amirova KM, Dimitrova PA, Leseva MN, Koycheva IK, Dinkova-Kostova AT, Georgiev MI. The Triterpenoid Nrf2 Activator, CDDO-Me, Decreases Neutrophil Senescence in a Murine Model of Joint Damage. Int J Mol Sci 2023; 24:ijms24108775. [PMID: 37240121 DOI: 10.3390/ijms24108775] [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: 03/25/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
The synthetic 2-cyano-3,12-dioxo-oleana-1,9(11)-dien-28-oic acid methyl ester (CDDO-Me) is a potent activator of the erythroid 2-p45-derived factor 2, Nrf2, a leucine-zipper regulator of the antioxidant response. Herein, we investigated the effect of CDDO-Me on neutrophil function in a murine model of joint damage. Collagenase-induced osteoarthritis (CIOA) was initiated by the intra-articular injection of collagenase in the knee-joint cavity of Balb/c mice. CDDO-Me was administrated intra-articularly twice a week starting at day 7 post-CIOA, and its effect was evaluated at day 14. Neutrophils in blood and bone marrow (BM), cell apoptosis, necrosis, expression of C-X-C chemokine receptor 4 (CXCR4), beta-galactosidase (β-Gal), and Nrf2 levels were measured by flow cytometry. In vitro, CDDO-Me promoted cell survival, reduced cell necrosis, and increased Nrf2 levels by 1.6 times. It decreased surface CXCR4 expression and reduced the frequency of senescent β-Gal+CXCR4+ neutrophils by three times. In vivo, the degree of knee-joint damage in CIOA was correlated with upregulated CXCR4 on CD11b+ neutrophils. CDDO-Me improved the disease histological score, increased the levels of Nrf2, and downregulated surface CXCR4 on mature BM cells. Our data suggest that CDDO-Me may act as a potent regulator of neutrophil senescence during the progression of knee-joint damage.
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Affiliation(s)
- Kristiana M Amirova
- Laboratory of Metabolomics, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 4000 Plovdiv, Bulgaria
- Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
| | - Petya A Dimitrova
- Department of Immunology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Milena N Leseva
- Department of Immunology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Ivanka K Koycheva
- Laboratory of Metabolomics, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 4000 Plovdiv, Bulgaria
- Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
| | - Albena T Dinkova-Kostova
- Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
- Department of Medicine and Pharmacology and Molecular Sciences, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Milen I Georgiev
- Laboratory of Metabolomics, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 4000 Plovdiv, Bulgaria
- Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
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15
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Nan F, Nan W, Yu Z, Wang H, Cui X, Jiang S, Zhang X, Li J, Wang Z, Zhang S, Wang B, Li Y. Polygalacin D inhibits the growth of hepatocellular carcinoma cells through BNIP3L-mediated mitophagy and endogenous apoptosis pathways. Chin J Nat Med 2023; 21:346-358. [PMID: 37245873 DOI: 10.1016/s1875-5364(23)60452-2] [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: 10/21/2022] [Indexed: 05/30/2023]
Abstract
Platycodon grandiflorum (Jacq.) A. DC. is a famous medicinal plant commonly used in East Asia. Triterpene saponins isolated from P. grandiflorum are the main biologically active compounds, among which polygalacin D (PGD) has been reported to be an anti-tumor agent. However, its anti-tumor mechanism against hepatocellular carcinoma is unknown. This study aimed to explore the inhibitory effect of PGD in hepatocellular carcinoma cells and related mechanisms of action. We found that PGD exerted significant inhibitory effect on hepatocellular carcinoma cells through apoptosis and autophagy. Analysis of the expression of apoptosis-related proteins and autophagy-related proteins revealed that this phenomenon was attributed to the mitochondrial apoptosis and mitophagy pathways. Subsequently, using specific inhibitors, we found that apoptosis and autophagy had mutually reinforcing effects. In addition, further analysis of autophagy showed that PGD induced mitophagy by increasing BCL2 interacting protein 3 like (BNIP3L) levels.In vivo experiments demonstrated that PGD significantly inhibited tumor growth and increased the levels of apoptosis and autophagy in tumors. Overall, our findings showed that PGD induced cell death of hepatocellular carcinoma cells primarily through mitochondrial apoptosis and mitophagy pathways. Therefore, PGD can be used as an apoptosis and autophagy agonist in the research and development of antitumor agents.
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Affiliation(s)
- Fulong Nan
- Department of Special Medicine, Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Wenlong Nan
- China Animal Health and Epidemiology Center, Qingdao 266000, China
| | - Zhongjie Yu
- Department of Special Medicine, Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Hui Wang
- Department of Special Medicine, Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Xiaoni Cui
- Sino-Cell Biomed Co., Ltd., Qingdao 266000, China
| | - Shasha Jiang
- Department of Special Medicine, Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Xianjuan Zhang
- Department of Special Medicine, Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Jun Li
- Department of Special Medicine, Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Zhifei Wang
- Department of Special Medicine, Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Shuyun Zhang
- Department of Special Medicine, Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Bin Wang
- Department of Special Medicine, Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, Qingdao 266000, China.
| | - Yiquan Li
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun 130000, China.
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16
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Kim HL, Min DE, Lee SK, Choi BK, Lee DR. Scrophularia buergeriana Extract (Brainon) Attenuates Neuroinflammation in BV-2 Microglia Cells and Promotes Neuroprotection in SH-SY5Y Neuroblastoma Cells. J Med Food 2023; 26:328-341. [PMID: 37092995 DOI: 10.1089/jmf.2022.k.0132] [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: 04/25/2023] Open
Abstract
Microglia-induced neuroinflammation is one of the causative factors in cognitive dysfunction and neurodegenerative disorders. Our previous studies have revealed several benefits of Scrophularia buergeriana extract (Brainon®) in the central nervous system, but the underlying mechanism of action has not been elucidated. This study is purposed to investigate the anti-inflammatory and neuroprotective mechanisms of Brainon in the BV-2 condition SH-SY5Y model. Lipopolysaccharide (LPS)-induced BV-2 conditioned media (CM) were used to treat SH-SY5Y cells to investigate neuroprotective effects of the extract against microglial cytotoxicity. Results demonstrated that pretreated Brainon decreased nitric oxide release, the inducible nitric oxide synthase expression level, and expression of cytokines like interleukin-6, interleukin-1β, and tumor necrosis factor-α by blocking expression of TLR4/MyD88 and NLRP3 and suppressing nuclear factor κB/AP-1 and p38/JNK signaling pathways in LPS-induced BV-2 cells. In addition, when SH-SY5Y cells were treated with CM, pretreatment with Brainon increased neuronal viability by upregulating expression of antioxidant proteins like as SODs and Gpx-1. Increased autophagy and mitophagy-associated proteins also provide important clues for SH-SY5Y to prevent apoptosis by Brainon. Brainon also modulated mTOR/AMPK signaling to clear misfolded proteins or damaged mitochondria via auto/mitophagy to protect SH-SY5Y cells from CM. Taken together, these results indicate that Brainon could reduce inflammatory mediators secreted from BV-2 cells and prevent apoptosis by increasing antioxidant and auto/mitophagy mechanisms by regulating mTOR/AMPK signaling in SH-SY5Y cells. Therefore, Brainon has the potential to be developed as a natural product in a brain health functional food to inhibit cognitive decline and neuronal death.
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Affiliation(s)
- Hae-Lim Kim
- Research Institute, NUON Co., Ltd., Seongnam, Korea
| | - Da-Eun Min
- Research Institute, NUON Co., Ltd., Seongnam, Korea
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17
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Pockes S, Walters MA, Ashe KH. Targeting caspase-2 interactions with tau in Alzheimer's disease and related dementias. Transl Res 2023; 254:34-40. [PMID: 36343883 PMCID: PMC9991976 DOI: 10.1016/j.trsl.2022.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/26/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022]
Abstract
Targeting amyloid-β plaques and tau tangles has failed to provide effective treatments for Alzheimer's disease and related dementias (ADRD). A more fruitful pathway to ADRD therapeutics may be the development of therapies that target common signaling pathways that disrupt synaptic connections and impede communication between neurons. In this review, we present our characterization of a signaling pathway common to several neurological diseases featuring dementia including Alzheimer's disease, frontotemporal dementia, Lewy body dementia, and Huntington's disease. This signaling pathway features the cleavage of tau by caspase-2 (Casp2) yielding Δtau314 (Casp2/tau/Δtau314). Through a not yet fully delineated mechanism, Δtau314 catalyzes the mislocalization and accumulation of tau to dendritic spines leading to the internalization of AMPA receptors and the concomitant weakening of synaptic transmission. Here, we review the accumulated evidence supporting Casp2 as a druggable target and its importance in ADRD. Additionally, we provide a brief overview of our initial medicinal chemistry explorations aimed at the preparation of novel, brain penetrant Casp2 inhibitors. We anticipate that this review will spark broader interest in Casp2 as a target for restoring synaptic dysfunction in ADRD.
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Affiliation(s)
- Steffen Pockes
- Institute of Pharmacy, University of Regensburg, Regensburg, Germany; Department of Medicinal Chemistry, Institute for Therapeutics Discovery and Development, University of Minnesota, Minneapolis, Minnesota; Department of Neurology, University of Minnesota, Minneapolis, Minnesota.
| | - Michael A Walters
- Department of Medicinal Chemistry, Institute for Therapeutics Discovery and Development, University of Minnesota, Minneapolis, Minnesota.
| | - Karen H Ashe
- Department of Neurology, University of Minnesota, Minneapolis, Minnesota.
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18
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The inhibition mechanism and death mode of Microcystis aeruginosa induced by the continuous pressure of artemisinin sustained-release microspheres (ASMs). ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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19
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Wang Y, Wang D, Zhao W, Liu H, Li L, Bai J. Inhibitory effect and mechanism of a compound essential oils on Cladophora glomerata. MARINE POLLUTION BULLETIN 2023; 188:114668. [PMID: 36736262 DOI: 10.1016/j.marpolbul.2023.114668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/07/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Cladophora glomerata (C. glomerata) is a typical macroalgae inducing green tide and affecting economic benefits in aquaculture. A high-efficiency, environment friendly compound essential oils (CEOs) was provided to control C. glomerata blooms. The inhibition effect of CEOs against C. glomerata was assessed through the growth, cellular morphology and the physiological and biochemical indexes of C. glomerata. Results of the Chl-a content indicated that 300 μL/L CEOs could significantly inhibited the growth (85 % ± 2 %) of C. glomerata on the 11th day; the damage degree of algal thallus can be observed based on the results of cell morphology; the results of the physiological and biochemical indicators presented the decreased photosynthetic capacity, the dysfunction of antioxidant system and the algal apoptosis gene caspase- 8, 9, 3 activated when C. glomerata exposed to CEOs. This study elucidated the effect and mechanism of CEOs control the green tide induced by C. glomerata.
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Affiliation(s)
- Yanqun Wang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Dengyu Wang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Wenxi Zhao
- Marine Science Research Institute of Shandong Province, National Oceanographic Center, Qingdao, Qingdao 266100, China
| | - Hongjun Liu
- Marine Science Research Institute of Shandong Province, National Oceanographic Center, Qingdao, Qingdao 266100, China
| | - Li Li
- Marine Science Research Institute of Shandong Province, National Oceanographic Center, Qingdao, Qingdao 266100, China.
| | - Jie Bai
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China.
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20
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Svandova E, Lesot H, Sharpe P, Matalova E. Making the head: Caspases in life and death. Front Cell Dev Biol 2023; 10:1075751. [PMID: 36712975 PMCID: PMC9880857 DOI: 10.3389/fcell.2022.1075751] [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: 10/20/2022] [Accepted: 12/29/2022] [Indexed: 01/14/2023] Open
Abstract
The term apoptosis, as a way of programmed cell death, was coined a half century ago and since its discovery the process has been extensively investigated. The anatomy and physiology of the head are complex and thus apoptosis has mostly been followed in separate structures, tissues or cell types. This review aims to provide a comprehensive overview of recent knowledge concerning apoptosis-related molecules involved in the development of structures of head with a particular focus on caspases, cysteine proteases having a key position in apoptotic pathways. Since many classical apoptosis-related molecules, including caspases, are emerging in several non-apoptotic processes, these were also considered. The largest organ of the head region is the brain and its development has been extensively investigated, including the roles of apoptosis and related molecules. Neurogenesis research also includes sensory organs such as the eye and ear, efferent nervous system and associated muscles and glands. Caspases have been also associated with normal function of the skin and hair follicles. Regarding mineralised tissues within craniofacial morphogenesis, apoptosis in bones has been of interest along with palate fusion and tooth development. Finally, the role of apoptosis and caspases in angiogenesis, necessary for any tissue/organ development and maintenance/homeostasis, are discussed. Additionally, this review points to abnormalities of development resulting from improper expression/activation of apoptosis-related molecules.
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Affiliation(s)
- Eva Svandova
- Faculty of Medicine, Masaryk University, Brno, Czechia,*Correspondence: Eva Svandova,
| | - Herve Lesot
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czechia
| | - Paul Sharpe
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czechia,Centre for Craniofacial and Regenerative Biology, Faculty of Dentistry, Oral, and Craniofacial Sciences, King’s College London, London, United Kingdom
| | - Eva Matalova
- Department of Physiology, University of Veterinary Sciences, Brno, Czechia
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21
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Maeda N, Shimizu S, Takahashi Y, Kubota R, Uomoto S, Takesue K, Takashima K, Okano H, Ojiro R, Ozawa S, Tang Q, Jin M, Ikarashi Y, Yoshida T, Shibutani M. Oral Exposure to Lead Acetate for 28 Days Reduces the Number of Neural Progenitor Cells but Increases the Number and Synaptic Plasticity of Newborn Granule Cells in Adult Hippocampal Neurogenesis of Young-Adult Rats. Neurotox Res 2022; 40:2203-2220. [PMID: 36098941 DOI: 10.1007/s12640-022-00577-5] [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: 02/07/2022] [Revised: 08/12/2022] [Accepted: 08/31/2022] [Indexed: 12/31/2022]
Abstract
Lead (Pb) causes developmental neurotoxicity. Developmental exposure to Pb acetate (PbAc) induces aberrant hippocampal neurogenesis by increasing or decreasing neural progenitor cell (NPC) subpopulations in the dentate gyrus (DG) of rats. To investigate whether hippocampal neurogenesis is similarly affected by PbAc exposure in a general toxicity study, 5-week-old Sprague-Dawley rats were orally administered PbAc at 0, 4000, and 8000 ppm (w/v) in drinking water for 28 days. After exposure to 4000 or 8000 ppm PbAc, Pb had accumulated in the brains. Neurogenesis was suppressed by 8000 ppm PbAc, which was related to decreased number of type-2b NPCs, although number of mature granule cells were increased by both PbAc doses. Gene expression in the 8000 ppm PbAc group suggested suppressed NPC proliferation and increased apoptosis resulting in suppressed neurogenesis. PbAc exposure increased numbers of metallothionein-I/II+ cells and GFAP+ astrocytes in the DG hilus, and upregulated Mt1, antioxidant genes (Hmox1 and Gsta5), and Il6 in the DG, suggesting the induction of oxidative stress and neuroinflammation related to Pb accumulation resulting in suppressed neurogenesis. PbAc at 8000 ppm also upregulated Ntrk2 and increased the number of CALB2+ interneurons, suggesting the activation of BDNF-TrkB signaling and CALB2+ interneuron-mediated signals to ameliorate suppressed neurogenesis resulting in increased number of newborn granule cells. PbAc at both doses increased the number of ARC+ granule cells, suggesting the facilitation of synaptic plasticity of newborn granule cells through the activation of BDNF-TrkB signaling. These results suggest that PbAc exposure during the young-adult stage disrupted hippocampal neurogenesis, which had a different pattern from developmental exposure to PbAc. However, the induction of oxidative stress/neuroinflammation and activation of identical cellular signals occurred irrespective of the life stage at PbAc exposure.
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Affiliation(s)
- Natsuno Maeda
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Saori Shimizu
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Yasunori Takahashi
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Reiji Kubota
- Division of Environmental Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-shi, Kawasaki-ku, Kanagawa, 210-9501, Japan
| | - Suzuka Uomoto
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Keisuke Takesue
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Kazumi Takashima
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Hiromu Okano
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Ryota Ojiro
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Shunsuke Ozawa
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Qian Tang
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Meilan Jin
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Southwest University, BeiBei District, No. 2 Tiansheng Road, Chongqing, 400715, People's Republic of China
| | - Yoshiaki Ikarashi
- Division of Environmental Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-shi, Kawasaki-ku, Kanagawa, 210-9501, Japan
| | - Toshinori Yoshida
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Makoto Shibutani
- Laboratory of Veterinary Pathology, Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan. .,Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan. .,Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.
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22
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Bradic M, Taleb S, Thomas B, Chidiac O, Robay A, Hassan N, Malek J, Ait Hssain A, Abi Khalil C. DNA methylation predicts the outcome of COVID-19 patients with acute respiratory distress syndrome. J Transl Med 2022; 20:526. [PMID: 36371196 PMCID: PMC9652914 DOI: 10.1186/s12967-022-03737-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 10/30/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND COVID-19 infections could be complicated by acute respiratory distress syndrome (ARDS), increasing mortality risk. We sought to assess the methylome of peripheral blood mononuclear cells in COVID-19 with ARDS. METHODS We recruited 100 COVID-19 patients with ARDS under mechanical ventilation and 33 non-COVID-19 controls between April and July 2020. COVID-19 patients were followed at four time points for 60 days. DNA methylation and immune cell populations were measured at each time point. A multivariate cox proportional risk regression analysis was conducted to identify predictive signatures according to survival. RESULTS The comparison of COVID-19 to controls at inclusion revealed the presence of a 14.4% difference in promoter-associated CpGs in genes that control immune-related pathways such as interferon-gamma and interferon-alpha responses. On day 60, 24% of patients died. The inter-comparison of baseline DNA methylation to the last recorded time point in both COVID-19 groups or the intra-comparison between inclusion and the end of follow-up in every group showed that most changes occurred as the disease progressed, mainly in the AIM gene, which is associated with an intensified immune response in those who recovered. The multivariate Cox proportional risk regression analysis showed that higher methylation of the "Apoptotic execution Pathway" genes (ROC1, ZNF789, and H1F0) at inclusion increases mortality risk by over twofold. CONCLUSION We observed an epigenetic signature of immune-related genes in COVID-19 patients with ARDS. Further, Hypermethylation of the apoptotic execution pathway genes predicts the outcome. TRIAL REGISTRATION IMRPOVIE study, NCT04473131.
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Affiliation(s)
- Martina Bradic
- grid.5386.8000000041936877XDepartment of Genetic Medicine, Weill Cornell Medicine, New York, USA ,grid.51462.340000 0001 2171 9952Marie-Josee and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Sarah Taleb
- grid.452146.00000 0004 1789 3191Division of Genomics and Translational Biomedicine, College of Health and Life Sciences- HBKU, Doha, Qatar
| | - Binitha Thomas
- grid.416973.e0000 0004 0582 4340Epigenetics Cardiovascular Lab, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Omar Chidiac
- grid.416973.e0000 0004 0582 4340Epigenetics Cardiovascular Lab, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Amal Robay
- grid.416973.e0000 0004 0582 4340Epigenetics Cardiovascular Lab, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Nessiya Hassan
- grid.413548.f0000 0004 0571 546XNursery and midwifery research department, Hamad Medical Corporation., Doha, Qatar
| | - Joel Malek
- grid.416973.e0000 0004 0582 4340Genomics Core. Weill Cornell Medicine-Qatar., Doha, Qatar
| | - Ali Ait Hssain
- grid.413548.f0000 0004 0571 546XMedical Intensive Care Unit, Hamad Medical Corporation., Doha, Qatar
| | - Charbel Abi Khalil
- Department of Genetic Medicine, Weill Cornell Medicine, New York, USA. .,Epigenetics Cardiovascular Lab, Weill Cornell Medicine-Qatar, Doha, Qatar. .,Joan and Sanford I. Weill Department of Medicine., Weill Cornell Medicine, New York, USA.
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23
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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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24
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NLRP3 Inflammasome/Pyroptosis: A Key Driving Force in Diabetic Cardiomyopathy. Int J Mol Sci 2022; 23:ijms231810632. [PMID: 36142531 PMCID: PMC9501057 DOI: 10.3390/ijms231810632] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022] Open
Abstract
Diabetic cardiomyopathy (DCM), a serious diabetic complication, is a kind of low-grade inflammatory cardiovascular disorder. Due to the high risk of morbidity and mortality, DCM has demanded the attention of medical researchers worldwide. The pathophysiological nature of DCM is intricate, and the genesis and development of which are a consequence of the coaction of many factors. However, the exact pathogenesis mechanism of DCM remains unclear. Pyroptosis is a newly identified programmed cell death (PCD) that is directly related to gasdermin D(GSDMD). It is characterized by pore formation on the cell plasma membrane, the release of inflammatory mediators, and cell lysis. The initiation of pyroptosis is closely correlated with NOD-like receptor 3 (NLRP3) activation, which activates caspase-1 and promotes the cleaving of GSDMD. In addition to adjusting the host’s immune defense, NLRP3 inflammasome/pyroptosis plays a critical role in controlling the systemic inflammatory response. Recent evidence has indicated that NLRP3 inflammasome/pyroptosis has a strong link with DCM. Targeting the activation of NLRP3 inflammasome or pyroptosis may be a hopeful therapeutic strategy for DCM. The focus of this review is to summarize the relevant mechanisms of pyroptosis and the relative contributions in DCM, highlighting the potential therapeutic targets in this field.
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25
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Eid BG. Chrysin attenuates estradiol-induced endometrial hyperplasia in rats via enhancing PPARα activity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:54273-54281. [PMID: 35301625 DOI: 10.1007/s11356-022-19206-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
Endometrial hyperplasia (EH) is a complex condition that commonly affects women after menopause. Since the current available treatments for EH are mainly invasive, there is a need for developing new treatment modalities. Chrysin (Ch) is a dihydroxyflavone with numerous promising therapeutic potentials. In this study, Ch's protective effects on estradiol (E2)-induced EH were studied in rats. Animals were allocated randomly to five groups and were treated for 4 weeks as follows: Group 1, control: received the vehicle; group 2, Ch: received Ch 25 mg/kg; group 3, estradiol (E2): received E2 (3 mg/kg) 3 × weekly subcutaneously and the vehicle. Group 4, E2 + Ch 10 mg/kg and group 5, E2 + Ch 25 mg/kg: Ch was given once daily at 10 mg/kg or 25 mg/kg, respectively. In addition, E2 was administered 3 × weekly (3 mg/kg) in groups 4 and 5. Ch inhibited the E2-induced increase in uterine weights and histopathological changes. Ch lowered the cyclin D1 expression. Ch raised the caspase-3 content and Bax mRNA expression. Furthermore, it corrected the raised Bcl2 mRNA expression due to E2. Ch inhibited MDA accumulation and GSH depletion. It also prevents E2-induced SOD and GPx exhaustion. It also ameliorated the rise in NFκB, TNF-α, and IL-6 expression. These effects were correlated with an enhanced PPARα activity ratio relative to the E2 group. This suggests that Ch attenuates EH in this model by exerting anti-proliferative, anti-oxidant, and anti-inflammatory effects partially through increasing PPARα activity.
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Affiliation(s)
- Basma Ghazi Eid
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
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26
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Zhu J, Gillissen B, Dang Tran DL, May S, Ulrich C, Stockfleth E, Eberle J. Inhibition of Cell Proliferation and Cell Viability by Sinecatechins in Cutaneous SCC Cells Is Related to an Imbalance of ROS and Loss of Mitochondrial Membrane Potential. Antioxidants (Basel) 2022; 11:antiox11071416. [PMID: 35883905 PMCID: PMC9312260 DOI: 10.3390/antiox11071416] [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: 06/20/2022] [Revised: 07/17/2022] [Accepted: 07/18/2022] [Indexed: 02/05/2023] Open
Abstract
The term sinecatechins designates an extract containing a high percentage of catechins obtained from green tea, which is commercially registered as Veregen or Polyphenon E (PE) and may be considered for treatment of cutaneous squamous cell carcinoma (cSCC) and actinic keratosis (AK). As shown here, treatment of four cSCC cell lines with 200 µg/mL of PE resulted in strong, dose-dependent decrease in cell proliferation (20–30%) as well as strongly decreased cell viability (4–21% of controls, 48 h). Effects correlated with loss of mitochondrial membrane potential, whereas early apoptosis was less pronounced. At the protein level, some activation of caspase-3 and enhanced expression of the CDK inhibitor p21 were found. Loss of MMP and induced cell death were, however, largely independent of caspases and of the proapoptotic Bcl-2 proteins Bax and Bak, suggesting that sinecatechins induce also non-apoptotic, alternative cell death pathways, in addition to apoptosis. Reactive oxygen species (ROS) were downregulated in response to PE at 4 h, followed by an increase at 24 h. The contributory role of initially reduced ROS was supported by the antioxidant N-acetyl cysteine, which in combination with PE further enhanced the negative effects on cell viability. Thus, sinecatechins inhibited cell proliferation and viability of cSCC cells, which could suggest the use of PE for AK treatment. The mechanisms appear as linked to an imbalance of ROS levels.
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Affiliation(s)
- Jiaqi Zhu
- Skin Cancer Centre Charité, Department of Dermatology and Allergy, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (J.Z.); (D.L.D.T.); (S.M.); (C.U.)
- Department of Gynecology and Obstetrics, Jilin University, Changchun 130001, China
| | - Bernd Gillissen
- Department of Hematology, Oncology, and Tumor Immunology, Charité–Universitätsmedizin Berlin, 13125 Berlin, Germany;
| | - Dieu Linh Dang Tran
- Skin Cancer Centre Charité, Department of Dermatology and Allergy, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (J.Z.); (D.L.D.T.); (S.M.); (C.U.)
- Beuth-Hochschule für Technik Berlin–University of Applied Sciences, Luxemburger Str. 10, 13353 Berlin, Germany
| | - Stefanie May
- Skin Cancer Centre Charité, Department of Dermatology and Allergy, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (J.Z.); (D.L.D.T.); (S.M.); (C.U.)
| | - Claas Ulrich
- Skin Cancer Centre Charité, Department of Dermatology and Allergy, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (J.Z.); (D.L.D.T.); (S.M.); (C.U.)
| | - Eggert Stockfleth
- Dermatologie, Venerologie und Allergologie, Klinikum Bochum, Ruhr-Universität Bochum, Gudrunstr. 56, 44791 Bochum, Germany;
| | - Jürgen Eberle
- Skin Cancer Centre Charité, Department of Dermatology and Allergy, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (J.Z.); (D.L.D.T.); (S.M.); (C.U.)
- Correspondence: ; Tel.: +49-30-450-518-383
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27
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Types of necroinflammation, the effect of cell death modalities on sterile inflammation. Cell Death Dis 2022; 13:423. [PMID: 35501340 PMCID: PMC9061831 DOI: 10.1038/s41419-022-04883-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/13/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022]
Abstract
Distinct types of immune responses are activated by infections, which cause the development of type I, II, or III inflammation, regulated by Th1, Th2, Th17 helper T cells and ILC1, ILC2 and ILC3 cells, respectively. While the classification of immune responses to different groups of pathogens is widely accepted, subtypes of the immune response elicited by sterile inflammation have not yet been detailed. Necroinflammation is associated with the release of damage-associated molecular patterns (DAMP) from dying cells. In this review, we present that the distinct molecular mechanisms activated during apoptosis, necroptosis, pyroptosis, and ferroptosis lead to the release of different patterns of DAMPs and their suppressors, SAMPs. We summarize the currently available data on how regulated cell death pathways and released DAMPs and SAMPs direct the differentiation of T helper and ILC cells. Understanding the subtypes of necroinflammation can be crucial in developing strategies for the treatment of sterile inflammatory diseases caused by cell death processes.
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28
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Weghorst F, Mirzakhanyan Y, Hernandez KL, Gershon PD, Cramer KS. Non-Apoptotic Caspase Activity Preferentially Targets a Novel Consensus Sequence Associated With Cytoskeletal Proteins in the Developing Auditory Brainstem. Front Cell Dev Biol 2022; 10:844844. [PMID: 35330912 PMCID: PMC8940215 DOI: 10.3389/fcell.2022.844844] [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: 12/28/2021] [Accepted: 01/28/2022] [Indexed: 11/24/2022] Open
Abstract
The auditory brainstem relies on precise circuitry to facilitate sound source localization. In the chick, the development of this specialized circuitry requires non-apoptotic activity of caspase-3, for which we previously identified several hundred proteolytic substrates. Here we tested whether the sequence of the caspase cleavage site differentially encodes proteolytic preference in apoptotic and non-apoptotic contexts. We constructed a consensus sequence for caspase activity in the non-apoptotic chick auditory brainstem comprising the four residues N-terminal to the cleavage site: IX(G/R)D↓ where X represents no significant enrichment and ↓ represents the cleavage site. We identified GO terms significantly enriched among caspase substrates containing motifs found in the above consensus sequence. (G/R)D↓ was associated with the term “Structural Constituent of Cytoskeleton” (SCoC), suggesting that SCoC proteins may be specifically targeted by caspase activity during non-apoptotic developmental processes. To ascertain whether this consensus sequence was specific to the non-apoptotic auditory brainstem at embryonic day (E) 10, we used protein mass spectrometry of brainstems harvested at a time when auditory brainstem neurons undergo apoptotic cell death (E13). The apoptotic motif VD was significantly enriched among E13 cleavage sites, indicating that motif preference at the P2 subsite had shifted toward the canonical caspase consensus sequence. Additionally, Monte Carlo simulations revealed that only the GD motif was associated with SCoC substrates in the apoptotic auditory brainstem, indicating that GD encodes specificity for SCoC proteins in both non-apoptotic and apoptotic contexts, despite not being preferred in the latter. Finally, to identify candidate human non-apoptotic consensus sequences, we used Monte Carlo analyses to determine motifs and motif pairs associated with SCoC caspase substrates in the Degrabase, a database of cleavage sites in human apoptotic cell lines. We found 11 motifs significantly associated with SCoC proteolysis, including IXXD and GD. We employed a stepwise method to select motif pairs that optimized SCoC specificity for a given coverage of SCoC cleavage events, yielding 11 motif pairs likely to be preferred in SCoC-directed human non-apoptotic caspase consensus sequences. GD + IXXD was among these motif pairs, suggesting a conservation of non-apoptotic consensus sites among vertebrates.
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Affiliation(s)
- Forrest Weghorst
- Department of Neurobiology and Behavior, UC Irvine, Irvine, CA, United States
| | - Yeva Mirzakhanyan
- Department of Molecular Biology and Biochemistry, UC Irvine, Irvine, CA, United States
| | | | - Paul D Gershon
- Department of Molecular Biology and Biochemistry, UC Irvine, Irvine, CA, United States
| | - Karina S Cramer
- Department of Neurobiology and Behavior, UC Irvine, Irvine, CA, United States
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Safari F, Akbari B. Knockout of caspase-7 gene improves the expression of recombinant protein in CHO cell line through the cell cycle arrest in G2/M phase. Biol Res 2022; 55:2. [PMID: 35016732 PMCID: PMC8753818 DOI: 10.1186/s40659-021-00369-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 12/30/2021] [Indexed: 11/30/2022] Open
Abstract
Background Chinese hamster ovary cell line has been used routinely as a bioproduction factory of numerous biopharmaceuticals. So far, various engineering strategies have been recruited to improve the production efficiency of this cell line such as apoptosis engineering. Previously, it is reported that the caspase-7 deficiency in CHO cells reduces the cell proliferation rate. But the effect of this reduction on the CHO cell productivity remained unclear. Hence, in the study at hand the effect of caspase-7 deficiency was assessed on the cell growth, viability and protein expression. In addition, the enzymatic activity of caspase-3 was investigated in the absence of caspase-7. Results Findings showed that in the absence of caspase-7, both cell growth and cell viability were decreased. Cell cycle analysis illustrated that the CHO knockout (CHO-KO) cells experienced a cell cycle arrest in G2/M phase. This cell cycle arrest resulted in a 1.7-fold increase in the expression of luciferase in CHO-KO cells compared to parenteral cells. Furthermore, in the apoptotic situation the enzymatic activity of caspase-3 in CHO-KO cells was approximately 3 times more than CHO-K1 cells. Conclusions These findings represented that; however, caspase-7 deficiency reduces the cell proliferation rate but the resulted cell cycle arrest leads to the enhancement of recombinant protein expression. Moreover, increasing in the caspase-3 enzymatic activity compensates the absence of caspase-7 in the caspase cascade of apoptosis.
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Affiliation(s)
- Fatemeh Safari
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Meshkinfam Ave, Shiraz, Iran. .,Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Bahman Akbari
- Department of Medical Biotechnology, School of Medical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Yin ZG, Liu XW, Chen L, Liu XL, Pan BW, Zhou Y. Regio- and stereoselective synthesis and evaluation of densely functionalized bispiro[oxindole-isoxazole-indandione] hybrids as anticancer agents. NEW J CHEM 2022. [DOI: 10.1039/d2nj03349f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This is the combination of three key pharmacophores through bispiro quaternary carbon atoms and evaluation of their anticancer activity.
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Affiliation(s)
- Zhi-Gang Yin
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang 550025, China
| | - Xiong-Wei Liu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Lin Chen
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang 550025, China
| | - Xiong-Li Liu
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang 550025, China
| | - Bo-Wen Pan
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Ying Zhou
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
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31
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Pavlidis P, Gouveris H, Nikolaidis V, Schittek G. Changes of serum levels of Caspase-3 after trauma and ototoxic damage of the cochlea in rabbits: An in vivo study. INDIAN JOURNAL OF OTOLOGY 2022. [DOI: 10.4103/indianjotol.indianjotol_29_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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32
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Pan NL, Liao JX, Huang MY, Zhang YQ, Chen JX, Zhang ZW, Yang ZX, Long XE, Wu XT, Sun J. Lysosome-targeted ruthenium(II) complexes induce both apoptosis and autophagy in HeLa cells. J Inorg Biochem 2022; 229:111729. [DOI: 10.1016/j.jinorgbio.2022.111729] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 12/19/2022]
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Eldehna WM, Salem R, Elsayed ZM, Al-Warhi T, Knany HR, Ayyad RR, Traiki TB, Abdulla MH, Ahmad R, Abdel-Aziz HA, El-Haggar R. Development of novel benzofuran-isatin conjugates as potential antiproliferative agents with apoptosis inducing mechanism in Colon cancer. J Enzyme Inhib Med Chem 2021; 36:1424-1435. [PMID: 34176414 PMCID: PMC8245078 DOI: 10.1080/14756366.2021.1944127] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/11/2021] [Indexed: 02/07/2023] Open
Abstract
In the current work, a new set of carbohydrazide linked benzofuran-isatin conjugates (5a-e and 7a-i) was designed and synthesised. The anticancer activity for compounds (5b-d, 7a, 7b, 7d and 7g) was measured against NCI-55 human cancer cell lines. Compound 5d was the most efficient, and thus subjected to the five-dose screen where it showed excellent broad activity against almost all tested cancer subpanels. Furthermore, all conjugates (5a-e and 7a-i) showed a good anti-proliferative activity towards colorectal cancer SW-620 and HT-29 cell lines, with an excellent inhibitory effect for compounds 5a and 5d (IC50 = 8.7 and 9.4 µM (5a), and 6.5 and 9.8 µM for (5d), respectively). Both compounds displayed selective cytotoxicity with good safety profile. In addition, both compounds provoked apoptosis in a dose dependent manner in SW-620 cells. Also, they significantly inhibited the anti-apoptotic Bcl2 protein expression and increased the cleaved PARP level that resulted in SW-620 cells apoptosis.
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Affiliation(s)
- Wagdy M. Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Rofaida Salem
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Zainab M. Elsayed
- Scientific Research and Innovation Support Unit, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Tarfah Al-Warhi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Hamada R. Knany
- Department of Pharmacognosy, College of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Rezk R. Ayyad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Thamer Bin Traiki
- Colorectal Research Chair, Department of Surgery, King Khalid University Hospital, King Saud University College of Medicine, Riyadh, Saudi Arabia
| | - Maha-Hamadien Abdulla
- Colorectal Research Chair, Department of Surgery, King Khalid University Hospital, King Saud University College of Medicine, Riyadh, Saudi Arabia
| | - Rehan Ahmad
- Colorectal Research Chair, Department of Surgery, King Khalid University Hospital, King Saud University College of Medicine, Riyadh, Saudi Arabia
| | - Hatem A. Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Center, Dokki, Giza, Egypt
| | - Radwan El-Haggar
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
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Ji H, Yu Z, He L, Zhu J, Cao X, Song X. Programmed cell death induced by modified clay in controlling Prorocentrum donghaiense bloom. J Environ Sci (China) 2021; 109:123-134. [PMID: 34607661 DOI: 10.1016/j.jes.2021.03.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/24/2021] [Accepted: 03/24/2021] [Indexed: 06/13/2023]
Abstract
Modified clay (MC), an effective material used for the emergency elimination of algal blooms, can rapidly reduce the biomass of harmful algal blooms (HABs) via flocculation. After that, MC can still control bloom population through indirect effects such as oxidative stress, which was initially proposed to be related to programmed cell death (PCD) at molecular level. To further study the MC induced cell death in residual bloom organisms, especially identifying PCD process, we studied the physiological state of the residual Prorocentrum donghaiense. The experimental results showed that flocculation changed the physiological state of the residual cells, as evidenced by growth inhibition and increased reactive oxygen species production. Moreover, this research provides biochemical and ultrastructural evidence showing that MC induces PCD in P. donghaiense. Nuclear changes were observed, and increased caspase-like activity, externalization of phosphatidylserine and DNA fragmentation were detected in MC-treated groups and quantified. And the mitochondrial apoptosis pathway was activated in both MC-treated groups. Besides, the features of MC-induced PCD in a unicellular organism were summarized and its concentration dependent manner was proved. All our preliminary results elucidate the mechanism through which MC can further control HABs by inducing PCD and suggest a promising application of PCD in bloom control.
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Affiliation(s)
- Hena Ji
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Zhiming Yu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Liyan He
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Jianan Zhu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Xihua Cao
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Xiuxian Song
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
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Yu B, Kong D, Cheng C, Xiang D, Cao L, Liu Y, He Y. Assembly and recognition of keratins: A structural perspective. Semin Cell Dev Biol 2021; 128:80-89. [PMID: 34654627 DOI: 10.1016/j.semcdb.2021.09.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/22/2021] [Accepted: 09/29/2021] [Indexed: 12/21/2022]
Abstract
Keratins are one of the major components of cytoskeletal network and assemble into fibrous structures named intermediate filaments (IFs), which are important for maintaining the mechanical properties of cells and tissues. Over the past decades, evidence has shown that the functions of keratins go beyond providing mechanical support for cells, they interact with multiple cellular components and are widely involved in the pathways of cell proliferation, differentiation, motility and death. However, the structural details of keratins and IFs are largely missing and many questions remain regarding the mechanisms of keratin assembly and recognition. Here we briefly review the current structural models and assembly of keratins as well as the interactions of keratins with the binding partners, which may provide a structural view for understanding the mechanisms of keratins in the biological activities and the related diseases.
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Affiliation(s)
- Bowen Yu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Dandan Kong
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Cheng
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dongxi Xiang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Longxing Cao
- School of Life Science, Westlake University, Hangzhou, Zhejiang, China
| | - Yingbin Liu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongning He
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Biliary-Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China.
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36
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Foglietta F, Gola G, Biasibetti E, Capucchio MT, Bruni I, Francovich A, Durando G, Serpe L, Canaparo R. 5-Aminolevulinic Acid Triggered by Ultrasound Halts Tumor Proliferation in a Syngeneic Model of Breast Cancer. Pharmaceuticals (Basel) 2021; 14:972. [PMID: 34681196 PMCID: PMC8540919 DOI: 10.3390/ph14100972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/19/2021] [Accepted: 09/20/2021] [Indexed: 02/03/2023] Open
Abstract
Sonodynamic therapy is a bimodal therapeutic approach in which a chemical compound and ultrasound (US) synergistically act to elicit oxidative damage, triggering cancer cell death. Despite encouraging results, mainly for anticancer treatment, sonodynamics is still far from having a clinical application. Therefore, to close the gap between the bench and bedside, more in vivo studies are needed. In this investigation, the combined effect of 5-aminolevulinic acid (Ala), a natural porphyrin precursor, plus exposure to US, was investigated in vivo on a syngeneic breast cancer model. Real-time RT-PCR, Western blotting, and immunohistochemistry assays were performed to evaluate the effect of sonodynamic treatment on the main cancer hallmarks. The sonodynamic-treated group had a significant reduction (p ≤ 0.0001) in tumor size compared to the untreated group, and the Ala- and US-only treated groups, where a strong decrease (p ≤ 0.0001) in Ki67 protein expression was the most relevant feature of sonodynamic-treated cancer tissues. Moreover, oxidative stress was confirmed as the pivotal driver of the anticancer effect through cell cycle arrest, apoptosis, and autophagy; thus, sonodynamics should be explored further for cancer treatment.
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Affiliation(s)
- Federica Foglietta
- Department of Drug Science and Technology, University of Torino, 10125 Torino, Italy; (F.F.); (G.G.); (R.C.)
| | - Giulia Gola
- Department of Drug Science and Technology, University of Torino, 10125 Torino, Italy; (F.F.); (G.G.); (R.C.)
| | - Elena Biasibetti
- Histopathology Department CIBA, Istituto Zooprofilattico Sperimentale di Piemonte, Liguria e Valle d’Aosta, 10154 Torino, Italy;
| | - Maria Teresa Capucchio
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (M.T.C.); (I.B.)
| | - Iside Bruni
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (M.T.C.); (I.B.)
| | - Andrea Francovich
- Institut de Physiologie, Université de Fribourg, 1770 Fribourg, Switzerland;
| | - Gianni Durando
- National Institute of Metrological Research (INRIM), 10135 Torino, Italy;
| | - Loredana Serpe
- Department of Drug Science and Technology, University of Torino, 10125 Torino, Italy; (F.F.); (G.G.); (R.C.)
| | - Roberto Canaparo
- Department of Drug Science and Technology, University of Torino, 10125 Torino, Italy; (F.F.); (G.G.); (R.C.)
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Esfandiari Nazzaro E, Sabei FY, Vogel WK, Nazari M, Nicholson KS, Gafken PR, Taratula O, Taratula O, Davare MA, Leid M. Discovery and Validation of a Compound to Target Ewing's Sarcoma. Pharmaceutics 2021; 13:pharmaceutics13101553. [PMID: 34683845 PMCID: PMC8538197 DOI: 10.3390/pharmaceutics13101553] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 12/28/2022] Open
Abstract
Ewing’s sarcoma, characterized by pathognomonic t (11; 22) (q24; q12) and related chromosomal ETS family translocations, is a rare aggressive cancer of bone and soft tissue. Current protocols that include cytotoxic chemotherapeutic agents effectively treat localized disease; however, these aggressive therapies may result in treatment-related morbidities including second-site cancers in survivors. Moreover, the five-year survival rate in patients with relapsed, recurrent, or metastatic disease is less than 30%, despite intensive therapy with these cytotoxic agents. By using high-throughput phenotypic screening of small molecule libraries, we identified a previously uncharacterized compound (ML111) that inhibited in vitro proliferation of six established Ewing’s sarcoma cell lines with nanomolar potency. Proteomic studies show that ML111 treatment induced prometaphase arrest followed by rapid caspase-dependent apoptotic cell death in Ewing’s sarcoma cell lines. ML111, delivered via methoxypoly(ethylene glycol)-polycaprolactone copolymer nanoparticles, induced dose-dependent inhibition of Ewing’s sarcoma tumor growth in a murine xenograft model and invoked prometaphase arrest in vivo, consistent with in vitro data. These results suggest that ML111 represents a promising new drug lead for further preclinical studies and is a potential clinical development for the treatment of Ewing’s sarcoma.
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Affiliation(s)
- Ellie Esfandiari Nazzaro
- Departments of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; (E.E.N.); (F.Y.S.); (W.K.V.); (M.N.); (O.T.); (M.L.)
| | - Fahad Y. Sabei
- Departments of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; (E.E.N.); (F.Y.S.); (W.K.V.); (M.N.); (O.T.); (M.L.)
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 88723, Saudi Arabia
| | - Walter K. Vogel
- Departments of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; (E.E.N.); (F.Y.S.); (W.K.V.); (M.N.); (O.T.); (M.L.)
| | - Mohamad Nazari
- Departments of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; (E.E.N.); (F.Y.S.); (W.K.V.); (M.N.); (O.T.); (M.L.)
| | - Katelyn S. Nicholson
- Division of Pediatric Hematology & Oncology, Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA;
| | - Philip R. Gafken
- Proteomics & Metabolomics Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA;
| | - Olena Taratula
- Departments of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; (E.E.N.); (F.Y.S.); (W.K.V.); (M.N.); (O.T.); (M.L.)
| | - Oleh Taratula
- Departments of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; (E.E.N.); (F.Y.S.); (W.K.V.); (M.N.); (O.T.); (M.L.)
- Correspondence: (O.T.); (M.A.D.)
| | - Monika A. Davare
- Division of Pediatric Hematology & Oncology, Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA;
- Papé Pediatric Research Institute, Oregon Health & Science University, Portland, OR 97239, USA
- Correspondence: (O.T.); (M.A.D.)
| | - Mark Leid
- Departments of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; (E.E.N.); (F.Y.S.); (W.K.V.); (M.N.); (O.T.); (M.L.)
- Department of Integrative Biosciences, Oregon Health & Science University, Portland, OR 97239, USA
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Crucial Role of Reactive Oxygen Species (ROS) for the Proapoptotic Effects of Indirubin Derivatives in Cutaneous SCC Cells. Antioxidants (Basel) 2021; 10:antiox10101514. [PMID: 34679649 PMCID: PMC8532942 DOI: 10.3390/antiox10101514] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/31/2021] [Accepted: 09/13/2021] [Indexed: 01/04/2023] Open
Abstract
Efficient drugs are needed for countering the worldwide high incidence of cutaneous squamous cell carcinoma (cSCC) and actinic keratosis. Indirubin derivatives represent promising candidates, but their effects in cSCC cells have not been reported before. Here, we investigated the efficacy of three indirubin derivatives (DKP-071, -073 and -184) in four cSCC cell lines. High efficacy was seen in SCL-I, SCL-II, SCC-12 and SCC-13, resulting in up to 80% loss of cell proliferation, 60% loss of cell viability and 30% induced apoptosis (10 µM). Apoptosis was further enhanced in combinations with TNF-related apoptosis-inducing ligand (TRAIL). Induction of reactive oxygen species (ROS) appeared as critical for these effects. Thus, antioxidative pretreatment completely abolished apoptosis as well as restored cell proliferation and viability. Concerning the pathways, complete activation of caspases cascades (caspases-3, -4, -6, -7, -8 and -9), loss of mitochondrial membrane potential, activation of proapoptotic PKCδ (protein kinase C delta), inhibition of STAT3 (signal transducer and activator of transcription 3), downregulation of antiapoptotic XIAP (X-linked inhibitor of apoptosis protein) and survivin as well as upregulation of the proapoptotic Bcl-2 protein Puma and the cell cycle inhibitor p21 were obtained. Importantly, all activation steps were prevented by antioxidants, thus proving ROS as a master regulator of indirubins' antitumor effects. ROS induction presently develops as an important issue in anticancer therapy.
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Orchestration of Force Generation and Nuclear Collapse in Apoptotic Cells. Int J Mol Sci 2021; 22:ijms221910257. [PMID: 34638598 PMCID: PMC8508646 DOI: 10.3390/ijms221910257] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/03/2021] [Accepted: 09/20/2021] [Indexed: 12/26/2022] Open
Abstract
Apoptosis, or programmed cell death, is a form of cell suicide that is extremely important for ridding the body of cells that are no longer required, to protect the body against hazardous cells, such as cancerous ones, and to promote tissue morphogenesis during animal development. Upon reception of a death stimulus, the doomed cell activates biochemical pathways that eventually converge on the activation of dedicated enzymes, caspases. Numerous pieces of information on the biochemical control of the process have been gathered, from the successive events of caspase activation to the identification of their targets, such as lamins, which constitute the nuclear skeleton. Yet, evidence from multiple systems now shows that apoptosis is also a mechanical process, which may even ultimately impinge on the morphogenesis of the surrounding tissues. This mechanical role relies on dramatic actomyosin cytoskeleton remodelling, and on its coupling with the nucleus before nucleus fragmentation. Here, we provide an overview of apoptosis before describing how apoptotic forces could combine with selective caspase-dependent proteolysis to orchestrate nucleus destruction.
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Yong J, von Bremen J, Groeger S, Ruiz-Heiland G, Ruf S. Hypoxia-inducible factor 1-alpha acts as a bridge factor for crosstalk between ERK1/2 and caspases in hypoxia-induced apoptosis of cementoblasts. J Cell Mol Med 2021; 25:9710-9723. [PMID: 34523215 PMCID: PMC8505834 DOI: 10.1111/jcmm.16920] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/22/2021] [Accepted: 09/01/2021] [Indexed: 12/14/2022] Open
Abstract
Hypoxia‐induced apoptosis of cementoblasts (OCCM‐30) may be harmful to orthodontic treatment. Hypoxia‐inducible factor 1‐alpha (HIF‐1α) mediates the biological effects during hypoxia. Little is known about the survival mechanism capable to counteract cementoblast apoptosis. We aimed to investigate the potential roles of HIF‐1α, as well as the protein‐protein interactions with ERK1/2, using an in‐vitro model of chemical‐mimicked hypoxia and adipokines. Here, OCCM‐30 were co‐stimulated with resistin, visfatin or ghrelin under CoCl2‐mimicked hypoxia. In‐vitro investigations revealed that CoCl2‐induced hypoxia triggered activation of caspases, resulting in apoptosis dysfunction in cementoblasts. Resistin, visfatin and ghrelin promoted the phosphorylated ERK1/2 expression in OCCM‐30 cells. Furthermore, these adipokines inhibited hypoxia‐induced apoptosis at different degrees. These effects were reversed by pre‐treatment with ERK inhibitor (FR180204). In cells treated with FR180204, HIF‐1α expression was inhibited despite the presence of three adipokines. Using dominant‐negative mutants of HIF‐1α, we found that siHIF‐1α negatively regulated the caspase‐8, caspase‐9 and caspase‐3 gene expression. We concluded that HIF‐1α acts as a bridge factor in lengthy hypoxia‐induced apoptosis in an ERK1/2‐dependent pathway. Gene expressions of the caspases‐3, caspase‐8 and caspase‐9 were shown to be differentially regulated by adipokines (resistin, visfatin and ghrelin). Our study, therefore, provides evidence for the role of ERK1/2 and HIF‐1α in the apoptotic response of OCCM‐30 cells exposed to CoCl2‐mimicked hypoxia, providing potential new possibilities for molecular intervention in obese patients undergoing orthodontic treatment.
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Affiliation(s)
- Jiawen Yong
- Department of Orthodontics, Faculty of Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Julia von Bremen
- Department of Orthodontics, Faculty of Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Sabine Groeger
- Department of Periodontics, Faculty of Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Gisela Ruiz-Heiland
- Department of Orthodontics, Faculty of Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - Sabine Ruf
- Department of Orthodontics, Faculty of Medicine, Justus Liebig University Giessen, Giessen, Germany
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Hu XM, Li ZX, Zhang DY, Yang YC, Fu SA, Zhang ZQ, Yang RH, Xiong K. A systematic summary of survival and death signalling during the life of hair follicle stem cells. Stem Cell Res Ther 2021; 12:453. [PMID: 34380571 PMCID: PMC8359037 DOI: 10.1186/s13287-021-02527-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/26/2021] [Indexed: 12/13/2022] Open
Abstract
Hair follicle stem cells (HFSCs) are among the most widely available resources and most frequently approved model systems used for studying adult stem cells. HFSCs are particularly useful because of their self-renewal and differentiation properties. Additionally, the cyclic growth of hair follicles is driven by HFSCs. There are high expectations for the use of HFSCs as favourable systems for studying the molecular mechanisms that contribute to HFSC identification and can be applied to hair loss therapy, such as the activation or regeneration of hair follicles, and to the generation of hair using a tissue-engineering strategy. A variety of molecules are involved in the networks that critically regulate the fate of HFSCs, such as factors in hair follicle growth and development (in the Wnt pathway, Sonic hedgehog pathway, Notch pathway, and BMP pathway), and that suppress apoptotic cues (the apoptosis pathway). Here, we review the life cycle, biomarkers and functions of HFSCs, concluding with a summary of the signalling pathways involved in HFSC fate for promoting better understanding of the pathophysiological changes in the HFSC niche. Importantly, we highlight the potential mechanisms underlying the therapeutic targets involved in pathways associated with the treatment of hair loss and other disorders of skin and hair, including alopecia, skin cancer, skin inflammation, and skin wound healing.
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Affiliation(s)
- Xi-Min Hu
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Morphological Sciences Building, 172 Tongzi Po Road, Changsha, 410013, China.,Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Zhi-Xin Li
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Morphological Sciences Building, 172 Tongzi Po Road, Changsha, 410013, China
| | - Dan-Yi Zhang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Morphological Sciences Building, 172 Tongzi Po Road, Changsha, 410013, China
| | - Yi-Chao Yang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Morphological Sciences Building, 172 Tongzi Po Road, Changsha, 410013, China
| | - Shen-Ao Fu
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Morphological Sciences Building, 172 Tongzi Po Road, Changsha, 410013, China
| | - Zai-Qiu Zhang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Morphological Sciences Building, 172 Tongzi Po Road, Changsha, 410013, China
| | - Rong-Hua Yang
- Department of Burn Surgery, The First People's Hospital of Foshan, #81, Lingnan North Road, Foshan, 528000, China.
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Morphological Sciences Building, 172 Tongzi Po Road, Changsha, 410013, China. .,Hunan Key Laboratory of Ophthalmology, Changsha, 410008, China.
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Abstract
OBJECTIVES Osteoarthritis (OA) is known to be a slowly progressive disease that alters all tissue compartments of the joint involved with a characteristic degradation of the cartilage, bone remodeling, and inflammation. One of the prominent symptoms in OA patients is pain, but a few radiologic, inflammatory, or structurally related biomarkers have shown few if any associations with pain. This study aimed to assess serum levels of 92 markers involved in inflammatory pathways in patients with knee osteoarthritis (KOA) and evaluate their possible associations with the clinical pain intensity. MATERIALS AND METHODS Serum samples were collected from 127 KOA patients and 39 healthy participants with no knee pain. Each serum sample was analyzed for 92 inflammatory markers using the Proximity Extension Array (PEA) technology. Clinical pain intensity was assessed using a Visual Analog Scale, and patients completed the Knee Injury and Osteoarthritis Outcome Score (KOOS) questionnaire. RESULTS Fifteen markers were significantly different when comparing KOA patients and healthy participants. Two markers, fibroblast growth factor-21 and Eukaryotic translation initiation factor 4E-binding protein 1 (4E-BP1), correlated positively with pain intensity (R=0.235, P=0.008; R=0.233, P=0.008). Moreover, a linear regression model showed interleukin-6, macrophage colony-stimulating factor 1, fibroblast growth factor-21, and tumor necrosis factor superfamily member 12 (TWEAK) as significant independent parameters for pain intensity. DISCUSSION The associations between specific cytokines and KOA pain intensities provide new insights into the understanding of the underlying factors driving the pain in OA.
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NISES-AnPe-428 cell line derived from the Chinese oak silkworm Antheraea pernyi is permissive for multiple nucleopolyhedrovirus species from insects of four different families. Cytotechnology 2021; 73:643-655. [PMID: 34349353 DOI: 10.1007/s10616-021-00485-0] [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: 03/11/2021] [Accepted: 06/22/2021] [Indexed: 10/20/2022] Open
Abstract
The cell line NISES-AnPe-428 (AnPe), derived from the Chinese oak silkworm Antheraea pernyi, was characterized for its permissiveness and productivity for six different nucleopolyhedrovirus (NPV) species. These NPVs included homologous Antheraea pernyi NPV (AnpeNPV) and heterologous Autographa californica multiple NPV (AcMNPV), Bombyx mori NPV (BmNPV), Hyphantria cunea MNPV (HycuMNPV), Spodoptera exigua MNPV (SeMNPV), and Lymantria dispar MNPV (LdMNPV), representing viruses that had been isolated from insect species belonging to five different families (Saturniidae, Noctuidae, Bombycidae, Arctiidae, and Lymantriidae). We found that AnPe cells supported productive replication of AnpeNPV, AcMNPV, BmNPV, HycuMNPV, and SeMNPV to varying degrees. Upon infection with SeMNPV, a subset of AnPe cell population in the culture underwent apoptosis, while remaining cells produced limited amounts of progeny virions and polyhedra. AnPe cells were refractory to LdMNPV infection and failed to support replication of viral DNA, indicating that viral replication was restricted at or prior to the step of viral DNA replication. These results indicated that AnPe cells have the potential to provide excellent systems for studying the molecular mechanisms underlying cellular permissiveness for NPV replication and host-range determination of NPVs.
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Increased Serum Levels of Activated Caspases in Murine and Human Biliary Atresia. J Clin Med 2021; 10:jcm10122718. [PMID: 34205476 PMCID: PMC8234421 DOI: 10.3390/jcm10122718] [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: 04/17/2021] [Revised: 06/05/2021] [Accepted: 06/18/2021] [Indexed: 11/17/2022] Open
Abstract
In biliary atresia (BA), apoptosis is part of the pathomechanism, which results in progressive liver fibrosis. There is increasing evidence suggesting that apoptotic liver injury can be non-invasively detected by measuring the caspase activity in the serum. The purpose of this study was to investigate whether serological detection of caspase activation mirrors apoptotic liver injury in the infective murine BA-model and represents a suitable biomarker for BA in humans. Analysis showed increased caspase-3 activity and apoptosis in the livers of cholestatic BALB/c mice, which correlated significantly with caspase activation in the serum. We then investigated caspase activation and apoptosis in liver tissues and sera from 26 BA patients, 23 age-matched healthy and 11 cholestatic newborns, due to other hepatopathies. Compared to healthy individuals, increased caspase activation in the liver samples of BA patients was present. Moreover, caspase-3 activity was significantly higher in sera from BA infants compared to patients with other cholestatic diseases (sensitivity 85%, specificity 91%). In conclusion, caspase activation and hepatocyte apoptosis play an important role in experimental and human BA. We demonstrated that serological detection of caspase activation represents a reliable non-invasive biomarker for monitoring disease activity in neonatal cholestatic liver diseases including BA.
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Abramyan J, Geetha-Loganathan P, Šulcová M, Buchtová M. Role of Cell Death in Cellular Processes During Odontogenesis. Front Cell Dev Biol 2021; 9:671475. [PMID: 34222243 PMCID: PMC8250436 DOI: 10.3389/fcell.2021.671475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/24/2021] [Indexed: 01/20/2023] Open
Abstract
The development of a tooth germ in a precise size, shape, and position in the jaw, involves meticulous regulation of cell proliferation and cell death. Apoptosis, as the most common type of programmed cell death during embryonic development, plays a number of key roles during odontogenesis, ranging from the budding of the oral epithelium during tooth initiation, to later tooth germ morphogenesis and removal of enamel knot signaling center. Here, we summarize recent knowledge about the distribution and function of apoptotic cells during odontogenesis in several vertebrate lineages, with a special focus on amniotes (mammals and reptiles). We discuss the regulatory roles that apoptosis plays on various cellular processes during odontogenesis. We also review apoptosis-associated molecular signaling during tooth development, including its relationship with the autophagic pathway. Lastly, we cover apoptotic pathway disruption, and alterations in apoptotic cell distribution in transgenic mouse models. These studies foster a deeper understanding how apoptotic cells affect cellular processes during normal odontogenesis, and how they contribute to dental disorders, which could lead to new avenues of treatment in the future.
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Affiliation(s)
- John Abramyan
- Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, MI, United States
| | | | - Marie Šulcová
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
- Laboratory of Molecular Morphogenesis, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czechia
| | - Marcela Buchtová
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
- Laboratory of Molecular Morphogenesis, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, Czechia
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Dulay RM, Valdez BC, Li Y, Chakrabarti S, Dhillon B, Kalaw SP, Reyes RG, Cabrera EC. Cytotoxicity of Gymnopilus purpureosquamulosus extracts on hematologic malignant cells through activation of the SAPK/JNK signaling pathway. PLoS One 2021; 16:e0252541. [PMID: 34048499 PMCID: PMC8162692 DOI: 10.1371/journal.pone.0252541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 05/17/2021] [Indexed: 11/29/2022] Open
Abstract
Treatment of hematologic malignancies is a formidable challenge for hematologists and there is an urgent need to identify safe and efficacious agents either via synthesis in the laboratory or isolation from natural products. Here, we report the cytotoxicity of extracts from mushroom Gymnopilus purpureosquamulosus Høil (G. pps) and describe its molecular mechanisms. Using leukemia, lymphoma and multiple myeloma cell lines, 28-35 ppm G. pps extract inhibited cell proliferation by ~46-79%, which correlates with activation of apoptosis as indicated by increase in annexin V-positive cells (~5-8-fold), production of reactive oxygen species (~2-3-fold), cells in sub G0/G1 phase (~3-13-fold), caspase 3 enzymatic activity (~1.6-2.9-fold), DNA fragmentation, PARP1 cleavage and down-regulation of prosurvival proteins. Mitochondrial membrane potential decreased and leakage of pro-apoptotic factors to cytoplasm was observed, consistent with the activation of intrinsic apoptosis. Western blot analysis showed activation of the ASK1-MEK-SAPK/JNK and ASK1-P38 MAPK pathways possibly due to changes in the cellular redox status as suggested by decreased protein levels of peroxiredoxin, thioredoxin and thioredoxin reductase. Moreover, antioxidant N-acetylcysteine alleviated the cytotoxicity of G. pps. Pharmacological inhibition of SAPK/JNK and P38 alleviated the G. pps-mediated cytotoxicity. The extract activated apoptosis in leukemia and lymphoma patient cell samples but not in mononuclear cells from healthy donors further supporting the therapeutic values of G. pps for hematologic malignancies.
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Affiliation(s)
- Rich Milton Dulay
- Center for Tropical Mushroom Research and Development, Department of Biological Sciences, College of Science, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines
- Department of Biology, College of Science, De La Salle University, Manila, Philippines
| | - Benigno C. Valdez
- Department of Stem Cell Transplantation and Cellular Therapy, UT MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Yang Li
- Department of Stem Cell Transplantation and Cellular Therapy, UT MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Seemanti Chakrabarti
- Department of Plant Pathology, University of Florida, Ft. Lauderdale Research and Education Center, Davie, Florida, United States of America
| | - Braham Dhillon
- Department of Plant Pathology, University of Florida, Ft. Lauderdale Research and Education Center, Davie, Florida, United States of America
| | - Sofronio P. Kalaw
- Center for Tropical Mushroom Research and Development, Department of Biological Sciences, College of Science, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines
| | - Renato G. Reyes
- Center for Tropical Mushroom Research and Development, Department of Biological Sciences, College of Science, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines
| | - Esperanza C. Cabrera
- Department of Biology, College of Science, De La Salle University, Manila, Philippines
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Silencing of Mcl-1 overcomes resistance of melanoma cells against TRAIL-armed oncolytic adenovirus by enhancement of apoptosis. J Mol Med (Berl) 2021; 99:1279-1291. [PMID: 34028599 PMCID: PMC8367928 DOI: 10.1007/s00109-021-02081-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 04/01/2021] [Accepted: 04/20/2021] [Indexed: 12/12/2022]
Abstract
Abstract Arming of oncolytic viruses with tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been shown as a viable approach to increase the antitumor efficacy in melanoma. However, melanoma cells may be partially or completely resistant to TRAIL or develop TRAIL resistance, thus counteracting the antitumor efficiency of TRAIL-armed oncolytic viruses. Recently, we found that TRAIL resistance in melanoma cells can be overcome by inhibition of antiapoptotic Bcl-2 protein myeloid cell leukemia 1 (Mcl-1). Here, we investigated whether the cytotoxicity of AdV-TRAIL, an oncolytic adenovirus, which expresses TRAIL after induction by doxycycline (Dox), can be improved in melanoma cells by silencing of Mcl-1. Two melanoma cell lines, the TRAIL-resistant MeWo and the TRAIL-sensitive Mel-HO were investigated. Treatment of both cell lines with AdV-TRAIL resulted in a decrease of cell viability, which was caused by an increase of apoptosis and necrosis. The proapoptotic effects were dependent on induction of TRAIL by Dox and were more pronounced in Mel-HO than in MeWo cells. SiRNA-mediated silencing of Mcl-1 resulted in a further significant decrease of cell viability and a further increase of apoptosis and necrosis in AdV-TRAIL-infected MeWo and Mel-HO cells. However, while in absolute terms, the effects were more pronounced in Mel-HO cells, in relative terms, they were stronger in MeWo cells. These results show that silencing of Mcl-1 represents a suitable approach to increase the cytotoxicity of a TRAIL-armed oncolytic adenovirus in melanoma cells. Key messages • Cytotoxicity of TRAIL-expressing adenovirus can be enhanced by silencing of Mcl-1. • The effect occurs in TRAIL-sensitive and TRAIL-resistant melanoma cells. • Increase of apoptosis is the main mechanism induced by Mcl-1 silencing. Supplementary Information The online version contains supplementary material available at 10.1007/s00109-021-02081-3.
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Vitrification yields higher cryo-survival rate than slow freezing in biopsied bovine in vitro produced blastocysts. Theriogenology 2021; 171:44-54. [PMID: 34023618 DOI: 10.1016/j.theriogenology.2021.04.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 01/15/2023]
Abstract
Vitrification and slow freezing are the two commonly used embryo cryopreservation methods. In most studies, vitrification of intact embryos has proven superior in several respects, including cell and embryo survival and pregnancy rate. However, there is a lack of data for comparing these two methods in in vitro produced (IVP) bovine blastocysts, which have been subjected to the retrieval of trophectoderm (TE) biopsy. Day 7 IVP blastocysts were pooled and randomized into four groups: 1) non-biopsy (NB), 2) biopsy (B), 3) biopsy-vitrification (BV), 4) biopsy-slow freeze (BSF). The blastocysts in the B, BV, and BSF groups were subjected to TE biopsy. For the B group, this was followed by 5 hours (h) incubation and subsequent scoring of the biopsy-survival (re-expansion) rate before processing for further analyses. For the BV and BSF groups, the biopsy procedure was followed by 2 h incubation, allowing for a quick re-expansion, after which the blastocysts were subjected to vitrification and slow freezing, respectively. After warming and thawing, respectively, they were then incubated for 5 h followed by scoring the cryo-survival (re-expansion) rates before processing for further analyses. These included quantification of ICM and TE cells, cleaved caspase-3- and TUNEL-positive cells, quantitative PCR on cellular stress markers (SOD1 and PRDX1), and ultrastructural analysis. The biopsy-survival rate in the B group was 94% (307/326). The cryo-survival rate in BV (86%, 138/161) was higher than that in BSF (57%, 81/142; P < 0.001). No differences were noted between the average ICM, TE, and total cell numbers of the groups. The percentages of cleaved caspase-3-positive cells were higher in BV vs. NB (P < 0.05), in BSF vs. NB (P < 0.001), and in BSF vs. B (P < 0.001). The percentages of TUNEL-positive cells were higher in BV vs. NB (P < 0.05) and in BSF vs. NB (P < 0.001). The levels of mRNA abundance for SOD1 and PRDX1 in B, BV, and BSF were not different from that in NB. The ultrastructural analysis of blastocysts in the BV and BSF groups showed distension of extracellular spaces and appearance of intracellular vacuoles in the ICM, distension of mitochondria, and disorganization of mitochondrial cristae in both ICM and TE, and weakened tight junctions between adjacent TE cells. In summary, our findings demonstrate that vitrification yields a higher cryo-survival rate than slow freezing in biopsied bovine IVP blastocysts. However, biopsy-vitrification and biopsy-slow-freeze values are comparable in terms of ICM, TE, and total blastocyst cell numbers, as well as cleaved caspase-3- and TUNEL-positive cell rates. Moreover, biopsy and cryopreservation performed alone had no effect on ICM, TE, total blastocyst cell numbers, or TUNEL-positive cell rates. Biopsy and vitrification performed alone had no effect on the cleaved caspase-3 positive cell rates, whereas slow freezing resulted in an increased rate. Furthermore, double traumatization with a combination of biopsy and cryopreservation, either vitrification or slow freezing, resulted in increased rates of cleaved caspase-3- and TUNEL-positive cells.
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Zhao L, Zhu L, Oh YT, Qian G, Chen Z, Sun SY. Rictor, an essential component of mTOR complex 2, undergoes caspase-mediated cleavage during apoptosis induced by multiple stimuli. Apoptosis 2021; 26:338-347. [PMID: 33905036 DOI: 10.1007/s10495-021-01676-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
Caspase-mediated cleavage of proteins ensures the irreversible commitment of cells to undergo apoptosis, and is thus a hallmark of apoptosis. Rapamycin-insensitive companion of mTOR (rictor) functions primarily as a core and essential component of mTOR complex 2 (mTORC2) to critically regulate cellular homeostasis. However, its role in the regulation of apoptosis is largely unknown. In the current study, we found that rictor was cleaved to generate two small fragments at ~ 50 kD and ~ 130 kD in cells undergoing apoptosis upon treatment with different stimuli such as the death ligand, TRAIL, and the small molecule, AZD9291. This cleavage was abolished when caspases were inhibited and could be reproduced when directly incubating rictor protein and caspase-3 in vitro. Furthermore, the cleavage site of caspase-3 on rictor was mapped at D1244 (VGVD). These findings together robustly demonstrate that rictor is a substrate of caspase-3 and undergoes cleavage during apoptosis. These results add new information for understanding the biology of rictor in the regulation of cell survival and growth.
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Affiliation(s)
- Liqun Zhao
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, 1365-C Clifton Road NE, Atlanta, GA, 30322, USA
| | - Lei Zhu
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, 1365-C Clifton Road NE, Atlanta, GA, 30322, USA.,Research Institute for Pharmaceutical Screening & Evaluation, Wannan Medical College School of Pharmacy and Anhui Province Key Laboratory of Active Biological Macromolecules, Wuhu, Anhui, China
| | - You-Take Oh
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, 1365-C Clifton Road NE, Atlanta, GA, 30322, USA
| | - Guoqing Qian
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, 1365-C Clifton Road NE, Atlanta, GA, 30322, USA
| | - Zhen Chen
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, 1365-C Clifton Road NE, Atlanta, GA, 30322, USA
| | - Shi-Yong Sun
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, 1365-C Clifton Road NE, Atlanta, GA, 30322, USA.
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Sumarni U, Reidel U, Eberle J. Targeting Cutaneous T-Cell Lymphoma Cells by Ingenol Mebutate (PEP005) Correlates with PKCδ Activation, ROS Induction as Well as Downregulation of XIAP and c-FLIP. Cells 2021; 10:cells10050987. [PMID: 33922439 PMCID: PMC8146015 DOI: 10.3390/cells10050987] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 01/25/2023] Open
Abstract
New therapeutic strategies are needed for cutaneous T-cell lymphoma (CTCL), and the plant extract ingenol mebutate (PEP005) may be considered. PEP005 has been approved for actinic keratosis, and proapoptotic activities were described in different cancer cells. Here, we aimed to investigate its efficacy in four CTCL cell lines and its mode of action. While HuT-78 and HH responded with induced apoptosis as well as with loss of cell viability and cell proliferation, MyLa and SeAx remained resistant. Interestingly, both sensitive and resistant cells showed caspase-8 activation and enhanced levels of reactive oxygen species (ROS), while final caspase-3 activation was restricted to sensitive cells. Apoptosis induction was prevented by the caspase inhibitor QVD-Oph as well as by the antioxidant vitamin E. Caspase activation by PEP005 may be explained to some extent by the downregulation of the caspase antagonistic proteins c-FLIP and XIAP in sensitive cells, whereas both proteins were strongly expressed in resistant cells. Finally, PEP005 resulted in the activation of proapoptotic PKCδ, and the PKC inhibitor bisindolylmaleimide I reduced apoptosis, caspase-3 processing and ROS production, as well as restored cell viability. In conclusion, PKCδ appeared as a central player in apoptosis regulation in CTCL cells, also suggesting its therapeutic targeting.
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MESH Headings
- Apoptosis
- CASP8 and FADD-Like Apoptosis Regulating Protein/antagonists & inhibitors
- Cell Cycle
- Cell Movement
- Cell Proliferation
- Diterpenes/pharmacology
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Lymphoma, T-Cell, Cutaneous/drug therapy
- Lymphoma, T-Cell, Cutaneous/genetics
- Lymphoma, T-Cell, Cutaneous/metabolism
- Lymphoma, T-Cell, Cutaneous/pathology
- Protein Kinase C-delta/genetics
- Protein Kinase C-delta/metabolism
- Reactive Oxygen Species/metabolism
- Skin Neoplasms/drug therapy
- Skin Neoplasms/genetics
- Skin Neoplasms/metabolism
- Skin Neoplasms/pathology
- Tumor Cells, Cultured
- X-Linked Inhibitor of Apoptosis Protein/antagonists & inhibitors
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