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Tao R, Liu Z, Zhang Z, Zhang Z. USP3 promotes cisplatin resistance in non-small cell lung cancer cells by suppressing ACOT7-regulated ferroptosis. Anticancer Drugs 2024; 35:483-491. [PMID: 38502867 DOI: 10.1097/cad.0000000000001562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
This study aims to investigate the role and mechanism of ubiquitin-specific protease 3 (USP3) in cisplatin (DDP) in non-small cell lung cancer (NSCLC). USP3 expression in NSCLC cells was detected using reverse transcription quantitative PCR and Western blot. DDP-resistant cells were constructed and cell counting kit-8 assay determined the IC 50 of cells to DDP. USP3 expression was silenced in DDP-resistant cells, followed by detection of cell proliferation by clone formation assay, iron ion contents, ROS, MDA, and GSH levels by kits, GPX4 and ACSL4 protein expressions by Western blot. The binding between USP3 and ACOT7 was analyzed using Co-IP, and the ubiquitination level of ACOT7 was measured. USP3 and ACOT7 were highly expressed in NSCLC cells and further increased in drug-resistant cells. USP3 silencing reduced the IC 50 of cells to DDP and diminished the number of cell clones. Moreover, USP3 silencing suppressed GSH and GPX4 levels, upregulated iron ion contents, ROS, MDA, and ACSL4 levels, and facilitated ferroptosis. Mechanistically, USP3 upregulated ACOT7 protein expression through deubiquitination. ACOT7 overexpression alleviated the promoting effect of USP7 silencing on ferroptosis in NSCLC cells and enhanced DDP resistance. To conclude, USP3 upregulated ACOT7 protein expression through deubiquitination, thereby repressing ferroptosis in NSCLC cells and enhancing DDP resistance.
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Affiliation(s)
- Rancen Tao
- Department of Pulmonary Surgery, Tianjin Cancer Hospital, Tianjin, China
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Rokop ZP, Zhang W, Ghosh N, Biswas N, Das A, Lin J, Sen CK, Kubal C. Exacerbated ischemia-reperfusion injury in fatty livers is mediated by lipid peroxidation stress and ferroptosis. Surgery 2024; 175:1539-1546. [PMID: 38508920 DOI: 10.1016/j.surg.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 01/28/2024] [Accepted: 02/02/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Ischemia-reperfusion injury is a common problem in liver surgery and transplantation. Although ischemia-reperfusion injury is known to be more pronounced in fatty livers, the underlying mechanisms for this difference remain poorly understood. We hypothesized that ferroptosis plays a significant role in fatty liver ischemia-reperfusion injury due to increased lipid peroxidation in the presence of stored iron in the fatty liver. To test this hypothesis, the ferroptosis pathway was evaluated in a murine fatty liver ischemia-reperfusion injury model. METHODS C57BL6 mice were fed with a normal diet or a high fat, high sucrose diet for 12 weeks. At 22 weeks of age, liver ischemia-reperfusion injury was induced through partial (70%) hepatic pedicle clamping for 60 minutes, followed by 24 hours of reperfusion before tissue harvest. Acyl-coenzyme A synthetase long-chain family member 4 and 4-hydroxynonenal were quantified in the liver tissues. In separate experiments, liproxstatin-1 or vehicle control was administered for 7 consecutive days before liver ischemia-reperfusion injury. RESULTS Exacerbated ischemia-reperfusion injury was observed in the livers of high fat, high sucrose diet fed mice. High fat, high sucrose diet + ischemia-reperfusion injury (HDF+IRI) livers had a significantly greater abundance of acyl-coenzyme A synthetase long-chain family member 4 and 4-hydroxynonenal compared with normal diet + ischemia-reperfusion injury (ND+IRI) livers or sham fatty livers, which indicated an increase of ferroptosis. HFD fed animals receiving liproxstatin-1 injections had a significant reduction in serum aspartate transaminase and alanine transaminase after ischemia-reperfusion injury, consistent with attenuation of ischemia-reperfusion injury in the liver. CONCLUSION Ferroptosis plays a significant role in ischemia-reperfusion injury in fatty livers. Inhibiting ferroptotic pathways in the liver may serve as a novel therapeutic strategy to protect the fatty liver in the setting of ischemia-reperfusion injury.
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Affiliation(s)
- Zachary P Rokop
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Wenjun Zhang
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Nandini Ghosh
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN; IU Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN; Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, IN
| | - Nirupam Biswas
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN; IU Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN; Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, IN
| | - Amitava Das
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN; IU Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN; Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, IN
| | - Jingmei Lin
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Chandan K Sen
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN; IU Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN; Indiana Center for Regenerative Medicine and Engineering, Indiana University School of Medicine, Indianapolis, IN. https://twitter.com/ChandanKSen
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Wu D, Zuo Z, Sun X, Li X, Yin F, Yin W. ACSL4 promotes malignant progression of Hepatocellular carcinoma by targeting PAK2 transcription. Biochem Pharmacol 2024; 224:116206. [PMID: 38615921 DOI: 10.1016/j.bcp.2024.116206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 03/10/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Long-chain fatty acyl-Coa ligase 4 (ACSL4) is an important enzyme that converts fatty acids to fatty acyl-Coa esters, there is increasing evidence for its role in carcinogenesis. However, the precise role of ACLS4 in hepatocellular carcinoma (HCC) is not clearly understood. In the present study, we provide evidence that ACSL4 expression was specifically elevated in HCC and is associated with poor clinical outcomes. ACSL4 significantly promotes the growth and metastasis of HCC both in vitro and in vivo. RNA sequencing and functional experiments showed that the effect of ACSL4 on HCC development was heavily dependent on PAK2. ACSL4 expression is well correlated with PAK2 in HCC, and ACSL4 even transcriptionally increased PAK2 gene expression mediated by Sp1. In addition, emodin, a naturally occurring anthraquinone derivative, inhibited HCC cell growth and tumor progression by targeting ACSL4. In summary, ACSL4 plays a novel oncogene in HCC development by regulating PAK2 transcription. Targeting ACSL4 could be useful in drug development and therapy for HCC.
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Affiliation(s)
- Dandan Wu
- College of Life Sciences in Nanjing University (Xianlin Campus), State Key lab of Pharmaceutical Biotechnology (SKLPB), Nanjing University, Nanjing 210046, China
| | - Zongchao Zuo
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Xinning Sun
- College of Life Sciences in Nanjing University (Xianlin Campus), State Key lab of Pharmaceutical Biotechnology (SKLPB), Nanjing University, Nanjing 210046, China
| | - Xin Li
- College of Life Sciences in Nanjing University (Xianlin Campus), State Key lab of Pharmaceutical Biotechnology (SKLPB), Nanjing University, Nanjing 210046, China
| | - Fangzhou Yin
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Wu Yin
- College of Life Sciences in Nanjing University (Xianlin Campus), State Key lab of Pharmaceutical Biotechnology (SKLPB), Nanjing University, Nanjing 210046, China.
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Xu Y, Fu S, Huang Y, Zhou D, Wu Y, Peng J, Kuang M. Genome-wide expression analysis of LACS gene family implies GhLACS25 functional responding to salt stress in cotton. BMC Plant Biol 2024; 24:392. [PMID: 38735932 PMCID: PMC11089787 DOI: 10.1186/s12870-024-05045-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/19/2024] [Indexed: 05/14/2024]
Abstract
BACKGROUND Long-chain acyl-coenzyme A synthetase (LACS) is a type of acylating enzyme with AMP-binding, playing an important role in the growth, development, and stress response processes of plants. RESULTS The research team identified different numbers of LACS in four cotton species (Gossypium hirsutum, Gossypium barbadense, Gossypium raimondii, and Gossypium arboreum). By analyzing the structure and evolutionary characteristics of the LACS, the GhLACS were divided into six subgroups, and a chromosome distribution map of the family members was drawn, providing a basis for further research classification and positioning. Promoter cis-acting element analysis showed that most GhLACS contain plant hormones (GA, MeJA) or non-biological stress-related cis-elements. The expression patterns of GhLACS under salt stress treatment were analyzed, and the results showed that GhLACS may significantly participate in salt stress response through different mechanisms. The research team selected 12 GhLACSs responsive to salt stress for tissue expression analysis and found that these genes are expressed in different tissues. CONCLUSIONS There is a certain diversity of LACS among different cotton species. Analysis of promoter cis-acting elements suggests that GhLACS may be involved in regulating plant growth, development and stress response processes. GhLACS25 was selected for in-depth study, which confirmed its significant role in salt stress response through virus-induced gene silencing (VIGS) and induced expression in yeast cells.
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Affiliation(s)
- Yuchen Xu
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Anyang, Henan, 455000, China
- Henan University/State Key Laboratory of Crop Stress Adaptation and Improvement, Kaifeng, Henan, 475004, China
| | - Shouyang Fu
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Anyang, Henan, 455000, China
- Sanya National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, Hainan, 572024, China
| | - Yiwen Huang
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Anyang, Henan, 455000, China
- Sanya National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, Hainan, 572024, China
| | - Dayun Zhou
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Anyang, Henan, 455000, China
| | - Yuzhen Wu
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Anyang, Henan, 455000, China
| | - Jun Peng
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Anyang, Henan, 455000, China.
- Sanya National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, Hainan, 572024, China.
| | - Meng Kuang
- Institute of Cotton Research of Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Anyang, Henan, 455000, China.
- Sanya National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, Hainan, 572024, China.
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Liang P, Xie W, Wang X, Du Z, Zheng C, Zhao H, Wang Z, Ji Z. Ischemia-inhibited ferric chelate reductase 1 improves ferroptosis-mediated intestinal ischemia injury via Hippo signaling. Int Immunopharmacol 2024; 132:111900. [PMID: 38531200 DOI: 10.1016/j.intimp.2024.111900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/08/2024] [Accepted: 03/17/2024] [Indexed: 03/28/2024]
Abstract
The precise mechanism of ferroptosis as a regulatory cell death in intestinal ischemia injury induced by vascular intestinal obstruction (Vio) remains to be elucidated. Here, we evaluated iron levels, glutathione peroxidase 4 (GPX4) and Acyl-CoA synthetase long-chain family member 4 (ACSL4) changes after intestinal ischemia injury to validate ferroptosis. As an enzyme for Fe3+ reduction to Fe2+, Ferric Chelate Reductase 1 (FRRS1) is involved in the electron transport chain and the tricarboxylic acid (TCA) cycle in mitochondria. However, whether it is involved in ferroptosis and its role in intestinal ischemia injury need to be clarified. In the present study, FRRS1 was overexpressed in vivo and in vitro. The results showed that overexpression of FRRS1 prevented ischemia-induced iron levels, reactive oxygen species (ROS) production, lipid peroxidation, inflammatory responses, and cell death. Meanwhile, FRRS1 overexpression promoted GPX4 expression and suppressed ACSL4 levels. Further studies revealed that FRRS1 overexpression inhibited the activity of large tumor suppressor 1 (LATS1) / Yes-associated protein (YAP) / transcriptional co-activator with PDZ-binding motif (TAZ), a key component of Hippo signaling. In conclusion, this study demonstrates that FRRS1 is intimately involved in the inhibition of ferroptosis and thus protection of the intestine from intestinal ischemia injury, its downstream mechanism was related to Hippo signaling. These data provide new sight for the prevention and treatment of intestinal ischemia injury.
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Affiliation(s)
- Pengzhen Liang
- Department of Emergency Surgery, The First Affiliated Hospital of Bengbu Medical University, China; Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical University, China
| | - Wei Xie
- Department of Emergency Surgery, The First Affiliated Hospital of Bengbu Medical University, China; Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical University, China
| | - Xing Wang
- Department of Emergency Surgery, The First Affiliated Hospital of Bengbu Medical University, China; Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical University, China
| | - Zhaohui Du
- Department of Emergency Surgery, The First Affiliated Hospital of Bengbu Medical University, China; Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical University, China
| | - Chuanming Zheng
- Department of Emergency Surgery, The First Affiliated Hospital of Bengbu Medical University, China; Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical University, China
| | - Hongchang Zhao
- Department of Emergency Surgery, The First Affiliated Hospital of Bengbu Medical University, China; Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical University, China
| | - Zhenjie Wang
- Department of Emergency Surgery, The First Affiliated Hospital of Bengbu Medical University, China; Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical University, China
| | - Zhong Ji
- Department of Emergency Surgery, The First Affiliated Hospital of Bengbu Medical University, China; Institute of Emergency and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical University, China.
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Du Y, Shuai Y, Liu Z, Li H, Yin Y. Astaxanthin Synergizes with Ionizing Radiation (IR) in Oral Squamous Cell Carcinoma (OSCC). Mol Biotechnol 2024; 66:1220-1228. [PMID: 38103098 DOI: 10.1007/s12033-023-01024-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Astaxanthin (ATX) is known for its antioxidant and anti-inflammation functions yet its role in cancers requires more research. This study is aimed to reveal the potential synergetic effect of ATX with ionizing radiation (IR) in OSCC. Cell survival was measured after human OSCC cells including CAL27 and SCC9, and normal human oral keratinocytes (NHOKs) were treated with different concentrations of ATX for 24 h. Colony formation assays were performed after OSCC cells were treated with IR, ATX (20 μ M), or combined and survival fraction was analyzed. Malondialdehyde (MDA), glutathione (GSH), and intercellular iron levels were measured. Western blot method was used to measure the ferroptosis-related proteins, GPX4, SLC7A11, and ACSL4. In xenograft mice model, we evaluated the tumor volumes, tumor growth, and examined the GPX4/ACSL4 proteins in tumor tissues using Immunohistochemistry (IHC). ATX inhibited viability of OSCC cells but not NHOK. In OSCC cells, ATX further enhanced the cell death induced by IR. In addition, ATX promoted the MDA content, Iron levels but inhibited the GSH regulated by IR in cells. ATX could synergize with IR, further inhibiting GPX4, SLC7A11 and promoting ACSL4 in OSCC cells. In vivo, ATX and IR treatment inhibited OSCC tumor growth and the group with combined treatment showed the most inhibitory effect. GPX4 was inhibited by IR and further inhibited in the combined group while ACSL4 was promoted by IR and enhanced more significantly in the combined group. ATX might synergize with IR treatment in OSCC partly via ferroptosis.
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Affiliation(s)
- Yuheng Du
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yanjie Shuai
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Zhuang Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Huisheng Li
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Ye Yin
- Department of Stomatology, PLA 983rd Hospital, Tianjin, 300000, China.
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Griffin JD, Zhu Y, Reeves A, Buhman KK, Greenberg AS. Intestinal Acyl-CoA synthetase 5 (ACSL5) deficiency potentiates postprandial GLP-1 & PYY secretion, reduces food intake, and protects against diet-induced obesity. Mol Metab 2024; 83:101918. [PMID: 38499083 PMCID: PMC10990902 DOI: 10.1016/j.molmet.2024.101918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/15/2024] [Accepted: 03/14/2024] [Indexed: 03/20/2024] Open
Abstract
OBJECTIVE In the small intestine, the products of digestion of dietary triacylglycerol (TAG), fatty acids (FA) and monoacylglycerol, are taken up by absorptive cells, enterocytes, for systemic energy delivery. These digestion products can also bind receptors on endocrine cells to stimulate the release of hormones capable of influencing systemic energy metabolism. The initial phase of intestinal FA absorption involves the acylation of FAs to acyl-CoA by the acyl-CoA long chain synthetase (ACSL) enzymes. ACSL5 is abundantly expressed in the small intestinal epithelium where it is the major ACSL isoform, contributing approximately 80% of total ACSL activity. In mice with whole body deficiency of ACSL5, the rate of dietary fat absorption is reduced and energy expenditure is increased. However, the mechanisms by which intestinal ACSL5 contributes to intestinal FA metabolism, enteroendocrine signaling, and regulation of energy expenditure remain undefined. Here, we test the hypothesis that intestinal ACSL5 regulates energy metabolism by influencing dietary fat absorption and enteroendocrine signaling. METHODS To explore the role of intestinal ACSL5 in energy balance and intestinal dietary fat absorption, a novel mouse model of intestine specific ACSL5 deficiency (ACSL5IKO) was generated by breeding ACSL5 floxed (ACSL5loxP/loxP) to mice harboring the tamoxifen inducible, villin-Cre recombinase. ACSL5IKO and control, ACSL5loxP/loxP mice were fed chow (low in fat) or a 60% high fat diet (HFD), and metabolic phenotyping was performed including, body weight, body composition, insulin and glucose tolerance tests, energy expenditure, physical activity, and food intake studies. Pair-feeding studies were performed to determine the role of food intake in regulating development of obesity. Studies of dietary fat absorption, fecal lipid excretion, intestinal mucosal FA content, and circulating levels of glucagon like peptide 1 (GLP-1) and peptide YY (PYY) in response to a TAG challenge were performed. Treatment with a GLP-1 receptor antagonist was performed to determine the contribution of GLP-1 to acute regulation of food intake. RESULTS We found that ACSL5IKO mice experienced rapid and sustained protection from body weight and fat mass accumulation during HFD feeding. While intestine specific deficiency of ACSL5 delayed gastric emptying and reduced dietary fat secretion, it did not result in increased excretion of dietary lipid in feces. Energy expenditure and physical activity were not increased in ACSL5IKO mice. Mice deficient in intestinal ACSL5 display significantly reduced energy intake during HFD, but not chow feeding. When HFD intake of control mice was matched to ACSL5IKO during pair-feeding studies, no differences in body weight or fat mass gain were observed between groups. Postprandial GLP-1 and PYY were significantly elevated in ACSL5IKO mice secondary to increased FA content in the distal small intestine. Blockade of GLP-1 signaling by administration of a long-acting GLP-1 receptor antagonist partially restored HFD intake of ACSL5IKO. CONCLUSIONS These data indicate that intestinal ACSL5 serves as a critical regulator of energy balance, protecting mice from diet-induced obesity exclusively by increasing satiety and reducing food intake during HFD feeding. The reduction in food intake observed in ACSL5IKO mice is driven, in part, by increased postprandial GLP-1 and PYY secretion. These effects are only observed during HFD feeding, suggesting that altered processing of dietary fat following intestinal ACSL5 ablation contributes to GLP-1 and PYY mediated increases in satiety.
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Affiliation(s)
- John D Griffin
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, USA
| | - Ying Zhu
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, USA
| | - Andrew Reeves
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, USA
| | | | - Andrew S Greenberg
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, USA; Tufts University School of Medicine, USA; Friedman School of Nutrition Science and Policy at Tufts University, USA.
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Dos Santos Ferreira MC, Pendleton A, Yeo WS, Málaga Gadea FC, Camelo D, McGuire M, Brinsmade SR. In Staphylococcus aureus, the acyl-CoA synthetase MbcS supports branched-chain fatty acid synthesis from carboxylic acid and aldehyde precursors. Mol Microbiol 2024; 121:865-881. [PMID: 38366323 DOI: 10.1111/mmi.15237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/16/2024] [Accepted: 01/22/2024] [Indexed: 02/18/2024]
Abstract
In the human pathogen Staphylococcus aureus, branched-chain fatty acids (BCFAs) are the most abundant fatty acids in membrane phospholipids. Strains deficient for BCFAs synthesis experience auxotrophy in laboratory culture and attenuated virulence during infection. Furthermore, the membrane of S. aureus is among the main targets for antibiotic therapy. Therefore, determining the mechanisms involved in BCFAs synthesis is critical to manage S. aureus infections. Here, we report that the overexpression of SAUSA300_2542 (annotated to encode an acyl-CoA synthetase) restores BCFAs synthesis in strains lacking the canonical biosynthetic pathway catalyzed by the branched-chain α-keto acid dehydrogenase (BKDH) complex. We demonstrate that the acyl-CoA synthetase activity of MbcS activates branched-chain carboxylic acids (BCCAs), and is required by S. aureus to utilize the isoleucine derivative 2-methylbutyraldehyde to restore BCFAs synthesis in S. aureus. Based on the ability of some staphylococci to convert branched-chain aldehydes into their respective BCCAs and our findings demonstrating that branched-chain aldehydes are in fact BCFAs precursors, we propose that MbcS promotes the scavenging of exogenous BCCAs and mediates BCFA synthesis via a de novo alternative pathway.
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Affiliation(s)
| | - Augustus Pendleton
- Department of Biology, Georgetown University, Washington, District of Columbia, USA
| | - Won-Sik Yeo
- Department of Biology, Georgetown University, Washington, District of Columbia, USA
| | | | - Danna Camelo
- Department of Biology, Georgetown University, Washington, District of Columbia, USA
| | - Maeve McGuire
- Department of Biology, Georgetown University, Washington, District of Columbia, USA
| | - Shaun R Brinsmade
- Department of Biology, Georgetown University, Washington, District of Columbia, USA
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Tao L, Xue YF, Sun FF, He X, Wang HQ, Tong CC, Zhang C, Xu DX, Chen X. MitoQ protects against carbon tetrachloride-induced hepatocyte ferroptosis and acute liver injury by suppressing mtROS-mediated ACSL4 upregulation. Toxicol Appl Pharmacol 2024; 486:116914. [PMID: 38522585 DOI: 10.1016/j.taap.2024.116914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/17/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Ferroptosis has been shown to be involved in carbon tetrachloride (CCl4)-induced acute liver injury (ALI). The mitochondrion-targeted antioxidant MitoQ can eliminate the production of mitochondrial reactive oxygen species (mtROS). This study investigated the role of MitoQ in CCl4-induced hepatocytic ferroptosis and ALI. MDA and 4HNE were elevated in CCl4-induced mice. In vitro, CCl4 exposure elevated the levels of oxidized lipids in HepG2 cells. Alterations in the mitochondrial ultrastructure of hepatocytes were observed in the livers of CCl4-evoked mice. Ferrostatin-1 (Fer-1) attenuated CCl4-induced hepatic lipid peroxidation, mitochondrial ultrastructure alterations and ALI. Mechanistically, acyl-CoA synthetase long-chain family member 4 (ACSL4) was upregulated in CCl4-exposed human hepatocytes and mouse livers. The ACSL4 inhibitor rosiglitazone alleviated CCl4-induced hepatic lipid peroxidation and ALI. ACSL4 knockdown inhibited oxidized lipids in CCl4-exposed human hepatocytes. Moreover, CCl4 exposure decreased the mitochondrial membrane potential and OXPHOS subunit levels and increased the mtROS level in HepG2 cells. Correspondingly, MitoQ pretreatment inhibited the upregulation of ACSL4 in CCl4-evoked mouse livers and HepG2 cells. MitoQ attenuated lipid peroxidation in vivo and in vitro after CCl4 exposure. Finally, MitoQ pretreatment alleviated CCl4-induced hepatocytic ferroptosis and ALI. These findings suggest that MitoQ protects against hepatocyte ferroptosis in CCl4-induced ALI via the mtROS-ACSL4 pathway.
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Affiliation(s)
- Li Tao
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China; Department of Gastroenterology, the Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China; Anhui Provincial Key Laboratory of Digestive Disease, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Yu-Feng Xue
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China; Anhui Provincial Key Laboratory of Digestive Disease, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Fei-Fei Sun
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China; Anhui Provincial Key Laboratory of Digestive Disease, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Xue He
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China; Anhui Provincial Key Laboratory of Digestive Disease, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Hong-Qian Wang
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China; Anhui Provincial Key Laboratory of Digestive Disease, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Cheng-Cheng Tong
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China; Anhui Provincial Key Laboratory of Digestive Disease, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Cheng Zhang
- Department of Toxicology, Anhui Medical University, Hefei, Anhui Province 230032, China
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei, Anhui Province 230032, China.
| | - Xi Chen
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China; Anhui Provincial Key Laboratory of Digestive Disease, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province 230032, China.
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Li Y, Fu W, Xiang J, Ren Y, Li Y, Zhou M, Yu J, Luo Z, Liu E, Fu Z, Liu B, Ding F. Long-chain acyl-CoA synthetase 4-mediated mitochondrial fatty acid metabolism and dendritic cell antigen presentation. Inflamm Res 2024; 73:819-839. [PMID: 38472395 DOI: 10.1007/s00011-024-01868-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
OBJECTIVE This study aims to investigate the role of Acyl-CoA synthetase 4 (ACSL4) in mediating mitochondrial fatty acid metabolism and dendritic cell (DC) antigen presentation in the immune response associated with asthma. METHODS RNA sequencing was employed to identify key genes associated with mitochondrial function and fatty acid metabolism in DCs. ELISA was employed to assess the levels of fatty acid metabolism in DCs. Mitochondrial morphology was evaluated using laser confocal microscopy, structured illumination microscopy, and transmission electron microscopy. Flow cytometry and immunofluorescence were utilized to detect changes in mitochondrial superoxide generation in DCs, followed by immunofluorescence co-localization analysis of ACSL4 and the mitochondrial marker protein COXIV. Subsequently, pathological changes and immune responses in mouse lung tissue were observed. ELISA was conducted to measure the levels of fatty acid metabolism in lung tissue DCs. qRT-PCR and western blotting were employed to respectively assess the expression levels of mitochondrial-associated genes (ATP5F1A, VDAC1, COXIV, TFAM, iNOS) and proteins (ATP5F1A, VDAC1, COXIV, TOMM20, iNOS) in lung tissue DCs. Flow cytometry was utilized to analyze changes in the expression of surface antigens presented by DCs in lung tissue, specifically the MHCII molecule and the co-stimulatory molecules CD80/86. RESULTS The sequencing results reveal that ACSL4 is a crucial gene regulating mitochondrial function and fatty acid metabolism in DCs. Inhibiting ACSL4 reduces the levels of fatty acid oxidases in DCs, increases arachidonic acid levels, and decreases A-CoA synthesis. Simultaneously, ACSL4 inhibition leads to an increase in mitochondrial superoxide production (MitoSOX) in DCs, causing mitochondrial rupture, vacuolization, and sparse mitochondrial cristae. In mice, ACSL4 inhibition exacerbates pulmonary pathological changes and immune responses, reducing the fatty acid metabolism levels within lung tissue DCs and the expression of mitochondria-associated genes and proteins. This inhibition induces an increase in the expression of MHCII antigen presentation molecules and co-stimulatory molecules CD80/86 in DCs. CONCLUSIONS The research findings indicate that ACSL4-mediated mitochondrial fatty acid metabolism and dendritic cell antigen presentation play a crucial regulatory role in the immune response of asthma. This discovery holds promise for enhancing our understanding of the mechanisms underlying asthma pathogenesis and potentially identifying novel targets for its prevention and treatment.
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Affiliation(s)
- Yan Li
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Wenlong Fu
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China
| | - JinYing Xiang
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Yinying Ren
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Yuehan Li
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Mi Zhou
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Jinyue Yu
- Bristol Medical School, University of Bristol, Bristol, UK
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Zhengxiu Luo
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Enmei Liu
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Zhou Fu
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Bo Liu
- Department of Cardiothoracic Surgery, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China.
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China.
| | - Fengxia Ding
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, No. 136, Zhongshan 2 Road, Yuzhong Dis, Chongqing, 400014, People's Republic of China.
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing Medical University, Chongqing, People's Republic of China.
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Wang H, Xu L, Tang X, Jiang Z, Feng X. Lipid peroxidation-induced ferroptosis as a therapeutic target for mitigating neuronal injury and inflammation in sepsis-associated encephalopathy: insights into the hippocampal PEBP-1/15-LOX/GPX4 pathway. Lipids Health Dis 2024; 23:128. [PMID: 38685023 PMCID: PMC11057122 DOI: 10.1186/s12944-024-02116-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 04/21/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Sepsis-associated encephalopathy (SAE) refers to the widespread impairment of brain function caused by noncentral nervous system infection mediated by sepsis. Lipid peroxidation-induced ferroptosis contributes to the occurrence and course of SAE. This study aimed to investigate the relationship between neuronal injury and lipid peroxidation-induced ferroptosis in SAE. METHODS Baseline data were collected from pediatric patients upon admission, and the expression levels of various markers related to lipid peroxidation and ferroptosis were monitored in the serum and peripheral blood mononuclear cells (PBMCs) of patients with SAE as well as SAE model mice. The hippocampal phosphatidylethanolamine-binding protein (PEBP)-1/15-lysine oxidase (LOX)/ glutathione peroxidase 4 (GPX4) pathway was assessed for its role on the inhibitory effect of ferroptosis in SAE treatment. RESULTS The results showed elevated levels of S100 calcium-binding protein beta (S-100β), glial fibrillary acidic protein, and malondialdehyde in the serum of SAE patients, while superoxide dismutase levels were reduced. Furthermore, analysis of PBMCs revealed increased transcription levels of PEBP1, LOX, and long-chain fatty acyl-CoA synthetase family member 4 (ACSL4) in SAE patients, while the transcription levels of GPX4 and cystine/glutamate transporter xCT (SLC7A11) were decreased. In comparison to the control group, the SAE mice exhibited increased expression of S-100β and neuron-specific enolase (NSE) in the hippocampus, whereas the expression of S-100β and NSE were reduced in deferoxamine (DFO) mice. Additionally, iron accumulation was observed in the hippocampus of SAE mice, while the iron ion levels were reduced in the DFO mice. Inhibition of ferroptosis alleviated the mitochondrial damage (as assessed by transmission electron microscopy, hippocampal mitochondrial ATP detection, and the JC-1 polymer-to-monomer ratio in the hippocampus) and the oxidative stress response induced by SAE as well as attenuated neuroinflammatory reactions. Further investigations revealed that the mechanism underlying the inhibitory effect of ferroptosis in SAE treatment is associated with the hippocampal PEBP-1/15-LOX/GPX4 pathway. CONCLUSION These results offer potential therapeutic targets for the management of neuronal injury in SAE and valuable insights into the potential mechanisms of ferroptosis in neurological disorders.
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Affiliation(s)
- Haosen Wang
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, 215003, Jiangsu, China
- Department of Critical Care Medicine, Xuzhou Children's Hospital, Xuzhou, 221002, Jiangsu, China
| | - Lixiao Xu
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, 215003, Jiangsu, China
| | - Xiaojuan Tang
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, 215003, Jiangsu, China
| | - Zhen Jiang
- Department of Critical Care Medicine, Xuzhou Children's Hospital, Xuzhou, 221002, Jiangsu, China
| | - Xing Feng
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, 215003, Jiangsu, China.
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Lai Y, Gao Y, Lin J, Liu F, Yang L, Zhou J, Xue Y, Li Y, Chang Z, Li J, Chao T, Chen J, Cheng X, Gao X, Li X, Lu F, Chu Q, Wang W. Dietary elaidic acid boosts tumoral antigen presentation and cancer immunity via ACSL5. Cell Metab 2024; 36:822-838.e8. [PMID: 38350448 DOI: 10.1016/j.cmet.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 12/12/2023] [Accepted: 01/20/2024] [Indexed: 02/15/2024]
Abstract
Immunomodulatory effects of long-chain fatty acids (LCFAs) and their activating enzyme, acyl-coenzyme A (CoA) synthetase long-chain family (ACSL), in the tumor microenvironment remain largely unknown. Here, we find that ACSL5 functions as an immune-dependent tumor suppressor. ACSL5 expression sensitizes tumors to PD-1 blockade therapy in vivo and the cytotoxicity mediated by CD8+ T cells in vitro via regulation of major histocompatibility complex class I (MHC-I)-mediated antigen presentation. Through screening potential substrates for ACSL5, we further identify that elaidic acid (EA), a trans LCFA that has long been considered harmful to human health, phenocopies to enhance MHC-I expression. EA supplementation can suppress tumor growth and sensitize PD-1 blockade therapy. Clinically, ACSL5 expression is positively associated with improved survival in patients with lung cancer, and plasma EA level is also predictive for immunotherapy efficiency. Our findings provide a foundation for enhancing immunotherapy through either targeting ACSL5 or metabolic reprogramming of antigen presentation via dietary EA supplementation.
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Affiliation(s)
- Yongfeng Lai
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Gao
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Junhong Lin
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China
| | - Fangfang Liu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liguo Yang
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Zhou
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Xue
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Li
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenzhen Chang
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Li
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China
| | - Tengfei Chao
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Cheng
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xianfu Gao
- Shanghai ProfLeader Biotech Co., Ltd, Shanghai, China
| | - Xiong Li
- Department of Gynecology & Obstetrics, the Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fujia Lu
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China.
| | - Qian Chu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Weimin Wang
- Department of Immunology, School of Basic Medicine, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan, China; Key Laboratory of Organ Transplantation, Ministry of Education, NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China; Cell Architecture Research Institute, Huazhong University of Science and Technology, Wuhan, China.
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13
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Zhao J, Wang Q, Liu Z, Zhang M, Li J, Fu ZF, Zhao L, Zhou M. Neuroinvasive virus facilitates viral replication by employing lipid droplets to reduce arachidonic acid-induced ferroptosis. J Biol Chem 2024; 300:107168. [PMID: 38490434 PMCID: PMC10999822 DOI: 10.1016/j.jbc.2024.107168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/03/2024] [Accepted: 03/06/2024] [Indexed: 03/17/2024] Open
Abstract
Lipids have been previously implicated in the lifecycle of neuroinvasive viruses. However, the role of lipids in programmed cell death and the relationship between programmed cell death and lipid droplets (LDs) in neuroinvasive virus infection remains unclear. Here, we found that the infection of neuroinvasive virus, such as rabies virus and encephalomyocarditis virus could enhance the LD formation in N2a cells, and decreasing LDs production by targeting diacylglycerol acyltransferase could suppress viral replication. The lipidomics analysis revealed that arachidonic acid (AA) was significantly increased after reducing LD formation by restricting diacylglycerol acyltransferase, and AA was further demonstrated to induce ferroptosis to inhibit neuroinvasive virus replication. Moreover, lipid peroxidation and viral replication inhibition could be significantly alleviated by a ferroptosis inhibitor, ferrostatin-1, indicating that AA affected neuroinvasive virus replication mainly through inducing ferroptosis. Furthermore, AA was demonstrated to activate the acyl-CoA synthetase long-chain family member 4-lysophosphatidylcholine acyltransferase 3-cytochrome P450 oxidoreductase axis to induce ferroptosis. Our findings highlight novel cross-talks among viral infection, LDs, and ferroptosis for the first time, providing a potential target for antiviral drug development.
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Affiliation(s)
- Jianqing Zhao
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China; Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan, China
| | - Qianruo Wang
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University Wuhan, China
| | - Zhenkun Liu
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China; Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan, China
| | - Mai Zhang
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China; Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan, China
| | - Jinquan Li
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University Wuhan, China
| | - Zhen F Fu
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China; Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan, China
| | - Ling Zhao
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China; Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan, China; Hubei Hongshan Laboratory, Wuhan, China.
| | - Ming Zhou
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Preventive Veterinary Medicine of Hubei Province, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China; Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan, China.
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Toshida K, Itoh S, Iseda N, Tomiyama T, Yoshiya S, Toshima T, Liu YC, Iwasaki T, Okuzaki D, Taniguchi K, Oda Y, Mori M, Yoshizumi T. Impact of ACSL4 on the prognosis of hepatocellular carcinoma: Association with cancer-associated fibroblasts and the tumour immune microenvironment. Liver Int 2024; 44:1011-1023. [PMID: 38293713 DOI: 10.1111/liv.15839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/05/2023] [Accepted: 01/03/2024] [Indexed: 02/01/2024]
Abstract
BACKGROUND & AIMS Recently, the association between hepatocellular carcinoma (HCC) and ferroptosis has been the focus of much attention. The expression of long chain fatty acyl-CoA ligase 4 (ACSL4), a marker of ferroptosis, in tumour tissue is related to better prognosis in various cancers. In HCC, ACSL4 expression indicates poor prognosis and is related to high malignancy. However, the mechanism remains to be fully understood. METHODS We retrospectively enrolled 358 patients with HCC who had undergone hepatic resection. Immunohistochemistry (IHC) for ACSL4 was performed. Factors associated with ASCL4 expression were investigated by spatial transcriptome analysis, and the relationships were investigated by IHC. The association between ACSL4 and the tumour immune microenvironment was examined in a public dataset and investigated by IHC. RESULTS Patients were divided into ACSL4-positive (n = 72, 20.1%) and ACSL4-negative (n = 286, 79.9%) groups. ACSL4 positivity was significantly correlated with higher α-fetoprotein (p = .0180) and more histological liver fibrosis (p = .0014). In multivariate analysis, ACSL4 positivity was an independent prognostic factor (p < .0001). Spatial transcriptome analysis showed a positive correlation between ACSL4 and cancer-associated fibroblasts; this relationship was confirmed by IHC. Evaluation of a public dataset showed the correlation between ACSL4 and exhausted tumour immune microenvironment; this relationship was also confirmed by IHC. CONCLUSION ACSL4 is a prognostic factor in HCC patients and its expression was associated with cancer-associated fibroblasts and anti-tumour immunity.
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Affiliation(s)
- Katsuya Toshida
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shinji Itoh
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Norifumi Iseda
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takahiro Tomiyama
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shohei Yoshiya
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takeo Toshima
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yu-Chen Liu
- Single Cell Genomics, Human Immunology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Takeshi Iwasaki
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Daisuke Okuzaki
- Single Cell Genomics, Human Immunology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Japan
| | - Koji Taniguchi
- Department of Pathology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masaki Mori
- School of Medicine, Tokai University, Kanagawa, Japan
| | - Tomoharu Yoshizumi
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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15
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Liu J, Liu H, Deng L, Wang T, Li L, Chen Y, Qu L, Zou W. Protective Role of Dioscin against Doxorubicin-Induced Chronic Cardiotoxicity: Insights from Nrf2-GPX4 Axis-Mediated Cardiac Ferroptosis. Biomolecules 2024; 14:422. [PMID: 38672439 PMCID: PMC11047995 DOI: 10.3390/biom14040422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
Recent evidence suggests that ferroptosis, an iron-facilitated cell death with excessive lipid peroxidation, is a critical mechanism underlying doxorubicin (DOX)-induced cardiotoxicity (DIC). Although dioscin has been reported to improve acute DIC, direct evidence is lacking to clarify the role of dioscin in chronic DIC and its potential mechanism in cardiac ferroptosis. In this study, we used chronic DIC rat models and H9c2 cells to investigate the potential of dioscin to mitigate DIC by inhibiting ferroptosis. Our results suggest that dioscin significantly improves chronic DIC-induced cardiac dysfunction. Meanwhile, it significantly inhibited DOX-induced ferroptosis by reducing Fe2+ and lipid peroxidation accumulation, maintaining mitochondrial integrity, increasing glutathione peroxidase 4 (GPX4) expression, and decreasing acyl-CoA synthetase long-chain family 4 (ACSL4) expression. Through transcriptomic analysis and subsequent validation, we found that the anti-ferroptotic effects of dioscin are achieved by regulating the nuclear factor-erythroid 2-related factor 2 (Nrf2)/GPX4 axis and Nrf2 downstream iron metabolism genes. Dioscin further downregulates nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4) and upregulates expression of frataxin (FXN) and ATP-binding cassette B8 (ABCB8) to limit mitochondrial Fe2+ and lipid peroxide accumulation. However, Nrf2 inhibition diminishes the anti-ferroptotic effects of dioscin, leading to decreased GPX4 expression and increased lipid peroxidation. This study is a compelling demonstration that dioscin can effectively reduce DIC by inhibiting ferroptosis, which is dependent on the Nrf2/GPX4 pathway modulation.
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Affiliation(s)
| | | | | | | | | | | | - Liping Qu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (J.L.); (H.L.); (L.D.); (T.W.); (L.L.); (Y.C.)
| | - Wenjun Zou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (J.L.); (H.L.); (L.D.); (T.W.); (L.L.); (Y.C.)
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Meng L, Zhou R, Liang L, Zang X, Lin J, Wang Q, Wang L, Wang W, Li Z, Ren P. 4-Coumarate-CoA ligase (4-CL) enhances flavonoid accumulation, lignin synthesis, and fruiting body formation in Ganoderma lucidum. Gene 2024; 899:148147. [PMID: 38191099 DOI: 10.1016/j.gene.2024.148147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/19/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024]
Abstract
It is now understood that 4-Coumarate-CoA ligases (4-CL) are pivotal in bridging the phenylpropanoid metabolic pathway and the lignin biosynthesis pathway in plants. However, limited information on 4-CL genes and their functions in fungi is available. In this study, we cloned the 4-CL gene (Gl21040) from Ganoderma lucidum, which spans 2178 bp and consists of 10 exons and 9 introns. We also developed RNA interference and overexpression vectors for Gl21040 to investigate its roles in G. lucidum. Our findings indicated that in the Gl21040 interference transformants, 4-CL enzyme activities decreased by 31 %-57 %, flavonoids contents decreased by 10 %-22 %, lignin contents decreased by 20 %-36 % compared to the wild-type (WT) strain. Conversely, in the Gl21040 overexpression transformants, 4-CL enzyme activity increased by 108 %-143 %, flavonoids contents increased by 8 %-37 %, lignin contents improved by 15 %-17 % compared to the WT strain. Furthermore, primordia formation was delayed by approximately 10 days in the Gl21040-interferenced transformants but occurred 3 days earlier in the Gl21040-overexpressed transformants compared to the WT strain. These results underscored the involvement of the Gl21040 gene in flavonoid synthesis, lignin synthesis, and fruiting body formation in G. lucidum.
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Affiliation(s)
- Li Meng
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Ruyue Zhou
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Lidan Liang
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Xizhe Zang
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Jialong Lin
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Qingji Wang
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Li Wang
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Wei Wang
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China.
| | - Zhuang Li
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China.
| | - Pengfei Ren
- State Key Laboratory of Nutrient Use and Management, Shandong Academy of Agricultural Sciences, Jinan 250100, China; Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture and Rural Affairs, Shandong Academy of Agricultural Sciences, Jinan 250100, China.
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17
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Shi X, Pang S, Zhou J, Yan G, Gao R, Wu H, Wang Z, Wei Y, Liu X, Tan W. Bladder-cancer-derived exosomal circRNA_0013936 promotes suppressive immunity by up-regulating fatty acid transporter protein 2 and down-regulating receptor-interacting protein kinase 3 in PMN-MDSCs. Mol Cancer 2024; 23:52. [PMID: 38461272 PMCID: PMC10924381 DOI: 10.1186/s12943-024-01968-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/22/2024] [Indexed: 03/11/2024] Open
Abstract
BACKGROUND Polymorphonuclear myeloid-derived suppressor cells (PMN-MDSCs) is one of the causes of tumor immune tolerance and failure of cancer immunotherapy. Here, we found that bladder cancer (BCa)-derived exosomal circRNA_0013936 could enhance the immunosuppressive activity of PMN-MDSCs by regulating the expression of fatty acid transporter protein 2 (FATP2) and receptor-interacting protein kinase 3 (RIPK3). However, the underlying mechanism remains largely unknown. METHODS BCa-derived exosomes was isolated and used for a series of experiments. RNA sequencing was used to identify the differentially expressed circRNAs. Western blotting, immunohistochemistry, immunofluorescence, qRT-PCR, ELISA and Flow cytometry were performed to reveal the potential mechanism of circRNA_0013936 promoting the immunosuppressive activity of PMN-MDSC. RESULTS CircRNA_0013936 enriched in BCa-derived exosomes could promote the expression of FATP2 and inhibit the expression of RIPK3 in PMN-MDSCs. Mechanistically, circRNA_0013936 promoted the expression of FATP2 and inhibited the expression of RIPK3 expression via sponging miR-320a and miR-301b, which directly targeted JAK2 and CREB1 respectively. Ultimately, circRNA_0013936 significantly inhibited the functions of CD8+ T cells by up-regulating FATP2 through the circRNA_0013936/miR-320a/JAK2 pathway, and down-regulating RIPK3 through the circRNA_0013936/miR-301b/CREB1 pathway in PMN-MDSCs. CONCLUSIONS BCa-derived exosomal circRNA_0013936 promotes suppressive immunity by up-regulating FATP2 through the circRNA_0013936/miR-320a/JAK2 pathway and down-regulating RIPK3 through the circRNA_0013936/miR-301b-3p/CREB1 pathway in PMN-MDSCs. These findings help to find new targets for clinical treatment of human bladder cancer.
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Affiliation(s)
- Xiaojun Shi
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Shiyu Pang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jiawei Zhou
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Guang Yan
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Ruxi Gao
- Southern Medical University, Guangzhou, China
| | - Haowei Wu
- Southern Medical University, Guangzhou, China
| | - Zhou Wang
- Southern Medical University, Guangzhou, China
| | - Yuqing Wei
- Southern Medical University, Guangzhou, China
| | - Xinyu Liu
- Southern Medical University, Guangzhou, China
| | - Wanlong Tan
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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18
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Shen X, Jiang X, Sun X, Yuan Q, Wang J. Identifying and charactering a 4-aminobutyryl-CoA ligase for the production of butyrolactam. J Biotechnol 2024; 382:21-27. [PMID: 38246203 DOI: 10.1016/j.jbiotec.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/13/2024] [Accepted: 01/14/2024] [Indexed: 01/23/2024]
Abstract
Butyrolactam, a crucial four-carbon molecule, serves as building block in synthesis of polyamides. While biosynthesis of butyrolactam from renewable carbon sources offers a more sustainable approach, it has faced challenges in achieving high product titer and yield. Here, an efficient microbial platform for butyrolactam production was constructed by elimination of rate-limiting step and systematic pathway optimization. Initially, a superior 4-aminobutyryl-CoA ligase was discovered and characterized among six acyl-CoA ligases from different sources, which greatly improved the pathway efficiency. Subsequent optimizations were implemented to further enhance butyrolactam production, including promoter engineering, the elimination of competing pathways, transporter engineering and improving the availability of precursors. There efforts resulted in achieving approximately 2 g/L butyrolactam in shake flask experiments. Finally, the biosynthesis of butyrolactam was scaled up in a 3-L bioreactor in 84 hours, resulting in a significantly increased production of 45.2 g/L, with a carbon yield of 0.34 g/g glucose. This study highlights the construction of a microbial platform with the capability to achieve elevated levels of butyrolactam production and unlocks its potential in sustainable manufacturing processes.
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Affiliation(s)
- Xiaolin Shen
- College of life science and biotechnology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaotian Jiang
- College of life science and biotechnology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinxiao Sun
- College of life science and biotechnology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qipeng Yuan
- College of life science and biotechnology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jia Wang
- College of life science and biotechnology, Beijing University of Chemical Technology, Beijing 100029, China.
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19
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Zhou Y, Li Y, Chen G, Guo X, Gao X, Meng J, Xu Y, Zhou N, Zhang B, Zhou X. ACSL1-Mediated Fatty Acid β-Oxidation Enhances Metastasis and Proliferation in Endometrial Cancer. FRONT BIOSCI-LANDMRK 2024; 29:66. [PMID: 38420815 DOI: 10.31083/j.fbl2902066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 03/02/2024]
Abstract
BACKGROUND Gynecological malignancies, such as endometrial cancer (EC) and uterine cancer are prevalent. Increased Acyl-CoA synthetase long-chain family member 1 (ACSL1) activity may contribute to aberrant lipid metabolism, which is a potential factor that contributes to the pathogenesis of endometrial cancer. This study aimed to elucidate the potential molecular mechanisms by which ACSL1 is involved in lipid metabolism in endometrial cancer, providing valuable insights for targeted therapeutic strategies. METHODS Xenograft mouse models were used to assess the effect of ACSL1 on the regulation of endometrial cancer progression. ACSL1 protein levels were assessed via immunohistochemistry and immunoblotting analysis. To assess the migratory potential of Ishikawa cells, wound-healing and Transwell invasion assays were performed. Changes in lipids in serum samples from mice with endometrial cancer xenotransplants were examined in an untargeted lipidomic study that combined multivariate statistical methods with liquid chromatography‒mass spectrometry (LC/MS). RESULTS Patient sample and tissue microarray data suggested that higher ACSL1 expression is strongly associated with the malignant progression of EC. Overexpression of ACSL1 enhances fatty acid β-oxidation and 5'-adenylate triphosphate (ATP) generation in EC cells, promoting cell proliferation and migration. Lipidomic analysis revealed that significant changes were induced by ACSL1, including changes to 28 subclasses of lipids and a total of 24,332 distinct lipids that were detected in both positive and negative ion modes. Moreover, pathway analysis revealed the predominant association of these lipid modifications with the AMPK/CPT1C/ATP pathway and fatty acid β-oxidation. CONCLUSIONS This study indicates that ACSL1 regulates the AMPK/CPT1C/ATP pathway, which induces fatty acid β-oxidation, promotes proliferation and migration, and then leads to the malignant progression of EC.
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Affiliation(s)
- Ying Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, College of Pharmacy, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China
| | - Yanyu Li
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, 221009 Xuzhou, Jiangsu, China
| | - Guanfeng Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, College of Pharmacy, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China
| | - Xiaoli Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, College of Pharmacy, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China
| | - Xiao Gao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, College of Pharmacy, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China
| | - Jing Meng
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, College of Pharmacy, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China
| | - Yinxue Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, College of Pharmacy, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China
| | - Nan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, College of Pharmacy, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China
| | - Bei Zhang
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, 221009 Xuzhou, Jiangsu, China
| | - Xueyan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, College of Pharmacy, Xuzhou Medical University, 221004 Xuzhou, Jiangsu, China
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20
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Xiao X, Li R, Cui B, Lv C, Zhang Y, Zheng J, Hui R, Wang Y. Liver ACSM3 deficiency mediates metabolic syndrome via a lauric acid-HNF4α-p38 MAPK axis. EMBO J 2024; 43:507-532. [PMID: 38191811 PMCID: PMC10897460 DOI: 10.1038/s44318-023-00020-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 01/10/2024] Open
Abstract
Metabolic syndrome combines major risk factors for cardiovascular disease, making deeper insight into its pathogenesis important. We here explore the mechanistic basis of metabolic syndrome by recruiting an essential patient cohort and performing extensive gene expression profiling. The mitochondrial fatty acid metabolism enzyme acyl-CoA synthetase medium-chain family member 3 (ACSM3) was identified to be significantly lower expressed in the peripheral blood of metabolic syndrome patients. In line, hepatic ACSM3 expression was decreased in mice with metabolic syndrome. Furthermore, Acsm3 knockout mice showed glucose and lipid metabolic abnormalities, and hepatic accumulation of the ACSM3 fatty acid substrate lauric acid. Acsm3 depletion markedly decreased mitochondrial function and stimulated signaling via the p38 MAPK pathway cascade. Consistently, Acsm3 knockout mouse exhibited abnormal mitochondrial morphology, decreased ATP contents, and enhanced ROS levels in their livers. Mechanistically, Acsm3 deficiency, and lauric acid accumulation activated nuclear receptor Hnf4α-p38 MAPK signaling. In line, the p38 inhibitor Adezmapimod effectively rescued the Acsm3 depletion phenotype. Together, these findings show that disease-associated loss of ACSM3 facilitates mitochondrial dysfunction via a lauric acid-HNF4a-p38 MAPK axis, suggesting a novel therapeutic vulnerability in systemic metabolic dysfunction.
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Affiliation(s)
- Xiao Xiao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ruofei Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bing Cui
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Cheng Lv
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yu Zhang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jun Zheng
- Rizhao Port Hospital, Shandong, China
| | - Rutai Hui
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yibo Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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21
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Chornyi S, Koster J, IJlst L, Waterham HR. Studying the topology of peroxisomal acyl-CoA synthetases using self-assembling split sfGFP. Histochem Cell Biol 2024; 161:133-144. [PMID: 38243092 PMCID: PMC10822792 DOI: 10.1007/s00418-023-02257-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2023] [Indexed: 01/21/2024]
Abstract
Peroxisomes are membrane-bounded organelles that contain enzymes involved in multiple lipid metabolic pathways. Several of these pathways require (re-)activation of fatty acids to coenzyme A (CoA) esters by acyl-CoA synthetases, which may take place inside the peroxisomal lumen or extraperoxisomal. The acyl-CoA synthetases SLC27A2, SLC27A4, ACSL1, and ACSL4 have different but overlapping substrate specificities and were previously reported to be localized in the peroxisomal membrane in addition to other subcellular locations. However, it has remained unclear if the catalytic acyl-CoA synthetase sites of these enzymes are facing the peroxisomal lumen or the cytosolic side of the peroxisomal membrane. To study this topology in cellulo we have developed a microscopy-based method that uses the previously developed self-assembling split superfolder (sf) green fluorescent protein (GFP) assay. We show that this self-assembling split sfGFP method can be used to study the localization as well as the topology of membrane proteins in the peroxisomal membrane, but that it is less suited to study the location of soluble peroxisomal proteins. With the method we could demonstrate that the acyl-CoA synthetase domains of the peroxisome-bound acyl-CoA synthetases SLC27A2 and SLC27A4 are oriented toward the peroxisomal lumen and the domain of ACSL1 toward the cytosol. In contrast to previous reports, ACSL4 was not found in peroxisomes.
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Affiliation(s)
- Serhii Chornyi
- Department of Clinical Chemistry, Laboratory Genetic Metabolic Diseases, Amsterdam UMC-University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands
| | - Janet Koster
- Department of Clinical Chemistry, Laboratory Genetic Metabolic Diseases, Amsterdam UMC-University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Lodewijk IJlst
- Department of Clinical Chemistry, Laboratory Genetic Metabolic Diseases, Amsterdam UMC-University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Hans R Waterham
- Department of Clinical Chemistry, Laboratory Genetic Metabolic Diseases, Amsterdam UMC-University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands.
- Amsterdam Reproduction and Development, Amsterdam, The Netherlands.
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22
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Ji Q, Zhang L, Ye H. Melatonin improves stroke through MDM2-mediated ubiquitination of ACSL4. Aging (Albany NY) 2024; 16:1925-1937. [PMID: 38289595 PMCID: PMC10866433 DOI: 10.18632/aging.205469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/15/2023] [Indexed: 02/06/2024]
Abstract
The objective of this study is to investigate the impact of melatonin on ischemic brain injury and elucidate its underlying molecular mechanism. In this investigation, a mouse model of middle cerebral artery occlusion (MCAO) was established using the thread occlusion method, followed by treatment with two different doses of melatonin: 5 mg/kg and 10 mg/kg. Additionally, HT-22 cells were subjected to oxygen-glucose deprivation/reoxygenation (OGD/R) and treated with varying concentrations of melatonin. The findings demonstrated that melatonin significantly reduced the extent of cerebral ischemia, nerve damage, brain edema, and neuronal apoptosis in MCAO mice. In vitro experiments further revealed that melatonin effectively enhanced cell proliferation while reducing cell apoptosis and reactive oxygen species (ROS) production following OGD/R treatment. Mechanistic investigations unveiled that melatonin exerted its protective effect by inhibiting ferroptosis through modulation of MDM2-mediated ubiquitination of ACSL4. In summary, this study suggests that melatonin regulates the MDM2/ACSL4 pathway to safeguard against ischemic brain injury, thereby providing novel therapeutic targets for such conditions.
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Affiliation(s)
- Qing Ji
- School of Medicine and Health, Anyang Vocational and Technical College, Anyang, Henan 455008, China
| | - Le Zhang
- Department of Pharmacy, Chongqing Yubei District People’s Hospital, Yubei, Chongqing 401120, China
| | - Hui Ye
- Department of Neurosurgery, Yulin Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Yulin, Shaanxi 719000, China
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23
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Wang CH, Surbhi, Goraya S, Byun J, Pennathur S. Fatty acids and inflammatory stimuli induce expression of long-chain acyl-CoA synthetase 1 to promote lipid remodeling in diabetic kidney disease. J Biol Chem 2024; 300:105502. [PMID: 38016515 PMCID: PMC10770716 DOI: 10.1016/j.jbc.2023.105502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 10/30/2023] [Accepted: 11/10/2023] [Indexed: 11/30/2023] Open
Abstract
Fatty acid handling and complex lipid synthesis are altered in the kidney cortex of diabetic patients. We recently showed that inhibition of the renin-angiotensin system without changes in glycemia can reverse diabetic kidney disease (DKD) and restore the lipid metabolic network in the kidney cortex of diabetic (db/db) mice, raising the possibility that lipid remodeling may play a central role in DKD. However, the roles of specific enzymes involved in lipid remodeling in DKD have not been elucidated. In the present study, we used this diabetic mouse model and a proximal tubule epithelial cell line (HK2) to investigate the potential relationship between long-chain acyl-CoA synthetase 1 (ACSL1) and lipid metabolism in response to fatty acid exposure and inflammatory signals. We found ACSL1 expression was significantly increased in the kidney cortex of db/db mice, and exposure to palmitate or tumor necrosis factor-α significantly increased Acsl1 mRNA expression in HK-2 cells. In addition, palmitate treatment significantly increased the levels of long-chain acylcarnitines and fatty acyl CoAs in HK2 cells, and these increases were abolished in HK2 cell lines with specific deletion of Acsl1(Acsl1KO cells), suggesting a key role for ACSL1 in fatty acid β-oxidation. In contrast, tumor necrosis factor-α treatment significantly increased the levels of short-chain acylcarnitines and long-chain fatty acyl CoAs in HK2 cells but not in Acsl1KO cells, consistent with fatty acid channeling to complex lipids. Taken together, our data demonstrate a key role for ACSL1 in regulating lipid metabolism, fatty acid partitioning, and inflammation.
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Affiliation(s)
- Chih-Hong Wang
- Department of Physiology, Tulane University of School Medicine, New Orleans, Louisiana, USA; Tulane Hypertension & Renal Center of Excellence, Tulane University, New Orleans, Louisiana, USA; Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Surbhi
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Sayhaan Goraya
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Jaeman Byun
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Subramaniam Pennathur
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA; Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA.
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24
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Zhang KK, Tan YP, Xu HH, Sun SF, Xiao JC, Xu ZY, Wang CC, Zhu HX, Yang J, Li DY, Tang JF. [Identification and expression analysis of whole gene family of Isatis indigotica 4-coumarate: CoA ligase]. Zhongguo Zhong Yao Za Zhi 2024; 49:361-369. [PMID: 38403312 DOI: 10.19540/j.cnki.cjcmm.20230902.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
The 4-coumarate: CoA ligase(4CL) is a key enzyme in the upstream pathway of phenylpropanoids such as flavonoids, soluble phenolic esters, lignans, and lignins in plants. In this study, 13 4CL family members of Arabidopsis thaliana were used as reference sequences to identify the 4CL gene family candidate members of Isatis indigotica from the reported I. indigotica genome. Further bioinformatics analysis and analysis of the expression pattern of 4CL genes and the accumulation pattern of flavonoids were carried out. Thirteen 4CL genes were obtained, named Ii4CL1-Ii4CL13, which were distributed on chromosomes 1, 2, 3, 4, and 6. The analysis of the gene structure and conserved structural domains revealed the intron number of I. indigotica 4CL genes was between 1 and 12 and the protein structural domains were highly conserved. Cis-acting element analysis showed that there were multiple response elements in the promoter sequence of I. indigotica 4CL gene family, and jasmonic acid had the largest number of reaction elements. The collinearity analysis showed that there was a close relationship between the 4CL gene family members of I. indigotica and A. thaliana. As revealed by qPCR results, the expression analysis of the 4CL gene family showed that 10 4CL genes had higher expression levels in the aboveground part of I. indigotica. The content assay of flavonoids in different parts of I. indigotica showed that flavonoids were mainly accumulated in the aboveground part of plants. This study provides a basis for further investigating the roles of the 4CL gene family involved in the biosynthesis of flavonoids in I. indigotica.
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Affiliation(s)
- Ke-Ke Zhang
- State Key Laboratory for Quality Assurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Yu-Ping Tan
- State Key Laboratory for Quality Assurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Huan-Huan Xu
- Beijing Key Laboratory of Vegetable Germplasm Improvement, Beijing Vegetable Research Center, Beijing Academy of Agricultural and Forestry Sciences Beijing 100097, China
| | - Shu-Fu Sun
- State Key Laboratory for Quality Assurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Jian-Cai Xiao
- State Key Laboratory for Quality Assurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Zhao-Yang Xu
- College of Life Sciences, Shandong Normal University Ji'nan 250014, China
| | - Chen-Chen Wang
- College of Life Sciences, Shandong Normal University Ji'nan 250014, China
| | - Ha-Xiu Zhu
- Beijing Key Laboratory of Vegetable Germplasm Improvement, Beijing Vegetable Research Center, Beijing Academy of Agricultural and Forestry Sciences Beijing 100097, China
| | - Jian Yang
- State Key Laboratory for Quality Assurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Da-Yong Li
- Beijing Key Laboratory of Vegetable Germplasm Improvement, Beijing Vegetable Research Center, Beijing Academy of Agricultural and Forestry Sciences Beijing 100097, China
| | - Jin-Fu Tang
- State Key Laboratory for Quality Assurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
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25
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Wu P, Zhao L, Kong G, Song B. Study on the Role and Mechanism of SLC3A2 in Tumor-Associated Macrophage Polarization and Bladder Cancer Cells Growth. Technol Cancer Res Treat 2024; 23:15330338241246649. [PMID: 38656249 PMCID: PMC11044785 DOI: 10.1177/15330338241246649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/05/2024] [Accepted: 03/18/2024] [Indexed: 04/26/2024] Open
Abstract
Background: Solute carrier family 3 member 2 (SLC3A2) is highly expressed in various types of cancers, including bladder cancer (BLCA). However, the role and mechanism of SLC3A2 in the onset and progression of BLCA are still unclear. Methods: The interfering plasmid for SLC3A2 was constructed and transfected into BLCA cells. Cell proliferation, invasion, and migration abilities were assessed to evaluate the impact of SLC3A2 silencing on BLCA cell growth. M1 and M2 macrophage polarization markers were detected to evaluate macrophage polarization. The levels of reactive oxygen species (ROS), lipid peroxidation, and Fe2+, as well as the expression of ferroptosis-related proteins, were measured to assess the occurrence of ferroptosis. Ferroptosis inhibitors were used to verify the mechanism. Results: The experimental results showed that SLC3A2 was highly expressed in BLCA cell lines. The proliferation, invasion, and migration of BLCA cells were reduced after interfering with SLC3A2. Interference with SLC3A2 led to increase the expression of M1 macrophage markers and decreased the expression of M2 macrophage markers in M0 macrophages co-cultured with tumor cells. Additionally, interference with SLC3A2 led to increased levels of ROS, lipid peroxidation, and Fe2+, downregulated the expression of solute carrier family 7 member11 (SLC7A11) and glutathione peroxidase 4 (GPX4), while upregulated the expression of acyl-coA synthetase long chain family member 4 (ACSL4) and transferrin receptor 1 (TFR1) in BLCA cells. However, the impact of SLC3A2 interference on cell proliferation and macrophage polarization was impeded by ferroptosis inhibitors. Conclusion: Interference with SLC3A2 inhibited the growth of BLCA cells and the polarization of tumor-associated macrophages by promoting ferroptosis in BLCA cells.
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Affiliation(s)
- Peishan Wu
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Lingna Zhao
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Guangqi Kong
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Bo Song
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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Lv J, Yanting W, Wei S. Regulatory roles of ACSL5 in the anti-tumor function of palmitic acid (C16:0) <em>via</em> the ERK signaling pathway. Eur J Histochem 2023; 67. [PMID: 37946526 DOI: 10.4081/ejh.2023.3867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023] Open
Abstract
Previous studies have highlighted the susceptibility of cancer to perturbations in lipid metabolism. In particular, C16:0 has emerged as a promising novel treatment for hepatocellular carcinoma. In our study, we investigated the levels of C16:0 in the serum of non-small lung cancer patients were significant downregulation compared to healthy individuals (n=10; p<0.05). Moreover, our in vitro experiments using A549 cells demonstrated that C16:0 effectively inhibited proliferation, apoptosis, migration, and invasion. Despite these promising results, its pathogenesis remains poorly understood. CCK-8 assay, annexin V-FITC/PI double staining assay, wound healing assay and transwell assay were performed to evaluate the effects of C16:0, on proliferation, apoptosis, migration and invasion of A549 cells. RNA sequencing was used to identify essential factors involved in C16:0-growth inhibition in lung cancer. Further, the expression levels of related gene and proteins were detected by quantitative RT-PCR and Western blotting. Mouse NSCLC subcutaneous xenograft tumor model was established, and gastric lavage was given with C16:0. Tumor volume assay and hematoxylin-eosin staining were used to detect tumor growth in vivo. Our analysis revealed a significant upregulation of ACSL5 and its associated proteins in C16:0-treated A549 cells compared to the control group both in vivo and in vitro. Moreover, the knockdown of ACSL5 reversed the anti-tumor effect, resulting in an increased rate of the malignant phenotype mentioned above. Additionally, the expression of phosphorylated ERK protein was significantly inhibited with increasing concentrations of C16:0 in A549 cells. These results reveal for the first time that C16:0, as a novel target, regulates ACLS5 through the ERK signaling pathway, to inhibit the proliferation and apoptosis and inhibits cell migration and invasion of NSCLC. These findings may lead to the development of a novel therapeutic approach for non-small lung cancer.
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Affiliation(s)
- Jiapei Lv
- The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang.
| | - Wang Yanting
- Ningbo Zhenhai People's Hospital, Ningbo, Zhejiang.
| | - Shan Wei
- The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang.
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Zhao T, Zheng H, Xu JJ, Xu YC, Liu LL, Luo Z. MnO 2 nanoparticles and MnSO 4 differentially affected hepatic lipid metabolism through miR-92a/acsl3-dependent de novo lipogenesis in yellow catfish Pelteobagrusfulvidraco. Environ Pollut 2023; 336:122416. [PMID: 37598932 DOI: 10.1016/j.envpol.2023.122416] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/13/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
With the increasing production and use of MnO2 NPs and MnSO4 in various fields, their discharge into the aquatic environment is inevitable, which poses potential threats to aquatic organisms and humans. However, to date, few studies have been conducted to investigate the potential mechanism of the toxicity of MnO2 NPs, and a comprehensive understanding of the differences between this mechanism and the toxicity mechanism of inorganic Mn (MnSO4) is still lacking. Since lipid metabolism-relevant parameters have been widely recognized as novel biomarkers for risk assessment of environmental contaminants, the present study investigated the differential mechanisms of how MnO2 NPs and MnSO4 affect hepatic lipid metabolism in a freshwater fish yellow catfish. Compared to MnSO4, dietary MnO2 NPs caused liver injury, increased hepatic lipid accumulation and induced lipotoxicity, and up-regulated mRNA expression of de novo lipogenic genes. Moreover, MnO2 NPs downregulated the expression of miR-92a and miR-92b-3p, microRNAs involved in regulation of lipid metabolism, in the liver. Mechanistically, we found that acls3, an acetyl-coenzyme A synthetase, is target gene of miR-92a, and miR-92a-acsl3-dependent de novo lipogenesis contributes to lipid accumulation and lipotoxicity induced by MnO2 NPs. Collectively, these findings provided novel insights into mechanism whereby miRNAs mediate nanoparticles- and inorganic Mn-induced hepatic lipotoxicity and changes of lipid metabolism in vertebrates. Our findings also shed new perspective for ecotoxicity and ecological risk of MnO2 NPs and MnSO4 in aquatic environment.
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Affiliation(s)
- Tao Zhao
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Hua Zheng
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jie-Jie Xu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yi-Chuang Xu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Lu-Lu Liu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhi Luo
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
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Liu Z, Guo X, Zhang W, Wang J, Zhang L, Jing J, Han L, Gao A. Oxidative stress-affected ACSL1 hydroxymethylation triggered benzene hematopoietic toxicity by inflammation and senescence. Food Chem Toxicol 2023; 180:114030. [PMID: 37689099 DOI: 10.1016/j.fct.2023.114030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/02/2023] [Accepted: 09/05/2023] [Indexed: 09/11/2023]
Abstract
Long-term benzene exposure is harmful and causes hematopoietic dysfunction. However, the mechanism of benzene hematopoietic toxicity is still unclear. Acyl-CoA Synthetase Long-Chain Family Member 1 (ACSL1) has been found to participate in the progress of a variety of benign and malignant diseases, but there is no research about its effect on benzene-induced hematopoietic toxicity. Herein, We exposed C57BL/6J mice to benzene to construct an in vivo model. Human peripheral blood mononuclear cells (THP-1 cells) were treated with benzene metabolite 1, 4-BQ to construct an in vitro model. We observed that the ACSL1 expression was upregulated both in vivo and in vitro. Moreover, inhibition of ACSL1 relieved inflammation and senescence development in vitro, suggesting that ACSL1 mediates inflammation and senescence. As for the regulation mechanism of ACSL1 expression, it is closely related to hydroxymethylation modification. This was proved by hydroxymethylated DNA immunoprecipitation (hMeDIP) experiments. Furthermore, oxidative stress influenced the hydroxymethylation process. These results showed that benzene hematopoietic toxicity occurs through the induction of oxidative stress and thus the regulation of ACSL1 hydroxymethylation, which in turn mediates inflammation and senescence. Thus, this study might be of great significance in identifying and preventing benzene exposure in the early stage.
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Affiliation(s)
- Ziyan Liu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Xiaoli Guo
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Wei Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Jingyu Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Lei Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Jiaru Jing
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Lin Han
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Ai Gao
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China.
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Kuroha S, Katada Y, Isobe Y, Uchino H, Shishikura K, Nirasawa T, Tsubota K, Negishi K, Kurihara T, Arita M. Long chain acyl-CoA synthetase 6 facilitates the local distribution of di-docosahexaenoic acid- and ultra-long-chain-PUFA-containing phospholipids in the retina to support normal visual function in mice. FASEB J 2023; 37:e23151. [PMID: 37585289 DOI: 10.1096/fj.202300976r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/18/2023]
Abstract
Docosahexaenoic acid (DHA) and ultra-long-chain polyunsaturated fatty acids (ULC-PUFAs) are uniquely enriched in membrane phospholipids of retinal photoreceptors. Several studies have shown that di-DHA- and ULC-PUFA-containing phospholipids in photoreceptors have an important role in maintaining normal visual function; however, the molecular mechanisms underlying the synthesis and enrichment of these unique lipids in the retina, and their specific roles in retinal function remain unclear. Long-chain acyl-coenzyme A (CoA) synthetase 6 (ACSL6) preferentially converts DHA into DHA-CoA, which is a substrate during DHA-containing lipid biosynthesis. Here, we report that Acsl6 mRNA is expressed in the inner segment of photoreceptor cells and the retinal pigment epithelial cells, and genetic deletion of ACSL6 resulted in the selective depletion of di-DHA- and ULC-PUFA-containing phospholipids, but not mono-DHA-containing phospholipids in the retina. MALDI mass spectrometry imaging (MALDI-MSI) revealed the selective distribution of di-DHA- and ULC-PUFA-containing phospholipids in the photoreceptor outer segment (OS). Electroretinogram of Acsl6-/- mice exhibited photoreceptor cell-derived visual impairment, whereas the expression levels and localization of opsin proteins were unchanged. Acsl6-/- mice exhibited an age-dependent progressive decrease of the thickness of the outer nuclear layers, whereas the inner nuclear layers and OSs were normal. These results demonstrate that ACSL6 facilitates the local enrichment of di-DHA- and ULC-PUFA-containing phospholipids in the retina, which supports normal visual function and retinal homeostasis.
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Affiliation(s)
- Sayoko Kuroha
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Laboratory of Photobiology, Keio University School of Medicine, Tokyo, Japan
| | - Yusaku Katada
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Laboratory of Photobiology, Keio University School of Medicine, Tokyo, Japan
| | - Yosuke Isobe
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan
| | - Haruki Uchino
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan
| | - Kyosuke Shishikura
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan
- Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | | | | | - Kazuno Negishi
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Toshihide Kurihara
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Laboratory of Photobiology, Keio University School of Medicine, Tokyo, Japan
| | - Makoto Arita
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan
- Cellular and Molecular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
- Human Biology-Microbiome-Quantum Research Center (WPI-Bio2Q), Keio University, Tokyo, Japan
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Yang L, Yuan ZH. [Research advances on the role of ACSL3 in the atherosclerosis]. Sheng Li Xue Bao 2023; 75:587-594. [PMID: 37583046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Lipids droplets are organelles that store neutral lipids and are closely related to lipid accumulation. Long chain acyl-coenzyme A synthetase 3 (ACSL3) is a lipid droplet-associated protein mainly distributed in the cell membrane, endoplasmic reticulum, and intracellular lipid droplets, and its distribution depends on cell type and fatty acid supply. ACSL3 is a key regulator of fatty acid metabolism that is closely related to intracellular lipid accumulation, and plays an important role in various pathophysiological processes such as lipid droplet synthesis and lipid metabolism, cellular inflammation, and ferroptosis. This paper mainly reviews the role of ACSL3 in lipid synthesis, ferroptosis, and inflammatory response, with focus on the mechanism of its role in lipid accumulation in atherosclerosis, and provides new ideas for exploring potential therapeutic targets in atherosclerotic diseases.
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Affiliation(s)
- Li Yang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Zhong-Hua Yuan
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang 421001, China.
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Ye W, Wang J, Huang J, He X, Ma Z, Li X, Huang X, Li F, Huang S, Pan J, Jin J, Ling Q, Wang Y, Yu Y, Sun J, Jin J. ACSL5, a prognostic factor in acute myeloid leukemia, modulates the activity of Wnt/β-catenin signaling by palmitoylation modification. Front Med 2023; 17:685-698. [PMID: 37131085 DOI: 10.1007/s11684-022-0942-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 06/06/2022] [Indexed: 05/04/2023]
Abstract
Acyl-CoA synthetase long chain family member 5 (ACSL5), is a member of the acyl-CoA synthetases (ACSs) family that activates long chain fatty acids by catalyzing the synthesis of fatty acyl-CoAs. The dysregulation of ACSL5 has been reported in some cancers, such as glioma and colon cancers. However, little is known about the role of ACSL5 in acute myeloid leukemia (AML). We found that the expression of ACSL5 was higher in bone marrow cells from AML patients compared with that from healthy donors. ACSL5 level could serve as an independent prognostic predictor of the overall survival of AML patients. In AML cells, the ACSL5 knockdown inhibited cell growth both in vitro and in vivo. Mechanistically, the knockdown of ACSL5 suppressed the activation of the Wnt/β-catenin pathway by suppressing the palmitoylation modification of Wnt3a. Additionally, triacsin c, a pan-ACS family inhibitor, inhibited cell growth and robustly induced cell apoptosis when combined with ABT-199, the FDA approved BCL-2 inhibitor for AML therapy. Our results indicate that ACSL5 is a potential prognosis marker for AML and a promising pharmacological target for the treatment of molecularly stratified AML.
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Affiliation(s)
- Wenle Ye
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Jinghan Wang
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Jiansong Huang
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Xiao He
- Research Centre, Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, H2L 4M1, Canada
| | - Zhixin Ma
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China
| | - Xia Li
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Xin Huang
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Fenglin Li
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Shujuan Huang
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Jiajia Pan
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Jingrui Jin
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Qing Ling
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Yungui Wang
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China
| | - Yongping Yu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jie Sun
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China.
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China.
| | - Jie Jin
- Department of Hematology, The First Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310003, China.
- Key Laboratory of Hematopoietic Malignancies, Diagnosis and Treatment, Hangzhou, 310009, China.
- Cancer Center, Zhejiang University, Hangzhou, 310058, China.
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Chen Y, Zhao Y, Deng Y, Yang Y, Xu L, Fu J. FATP2 regulates non-small cell lung cancer by mediating lipid metabolism through ACSL1. Tissue Cell 2023; 82:102105. [PMID: 37172427 DOI: 10.1016/j.tice.2023.102105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023]
Abstract
Lipid metabolism is believed to play an important role in cancer. This study aimed to investigate the role and possible mechanism of fatty acid transporter protein 2 (FATP2) in non-small cell lung cancer (NSCLC). FATP2 expression and its relationship with NSCLC prognosis were analyzed using the TCGA database. The si-RNA was used to intervene FATP2 in NSCLC cells, and the effects of si-FATP2 on cell proliferation, apoptosis, lipid deposition, endoplasmic reticulum (ER) morphology, and the proteins expressions of fatty acid metabolism and ER stress were analyzed. In addition, Co-IP analyzed the interaction between FATP2 and ACSL1, and further analyzed the possible mechanism of FATP2 in regulating lipid metabolism using pcDNA-ACSL1. Results found that FATP2 was overexpressed in NSCLC and associated with poor prognosis. Si-FATP2 significantly inhibited the proliferation and lipid metabolism of A549 and HCC827 cells, and induced ER stress to promote apoptosis. Further studies confirmed the protein interaction between FATP2 and ACSL1. Si-FATP2 and pcDNA-ACSL1 co-transfection further inhibit the proliferation and lipid deposition of NSCLS cells, and promote the decomposition of fatty acids. In conclusion, FATP2 promoted the progression of NSCLC by regulating lipid metabolism through ACSL1.
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Affiliation(s)
- Yinghua Chen
- Department of Oncology and Hematology, Chongqing University Central Hospital, Chongqing 400014, China
| | - Yu Zhao
- Department of Oncology and Hematology, The Ninth People's Hospital of Chongqing 400700, China
| | - Yuan Deng
- Department of Oncology and Hematology, Chongqing University Central Hospital, Chongqing 400014, China
| | - Yan Yang
- Department of Oncology and Hematology, Chongqing University Central Hospital, Chongqing 400014, China
| | - Lijun Xu
- Department of Oncology and Hematology, Chongqing University Central Hospital, Chongqing 400014, China
| | - Jianwei Fu
- Department of Oncology and Hematology, Chongqing University Central Hospital, Chongqing 400014, China.
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Chaudhury D, Torkelson ER, Meyers KA, Acheson JF, Landucci L, Pu Y, Sun Z, Tonelli M, Bingman CA, Smith RA, Karlen SD, Mansfield SD, Ralph J, Fox BG. Rapid Biocatalytic Synthesis of Aromatic Acid CoA Thioesters by Using Microbial Aromatic Acid CoA Ligases. Chembiochem 2023; 24:e202300001. [PMID: 36821718 PMCID: PMC10467583 DOI: 10.1002/cbic.202300001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 02/25/2023]
Abstract
Chemically labile ester linkages can be introduced into lignin by incorporation of monolignol conjugates, which are synthesized in planta by acyltransferases that use a coenzyme A (CoA) thioester donor and a nucleophilic monolignol alcohol acceptor. The presence of these esters facilitates processing and aids in the valorization of renewable biomass feedstocks. However, the effectiveness of this strategy is potentially limited by the low steady-state levels of aromatic acid thioester donors in plants. As part of an effort to overcome this, aromatic acid CoA ligases involved in microbial aromatic degradation were identified and screened against a broad panel of substituted cinnamic and benzoic acids involved in plant lignification. Functional fingerprinting of this ligase library identified four robust, highly active enzymes capable of facile, rapid, and high-yield synthesis of aromatic acid CoA thioesters under mild aqueous reaction conditions mimicking in planta activity.
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Affiliation(s)
- Debayan Chaudhury
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Ella R Torkelson
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Kaya A Meyers
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Justin F Acheson
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Leta Landucci
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Yucen Pu
- Department of Botany and Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
| | - Zimou Sun
- Department of Botany and Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
| | - Marco Tonelli
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Craig A Bingman
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Rebecca A Smith
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Steven D Karlen
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Shawn D Mansfield
- Department of Botany and Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
| | - John Ralph
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
| | - Brian G Fox
- Department of Biochemistry, University of Wisconsin-Madison, 433 Babcock Drive, Madison, WI, 53706, USA
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Fernandez RF, Wilson ES, Diaz V, Martínez-Gardeazabal J, Foguth R, Cannon JR, Jackson SN, Hermann BP, Eells JB, Ellis JM. Lipid metabolism in dopaminergic neurons influences light entrainment. J Neurochem 2023; 165:379-390. [PMID: 36815399 PMCID: PMC10155601 DOI: 10.1111/jnc.15793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 12/20/2022] [Accepted: 02/07/2023] [Indexed: 02/24/2023]
Abstract
Dietary lipids, particularly omega-3 polyunsaturated fatty acids, are speculated to impact behaviors linked to the dopaminergic system, such as movement and control of circadian rhythms. However, the ability to draw a direct link between dopaminergic omega-3 fatty acid metabolism and behavioral outcomes has been limited to the use of diet-based approaches, which are confounded by systemic effects. Here, neuronal lipid metabolism was targeted in a diet-independent manner by manipulation of long-chain acyl-CoA synthetase 6 (ACSL6) expression. ACSL6 performs the initial reaction for cellular fatty acid metabolism and prefers the omega-3 polyunsaturated fatty acid, docosahexaenoic acid (DHA). The loss of Acsl6 in mice (Acsl6-/- ) depletes neuronal membranes of DHA content and results in phenotypes linked to dopaminergic control, such as hyperlocomotion, impaired short-term spatial memory, and imbalances in dopamine neurochemistry. To investigate the role of dopaminergic ACSL6 on these outcomes, a dopaminergic neuron-specific ACSL6 knockout mouse was generated (Acsl6DA-/- ). Acsl6DA-/- mice demonstrated hyperlocomotion and imbalances in striatal dopamine neurochemistry. Circadian rhythms of both the Acsl6-/- and the Acsl6DA-/- mice were similar to control mice under basal conditions. However, upon light entrainment, a mimetic of jet lag, both the complete knockout of ACSL6 and the dopaminergic-neuron-specific loss of ACSL6 resulted in a longer recovery to entrainment compared to control mice. In conclusion, these data demonstrate that ACSL6 in dopaminergic neurons alters dopamine metabolism and regulation of light entrainment suggesting that DHA metabolism mediated by ACSL6 plays a role in dopamine neuron biology.
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Affiliation(s)
- Regina F. Fernandez
- Department of Physiology and East Carolina Diabetes and Obesity institute, Brody School of Medicine at East Carolina University, Greenville, North Carolina, USA
| | - Emily S. Wilson
- Department of Physiology and East Carolina Diabetes and Obesity institute, Brody School of Medicine at East Carolina University, Greenville, North Carolina, USA
| | - Victoria Diaz
- Department of Neuroscience, Developmental and Regenerative Biology, University of Texas San Antonio, San Antonio, Texas, USA
| | | | - Rachel Foguth
- School of Health Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Jason R. Cannon
- School of Health Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Shelley N. Jackson
- National Institute on Drug Abuse, Intramural Research Program, Translational Analytical Core, Baltimore, Maryland, USA
| | - Brian P. Hermann
- Department of Neuroscience, Developmental and Regenerative Biology, University of Texas San Antonio, San Antonio, Texas, USA
| | - Jeffrey B. Eells
- Department of Anatomy and Cell Biology, East Carolina University, Brody School of Medicine, Greenville, North Carolina, USA
| | - Jessica M. Ellis
- Department of Physiology and East Carolina Diabetes and Obesity institute, Brody School of Medicine at East Carolina University, Greenville, North Carolina, USA
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He W, Lin X, Chen K. Specificity protein 1-mediated ACSL4 transcription promoted the osteoarthritis progression through suppressing the ferroptosis of chondrocytes. J Orthop Surg Res 2023; 18:188. [PMID: 36899378 PMCID: PMC10007726 DOI: 10.1186/s13018-023-03673-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/03/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Chondrocytes are the main cell damage type involved in the occurrence and development of osteoarthritis (OA). Ferroptosis has been confirmed to be related to many degenerative diseases. This research aimed to explore the role of Sp1 and ACSL4 in ferroptosis in the IL-1β-treated human chondrocyte cells line (HCCs). METHODS The cell viability was detected with CCK8 assay. The ROS, MDA, GSH, and Fe2+ levels were assessed with corresponding detecting kits. The Col2a1, Acan, Mmp13, Gpx4 and Tfr1 levels were determined by RT-qPCR assay. Western blot was conducted to evaluate the Acsl4 and Sp1 levels. PI staining was carried out to analyze the cell death. The double luciferase report was conducted to verify the interaction between Acsl4 and Sp1. RESULTS The results showed that IL-1β stimulation elevated the LDH release, cell viability, ROS, MDA and Fe2+ levels and declined the GSH levels in the HCCs. Additionally, the mRNA levels of Col2a1, Acan, and Gpx4 were prominently decreased, while Mmp13 and Tfr1 were prominently elevated in the IL-1β stimulated HCCs. Furthermore, Acsl4 protein levels were upregulated in the IL-1β-stimulated HCCs. Both Acsl4 knockdown and ferrostatin-1 treatment neutralized the role of IL-1β in the HCCs. What's more, Acsl4 was transcriptionally regulated by Specificity protein 1 (Sp1). Sp1 overexpression enhanced the Acsl4 levels and Sp1 knockdown declined it. CONCLUSION Upregulation of Sp1 activates Ascl4 transcription and thus mediates the occurrence of ferroptosis. Hence, Acsl4 may be a therapeutic target for intervention of OA.
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Affiliation(s)
- Wen He
- Department of Orthopaedics, Fuzhou Second Hospital, No. 47, Shangteng Road, Cangshan District, Fuzhou City, 350007, Fujian Province, China.
| | - Xuchao Lin
- Department of Orthopaedics, Fuzhou Second Hospital, No. 47, Shangteng Road, Cangshan District, Fuzhou City, 350007, Fujian Province, China
| | - Kangyao Chen
- Department of Orthopaedics, Fuzhou Second Hospital, No. 47, Shangteng Road, Cangshan District, Fuzhou City, 350007, Fujian Province, China
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Chen Y, Li S, Yin M, Li Y, Chen C, Zhang J, Sun K, Kong X, Chen Z, Qian J. Isorhapontigenin Attenuates Cardiac Microvascular Injury in Diabetes via the Inhibition of Mitochondria-Associated Ferroptosis Through PRDX2-MFN2-ACSL4 Pathways. Diabetes 2023; 72:389-404. [PMID: 36367849 DOI: 10.2337/db22-0553] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
Abstract
Ferroptosis is a newly identified form of regulated cell death that is driven by iron overload and uncontrolled lipid peroxidation, but the role of ferroptosis in cardiac microvascular dysfunction remains unclear. Isorhapontigenin (ISO) is an analog of resveratrol and possesses strong antioxidant capacity and cardiovascular-protective effects. Moreover, ISO has been shown to alleviate iron-induced oxidative damage and lipid peroxidation in mitochondria. Therefore, the current study aimed to explore the benefits of ISO treatment on cardiac microvascular dysfunction in diabetes and the possible mechanisms involved, with a focus on ferroptosis and mitochondria. Our data revealed that ISO treatment improved microvascular density and perfusion in db/db mice by mitigating vascular structural damage, normalizing nitric oxide (NO) production via endothelial NO synthase activation, and enhancing angiogenetic ability via vascular endothelial growth factor receptor 2 phosphorylation. PRDX2 was identified as a downstream target of ISO, and endothelial-specific overexpression of PRDX2 exerted effects on the cardiac microvascular function that were similar to those of ISO treatment. In addition, PRDX2 mediated the inhibitive effects of ISO treatment on ferroptosis by suppressing oxidative stress, iron overload, and lipid peroxidation. Further study suggested that mitochondrial dynamics and dysfunction contributed to ferroptosis, and ISO treatment or PRDX2 overexpression attenuated mitochondrial dysfunction via MFN2-dependent mitochondrial dynamics. Moreover, MFN2 overexpression suppressed the mitochondrial translocation of ACSL4, ultimately inhibiting mitochondria-associated ferroptosis. In contrast, enhancing mitochondria-associated ferroptosis via ACSL4 abolished the protective effects of ISO treatment on cardiac microcirculation. Taken together, the results of the present work demonstrated the beneficial effects of ISO treatment on cardiac microvascular protection in diabetes by suppressing mitochondria-associated ferroptosis through PRDX2-MFN2-ACSL4 pathways.
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Affiliation(s)
- Yuqiong Chen
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Su Li
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Ming Yin
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yafei Li
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Chao Chen
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jun Zhang
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Kangyun Sun
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Xiangqing Kong
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhangwei Chen
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Juying Qian
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- National Clinical Research Center for Interventional Medicine, Shanghai, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, China
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Bouchaoui H, Mahoney-Sanchez L, Garçon G, Berdeaux O, Alleman LY, Devos D, Duce JA, Devedjian JC. ACSL4 and the lipoxygenases 15/15B are pivotal for ferroptosis induced by iron and PUFA dyshomeostasis in dopaminergic neurons. Free Radic Biol Med 2023; 195:145-157. [PMID: 36581060 DOI: 10.1016/j.freeradbiomed.2022.12.086] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/13/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
Ferroptosis, an iron-dependent regulated cell death triggered by high lipid peroxide levels, has been implicated in several neurodegenerative diseases, including Parkinson's disease (PD). Brain regions such as the striatum are highly rich in both peroxidation susceptible PUFAs and iron, which accumulate at a greater rate than age in PD. The exact molecular pathways and patho-physiological conditions promoting cell death in the dopaminergic neurons that are particularly susceptible in PD remain elusive. In the current work, we show that modifying the PUFA composition in membranes of dopaminergic neurons using arachidonic acid (AA) can determine ferroptosis susceptibility. Furthermore, cotreatment with iron (Fe), increases AA-containing phospholipid association and synergistically promotes high lipid peroxidation to facilitate ferroptosis. Ex vivo analysis with organotypic brain slices, confirm that AA + Fe induces cell death in the nigrostriatal pathway and can be rescued by the anti-ferroptotic drug Ferrostatin-1. Prevention of ferroptotic AA + Fe induced cell death through inhibition of ACSL4, ALOX15 or ALOX15B provides mechanistic support of this lipid peroxidation pathway being involved in dopaminergic neuronal death and novel potential pharmacological targets for neuroprotective strategies in PD.
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Affiliation(s)
- Hind Bouchaoui
- Department of Medical Pharmacology, Lille University, INSERM UMRS_1172, University Hospital Centre, LICEND COEN Centre, LilNCog - Lille Neuroscience & Cognition, 59000, France; Université de Lille, CHU Lille, Institut Pasteur de Lille, EA4483 IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, Lille, France
| | - Laura Mahoney-Sanchez
- Department of Medical Pharmacology, Lille University, INSERM UMRS_1172, University Hospital Centre, LICEND COEN Centre, LilNCog - Lille Neuroscience & Cognition, 59000, France
| | - Guillaume Garçon
- Université de Lille, CHU Lille, Institut Pasteur de Lille, EA4483 IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, Lille, France
| | - Olivier Berdeaux
- Lipid-Aroma Platform, Centre des Sciences du Goût et de l'Alimentation, UMR6265 CNRS, UMR1324 INRA, Université de Bourgogne, Agrosup Dijon, F-21000 Dijon, France
| | - Laurent Y Alleman
- IMT Lille Douai, Institut Mines-Télécom, Univ. Lille, Centre for Energy and Environment, F-59000 Lille, France
| | - David Devos
- Department of Medical Pharmacology, Lille University, INSERM UMRS_1172, University Hospital Centre, LICEND COEN Centre, LilNCog - Lille Neuroscience & Cognition, 59000, France.
| | - James A Duce
- Melbourne Dementia Research Centre, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, Australia; The ALBORADA Drug Discovery Institute, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK.
| | - Jean-Christophe Devedjian
- Department of Medical Pharmacology, Lille University, INSERM UMRS_1172, University Hospital Centre, LICEND COEN Centre, LilNCog - Lille Neuroscience & Cognition, 59000, France; Université du Litoral Côte d'Opale, 1, Place de l'Yser, Dunkerque Cedex, France
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Temiz MZ, Colakerol A, Sonmez SZ, Gokce A, Canitez IO, Ozsoy S, Kandirali E, Semercioz A, Muslumanoglu AY. Prognostic Role of Long-Chain Acyl-Coenzyme A Synthetase Family Genes in Patients with Clear Cell Renal Cell Carcinoma: A Comprehensive Bioinformatics Analysis Confirmed with External Validation Cohorts. Clin Genitourin Cancer 2023; 21:91-104. [PMID: 36529627 DOI: 10.1016/j.clgc.2022.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 11/25/2022]
Abstract
INTRODUCTION We aimed to determine the prognostic role of long-chain acyl-CoA synthetases (ACSLs) as a disease marker for kidney clear cell carcinoma (KIRC). PATIENTS AND METHODS The Cancer Genome Atlas (TCGA) data were accessed via open access LinkedOmics database for KIRC. Provisional datasets were used for analysis as previously described and gene expression quantification data were downloaded. The corresponding clinical information of patients also were obtained from the database. Five ACSL family members, ACSL1, ACSL3, ACSL4, ACSL5, and ACSL6, were investigated in the TCGA-KIRC cohort. Xena browser, cBioPortal and UALCAN, and Cancer Cell Line Encyclopedia (CCLE) databases were also used to confirm the results. External validation was performed using patient cohorts from the Gene Expression Omnibus (GEO-NCBI) database. Finally, the protein-protein interaction (PPI) was constructed based on the Search Tool for the Retrieval of Interacting Genes (STRING) database and visualized using Cytoscape software. RESULTS Pathological T3-T4 stage tumors had significantly lower ACSL1 mRNA expression (P = .009). Patients with pathologically confirmed metastasis exhibited significantly lower expression, as well (P = .02). ACSL1 mRNA expression was associated with overall survival (OS) and negatively correlated with OS time. Univariate and multivariate analyses showed that lower ACSL1 mRNA expression level was associated with mortality. Moreover, ACSL1 mRNA expression was exhibited significant difference in some VHL gene region mutations and PBRM1_p.R1010 mutation, and negatively correlated with HIF1-alpha mRNA expression (P < .001). Confirmatory analyses and external validation also revealed similar findings. CONCLUSION Lowered ACSL1 mRNA expression is associated with worse tumor histopathology and poor overall survival in KIRC. It may be used for prognostic marker for KIRC.
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Affiliation(s)
- Mustafa Zafer Temiz
- Department of Urology, Bagcilar Training and Research Hospital, Istanbul, Turkey and Department of Molecular Biology and Genetics (PhD Candidate), Istanbul Kultur University, Istanbul, Turkey.
| | - Aykut Colakerol
- Department of Urology, Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Salih Zeki Sonmez
- Department of Urology, Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Adem Gokce
- Department of Urology, Bagcilar Training and Research Hospital, Istanbul, Turkey
| | | | - Sule Ozsoy
- Department of Pathology, Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Engin Kandirali
- Department of Urology, Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Atilla Semercioz
- Department of Urology, Bagcilar Training and Research Hospital, Istanbul, Turkey
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Ran LS, Wu YZ, Gan YW, Wang HL, Wu LJ, Zheng CM, Ming Y, Xiong R, Li YL, Lei SH, Wang X, Lao XQ, Zhang HM, Wang L, Chen C, Zhao CY. Andrographolide ameliorates hepatic steatosis by suppressing FATP2-mediated fatty acid uptake in mice with nonalcoholic fatty liver disease. J Nat Med 2023; 77:73-86. [PMID: 36115008 PMCID: PMC9810587 DOI: 10.1007/s11418-022-01647-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 08/07/2022] [Indexed: 01/12/2023]
Abstract
Excessive intrahepatocellular lipid accumulation or steatosis is caused by abnormal lipid metabolism and a common character of nonalcoholic fatty liver disease (NAFLD), which may progress into cirrhosis and hepatocellular cancer. Andrographolide (Andro) is the primary active ingredient extracted from Andrographis paniculata, showing a protective role against dietary steatosis with the mechanism not fully understood. In this study, we showed that administration of Andro (50, 100, and 200 mg/kg/day for 8 weeks, respectively) attenuated obesity and metabolic syndrome in high-fat diet (HFD)-fed mice with improved glucose tolerance, insulin sensitivity, and reduced hyperinsulinemia, hyperglycemia, and hyperlipidemia. HFD-fed mice presented hepatic steatosis, which was significantly prevented by Andro. In vitro, Andro decreased the intracellular lipid droplets in oleic acid-treated LO2 cells. The selected RT-PCR array revealed a robust expression suppression of the fatty acid transport proteins (FATPs) by Andro treatment. Most importantly, we found that Andro consistently reduced the expression of FATP2 in both the oleic acid-treated LO2 cells and liver tissues of HFD-fed mice. Overexpression of FATP2 abolished the lipid-lowering effect of Andro in oleic acid-treated LO2 cells. Andro treatment also reduced the fatty acid uptake in oleic acid-treated LO2 cells, which was blunted by FATP2 overexpression. Collectively, our findings reveal a novel mechanism underlying the anti-steatosis effect of Andro by suppressing FATP2-mediated fatty acid uptake, suggesting the potential therapeutic application of Andro in the treatment of NAFLD.
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Affiliation(s)
- Li-Sha Ran
- College of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Ya-Zeng Wu
- College of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yi-Wen Gan
- College of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Hong-Lian Wang
- Research Center for Integrative Medicine, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Li-Juan Wu
- Department of Endocrinology, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Chun-Mei Zheng
- Department of Endocrinology, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yao Ming
- Department of Endocrinology, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Ran Xiong
- Department of Endocrinology, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yong-Lin Li
- Department of Endocrinology, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Shi-Hang Lei
- Department of Endocrinology, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Xue Wang
- Department of Endocrinology, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Xiao-Qing Lao
- College of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Hong-Min Zhang
- College of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Li Wang
- Research Center for Integrative Medicine, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Chen Chen
- School of Biomedical Sciences, University of Queensland, St Lucia, Brisbane, 4067, Australia.
| | - Chang-Ying Zhao
- College of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, Sichuan, China.
- Department of Endocrinology, The Affiliated Traditional Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
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Afifi OA, Tobimatsu Y, Lam PY, Martin AF, Miyamoto T, Osakabe Y, Osakabe K, Umezawa T. Genome-edited rice deficient in two 4-COUMARATE:COENZYME A LIGASE genes displays diverse lignin alterations. Plant Physiol 2022; 190:2155-2172. [PMID: 36149320 PMCID: PMC9706450 DOI: 10.1093/plphys/kiac450] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
The 4-coumarate:coenzyme A ligase (4CL) is a key enzyme that contributes to channeling metabolic flux in the cinnamate/monolignol pathway, leading to the production of monolignols, p-hydroxycinnamates, and a flavonoid tricin, the major building blocks of lignin polymer in grass cell walls. Vascular plants often contain multiple 4CL genes; however, the contribution of each 4CL isoform to lignin biosynthesis remains unclear, especially in grasses. In this study, we characterized the functions of two rice (Oryza sativa L.) 4CL isoforms (Os4CL3 and Os4CL4) primarily by analyzing the cell wall chemical structures of rice mutants generated by CRISPR/Cas9-mediated targeted mutagenesis. A series of chemical and nuclear magnetic resonance analyses revealed that loss-of-function of Os4CL3 and Os4CL4 differently altered the composition of lignin polymer units. Loss of function of Os4CL3 induced marked reductions in the major guaiacyl and syringyl lignin units derived from both the conserved non-γ-p-coumaroylated and the grass-specific γ-p-coumaroylated monolignols, with more prominent reductions in guaiacyl units than in syringyl units. In contrast, the loss-of-function mutation to Os4CL4 primarily decreased the abundance of the non-γ-p-coumaroylated guaiacyl units. Loss-of-function of Os4CL4, but not of Os4CL3, reduced the grass-specific lignin-bound tricin units, indicating that Os4CL4 plays a key role not only in monolignol biosynthesis but also in the biosynthesis of tricin used for lignification. Further, the loss-of-function of Os4CL3 and Os4CL4 notably reduced cell-wall-bound ferulates, indicating their roles in cell wall feruloylation. Overall, this study demonstrates the overlapping but divergent roles of 4CL isoforms during the coordinated production of various lignin monomers.
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Affiliation(s)
- Osama Ahmed Afifi
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Kyoto 611-0011, Japan
- Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Kyoto 611-0011, Japan
| | - Pui Ying Lam
- Center for Crossover Education, Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Andri Fadillah Martin
- Research Center for Genetic Engineering, National Research and Innovation Agency (BRIN), Bogor 16911, Indonesia
| | - Takuji Miyamoto
- Sakeology Center, Niigata University, Niigata 950-2181, Japan
| | - Yuriko Osakabe
- School of Life Science and Technology, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Keishi Osakabe
- Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima 770-8506, Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Kyoto 611-0011, Japan
- Research Unit for Realization of Sustainable Society (RURSS), Kyoto University, Kyoto 611-0011, Japan
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Liu S, Gao Z, He W, Wu Y, Liu J, Zhang S, Yan L, Mao S, Shi X, Fan W, Song S. The gut microbiota metabolite glycochenodeoxycholate activates TFR-ACSL4-mediated ferroptosis to promote the development of environmental toxin-linked MAFLD. Free Radic Biol Med 2022; 193:213-226. [PMID: 36265794 DOI: 10.1016/j.freeradbiomed.2022.10.270] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/30/2022] [Accepted: 10/07/2022] [Indexed: 10/31/2022]
Abstract
Metabolic dysfunction-associated fatty liver disease (MAFLD) has become the most common chronic liver disorders in the world, and yet has no approved pharmacotherapy due to the etiology is complex. In the last ten years, increasing evidence have identified the environmental pollutants as risk factors for MAFLD. However, the underlying mechanism remains unclear. Our study found that bromoacetic acid (BAA, a typical kind of environmental toxin) increased triglycerides and total cholesterol levels as well as induced obvious hepatic steatosis and inflammation. The lipidomics showed that ferroptosis was implicated in the environmental toxin-linked MAFLD. Besides, the analysis of microbial metabolomics showed significant change of gut microbiome in BAA groups and the content of gut microbiota metabolite (glycochenodeoxycholate, GCDCA) increased sharply. In vitro study, we observed features of ferroptotic cells by transmission electron microscopy after BAA/GCDCA treatment. Besides, we demonstrated that BAA/GCDCA significantly increased iron contents, with upregulating transferrin receptor (TFR) and acyl-CoA synthetase long-chain family 4 (ACSL4) expression levels. By contrast, iron chelator or silencing TFR relieved BAA/GCDCA-induced lipid metabolism disorder and inflammation. What's more, the interaction between TFR and ACSL4 was also identified. Taken together, we found that, in response to environmental toxin, gut microbiota metabolite GCDCA activates TFR-ACSL4-mediated ferroptosis, which triggered subsequent lipid metabolism disorder and inflammation. Moreover, these findings firstly highlighted the functional relevance among ferroptosis, lipid metabolism and gut microbiota metabolite during environmental pollutant exposure, which shed light on the deep mechanism of environmental toxin-related MAFLD, providing potential targets for the prevention of MAFLD.
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Affiliation(s)
- Shuhui Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhangshan Gao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wanqiu He
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuting Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiwen Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shuo Zhang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Liping Yan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Engineering Laboratory of Animal Immunology, Institute of Immunology and College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shengyong Mao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xizhi Shi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, 315211, China
| | - Wentao Fan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Suquan Song
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Engineering Laboratory of Animal Immunology, Institute of Immunology and College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China.
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Guo M, Hou J, Li C, Qu L, Huang R, Liu J, Ge Y. Acibenzolar-S-methyl activates calcium signalling to mediate lignin synthesis in the exocarp of Docteur Jules Guyot pears. Plant Physiol Biochem 2022; 190:174-183. [PMID: 36116226 DOI: 10.1016/j.plaphy.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 08/24/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
'Docteur Jules Guyot' pears were immersed in acibenzolar-S-methyl (ASM) and 0.01 mol L-1 ethyl glycol tetra acetic acid (EGTA) to investigate the changes of Ca2+ receptor proteins and phenylpropanoid pathway. Results showed that ASM treatment increased the activities of phenylalanine ammonia-lyase (PAL), cinnamate-4-hydroxylase (C4H), 4-coumarate coenzyme A ligase (4CL), polyphenol oxidase (PPO), and cinnamyl alcohol dehydrogenase (CAD) in the exocarp of pears, whereas EGTA pre-treatment inhibited the activities of these enzymes. ASM treatment also enhanced the transcription of PcPAL, PcC4H, Pc4CL, PcC3H, PcCOMT, PcCCoAOMT, PcCCR, PcPOD, PcCDPK1, PcCDPK2, PcCDPK5, PcCDPK11, PcCDPK13, PcCBL1, PcCBL9, PcCIPK14, and PcCML27 in pears. EGTA + ASM treatments inhibited the transcription of PcPAL, PcC4H, Pc4CL, PcC3H, PcCCR, PcF5H, PcCAD, PcCDPK11, PcCDPK26, PcCDPK32, PcCBL1, PcCIPK14, PcCIPK23, and PcCaM in the fruit. All these results indicated that ASM induced the gene expressions of Ca2+ receptor proteins, the key enzyme activities and gene expressions in phenylpropanoid pathway; Ca2+ mediated phenylpropane metabolism in pears after ASM treatment.
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Affiliation(s)
- Mi Guo
- College of Food Science and Engineering, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Jiabao Hou
- College of Food Science and Engineering, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Canying Li
- College of Food Science and Engineering, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China.
| | - Linhong Qu
- College of Food Science and Engineering, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Rui Huang
- College of Food Science and Engineering, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Jiaxin Liu
- College of Food Science and Engineering, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Yonghong Ge
- College of Food Science and Engineering, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China.
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Ni R, Niu M, Fu J, Tan H, Zhu TT, Zhang J, Lou HX, Zhang P, Li JX, Cheng AX. Molecular and structural characterization of a promiscuous chalcone synthase from the fern species Stenoloma chusanum. J Integr Plant Biol 2022; 64:1935-1951. [PMID: 35920566 DOI: 10.1111/jipb.13335] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
The key enzymes involved in the flavonoid biosynthesis pathway have been extensively studied in seed plants, but relatively less in ferns. In this study, two 4-Coumarate: coenzyme A ligases (Sc4CL1 and Sc4CL2) and one novel chalcone synthase (ScCHS1) were functionally characterized by mining the Stenoloma chusanum transcriptome database. Recombinant Sc4CLs were able to esterify various hydroxycinnamic acids to corresponding acyl-coenzyme A (CoA). ScCHS1 could catalyze p-coumaroyl-CoA, cinnamoyl-CoA, caffeoyl-CoA, and feruloyl-CoA to form naringenin, pinocembrin, eriodictyol, and homoeriodictyol, respectively. Moreover, enzymatic kinetics studies revealed that the optimal substrates of ScCHS1 were feruloyl-CoA and caffeoyl-CoA, rather than p-coumaroyl-CoA, which was substantially different from the common CHSs. Crystallographic and site-directed mutagenesis experiments indicated that the amino acid residues, Leu87, Leu97, Met165, and Ile200, located in the substrate-binding pocket near the B-ring of products, could exert a significant impact on the unique catalytic activity of ScCHS1. Furthermore, overexpression of ScCHS1 in tt4 mutants could partially rescue the mutant phenotypes. Finally, ScCHS1 and Sc4CL1 were used to synthesize flavanones and flavones with multi-substituted hydroxyl and methoxyl B-ring in Escherichia coli, which can effectively eliminate the need for the cytochrome P450 hydroxylation/O-methyltransferase from simple phenylpropanoid acids. In summary, the identification of these important Stenoloma enzymes provides a springboard for the future production of various flavonoids in E. coli.
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Affiliation(s)
- Rong Ni
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, China
| | - Meng Niu
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, China
| | - Jie Fu
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, China
| | - Hui Tan
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, China
| | - Ting-Ting Zhu
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, China
| | - Jing Zhang
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, China
| | - Hong-Xiang Lou
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, China
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Jian-Xu Li
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Ai-Xia Cheng
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, China
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Lee H, Gan B. Ferroptosis execution: Is it all about ACSL4? Cell Chem Biol 2022; 29:1363-1365. [PMID: 36113403 DOI: 10.1016/j.chembiol.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ACSL4 is generally considered to be universally required for ferroptosis, a form of cell death induced by phospholipid peroxidation. In this issue of Cell Chemical Biology, Magtanong et al. (2022) report the surprising finding that ACSL4 is only required for ferroptosis in certain circumstances, raising interesting questions about the regulation of this cell death pathway.
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Affiliation(s)
- Hyemin Lee
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Boyi Gan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; The University of Texas MD Anderson UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA.
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Magtanong L, Mueller GD, Williams KJ, Billmann M, Chan K, Armenta DA, Pope LE, Moffat J, Boone C, Myers CL, Olzmann JA, Bensinger SJ, Dixon SJ. Context-dependent regulation of ferroptosis sensitivity. Cell Chem Biol 2022; 29:1409-1418.e6. [PMID: 35809566 PMCID: PMC9481678 DOI: 10.1016/j.chembiol.2022.06.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 04/11/2022] [Accepted: 06/15/2022] [Indexed: 02/08/2023]
Abstract
Ferroptosis is an important mediator of pathophysiological cell death and an emerging target for cancer therapy. Whether ferroptosis sensitivity is governed by a single regulatory mechanism is unclear. Here, based on the integration of 24 published chemical genetic screens combined with targeted follow-up experimentation, we find that the genetic regulation of ferroptosis sensitivity is highly variable and context-dependent. For example, the lipid metabolic gene acyl-coenzyme A (CoA) synthetase long chain family member 4 (ACSL4) appears far more essential for ferroptosis triggered by direct inhibition of the lipid hydroperoxidase glutathione peroxidase 4 (GPX4) than by cystine deprivation. Despite this, distinct pro-ferroptotic stimuli converge upon a common lethal effector mechanism: accumulation of lipid peroxides at the plasma membrane. These results indicate that distinct genetic mechanisms regulate ferroptosis sensitivity, with implications for the initiation and analysis of this process in vivo.
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Affiliation(s)
- Leslie Magtanong
- Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Grace D Mueller
- Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Kevin J Williams
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; UCLA Lipidomics Laboratory, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Maximilian Billmann
- Department of Computer Science and Engineering, University of Minnesota-Twin Cities, 200 Union Street, Minneapolis, MN 55455, USA
| | - Katherine Chan
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - David A Armenta
- Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Lauren E Pope
- Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Jason Moffat
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Charles Boone
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Chad L Myers
- Department of Computer Science and Engineering, University of Minnesota-Twin Cities, 200 Union Street, Minneapolis, MN 55455, USA; Program in Biomedical Informatics and Computational Biology, University of Minnesota-Twin Cities, 200 Union Street, Minneapolis, MN 55455, USA
| | - James A Olzmann
- Departments of Molecular and Cell Biology and Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, CA 94720, USA; Chan Zuckerberg Biohub, San Francisco, CA 94158, USA
| | - Steven J Bensinger
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA; UCLA Lipidomics Laboratory, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Scott J Dixon
- Department of Biology, Stanford University, Stanford, CA 94305, USA.
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Wei H, Movahedi A, Zhang Y, Aghaei-Dargiri S, Liu G, Zhu S, Yu C, Chen Y, Zhong F, Zhang J. Long-Chain Acyl-CoA Synthetases Promote Poplar Resistance to Abiotic Stress by Regulating Long-Chain Fatty Acid Biosynthesis. Int J Mol Sci 2022; 23:ijms23158401. [PMID: 35955540 PMCID: PMC9369374 DOI: 10.3390/ijms23158401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 02/04/2023] Open
Abstract
Long-chain acyl-CoA synthetases (LACSs) catalyze fatty acids (FAs) to form fatty acyl-CoA thioesters, which play essential roles in FA and lipid metabolisms and cuticle wax biosynthesis. Although LACSs from Arabidopsis have been intensively studied, the characterization and function of LACSs from poplar are unexplored. Here, 10 poplar PtLACS genes were identified from the poplar genome and distributed to eight chromosomes. A phylogenetic tree indicated that PtLACSs are sorted into six clades. Collinearity analysis and duplication events demonstrated that PtLACSs expand through segmental replication events and experience purifying selective pressure during the evolutionary process. Expression patterns revealed that PtLACSs have divergent expression changes in response to abiotic stress. Interaction proteins and GO analysis could enhance the understanding of putative interactions among protein and gene regulatory networks related to FA and lipid metabolisms. Cluster networks and long-chain FA (LCFA) and very long-chain FA (VLCFA) content analysis revealed the possible regulatory mechanism in response to drought and salt stresses in poplar. The present study provides valuable information for the functional identification of PtLACSs in response to abiotic stress metabolism in poplar.
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Affiliation(s)
- Hui Wei
- Key Laboratory of Landscape Plant Genetics and Breeding, School of Life Sciences, Nantong University, Nantong 226019, China; (H.W.); (G.L.); (C.Y.); (Y.C.); (F.Z.)
| | - Ali Movahedi
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (Y.Z.); (S.Z.)
- College of Arts and Sciences, Arlington International University, Wilmington, DE 19804, USA
- Correspondence: (A.M.); (J.Z.)
| | - Yanyan Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (Y.Z.); (S.Z.)
| | - Soheila Aghaei-Dargiri
- Department of Horticulture, Faculty of Agriculture and Natural Resources, University of Hormozgan, Bandar Abbas 47916193145, Iran;
| | - Guoyuan Liu
- Key Laboratory of Landscape Plant Genetics and Breeding, School of Life Sciences, Nantong University, Nantong 226019, China; (H.W.); (G.L.); (C.Y.); (Y.C.); (F.Z.)
| | - Sheng Zhu
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (Y.Z.); (S.Z.)
| | - Chunmei Yu
- Key Laboratory of Landscape Plant Genetics and Breeding, School of Life Sciences, Nantong University, Nantong 226019, China; (H.W.); (G.L.); (C.Y.); (Y.C.); (F.Z.)
| | - Yanhong Chen
- Key Laboratory of Landscape Plant Genetics and Breeding, School of Life Sciences, Nantong University, Nantong 226019, China; (H.W.); (G.L.); (C.Y.); (Y.C.); (F.Z.)
| | - Fei Zhong
- Key Laboratory of Landscape Plant Genetics and Breeding, School of Life Sciences, Nantong University, Nantong 226019, China; (H.W.); (G.L.); (C.Y.); (Y.C.); (F.Z.)
| | - Jian Zhang
- Key Laboratory of Landscape Plant Genetics and Breeding, School of Life Sciences, Nantong University, Nantong 226019, China; (H.W.); (G.L.); (C.Y.); (Y.C.); (F.Z.)
- Correspondence: (A.M.); (J.Z.)
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Dai G, Wang D, Ma S, Hong S, Ding K, Tan X, Ju W. ACSL4 promotes colorectal cancer and is a potential therapeutic target of emodin. Phytomedicine 2022; 102:154149. [PMID: 35567995 DOI: 10.1016/j.phymed.2022.154149] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 04/11/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is an important death-related disease in the world and new therapeutic strategies are urgently needed to reduce mortality. Several studies have demonstrated that emodin, the main ingredient of Rheum palmatum, fights cancer but its potential anti-tumor effect on CRC is still unknown. PURPOSE The present study is aimed to explore the potential anti-tumor effects of emodin against CRC and the underlying molecular mechanism. METHODS CRC-related datasets were screened according to filter criteria in the GEO database and TCGA database. By using screened differentially expressed genes, GO, KEGG and survival analysis were carried out. The expressions of ACSL4, VEGFR1, and VEGFR2 were examined by immunohistochemistry and western blot. Then, pcDNA-ACSL4, pcDNA-VEGFR1, and pcDNA-VEGFR2 were used to overexpress ACSL4, VEGFR1, and VEGFR2, while ACSL4 siRNA was used to silence ACSL4 expression in HCT116 cells. CCK-8 assay and transwell migration assay were used to detect the cell proliferation and invasion. A docking simulation assay and an MST assay were performed to explore the potential mode of emodin binding to ACSL4. The HCT116 cells and CRC mouse model were established to investigate the effects of emodin on CRC. RESULTS The ACSL4, VEGFR1, and VEGFR2 expression were upregulated in CRC tissues and ACSL4 was associated with a shorter survival time in CRC patients. ACSL4 downregulation reduced cell proliferation and invasion, while ACSL4 exhibited a positive correlation with the levels of VEGFR1, VEGFR2, and VEGF. In HCT116 cells, emodin reduced cell proliferation and invasion by inhibiting ACSL4, VEGFR1, and VEGFR2 expression and VEGF secretion. Docking simulation and MST assay confirmed that emodin can directly bind to ACSL4 target. Moreover, ACSL4 overexpression abolished the inhibitory effect of emodin on VEGF secretion and VEGFR1 and VEGFR2 expression, but VEGFR1 and VEGFR2 overexpression did not affect the inhibitory effect of emodin on ACSL4 expression and VEGF secretion. Furthermore, emodin reduced the mortality and tumorigenesis of CRC mice and reduced ACSL4, VEGFR1, VEGFR2 expression, and VEGF content. CONCLUSION Our findings indicate that emodin inhibits proliferation and invasion of CRC cells and reduces VEGF secretion and VEGFR1 and VEGFR2 expression by inhibiting ACSL4. This emodin-induced pathway offers insights into the molecular mechanism of its antitumor effect and provides a potential therapeutic strategy for CRC.
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Affiliation(s)
- Guoliang Dai
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Dong Wang
- Department of Acupuncture and Rehabilitation, Jiangsu Second Chinese Medicine Hospital, Nanjing 210017, China
| | - Shitang Ma
- Life and Health College, Anhui Science and Technology University, Fengyang 233100, China
| | - Shengwei Hong
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Kang Ding
- National Center of Colorectal Surgery, Jiangsu Integrate Colorectal Oncology Center, Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing 210022, China
| | - Xiying Tan
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Wenzheng Ju
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China.
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Li H, Song J, He Y, Liu Y, Liu Z, Sun W, Hu W, Lei Q, Hu X, Chen Z, He X. CRISPR/Cas9 Screens Reveal that Hexokinase 2 Enhances Cancer Stemness and Tumorigenicity by Activating the ACSL4-Fatty Acid β-Oxidation Pathway. Adv Sci (Weinh) 2022; 9:e2105126. [PMID: 35603967 PMCID: PMC9313492 DOI: 10.1002/advs.202105126] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 04/06/2022] [Indexed: 05/04/2023]
Abstract
Metabolic reprogramming is often observed in carcinogenesis, but little is known about the aberrant metabolic genes involved in the tumorigenicity and maintenance of stemness in cancer cells. Sixty-seven oncogenic metabolism-related genes in liver cancer by in vivo CRISPR/Cas9 screening are identified. Among them, acetyl-CoA carboxylase 1 (ACC1), aldolase fructose-bisphosphate A (ALDOA), fatty acid binding protein 5 (FABP5), and hexokinase 2 (HK2) are strongly associated with stem cell properties. HK2 further facilitates the maintenance and self-renewal of liver cancer stem cells. Moreover, HK2 enhances the accumulation of acetyl-CoA and epigenetically activates the transcription of acyl-CoA synthetase long-chain family member 4 (ACSL4), leading to an increase in fatty acid β-oxidation activity. Blocking HK2 or ACSL4 effectively inhibits liver cancer growth, and GalNac-siHK2 administration specifically targets the growth of orthotopic tumor xenografts. These results suggest a promising therapeutic strategy for the treatment of liver cancer.
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Affiliation(s)
- Hongquan Li
- Fudan University Shanghai Cancer Center and Institutes of Biomedical SciencesDepartment of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
| | - Junjiao Song
- Fudan University Shanghai Cancer Center and Institutes of Biomedical SciencesDepartment of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
| | - Yifei He
- Fudan University Shanghai Cancer Center and Institutes of Biomedical SciencesDepartment of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
| | - Yizhe Liu
- Fudan University Shanghai Cancer Center and Institutes of Biomedical SciencesDepartment of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
| | - Zhen Liu
- Fudan University Shanghai Cancer Center and Institutes of Biomedical SciencesDepartment of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
| | - Weili Sun
- Key Laboratory of Breast Cancer in ShanghaiFudan University Shanghai Cancer CenterFudan UniversityShanghai200032China
| | - Weiguo Hu
- Fudan University Shanghai Cancer Center and Institutes of Biomedical SciencesDepartment of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Key Laboratory of Breast Cancer in ShanghaiFudan University Shanghai Cancer CenterFudan UniversityShanghai200032China
| | - Qun‐Ying Lei
- Fudan University Shanghai Cancer Center and Institutes of Biomedical SciencesDepartment of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
| | - Xin Hu
- Key Laboratory of Breast Cancer in ShanghaiFudan University Shanghai Cancer CenterFudan UniversityShanghai200032China
| | - Zhiao Chen
- Fudan University Shanghai Cancer Center and Institutes of Biomedical SciencesDepartment of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
| | - Xianghuo He
- Fudan University Shanghai Cancer Center and Institutes of Biomedical SciencesDepartment of OncologyShanghai Medical CollegeFudan UniversityShanghai200032China
- Key Laboratory of Breast Cancer in ShanghaiFudan University Shanghai Cancer CenterFudan UniversityShanghai200032China
- Collaborative Innovation Center for Cancer Personalized MedicineNanjing Medical UniversityNanjing211166China
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Bengtsson JD, Wallis JG, Browse J. Expression of Physaria longchain acyl-CoA synthetases and hydroxy fatty acid accumulation in transgenic Arabidopsis. J Plant Physiol 2022; 274:153717. [PMID: 35584570 PMCID: PMC9494924 DOI: 10.1016/j.jplph.2022.153717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
Hydroxy fatty acids (HFA) are industrially useful chemical feedstocks that accumulate in seed-storage triacylglycerols (TAG) of several plant species, including castor (Ricinus communis) and Physaria (Physaria fendleri). For researchers, HFA also offer a unique opportunity to trace fatty acid metabolism and modification. Past work producing HFA in Arabidopsis (Arabidopsis thaliana) has demonstrated the importance of isozymes of TAG synthesis from plants that evolved to store HFA and as a result have a high degree of specificity towards HFA substrates. Castor phospholipase A2α (RcPLA2) has specificity for HFA-containing phosphatidylcholine. However, expression of RcPLA2 in HFA-accumulating Arabidopsis line CL37-PLA2 reduced HFA content of TAG. This loss was interpreted as being due to poor ability of Arabidopsis longchain acyl-CoA synthetases (LACSs) to utilize HFAs substrates. LACS enzymes are essential to activate HFA to HFA-CoA for TAG synthesis. Physaria is a close relative of Arabidopsis in the Brassicaceae family. To test the hypothesis that this close relatedness would allow Physaria LACSs to interface successfully with Arabidopsis enzymes of seed lipid metabolism and thereby restore HFA accumulation, we transformed PfLACS4 and PfLACS8 constructs into the CL37-PLA2 line. However, HFA content was not recovered, and biochemical characterization of recombinant PfLACS4 and PfLACS8 indicated that these isozymes have substrate specificities and selectivities that are similar to their Arabidopsis orthologues. These and other results pose an important question about how HFA synthesized on phosphatidylcholine can be transferred into the acyl-CoA pool for TAG synthesis.
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Affiliation(s)
- Jesse D Bengtsson
- Institute of Biological Chemistry, Washington State University, Pullman, WA, USA
| | - James G Wallis
- Institute of Biological Chemistry, Washington State University, Pullman, WA, USA
| | - John Browse
- Institute of Biological Chemistry, Washington State University, Pullman, WA, USA.
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Li M, Guo L, Wang Y, Li Y, Jiang X, Liu Y, Xie DY, Gao L, Xia T. Molecular and biochemical characterization of two 4-coumarate: CoA ligase genes in tea plant (Camellia sinensis). Plant Mol Biol 2022; 109:579-593. [PMID: 35553312 DOI: 10.1007/s11103-022-01269-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 03/22/2022] [Indexed: 06/15/2023]
Abstract
Two 4-coumarate: CoA ligase genes in tea plant involved in phenylpropanoids biosynthesis and response to environmental stresses. Tea plant is rich in flavonoids benefiting human health. Lignin is essential for tea plant growth. Both flavonoids and lignin defend plants from stresses. The biosynthesis of lignin and flavonoids shares a key intermediate, 4-coumaroyl-CoA, which is formed from 4-coumaric acid catalyzed by 4-coumaric acid: CoA ligase (4CL). Herein, we report two 4CL paralogs from tea plant, Cs4CL1 and Cs4CL2, which are a member of class I and II of this gene family, respectively. Cs4CL1 was mainly expressed in roots and stems, while Cs4CL2 was mainly expressed in leaves. The promoter of Cs4CL1 had AC, nine types of light sensitive (LSE), four types of stress-inducible (SIE), and two types of meristem-specific elements (MSE). The promoter of Cs4CL2 also had AC and nine types of LSEs, but only had two types of SIEs and did not have MSEs. In addition, the LSEs varied in the two promoters. Based on the different features of regulatory elements, three stress treatments were tested to understand their expression responses to different conditions. The resulting data indicated that the expression of Cs4CL1 was sensitive to mechanical wounding, while the expression of Cs4CL2 was UV-B-inducible. Enzymatic assays showed that both recombinant Cs4CL1 and Cs4CL2 transformed 4-coumaric acid (CM), ferulic acid (FR), and caffeic acid (CF) to their corresponding CoA ethers. Kinetic analysis indicated that the recombinant Cs4CL1 preferred to catalyze CF, while the recombinant Cs4CL2 favored to catalyze CM. The overexpression of both Cs4CL1 and Cs4CL2 increased the levels of chlorogenic acid and total lignin in transgenic tobacco seedlings. In addition, the overexpression of Cs4CL2 consistently increased the levels of three flavonoid compounds. These findings indicate the differences of Cs4CL1 and Cs4CL2 in the phenylpropanoid metabolism.
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Affiliation(s)
- Mingzhuo Li
- State Key Laboratory of Tea Plant Biochemistry and Utilization, Anhui Agricultural University, Hefei, 230036, China
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, 27695, USA
| | - Lili Guo
- School of Life Science, Anhui Agricultural University, Hefei, 230036, China
| | - Yeru Wang
- School of Life Science, Anhui Agricultural University, Hefei, 230036, China
| | - Yanzhi Li
- State Key Laboratory of Tea Plant Biochemistry and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Xiaolan Jiang
- State Key Laboratory of Tea Plant Biochemistry and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - Yajun Liu
- State Key Laboratory of Tea Plant Biochemistry and Utilization, Anhui Agricultural University, Hefei, 230036, China
| | - De-Yu Xie
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, 27695, USA.
| | - Liping Gao
- School of Life Science, Anhui Agricultural University, Hefei, 230036, China.
| | - Tao Xia
- State Key Laboratory of Tea Plant Biochemistry and Utilization, Anhui Agricultural University, Hefei, 230036, China.
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