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Lv G, Li Y, Wu Z, Zhang Y, Li X, Wang T, Ren W, Liu L, Chen J, Zhang Y. Maize actin depolymerizing factor 1 (ZmADF1) negatively regulates pollen development. Biochem Biophys Res Commun 2024; 703:149637. [PMID: 38354464 DOI: 10.1016/j.bbrc.2024.149637] [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] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024]
Abstract
The normal development of pollen grains and the completion of double fertilization in embryos are crucial for both the sexual reproduction of angiosperms and grain production. Actin depolymerizing factor (ADF) regulates growth, development, and responses to biotic and abiotic stress by binding to actin in plants. In this study, the function of the ZmADF1 gene was validated through bioinformatic analysis, subcellular localization, overexpression in maize and Arabidopsis, and knockout via CRISPR/Cas9. The amino acid sequence of ZmADF1 exhibited high conservation and a similar tertiary structure to that of ADF homologs. Subcellular localization analysis revealed that ZmADF1 is localized mainly to the nucleus and cytoplasm. The ZmADF1 gene was specifically expressed in maize pollen, and overexpression of the ZmADF1 gene decreased the number of pollen grains in the anthers of transgenic Arabidopsis plants. The germination rate of pollen and the empty seed shell rate in the fruit pods of the overexpressing plants were significantly greater than those in the wild-type (WT) plants. In maize, the pollen viability of the knockout lines was significantly greater than that of both the WT and the overexpressing lines. Our results confirmed that the ZmADF1 gene was specifically expressed in pollen and negatively regulated pollen quantity, vigor, germination rate, and seed setting rate. This study provides insights into ADF gene function and possible pathways for improving high-yield maize breeding.
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Affiliation(s)
- Guihua Lv
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China
| | - Yunfeng Li
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Zhengxin Wu
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China
| | - Yahui Zhang
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Xiangnan Li
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China
| | - Tingzheng Wang
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China
| | - Wenchuang Ren
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Lei Liu
- College of Life Science & Biotechnology, Mianyang Normal University, Mianyang, 621000, China
| | - Jianjian Chen
- Institute of Maize and Featured Upland Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310004, China.
| | - Yuanyuan Zhang
- College of Life Science & Biotechnology, Mianyang Normal University, Mianyang, 621000, China.
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Wang D, Ma X, Hu H, Ren J, Liu J, Zhou H. Functional identification of two HMGB1 paralogues provides insights into autophagic machinery in teleost. Fish Shellfish Immunol 2024; 147:109457. [PMID: 38387685 DOI: 10.1016/j.fsi.2024.109457] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/08/2024] [Accepted: 02/15/2024] [Indexed: 02/24/2024]
Abstract
High mobility group box 1 (HMGB1) is a multifunctional regulator that plays different roles in various physiological and pathological processes including cell development, autophagy, inflammation, tumor metastasis, and cell death based on its cellular localization. Unlike mammalian HMGB1, two HMGB1 paralogues (HMGB1a and HMGB1b) have been found in fathead minnow and other fish species and its function as an inflammatory cytokine has been well investigated. However, the role of fish HMGB1 in autophagy regulation has not been well clarified. In the present study, we generated HMGB1 paralogues single (HMGB1a-/- and HMGB1b-/-) and double knockout (DKO) epithelioma papulosum cyprini (EPC) cells from fathead minnow by CRISPR/Cas9 system, and the knockout efficiency of these genes was verified at both gene and protein levels. In this context, the effects of HMGB1 gene knockout on the protein expression of microtubule-associated protein 1 light chain 3 II (LC3-II), an autophagy marker, were determined, showing that single knockout of two HMGB1 paralogues significantly decreased the expression of LC3-II, and these inhibitory effects were further amplified in HMGB1 DKO cells under both basal and rapamycin treatment conditions, indicating the role of two HMGB1 paralogues in fish autophagy. In agreement with this notion, overexpression of HMGB1a or HMGB1b with Flag-tag markedly upregulated LC3-II protein expression. Interestingly, overexpressing two paralogues distributed in both cytoplasm and nucleus. Finally, the role of HMGB1-mediated autophagy was further explored, finding that HMGB1 could interact with Beclin1, a key initiation factor of autophagy. Taken together, these findings highlighted the role of HMGB1 paralogues as the autophagy regulator and increased our understanding of autophagic machinery in teleost.
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Affiliation(s)
- Dan Wang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaoyu Ma
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Hengyi Hu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Jingqi Ren
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Jiaxi Liu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Hong Zhou
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China.
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Kong W, Huang H, Du W, Jiang Z, Luo Y, Yi D, Yang G, Pang Y. Overexpression of MsNIP2 improves salinity tolerance in Medicago sativa. J Plant Physiol 2024; 295:154207. [PMID: 38430574 DOI: 10.1016/j.jplph.2024.154207] [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: 12/16/2023] [Revised: 02/24/2024] [Accepted: 02/24/2024] [Indexed: 03/04/2024]
Abstract
Alfalfa (Medicago sativa) is one of the most widely cultivated forage crops in the world. However, alfalfa yield and quality are adversely affected by salinity stress. Nodulin 26-like intrinsic proteins (NIPs) play essential roles in water and small molecules transport and response to salt stress. Here, we isolated a salt stress responsive MsNIP2 gene and demonstrated its functions by overexpression in alfalfa. The open reading frame of MsNIP2 is 816 bp in length, and it encodes 272 amino acids. It has six transmembrane domains and two NPA motifs. MsNIP2 showed high identity to other known NIP proteins, and its tertiary model was similar to the crystal structure of OsNIP2-1 (7cjs) tetramer. Subcellular localization analysis showed that MsNIP2 protein fused with green fluorescent protein (GFP) was localized to the plasma membrane. Transgenic alfalfa lines overexpressing MsNIP2 showed significantly higher height and branch number compared with the non-transgenic control. The POD and CAT activity of the transgenic alfalfa lines was significantly increased and their MDA content was notably reduced compared with the control group under the treatment of NaCl. The transgenic lines showed higher capability in scavenging oxygen radicals with lighter NBT staining than the control under salt stress. The transgenic lines showed relative lower water loss rate and electrolyte leakage, but relatively higher Na+ content than the control line under salt stress. The relative expression levels of abiotic-stress-related genes (MsHSP23, MsCOR47, MsATPase, and MsRD2) in three transgenic lines were compared with the control, among them, only the expression of MsCOR47 was up-regulated. Consequently, this study offers a novel perspective for exploring the function of MsNIP2 in improving salt tolerance of alfalfa.
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Affiliation(s)
- Weiye Kong
- Grassland Agri-Husbandry Research Center, College of Grassland Science, Qingdao Agricultural University, Qingdao, China; Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Haijun Huang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Wenxuan Du
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Zhihu Jiang
- West Arid Region Grassland Resource and Ecology Key Laboratory, College of Grassland and Environmental Sciences, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Yijing Luo
- Grassland Agri-Husbandry Research Center, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Dengxia Yi
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Guofeng Yang
- Grassland Agri-Husbandry Research Center, College of Grassland Science, Qingdao Agricultural University, Qingdao, China.
| | - Yongzhen Pang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Ma G, Zhang Y, Li X. Overexpression of OsDUF6 increases salt stress tolerance in rice. BMC Plant Biol 2024; 24:216. [PMID: 38532340 DOI: 10.1186/s12870-024-04921-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/18/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Soil salinity is one of the primary environmental stresses faced in rice production. When plants are exposed to salt stress, a series of cellular balances will be disrupted. Dufulin is an immune-induced antiviral agent used in plants. The DUF gene family influences plant response to abiotic stress, and the functional role of OsDUF6(ABA98726.1) in rice response to salt stress is being investigated here. RESULTS Based on the transcriptome analysis of Dufulin treatment in inducing salt tolerance in rice, we selected the OsDUF6 protein located on the cell membrane and studied its molecular function by overexpressing OsDUF6. Salt-induced decreases in root, stem, and leaf length and increased leaf yellowing rate and Na+ concentration in the wild-type plant were mitigated in the overexpressed lines. OsDUF6 overexpression increased the enzymatic antioxidant activities of superoxide dismutase, peroxidase, catalase, and phenylalanine ammonia-lyase. OsDUF6 also played a positive role in Na+ transport as reflected by the increased growth of a salt-sensitive yeast mutant complemented with OsDUF6 in the presence of salt stress. In addition, Reverse transcription quantitative PCR analysis confirmed that the overexpression of OsDUF6 significantly changed the expression level of other genes related to growth and stress tolerance. CONCLUSIONS Combined with previously published data, our results supported the observation that OsDUF6 is an important functional factor in Dufulin-induced promotion of salt stress tolerance in rice.
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Affiliation(s)
- Guangming Ma
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Yong Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Xiangyang Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticides and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China.
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Osakabe M, Yamada N, Sugimoto R, Uesugi N, Nakao E, Honda M, Yanagawa N, Sugai T. The pattern-based interpretation of p53 immunohistochemical expression as a surrogate marker for TP53 mutations in colorectal cancer. Virchows Arch 2024:10.1007/s00428-024-03790-z. [PMID: 38512505 DOI: 10.1007/s00428-024-03790-z] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 01/21/2024] [Accepted: 03/19/2024] [Indexed: 03/23/2024]
Abstract
Mutations in the TP53 gene, most commonly observed in colorectal cancer (CRC), play an essential role in colorectal carcinogenesis. Although p53 immunohistochemical (IHC) expression patterns have been argued to serve as an excellent surrogate marker for TP53 mutations, its performance has not been confirmed in CRC. We aimed to determine whether p53 IHC expression patterns accurately predict TP53 mutation status as examined by next-generation sequencing (NGS). We performed p53 IHC and sequencing of TP53 by NGS in 92 CRC cases with a microsatellite stable phenotype to investigate the correlation between TP53 mutation status and p53 IHC expression. The concordance between p53 IHC and TP53 mutation was 84/92 (91.3%) overall. However, 6 mutant cases were found in 39 cases with a wild-type IHC pattern. Additionally, there were two discordant cases in which an abnormal p53 IHC pattern (overexpression or cytoplasmic pattern) was found, while NGS detected wild-type p53. Therefore, the optimized p53 IHC performs well and serves as a surrogate test for TP53 mutation in CRC cases. Furthermore, it demonstrates excellent reproducibility between two independent experienced pathologists and may have novel clinical utility for molecular classification algorithms in CRC. We suggest that the four-tier classification of p53 IHC patterns is helpful to evaluate molecular colorectal carcinogenesis.
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Affiliation(s)
- Mitsumasa Osakabe
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 2-1-1, Shiwagun'yahabachou, Morioka, 028-3695, Japan
| | - Noriyuki Yamada
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 2-1-1, Shiwagun'yahabachou, Morioka, 028-3695, Japan
| | - Ryo Sugimoto
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 2-1-1, Shiwagun'yahabachou, Morioka, 028-3695, Japan
| | - Noriyuki Uesugi
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 2-1-1, Shiwagun'yahabachou, Morioka, 028-3695, Japan
- Diagnostic Pathology Center, Southern Tohoku General Hospital, 7-115, Hachiyamada, Kooriyama City, 963-8563, Japan
| | - Eiichi Nakao
- Diagnostic Pathology Center, Southern Tohoku General Hospital, 7-115, Hachiyamada, Kooriyama City, 963-8563, Japan
- Department of Minimally Invasive Surgical and Medical Oncology, Fukushima Medical University, 1 Hikarigaoka Fukushima, Fukushima, 960-1295, Japan
- Department of Surgery, Southern Tohoku General Hospital, 7-115, Hachiyamada, Kooriyama City, 963-8563, Japan
| | - Michitaka Honda
- Department of Minimally Invasive Surgical and Medical Oncology, Fukushima Medical University, 1 Hikarigaoka Fukushima, Fukushima, 960-1295, Japan
- Department of Surgery, Southern Tohoku General Hospital, 7-115, Hachiyamada, Kooriyama City, 963-8563, Japan
| | - Naoki Yanagawa
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 2-1-1, Shiwagun'yahabachou, Morioka, 028-3695, Japan
| | - Tamotsu Sugai
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 2-1-1, Shiwagun'yahabachou, Morioka, 028-3695, Japan.
- Diagnostic Pathology Center, Southern Tohoku General Hospital, 7-115, Hachiyamada, Kooriyama City, 963-8563, Japan.
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Le MK, Oishi N, Mochizuki K, Kondo T. Immunohistochemical detection of cancer genetic abnormalities. Pathol Res Pract 2024; 255:155109. [PMID: 38340581 DOI: 10.1016/j.prp.2024.155109] [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: 11/14/2023] [Accepted: 01/07/2024] [Indexed: 02/12/2024]
Abstract
New applications of immunohistochemistry (IHC) expand rapidly due to the development of molecular analyses and an increased understanding of molecular biology. IHC becomes much more important as a screening or even a confirmatory test for molecular changes in cancer. The past decades have witnessed the release of many immunohistochemical markers of the new generation. The novel markers have extensively high specificity and sensitivity for the detection of genetic abnormalities. In addition to diagnostic utility, IHC has been validated to be a practical tool in terms of treatments, especially molecular targeted therapy. In this review, we first describe the common alterations of protein IHC staining in human cancer: overexpression, underexpression, or loss of expression and altered staining pattern. Next, we examine the relationship between staining patterns and genetic aberrations regarding both conventional and novel IHC markers. We also mention current mutant-specific and fusion-specific antibodies and their concordance with molecular techniques. We then describe the basic molecular mechanisms from genetic events to corresponding protein expression patterns (membranous, cytoplasmic, or nuclear patterns). Finally, we shortly discuss the applications of immunohistochemistry in molecular targeted therapy. IHC markers can serve as a complementary or companion diagnostic test to provide valuable information for targeted therapy. Moreover, immunohistochemistry is also crucial as a companion diagnostic test in immunotherapy. The increased number of IHC novel antibodies is broadening its application in anti-cancer therapies.
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Affiliation(s)
- Minh-Khang Le
- Department of Pathology, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Naoki Oishi
- Department of Pathology, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Kunio Mochizuki
- Department of Pathology, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Tetsuo Kondo
- Department of Pathology, University of Yamanashi, Yamanashi 409-3898, Japan.
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Nguyen VDH, Huynh TNP, Nguyen TTT, Ho HH, Trinh LTP, Nguyen AQ. Expression and characterization of a lipase EstA from Bacillus subtilis KM-BS for application in bio-hydrolysis of waste cooking oil. Protein Expr Purif 2024; 215:106419. [PMID: 38110109 DOI: 10.1016/j.pep.2023.106419] [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: 09/19/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 12/20/2023]
Abstract
A lipase EstA from Bacillus subtilis KM-BS was expressed in Escherichia coli BL21 (DE3) cells. The recombinant enzyme achieved high activity (49.67 U/mL) with protein concentration of 1.29 mg/mL under optimal conditions at the large-scale expression of 6 h and post-induction time at 30 °C using 0.1 mM isopropyl-β-d-thiogalactopyranoside (IPTG). The optimal temperature and pH of the purified enzyme were at 45-55 °C and pH 8.0 - 9.0, respectively. Activity of the purified enzyme was stable in the presence of 1 mM Ca2+; stimulated by 1 mM Mg2+ and Mn2+, and inhibited by Fe3+. A significant amount of fatty acids was released during the hydrolysis of waste cooking oil under the catalysis of purified lipase, indicating that this recombinant lipase showed promise as a suitable candidate in industrial fields, particularly in biodiesel and detergent sector.
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Affiliation(s)
- Vinh D H Nguyen
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Trang N P Huynh
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Thao T T Nguyen
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Hai H Ho
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Ly T P Trinh
- Research Institute for Biotechnology and Environment, Nong Lam University, Ho Chi Minh City, Viet Nam; Faculty of Biological Sciences, Nong Lam University, Ho Chi Minh City, Viet Nam
| | - Anh Q Nguyen
- Khai Minh Technology Group - KMTG, Ho Chi Minh City, Viet Nam.
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Xu L, Zhu X, Yi F, Liu Y, Sod B, Li M, Chen L, Kang J, Yang Q, Long R. A genome-wide study of the lipoxygenase gene families in Medicago truncatula and Medicago sativa reveals that MtLOX24 participates in the methyl jasmonate response. BMC Genomics 2024; 25:195. [PMID: 38373903 PMCID: PMC10875803 DOI: 10.1186/s12864-024-10071-1] [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: 05/18/2023] [Accepted: 01/31/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Lipoxygenase (LOX) is a multifunctional enzyme that is primarily related to plant organ growth and development, biotic and abiotic stress responses, and production of flavor-associated metabolites. In higher plants, the LOX family encompasses several isozymes with varying expression patterns between tissues and developmental stages. These affect processes including seed germination, seed storage, seedling growth, fruit ripening, and leaf senescence. LOX family genes have multiple functions in response to hormones such as methyl jasmonate (MeJA) and salicylic acid. RESULTS In this study, we identified 30 and 95 LOX homologs in Medicago truncatula and Medicago sativa, respectively. These genes were characterized with analyses of their basic physical and chemical properties, structures, chromosomal distributions, and phylogenetic relationships to understand structural variations and their physical locations. Phylogenetic analysis was conducted for members of the three LOX subfamilies (9-LOX, type I 13-LOX, and type II 13-LOX) in Arabidopsis thaliana, Glycine max, M. truncatula, and M. sativa. Analysis of predicted promoter elements revealed several relevant cis-acting elements in MtLOX and MsLOX genes, including abscisic acid (ABA) response elements (ABREs), MeJA response elements (CGTCA-motifs), and antioxidant response elements (AREs). Cis-element data combined with transcriptomic data demonstrated that LOX gene family members in these species were most likely related to abiotic stress responses, hormone responses, and plant development. Gene expression patterns were confirmed via quantitative reverse transcription PCR. Several MtLOX genes (namely MtLOX15, MtLOX16, MtLOX20, and MtLOX24) belonging to the type I 13-LOX subfamily and other LOX genes (MtLOX7, MtLOX11, MsLOX23, MsLOX87, MsLOX90, and MsLOX94) showed significantly different expression levels in the flower tissue, suggesting roles in reproductive growth. Type I 13-LOXs (MtLOX16, MtLOX20, MtLOX21, MtLOX24, MsLOX57, MsLOX84, MsLOX85, and MsLOX94) and type II 13-LOXs (MtLOX5, MtLOX6, MtLOX9, MtLOX10, MsLOX18, MsLOX23, and MsLOX30) were MeJA-inducible and were predicted to function in the jasmonic acid signaling pathway. Furthermore, exogenous MtLOX24 expression in Arabidopsis verified that MtLOX24 was involved in MeJA responses, which may be related to insect-induced abiotic stress. CONCLUSIONS We identified six and four LOX genes specifically expressed in the flowers of M. truncatula and M. sativa, respectively. Eight and seven LOX genes were induced by MeJA in M. truncatula and M. sativa, and the LOX genes identified were mainly distributed in the type I and type II 13-LOX subfamilies. MtLOX24 was up-regulated at 8 h after MeJA induction, and exogenous expression in Arabidopsis demonstrated that MtLOX24 promoted resistance to MeJA-induced stress. This study provides valuable new information regarding the evolutionary history and functions of LOX genes in the genus Medicago.
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Affiliation(s)
- Lei Xu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Xiaoxi Zhu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Fengyan Yi
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, 010031, China
| | - Yajiao Liu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Bilig Sod
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Mingna Li
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Lin Chen
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Junmei Kang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Qingchuan Yang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Ruicai Long
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Meselhy AG, Mosa K, Chhikara S, Kumar K, Musante C, White JC, Dhankher OP. Plasma membrane intrinsic protein OsPIP2;6 is involved in root-to-shoot arsenic translocation in rice (Oryza sativa L.). Plant Cell Rep 2024; 43:64. [PMID: 38340214 DOI: 10.1007/s00299-024-03157-3] [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: 11/25/2023] [Accepted: 01/11/2024] [Indexed: 02/12/2024]
Abstract
KEY MESSAGE This study demonstrates the crucial role of OsPIP2;6 for translocation of arsenic from roots to shoots, which can decrease arsenic accumulation in rice for improved food safety. Arsenic (As) contamination in food and water, primarily through rice consumption, poses a significant health risk due to its natural tendency to accumulate inorganic arsenic (iAs). Understanding As transport mechanisms is vital for producing As-free rice. This study investigates the role of rice plasma membrane intrinsic protein, OsPIP2;6, for AsIII tolerance and accumulation. RNAi-mediated suppression of OsPIP2;6 expression resulted in a substantial (35-65%) reduction in As accumulation in rice shoots, while root arsenic levels remained largely unaffected. Conversely, OsPIP2;6 overexpression led to 15-76% higher arsenic accumulation in shoots, with no significant change in root As content. In mature plants, RNAi suppression caused (19-26%) decrease in shoot As, with flag leaves and grains showing a 16% reduction. OsPIP2;6 expression was detected in both roots and shoots, with higher transcript levels in shoots. Localization studies revealed its presence in vascular tissues of both roots and shoots. Overall, our findings highlight OsPIP2;6's role in root-to-shoot As translocation, attributed to its specific localization in the vascular tissue of roots and leaves. This knowledge can facilitate the development of breeding programs to mitigate As accumulation in rice and other food crops for improved food safety and increasing productivity on As-contaminated soils.
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Affiliation(s)
- Ahmed G Meselhy
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
| | - Kareem Mosa
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
- Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Sudesh Chhikara
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA
| | - Kundan Kumar
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA
- Department of Biological Sciences, Birla Institute of Technology & Science, Pilani, K. K. Birla Goa Campus, Zuarinagar, Goa, India
| | - Craig Musante
- Connecticut Agricultural Experiment Station, New Haven, CT, USA
| | - Jason C White
- Connecticut Agricultural Experiment Station, New Haven, CT, USA
| | - Om Parkash Dhankher
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA.
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10
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Song H, Sun H, Xin J, Yang D, Deng X, Liu J, Li J, Zhang M, Wang Y, Yang M. FLOWERING LOCUS T genes control floral induction in lotus. Plant Physiol Biochem 2024; 207:108339. [PMID: 38199028 DOI: 10.1016/j.plaphy.2024.108339] [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: 12/07/2023] [Accepted: 01/04/2024] [Indexed: 01/12/2024]
Abstract
The transition to flowering is a vital process in the lotus life cycle that significantly impacts its ornamental value and seed production. However, the molecular basis of floral transition in lotus remains largely unknown. Here, eight homologous FLOWERING LOCUS T (FT) genes were initially characterized in lotus, which were designated as NnFT1-NnFT8. All of these genes were found to possess the conserved PEBP domain and exhibited high transcript levels in both lotus leaves and floral organs. The proNnFT:β-glucuronidase (GUS) assay exhibited GUS staining in the vascular tissues of leaves. Furthermore, subcellular localization revealed that NnFT proteins were present in various cellular organelles, including the nucleus, cytoplasm, and endoplasmic reticulum. Overexpression of two NnFT homologs, NnFT2 and NnFT3, rescued the late flowering phenotype in the Arabidopsis ft-10 mutant, indicating the stimulative roles of NnFTs in floral induction. Moreover, NnFTs demonstrated interactions with a bZIP transcription factor, FLOWERING LOCUS D (NnFD), both in vitro and in vivo. These findings will not only deepen our understanding of the regulatory mechanism underlying lotus floral transition, but also provide valuable genetic resources for creating new lotus varieties with extended blooming periods using molecular strategies in the future.
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Affiliation(s)
- Heyun Song
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Heng Sun
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
| | - Jia Xin
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Dong Yang
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
| | - Xianbao Deng
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
| | - Juan Liu
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
| | - Juanjuan Li
- Hubei Province Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, College of Life Science and Technology, Hubei Engineering University, Xiaogan, Hubei, 432000, China.
| | - Minghua Zhang
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yuxin Wang
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Mei Yang
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
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11
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Tanaka-Yano M, Zong L, Park B, Yanai H, Tekin-Turhan F, Blackshear PJ, Beerman I. Tristetraprolin overexpression drives hematopoietic changes in young and middle-aged mice generating dominant mitigating effects on induced inflammation in murine models. GeroScience 2024; 46:1271-1284. [PMID: 37535204 PMCID: PMC10828162 DOI: 10.1007/s11357-023-00879-2] [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: 05/12/2023] [Accepted: 07/17/2023] [Indexed: 08/04/2023] Open
Abstract
Tristetraprolin (TTP), encoded by Zfp36 in mice, is one of the best-characterized tandem zinc-finger mRNA binding proteins involved in mRNA deadenylation and decay. TTPΔARE mice lack an AU-rich motif in the 3'-untranslated regions of TTP mRNA, leading to increased TTP mRNA stability and more TTP protein, resulting in elevated mRNA decay rates of TTP targets. We examined the effect of TTP overexpression on the hematopoietic system in both young and middle-aged mice using TTPΔARE mice and found alterations in blood cell frequencies, with loss of platelets and B220 cells and gains of eosinophils and T cells. TTPΔARE mice also have skewed primitive populations in the bone marrow, with increases in myeloid-biased hematopoietic stem cells (HSCs) but decreases in granulocyte/macrophage-biased multipotent progenitors (MPP3) in both young and middle-aged mice. Changes in the primitive cells' frequencies were associated with transcriptional alterations in the TTP overexpression cells specific to age as well as cell type. Regardless of age, there was a consistent elevation of transcripts regulated by TNFα and TGFβ signaling pathways in both the stem and multipotent progenitor populations. HSCs with TTP overexpression had decreased reconstitution potential in murine transplants but generated hematopoietic environments that mitigated the inflammatory response to the collagen antibody-induced arthritis (CAIA) challenge, which models rheumatoid arthritis and other autoimmune disorders. This dampening of the inflammatory response was even present when there was only a small frequency of TTP overexpressing cells present in the middle-aged mice. We provide an analysis of the early hematopoietic compartments with elevated TTP expression in both young and middle-aged mice which inhibits the reconstitution potential of the HSCs but generates a hematopoietic system that provides dominant repression of induced inflammation.
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Affiliation(s)
- Mayuri Tanaka-Yano
- Epigenetics and Stem Cell Unit, Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD, 21224, USA
| | - Le Zong
- Epigenetics and Stem Cell Unit, Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD, 21224, USA
| | - Bongsoo Park
- Epigenetics and Stem Cell Unit, Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD, 21224, USA
| | - Hagai Yanai
- Epigenetics and Stem Cell Unit, Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD, 21224, USA
| | - Ferda Tekin-Turhan
- Epigenetics and Stem Cell Unit, Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD, 21224, USA
| | - Perry J Blackshear
- Signal Transduction Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA
| | - Isabel Beerman
- Epigenetics and Stem Cell Unit, Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD, 21224, USA.
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12
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Zhang X, Guo R, Bi F, Chen Y, Xue X, Wang D. Overexpression of kojR and the entire koj gene cluster affect the kojic acid synthesis in Aspergillus oryzae 3.042. Gene 2024; 892:147852. [PMID: 37776988 DOI: 10.1016/j.gene.2023.147852] [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: 08/02/2023] [Revised: 09/07/2023] [Accepted: 09/27/2023] [Indexed: 10/02/2023]
Abstract
Kojic acid (KA), a fungal secondary metabolite, has various applications in the cosmetics, pharmaceutical, and food industries. Aspergillus oryzae, the primary strain, has been identified as a koj gene cluster positively responsible for KA biosynthesis. In this study, we obtained transformants T58 and T31, which overexpressed either solo kojR or the entire koj gene cluster, respectively. These transformants exhibited peak KA production on the 5th day of shake flask fermentation, with 32.5 g/L and 26.57 g/L that 324.28 % and 246.87 % higher than the control strain with 7.64 g/L, respectively. Morphological analysis revealed that the highly productive KA strains had reduced conidial production but increased antioxidant capacity. The qRT-PCR analysis revealed that relative expression levels of kojR in the transformants were remarkably higher that the primary cause for the increased KA yield. Moreover, the high expression of kojR could also influence the expression of the key enzymes involved in the KA biosynthesis process, such as glucose dehydrogenase and gluconate dehydrogenase. These findings can assist in discovering more about how the koj gene cluster in A. oryzae influences its growth and KA production. And provides valuable insights into facilitating strain improvement and benefits for the future.
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Affiliation(s)
- Xuemei Zhang
- Key Laboratory of Industrial Microbiology & Engineering Research Center of Food Biotechnology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Rui Guo
- Key Laboratory of Industrial Microbiology & Engineering Research Center of Food Biotechnology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Futi Bi
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China.
| | - Yue Chen
- Key Laboratory of Industrial Microbiology & Engineering Research Center of Food Biotechnology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Xianli Xue
- Key Laboratory of Industrial Microbiology & Engineering Research Center of Food Biotechnology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Key Laboratory of Industrial Fermentation Microbiology, Tianjin 300457, China.
| | - Depei Wang
- Key Laboratory of Industrial Microbiology & Engineering Research Center of Food Biotechnology of Ministry of Education, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Key Laboratory of Industrial Fermentation Microbiology, Tianjin 300457, China.
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13
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Dai T, Yuan K, Shen J, Miao J, Liu X. Ametoctradin resistance risk and its resistance-related point mutation in PsCytb of Phytophthora sojae confirmed using ectopic overexpression. Pestic Biochem Physiol 2024; 198:105747. [PMID: 38225090 DOI: 10.1016/j.pestbp.2023.105747] [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: 11/06/2023] [Revised: 12/06/2023] [Accepted: 12/10/2023] [Indexed: 01/17/2024]
Abstract
Ametoctradin is mainly used to treat plant oomycetes diseases, but the mechanism and resistance risk of ametoctradin in Phytophthora sojae remain unknown. This study determined the ametoctradin sensitivity of 106 P. sojae isolates and found that the frequency distribution of the median effective concentration (EC50) of ametoctradin was unimodal with a mean value of 0.1743 ± 0.0901 μg/mL. Furthermore, ametoctradin-resistant mutants had a substantially lower fitness index compared with that of wild-type isolates. Although ametoctradin did not show cross-resistance to other fungicides, negative cross-resistance to amisulbrom was found. In comparison to sensitive isolates, the control efficacy of ametoctradin to resistant mutants was lower, implying a low to moderate ametoctradin resistance risk in P. sojae. All ametoctradin-resistant mutants contained a S33L point mutation in PsCytb. A system with overexpression of PsCytb in the nucleus was established. When we ectopically overexpressed S33L-harboring PsCytb, P. sojae developed ametoctradin resistance. We hypothesized that the observed negative resistance between ametoctradin and amisulbrom could be attributed to conformational changes in the binding cavity of PsCytb at residues 33 and 220.
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Affiliation(s)
- Tan Dai
- State Key Laboratory for Crop Stress Resistance and High-Efficiency, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Kang Yuan
- State Key Laboratory for Crop Stress Resistance and High-Efficiency, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jiayi Shen
- State Key Laboratory for Crop Stress Resistance and High-Efficiency, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jianqiang Miao
- State Key Laboratory for Crop Stress Resistance and High-Efficiency, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xili Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China; Department of Plant Pathology, College of Plant Protection, China Agricultural University, 2 Yuanmingyuanxi Road, Beijing 100193, China.
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14
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Peng Q, Li X, Li G, Hao X, Liu X. Resistance risk assessment of mefentrifluconazole in Corynespora cassiicola and the control of cucumber target spot by a two-way mixture of mefentrifluconazole and prochloraz. Pestic Biochem Physiol 2024; 198:105719. [PMID: 38225065 DOI: 10.1016/j.pestbp.2023.105719] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 01/17/2024]
Abstract
The cucumber target spot, caused by Corynespora cassiicola, is a major cucumber disease in China. Mefentrifluconazole, a new triazole fungicide, exhibits remarkable efficacy in controlling cucumber target spot. However, the resistance risk and mechanism remain unclear. In this study, the inhibitory activity of mefentrifluconazole against 101 C. cassiicola isolates was determined, and the results indicated that the EC50 values ranged between 0.15 and 12.85 μg/mL, with a mean of 4.76 μg/mL. Fourteen mefentrifluconazole-resistant mutants of C. cassiicola were generated from six parental isolates in the laboratory through fungicide adaptation or UV irradiation. The resistance was relatively stable after ten consecutive transfers on a fungicide-free medium. No cross-resistance was observed between mefentrifluconazole and pyraclostrobin, fluopyram, prochloraz, mancozeb, or difenoconazole. Investigations into the biological characteristics of the resistant mutants revealed that six resistant mutants exhibited an enhanced compound fitness index (CFI) compared to the parental isolates, while others displayed a reduced or comparable CFI. The overexpression of CcCYP51A and CcCYP51B was detected in the resistant mutants, regardless of the presence or absence of mefentrifluconazole. Additionally, a two-way mixture of mefentrifluconazole and prochloraz at a concentration of 7:3 demonstrated superior control efficacy against the cucumber target spot, achieving a protection rate of 80%. In conclusion, this study suggests that the risk of C. cassiicola developing resistance to mefentrifluconazole is medium, and the overexpression of CcCYP51A and CcCYP51B might be associated with mefentrifluconazole resistance in C. cassiicola. The mefentrifluconazole and prochloraz two-way mixture presented promising control efficacy against the cucumber target spot.
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Affiliation(s)
- Qin Peng
- Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiuhuan Li
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Guixiang Li
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xinchang Hao
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xili Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China; Department of Plant Pathology, College of Plant Protection, China Agricultural University, 2 Yuanmingyuanxi Road, Beijing 100193, China.
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15
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Wang J, Wang L, Zhang X, Li S, Wang X, Yang L, Wu F, Su H. Genome-wide identification of nitrate transporter 1/peptide transporter family (NPF) genes reveals that PaNPF5.5 enhances nitrate uptake in sweet cherry under high nitrate condition. Gene 2023; 888:147797. [PMID: 37708922 DOI: 10.1016/j.gene.2023.147797] [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: 07/17/2023] [Revised: 09/10/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
NITRATE TRANSPORTER 1 (NRT1)/PEPTIDETRANSPORTER (PTR) family (NPF) plays a significant role in nitrate transport. However, little is known about the NPF genes in sweet cherry. In this study, a total of 60 PaNPF genes in sweet cherry were identified by bioinformatics, which were divided into 8 families. Transcriptomic analysis showed that most PaNPF genes responded to both low and high nitrate conditions, especially PaNPF5.5, which was highly up-regulated under high nitrate condition. Molecular analysis showed that PaNPF5.5 was a transporter localized to the cell membrane. Further functional studies found that PaNPF5.5 overexpression promoted the growth of sweet cherry rootstock Gisela 6 by accelerating the nitrogen absorption process under high nitrate environment. Taken together, we believe that PaNPF5.5 plays an important role in regulating the transport of nitrate at high nitrate conditions, and provides a promising method for improving nitrate absorption efficiency at nitrogen excess environment.
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Affiliation(s)
- Jingtao Wang
- School of Agriculture, Ludong University, Yantai 264025, China; College of Life Sciences, Ludong University, Yantai 264025, China
| | - Lei Wang
- College of Life Sciences, Ludong University, Yantai 264025, China
| | - Xu Zhang
- Yantai Academy of Agricultural Sciences, Yantai, Shandong 264025, China
| | - Songlin Li
- School of Agriculture, Ludong University, Yantai 264025, China
| | - Xiaohui Wang
- School of Agriculture, Ludong University, Yantai 264025, China
| | - Lina Yang
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, Qingdao 266071, China
| | - Fanlin Wu
- School of Agriculture, Ludong University, Yantai 264025, China.
| | - Hongyan Su
- College of Agriculture and Forestry Sciences, Linyi University, Linyi 276000, China.
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16
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Yan B, Ma A. PriA is involved in Pleurotus ostreatus development and defense against Pseudomonas tolaasii. Antonie Van Leeuwenhoek 2023; 117:1. [PMID: 38095768 DOI: 10.1007/s10482-023-01900-6] [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: 08/25/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023]
Abstract
Pleurotus ostreatus is a crucial commercial mushroom widely cultivated for diverse uses. Scientists have worked on breeding disease-resistant and high-yielding varieties to secure food supply. Studies on the molecular genetic mechanism of growth and development can provide valuable information to facilitate crop breeding programs by genetic engineering. Aegerolysins are pore-forming proteins widely distributed in both prokaryotes and eukaryotes, which are reported to have haemolytic activity and be involved in the early stages of fructification. The present study aimed to explore biological function of a differential expressed aegerolysin gene PriA in P. ostreatus. The expression level of PriA gene was higher in primordium and fruiting body than that in mycelium. The PriA expression in overexpression (OE) and RNAi interference (RNAi) strains was detected by qRT-PCR. The RNAi strains grew at slightly slower rates and advanced producing yellow pigments than the wild type, while OE strains showed no prominent phenotypic characteristics. Furthermore, Pseudomonas tolaasii infection assays showed that the PriA OE strains could enhance mycelia and caps resistance to P. tolaasii. These data demonstrate PriA from P. ostreatus play an essential role in mycelial development and increase antagonism against P. tolaasii. Our study provides some reference information on interactions between edible fungi and pathogenic bacteria and offers a new resistance-conferring gene for breeding.
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Affiliation(s)
- Biyun Yan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Aimin Ma
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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17
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Zhang TY, Gong CW, Pu J, Peng AC, Li XY, Wang YM, Wang XG. Enhancement of tolerance against flonicamid in Solenopsis invicta (Hymenoptera: Formicidae) through overexpression of CYP6A14. Pestic Biochem Physiol 2023; 197:105651. [PMID: 38072526 DOI: 10.1016/j.pestbp.2023.105651] [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: 08/28/2023] [Revised: 10/04/2023] [Accepted: 10/15/2023] [Indexed: 12/18/2023]
Abstract
Solenopsis invicta is a main issue in southern China and is causing significant damage to the local ecological environment. The extensive use of insecticides has resulted in the development of tolerance in S. invicta. In our study, ten S. invicta colonies from Sichuan Province exhibited varying degrees of tolerance against flonicamid, with LC50 values from 0.49 mg/L to 8.54 mg/L. The sensitivity of S. invicta to flonicamid significantly increased after treatment with the P450 enzyme inhibitor piperonyl butoxide (PBO). Additionally, the activity of P450 in S. invicta was significantly enhanced after being treated with flonicamid. Flonicamid induced the expression levels of CYP4aa1, CYP9e2, CYP4C1, and CYP6A14. The expression levels of these P450 genes were significantly higher in the tolerant colonies compared to the sensitive colonies, and the relative copy numbers of CYP6A14 in the tolerant colonies were 2.01-2.15 fold. RNAi feeding treatment effectively inhibited the expression of P450 genes, thereby reducing the tolerance of S. invicta against flonicamid. In addition, the overexpression of CYP6A14 in D. melanogaster resulted in reduced sensitivity to flonicamid. Our investigations revealed hydrophobic interactions between flonicamid and seven amino acid residues of CYP6A14, along with the formation of a hydrogen bond between Glu306 and flonicamid. Our findings suggest that flonicamid can effectively control S. invicta and P450 plays a pivotal role in the tolerance of S. invicta against flonicamid. The overexpression of CYP6A14 also increased tolerance to flonicamid.
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Affiliation(s)
- Tian-Yi Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China; College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Chang-Wei Gong
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China; College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Jian Pu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China; College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - An-Chun Peng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China; College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Xu-Yang Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China; College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yu-Meng Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China; College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Xue-Gui Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China; College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China.
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18
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Ji Q, Zhang K, Cao N, You X, Cao S, Wang M, Guo J, Wang H, Mei K. Highly efficient overexpression and purification of multisubunit tethering complexes in Saccharomyces cerevisiae. Protein Expr Purif 2023; 212:106351. [PMID: 37574178 DOI: 10.1016/j.pep.2023.106351] [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: 05/05/2023] [Revised: 08/02/2023] [Accepted: 08/09/2023] [Indexed: 08/15/2023]
Abstract
Vesicle trafficking is a fundamental cellular process that ensures proper material exchange between organelles in eukaryotic cells, and multisubunit tethering complexes (MTCs) are essential in this process. The heterohexameric homotypic fusion and protein sorting (HOPS) complex, which functions in the endolysosomal pathway, is a member of MTCs. Despite its critical role, the complex composition and low-expression level of HOPS have made its expression and purification extremely challenging. In this study, we present a highly efficient strategy for overexpressing and purifying HOPS from Saccharomyces cerevisiae. We achieved HOPS overexpression by integrating a strong promoter TEF1 before each subunit using the gRNA-tRNA array for CRISPR-Cas9 (GTR-CRISPR) system. The HOPS complex was subsequently purified using Staphylococcus aureus protein A (ProtA) affinity purification and size-exclusion chromatography, resulting in high purity and homogeneity. We obtained two-fold more HOPS using this method than that obtained using the commonly used GAL1 promoter-controlled HOPS overexpression. Negative staining electron microscopy analysis confirmed the correct assembly of HOPS. Notably, we also successfully purified two other MTCs, class C core vacuole/endosome tethering (CORVET) and Golgi-associated retrograde protein (GARP) using this approach. Our findings facilitate further in vitro biochemical characterization and functional studies of MTCs and provide a useful guide for the preparation of other heterogenic multisubunit complexes.
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Affiliation(s)
- Qiushuang Ji
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Ke Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Na Cao
- School of Life Sciences, Tsinghua University, Beijing, 100084, China.
| | - Xiaoyu You
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Shuaihua Cao
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Mengya Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Jiatian Guo
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Hongwei Wang
- School of Life Sciences, Tsinghua University, Beijing, 100084, China.
| | - Kunrong Mei
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
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Li L, Yang L, Fan D, Jin J, Xiaokelaiti S, He Y, Hao Q. Genome-wide analysis of ALDH gene family in jujube and identification of ZjALDH3F3 for its important role in high-temperature tolerance. Plant Physiol Biochem 2023; 205:108196. [PMID: 38000236 DOI: 10.1016/j.plaphy.2023.108196] [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: 08/29/2023] [Revised: 11/05/2023] [Accepted: 11/12/2023] [Indexed: 11/26/2023]
Abstract
Aldehyde dehydrogenases (ALDHs) are NAD(P)-dependent enzymes that oxidize aliphatic and aromatic aldehydes. They play crucial roles in various biological processes and plant responses to stress. The impact of high temperatures on jujube quality and yield has been well documented. Nevertheless, the involvement of ALDHs in the response to heat stress remains poorly understood. This study aimed to identify ZjALDHs in the jujube genome (Ziziphus jujuba var. spinosa) and conducted in silico analyses. Phylogenetic analyses indicated that ALDHs in plants, including jujube, can be divided into ten families, and members from the same family share conserved gene and protein structures. Quantitative real-time PCR (qRT-PCR) and β-glucuronidase (GUS) histochemical staining were used to analyze the expression patterns of ZjALDHs in response to elevated temperatures. We identified a ZjALDH (ZjALDH3F3) gene displaying a significant upregulation and down-regulation, respectively in heat-resistant (HR) and heat-sensitive (HS) jujube in response to heat treatments. Such specific responses are probably attributed to the different heat-responsive cis-elements of ZjALDH3F3 in HR and HS jujubes. ZjALDH3F3 over-expressed in tobacco increased heat tolerance, as evidenced by the reduced accumulation of reactive oxygen species (ROS) and elevated activity of antioxidant enzymes. The qRT-PCR results indicated that the expression of antioxidant enzymes, abscisic acid (ABA), and stress-responsive genes was enhanced in transgenic tobacco. This study sheds novel light on the function of ZjALDHs in heat resistance of jujube.
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Affiliation(s)
- Lili Li
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Scientific Observing and Experimental Station of Pomology (Xinjiang), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China
| | - Lei Yang
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Scientific Observing and Experimental Station of Pomology (Xinjiang), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China
| | - Dingyu Fan
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Scientific Observing and Experimental Station of Pomology (Xinjiang), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China
| | - Juan Jin
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Scientific Observing and Experimental Station of Pomology (Xinjiang), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China
| | - Subina Xiaokelaiti
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Scientific Observing and Experimental Station of Pomology (Xinjiang), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China
| | - Yanjun He
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
| | - Qing Hao
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Scientific Observing and Experimental Station of Pomology (Xinjiang), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China.
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Zhou S, Tian O, Li W, Li J, Li W, Han F. Functional study of Cygb in the immune response to Vibrio harveyi disease in yellow drum (Nibea albiflora). Fish Shellfish Immunol 2023; 143:109217. [PMID: 37951319 DOI: 10.1016/j.fsi.2023.109217] [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: 08/19/2023] [Revised: 10/23/2023] [Accepted: 11/06/2023] [Indexed: 11/13/2023]
Abstract
Cytoglobin (Cygb) is a 21-kDa heme-protein that belongs to the globin superfamily and is expressed in vertebrate tissues. It can participate in the oxidative stress response in organisms through the porphyrin ring. Previous studies have shown that this protein, also known as YdCygb, has potential immune abilities in the infection of Vibrio harveyi in yellow drum (Nibea albiflora). In this study, we report the role of Cygb in the immune response of teleost fish for the first time. Quantitative RT-PCR analysis indicated that YdCygb was highly expressed in the liver and intestine of yellow drum, and its expression can be upregulated by pathogenic attack. The cellular distribution of YdCygb-EGFP proteins was observed in cell membrane, cytoplasm, and nucleus in the kidney cells of N. albiflora. Furthermore, a comparative transcriptome analysis between the YdCygb overexpression group and control vector group identified 28 differentially expressed genes (DEGs). The analysis showed that ANPEP, CLDN5, ORM1/2, SERPINC1 and HPN and ITGAM might play important regulatory roles to Cygb in fish. Notably, using GST-pull down technology, we identified 3-phosphoglyceraldehyde dehydrogenase and intermediate filament protein as direct interactors with YdCygb, playing a role against V. harveyi. The molecular and functional characterization of YdCygb provides better understanding of the genetic basis of disease resistance traits in yellow drum and sheds new light on the functioning of Cygb and its potential regulatory signaling pathway as well.
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Affiliation(s)
- Shihao Zhou
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen, China
| | - Oianqian Tian
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen, China
| | - Wanbo Li
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen, China
| | - Jiacheng Li
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen, China
| | - Wenjing Li
- Jiangsu Haorun Biological Industry Group Co., Ltd, Taizhou, Jiangsu, China.
| | - Fang Han
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen, China.
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21
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Kirimoto Y, Yamano-Adachi N, Koga Y, Omasa T. Effect of co- overexpression of the cargo receptor ERGIC-53/MCFD2 on antibody production and intracellular IgG secretion in recombinant Chinese hamster ovary cells. J Biosci Bioeng 2023; 136:400-406. [PMID: 35963666 DOI: 10.1016/j.jbiosc.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/30/2022] [Accepted: 07/04/2022] [Indexed: 11/26/2022]
Abstract
Therapeutic antibodies are attractive biopharmaceuticals because of their high therapeutic effects, fewer side effects, and prolonged half-life in the blood. Chinese hamster ovary (CHO) cells are the most widely used host cell lines to produce therapeutic antibodies in industries. High-producing recombinant CHO cells can be established via overexpression of endogenous proteins. In this study, we focused on the intracellular traffic of an antibody-producing CHO cell line, CHO-HcD6. Assembled antibodies were accumulated in the endoplasmic reticulum (ER) in the cell. We hypothesized that the accumulation was due to the insufficient number of cargo receptors in the cell and focused on a cargo receptor, the ERGIC-53-MCFD2 complex, which transports expressed proteins from the ER to the Golgi apparatus. Overexpression of the cargo receptor transport was expected to improve antibody production. Exogenous ERGIC-53 and MCFD2 were transfected into CHO-HcD6 cells, and overexpressing CHO-HcD6 cells were constructed. As a result of overexpression, antibody productivity increased in batch cultivation. However, the chase assay results and immunofluorescence microscopic observations revealed intracellular IgG accumulation in the overexpressing cells. These results suggest that overexpression of cargo receptors not only promoted extracellular secretion but also enhanced the retention of intracellular antibodies.
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Affiliation(s)
- Yutaka Kirimoto
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Noriko Yamano-Adachi
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan; Manufacturing Technology Association of Biologics, 7-1-49 Minatojima-minami, Kobe, Hyogo 650-0047, Japan; Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yuichi Koga
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan; Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takeshi Omasa
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan; Manufacturing Technology Association of Biologics, 7-1-49 Minatojima-minami, Kobe, Hyogo 650-0047, Japan; Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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22
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Li JW, Zhou P, Deng YJ, Hu ZH, Li XH, Chen X, Xiong AS, Zhuang J. Overexpressing CsPSY1 Gene of Tea Plant, Encoding a Phytoene Synthase, Improves α-Carotene and β-Carotene Contents in Carrot. Mol Biotechnol 2023:10.1007/s12033-023-00942-5. [PMID: 37897587 DOI: 10.1007/s12033-023-00942-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/09/2023] [Indexed: 10/30/2023]
Abstract
Tea plants (Camellia sinensis (L.) O. Kuntze) belong to Theaceae family, in the section Thea. Tea plants are widely distributed in subtropical and tropical regions in the word. α-carotene and β-carotene in the tea leaves belong to carotenoids, which are associated with the aroma and color of the tea. Phytoene synthase (PSY) is a rate-limiting enzyme in carotenoids biosynthesis. We identified three CsPSY genes in 'Shuchazao', named CsPSY1, CsPSY2, and CsPSY3. Structural analysis of three CsPSY genes showed that CsPSY1 had a longer intro structure. The cis-acting elements of CsPSYs promoter were mainly associated with light-responsiveness, abiotic stress-responsiveness, and hormone-responsiveness. CsPSY1 exhibited expression in all tissues of the tea plants, whereas CsPSY2 and CsPSY3 were trace expression levels in all tissues. The positive expression of CsPSY1 under hormonal and abiotic stresses suggested its role in plant development and defense responses. The amino acid sequence of CsPSY1 was highly conserved in eight tea cultivars. The recombinant vector pCAMBIA1301-CsPSY1 was constructed to stabilize the overexpression of CsPSY1 in carrot. The contents of α-carotene and β-carotene in transgenic carrot callus were significantly increased. This study provides a foundational basis for further research on the function of CsPSYs and carotenoids accumulation in tea plants.
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Affiliation(s)
- Jing-Wen Li
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ping Zhou
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuan-Jie Deng
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhi-Hang Hu
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xing-Hui Li
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xuan Chen
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Jing Zhuang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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23
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Yang P, Li F, Tang J, Tian Q, Zheng Z. ET-1 receptor type B (ETBR) overexpression associated with ICAM-1 downregulation leads to inflammatory attenuation in experimental autoimmune myocarditis. PeerJ 2023; 11:e16320. [PMID: 37901475 PMCID: PMC10607261 DOI: 10.7717/peerj.16320] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/29/2023] [Indexed: 10/31/2023] Open
Abstract
Background An experimental autoimmune myocarditis rat model was established by subcutaneous injection of porcine myocardial myosin (PCM). The effect of ET-1 receptor type B (ETBR) overexpression on autoimmune myocarditis was observed via tail vein injection of ETBR overexpression lentivirus in rats. We further investigated the mechanisms involved in the regulation of autoimmune myocarditis by ETBR overexpression. Methods Six rats were randomly selected from 24 male Lewis rats as the NC group, and the remaining 18 rats were injected with PCM on Day 0 and Day 7, to establish the experimental autoimmune myocarditis (EAM) rat model. The 18 rats initially immunized were randomly divided into three groups: the EAM group, ETBR-oe group, and GFP group. On Day 21 after the initial immunization of rats, cardiac echocardiography and serum brain natriuretic peptide (BNP) analysis were performed to evaluate cardiac function, myocardial tissue HE staining was performed to assess myocardial tissue inflammatory infiltration and the myocarditis score, and mRNA expression of IFN-γ, IL-12, and IL-17 was detected by qRT-PCR. Subsequently, immunohistochemical analysis was performed to detect the localization and expression of the ETBR and ICAM-1 proteins, and the expression of ETBR and ICAM-1 was verified by qRT-PCR and western blotting methods. Results On Day 21 after initial immunization, left ventricular end-diastolic diameter (LVEDd), left ventricular end-systolic diameter (LVEDs), and serum BNP concentrations increased in the hearts of rats in the EAM group compared with the NC group (P < 0.01), and ejection fraction (EF) and fractional shortening (FS) decreased compared with those of the normal control (NC) group (P < 0.01). LVEDd, LVEDs, and serum BNP concentrations decreased in the ETBR-oe group compared with the EAM group, while EF and FS increased significantly (P < 0.01). HE staining showed that a large number of inflammatory cell infiltrates, mainly lymphocytes, were observed in the EAM group, and the myocarditis score was significantly higher than that of the NC group (P < 0.01). Compared with that of the EAM group, myocardial tissue inflammatory cell infiltration was significantly reduced in the ETBR-oe group, and the myocarditis scores were significantly lower (P < 0.01). The mRNAs of the inflammatory factors IFN-γ, IL-12 and IL-17 in myocardial tissue of rats in the EAM group exhibited elevated levels compared with those of the NC group (P < 0.01) while the mRNAs of IFN-γ, IL-12 and IL-17 were significantly decreased in the ETBR-oe group compared with the EAM group (P < 0.01). Immunohistochemistry showed that the staining depth of ETBR protein in myocardial tissue was greater in the EAM group than in the NC group, and significantly greater in the ETBR-oe group than in the EAM group, while the staining depth of ICAM-1 was significantly greater in the EAM group than in the NC group, and significantly lower in the ETBR-oe group than in the EAM group. The ICAM-1 expression level was significantly higher in the EAM group than in the NC group (P < 0.01), and was significantly lower in the ETBR-oe groupthan in the EAM group (P < 0.01).
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Affiliation(s)
- Peng Yang
- Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Fangfei Li
- Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jiangfeng Tang
- Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qingshan Tian
- Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhenzhong Zheng
- Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Cardiology, Shenzhen Third People's Hospital, Shenzhen, Guangdong, China
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Wang Y, Umer MJ, Cai X, Yang M, Hou Y, Xu Y, Batool R, Mehari TG, Zheng J, Wang Y, Wang H, Li Z, Zhou Z, Liu F. Dynamic characteristics and functional analysis provide new insights into the role of GauERF105 for resistance against Verticillium dahliae in cotton. BMC Plant Biol 2023; 23:501. [PMID: 37848871 PMCID: PMC10583443 DOI: 10.1186/s12870-023-04455-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] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/12/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND The cotton industry suffers significant yield losses annually due to Verticillium wilt, which is considered the most destructive disease affecting the crop. However, the precise mechanisms behind this disease in cotton remain largely unexplored. METHODS Our approach involved utilizing transcriptome data from G. australe which was exposed to Verticillium dahliae infection. From this data, we identified ethylene-responsive factors and further investigated their potential role in resistance through functional validations via Virus-induced gene silencing (VIGS) in cotton and overexpression in Arabidopsis. RESULTS A total of 23 ethylene response factors (ERFs) were identified and their expression was analyzed at different time intervals (24 h, 48 h, and 72 h post-inoculation). Among them, GauERF105 was selected based on qRT-PCR expression analysis for further investigation. To demonstrate the significance of GauERF105, VIGS was utilized, revealing that suppressing GauERF105 leads to more severe infections in cotton plants compared to the wild-type. Additionally, the silenced plants exhibited reduced lignin deposition in the stems compared to the WT plants, indicating that the silencing of GauERF105 also impacts lignin content. The overexpression of GauERF105 in Arabidopsis confirmed its pivotal role in conferring resistance against Verticillium dahliae infection. Our results suggest that WT possesses higher levels of the oxidative stress markers MDA and H2O2 as compared to the overexpressed lines. In contrast, the activities of the antioxidant enzymes SOD and POD were higher in the overexpressed lines compared to the WT. Furthermore, DAB and trypan staining of the overexpressed lines suggested a greater impact of the disease in the wild-type compared to the transgenic lines. CONCLUSIONS Our findings provide confirmation that GauERF105 is a crucial candidate in the defense mechanism of cotton against Verticillium dahliae invasion, and plays a pivotal role in this process. These results have the potential to facilitate the development of germplasm resistance in cotton.
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Affiliation(s)
- Yanqing Wang
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
- College of Agronomy, Hebei Agricultural University/North China Key Laboratory for Crop Germplasm Resources of Ministry of Education, Baoding, 071001, Hebei, China
| | - Muhammad Jawad Umer
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
| | - Xiaoyan Cai
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
- National Nanfan Research Institute of Chinese Academy of Agriculture Sciences, Sanya, 572025, China
| | - Mengying Yang
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Yuqing Hou
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
| | - Yanchao Xu
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
| | - Raufa Batool
- State Key Laboratory for Biology of Plant Diseases and Insect Pest, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100000, China
| | - Teame Gereziher Mehari
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
- Ethiopian Institute of Agricultural Research, Mekhoni Agricultural Research Center, P.O BOX 47, Mekhoni, Tigray, Ethiopia
| | - Jie Zheng
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
| | - Yuhong Wang
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
| | - Heng Wang
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
| | - Zhikun Li
- College of Agronomy, Hebei Agricultural University/North China Key Laboratory for Crop Germplasm Resources of Ministry of Education, Baoding, 071001, Hebei, China
| | - Zhongli Zhou
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China.
| | - Fang Liu
- National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China.
- National Nanfan Research Institute of Chinese Academy of Agriculture Sciences, Sanya, 572025, China.
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
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Yu X, Zhao Y, Wang Y, Zou Z, Li F. Maize ZmHSP90 plays a role in acclimation to salt stress. PeerJ 2023; 11:e15819. [PMID: 37810777 PMCID: PMC10557940 DOI: 10.7717/peerj.15819] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 07/10/2023] [Indexed: 10/10/2023] Open
Abstract
Background Maize is sensitive to salt stress, especially during the germination and seedling stages. Methods We conducted germination experiments on 60 maize materials under salt stress, and screened out the most salt-tolerant and salt-sensitive varieties based on germination indicators. Afterwards, transcriptome analysis was performed to screen for key regulators in the plumule and flag leaf at the germination and seedling stages, respectively. Following that, transgenic tobacco was developed to expose the roles and mechanisms of the candidate genes, enabling a deeper investigation of their functions. Results Out of the 60 inbred lines of maize, "975-12" exhibits the highest level of salt tolerance, while "GEMS64" displays the lowest. The application of salt stress resulted in a significant increase in the levels of antioxidant enzymes in both "975-12" and "GEMS64". ABA signal transduction and jasmonic acid pathways were the pathways that mainly affected by salt stress. In addition, a significant finding has been made indicating that when exposed to high levels of salt stress, the expression of ZmHSP90 in '975-12' increased while in 'GEMS64' decreased. Furthermore, in tobacco plants overexpressing ZmHSP90, there was an increase in antioxidant enzyme activity associated with salt tolerance. ZmHSP90 enhanced the expression levels of NtSOS1, NtHKT1, and NtNHX1 as compared to those in the salt treatment, causing the maintenance of Na+ and K+ homeostasis, suggesting that high expression of ZmHSP90 was conducive to regulate Na+ transporters to maintain K+/Na+ balanced in tobacco.
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Affiliation(s)
- Xinyan Yu
- Shenyang Agricultural University, Shenyang, China
- Win-all High-Tech Seed Company Limited, Hefei, China
| | - Yanxin Zhao
- Maize Research Center of Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing, China
| | - Yun Wang
- Shenyang Agricultural University, Shenyang, China
| | - Zhiqing Zou
- Win-all High-Tech Seed Company Limited, Hefei, China
| | - Fenghai Li
- Shenyang Agricultural University, Shenyang, China
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Anand S, Lal M, Bhardwaj E, Shukla R, Pokhriyal E, Jain A, Sri T, Srivastava PS, Singh A, Das S. MIR159 regulates multiple aspects of stamen and carpel development and requires dissection and delimitation of differential downstream regulatory network for manipulating fertility traits. Physiol Mol Biol Plants 2023; 29:1437-1456. [PMID: 38076769 PMCID: PMC10709278 DOI: 10.1007/s12298-023-01377-7] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/21/2023] [Accepted: 10/18/2023] [Indexed: 12/17/2023]
Abstract
Unravelling genetic networks regulating developmental programs are key to devising and implementing genomics assisted trait modification strategies. It is crucial to understand the role of small RNAs, and the basis of their ability to modify traits. MIR159 has been previously reported to cause defects in anther development in Arabidopsis; however, the complete spectrum and basis of the defects remained unclear. The present study was therefore undertaken to comprehensively investigate the role of miR159 from Brassica juncea in modulating vegetative and reproductive traits. Owing to the polyploid nature of Brassica, paralogous and homeologous copies of MIR159A, MIR159B, and, MIR159C were identified and analysis of the precursor uncovered extensive structural and sequence variation. The MIR159 locus with mature miR159 with perfect target complimentarily with MYB65, was cloned from Brassica juncea var. Varuna for functional characterization by generating constitutively over-expressing lines in Arabidopsis thaliana Col-0. Apart from statistically significant difference in multiple vegetative traits, drastic differences were observed in stamen and pistil. Over-expression of miR159a led to shortening of filament length and loss of tetradynamous condition. Anthers were apiculate, with improper lobe formation, and unsynchronized cellular growth between connective tissue and another lobe development. Analysis revealed arrested meiosis/cytokinesis in microspores, and altered lignin deposition pattern in endothecial walls thus affecting anther dehiscence. In the gynoecium, flaccid, dry stigmatic papillae, and large embryo sac in the female gametophyte was observed. Over-expression of miR159a thus severely affected pollination and seed-set. Analysis of the transcriptome data revealed components of regulatory networks of anther and carpel developmental pathway, and lignin metabolism that are affected. Expression analysis allowed us to position the miR159a-MYB65 module in the genetic network of stamen development, involved in pollen-grain maturation; in GA-mediated regulation of stamen development, and in lignin metabolism. The study, on one hand indicates role of miR159a-MYB65 in regulating multiple aspects of reproductive organ development that can be manipulated for trait modification, but also raises several unaddressed questions such as relationship between miR159a and male-meiosis, miR159a and filament elongation for future investigations. Accession numbers: KC204951-KC204960. Project number PRJNA1035268. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01377-7.
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Affiliation(s)
- Saurabh Anand
- Department of Botany, University of Delhi, Delhi, 110 007 India
| | - Mukund Lal
- Department of Botany, University of Delhi, Delhi, 110 007 India
| | - Ekta Bhardwaj
- Department of Botany, University of Delhi, Delhi, 110 007 India
| | - Richa Shukla
- Department of Botany, University of Delhi, Delhi, 110 007 India
| | - Ekta Pokhriyal
- Department of Botany, University of Delhi, Delhi, 110 007 India
| | - Aditi Jain
- Department of Botany, University of Delhi, Delhi, 110 007 India
| | - Tanu Sri
- TERI School of Advanced Studies, Plot No. 10, Institutional Area, Vasant Kunj, New Delhi, 110 070 India
| | - P. S. Srivastava
- Department of Biotechnology, Jamia Hamdard, Hamdard Nagar, New Delhi, Delhi 110 062 India
| | - Anandita Singh
- TERI School of Advanced Studies, Plot No. 10, Institutional Area, Vasant Kunj, New Delhi, 110 070 India
| | - Sandip Das
- Department of Botany, University of Delhi, Delhi, 110 007 India
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Anderson S, Bartow BB, Siegal GP, Huang X, Wei S. The dynamics of HER2-low expression during breast cancer progression. Breast Cancer Res Treat 2023; 201:437-446. [PMID: 37433993 DOI: 10.1007/s10549-023-07020-z] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/20/2023] [Indexed: 07/13/2023]
Abstract
PURPOSE Low HER2 expression is emerging as an actionable target for the treatment of breast cancer (BC) with the antibody drug conjugate Trastuzumab deruxtecan. The aim of the study was to characterize the dynamics of HER2 expression during BC progression. METHODS We evaluated the evolution of HER2 expression in 171 paired primary and metastatic BCs (pBCs/mBCs) by including the HER2-low category. RESULTS The proportions of HER2-low cases were 25.7% in pBCs and 23.4% in mBCs, respectively, while those of HER2-0 cases were 35.1% and 42.7%, respectively. The overall conversion rate between HER2-0 and HER2-low was 31.7%. HER2-low switching to HER2-0 was more frequent than the reverse (43.2% vs. 23.3%; P = 0.03). Two (3.3%) and 9 (20.5%) cases of pBCs with a HER2-0 and a HER2-low status, respectively, were converted to HER2-positive mBCs. In contrast, 10 (14.9%) HER2-positive pBCs were converted to HER2-0 and an identical number to HER2-low mBCs, respectively, significantly higher than that when compared to the HER2-0 to HER2-positive (P = 0.03), but not HER2-low to HER2-positive conversion. No significant difference was found when comparing the conversion rates among the common organs of relapse. Of the 17 patients with multiorgan metastases, 41.2% had discordance among the different sites of relapse. CONCLUSIONS HER2-low BCs constitute a heterogeneous group of tumors. Low HER2 expression is dynamic, with significant discordance between primary tumors and advanced disease as well as the distant sites of relapse. Repeat biomarker studies from advanced disease are warranted in making appropriate treatment plans in the pursuit of precision medicine.
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Affiliation(s)
- Sarah Anderson
- Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Brooke Baxter Bartow
- Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Gene P Siegal
- Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Xiao Huang
- Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Shi Wei
- Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA.
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, 4000 Cambridge Street, Mail Stop 3067, Kansas City, KS, 66160, USA.
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Tafere Abrha G, Li Q, Kuang X, Xiao D, Ayepa E, Wu J, Chen H, Zhang Z, Liu Y, Yu X, Xiang Q, Ma M. Phenotypic and comparative transcriptomics analysis of RDS1 overexpression reveal tolerance of Saccharomyces cerevisiae to furfural. J Biosci Bioeng 2023; 136:270-277. [PMID: 37544800 DOI: 10.1016/j.jbiosc.2023.06.012] [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] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 06/18/2023] [Accepted: 06/28/2023] [Indexed: 08/08/2023]
Abstract
The yeast Saccharomyces cerevisiae able to tolerate lignocellulose-derived inhibitors like furfural. Yeast strain performance tolerance has been measured by the length of the lag phase for cell growth in response to the furfural inhibitor challenge. The aims of this work were to obtain RDS1 yeast tolerant strain against furfural through overexpression using a method of in vivo homologous recombination. Here, we report that the overexpressing RDS1 recovered more rapidly and displayed a lag phase at about 12 h than its parental strain. Overexpressing RDS1 strain encodes a novel aldehyde reductase with catalytic function for reduction of furfural with NAD(P)H as the co-factor. It displayed the highest specific activity (24.8 U/mg) for furfural reduction using NADH as a cofactor. Fluorescence microscopy revealed improved accumulation of reactive oxygen species resistance to the damaging effects of inhibitor in contrast to the parental. Comparative transcriptomics revealed key genes potentially associated with stress responses to the furfural inhibitor, including specific and multiple functions involving defensive reduction-oxidation reaction process and cell wall response. A significant change in expression level of log2 (fold change >1) was displayed for RDS1 gene in the recombinant strain, which demonstrated that the introduction of RDS1 overexpression promoted the expression level. Such signature expressions differentiated tolerance phenotypes of RDS1 from the innate stress response of its parental strain. Overexpression of the RDS1 gene involving diversified functional categories is accountable for stress tolerance in yeast S. cerevisiae to survive and adapt the furfural during the lag phase.
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Affiliation(s)
- Getachew Tafere Abrha
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Qian Li
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Xiaolin Kuang
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Difan Xiao
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Ellen Ayepa
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Jinjian Wu
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Huan Chen
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Zhengyue Zhang
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Yina Liu
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Xiumei Yu
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Quanju Xiang
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China
| | - Menggen Ma
- Department of Applied Microbiology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China; Institute of Resources and Geographic Information Technology, College of Resources, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan 611130, PR China.
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Dutta TK, Vashisth N, Ray S, Phani V, Chinnusamy V, Sirohi A. Functional analysis of a susceptibility gene (HIPP27) in the Arabidopsis thaliana-Meloidogyne incognita pathosystem by using a genome editing strategy. BMC Plant Biol 2023; 23:390. [PMID: 37563544 PMCID: PMC10416466 DOI: 10.1186/s12870-023-04401-w] [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: 02/09/2023] [Accepted: 08/04/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Plant-parasitic root-knot nematodes cause immense yield declines in crop plants that ultimately obviate global food security. They maintain an intimate relationship with their host plants and hijack the host metabolic machinery to their own advantage. The existing resistance breeding strategies utilizing RNAi and resistance (R) genes might not be particularly effective. Alternatively, knocking out the susceptibility (S) genes in crop plants appears to be a feasible approach, as the induced mutations in S genes are likely to be long-lasting and may confer broad-spectrum resistance. This could be facilitated by the use of CRISPR/Cas9-based genome editing technology that precisely edits the gene of interest using customizable guide RNAs (gRNAs) and Cas9 endonuclease. RESULTS Initially, we characterized the nematode-responsive S gene HIPP27 from Arabidopsis thaliana by generating HIPP27 overexpression lines, which were inoculated with Meloidogyne incognita. Next, two gRNAs (corresponding to the HIPP27 gene) were artificially synthesized using laboratory protocols, sequentially cloned into a Cas9 editor plasmid, mobilized into Agrobacterium tumefaciens strain GV3101, and transformed into Arabidopsis plants using the floral dip method. Apart from 1-3 bp deletions and 1 bp insertions adjacent to the PAM site, a long deletion of approximately 161 bp was documented in the T0 generation. Phenotypic analysis of homozygous, 'transgene-free' T2 plants revealed reduced nematode infection compared to wild-type plants. Additionally, no growth impairment was observed in gene-edited plants. CONCLUSION Our results suggest that the loss of function of HIPP27 in A. thaliana by CRISPR/Cas9-induced mutagenesis can improve host resistance to M. incognita.
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Affiliation(s)
- Tushar K Dutta
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - Neeraj Vashisth
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Soham Ray
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Victor Phani
- Department of Agricultural Entomology, College of Agriculture, Uttar Banga Krishi Viswavidyalaya, Dakshin Dinajpur, Balurghat, West Bengal, 733133, India
| | - Viswanathan Chinnusamy
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Anil Sirohi
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
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Tang G, Man H, Wang J, Zou J, Zhao J, Han J. An oxidoreductase gene CtnD involved in citrinin biosynthesis in Monascus purpureus verified by CRISPR/Cas9 gene editing and overexpression. Mycotoxin Res 2023; 39:247-259. [PMID: 37269452 DOI: 10.1007/s12550-023-00491-5] [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: 12/07/2022] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/05/2023]
Abstract
Monascus produces a kind of mycotoxin, citrinin, whose synthetic pathway is still not entirely clear. The function of CtnD, a putative oxidoreductase located upstream of pksCT in the citrinin gene cluster, has not been reported. In this study, the CtnD overexpressed strain and the Cas9 constitutively expressed chassis strain were obtained by genetic transformation mediated by Agrobacterium tumefaciens. The pyrG and CtnD double gene-edited strains were then obtained by transforming the protoplasts of the Cas9 chassis strain with in vitro sgRNAs. The results showed that overexpression of CtnD resulted in significant increases in citrinin content of more than 31.7% and 67.7% in the mycelium and fermented broth, respectively. The edited CtnD caused citrinin levels to be reduced by more than 91% in the mycelium and 98% in the fermented broth, respectively. It was shown that CtnD is a key enzyme involved in citrinin biosynthesis. RNA-Seq and RT-qPCR showed that the overexpression of CtnD had no significant effect on the expression of CtnA, CtnB, CtnE, and CtnF but led to distinct changes in the expression of acyl-CoA thioesterase and two MFS transporters, which may play an unknown role in citrinin metabolism. This study is the first to report the important function of CtnD in M. purpureus through a combination of CRISPR/Cas9 editing and overexpression.
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Affiliation(s)
- Guangfu Tang
- Key Lab of Pharmacognostics of Guizhou Province, College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550002, China
| | - Haiqiao Man
- Key Lab of Pharmacognostics of Guizhou Province, College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550002, China
| | - Jiao Wang
- Key Lab of Pharmacognostics of Guizhou Province, College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550002, China
| | - Jie Zou
- Key Lab of Pharmacognostics of Guizhou Province, College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550002, China
| | - Jiehong Zhao
- Key Lab of Pharmacognostics of Guizhou Province, College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550002, China.
| | - Jie Han
- Key Lab of Pharmacognostics of Guizhou Province, College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550002, China.
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Han H, Dong L, Zhang W, Liao Y, Wang L, Wang Q, Ye J, Xu F. Ginkgo biloba GbbZIP08 transcription factor is involved in the regulation of flavonoid biosynthesis. J Plant Physiol 2023; 287:154054. [PMID: 37487356 DOI: 10.1016/j.jplph.2023.154054] [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: 03/14/2023] [Revised: 07/12/2023] [Accepted: 07/12/2023] [Indexed: 07/26/2023]
Abstract
Ginkgo biloba is the oldest relict plant on Earth and an economic plant resource derived from China. Flavonoids extracted from G. biloba are beneficial to the prevention and treatment of cardiovascular and cerebrovascular diseases. Basic leucine zipper (bZIP) transcription factors (TFs) have been recognized to play important roles in plant secondary metabolism. In this study, GbbZIP08 was isolated and characterized. It encodes a protein containing 154 amino acids, which belongs to hypocotyl 5 in group H of the bZIP family. Tobacco transient expression assay indicated that GbbZIP08 was localized in the plant nucleus. GbbZIP08 overexpression showed that the contents of total flavonoids, kaempferol, and anthocyanin in transgenic tobacco were significantly higher than those in the wild type. Transcriptome sequencing analysis revealed significant upregulation of structural genes in the flavonoid biosynthesis pathway. In addition, phytohormone signal transduction pathways, such as the abscisic acid, salicylic acid, auxin, and jasmonic acid pathways, were enriched with a large number of differentially expressed genes. TFs such as MYB, AP2, WRKY, NAC, bZIP, and bHLH, were also differentially expressed. The above results indicated that GbbZIP08 overexpression promoted flavonoid accumulation and increased the transcription levels of flavonoid-synthesis-related genes in plants.
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Affiliation(s)
- Huan Han
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Liwei Dong
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Weiwei Zhang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Yongling Liao
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Lina Wang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Qijian Wang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Jiabao Ye
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China.
| | - Feng Xu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, Hubei, China.
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Zhang X, Li J, Li M, Zhang S, Song S, Wang W, Wang S, Chang J, Xia Z, Zhang S, Jia H. NtHSP70-8b positively regulates heat tolerance and seed size in Nicotiana tabacum. Plant Physiol Biochem 2023; 201:107901. [PMID: 37494824 DOI: 10.1016/j.plaphy.2023.107901] [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: 04/18/2023] [Revised: 07/02/2023] [Accepted: 07/20/2023] [Indexed: 07/28/2023]
Abstract
Heat stress considerably restricts the geographical distribution of crops and affects their growth, development, and productivity. HSP70 plays a critical regulatory role in plant growth response to heat stress. However, the mechanisms of this regulatory remain poorly understood. Here, an HSP70 gene, NtHSP70-8b, which is involved in the heat stress response of tobacco, was cloned and identified. The expression of NtHSP70-8b was induced by exogenous abscisic acid (ABA) treatment and abiotic stress, including heat, drought, and salt. Notably, high NtHSP70-8b expression occurred under heat stress conditions, which was consistent with the β-glucuronidase histochemical analysis. Moreover, NtHSP70-8b overexpression markedly enhanced heat stress tolerance by changing the stomatal conductance and antioxidant capacity in tobacco leaves. qRT-PCR showed that the expression levels of ABA synthesis and response genes (NtNCED3 and NtAREB), stress defence genes (NtERD10C and NtLEA5), and other HSP genes (NtHSP90 and NtHSP26a) in NtHSP70-8b-overexpressing tobacco were high under heat stress. The interaction of NtHSP70-8b with NtHSP26a was further confirmed by a luciferase complementation imaging assay. In contrast, NtHSP70-8b knockout mutants showed significantly reduced antioxidant capacity compared to the wild type (WT) under heat stress conditions, suggesting that NtHSP70-8b acts as a positive regulator of heat stress in tobacco. Moreover, NtHSP70-8b overexpression increased the 1000-seed weight. Taken together, NtHSP70-8b is involved in the heat stress response, and NtHSP70-8b overexpression contributed to enhanced tolerance to heat stress, which is thus an essential gene with potential application value for developing heat stress-tolerant crops.
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Affiliation(s)
- Xiaoquan Zhang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Juxu Li
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Man Li
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Shuaitao Zhang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Shanshan Song
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Weimin Wang
- China Tobacco Zhejiang Industrial Co., Ltd, Hangzhou, 310024, China
| | - Shuai Wang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Jianbo Chang
- Sanmenxia Branch of Henan Provincial Tobacco Corporation, Sanmenxia, 472000, China
| | - Zongliang Xia
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Songtao Zhang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Hongfang Jia
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, China.
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Cao S, Zou Y, Zhang S, Zhang H, Guan Y, Liu L, Ji M. Investigation of resistance mechanisms to fomesafen in Ipomoea nil from China. Pestic Biochem Physiol 2023; 194:105487. [PMID: 37532349 DOI: 10.1016/j.pestbp.2023.105487] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 08/04/2023]
Abstract
Recently, the herbicide fomesafen has frequently failed to control the troublesome weed Ipomoea nil in soybean fields in Liaoning Province, China. Hence, we collected 10 suspected resistant populations and evaluated their sensitivity to fomesafen. The results revealed various degrees of Ipomoea nil resistance to fomesafen, with a resistance index of 2.88 to 22.43; the highest value occurred in the LN3 population. Therefore, the mechanisms of the resistance in LN3 to fomesafen were explored. After fomesafen treatment, the expression levels of InPPX1 and InPPX2 genes were 4.19- and 9.29-fold higher, respectively, in LN3 than those in the susceptible (LN1) population. However, mutations and copy number variations were not detected between the two populations. Additionally, malathion pretreatment reduced the dose necessary to halve the growth rate of LN3 by 58%. Liquid chromatography with tandem mass spectrometry demonstrated that metabolism of fomesafen was significantly suppressed by malathion. Moreover, LN3 displayed increased reactive oxygen species scavenging capacity, which was represented by higher superoxide dismutase and peroxidase activities after fomesafen application than those in LN1. An orthogonal partial least squares-discriminant analysis revealed that the high resistance in LN3 could be attributed mainly to enhanced metabolism. Fortunately, the fomesafen-resistant I. nil remained sensitive to 2,4-D-ethylhexylester and bentazon, providing methods for its control.
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Affiliation(s)
- Shihan Cao
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, People's Republic of China
| | - Yize Zou
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, People's Republic of China
| | - Shuai Zhang
- National Agro-technology Extension and Service Center, No. 20, Maizidian street, Chaoyang district, Beijing City 100125, People's Republic of China.
| | - Hongtao Zhang
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, People's Republic of China
| | - Yidi Guan
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, People's Republic of China
| | - Liru Liu
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, People's Republic of China
| | - Mingshan Ji
- College of Plant Protection, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang City 110866, People's Republic of China.
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Kong H, Hou M, Ma B, Xie Z, Wang J, Zhu X. Calcium-dependent protein kinase GhCDPK4 plays a role in drought and abscisic acid stress responses. Plant Sci 2023; 332:111704. [PMID: 37037298 DOI: 10.1016/j.plantsci.2023.111704] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 04/02/2023] [Accepted: 04/05/2023] [Indexed: 05/27/2023]
Abstract
Drought is an important factor limiting the yield and quality of cotton. In the present study, the gene encoding the cotton calcium-dependent protein kinase GhCDPK4 was identified and characterized in the transcriptome of cotton under PEG-induced drought stress. In RT-qPCR experiments, GhCDPK4 expression was found to be up-regulated under drought and abscisic acid (ABA) stress. Under drought conditions, heterologous overexpression of GhCDPK4 in tobacco showed a better phenotypic status, higher antioxidant enzyme activity, and lower relative electrolyte leakage (REL) and malondialdehyde (MDA) content. Meanwhile, ghcdpk4-silenced cotton plants, which were extremely sensitive to drought, exhibited higher levels of O2-,H2O2, and MDA contents compared to the control. Meanwhile, silenced lines showed impaired stomatal closure under drought stress, resulting in increased water loss from transpiration in silenced lines. GhCDPK4 expression was induced by ABA, and there are five ABA-responsive elements in its promoter. and C2-DOMAIN ABA-RELATED 4(CAR4, Gh_D09G1653) were found to interact and be co-expressed in the GhCDPK4 interaction network. Therefore, GhCDPK4 may reduce the extent of water loss and oxidative damage in cotton under drought by positively regulating ABA-controlled stomatal closure and reactive oxygen species (ROS) scavenging systems. This study demonstrates the great potential of GhCDPK4 in improving drought resistance in crops.
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Affiliation(s)
- Hui Kong
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, College of Life Science, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Mengjuan Hou
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, College of Life Science, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Bin Ma
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, College of Life Science, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Zhaosong Xie
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, College of Life Science, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Jiameng Wang
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, College of Life Science, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Xinxia Zhu
- Xinjiang Production and Construction Corps Key Laboratory of Oasis Town and Mountain-basin System Ecology, College of Life Science, Shihezi University, Shihezi, Xinjiang 832003, China.
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35
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Zhang Y, Sui D, Hu J. Expression, purification, crystallization of a ZIP metal transporter from Bordetella bronchiseptica (BbZIP). Methods Enzymol 2023; 687:31-48. [PMID: 37666637 DOI: 10.1016/bs.mie.2023.05.012] [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] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
Structural studies of the ZIPs have greatly improved the understanding of the working mechanism for this functionally important metal transporter family. In this chapter, we describe the procedures to overexpress, purify, and crystallize a representative bacterial ZIP from Bordetella bronchiseptica (BbZIP), the structure of which was the first one that revealed the common structural framework of the transmembrane domain conserved within the entire ZIP family. We also discuss the considerations when we designed these experiments and compare the approaches used in this study with those commonly used in other works. The protocols provided in this chapter will facilitate structural and biochemical studies of other members of the ZIP family.
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Affiliation(s)
- Yao Zhang
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, United States
| | - Dexin Sui
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, United States
| | - Jian Hu
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, United States; Department of Chemistry, Michigan State University, East Lansing, MI, United States.
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36
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Aldwaik RK, Shian D, Thapa R, Vasudevan S, Ashqar MAA, Reich E, Kravchenko-Balasha N, Klutstein M. Overexpressed kinetochore genes are used by cancer cells as genome destabilizers and transformation catalysts. Transl Oncol 2023; 34:101703. [PMID: 37295219 DOI: 10.1016/j.tranon.2023.101703] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/14/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Cancer cells have an altered transcriptome, which contributes to their abnormal behavior. Many tumors have high levels of kinetochore genes, which play important roles in genome stability. This overexpression could be utilized to destabilize cancer cell genomes, however this has not been proven specifically. We investigated the link between kinetochore gene overexpression, chromosomal number variations (CNVs) and genomic instability. Data on RNA expression and CNV from 12 different cancer types were evaluated using information theory. In all cancer types, we looked at the relationship between RNA expression and CNVs. Kinetochore gene expression was found to be substantially linked with CNV levels. In all cancer types, with the exception of thyroid cancer, highly expressed kinetochore genes were enriched in the most dominant cancer-specific co-expression subnetworks characterizing the largest patient subgroups. Except for thyroid cancer, kinetochore inner protein CENPA was among the transcripts most strongly associated with CNV values in all cancer types studied, with significantly higher expression levels in patients with high CNVs than in patients with low CNVs. CENPA function was investigated further in cell models by transfecting genomically stable (HCT116) and unstable (MCF7 and HT29) cancer cell lines using CENPA overexpression vectors. This overexpression increased the number of abnormal cell divisions in the stable cancer cell line HCT116 and, to a lesser extent, in the unstable cell lines MCF7 and HT29. Overexpression improved anchorage-independent growth properties of all cell lines. Our findings suggest that overexpression of kinetochore genes in general, and CENPA in particular, can cause genomic instability and cancer progression.
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Affiliation(s)
- Reem Kamal Aldwaik
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Denen Shian
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Roshina Thapa
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Swetha Vasudevan
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Mimi Abo-Ayoub Ashqar
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Eli Reich
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Nataly Kravchenko-Balasha
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel.
| | - Michael Klutstein
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel.
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Wang S, Zhou X, Niu S, Chen L, Zhang H, Chen H, Zhou F. Assessment of HER2 in Gastric-Type Endocervical Adenocarcinoma and its Prognostic Significance. Mod Pathol 2023; 36:100148. [PMID: 36841435 DOI: 10.1016/j.modpat.2023.100148] [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: 12/13/2022] [Revised: 01/30/2023] [Accepted: 02/10/2023] [Indexed: 02/27/2023]
Abstract
As the most common type of human papillomavirus-independent endocervical adenocarcinomas (ECAs), gastric-type endocervical adenocarcinomas (GEAs) account for approximately 10% of all ECAs. Although anti-HER2 therapy has been proven effective in many cancers, it has not been used in ECAs, including GEAs, which is at least partly due to the lack of a well-defined guideline. Limited available data regarding HER2 in GEAs and ECAs have considerable variations likely caused by variations in the tumor type selection, testing methods, and scoring criteria. Here, we selected 58 GEA cases to examine the HER2 status using immunohistochemistry and fluorescent in situ hybridization and investigate the prognostic value and their association with other known or potential prognostic factors. When strong complete or lateral/basolateral membranous reactivity in ≥10% tumor cells was used to define HER2 positivity, relatively high prevalence of HER2 overexpression (10/58[17.2%]) and amplification (9/58 [15.5%]), as well as high immunohistochemistry-fluorescent in situ hybridization concordance rate (9/10 [90%]) was found in GEAs. A lateral/basolateral staining pattern ("U-shaped") was observed, at least focally, in most of HER2-positive (3+) and equivocal (2+) tumors. Notably, considerable heterogeneity of HER2 expression was observed in HER2 positive and equivocal cases (80.0% and 83.3%, respectively). HER2 overexpression and amplification were associated with worse progression-free survival (P = .047 and P = .032, respectively). Programmed death-ligand 1 expression was associated with worse progression-free survival (P = .032), whereas mutant-type p53 demonstrated no prognostic significance. Our work laid a solid foundation for the eventual development of a future standard HER2 testing guideline for GEAs.
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Affiliation(s)
- Su Wang
- Department of Pathology, Zhejiang University School of Medicine Women's Hospital, Hangzhou, Zhejiang Province, China
| | - Xin Zhou
- Department of Pathology, Zhejiang University School of Medicine Women's Hospital, Hangzhou, Zhejiang Province, China
| | - Shuang Niu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Pathology, Parkland Hospital, Dallas, Texas
| | - Lili Chen
- Department of Gynecology, Zhejiang University School of Medicine Women's Hospital, Hangzhou, Zhejiang Province, China
| | - Huijuan Zhang
- Departments of Pathology, International Peace Maternity and Child Health Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Hao Chen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Pathology, Parkland Hospital, Dallas, Texas.
| | - Feng Zhou
- Department of Pathology, Zhejiang University School of Medicine Women's Hospital, Hangzhou, Zhejiang Province, China.
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Wei Y, Peng X, Wang X, Wang C. The heavy metal-associated isoprenylated plant protein (HIPP) gene family plays a crucial role in cadmium resistance and accumulation in the tea plant (Camellia sinensis L.). Ecotoxicol Environ Saf 2023; 260:115077. [PMID: 37257351 DOI: 10.1016/j.ecoenv.2023.115077] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/21/2023] [Accepted: 05/25/2023] [Indexed: 06/02/2023]
Abstract
Heavy metal-associated isoprenylated plant proteins (HIPPs) are only distributed in vascular plants, and are essential for the detoxification and vascular transport of heavy metals in plants. However, the HIPP gene family has not been thoroughly explored in the tea plant (Camellia sinensis). In this study, we systematically identified 56C. sinensis CsHIPP genes from five groups and characterized their phylogeny, structures, and the features of the encoded proteins. The expression patterns of CsHIPP genes in various tissues of C. sinensis were investigated based on a previous RNA-seq data analysis. The expression patterns of CsHIPP genes were explored in cadmium (Cd)-treated C. sinensis roots using our RNA-seq data. Three CsHIPP genes (CsHIPP22, CsHIPP24, and CsHIPP36) with high expression levels in Cd-treated C. sinensis roots were selected as candidate genes associated with Cd tolerance. Overexpression of CsHIPP22, CsHIPP24, and CsHIPP36 in a yeast mutant (ycf1) rescued Cd-sensitive ycf1 yeast and increased the yeast resistance to Cd stress, implying that these three CsHIPPs might be involved in Cd tolerance. These findings will enable the roles of HIPPs in Cd absorption and detoxification to be better understood as well as improving our understanding of the Cd-resistance and Cd-accumulation mechanisms in tea plant.
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Affiliation(s)
- Yunfeng Wei
- College of Tea Science, Guizhou University, Guiyang 550025, China
| | - Xuqian Peng
- College of Tea Science, Guizhou University, Guiyang 550025, China
| | - Xiaojing Wang
- College of Tea Science, Guizhou University, Guiyang 550025, China.
| | - Cheng Wang
- Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, College of Life Scienceand Technology, Hubei EngineeringUniversity, Xiaogan 432000, China.
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He R, Chen Y, Qian C, Hu Y, Huang X, Tao R. Dishevelled segment polarity protein 2 promotes gastric cancer progression through Wnt/β-catenin pathway. Tissue Cell 2023; 82:102119. [PMID: 37257286 DOI: 10.1016/j.tice.2023.102119] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 05/12/2023] [Accepted: 05/23/2023] [Indexed: 06/02/2023]
Abstract
Dishevelled family proteins (DVL1-3), key scaffold proteins, act on canonical and non-canonical Wnt/β-catenin signaling pathway. DVL has been implicated in various tumor progression. However, its role and underlying mechanisms in gastric cancer (GC) remain unclear. The aim of this study was to investigate the role of DVL in GC development using cell lines and 209 GC specimens. We analyzed three orthologs of DVL in GC tissues and paired adjacent non-tumor tissues, and only DVL2 is highly expressed in GC tissues. We also analyzed clinicopathological data on DVL2 expression in gastric cancer specimens. In immunohistochemistry, DVL2 expression was up-regulated in GC tissues compared with paired adjacent non-tumor tissues (153/209, 73.2%). DVL2 expression level was significantly correlated with many clinicopathological parameters such as T stage (P < 0.001) and N stage (P < 0.001). Survival analysis showed that the overall survival (OS) of patients with high expression of DVL2 was significantly shorter than those with low expression. Multivariate Cox regression analysis revealed that DVL2 expression was an important and independent prognostic factor for gastric cancer patients (P = 0.011, HR=1.78, 95%CI (1.14-2.79). Depletion of endogenous DVL2 using short hairpin RNA (shRNA) inhibited GC cell proliferation, migration, and invasion. The abnormal activation of Wnt/β-catenin signaling pathway is mainly achieved through the abnormal expression of DVL2. DVL2 is highly expressed in gastric cancer tissues, which may be a new independent risk factor for the prognosis of gastric cancer patients. In gastric cancer, DVL2 overexpression plays a crucial role in the occurrence and development of gastric cancer, so it may become a new, effective and complementary therapeutic target for gastric cancer.
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Affiliation(s)
- Ruofei He
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Medical school of Nantong University, Nantong 226001, China
| | - Yu Chen
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Medical school of Nantong University, Nantong 226001, China
| | - Chenyu Qian
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Medical school of Nantong University, Nantong 226001, China
| | - YiLin Hu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Medical school of Nantong University, Nantong 226001, China
| | - Xinkun Huang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China.
| | - Ran Tao
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China.
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Salehi Z, Sharifynia S, Jamzivar F, Shams-Ghahfarokhi M, Poorabdollah M, Abtahian Z, Nasiri N, Marjani M, Moniri A, Salehi M, Tabarsi P, Razzaghi-Abyaneh M. Clinical epidemiology of pulmonary aspergillosis in hospitalized patients and contribution of Cyp51A, Yap1, and Cdr1B mutations to voriconazole resistance in etiologic Aspergillus species. Eur J Clin Microbiol Infect Dis 2023:10.1007/s10096-023-04608-7. [PMID: 37142789 DOI: 10.1007/s10096-023-04608-7] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 04/19/2023] [Indexed: 05/06/2023]
Abstract
Pulmonary aspergillosis is a life-threatening fungal infection with worldwide distribution. In the present study, clinical epidemiology of pulmonary aspergillosis and antifungal susceptibility of etiologic Aspergillus species were evaluated in one-hundred fifty patients with special focus on the frequency of voriconazole resistance. All the cases were confirmed by the clinical pictures, laboratory findings, and isolation of etiologic Aspergillus species which belonged to two major species, i.e., A. flavus and A. fumigatus. Seventeen isolates displayed voriconazole MIC greater than or equal to the epidemiological cutoff value. Expression of cyp51A, Cdr1B, and Yap1 genes was analyzed in voriconazole-intermediate/resistant isolates. In A. flavus, Cyp51A protein sequencing showed the substitutions T335A and D282E. In the Yap1 gene, A78C replacement led to Q26H amino acid substitution that was not reported previously in A. flavus resistant to voriconazole. No mutations associated with voriconazole resistance were found in the three genes of A. fumigatus. The expression of Yap1 was higher than that of two other genes in both A. flavus and A. fumigatus. Overall, voriconazole-resistant strains of both A. fumigatus and A. flavus demonstrated overexpression of Cdr1B, Cyp51A, and Yap1 genes compared to voriconazole-susceptible strains. Although there are still ambiguous points about the mechanisms of azole resistance, our results showed that mutations were not present in majority of resistant and intermediate isolates, while all of these isolates showed overexpression in all three genes studied. As a conclusion, it seems that the main reason of the emergence of mutation in voriconazole-resistant isolates of A. flavus and A. fumigatus is previous or prolonged exposure to azoles.
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Affiliation(s)
- Zahra Salehi
- Department of Mycology, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Somayeh Sharifynia
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | | | - Mihan Poorabdollah
- Pediatric Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Abtahian
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Naser Nasiri
- HIV/STI Surveillance Research Center, and WHO Collaborating Center for HIV Surveillance, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Marjani
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Afshin Moniri
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Salehi
- Research Center for Antibiotic Stewardship & Antimicrobial Resistance, Department of Infectious Diseases, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Payam Tabarsi
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Xu P, Li H, Xu K, Cui X, Liu Z, Wang X. Genetic variation in BnGRP1 contributes to low phosphorus tolerance in Brassica napus. J Exp Bot 2023:erad114. [PMID: 36964902 DOI: 10.1093/jxb/erad114] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Indexed: 06/18/2023]
Abstract
Lack of phosphorus (P) is a major environmental factor affecting rapeseed (Brassica napus. L) root growth and development. For breeding purposes, it is crucial to identify the molecular mechanisms of root system architecture (RSA) traits underlying low P tolerance in rapeseed. The natural variations in the glycine-rich protein gene, BnGRP1, were analyzed in the natural population of 400 rapeseed cultivars under low P stress through genome-wide association study (GWAS) and transcriptome analyses. Based on 11 SNP mutations in BnGRP1 sequence, ten types of haplotypes (Hap) were formed. Compared with the other types, the cultivar of BnGRP1Hap1 type in the panel demonstrated the longest root length and heaviest root weight. BnGRP1Hap1 overexpression in rapeseed depicted the ability to enhance its resistance in response to low P tolerance. CRISPR/Cas9-derived BnGRP1Hap4 knockout mutations in rapeseed can lead to sensitivity to low P stress. Furthermore, BnGRP1Hap1 influences the expression of phosphate transporter 1 (PHT1) genes associated with P absorption. Overall, the findings of this study highlight new mechanisms of GRP1 genes in enhancing low P tolerance in rapeseed.
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Affiliation(s)
- Ping Xu
- College of Agriculture and Forestry Science, Linyi University, Middle of Shuangling Road, Lanshan District, Linyi, 276000, China
| | - Haiyuan Li
- College of Agriculture and Forestry Science, Linyi University, Middle of Shuangling Road, Lanshan District, Linyi, 276000, China
| | - Ke Xu
- College of Agriculture and Forestry Science, Linyi University, Middle of Shuangling Road, Lanshan District, Linyi, 276000, China
| | - Xiaoyu Cui
- College of Agriculture and Forestry Science, Linyi University, Middle of Shuangling Road, Lanshan District, Linyi, 276000, China
| | - Zhenning Liu
- College of Agriculture and Forestry Science, Linyi University, Middle of Shuangling Road, Lanshan District, Linyi, 276000, China
| | - Xiaohua Wang
- College of Agriculture and Forestry Science, Linyi University, Middle of Shuangling Road, Lanshan District, Linyi, 276000, China
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Zhao Y, Yang W, Zheng K, Chen J, Jin X. The role of BMI1 in endometrial cancer and other cancers. Gene 2023; 856:147129. [PMID: 36563713 DOI: 10.1016/j.gene.2022.147129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/11/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Endometrial cancer (EC) is the third leading gynecological malignancy, and its treatment remains challenging. B cell-specific Moloney murine leukemia virus integration site-1 (BMI1) is one of the core members of the polycomb group (PcG) family, which plays a promoting role in the occurrence and development of various tumors. Notably, BMI1 has been found to be frequently upregulated in endometrial cancer (EC) and promote the occurrence of EC through promoting epithelial-mesenchymal transition (EMT) and AKT/PI3K pathways. This review summarizes the structure and upstream regulatory mechanisms of BMI1 and its role in EC. In addition, we focused on the role of BMI1 in chemoradiotherapy resistance and summarized the current drugs that target BMI1.
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Han J, Li X, Li W, Yang Q, Li Z, Cheng Z, Lv L, Zhang L, Han D. Isolation and preliminary functional analysis of FvICE1, involved in cold and drought tolerance in Fragaria vesca through overexpression and CRISPR/Cas9 technologies. Plant Physiol Biochem 2023; 196:270-280. [PMID: 36736009 DOI: 10.1016/j.plaphy.2023.01.048] [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] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/18/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Cold and drought stresses are serious problems of strawberry cultivation in temperate and subtropical regions. In the molecular regulation system of cold and drought stresses, ICE transcription factors (TFs) are crucial. In this research, the FvICE1 was isolated from Fragaria vesca 'Hawaii 4', a bioinformatics analysis was conducted, overexpression vector and CRISPR/cas9 vector were constructed. The results showed that FvICE1 was a member of the bHLH TF family, with a length of 1608 bp, encoding 535 amino acids, and its molecular formula was C2504H3987N745O811S22. By observing the fusion protein 35S-FvICE1-GFP, it was found that FvICE1 was a nuclear protein. The qRT-PCR results demonstrated that FvICE1 was significantly upregulated in different tissues of Fragaria vesca after cold, drought, salt and heat treatments. The wild type (WT) strawberry was selected as the control group, FvICE1-overexpression strawberries showed high tolerance to cold and drought treatments at the phenotypic and physiological levels. On the contrary, fvice1 mutant strawberries obtained by CRISPR/cas9 editing technology had lower tolerance to cold and drought treatments. Moreover, the expression of FvCBF1, FvCBF2, FvCBF3, FvCOR413, FvRD22 and FvKIN1 was positively regulated in the FvICE1-overexpression strawberries and inhibited in fvice1 mutant strawberries. Overall, the current results suggested that FvICE1 functioned as a positively regulator of cold and drought resistances.
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Affiliation(s)
- Jiaxin Han
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Xingguo Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Wenhui Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Qian Yang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Zhenghao Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Zhi Cheng
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Long Lv
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Lihua Zhang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China.
| | - Deguo Han
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions, College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China.
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Mołoń M, Zaciura M, Wojdyła D, Molestak E. Increasing the number of ribosomal uL6 mRNA copies accelerates aging of the budding yeast. Mol Biol Rep 2023; 50:2933-41. [PMID: 36576675 DOI: 10.1007/s11033-022-08187-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/07/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Aging is a biological process from which there is no escape. Diverse factors contribute to aging, most notably cell energy metabolism. Ribosome biogenesis and translation are the two main energy-consuming processes that contribute to longevity. It has repeatedly been shown that translation disorders caused by deletion of ribosomal genes delay aging. However, the effect of increasing the amount of ribosomal proteins has remained elusive. METHODS AND RESULTS We determine the relative level of the uL6A and uL6B mRNA derived from the genome and the plasmid. The appearance of additional copies of plasmid-derived uL6 leads to an increase in uL6A and uL6B derived from the BY4741 genome (mainly form B). The relative amount of mRNA of plasmid form B is several times greater than the amount of mRNA in plasmid form A. The level of mRNA derived from the plasmid is increased many times compared to the mRNA of genomic origin. Additionally, the study indicates that excess of uL6A is a limiting or even harmful factor in the reaction to stressful conditions. Therefore, our hypothesis states that uL6A transcription or mRNA uL6A degradation in yeast cells are tightly regulated. our data clearly demonstrate that aging is accelerated when additional copies of uL6 paralogs appear. CONCLUSION Overexpression of both uL6A or uL6B accelerates aging in the budding yeast. The level of uL6A mRNA is tightly controlled by yeast cell. The uL6a protein plays a pivotal role in the response to environmental stress, including oxidative and osmotic stress, and thus may fall into the class of moonlighting ribosomal proteins with extra-ribosomal function.
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Zhang Y, Dhanasekaran S, Ngea GLN, Yang Q, Zhang H. Overexpression of the SDR gene improves the ability of Meyerozyma guilliermondii to degrade patulin in pears and juices. Food Chem 2023; 417:135785. [PMID: 36913869 DOI: 10.1016/j.foodchem.2023.135785] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 01/23/2023] [Accepted: 02/21/2023] [Indexed: 02/27/2023]
Abstract
The intracellular enzymes of antagonistic yeast are effective in controlling patulin (PAT) contamination. However, countless enzymes that have been revealed remain functionally uncharacterized. The study built on previous transcriptomic data obtained by our research group to amplify and express a gene encoding a short-chain dehydrogenase/reductase (SDR) in Meyerozyma guilliermondii. Overexpression of SDR increased the tolerance of M. guilliermondii to PAT and the ability to degrade PAT of the intracellular enzymes. Furthermore, MgSDR-overexpressed M. guilliermondii showed higher PAT degradation in juices (apple and peach) and controlled the blue mold of pears at 20 °C and 4 °C while significantly reduced the content of PAT and the biomass of Penicillium expansum in decayed tissues than wild-type M. guilliermondii. This study provides theoretical references for the subsequent heterologous expression, formulation, and application of the SDR protein from M. guilliermondii and contributes to elucidating the PAT degradation mechanism of antagonistic yeasts.
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Affiliation(s)
- Yu Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Solairaj Dhanasekaran
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | | | - Qiya Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China.
| | - Hongyin Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China.
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Wang HC, Huo YN, Lee WS. Activation of progesterone receptor is essential for folic acid-regulated cancer cell proliferation and migration. J Nutr Biochem 2023; 112:109205. [PMID: 36455835 DOI: 10.1016/j.jnutbio.2022.109205] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 05/16/2022] [Accepted: 11/02/2022] [Indexed: 11/30/2022]
Abstract
We previously demonstrated that activation of progesterone receptor (PR) is essential for folic acid (FA)-inhibited proliferation in colorectal cancer cell lines. In the present study, we further investigated whether the requirement of PR activation for the FA-regulated cell proliferation and migration is a general phenomenon for all cancer cell lines or specific for colorectal cancer cell lines only. Initially, we examined the expression of PR in various cancer cell lines using Western blot analyses and RT-PCR technique, and then investigated the effects of FA on these cancer cell lines. Our data showed that the effects of FA on proliferation and migration only occurred in the PR positive (+) cancer cell lines, but not the PR negative (-) cancer cell lines, and these effects were abolished by pre-treatment with the PR specific inhibitor, Org 31710. On the other hand, FA significantly reduced the proliferation and migration in the PR (-) cancer cell lines transfected with PR pcDNA. However, FA did not significantly affect the proliferation and migration in the PR-transefected Hep-3B cell line, which does not express endogenous PR and FA receptor (FR). Since we previously showed that FA-regulated proliferation in colorectal and breast cancer cell lines through the cSrc-mediated pathway, we conducted immunoprecipitation assay to demonstrate that PR formed a complex with FR and cSrc, but FR did not directly associate with cSrc. Taken together, these findings suggest that the requirement of PR activation for the FA-regulated cell proliferation and migration is a general phenomenon for all cancer cell lines.
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Affiliation(s)
- Hui-Chen Wang
- Graduate Institutes of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Second Degree Bachelor of Science in Nursing, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yen-Nien Huo
- Graduate Institutes of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Sen Lee
- Graduate Institutes of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Cancer Research Center, Taipei Medical University Hospital, Taipei, Taiwan; Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Physiology, School of Medicine, Tzu Chi University, Hualien, Taiwan.
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47
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De Marco A, Baldassarro VA, Calzà L, Giardino L, Dondi F, Ferrari MG, Bignami G, Parma L, Bonaldo A. Prolonged heat waves reduce the condition index and alter the molecular parameters in the pacific oyster Crassostrea gigas. Fish Shellfish Immunol 2023; 133:108518. [PMID: 36610607 DOI: 10.1016/j.fsi.2023.108518] [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: 07/16/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
The entire shellfish farming sector is negatively affected by heat waves. Predictive models show that while heat waves are not predicted to exceed 28 °C in the northern Adriatic Sea over the coming decades, their duration will increase to periods of up to 30 days. Knowledge regarding the effects of heat waves on bivalves at physiological and molecular level is still limited. This study attempted to simulate what will happen in the future in Pacific oysters exposed to prolonged heat waves, assessing morphometric and physiological indices, and investigating the expression level of a number of genes, including the chaperone heat shock proteins HSP70, HSP72 and HSP90, and the factor P53. A state of stress in the heat wave-exposed animals was found, with loss of body weight and energy resources: despite showing a higher clearance rate, these animals were unable to absorb the nutrients required to maintain homeostasis, as well as demonstrating an alteration in hemolymphatic AST activity, total calcium and magnesium concentration. mRNA levels of all examined genes increased in response to thermal stress, with long-term overexpression, activating cell stress defense mechanisms and modulating the cycle cell. The results of this study indicate that heat waves affect oyster welfare, with consequences for the productivity of the sector due to the lack of salable products.
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Affiliation(s)
- Antonina De Marco
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy.
| | - Vito Antonio Baldassarro
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Laura Calzà
- Health Science and Technologies Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna, Via Tolara di Sopra 41/E, 40064, Ozzano Emilia, Bologna, Italy
| | - Luciana Giardino
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Francesco Dondi
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Maria Giulia Ferrari
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Giorgia Bignami
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Luca Parma
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
| | - Alessio Bonaldo
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano Emilia, Bologna, Italy
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48
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Xu Y, Gan ES, Ito T. Misexpression Approaches for the Manipulation of Flower Development. Methods Mol Biol 2023; 2686:429-451. [PMID: 37540372 DOI: 10.1007/978-1-0716-3299-4_21] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
The generation of dominant gain-of-function mutants through activation tagging is a forward genetic approach that can be applied to study the mechanisms of flower development, complementing the screening of loss-of-function mutants. In addition, the functions of genes of interest can be further analyzed through reverse genetics. A commonly used method is gene overexpression, where ectopic expression can result in an opposite phenotype to that caused by a loss-of-function mutation. When overexpression is detrimental, the misexpression of a gene using tissue-specific promoters can be useful to study spatial-specific function. As flower development is a multistep process, it can be advantageous to control gene expression, or its protein product activity, in a temporal and/or spatial manner. This has been made possible through several inducible promoter systems as well as inducible proteins by constructing chimeric fusions between the ligand-binding domain of the glucocorticoid receptor (GR) and the protein of interest. The recently introduced CRISPR-Cas9-based platform provides a new way of bioengineering transcriptional regulators in plants. By fusing a catalytically inactive dCas9 with functional activation or repression domains, the CRISPR-Cas9 module can achieve transcriptional activation or repression of endogenous genes. All these methods allow us to genetically manipulate gene expression during flower development. In this chapter, we describe methods to produce the expression constructs, method of screening, and more general applications of the techniques.
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Affiliation(s)
- Yifeng Xu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, China.
| | - Eng-Seng Gan
- Republic Polytechnic, School of Applied Science (SAS), Singapore, Singapore
| | - Toshiro Ito
- Nara Institute of Science and Technology, Biological Sciences, Plant Stem Cell Regulation and Floral Patterning Laboratory, Ikoma, Nara, Japan.
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Santin Y, Parini A, Mialet-Perez J. Expression and Function of MAO A in Cardiac Cells by Means of Adenovirus-Mediated Gene Transfer. Methods Mol Biol 2023; 2558:163-170. [PMID: 36169862 DOI: 10.1007/978-1-0716-2643-6_12] [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] [Indexed: 06/16/2023]
Abstract
Gene-transfer methods are useful to study the structural or functional roles of recombinant proteins in vitro. In particular, adenovirus-mediated gene transduction results in strong efficiency and high level of expression in primary cells such as cardiomyocytes, which are difficult to transfect with classical methods. Here, we describe a protocol that enables efficient expression of MAO A in both primary cells and cell lines. Following expression of recombinant MAO A, substrate-induced activation of the enzyme can be assessed by measuring production of reactive oxygen species and downstream signal transduction pathways in cells. This model allows to decipher the biological function of MAO A on metabolism, mitochondrial fitness, cell death/survival, and proliferation.
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Affiliation(s)
- Yohan Santin
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Angelo Parini
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France
| | - Jeanne Mialet-Perez
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERM, Université de Toulouse, Toulouse, France.
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50
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Arsenault HE, Benanti JA. Identification of Deubiquitinase Substrates in Saccharomyces cerevisiae by Systematic Overexpression. Methods Mol Biol 2023; 2591:237-253. [PMID: 36350552 DOI: 10.1007/978-1-0716-2803-4_14] [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] [Indexed: 06/16/2023]
Abstract
A significant hurdle to understanding the functions of deubiquitinases (DUBs) is the identification of their in vivo substrates. Substrate identification can be difficult for two reasons. First, many proteins that are degraded by the ubiquitin-proteasome system are expressed at relatively low levels in the cell, and second, redundancy between DUBs complicates loss of function screening approaches. Here, we describe a systematic overexpression approach that takes advantage of genome-wide resources available in S. cerevisiae to overcome these challenges and identify DUB substrates in cells.
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Affiliation(s)
- Heather E Arsenault
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Jennifer A Benanti
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA.
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