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Zhao L, Yao L, Liu M, Qiu S, He J, Lin J, Tao Z, Lu Y, Deng S, Chen H, Qiu SX. Longistylin A from Cajanus cajan (L.) Millsp. disturbs glycerophospholipid metabolism and cytokinin biosynthesis of Nocardia seriolae. JOURNAL OF ETHNOPHARMACOLOGY 2024; 330:118199. [PMID: 38631486 DOI: 10.1016/j.jep.2024.118199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 04/03/2024] [Accepted: 04/12/2024] [Indexed: 04/19/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nocardiosis is an uncommon infectious disease that bears certain similarities to tuberculosis, with a continuous increase in its incidence and a poor prognosis. In traditional Chinese medicine, the leaves of Cajanus cajan (L.) Millsp. are employed to treat wounds, malaria, coughs, and abdominal pain. AIM OF THE STUDY In this study, we investigated the effects and mechanisms of longistylin A (LGA), a natural stilbene isolated from C. cajan, as a potential antibiotic against nocardiosis. MATERIALS AND METHODS LGA was isolated from the leaves of C. cajan and assessed using a minimum bactericidal concentration (MBC) determination against Nocardia seriolae. Multi-omics analysis encompassing genes, proteins, and metabolites was conducted to investigate the impact of LGA treatment on N. seriolae. Additionally, quantitative analysis of 40 cytokinins in N. seriolae mycelium was performed to assess the specific effects of LGA treatment on cytokinin levels. Cryo-scanning electron microscopy was utilized to examine morphological changes induced by LGA treatment, particularly in the presence of exogenous trans-zeatin-O-glucoside (tZOG). The therapeutic effect of LGA was investigated by feeding N. seriolae-infected largemouth bass. RESULTS LGA exhibited significant efficacy against N. seriolae, with MBC value of 2.56 μg/mL. Multi-omics analysis revealed that LGA disrupted glycerophospholipid metabolism and hormone biosynthesis by notably reducing the expression of glycerol-3-phosphate dehydrogenase and calmodulin-like protein. Treatment with LGA markedly disrupted 12 distinct cytokinins in N. seriolae mycelium. Additionally, the addition of exogenous tZOG counteracted the inhibitory effects of LGA on filamentous growth, resulting in mycelial elongation and branching. Furthermore, LGA treatment improved the survival rate of largemouth bass infected with N. seriolae. CONCLUSIONS We found for the first time that LGA from C. cajan exhibited significant efficacy against N. seriolae by interfering with glycerophospholipid metabolism and cytokinin biosynthesis.
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Affiliation(s)
- Liyun Zhao
- State Key Laboratory of Plant Diversity and Specialty Crops & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Liyuan Yao
- State Key Laboratory of Plant Diversity and Specialty Crops & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Meilan Liu
- State Key Laboratory of Plant Diversity and Specialty Crops & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; College of Life Science and Engineering, Foshan University, Foshan, 528231, China; Guangzhou Leader Biotechnology Co., LTD, Guangzhou, 510650, China
| | - Silin Qiu
- State Key Laboratory of Plant Diversity and Specialty Crops & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Jiani He
- State Key Laboratory of Plant Diversity and Specialty Crops & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jindong Lin
- Guangzhou Leader Biotechnology Co., LTD, Guangzhou, 510650, China
| | - Zhengguo Tao
- Guangzhou Leader Biotechnology Co., LTD, Guangzhou, 510650, China
| | - Yu Lu
- Guangzhou Leader Biotechnology Co., LTD, Guangzhou, 510650, China
| | - Shulin Deng
- State Key Laboratory of Plant Diversity and Specialty Crops & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Hongfeng Chen
- State Key Laboratory of Plant Diversity and Specialty Crops & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Sheng-Xiang Qiu
- State Key Laboratory of Plant Diversity and Specialty Crops & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
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Pallapati AR, Prasad S, Roy I. Glycerol 3-phosphate dehydrogenase regulates heat shock response in Saccharomyces cerevisiae. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2022; 1869:119238. [PMID: 35150808 DOI: 10.1016/j.bbamcr.2022.119238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/19/2022] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
The aim of this work was to identify elements of adaptive regulatory mechanism for basal level of yeast histone deacetylase Sir2. Heat shock response (HSR) was altered in the absence of the NAD-dependent glycerol 3-phosphate dehydrogenase (Gpd1). Increase in HSR was lower in ΔGpd1 cells than wild-type cells. An inverse correlation existed between Gpd1 and Sir2; Sir2-deleted cells showed higher expression of Gpd1 while deletion of Gpd1 led to higher expression of Sir2. In the absence of Gpd1, basal activity of Sir2 promoter was higher and was increased further upon heat shock, suggesting higher Sir2 levels. No interaction between Gpd1 and Sir2 was detected without or with heat shock using immunoprecipitation. The results show that Gpd1 regulates HSR in yeast cells and likely blocks its uncontrolled activation. As uncontrolled stress adversely affects the cellular adaptive response, Gpd1 may be a component of the cell's catalogue to ensure a balanced response to unmitigated thermal stress.
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Affiliation(s)
- Anusha Rani Pallapati
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar, Punjab 160062, India
| | - Shivcharan Prasad
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar, Punjab 160062, India
| | - Ipsita Roy
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar, Punjab 160062, India.
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