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Lee SH, Kim NK, Jung YJ, Cho SH, Choi O, Lee JH, Choi KS, Yoon H, Hur M, Park HD. Isolation and characterization of novel 3,3'-iminodipropionitrile biodegrading Paracoccus communis, from an industrial wastewater treatment bioreactor. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172099. [PMID: 38580115 DOI: 10.1016/j.scitotenv.2024.172099] [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: 12/22/2023] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/07/2024]
Abstract
Until now, bacteria able to degrade, 3,3'-iminodipropionitrile (IDPN), a neurotoxin that destroys vestibular hair cells, causing ototoxicity, culminating in irreversible movement disorders, had never been isolated. The aim of this study was to isolate a novel IDPN-biodegrading microorganism and characterize its metabolic pathway. Enrichment was performed by inoculating activated sludge from a wastewater treatment bioreactor that treated IDPN-contaminated wastewater in M9 salt medium, with IDPN as the sole carbon source. A bacterial strain with a spherical morphology that could grow at high concentrations was isolated on a solid medium. Growth of the isolated strain followed the Monod kinetic model. Based on the 16S rRNA gene, the isolate was Paracoccus communis. Whole-genome sequencing revealed that the isolated P. communis possessed the expected full metabolic pathway for IDPN biodegradation. Transcriptome analyses confirmed the overexpression of the gene encoding hydantoinase/oxoprolinase during the exponential growth phase under IDPN-fed conditions, suggesting that the enzyme involved in cleaving the imine bond of IDPN may promote IDPN biodegradation. Additionally, the newly discovered P. communis isolate seems to metabolize IDPN through cleavage of the imine bond in IDPN via nitrilase, nitrile hydratase, and amidase reactions. Overall, this study lays the foundation for the application of IDPN-metabolizing bacteria in the remediation of IDPN-contaminated environments.
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Affiliation(s)
- Sang-Hoon Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Na-Kyung Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
| | - You-Jung Jung
- National Institute of Biological Resources, Environmental Research Complex, Incheon 22689, Republic of Korea
| | - Shin Hae Cho
- College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH, USA
| | - Onekyun Choi
- Department of Chemical Engineering, University of Toledo, Toledo, OH, USA
| | - Jeong-Hoon Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Ki-Seung Choi
- R&D Center, ECO CDI Cooperation, Ltd., 129, Cheongwonsandan 8-gil, Mado-myeon, Hwaseong-si, Gyeonggi-do 18543, Republic of Korea
| | - Hyeokjun Yoon
- National Institute of Biological Resources, Environmental Research Complex, Incheon 22689, Republic of Korea
| | - Moonsuk Hur
- National Institute of Biological Resources, Environmental Research Complex, Incheon 22689, Republic of Korea
| | - Hee-Deung Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea.
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Alrashood ST, Al-Asmari AK, Alotaibi AK, Manthiri RA, Rafatullah S, Hasanato RM, Khan HA, Ibrahim KE, Wali AF. Protective effect of lyophilized sapodilla ( Manilkara zapota) fruit extract against CCl 4-induced liver damage in rats. Saudi J Biol Sci 2020; 27:2373-2379. [PMID: 32884419 PMCID: PMC7451601 DOI: 10.1016/j.sjbs.2020.05.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/10/2020] [Accepted: 05/03/2020] [Indexed: 02/08/2023] Open
Abstract
The tropical fruit sapodilla (Manilkara zapota syn. Achras zapota) is a rich source of nutrients, minerals and a myriad of bioactive phytochemicals such as flavonoids and catechins. Pharmacologically, sapodilla has been shown to exhibit anti-bacterial, anti-parasitic, anti-fungal, antiglycative, hypocholesterolemic and anti-cancer effects. However, its influence on hepatic tissue and serum lipids remains obscure. To address this, we used an in vivo model of liver damage to elucidate the effect of lyophilized sapodilla extract (LSE) treatment in carbon tetra chloride (CCl4) intoxicated rats. Exposure of CCl4 resulted in elevation of serum biomarkers of liver damage (aspartate transaminase, alanine aminotransferase, γ-glutamyl transferase and alkaline phosphatase), bilirubin and dysregulation of serum lipid profile (cholesterol and triglycerides). These effects were significantly and dose-dependently reversed by LSE treatment (250 and 500 mg/kg). Administration of LSE also reduced the structural damage caused by CCl4 in the liver. Furthermore, determination of oxidative stress parameters (malondialdehyde and non-protein sulfhydryls) revealed that LSE treatment mitigated CCl4-triggered modulation of both molecules. LSE also showed a strong antioxidant activity in 2,2-diphenyl-1-picrylhydrazyl (DPPH) and β-carotene-linoleic acid assays. In conclusion, the present study discloses the hepatoprotective and lipid-lowering effects of lyophilized sapodilla extract against CCl4-induced liver damage, an effect, at least in part, mediated by its antioxidant activity.
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Affiliation(s)
- Sara T. Alrashood
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdulrahman K. Al-Asmari
- Scientific Research Center, Medical Service Department (MSD), Ministry of Defence, Riyadh, Saudi Arabia
| | - Abdullah K. Alotaibi
- Scientific Research Center, Medical Service Department (MSD), Ministry of Defence, Riyadh, Saudi Arabia
| | - Rajamohamed A. Manthiri
- Scientific Research Center, Medical Service Department (MSD), Ministry of Defence, Riyadh, Saudi Arabia
| | - Syed Rafatullah
- Scientific Research Center, Medical Service Department (MSD), Ministry of Defence, Riyadh, Saudi Arabia
| | - Rana M. Hasanato
- Department of Pathology, College of Medicine, King Saud University Medical City, Riyadh 11472, Saudi Arabia
| | - Haseeb A. Khan
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Khalid E. Ibrahim
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Adil F. Wali
- Department of Pharmaceutical Chemistry, RAK Medical and Health Sciences University, Ras Al Khaimah 11172, United Arab Emirates
- Corresponding author at: Department of Pharmaceutical Chemistry, RAKCOPS, RAK Medical and Health Sciences University, Ras Al Khaimah 11172, United Arab Emirates.
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