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El-Sawah AA, El-Naggar NEA, Eldegla HE, Soliman HM. Green synthesis of collagen nanoparticles by Streptomyces xinghaiensis NEAA-1, statistical optimization, characterization, and evaluation of their anticancer potential. Sci Rep 2024; 14:3283. [PMID: 38332176 PMCID: PMC10853202 DOI: 10.1038/s41598-024-53342-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/31/2024] [Indexed: 02/10/2024] Open
Abstract
Collagen nanoparticles (collagen-NPs) are promising biopolymeric nanoparticles due to their superior biodegradability and biocompatibility. The low immunogenicity and non-toxicity of collagen-NPs makes it preferable for a wide range of applications. A total of eight morphologically distinct actinomycetes strains were newly isolated from various soil samples in Egypt. The cell-free supernatants of these strains were tested for their ability. These strains' cell-free supernatants were tested for their ability to synthesize collagen-NPs. Five isolates had the ability to biosynthesize collagen-NPs. Among these, a potential culture, Streptomyces sp. NEAA-1, was chosen and identified as Streptomyces xinghaiensis NEAA-1 based on 16S rRNA sequence analysis as well as morphological, cultural and physiological properties. The sequence data has been deposited at the GenBank database under the accession No. OQ652077.1. Face-centered central composite design (FCCD) has been conducted to maximize collagen-NPs biosynthesis. Maximum collagen-NPs was 8.92 mg/mL under the condition of 10 mg/mL of collagen concentration, initial pH 7, incubation time of 48 h and temperature of 35 °C. The yield of collagen-NPs obtained via FCCD optimization (8.92 mg/mL) was 3.32-fold compared to the yield obtained under non-optimized conditions (2.5 mg/mL). TEM analysis of collagen-NPs showed hollow sphere nanoscale particles with mean of 32.63 ± 14.59 nm in diameter. FTIR spectra showed major peaks of amide I, amide II and amide III of collagen and also the cell-free supernatant involved in effective capping of collagen-NPs. The biosynthesized collagen-NPs exhibited anti-hemolytic, antioxidant and cytotoxic activities. The inhibitory concentrations (IC50) against MCF-7, HeP-G2 and HCT116 cell lines were 11.62 ± 0.8, 19.60 ± 1.2 and 41.67 ± 2.2 µg/mL; respectively. The in-vivo investigation showed that collagen-NPs can suppress Ehrlich ascites carcinoma (EAC) growth in mice. The collagen-NPs/DOX combination treatment showed considerable tumor growth suppression (95.58%). Collagen-NPs evaluated as nanocarrier with a chemotherapeutic agent, methotrexate (MTX). The average size of MTX loaded collagen-NPs was 42.73 ± 3.5 nm. Encapsulation efficiency percentage (EE %) was 48.91% and drug loading percentage (DL %) was 24.45%.
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Affiliation(s)
- Asmaa A El-Sawah
- Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt.
| | - Noura El-Ahmady El-Naggar
- Department of Bioprocess Development, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, 21934, Alexandria, Egypt.
| | - Heba E Eldegla
- Medical Microbiology and Immunology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Hoda M Soliman
- Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt
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Madhaiyan M, Saravanan VS, See-Too WS, Volpiano CG, Sant’Anna FH, Faria da Mota F, Sutcliffe I, Sangal V, Passaglia LMP, Rosado AS. Genomic and phylogenomic insights into the family Streptomycetaceae lead to the proposal of six novel genera. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The family
Streptomycetaceae
is a large and diverse family within the phylum
Actinomycetota
. The members of the family are known for their ability to produce medically important secondary metabolites, notably antibiotics. In this study, 19 type strains showing low 16S rRNA gene similarity (<97.3 %) to other members of the family
Streptomycetaceae
were identified and their high genetic diversity was reflected in a phylogenomic analysis using conserved universal proteins. This analysis resulted in the identification of six distinct genus-level clades, with two separated from the genus
Streptacidiphilus
and four separated from the genus
Streptomyces
. Compared with members of the genera
Streptacidiphilus
and
Streptomyces
, average amino acid identity (AAI) analysis of the novel genera identified gave values within the range of 63.9–71.3 %, as has been previously observed for comparisons of related but distinct bacterial genera. The whole-genome phylogeny was reconstructed using PhyloPhlAn 3.0 based on an optimized subset of conserved universal proteins, the results of AAI and percentage of conserved proteins (POCP) analyses indicated that these phylogenetically distinct taxa may be assigned to six novel genera, namely Actinacidiphila gen. nov., Mangrovactinospora gen. nov., Peterkaempfera gen. nov., Phaeacidiphilus gen. nov., Streptantibioticus gen. nov. and Wenjunlia gen. nov.
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Affiliation(s)
- Munusamy Madhaiyan
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore 117604
| | | | - Wah-Seng See-Too
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Camila Gazolla Volpiano
- Department of Pediatrics (Genetics), Albert Einstein College of Medicine, Bronx, New York, USA
| | | | - Fábio Faria da Mota
- Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, 4365, Brasil Ave, Rio de Janeiro, RJ, Brazil
| | - Iain Sutcliffe
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Vartul Sangal
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Luciane Maria Pereira Passaglia
- Departamento de Genética and Programa de Pós-graduação em Genética e Biologia Molecular, Instituto de Biociências, 9500, Bento Gonçalves Ave, Porto Alegre, RS, Brasil
| | - Alexandre Soares Rosado
- BESE, Biological and Environmental Sciences and Engineering Division, KAUST, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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Kaewkla O, Sukpanoa S, Suriyachadkun C, Chamroensaksi N, Chumroenphat T, Franco CMM. Streptomyces spinosus sp. nov. and Streptomyces shenzhenensis subsp. oryzicola subsp. nov. endophytic actinobacteria isolated from Jasmine rice and their genome mining for potential as antibiotic producers and plant growth promoters. Antonie van Leeuwenhoek 2022; 115:871-888. [PMID: 35597859 DOI: 10.1007/s10482-022-01741-9] [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: 12/23/2021] [Accepted: 04/15/2022] [Indexed: 11/25/2022]
Abstract
Two endophytic actinobacteria, strains SBTS01T and W18L9T, were isolated from leaf sheath and leaf tissue, respectively, of Jasmine rice (Oryza sativa KDML 105) grown in a rice paddy field in Roi Et Province, Thailand. A polyphasic taxonomic study showed that both strains belong to the genus Streptomyces; they are aerobic, forming well-developed substrate mycelia and aerial mycelia with long chains of spores. Strain SBTS01T shares high 16S rRNA gene sequence similarity with Streptomyces rochei NRRL B-2410 T (99.0%) and Streptomyces naganishii NRRL ISP-5282 T (99.0%). Strain W18L9T shares high 16S rRNA gene sequence similarity with Streptomyces shenzhenensis DSM 42034 T (99.7%). The genotypic and phenotypic properties of strains SBTS01T and W18L9T distinguish these two strains from the closely related species with validly published names. The genome analysis showed the dDDH, ANIb and ANIm values of the draft genome between strain SBTS01T and its close neighbour in the phylogenomic tree, Streptomyces corchorusii DSM 40340T to be 54.1, 92.6, and 94.3%, respectively; similarly for strain W18L9T and the closely related species S. shenzhenensis DSM 42034 T values were 72.5, 95.1 and 97.0%. The name proposed for the new species represented by the type strain SBTS01T is Streptomyces spinosus (= NRRL B-65636 T = TBRC 15052T). The name proposed for the novel subspecies of strain W18L9T is Streptomyces shenzhenensis subsp. oryzicola (= NRRL B-65635 T = TBRC 15051T). Recognition of this subspecies also permits the description of Streptomyces shenzhenensis subsp. shenzhenensis. Strains SBTS01T and W18L9T can produce antibiotic against rice and human pathogens and showed plant growth promoting properties such as production of indole acetic acid, cytokinin, 1-aminocyclopropane-1-carboxylate (ACC) deaminase, siderophores and cellulase. Genomic data mining of these two strains confirmed their potential as antibiotic producers and plant growth promoters. Their genomes contain multiple biosynthetic gene clusters including those for terpene, type 1, 2 and 3 polyketide synthase, Non-ribosomal peptide synthetase and lanthipeptides. Genes encoding plant growth promoting traits such; nitrogen fixation, ACC deaminase, siderophore production and stress-related adaption may have ecological significance.
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Affiliation(s)
- Onuma Kaewkla
- Department of Biology, Faculty of Science, Mahasarakham University, Maha Sarakham Province, 44150, Thailand.
- Department of Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide 5042, Australia.
| | - Sudarat Sukpanoa
- Department of Biology, Faculty of Science, Mahasarakham University, Maha Sarakham Province, 44150, Thailand
| | - Chanwit Suriyachadkun
- Thailand Bioresource Research Center (TBRC), National Science and Technology Development Agency, Klong Luang, Pathumthani, 12120, Thailand
| | - Nitcha Chamroensaksi
- National Biobank of Thailand (NBT), National Science and Technology Development Agency, Klong Luang, Pathumthani, 12120, Thailand
| | - Theeraphan Chumroenphat
- Laboratory Equipment Center, Mahasarakham University, Maha Sarakham Province, 44150, Thailand
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Streptomyces barringtoniae sp. nov., isolated from rhizosphere of plant with antioxidative potential. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005364] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinomycete strain, JA03T, belonging to the genus
Streptomyces
, was isolated from the rhizosphere of Barringtonia racemosa (L.) Spreng. It was characterized taxonomically using a polyphasic approach. It grew at 25–37 °C, at pH 5–10 and with 6 % (w/v) NaCl. It contained ll-diaminopimelic acid in the cell-wall peptidoglycan. Ribose and glucose were detected in its whole-cell hydrolysate. The predominant cellular fatty acids were iso-C16 : 0, anteiso-C15 : 0, C16 : 0, iso-C14 : 0 and iso-C15 : 0. Detected polar lipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannosides, unidentified phospholipids and unidentified amino lipids. Based on the results of 16S rRNA gene sequence analyses, strain JA03T showed highest similarity to
Streptomyces filipinensis
NBRC 12860T (98.76 %),
Streptomyces fodineus
TW1S1T (98.69 %) and Streptomyces shenzhennensis 172115T (98.68 %). Strain JA03T has a genome size of 9 092 851 bp with DNA G+C content of 71.28 mol%. The average nucleotide identity (ANI)-blast and ANI-MUMmer values of strain JA03T and related type strains were 79.6–89.2 and 86.7–92.5 %, respectively, and the digital DNA–DNA hybridization values were 27.3–46.4 %. Ethyl acetate extract of JA03T exhibited total phenolic content (33.4±0.6 µg mg−1 gallic acid equivalent), ferric reducing power value (70.8±1.8 µg mg−1 ascorbic acid equivalent) and 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity (IC50=67.0±21.1 µg ml−1). Intracellular reactive oxygen species and NO production in RAW264.7 macrophage cells induced by H2O2 and lipopolysaccharide were inhibited with IC50 of 67.40 and 16.95 µg ml−1, respectively. Based on the taxonomic results, it has been concluded that strain JA03T represents a novel species of the genus
Streptomyces
for which the name Streptomyces barringtoniae sp. nov., is proposed. The type strain is JA03T (=LMG 32415T=TISTR 2999T).
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