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Thomas RC, Dunn JC, Orsman CJ, Morris AJ, Hipperson H, Grice PV, Hamer KC, Goodman SJ. Successful storage of Trichomonas gallinae on Whatman FTA cards following culture. CONSERV GENET RESOUR 2022. [DOI: 10.1007/s12686-022-01263-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractLogistical constraints concerning parasite sample storage can hinder progress with the discovery of genetic variation on a global scale. New storage methods are being developed to address this, but require testing in order to understand how widely applicable these methods are. Whatman FTA cards have been tested previously under laboratory conditions for storing low-concentration Trichomonas gallinae isolates with the conclusion that they are not suitable, but have not been tested under field conditions. Here, we conducted a field-test, comparing FTA cards with storage in ethanol for T. gallinae samples collected and cultured from wild Columbiformes in Africa using standard field methods, before transportation to the UK. After 6 months storage, both methods resulted in an overall prevalence of 100% following PCR amplification (n = 59), suggesting that FTA cards are suitable for estimation of T. gallinae prevalence. However, samples stored in ethanol produced more, and longer, sequences than those stored on FTA cards. These data suggest storage in ethanol is preferable for the acquisition of high quality genetic strain data, but that FTA cards can be used successfully to ascertain infection prevalence and identify parasite strains under field conditions.
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Qin B, Zhang Q, Hu XM, Mi TY, Yu HY, Liu SS, Zhang B, Tang M, Huang JF, Xiong K. How does temperature play a role in the storage of extracellular vesicles? J Cell Physiol 2020; 235:7663-7680. [PMID: 32324279 DOI: 10.1002/jcp.29700] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/31/2020] [Accepted: 03/31/2020] [Indexed: 02/06/2023]
Abstract
Extracellular vesicles (EVs) contain specific proteins, lipids, and nucleic acids that can be passed to other cells as signal molecules to alter their function. However, there are many problems and challenges in the conversion and clinical application of EVs. Storage and protection of EVs is one of the issues that need further research. To adapt to potential clinical applications, this type of problem must be solved. This review summarizes the storage practices of EVs in recent years, and explains the impact of temperature on the quality and stability of EVs during storage based on current research, and explains the potential mechanisms involved in this effect as much as possible.
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Affiliation(s)
- Bo Qin
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Qi Zhang
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Xi-Min Hu
- Clinical Medicine Eight-year Program, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Tuo-Yang Mi
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Hai-Yang Yu
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Shen-Shen Liu
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Bin Zhang
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Mu Tang
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Ju-Fang Huang
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Kun Xiong
- Department of Neurobiology and Human Anatomy, School of Basic Medical Science, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
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Bassi D, Orrù L, Cabanillas Vasquez J, Cocconcelli PS, Fontana C. Peruvian chicha: A Focus on the Microbial Populations of This Ancient Maize-Based Fermented Beverage. Microorganisms 2020; 8:E93. [PMID: 32284502 PMCID: PMC7022331 DOI: 10.3390/microorganisms8010093] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 12/30/2019] [Accepted: 01/01/2020] [Indexed: 12/25/2022] Open
Abstract
Peruvian chicha de jora is one of the most ancient traditional beverages produced through maize fermentation, still popular to modern consumers, but less studied in terms of microbial compositions. In this work, the bacterial biodiversity of 27 chicha samples collected from 14 different "chicherias" in seven provinces of Peru was investigated by Next-Generation Sequencing (NGS). A large dissimilarity in chicha microbial composition was a direct consequence of ingredients, manufacturing processes and geographical influences. The core microbiome was represented by six main genera, belonging to Lactic Acid Bacteria (LAB) and Acetic Acid Bacteria (AAB). Lactobacillus prevailed (more than 50% of sequences belong to this genus) followed by Weissella, Leuconostoc, Lactococcus and Streptococcus. Acetobacter was the only AAB genus identified in chicha. The occurrence of sequences associated to spoiling and pathogenic bacteria, such as Bacillus, Clostridium, and Enterobacteriaceae, was observed only in a few samples, validating the safety of this beverage. Predictive functional annotation of metagenomic sequences revealed that carbohydrate and amino acid metabolisms and coenzyme transport are the main KEGG categories associated to chicha fermentation pathways. The old recipes and traditional processing of each chicherias helps maintain native microorganisms as a resource of biodiversity with potential technological and health-beneficial properties.
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Affiliation(s)
- Daniela Bassi
- DISTAS, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122 Piacenza, Italy. Biotechnology Research Centre (CRB), via Milano 24, 26100 Cremona, Italy; (D.B.); (P.S.C.)
| | - Luigi Orrù
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura e l’Analisi dell’Economia Agraria, Centro di Ricerca per la Genomica Vegetale (CREA-GPG), 29017 Fiorenzuola d’Arda, Italy;
| | - Jeison Cabanillas Vasquez
- Universidad Católica Sedes Sapientia, Esquina Constelaciones y Sol de Oro S/N, Urbanización Sol de Oro, Cercado de Lima 15302, Peru;
| | - Pier Sandro Cocconcelli
- DISTAS, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122 Piacenza, Italy. Biotechnology Research Centre (CRB), via Milano 24, 26100 Cremona, Italy; (D.B.); (P.S.C.)
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Neo SH, Chung KY, Quek JM, Too HP. Trehalose significantly enhances the recovery of serum and serum exosomal miRNA from a paper-based matrix. Sci Rep 2017; 7:16686. [PMID: 29192155 PMCID: PMC5709463 DOI: 10.1038/s41598-017-16960-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 11/19/2017] [Indexed: 12/27/2022] Open
Abstract
The preservation of nucleic acids from clinical samples is critical to facilitate accurate molecular diagnosis. The use of a paper matrix, Flinders Technology Associates (FTA) Elute cards, to archive DNA and viral RNA is well-documented. However, the feasibility of FTA Elute cards for archiving serum and serum exosomal microRNAs (miRNAs) remains unclear. Here, we performed a comprehensive evaluation of FTA Elute cards for miRNA storage and recovery in different pre-analytical conditions. The recovery of serum miRNA dry-spotted on FTA Elute cards by direct elution with water at high temperature was poor. However, serum miRNAs dry-spotted on the cards were isolated with about 40% yield when using QIAzol lysis reagent and recovery was improved remarkably (>80%) upon extraction from cards pre-treated with trehalose. miRNAs stored on the cards remained stable at room temperature and can be kept for prolonged periods. Furthermore, miRNAs could be similarly recovered from serum exosomes dry-spotted on the cards. Importantly, when using sera from gastric cancer (GC) patients, the miRNAs were efficiently recovered from trehalose pre-treated cards without affecting their representation. Collectively, we have demonstrated the potential of FTA Elute cards to archive serum and serum exosomal miRNAs, making it useful for biomarker discovery and diagnostics.
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Affiliation(s)
- Shu Hui Neo
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore.
| | - Ka Yan Chung
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore
| | - Jia Min Quek
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore
| | - Heng-Phon Too
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore.
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Block MD7, 8 Medical Drive, Singapore, 117597, Singapore.
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Dong L, Lin C, Li L, Wang M, Cui J, Feng R, Liu B, Wu Z, Lian J, Liao G, Chen W, Qiao Y. An evaluation of clinical performance of FTA cards for HPV 16/18 detection using cobas 4800 HPV Test compared to dry swab and liquid medium. J Clin Virol 2017; 94:67-71. [DOI: 10.1016/j.jcv.2017.06.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 05/25/2017] [Accepted: 06/25/2017] [Indexed: 10/19/2022]
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