Rapid assessment of changes in phage bioactivity using dynamic light scattering
© The Author(s) 2023. Published by Oxford University Press on behalf of National Academy of Sciences..
Extensive efforts are underway to develop bacteriophages as therapies against antibiotic-resistant bacteria. However, these efforts are confounded by the instability of phage preparations and a lack of suitable tools to assess active phage concentrations over time. In this study, we use dynamic light scattering (DLS) to measure changes in phage physical state in response to environmental factors and time, finding that phages tend to decay and form aggregates and that the degree of aggregation can be used to predict phage bioactivity. We then use DLS to optimize phage storage conditions for phages from human clinical trials, predict bioactivity in 50-y-old archival stocks, and evaluate phage samples for use in a phage therapy/wound infection model. We also provide a web application (Phage-Estimator of Lytic Function) to facilitate DLS studies of phages. We conclude that DLS provides a rapid, convenient, and nondestructive tool for quality control of phage preparations in academic and commercial settings.
| Errataetall: | |
|---|---|
| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2023 |
|---|---|
| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:2 |
|---|---|
| Enthalten in: |
PNAS nexus - 2(2023), 12 vom: 30. Dez., Seite pgad406 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Dharmaraj, Tejas [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Aggregation |
|---|
| Anmerkungen: |
Date Revised 04.04.2024 published: Electronic-eCollection UpdateOf: bioRxiv. 2023 Jul 02;:. - PMID 37425882 Citation Status PubMed-not-MEDLINE |
|---|
| doi: |
10.1093/pnasnexus/pgad406 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM366025198 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM366025198 | ||
| 003 | DE-627 | ||
| 005 | 20240404234506.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231227s2023 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1093/pnasnexus/pgad406 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1364.xml |
| 035 | |a (DE-627)NLM366025198 | ||
| 035 | |a (NLM)38111822 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Dharmaraj, Tejas |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Rapid assessment of changes in phage bioactivity using dynamic light scattering |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Revised 04.04.2024 | ||
| 500 | |a published: Electronic-eCollection | ||
| 500 | |a UpdateOf: bioRxiv. 2023 Jul 02;:. - PMID 37425882 | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a © The Author(s) 2023. Published by Oxford University Press on behalf of National Academy of Sciences. | ||
| 520 | |a Extensive efforts are underway to develop bacteriophages as therapies against antibiotic-resistant bacteria. However, these efforts are confounded by the instability of phage preparations and a lack of suitable tools to assess active phage concentrations over time. In this study, we use dynamic light scattering (DLS) to measure changes in phage physical state in response to environmental factors and time, finding that phages tend to decay and form aggregates and that the degree of aggregation can be used to predict phage bioactivity. We then use DLS to optimize phage storage conditions for phages from human clinical trials, predict bioactivity in 50-y-old archival stocks, and evaluate phage samples for use in a phage therapy/wound infection model. We also provide a web application (Phage-Estimator of Lytic Function) to facilitate DLS studies of phages. We conclude that DLS provides a rapid, convenient, and nondestructive tool for quality control of phage preparations in academic and commercial settings | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a aggregation | |
| 650 | 4 | |a bacteriophage decay | |
| 650 | 4 | |a bacteriophage therapy | |
| 650 | 4 | |a dynamic light scattering | |
| 700 | 1 | |a Kratochvil, Michael J |e verfasserin |4 aut | |
| 700 | 1 | |a Pourtois, Julie D |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Qingquan |e verfasserin |4 aut | |
| 700 | 1 | |a Hajfathalian, Maryam |e verfasserin |4 aut | |
| 700 | 1 | |a Hargil, Aviv |e verfasserin |4 aut | |
| 700 | 1 | |a Lin, Yung-Hao |e verfasserin |4 aut | |
| 700 | 1 | |a Evans, Zoe |e verfasserin |4 aut | |
| 700 | 1 | |a Oromí-Bosch, Agnès |e verfasserin |4 aut | |
| 700 | 1 | |a Berry, Joel D |e verfasserin |4 aut | |
| 700 | 1 | |a McBride, Robert |e verfasserin |4 aut | |
| 700 | 1 | |a Haddock, Naomi L |e verfasserin |4 aut | |
| 700 | 1 | |a Holman, Derek R |e verfasserin |4 aut | |
| 700 | 1 | |a van Belleghem, Jonas D |e verfasserin |4 aut | |
| 700 | 1 | |a Chang, Tony H |e verfasserin |4 aut | |
| 700 | 1 | |a Barr, Jeremy J |e verfasserin |4 aut | |
| 700 | 1 | |a Lavigne, Rob |e verfasserin |4 aut | |
| 700 | 1 | |a Heilshorn, Sarah C |e verfasserin |4 aut | |
| 700 | 1 | |a Blankenberg, Francis G |e verfasserin |4 aut | |
| 700 | 1 | |a Bollyky, Paul L |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t PNAS nexus |d 2022 |g 2(2023), 12 vom: 30. Dez., Seite pgad406 |w (DE-627)NLM338905472 |x 2752-6542 |7 nnns |
| 773 | 1 | 8 | |g volume:2 |g year:2023 |g number:12 |g day:30 |g month:12 |g pages:pgad406 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1093/pnasnexus/pgad406 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 2 |j 2023 |e 12 |b 30 |c 12 |h pgad406 | ||