Author

Katlyn Todd

Indiana University Indianapolis

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Microbiology· 4

Signature Assays, Organisms & Methods

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Approach:experimental assay· 4 Research Focus:host-pathogen & immune response· 3 Organism:bacteria (other)· 2 Research Focus:drug response / drug discovery· 1 Organism:human· 1 Organism:mouse· 1

Frequent Co-Authors

Jay VornhageniD· 4 shared Krista B. GunteriD· 2 shared Natasha L. Tilston‐LuneliD· 2 shared Ryan F. RelichiD· 2 shared Valerie Velazquez-Colon· 2 shared Amanda Blankenberger· 1 shared Andrew J. StarkiD· 1 shared Arnav Singh· 1 shared

Activity by Year

2024-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 27 mutual co-author links

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Focal author (center)Selected co-authorORCID co-authorUnlinked name

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4 shared papersMicrobiology

Jay VornhagenORCID

Mutual co-authors in cluster

Author profile →

4 papers

Recent·Most cited

Repurposing antiviral drugs as a new avenue for Klebsiella pneumoniae decolonization

Nicole D. Anderson, Krista B. Gunter, Katlyn Todd, Valerie Velazquez-Colon, Maria Casiano, Nithyashree Maheswaran, Amanda Blankenberger, Arnav Singh, Ryan F. Relich, Natasha L. Tilston‐Lunel, Jay Vornhagen

This study identifies antiviral drugs with anti-Klebsiella pneumoniae activity, showing strain-specific effects and resistance mechanisms, suggesting their potential for gut decolonization.

bioRxiv · Sep 30, 2026 · PreprintMicrobiology

Sugar Import Suppresses Klebsiella pneumoniae Mucoidy in cAMP-CRP-dependent Manner

Saroj Khadka, George E. Gates, Andrew J. Stark, Katlyn Todd, Bennett A. Allison, Jay Vornhagen, Laura A. Mike

This study shows that sugar import, not catabolism, suppresses mucoidy in hypervirulent K. pneumoniae via cAMP-CRP signaling, reducing rmpADC promoter activity and rmpD expression.

Nature Communications · Jul 23, 2026Peer-reviewedMicrobiology

Pseudomonas aeruginosa phenazines dictate site-specific competitive interactions with Klebsiella pneumoniae

Katlyn Todd, Olivia Schneider, Joshua M. Lawrence, Josefina L Aronoff, B. J. Witek, Valerie Velazquez-Colon, Verónica Santana-Ufret, Moraima Noda, Ryan F. Relich, Li‐Fan Zeng, Dominique H. Limoli, Christopher Whidbey, Jay Vornhagen

This study shows that Pseudomonas aeruginosa uses phenazines to inhibit Klebsiella pneumoniae growth, with strain-specific and site-dependent effects.

bioRxiv · Aug 26, 2025 · PreprintMicrobiology

Type-2 diabetes mellitus enhances Klebsiella pneumoniae pathogenesis

Katlyn Todd, Krista B. Gunter, James M. Bowen, Caitlyn L. Holmes, Natasha L. Tilston‐Lunel, Jay Vornhagen

This study shows that type 2 diabetes mellitus enhances Klebsiella pneumoniae pathogenesis by increasing gut colonization and lung infection severity.

bioRxiv · May 31, 2024 · PreprintMicrobiology