Cat and dog feces as reservoirs of diverse novel antibiotic resistance genes.

Chen, Caiping; Li, Yuanyuan; Wu, Zhihong; Ruan, Yali; Long, Tengfei; Wang, Xiran; Li, Wenjie; Ren, Hao; Liao, Xiaoping; Liu, Yahong; Lian, Xinlei; Sun, Jian

Chen, Caiping; Li, Yuanyuan; Wu, Zhihong; Ruan, Yali; Long, Tengfei; Wang, Xiran; Li, Wenjie; Ren, Hao; Liao, Xiaoping; Liu, Yahong; Lian, Xinlei; Sun, Jian.

Afiliación

Chen C; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Li Y; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Wu Z; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Ruan Y; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Long T; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Wang X; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Li W; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Ren H; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Liao X; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Liu Y; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Lian X; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic
Sun J; State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medic

Environ Res ; : 119690, 2024 Jul 26.

Article en En | MEDLINE | ID: mdl-39068967

ABSTRACT

ABSTRACT

Companion animals have the potential to greatly enhance the physical and mental health of humans, thus leading to an increased focus on the interactions between humans and pets. Currently, the inappropriate and excessive utilization of antimicrobial agents has become prevalent in veterinary clinical practice for pets. This antibiotic contamination phenomenon has a profound impact on the enrichment of antibiotic resistance bacteria (ARB) and antibiotic resistance genes (ARGs) in pets. However, the pet-associated resistome, especially the novel ARGs in pets, represents a relatively neglected area. In this study, we successfully constructed a total of 12 libraries using the functional metagenomics approach to assess the diversity of ARGs in pet cats and dogs from four pet hospitals. Through the integration of functional screening and high-throughput sequencing, a total of 122 antibiotic resistance determinants were identified, of which 15 were classified as putative novel ARGs originating from five classes. Functional assessment demonstrated that 6 novel ARGs including one ß-lactam, two macrolides, two aminoglycosides, and one rifamycin (RIF), namely blaPF, ermPF, msrPF, aac(6')PF, aph(3')PF, and arrPF, exhibited functionally activity in conferring bacterial phenotypic resistance by increasing the minimum inhibitory concentrations (MICs) with a 4- to 128-fold. Genetic context analysis demonstrated that, with the exception of aac(6')PF and arrPF, the remaining four novel ARGs were found adjacent to mobile genetic elements (MGEs) including IS elements or transposases, which provided a prerequisite for horizontal transfer of these novel ARGs, thereby offering an explanation for their detection in diverse samples collected from various sampling sites. The current study has unveiled the significant role of cat and dog feces as one source of reservoirs of diverse novel ARGs, while also highlighting the potential adverse consequences of their further spread to medically significant pathogens and human commensal organisms.

Palabras clave

Cat and dog feces; Diverse novel ARGs; Functional metagenomics; Reservoirs

Texto completo

Imprimir

XML

PubMed Links

Buscar en Google