Cystic fibrosis is a genetic disorder associated with a polymicrobial lung infection where classical pathogens and newly identified bacteria may interact. Inquilinus limosus is an a-proteobacterium recently isolated in the airways of cystic fibrosis patient. We report the first case in Italy of I.limosus isolation from the sputum sample of a cystic fibrosis patient. The patient is a 20-years-old man with cystic fibrosis, regularly attending the Regional Care Center for Cystic Fibrosis at the Federico II University Hospital of Naples. Microbiological culture methods detected a mucoid gram negative bacillus in the patient???s sputum sample. The isolate exhibited a distinct antimicrobial susceptibility profile with a high MIC for several drugs. The MALDI-TOF mass spectrometry analysis indicated the bacterium isolated as I. limosus, confirmed by 16s rDNA sequence analysis. The described clinical case demonstrates how the bacterial biodiversity in the airways of cystic fibrosis patients is still underestimated. Cystic fibrosis lung represents an ecological niche suitable for growth of a wide variety of unusual bacteria not commonly associated with human diseases, such as I. limosus. Therefore further studies are needed to evaluate the epidemiology and clinical implications of I. limosus in the physiopathology of cystic fibrosis lung infection.
Identification of Inquilinus limosus in Cystic Fibrosis: a first report in Italy / Cicatiello, ANNUNZIATA GAETANA; Iula, VITA DORA; Pagliuca, Chiara; Gabiria, Pastore; Caterina, Pagliarulo; Catania, MARIA ROSARIA; Colicchio, Roberta; Picardi, Marco; Raia, Valeria; Salvatore, Paola. - In: NEW MICROBIOLOGICA. - ISSN 1121-7138. - 37:4(2014), pp. 567-571.
Identification of Inquilinus limosus in Cystic Fibrosis: a first report in Italy
CICATIELLO, ANNUNZIATA GAETANA;IULA, VITA DORA;PAGLIUCA, CHIARA;CATANIA, MARIA ROSARIA;COLICCHIO, ROBERTA;PICARDI, MARCO;RAIA, VALERIA;SALVATORE, PAOLA
2014
Abstract
Cystic fibrosis is a genetic disorder associated with a polymicrobial lung infection where classical pathogens and newly identified bacteria may interact. Inquilinus limosus is an a-proteobacterium recently isolated in the airways of cystic fibrosis patient. We report the first case in Italy of I.limosus isolation from the sputum sample of a cystic fibrosis patient. The patient is a 20-years-old man with cystic fibrosis, regularly attending the Regional Care Center for Cystic Fibrosis at the Federico II University Hospital of Naples. Microbiological culture methods detected a mucoid gram negative bacillus in the patient???s sputum sample. The isolate exhibited a distinct antimicrobial susceptibility profile with a high MIC for several drugs. The MALDI-TOF mass spectrometry analysis indicated the bacterium isolated as I. limosus, confirmed by 16s rDNA sequence analysis. The described clinical case demonstrates how the bacterial biodiversity in the airways of cystic fibrosis patients is still underestimated. Cystic fibrosis lung represents an ecological niche suitable for growth of a wide variety of unusual bacteria not commonly associated with human diseases, such as I. limosus. Therefore further studies are needed to evaluate the epidemiology and clinical implications of I. limosus in the physiopathology of cystic fibrosis lung infection.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.