Bacterial Floras and Biofilms of Malignant Wounds Associated with Breast Cancers - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Clinical Microbiology Année : 2013

Bacterial Floras and Biofilms of Malignant Wounds Associated with Breast Cancers

Isabelle Fromantin
Sarah Watson
Florence Rollot
  • Fonction : Auteur
Jacqueline Elard
  • Fonction : Auteur
Marie Christine Escande
  • Fonction : Auteur
Yann de Rycke
Irène Kriegel
  • Fonction : Auteur
Véronique Larreta Garde
  • Fonction : Auteur

Résumé

ABSTRACT The risk of infections and the appearance of symptoms (e.g., odors) represent the main troubles resulting from malignant wounds. The aim of this study was to characterize the balance of bacterial floras and the relationships between biofilms and bacteria and the emergence of symptoms. Experimental research was carried out for 42 days on malignant wounds associated with breast cancer. Investigations of bacterial floras (aerobes, aero-anaerobes, and anaerobes), detection of the presence of biofilms by microscopic epifluorescence, and clinical assessment were performed. We characterized biofilms in 32 malignant wounds associated with breast cancer and bacterial floras in 25 such wounds. A mixed group of floras, composed of 54 different bacterial types, was identified, with an average number per patient of 3.6 aerobic species and 1.7 anaerobic species; the presence of strict anaerobic bacterial strains was evidenced in 70% of the wounds; biofilm was observed in 35% of the cases. Odor was a reliable indicator of colonization by anaerobes, even when this symptom was not directly linked to any of the identified anaerobic bacteria. Bacteria are more likely to be present during myelosuppression and significantly increase the emergence of odors and pain when present at amounts of >10 5 · g −1 . The presence of biofilms was not associated with clinical signs or with precise types of bacteria. No infections occurred during the 42-day evaluation period. This study provides a dynamic description of the bacterial floras of tumoral wounds. The study results highlight the absolute need for new therapeutic options that are effective for use on circulating bacteria as well as on bacteria organized in biofilm.

Dates et versions

hal-03593692 , version 1 (02-03-2022)

Identifiants

Citer

Isabelle Fromantin, Damien Seyer, Sarah Watson, Florence Rollot, Jacqueline Elard, et al.. Bacterial Floras and Biofilms of Malignant Wounds Associated with Breast Cancers. Journal of Clinical Microbiology, 2013, 51 (10), pp.3368-3373. ⟨10.1128/jcm.01277-13⟩. ⟨hal-03593692⟩
7 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More