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Kwok, Benjamin; Wu, Benjamin G; Kocak, Ibrahim F; Sulaiman, Imran; Schluger, Rosemary; Li, Yonghua; Anwer, Raheel; Goparaju, Chandra; Ryan, Daniel J; Sagatelian, Marla; Dreier, Matthew S; Murthy, Vivek; Rafeq, Samaan; Michaud, Gaetane C; Sterman, Daniel H; Bessich, Jamie L; Pass, Harvey I; Segal, Leopoldo N; Tsay, Jun-Chieh J
Scientific reports, 02/2023, Letnik: 13, Številka: 1Journal Article
Malignant pleural effusions (MPE) complicate malignancies and portend worse outcomes. MPE is comprised of various components, including immune cells, cancer cells, and cell-free DNA/RNA. There have been investigations into using these components to diagnose and prognosticate MPE. We hypothesize that the microbiome of MPE is unique and may be associated with diagnosis and prognosis. We compared the microbiota of MPE against microbiota of pleural effusions from non-malignant and paramalignant states. We collected a total of 165 pleural fluid samples from 165 subjects; Benign (n = 16), Paramalignant (n = 21), MPE-Lung (n = 57), MPE-Other (n = 22), and Mesothelioma (n = 49). We performed high throughput 16S rRNA gene sequencing on pleural fluid samples and controls. We showed that there are compositional differences among pleural effusions related to non-malignant, paramalignant, and malignant disease. Furthermore, we showed differential enrichment of bacterial taxa within MPE depending on the site of primary malignancy. Pleural fluid of MPE-Lung and Mesothelioma were associated with enrichment with oral and gut bacteria that are commonly thought to be commensals, including Rickettsiella, Ruminococcus, Enterococcus, and Lactobacillales. Mortality in MPE-Lung is associated with enrichment in Methylobacterium, Blattabacterium, and Deinococcus. These observations lay the groundwork for future studies that explore host-microbiome interactions and their influence on carcinogenesis.
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in: SICRIS
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