Parenteral Nutrition Maintains Pulmonary IgA Antibody Transport Capacity, but Not Active Transport, Following Injury
Overview
Authors
Affiliations
Background: Parenteral nutrition (PN) increases post-trauma pneumonia versus enteral feeding. PN impairs murine immunoglobulin A (IgA) airway defenses and abrogates a normal IgA increase following injury. This work investigates the effect of type/route of nutrition on lung IgA and its transport protein, polymeric immunoglobulin receptor (pIgR), after injury.
Methods: Catheterized mice were randomized to Chow or PN for 5 days and sacrificed without injury (Chow: n = 12; PN n = 11), or 8 hours after laparotomy + neck incisions (Chow-injury: n = 11, PN-injury: n = 13). Bronchoalveolar lavage (BAL) and lung IgA levels were analyzed by enzyme-linked immunosorbent assay (ELISA) and lung pIgR by Western blot.
Results: BAL IgA levels increased in Chow-injury versus PN-injury (P <.01) with no differences in pIgR. PN-injury tissue IgA levels decreased versus Chow (P <.01), Chow-injury (P <.01), and PN (P <.05).
Conclusions: PN impairs the airway IgA response to injury but not due to impaired IgA transport capacity/pIgR level.
Quiroz-Olguin G, Gutierrez-Salmean G, Posadas-Calleja J, Padilla-Rubio M, Serralde-Zuniga A Eur J Clin Nutr. 2021; 75(11):1533-1539.
PMID: 33608653 DOI: 10.1038/s41430-021-00877-7.
Medrano G, Cailleux F, Guan P, Kuruvilla K, Barlow-Anacker A, Gosain A FASEB J. 2019; 33(6):7615-7624.
PMID: 30908942 PMC: 6529339. DOI: 10.1096/fj.201801913R.
Gastrointestinal immune and microbiome changes during parenteral nutrition.
Pierre J Am J Physiol Gastrointest Liver Physiol. 2017; 312(3):G246-G256.
PMID: 28154012 PMC: 5401992. DOI: 10.1152/ajpgi.00321.2016.
The gastrointestinal immune system: Implications for the surgical patient.
Pierre J, Busch R, Kudsk K Curr Probl Surg. 2015; 53(1):11-47.
PMID: 26699624 PMC: 4811185. DOI: 10.1067/j.cpsurg.2015.10.005.
Gut Lymphocyte Phenotype Changes After Parenteral Nutrition and Neuropeptide Administration.
Jonker M, Heneghan A, Fechner J, Pierre J, Sano Y, Lan J Ann Surg. 2015; 262(1):194-201.
PMID: 25563877 PMC: 4844224. DOI: 10.1097/SLA.0000000000000878.