The Bladder Is a Novel Target of Developmental Polychlorinated Biphenyl Exposure Linked to Increased Inflammatory Cells in the Bladder of Young Mice
| Autor: | Conner L. Kennedy, Thomas Lavery, Robbie S.J. Manuel, Lisa M. Arendt, Kimberly P. Keil Stietz, Alexandra Nunez, Audrey Spiegelhoff, Lauren E. Hillers-Ziemer, Kathy Wang |
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| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Stromal cell Offspring Health Toxicology and Mutagenesis Inflammation TP1-1185 Toxicology Article chemistry.chemical_compound Immune system lower urinary tract Lower urinary tract symptoms Lactation Internal medicine medicine POPs bladder inflammation developmental basis of adult disease Chemical Health and Safety business.industry Chemical technology Polychlorinated biphenyl medicine.disease Endocrinology medicine.anatomical_structure chemistry Gestation medicine.symptom business |
| Zdroj: | Toxics Toxics, Vol 9, Iss 214, p 214 (2021) Toxics; Volume 9; Issue 9; Pages: 214 |
| ISSN: | 2305-6304 |
| DOI: | 10.3390/toxics9090214 |
| Popis: | Bladder inflammation is associated with several lower urinary tract symptoms that greatly reduce quality of life, yet contributing factors are not completely understood. Environmental chemicals are plausible mediators of inflammatory reactions within the bladder. Here, we examine whether developmental exposure to polychlorinated biphenyls (PCBs) leads to changes in immune cells within the bladder of young mice. Female mice were exposed to an environmentally relevant mixture of PCBs through gestation and lactation, and bladders were collected from offspring at postnatal day (P) 28–31. We identify several dose- and sex-dependent PCB effects in the bladder. The lowest concentration of PCB (0.1 mg/kg/d) increased CD45+ hematolymphoid immune cells in both sexes. While PCBs had no effect on CD79b+ B cells or CD3+ T cells, PCBs (0.1 mg/kg/d) did increase F4/80+ macrophages particularly in female bladder. Collagen density was also examined to determine whether inflammatory events coincide with changes in the stromal extracellular matrix. PCBs (0.1 mg/kg/d) decreased collagen density in female bladder compared to control. PCBs also increased the number of cells undergoing cell division predominantly in male bladder. These results implicate perturbations to the immune system in relation to PCB effects on the bladder. Future study to define the underlying mechanisms could help understand how environmental factors can be risk factors for lower urinary tract symptoms. |
| Databáze: | OpenAIRE |
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