Effect of the gene silencing of phosphorus transporters on phosphorus absorption across primary cultured duodenal epithelial cell monolayers of chick embryos

The aim of the study was to investigate whether phosphorus (P) transporters, type IIb sodium-dependent phosphate cotransporter (NaP-IIb) and inorganic phosphate transporter 2 (PiT2), were directly involved in P absorption across primary cultured duodenal epithelial cell monolayers of chick embryos....

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Main Authors: Ting-ting LI, Na LU, Yu-xin SHAO, Li-yang ZHANG, Lin LU, Zong-ping LIU, Xu-gang LUO, Xiu-dong LIAO
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2022-07-01
Series:Journal of Integrative Agriculture
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Online Access:http://www.sciencedirect.com/science/article/pii/S2095311921637711
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author Ting-ting LI
Na LU
Yu-xin SHAO
Li-yang ZHANG
Lin LU
Zong-ping LIU
Xu-gang LUO
Xiu-dong LIAO
author_facet Ting-ting LI
Na LU
Yu-xin SHAO
Li-yang ZHANG
Lin LU
Zong-ping LIU
Xu-gang LUO
Xiu-dong LIAO
author_sort Ting-ting LI
collection DOAJ
description The aim of the study was to investigate whether phosphorus (P) transporters, type IIb sodium-dependent phosphate cotransporter (NaP-IIb) and inorganic phosphate transporter 2 (PiT2), were directly involved in P absorption across primary cultured duodenal epithelial cell monolayers of chick embryos. The siRNAs against NaP-IIb or PiT2 were designed, synthesized and transfected into primary cultured duodenal epithelial cells of chick embryos. Then, the inhibitory efficiency of siRNAs against NaP-IIb or PiT2 was analyzed, and the most efficacious siRNAs were selected to be used for subsequent P absorption experiments. Briefly, primary cultured duodenal epithelial cells of chick embryos were transfected with either NaP-IIb or PiT2 siRNAs and grown in confluent monolayers on transwell plates. The untransfected or transfected cell monolayers were then incubated in an uptake medium containing 0 or 0.25 mmol L–1 of P as KH2PO4 to measure the P absorption across duodenal epithelial cell monolayers. The results showed that among the siRNAs designed, si-1372 and si-890 were demonstrated to be the most effective in inhibiting the NaP-IIb and PiT2 expressions, respectively. Supplemental P increased (P=0.065) the protein abundance of PiT2 and enhanced (P<0.0001) P absorption in primary cultured duodenal epithelial cell of chick embryos. Furthermore, NaP-IIb silencing decreased (P=0.07) P absorption across duodenal epithelial cell monolayers, while PiT2 silencing had no effect (P=0.345). It is concluded that the NaP-IIb, but not PiT2, might be directly involved in the P absorption of chick duodenal epithelial cells.
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spelling doaj-art-bd4f319f5f144189b9ccbb64764ee6d22025-08-20T03:57:43ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192022-07-012172076208510.1016/S2095-3119(21)63771-1Effect of the gene silencing of phosphorus transporters on phosphorus absorption across primary cultured duodenal epithelial cell monolayers of chick embryosTing-ting LI0Na LU1Yu-xin SHAO2Li-yang ZHANG3Lin LU4Zong-ping LIU5Xu-gang LUO6Xiu-dong LIAO7Poultry Mineral Nutrition Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, P.R.ChinaMineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.ChinaMineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.ChinaMineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.ChinaMineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.ChinaCollege of Veterinary Medicine, Yangzhou University, Yangzhou 225009, P.R.ChinaPoultry Mineral Nutrition Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, P.R.China; Correspondence LUO Xu-gang, Tel: +86-514-87976732Mineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China; Correspondence LIAO Xiu-dong, Tel: +86-10-62820866The aim of the study was to investigate whether phosphorus (P) transporters, type IIb sodium-dependent phosphate cotransporter (NaP-IIb) and inorganic phosphate transporter 2 (PiT2), were directly involved in P absorption across primary cultured duodenal epithelial cell monolayers of chick embryos. The siRNAs against NaP-IIb or PiT2 were designed, synthesized and transfected into primary cultured duodenal epithelial cells of chick embryos. Then, the inhibitory efficiency of siRNAs against NaP-IIb or PiT2 was analyzed, and the most efficacious siRNAs were selected to be used for subsequent P absorption experiments. Briefly, primary cultured duodenal epithelial cells of chick embryos were transfected with either NaP-IIb or PiT2 siRNAs and grown in confluent monolayers on transwell plates. The untransfected or transfected cell monolayers were then incubated in an uptake medium containing 0 or 0.25 mmol L–1 of P as KH2PO4 to measure the P absorption across duodenal epithelial cell monolayers. The results showed that among the siRNAs designed, si-1372 and si-890 were demonstrated to be the most effective in inhibiting the NaP-IIb and PiT2 expressions, respectively. Supplemental P increased (P=0.065) the protein abundance of PiT2 and enhanced (P<0.0001) P absorption in primary cultured duodenal epithelial cell of chick embryos. Furthermore, NaP-IIb silencing decreased (P=0.07) P absorption across duodenal epithelial cell monolayers, while PiT2 silencing had no effect (P=0.345). It is concluded that the NaP-IIb, but not PiT2, might be directly involved in the P absorption of chick duodenal epithelial cells.http://www.sciencedirect.com/science/article/pii/S2095311921637711broilerphosphorus transporterphosphorus absorptionprimary cultured duodenal epithelial cell
spellingShingle Ting-ting LI
Na LU
Yu-xin SHAO
Li-yang ZHANG
Lin LU
Zong-ping LIU
Xu-gang LUO
Xiu-dong LIAO
Effect of the gene silencing of phosphorus transporters on phosphorus absorption across primary cultured duodenal epithelial cell monolayers of chick embryos
Journal of Integrative Agriculture
broiler
phosphorus transporter
phosphorus absorption
primary cultured duodenal epithelial cell
title Effect of the gene silencing of phosphorus transporters on phosphorus absorption across primary cultured duodenal epithelial cell monolayers of chick embryos
title_full Effect of the gene silencing of phosphorus transporters on phosphorus absorption across primary cultured duodenal epithelial cell monolayers of chick embryos
title_fullStr Effect of the gene silencing of phosphorus transporters on phosphorus absorption across primary cultured duodenal epithelial cell monolayers of chick embryos
title_full_unstemmed Effect of the gene silencing of phosphorus transporters on phosphorus absorption across primary cultured duodenal epithelial cell monolayers of chick embryos
title_short Effect of the gene silencing of phosphorus transporters on phosphorus absorption across primary cultured duodenal epithelial cell monolayers of chick embryos
title_sort effect of the gene silencing of phosphorus transporters on phosphorus absorption across primary cultured duodenal epithelial cell monolayers of chick embryos
topic broiler
phosphorus transporter
phosphorus absorption
primary cultured duodenal epithelial cell
url http://www.sciencedirect.com/science/article/pii/S2095311921637711
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