Platycodon grandiflorus polysaccharides deeply participate in the anti-chronic bronchitis effects of platycodon grandiflorus decoction, a representative of “the lung and intestine are related”

Platycodon grandiflorus (Jacq.) A. DC. (PG) root is one of the most commonly used medicine-food materials for respiratory discomfort in Asia, usually in the form of a decoction or leaching solution. As everyone knows, both of decoction and leaching solution is a polyphase dispersion system, containi...

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Main Authors: Yang Liu, Qingqing Chen, Rongrong Ren, Qingqing Zhang, Guiming Yan, Dengke Yin, Mingyan Zhang, Ye Yang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-09-01
Series:Frontiers in Pharmacology
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Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2022.927384/full
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author Yang Liu
Qingqing Chen
Rongrong Ren
Qingqing Zhang
Guiming Yan
Dengke Yin
Dengke Yin
Mingyan Zhang
Ye Yang
Ye Yang
Ye Yang
author_facet Yang Liu
Qingqing Chen
Rongrong Ren
Qingqing Zhang
Guiming Yan
Dengke Yin
Dengke Yin
Mingyan Zhang
Ye Yang
Ye Yang
Ye Yang
author_sort Yang Liu
collection DOAJ
description Platycodon grandiflorus (Jacq.) A. DC. (PG) root is one of the most commonly used medicine-food materials for respiratory discomfort in Asia, usually in the form of a decoction or leaching solution. As everyone knows, both of decoction and leaching solution is a polyphase dispersion system, containing low-molecular-weight water-soluble active ingredients and hydrophilic macromolecules. This study aimed to discuss the synergistic effect of Platycodon grandiflorus polysaccharide (PGP) and platycodin D (PD) in PG decoction against chronic bronchitis (CB) and the mechanism underlying. A series of PGP, PD, and PGD + PD suspensions were administrated to CB model rats, on the levels of whole animal and in situ intestinal segment with or without mesenteric lymphatic vessels ligation. It exhibited that PGP exhibited synergistic effects with PD, on improving the histopathological abnormity, mucus secretion excess, and immunological imbalance in lung of CB model rat, closely associated with its modulations on the mucosal immunity status in small intestine. The polysaccharide macromolecules in PG decoction or leaching solution should be responsible for the modulation of pulmonary immune state, possibly through the common mucosal immune between small intestine and lung. These results might be a new perspective that illustrates the classical theory of “the lung and intestine are related” in traditional Chinese medicine.
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spelling doaj-art-e243b8781a6146efad769d2d4df94cf32025-08-20T02:55:49ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122022-09-011310.3389/fphar.2022.927384927384Platycodon grandiflorus polysaccharides deeply participate in the anti-chronic bronchitis effects of platycodon grandiflorus decoction, a representative of “the lung and intestine are related”Yang Liu0Qingqing Chen1Rongrong Ren2Qingqing Zhang3Guiming Yan4Dengke Yin5Dengke Yin6Mingyan Zhang7Ye Yang8Ye Yang9Ye Yang10School of Pharmacy, Anhui University of Chinese Medicine, Hefei, ChinaSchool of Pharmacy, Anhui University of Chinese Medicine, Hefei, ChinaSchool of Pharmacy, Anhui University of Chinese Medicine, Hefei, ChinaSchool of Pharmacy, Anhui University of Chinese Medicine, Hefei, ChinaSchool of Nursing, Anhui University of Chinese Medicine, Hefei, ChinaSchool of Pharmacy, Anhui University of Chinese Medicine, Hefei, ChinaAnhui Provincial Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, ChinaSchool of Pharmacy, Anhui University of Chinese Medicine, Hefei, ChinaSchool of Pharmacy, Anhui University of Chinese Medicine, Hefei, ChinaSchool of Nursing, Anhui University of Chinese Medicine, Hefei, ChinaState Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, ChinaPlatycodon grandiflorus (Jacq.) A. DC. (PG) root is one of the most commonly used medicine-food materials for respiratory discomfort in Asia, usually in the form of a decoction or leaching solution. As everyone knows, both of decoction and leaching solution is a polyphase dispersion system, containing low-molecular-weight water-soluble active ingredients and hydrophilic macromolecules. This study aimed to discuss the synergistic effect of Platycodon grandiflorus polysaccharide (PGP) and platycodin D (PD) in PG decoction against chronic bronchitis (CB) and the mechanism underlying. A series of PGP, PD, and PGD + PD suspensions were administrated to CB model rats, on the levels of whole animal and in situ intestinal segment with or without mesenteric lymphatic vessels ligation. It exhibited that PGP exhibited synergistic effects with PD, on improving the histopathological abnormity, mucus secretion excess, and immunological imbalance in lung of CB model rat, closely associated with its modulations on the mucosal immunity status in small intestine. The polysaccharide macromolecules in PG decoction or leaching solution should be responsible for the modulation of pulmonary immune state, possibly through the common mucosal immune between small intestine and lung. These results might be a new perspective that illustrates the classical theory of “the lung and intestine are related” in traditional Chinese medicine.https://www.frontiersin.org/articles/10.3389/fphar.2022.927384/fullPlatycodon grandiflorus polysaccharidechronic bronchitiscommon mucosal immunitymesenteric lymphatic vessel ligationTh1/Th2 balance
spellingShingle Yang Liu
Qingqing Chen
Rongrong Ren
Qingqing Zhang
Guiming Yan
Dengke Yin
Dengke Yin
Mingyan Zhang
Ye Yang
Ye Yang
Ye Yang
Platycodon grandiflorus polysaccharides deeply participate in the anti-chronic bronchitis effects of platycodon grandiflorus decoction, a representative of “the lung and intestine are related”
Frontiers in Pharmacology
Platycodon grandiflorus polysaccharide
chronic bronchitis
common mucosal immunity
mesenteric lymphatic vessel ligation
Th1/Th2 balance
title Platycodon grandiflorus polysaccharides deeply participate in the anti-chronic bronchitis effects of platycodon grandiflorus decoction, a representative of “the lung and intestine are related”
title_full Platycodon grandiflorus polysaccharides deeply participate in the anti-chronic bronchitis effects of platycodon grandiflorus decoction, a representative of “the lung and intestine are related”
title_fullStr Platycodon grandiflorus polysaccharides deeply participate in the anti-chronic bronchitis effects of platycodon grandiflorus decoction, a representative of “the lung and intestine are related”
title_full_unstemmed Platycodon grandiflorus polysaccharides deeply participate in the anti-chronic bronchitis effects of platycodon grandiflorus decoction, a representative of “the lung and intestine are related”
title_short Platycodon grandiflorus polysaccharides deeply participate in the anti-chronic bronchitis effects of platycodon grandiflorus decoction, a representative of “the lung and intestine are related”
title_sort platycodon grandiflorus polysaccharides deeply participate in the anti chronic bronchitis effects of platycodon grandiflorus decoction a representative of the lung and intestine are related
topic Platycodon grandiflorus polysaccharide
chronic bronchitis
common mucosal immunity
mesenteric lymphatic vessel ligation
Th1/Th2 balance
url https://www.frontiersin.org/articles/10.3389/fphar.2022.927384/full
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