1.广州中医药大学中药学院,广东 广州 510006
2.海南医科大学第二附属医院药学部,海南 海口 570145
卢若亚(1998年生),女;研究方向:小分子药物发现与优化;E-mail:20231120264@stu.gzucm.edu.cn
曹影影(1990年生),女;研究方向:中药药理学;E-mail:caoyingying@gzucm.edu.cn
何细新(1972年生),男;研究方向:天然药物化学;E-mail:mark07@gzucm.edu.cn
收稿:2026-01-13,
修回:2026-02-14,
录用:2026-03-05,
网络首发:2026-04,
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卢若亚, 杨璐, 吴永春, 等. 桑枝化学成分及其对磷酸二酯酶4活性的抑制[J/OL]. 中山大学学报(自然科学版)(中英文), 2026,1-7.
LU Ruoya, YANG Lu, WU Yongchun, et al. Chemical constituents of Ramulus Mori and their inhibitory activity against phosphodiesterase 4[J/OL]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2026, 1-7.
卢若亚, 杨璐, 吴永春, 等. 桑枝化学成分及其对磷酸二酯酶4活性的抑制[J/OL]. 中山大学学报(自然科学版)(中英文), 2026,1-7. DOI: 10.11714/acta.snus.ZR20260017.
LU Ruoya, YANG Lu, WU Yongchun, et al. Chemical constituents of Ramulus Mori and their inhibitory activity against phosphodiesterase 4[J/OL]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2026, 1-7. DOI: 10.11714/acta.snus.ZR20260017.
为研究桑枝的化学成分及其对磷酸二酯酶4(PDE4)的抑制活性,综合运用正相硅胶、反相硅胶、凝胶等多种色谱技术对桑枝进行分离纯化,通过NMR、MS等波谱数据并结合文献比对鉴定化合物结构;以氚标记的3',5'-环磷酸腺苷(
3
H-cAMP)为底物,采用液体闪烁计数法测定化合物体外PDE4抑制活性。结果表明,从桑枝醇提物的乙酸乙酯部位分离并鉴定8个化合物,分别为:桑根皮素(
1
)、Mornigrol E(
2
)、Mornigrol F(
3
)、桑皮酮(
4
)、桑辛素M-3'-
O
-
β
-D-葡萄糖苷(
5
)、顺式氧化白藜芦醇-4-
O
-
β
-D-葡萄糖苷(
6
)、Steppogenin(
7
)、二氢桑色素(
8
),其中化合物
6
为首次从桑属植物中分离得到,异戊烯基黄酮类化合物
1
、
3
和
4
显示良好的PDE4抑制作用,半数抑制浓度(IC
50
)值分别为(1.02±0.20)、(0.50±0.07)和(0.38±0.06) μmol/L,具有作为PDE4抑制剂先导化合物的研究潜力。
To investigate the chemical constituents of mulberry branches and their inhibitory activity against phosphodiesterase 4(PDE4), various chromatographic techniques including normal phase silica gel, reversed phase silica gel, and gel were comprehensively utilized for the separation and purification of mulberry branches. The structures of the compounds were identified through spectral data such as NMR and MS, combined with literature comparison. Using tritiated 3',5'-cyclic adenosine monophosphate(
3
H-cAMP) as the substrate, the PDE4 inhibitory activity of the compounds was determined in vitro using liquid scintillation counting. The results showed that eight compounds were isolated and identified from the ethyl acetate fraction of the mulberry branch ethanol extract, namely: Morusin(
1
), Mornigrol E(
2
), Mornigrol F(
3
), Kuwanon C(
4
), Moracin M-3'-
O-β-
D-glucopyranoside(
5
),
cis
-oxyreseratrol-4-
O-β-
D-glucopyranoside(
6
), Steppogenin(
7
), and Dihydromorin(
8
). Compound
6
was isolated from mulberry plants for the first time. The isopentenyl flavonoids
1
,
3
, and
4
exhibited good PDE4 inhibitory activity, with half-inhibitory concentrations(IC
50
) values of(1.02±0.20),(0.50±0.07), and(0.38±0.06) μmol/L, respectively, indicating their potential as lead compounds for PDE4 inhibitors.
陈思竹 , 王雪 , 吴银飞 , 等 , 2025 . α-倒捻子素C3和C6位衍生物的合成及其抑制磷酸二酯酶4活性 [J]. 中山大学学报(自然科学版中英文) , 64 ( 3 ): 26 - 35 .
邓金辉 , 黄悦 , 梁津豪 , 等 , 2022 . α-倒捻子素衍生物合成及其抑制磷酸二酯酶4活性研究 [J]. 中山大学学报(自然科学版中英文) , 61 ( 3 ): 53 - 61 .
国家药典委员会 , 2025 . 中华人民共和国药典:一部 [S]. 北京 : 中国医药科技出版社 .
郭明鑫 , 吴霞 , 沈颖 , 等 , 2023 . 桑枝的化学成分、药理活性研究进展及质量标志物预测分析 [J]. 西北药学杂志 , 38 ( 5 ): 224 - 229 .
黄尚瑛 , 刘兴福 , 陈思竹 , 等 , 2025 . 芒果苷元衍生物的设计合成及其抑制磷酸二酯酶4活性 [J]. 中山大学学报(自然科学版中英文) , 64 ( 4 ): 79 - 90 .
AN X , YANG X , DING X J . 2023 . Ramulus Mori(Sangzhi) alkaloids tablets for diabetes mellitus: A regulatory perspective [J]. Fitoterapia , 166 : 105444 .
BASNET P , KADOTA S , TERASHIMA S , et al , 1993 . Two new 2-arylbenzofuran derivatives from hypoglycemic activity-bearing fractions of Morus insignis [J]. Chem Pharm Bull , 41 ( 7 ): 1238 - 1243 .
BLAUVELT A , LANGLEY R G , GORDON K B , et al , 2023 . Next generation PDE4 inhibitors that selectively target PDE4B/D subtypes: A narrative review [J]. Dermatol Ther , 13 ( 12 ): 3031 - 3042 .
CHEN S K , ZHAO P , SHAO Y X , et al , 2012 . Moracin M from Morus alba L . is a natural phosphodiesterase-4 inhibitor [J]. Bioorg Med Chem Lett , 22 ( 9 ): 3261 - 3264 .
DU B , LUO M , REN C , et al , 2023 . PDE4 inhibitors for disease therapy: Advances and future perspective [J]. Future Med Chem , 15 ( 13 ): 1185 - 1207 .
FENG Z , PENG S , WU Z , et al , 2021 . Ramulus Mori polysaccharide-loaded PLGA nanoparticles and their anti-inflammatory effects in vivo [J]. Int J Biol Macromol , 182 : 2024 - 2036 .
GUO S , LIU L , ZHANG S , et al , 2019 . Chemical characterization of the main bioactive polyphenols from the roots of Morus australis (mulberry) [J]. Food Funct , 10 ( 10 ): 6915 - 6926 .
HAKIM E H , ACHMAD S A , AIMI N , et al , 2004 . Regioselective glucosylation of oxyresveratrol by cell suspension cultures of Solanum mammosum [J]. J Chem Res , 2004( 10 ): 706 - 707 .
LI E , LI S , WANG S , et al , 2023 . Antibacterial effects of Ramulus Mori oligosaccharides against Streptococcus mutans [J]. Foods , 12 ( 17 ): 3182 .
LI Z , CAI Y H , CHENG Y K , et al , 2013 . Identification of novel phosphodiesterase-4D inhibitors prescreened by molecular dynamics-augmented modeling and validated by bioassay [J]. J Chem Inf Model , 53 ( 4 ): 972 - 981 .
JEONG S H , RYU Y B , CURTIS-LONG M J , et al , 2009 . Tyrosinase inhibitory polyphenols from roots of Morus lhou [J]. J Agric Food Chem , 57 ( 4 ): 1195 - 1203 .
QU L , LIANG X , TIAN G , et al , 2021 . Efficacy and safety of mulberry twig alkaloids tablet for the treatment of type 2 diabetes: A multicenter, randomized, double-blind, double-dummy, and parallel controlled clinical trial [J]. Diabetes Care , 44 ( 6 ): 1324 - 1333 .
SCHEPERS M , PAES D , TIANE A , et al , 2023 . Selective PDE4 subtype inhibition provides new opportunities to intervene in neuroinflammatory versus myelin damaging hallmarks of multiple sclerosis [J]. Brain Behav Immun , 109 : 1 - 22 .
SILVERBERG J I , FRENCH L E , WARREN R B , et al , 2023 . Pharmacology of orismilast, a potent and selective PDE4 inhibitor [J]. Eur Acad Dermatol Venereol , 37 ( 4 ): 721 - 729 .
SUN Q W , LIAN C F , CHEN Y M , et al , 2022 . Ramulus Mori ( Sangzhi) alkaloids ameliorate obesity-linked adipose tissue metabolism and inflammation in mice [J]. Nutrients , 14 ( 23 ): 5050 .
TAN B X , YANG L , HUANG Y Y , et al , 2017 . Bioactive triterpenoids from the leaves of Eriobotrya japonica as the natural PDE4 inhibitors . Nat Prod Res , 31 ( 24 ): 2836 - 2841 .
WANG L , GONG T , CHEN R Y , 2009 . Two new prenylflavonoids from Morus nigra L [J]. Chin Chemical Lett , 20 ( 12 ): 1469 - 1471 .
ZHANG R , LI H , ZHANG X , et al , 2021 . Design, synthesis, and biological evaluation of tetrahydroisoquinolines derivatives as novel, selective PDE4 inhibitors for antipsoriasis treatment [J]. Eur J Med Chem , 211 : 113004 .
ZHENG Z P , ZHU Q , FAN C L , et al , 2011 . Phenolic tyrosinase inhibitors from the stems of Cudrania cochinchinensis [J]. Food Funct , 2 ( 5 ): 259 - 264 .
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