Page 50 - 《中国药房》2025年22期
P. 50

红景天苷通过 VIP-cAMP 通路对大鼠腮腺放射性损伤的改善作

          用及机制
                        Δ


                                            1
                                   1
                                                    3
                                                             2
          张春英 ,阴广维 ,陈 红 ,尤鸣达 ,刘金凤 ,张亚昆 ,胡耀杰 (1. 唐山市工人医院头颈外科,河北 唐山
                                                                     1 #
                           2
                 1*
          063000;2.唐山市工人医院外科,河北 唐山 063000;3.华北理工大学附属医院外科,河北 唐山 063000)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2025)22-2796-06
          DOI  10.6039/j.issn.1001-0408.2025.22.08
          摘   要  目的  探讨红景天苷对大鼠腮腺放射性损伤的改善作用及机制。方法  将大鼠随机分为正常组、放射组、红景天苷低剂量
         (红景天苷-L,50 mg/kg)组、红景天苷高剂量(红景天苷-H,100 mg/kg)组、红景天苷-H+抑制剂(100 mg/kg 红景天苷+0.1 µmol/kg
          H-89)组,每组10只。除正常组外,其余各组大鼠通过放射线照射构建腮腺放射性损伤模型。各组大鼠腹腔注射相应药物或生理
          盐水,每日1次,连续40 d。末次给药后,检测血清中活性氧(ROS)、环磷酸腺苷(cAMP)、超氧化物歧化酶(SOD)、淀粉酶水平,观
          察腮腺组织病理学变化,检测腮腺组织细胞凋亡率和其中B细胞淋巴瘤2(Bcl-2)及其相关X蛋白(Bax)表达情况,白细胞介素6
         (IL-6)、肿瘤坏死因子α(TNF-α)mRNA表达水平,以及Ⅲ型胶原蛋白(Col Ⅲ)、血管活性肠肽(VIP)蛋白表达水平和cAMP依赖性
          蛋白激酶(PKA)磷酸化水平。结果  与正常组比较,放射组大鼠 ROS、淀粉酶水平,细胞凋亡率、Bax 表达水平和 IL-6、TNF-α
          mRNA表达水平以及Col Ⅲ蛋白表达水平均显著升高,cAMP、SOD水平,Bcl-2表达水平和VIP蛋白表达水平及PKA磷酸化水平
          均显著降低(P<0.05);与放射组比较,红景天苷-L组和红景天苷-H组大鼠上述指标均显著改善(P<0.05),且红景天苷-H组改善
          更明显(P<0.05);抑制剂H-89显著逆转了红景天苷-H组大鼠上述指标的变化(P<0.05)。结论  红景天苷可有效改善大鼠的腮
          腺放射性损伤,其机制可能与激活VIP-cAMP通路有关。
          关键词  红景天苷;放射性损伤;腮腺;VIP-cAMP通路

          Improvement effect and mechanism of salidroside on radiation-induced parotid gland injury in rats by VIP-
          cAMP pathway
                                          2
                                                                                  3
                           1
                                                                                                 2
                                                       1
                                                                     1
          ZHANG Chunying ,YIN Guangwei ,CHEN Hong ,YOU Mingda ,LIU Jinfeng ,ZHANG Yakun ,HU Yaojie           1
         (1. Dept. of Head and Neck Surgery, Tangshan Workers’ Hospital, Hebei Tangshan 063000, China;2. Dept. of
          Surgery,  Tangshan  Workers’  Hospital,  Hebei  Tangshan  063000,  China;3.  Dept.  of  Surgery,  the  Affiliated
          Hospital of North China University of Science and Technology, Hebei Tangshan 063000, China)
          ABSTRACT    OBJECTIVE  To  explore  the  improvement  effect  and  mechanism  of  salidroside  on  radiation-induced  parotid  gland
          injury  in  rats.  METHODS  Rats  were  randomly  assigned  into  normal  group,  radiation  group,  salidroside  low-dose (salidroside-L,
          50 mg/kg) group, salidroside high-dose (salidroside-H, 100 mg/kg) group, and salidroside-H+inhibitor (100 mg/kg salidroside+0.1
          µmol/kg H-89) group, with 10 rats in each group. Except for the normal group, rats in the other groups were subjected to radiation
          exposure  to  establish  a  model  of  radiation-induced  parotid  gland  injury.  Rats  in  each  group  were  intraperitoneally  injected  with  the
          corresponding  drug  or  normal  saline,  once  a  day,  for  40  consecutive  days.  After  the  last  administration,  the  levels  of  reactive
          oxygen  species (ROS),  cyclic  adenosine  monophosphate (cAMP),  superoxide  dismutase (SOD),  and  amylase  in  serum  were
          detected;  the  pathological  changes  of  parotid  gland  tissue  were  observed;  the  apoptosis  rate  of  parotid  gland  tissue  cells,  the
          expression levels of B-cell lymphoma-2 (Bcl-2) and its associated X protein (Bax), mRNA expression levels of interleukin-6 (IL-
          6) and tumor necrosis factor-α (TNF-α), the protein expression levels of type Ⅲ collagen (Col Ⅲ), vasoactive intestinal peptide
         (VIP),  and  the  phosphorylation  level  of  protein  kinase A (PKA)  in  parotid  gland  tissue  were  determined.  RESULTS  Compared
          with normal group, the levels of ROS, amylase, apoptosis rate, Bax expression level, mRNA expression levels of IL-6 and TNF-
                                                              α,  and  protein  expression  level  of  Col  Ⅲ  in  the  radiation
              Δ 基金项目 河北省医学科学研究课题(No.20240944)                 group were significantly increased, while the levels of cAMP,
             *第一作者 副主任医师,硕士。研究方向:腮腺损伤方向基础实
                                                              SOD, Bcl-2 expression level, VIP protein expression level and
          验研究。E-mail:vf9214@sina.com
                                                              PKA  phosphorylation  level  were  significantly  decreased (P<
              # 通信作者 主任医师,硕士。研究方向:腮腺损伤方向基础实验
          研究。E-mail:Hu_yyjj@126.com                           0.05).  Compared  with  radiation  group,  the  above  indicators  in


          · 2796 ·    China Pharmacy  2025 Vol. 36  No. 22                            中国药房  2025年第36卷第22期
   45   46   47   48   49   50   51   52   53   54   55