山沉香超微粉、原粉與沉香超微粉、原粉藥理學(xué)作用對(duì)比研究
李 凌,范 蕾,鞠愛華
(內(nèi)蒙古醫(yī)科大學(xué),內(nèi)蒙古呼和浩特 010110)
T7中藥及網(wǎng)絡(luò)藥理學(xué)
T7-1
山沉香超微粉、原粉與沉香超微粉、原粉藥理學(xué)作用對(duì)比研究
李 凌,范 蕾,鞠愛華
(內(nèi)蒙古醫(yī)科大學(xué),內(nèi)蒙古呼和浩特 010110)
摘要:目的研究山沉香超微粉(SU,以下同)、原粉(SF,以下同)抗心肌缺血、常壓抗缺氧、鎮(zhèn)痛、鎮(zhèn)靜等藥理學(xué)作用,并與沉香超微粉(AU,以下同)、原粉(AF,以下同)作對(duì)比研究。方法各實(shí)驗(yàn)中動(dòng)物均分為11個(gè)實(shí)驗(yàn)組:SU 1.5,0.75和0.375 g·kg-1三組,SF1.5 g·kg-1組,AU 1.5,0.75和0.375 g·kg-1三組,AF1.5 g·kg-1組,陽(yáng)性對(duì)照組,模型對(duì)照組及空白組。各組按不同劑量藥物連續(xù)灌胃給藥7 d后,采用結(jié)扎大鼠冠脈方法,分別測(cè)定各實(shí)驗(yàn)組大鼠心梗面積、心電圖、血清CK、LDH、SOD,并觀察心肌組織病理切片,對(duì)比SU與AU對(duì)心肌缺血大鼠心臟的保護(hù)作用;采用常壓耐缺氧法觀察兩種超微粉對(duì)小鼠存活時(shí)間的影響;采用醋酸扭體法觀察二者對(duì)小鼠扭體次數(shù)及疼痛潛伏期的影響;采用戊巴比妥鈉協(xié)助睡眠法,觀察兩種超微粉對(duì)睡眠潛伏期及睡眠時(shí)間的影響。結(jié)果山沉香超微粉、原粉與沉香超微粉、原粉均有不同程度的抗缺氧、保護(hù)心肌缺血大鼠心臟、鎮(zhèn)痛、鎮(zhèn)靜等作用。1.各給藥組均對(duì)大鼠急性心肌缺血有保護(hù)作用:山沉香和沉香給藥組均顯示出較模型組低的偏移值,與模型組相比,在大部分時(shí)間點(diǎn)上有顯著性差異。模型組在缺血損傷后血清中CK活性顯著升高,而山沉香、沉香各給藥組均能降低血清中CK含量,與模型組比較均有極顯著差異,AU 0.75 g·kg-1和AF給藥組效果明顯優(yōu)于山沉香對(duì)應(yīng)給藥組(P<0.01),而SU 0.375和0.125 g·kg-1給藥組與對(duì)應(yīng)劑量沉香給藥組作用相當(dāng)。模型組在缺血損傷后血清中LDH活性顯著升高,山沉香、沉香給藥組均能降低血清LDH含量,與模型組比較均有極顯著差異(P<0.001)。同時(shí),AU 0.75 g·kg-1給藥組作用優(yōu)于SU 0.75 g·kg-1給藥組(P<0.01),SU 0.375 g·kg-1給藥組的作 用與 AU 0.375 g·kg-1給藥組的相當(dāng),SU 0.125 g·kg-1給藥組的作用優(yōu)于AU 0.125 g·kg-1(P<0.01),AF給藥組的作用明顯優(yōu)于SF(P<0.05)。心肌缺血后,模型組的血清SOD活性顯著下降,而山沉香和沉香各給藥組與模型組相比SOD活性均有顯著提高。AU 0.375 g·kg-1給藥組作用優(yōu)于SU 0.375 g·kg-1(P<0.05),山沉香其他給藥組與沉香對(duì)應(yīng)劑量給藥組作用相當(dāng)。山沉香和沉香給藥組均能縮小大鼠急性心肌缺血的梗死面積,并與模型組有顯著差異(P<0.01)。2.各給藥組對(duì)小鼠存活時(shí)間均有延長(zhǎng)作用(P<0.05),SU 1.5 g·kg-1組與AU 1.5 g·kg-1組作用相當(dāng)。而SU 0.75和0.375 g·kg-1組均優(yōu)于相同劑量的AU組(P<0.05)。SF組與AF組作用相當(dāng)。3.鎮(zhèn)痛作用:(1)對(duì)潛伏期影響:SU 1.5和0.75 g·kg-1,AU 1.5,0.75和0.375 g·kg-1對(duì)醋酸致小鼠扭體潛伏期有明顯延長(zhǎng)作用(P<0.05);SU 0.75和0.375 g·kg-1組與相同劑量AU組(0.75和0.375 g·kg-1)作用相當(dāng)。(2)對(duì)扭體次數(shù)影響:山沉香與沉香對(duì)應(yīng)劑量組之間作用相當(dāng)。4.鎮(zhèn)靜作用:(1)各給藥組能顯著增加小鼠戊巴比妥鈉閾劑量下入睡百分率,對(duì)閾下劑量戊巴比妥鈉致小鼠睡眠有協(xié)同作用(與模型組相比,P<0.05);山沉香各組與沉香各對(duì)應(yīng)組之間睡眠百分率無(wú)統(tǒng)計(jì)學(xué)差異。(2)各給藥組對(duì)閾劑量戊巴比妥鈉致小鼠入睡的潛伏期均有明顯縮短作用(與模型組相比,P< 0.05)。山沉香各組縮短作用均優(yōu)于沉香各對(duì)應(yīng)組(P< 0.05)。而且,各給藥組對(duì)閾劑量戊巴比妥鈉致小鼠睡眠持續(xù)時(shí)間均有明顯延長(zhǎng)作用(P<0.05)。SU 0.75和0.375 g· kg-1組延長(zhǎng)作用與相同劑量AU組相當(dāng),SF延長(zhǎng)作用大于AF組(P<0.05)。結(jié)論山沉香與沉香均具有抗缺氧、保護(hù)心肌缺血大鼠心臟、鎮(zhèn)痛、鎮(zhèn)靜等作用,SU和AU與SF和AF在同劑量時(shí)或超微粉是原粉劑量的1/2、1/4時(shí),超微粉在抗缺氧、保護(hù)心肌缺血大鼠心臟、鎮(zhèn)痛、鎮(zhèn)靜等作用方面能夠顯示出優(yōu)于原粉的藥理學(xué)作用。SU三個(gè)劑量組中至少2組劑量呈現(xiàn)等于或大于AU的作用,且SU能在鎮(zhèn)靜、鎮(zhèn)痛、常壓抗缺氧、心肌缺血保護(hù)作用等方面變現(xiàn)與AU相似的作用。
關(guān)鍵詞:山沉香;沉香;超微粉;心肌缺血;鎮(zhèn)痛;鎮(zhèn)靜;耐缺氧
T7-2
藏藥保肝作用及機(jī)制研究進(jìn)展
袁東亞,趙 勤,孫芳云
(西藏民族大學(xué)醫(yī)學(xué)部藏藥篩選實(shí)驗(yàn)室,陜西咸陽(yáng)712082)
摘要:急慢性肝病的發(fā)病率在全球范圍內(nèi)呈上升趨勢(shì),嚴(yán)重威脅到人類的健康,藥物是治療急慢性肝病的重要手段。干擾素治療率低、藥價(jià)貴、副作用多,應(yīng)用指征嚴(yán)格,很難廣泛使用,肝炎根治的希望在中醫(yī)藥。藏藥茵陳、藏藥洪連、野生平蓋靈芝、苦空確屯卡察爾、七味鐵屑丸、二十五味松石丸、阿夏塞爾郡等具有促進(jìn)膽汁分泌、保護(hù)膽管上皮細(xì)胞、減少炎癥發(fā)生,增強(qiáng)單核巨噬細(xì)胞的吞噬作用、降低細(xì)胞膜通透性、抑制細(xì)胞膜脂質(zhì)過(guò)氧化、減輕肝纖維化程度、改善肝組織病理變化,從而對(duì)急、慢性肝損傷起到保護(hù)作用。本文就上述藥物保肝作用機(jī)制進(jìn)行系統(tǒng)綜述,以期為進(jìn)一步促進(jìn)保肝藥物研發(fā)提供依據(jù)。
關(guān)鍵詞:肝炎;干擾素;肝硬化;自由基;藏藥
T7-3
十全大補(bǔ)丸對(duì)麻醉大鼠血壓的影響
謝人明,李 瑩,謝 沁,謝德尚,張若楠,席軍敏
(陜西省中醫(yī)藥研究院,陜西西安 710003)
摘要:目的觀察十全大補(bǔ)丸對(duì)健康成年雄性大鼠血壓的影響。方法麻醉大鼠十二指腸給予十全大補(bǔ)丸不同劑量,以八珍益母丸作為陽(yáng)性中藥對(duì)照組,以尼莫地平作為陽(yáng)性西藥對(duì)照組,測(cè)定收縮壓、舒張壓、平均壓、脈壓差(收縮壓-舒張壓)、心率,計(jì)算心肌張力時(shí)間指數(shù),并進(jìn)行統(tǒng)計(jì)學(xué)處理。結(jié)果十全大補(bǔ)丸,八珍益母丸有升壓的作用,對(duì)心肌張力時(shí)間指數(shù)無(wú)影響。尼莫地平有降壓,減慢心率,降低心肌張力時(shí)間指數(shù)的作用。結(jié)論十全大補(bǔ)丸對(duì)大鼠血壓有升高的作用。提示可適用于低血壓貧血的人群。高血壓病人禁用。
關(guān)鍵詞:十全大補(bǔ)丸;血管
T7-4
理氣活血中藥組分對(duì)球囊損傷合并糖尿病高脂飲食大鼠下肢缺血模型的影響
馬魯波1,劉劍剛2,于春利1,張 童1,莊百溪1
(中國(guó)中醫(yī)科學(xué)院1.西苑醫(yī)院周圍血管科,2.西苑醫(yī)院心血管病中心,北京 100091)
摘要:目的利用實(shí)驗(yàn)性高脂糖尿病慢性下肢缺血狹窄模型,觀察理氣活血中藥組分配伍對(duì)糖尿病下肢缺血腔內(nèi)再狹窄的影響,初步探討其對(duì)血管內(nèi)皮功能的保護(hù)作用及抑制MCP-1的表達(dá)炎癥信號(hào)轉(zhuǎn)導(dǎo)機(jī)制。方法SD種大鼠,雄性,清潔級(jí),以高脂飲食誘導(dǎo)加小劑量鏈脲佐菌素(STZ)建立高脂糖尿病大鼠模型,確定以血管外留置φ0.014超滑導(dǎo)絲結(jié)扎,球囊拉傷血管動(dòng)脈內(nèi)皮制作大鼠下肢缺血模型。實(shí)驗(yàn)分為假手術(shù)組;模型動(dòng)物組;陽(yáng)性藥物對(duì)照組(辛伐他?。?;理氣活血中藥組分配伍大小劑量組(12.15 g生藥/kg,4.05 g生藥/kg),喂食4周,對(duì)大鼠經(jīng)頸動(dòng)脈插管行動(dòng)脈造影觀察大鼠下肢缺血后血流側(cè)支循環(huán)情況。然后,病理解剖觀察側(cè)支循環(huán),病理包埋染色觀察股動(dòng)脈血管情況。利用RT-PCR檢測(cè)下肢動(dòng)脈的MCP-1,STAT3和JAK2基因表達(dá);Westernblotting觀察下肢動(dòng)脈血管的JAK2,P-Stat3和MCP1蛋白表達(dá)。結(jié)果和模型組比較,理氣活血中藥組分大、小劑量有不同程度調(diào)節(jié)血脂和血糖的作用,模型組的總膽固醇由(3.10±0.52)mmol·L-1分別降至(2.19±0.65)mmol·L-1和(2.28±0.85)mmol·L-1,血糖水平由(23.90±8.68)mmol·L-1分別降至(19.69±5.02)mmol·L-1和(21.16±6.26)mmol·L-1;動(dòng)脈血管造影顯示大鼠的下肢血流側(cè)支循環(huán)交模型組增加,病理顯示血管內(nèi)皮損傷有一定程度的修復(fù);抑制血管PSTAT3蛋白磷酸化和MCP-1蛋白的表達(dá)。結(jié)論理氣活血中藥組分可干預(yù)JAK/STAT通路并抑制JAK2和MCP-1的表達(dá),干預(yù)STAT3磷酸化,降低和調(diào)節(jié)脂質(zhì)代謝紊亂和糖代謝異常,改善損傷的動(dòng)脈內(nèi)膜病理狀況,增加側(cè)枝血液循環(huán),保護(hù)高脂糖尿病導(dǎo)致的下肢動(dòng)脈缺血的血管功能。
關(guān)鍵詞:理氣活血中藥;高脂模型;球囊損傷;下肢缺血;JAK2/STAT3信號(hào)通路
T7-5
斑馬魚模型體內(nèi)評(píng)價(jià)野生冬蟲夏草的功效
劉洪翠,黃燕烽,朱曉宇,李春?jiǎn)?/p>
(杭州環(huán)特生物科技股份有限公司,浙江杭州 311231)
摘要:目的冬蟲夏草又名蟲草,是我國(guó)民間慣用的一種名貴滋補(bǔ)藥材,本研究欲利用斑馬魚模式動(dòng)物,體內(nèi)評(píng)價(jià)野生冬蟲夏草的功效,包括化療藥(長(zhǎng)春瑞濱)引起的中性粒細(xì)胞減少癥和貧血的改善作用,以及對(duì)巨噬細(xì)胞吞噬功能的促進(jìn)作用。方法蟲草濃度設(shè)置為62.5,125,250,500和1000 μg·mL-1,同時(shí)設(shè)置空白對(duì)照組,給藥方式為水溶;實(shí)驗(yàn)用魚選擇黑色素突變性Albino品系(貧血改善作用評(píng)價(jià)和巨噬細(xì)胞吞噬功能評(píng)價(jià))和中性粒細(xì)胞綠色熒光在轉(zhuǎn)基因MPO品系(中性粒細(xì)胞減少癥改善作用評(píng)價(jià)),斑馬魚年齡均為2 dpf(2 d post-fertilization),每個(gè)濃度處理30尾斑馬魚,藥物處理至實(shí)驗(yàn)終點(diǎn)后(貧血改善和中性粒細(xì)胞減少癥評(píng)價(jià)實(shí)驗(yàn)終點(diǎn)為3 dpf;巨噬細(xì)胞吞噬功能實(shí)驗(yàn)終點(diǎn)為5 dpf),除中性粒細(xì)胞減少癥改善作用評(píng)價(jià)實(shí)驗(yàn)斑馬魚不需染色外,貧血改善作用實(shí)驗(yàn)和巨噬細(xì)胞吞噬功能評(píng)價(jià)實(shí)驗(yàn)斑馬魚分別經(jīng)過(guò)特異性染料進(jìn)行紅細(xì)胞和巨噬細(xì)胞染色。實(shí)驗(yàn)評(píng)價(jià)指標(biāo)為斑馬魚炎癥部位中性粒細(xì)胞數(shù)量、心臟位置紅細(xì)胞染色強(qiáng)度和頭部背面觀吞噬墨汁的巨噬細(xì)胞數(shù)量,隨后對(duì)數(shù)據(jù)進(jìn)行統(tǒng)計(jì)分析,定量評(píng)價(jià)野生冬蟲夏草對(duì)化療藥物引起的中性粒細(xì)胞減少癥和貧血的改善作用,以及對(duì)巨噬細(xì)胞吞噬功能的影響。結(jié)果實(shí)驗(yàn)數(shù)據(jù)顯示,①對(duì)中性粒細(xì)胞減少癥的改善作用:在濃度范圍為62.5~500 μg·mL-1時(shí),對(duì)化療藥物誘發(fā)的斑馬魚中性粒細(xì)胞減少癥無(wú)改善作用;濃度為1000 μg· mL-1時(shí),誘發(fā)斑馬魚全身中性粒細(xì)胞數(shù)量顯著增加(P<0.01),提示蟲草對(duì)化療藥長(zhǎng)春瑞濱引起的斑馬魚中性粒細(xì)胞減少癥具有改善作用。②對(duì)貧血的改善作用:濃度為125 μg·mL-1的蟲草可顯著增加斑馬魚心臟部位紅細(xì)胞數(shù)量(P<0.01),提示該濃度可明顯改善化療藥長(zhǎng)春瑞濱引起的斑馬魚貧血,而其他濃度處理后均無(wú)改善作用。③對(duì)巨噬細(xì)胞吞噬功能的影響:濃度為62.5 μg·mL-1時(shí),對(duì)斑馬魚巨噬細(xì)胞吞噬功能無(wú)改善趨勢(shì);濃度為125 μg·mL-1時(shí),對(duì)斑馬魚巨噬細(xì)胞吞噬功能具有明顯改善作用(P<0.01);而濃度為250~1000 μg·mL-1時(shí),對(duì)斑馬魚巨噬細(xì)胞吞噬功能反而有抑制趨勢(shì),但無(wú)統(tǒng)計(jì)學(xué)差異。結(jié)論野生冬蟲夏草對(duì)化療藥引起的中性粒細(xì)胞減少癥和貧血均有顯著的改善作用,同時(shí)可促進(jìn)巨噬細(xì)胞的吞噬功能。
關(guān)鍵詞:冬蟲夏草;中性粒細(xì)胞減少癥
T7-6
晚期糖基化終產(chǎn)物裂解劑秦皮甲素的安全藥理學(xué)研究
張惠芳,陳俞材,王丹姝,袁天翊,王月華,方蓮花,杜冠華
(中國(guó)醫(yī)學(xué)科學(xué)院北京協(xié)和醫(yī)學(xué)院藥物研究所,藥物靶點(diǎn)研究和新藥篩選北京市重點(diǎn)實(shí)驗(yàn)室,北京 100050)
摘要:目的秦皮甲素是本實(shí)驗(yàn)室通過(guò)高通量藥物篩選得到的一種具有晚期糖基化終產(chǎn)物裂解活性的化合物,在前期的藥效學(xué)實(shí)驗(yàn)中發(fā)現(xiàn)其具有一定的防治糖尿病并發(fā)癥的作用。本實(shí)驗(yàn)通過(guò)觀察秦皮甲素對(duì)多種重要臟器管來(lái)源細(xì)胞的毒副作用,并觀察其對(duì)整體動(dòng)物心血管系統(tǒng)、呼吸系統(tǒng)和神經(jīng)系統(tǒng)的影響,對(duì)其安全藥理學(xué)進(jìn)行評(píng)價(jià)。方法不同的細(xì)胞藥物處理48 h后,倒置顯微鏡觀察細(xì)胞形態(tài);采用MTT法或MTS法檢測(cè)秦皮甲素對(duì)細(xì)胞活力的影響;通過(guò)檢測(cè)細(xì)胞上清液LDH含量評(píng)價(jià)藥物對(duì)細(xì)胞膜損傷程度;以十二指腸給藥方式觀察秦皮甲素對(duì)麻醉大鼠血壓、心電圖、心功能、呼吸幅度和頻率的影響;采用灌胃(ig)給藥的方式觀察秦皮甲素對(duì)小鼠自主活動(dòng)、協(xié)調(diào)運(yùn)動(dòng)和戊巴比妥鈉協(xié)同睡眠的影響。結(jié)果秦皮甲素在濃度為300和1000 μmol·L-1時(shí),對(duì)部分細(xì)胞產(chǎn)生一定的毒性;各劑量秦皮甲素對(duì)麻醉大鼠的心血管系統(tǒng)、呼吸系統(tǒng)無(wú)明顯影響,對(duì)小鼠的神經(jīng)系統(tǒng)也無(wú)明顯影響。結(jié)論細(xì)胞水平,秦皮甲素在300 μmol·L-1以下濃度時(shí),毒性作用較小,可以進(jìn)行相應(yīng)藥效學(xué)評(píng)價(jià);動(dòng)物水平,秦皮甲素對(duì)心血管系統(tǒng)、呼吸系統(tǒng)和中樞神經(jīng)系統(tǒng)無(wú)明顯影響,毒性小,值得進(jìn)一步藥效學(xué)研究。
關(guān)鍵詞:安全藥理學(xué)研究;秦皮甲素;晚期糖基化終產(chǎn)物;細(xì)胞;心血管系統(tǒng);呼吸系統(tǒng);神經(jīng)系統(tǒng)
T7-7
中藥提取物治療男性不育研究進(jìn)展
謝淑武1,曲立娟2,李國(guó)停1,鐘瑞華1,郭湘潔1,李 釗1,馬阿影1,桂幼倫1,朱 焰1
(1.復(fù)旦大學(xué)生殖與發(fā)育研究院上海市計(jì)劃生育科學(xué)研究所生殖藥理組,國(guó)家人口計(jì)生委計(jì)劃生育藥具重點(diǎn)實(shí)驗(yàn)室,上海 200032;2.上海市第八人民醫(yī)院,上海 200235)
摘要:男性不育癥是男科常見病之一,近年來(lái)呈現(xiàn)不斷上升趨勢(shì)。目前,西醫(yī)對(duì)男性不育癥的治療尚缺乏理想療效,而中醫(yī)藥在治療男性不育癥方面發(fā)揮了一定的優(yōu)勢(shì),獲得了滿意的療效。本文就中藥提取物治療男性不育癥作一綜述:枸杞多糖可通過(guò)促進(jìn)損傷細(xì)胞的增殖和上調(diào)生精細(xì)胞中SCF與c-kit表達(dá)來(lái)干預(yù)雷公藤多苷對(duì)生精細(xì)胞的損傷過(guò)程,從而保護(hù)雄性生殖功能。五味子多糖對(duì)環(huán)磷酰胺所致大鼠生精障礙具有明顯的治療作用,其可以使不育大鼠精子密度、精子活率升高,精子畸形率降低,血清FSH和LH水平降低,睪丸組織勻漿中T含量升高,差異均有統(tǒng)計(jì)學(xué)意義,且呈劑量依賴性,其機(jī)制可能與恢復(fù)下丘腦-垂體-性腺軸的調(diào)控功能有關(guān)。淫羊藿苷類成分和黃酮類成分都對(duì)男性不育癥有療效,其中淫羊藿苷對(duì)環(huán)磷酰胺誘導(dǎo)生精障礙的睪丸具有改善睪丸生精小管結(jié)構(gòu)、減少生殖細(xì)胞凋亡、促進(jìn)精子發(fā)生和間質(zhì)細(xì)胞分泌睪酮的功能。菟絲子黃酮能保護(hù)睪丸組織的曲精管、生精細(xì)胞、間質(zhì)細(xì)胞,可以提高大鼠睪丸組織表皮生長(zhǎng)因子(EGF)mRNA及蛋白表達(dá),從而起到保護(hù)睪丸組織及生精功能的作用。
關(guān)鍵詞:中藥提取物;枸杞多糖;五味子多糖;淫羊藿多苷;男性不育
T7-8
針對(duì)不同靶點(diǎn)藥物合用藥效相加的規(guī)律和精確計(jì)算協(xié)同/相加/拮抗效應(yīng)通用方法的建立
袁守軍
(軍事醫(yī)學(xué)科學(xué)院,北京 100850)
摘要:目的難治性疾病如癌癥等,為多靶點(diǎn)疾病。定量評(píng)價(jià)針對(duì)不同靶點(diǎn)藥物聯(lián)用的相互作用,建立一種協(xié)同/相加/拮抗效應(yīng)的通用計(jì)算方法,有重要的理論和實(shí)際意義,關(guān)鍵是如何計(jì)算預(yù)期相加效應(yīng)。方法根據(jù)藥物序貫原理和藥效集合原理,對(duì)藥物合用量效關(guān)系的解析,發(fā)現(xiàn)了預(yù)期相加的規(guī)律,通用公式如下:
結(jié)果預(yù)期相加效應(yīng)和合用藥物劑量是一個(gè)閉區(qū)間的數(shù)集函數(shù),在二維坐標(biāo)系中呈現(xiàn)為一條量效曲帶,藥物作用方式?jīng)Q定了曲帶的特征。根據(jù)實(shí)際量效曲線與相加效應(yīng)曲帶的特征(一帶一線),計(jì)算劑量合用指數(shù)(CId),判斷協(xié)同(CId1>1,CId2>1)、相加(CId1≤1,CId2≥1或CId2≤1,CId1≥1)和拮抗(CId1<1,CId2<1);以及計(jì)算協(xié)同/相加/拮抗各自的劑量范圍?;谠摲椒軌蜻M(jìn)行多藥協(xié)同/相加/拮抗的定量計(jì)算(N≧2)。也能為新復(fù)方藥物研發(fā)、多因素聯(lián)合毒性效應(yīng)、中藥復(fù)方藥效提供定量評(píng)價(jià)。本報(bào)告將演示該方法的數(shù)學(xué)推導(dǎo)和證明過(guò)程,通過(guò)研究實(shí)例說(shuō)明多藥合用時(shí),如何精確計(jì)算協(xié)同、相加和拮抗的劑量范圍。
關(guān)鍵詞:藥物聯(lián)合;相互作用;定量計(jì)算;一帶一線法
T7-9
治療阿爾茨海默病的中藥有效成分的網(wǎng)絡(luò)藥理學(xué)研究
龐曉叢,王 喆,方堅(jiān)松,連雯雯,康 德,趙 贏,劉艾林,杜冠華
(中國(guó)醫(yī)學(xué)科學(xué)院藥物研究所,北京 100050)
摘要:目的為了探索用于治療阿爾茨海默病的中藥方劑的網(wǎng)絡(luò)藥理學(xué)。方法本文收集了阿爾茨海默病相關(guān)的25個(gè)作用靶點(diǎn),以及13種治療阿爾茨海默病中藥方劑,根據(jù)單味藥出現(xiàn)的頻率,從中選取了7種代表性的中草藥進(jìn)行后續(xù)研究。結(jié)果利用已建立的機(jī)器學(xué)習(xí)分類模型對(duì)中草藥的化學(xué)成分進(jìn)行作用靶點(diǎn)預(yù)測(cè),并構(gòu)建了化合物-靶點(diǎn)網(wǎng)絡(luò),靶點(diǎn)-靶點(diǎn)網(wǎng)絡(luò)以及靶點(diǎn)-疾病網(wǎng)絡(luò)來(lái)解釋中藥方劑的多種有效成分的協(xié)同作用機(jī)制。此外,經(jīng)過(guò)血腦屏障透過(guò)性分析及對(duì)預(yù)測(cè)靶點(diǎn)的驗(yàn)證,得到了7個(gè)結(jié)構(gòu)具有代表性的多靶點(diǎn)的先導(dǎo)化合物。結(jié)論本文應(yīng)用網(wǎng)絡(luò)藥理學(xué)研究了抗阿爾茨海默病的傳統(tǒng)中草藥有效成分的網(wǎng)絡(luò)作用機(jī)制,為抗阿爾茨海默病的中藥臨床應(yīng)用以及多靶點(diǎn)藥物設(shè)計(jì)提供了重要信息。
關(guān)鍵詞:阿爾茨海默??;中藥方劑;網(wǎng)絡(luò)藥理學(xué);虛擬篩選;類藥性
T7-10
基于支持向量機(jī)和樸素貝葉斯的甲型流感病毒(H1N1)神經(jīng)氨酸酶抑制劑分類模型構(gòu)建與藥物發(fā)現(xiàn)
連雯雯,劉艾林,杜冠華
(中國(guó)醫(yī)學(xué)科學(xué)院北京協(xié)和醫(yī)學(xué)院藥物研究所,北京100050)
摘要:目的應(yīng)用機(jī)器學(xué)習(xí)方法建立甲型流感病毒神經(jīng)氨酸酶(neuraminidase,NA)抑制劑分類模型,并用于化合物篩選,以提高藥物篩選效率。方法利用支持向量機(jī)和樸素貝葉斯兩種機(jī)器學(xué)習(xí)方法,建立甲型NA抑制劑的分類模型,并對(duì)訓(xùn)練集中活性化合物與非活性化合物的比例、分子描述符進(jìn)行優(yōu)化,選取最優(yōu)模型對(duì)本實(shí)驗(yàn)室化合物庫(kù)中15 600個(gè)化合物的NA抑制活性進(jìn)行預(yù)測(cè),并用NA抑制劑篩選模型對(duì)預(yù)測(cè)結(jié)果進(jìn)行驗(yàn)證。結(jié)果發(fā)現(xiàn)9個(gè)NA抑制劑,其中5個(gè)是奧司他韋衍生物,在C-5有一個(gè)較大的取代基,對(duì)NA(H1N1)和NA(H3N2)具有較強(qiáng)的抑制作用,IC50分別為12.90~185.04 nmol·L-1和18.88~366.10 nmol·L-1;另外4個(gè)NA抑制劑具有新的骨架,對(duì)NA(H1N1)和NA(H3N2)的抑制作用明顯弱于奧司他韋衍生物,IC50分別為39.46~ 63.83 μmol·L-1和44.54~114.06 μmol·L-1。結(jié)論將機(jī)器學(xué)習(xí)方法用于NA抑制劑的篩選,能有效的提高藥物發(fā)現(xiàn)效率。本研究中發(fā)現(xiàn)的9個(gè)NA抑制劑可以作為先導(dǎo)化合物,對(duì)其進(jìn)行結(jié)構(gòu)優(yōu)化,以期獲得活性更強(qiáng)的NA抑制劑。
關(guān)鍵詞:支持向量機(jī);樸素貝葉斯;機(jī)器學(xué)習(xí);藥物篩選;甲型流感病毒;神經(jīng)氨酸酶
T7-11
民族藥黑種草子調(diào)節(jié)血管內(nèi)皮細(xì)胞功能及血管新生作用
王紅蕊1,司小琴1,2,周國(guó)麗1,2,閆 蓉3,李正濤1,楊 淬1,3,杜冠華3
(1.云南民族大學(xué),云南昆明 650500;2.云南中醫(yī)學(xué)院,云南昆明 650500;3.中國(guó)醫(yī)學(xué)科學(xué)院藥物研究所,北京10050)
摘要:目的研究民族藥黑種草子調(diào)節(jié)血管內(nèi)皮細(xì)胞功能和血管新生的作用及其機(jī)制。方法將不同濃度的黑種草子水提物作用于原代培養(yǎng)的大鼠胸主動(dòng)脈內(nèi)皮細(xì)胞后,觀測(cè)其對(duì)大鼠內(nèi)皮細(xì)胞的體外成管和增殖的作用,同時(shí)以Western blotting方法檢測(cè)大鼠內(nèi)皮細(xì)胞中TGF-β1和Smad3表達(dá)水平,以及Akt和內(nèi)皮型一氧化氮合酶(eNOS)蛋白磷酸化水平,并采用檢測(cè)大鼠內(nèi)皮細(xì)胞產(chǎn)生一氧化氮(NO)的產(chǎn)生情況。結(jié)果黑種草子水提物可濃度依賴性的促進(jìn)大鼠內(nèi)皮細(xì)胞的體外成管和增殖,同時(shí)可顯著性上調(diào)大鼠內(nèi)皮細(xì)胞中TGF-β1和Smad3蛋白的表達(dá),并可顯著性促進(jìn)Akt和eNOS的磷酸化水平。另外,黑種草子水提物可顯著促進(jìn)大鼠內(nèi)皮細(xì)胞NO的產(chǎn)生。結(jié)論民族藥黑種草子水提物可能通過(guò)激活內(nèi)皮細(xì)胞內(nèi)Akt-eNOS通路改善血管內(nèi)皮細(xì)胞功能,并可能通過(guò)激活TGF-β1-Smad3通路促進(jìn)體外血管新生,同時(shí)促進(jìn)新生血管的成熟與穩(wěn)定。民族藥黑種草子可能成為缺血性疾病的新型治療性藥物。
關(guān)鍵詞:民族藥;黑種草子;血管新生;內(nèi)皮細(xì)胞
T7-12
藤三七抗疲勞活性部位研究
徐先祥,周 盼,林榮杰
(華僑大學(xué)生物醫(yī)學(xué)學(xué)院,福建泉州 362021)
摘要:目的藤三七〔Anredera cordifolia(Ten.)Sreenis〕為落葵科多年生蔓生植物,在福建省有大量野生分布。藤三七有補(bǔ)益肝腎、壯腰膝、活血及消腫散瘀等功效,近年來(lái)已有用藤三七制成的保健食品開發(fā)上市。為更好的研究藤三七滋補(bǔ)強(qiáng)壯等方面的食療保健作用,本文采用系統(tǒng)溶劑提取藤三七不同極性部位,篩選藤三七抗疲勞的有效部位。方法藤三七干燥珠芽粉碎,經(jīng)水、醇適當(dāng)提取后,依次用乙醚、乙酸乙酯、正丁醇萃取得到不同部位,采用爬桿試驗(yàn)、負(fù)荷游泳試驗(yàn)及斷頭缺血缺氧試驗(yàn),以各提取部位對(duì)小鼠灌胃給藥,觀察各部位對(duì)小鼠爬桿時(shí)間、游泳時(shí)間以及斷頭缺血缺氧窒息時(shí)間的影響。結(jié)果水提醇沉(多糖)部位給藥對(duì)小鼠的負(fù)重游泳時(shí)間、爬桿時(shí)間以及斷頭缺血缺氧呼吸時(shí)間均有明顯的延長(zhǎng)作用(P<0.01);正丁醇部位對(duì)小鼠斷頭缺血缺氧呼吸時(shí)間均有明顯的延長(zhǎng)作用(P<0.05)。結(jié)論藤三七水提醇沉(多糖)部位為藤三七主要抗疲勞活性部位。
關(guān)鍵詞:藤三七;抗疲勞;有效部位
T7-13
藥食同源中藥抗衰老研究進(jìn)展
薛立英1,2,周玉枝1,高 麗1,秦雪梅1,杜冠華1,3
(山西大學(xué)1.中醫(yī)藥現(xiàn)代研究中心,2.化學(xué)化工學(xué)院,山西太原 030006;3.中國(guó)醫(yī)學(xué)科學(xué)院藥物研究所,北京100050)
摘要:“藥食同源”即“醫(yī)食同源,藥食同根”,藥食同源中藥兼具了豐富的營(yíng)養(yǎng)價(jià)值和藥用價(jià)值。近年來(lái),對(duì)藥食同源中藥進(jìn)行抗衰老研究的報(bào)道越來(lái)越多,藥食同源中藥所具有的抗衰老活性也逐漸被人們所認(rèn)知。本文以藥食同源中藥為研究對(duì)象,通過(guò)其抗氧化活性以及已報(bào)道藥食同源中藥抗衰老研究的文獻(xiàn)數(shù)量,篩選出可以用作抗衰老研究的中藥;同時(shí),以自由基學(xué)說(shuō)、端粒酶學(xué)說(shuō)、免疫學(xué)說(shuō)、DNA損傷修復(fù)學(xué)說(shuō)和神經(jīng)內(nèi)分泌學(xué)說(shuō)為基礎(chǔ),對(duì)藥食同源中藥的抗衰老研究進(jìn)行綜述,并對(duì)其今后的研究方向進(jìn)行展望。調(diào)查發(fā)現(xiàn),有52種藥食同源中藥已考察抗衰老活性,其中抗衰老研究較多的有枸杞子、馬齒莧、黃精、葛根、沙棘、山楂、甘草、玉竹、山藥和火麻仁等(n>10,n為文獻(xiàn)數(shù)量),而青果、槐花、香薷、肉豆蔻、砂仁、昆布、小茴香、麥芽、百合、香椽、槐米和魚腥草等雖然具有較強(qiáng)的抗氧化活性,但目前尚未報(bào)道其抗衰老研究;目前對(duì)于藥食同源中藥的抗衰老研究大多依據(jù)某一機(jī)制展開,且多集中于自由基學(xué)說(shuō),其他機(jī)制研究相對(duì)較少。故本文綜述了藥食同源中藥抗衰老研究進(jìn)展,為其抗衰老研究工作的后續(xù)開展提供借鑒。
關(guān)鍵詞:抗衰老;藥食同源;抗氧化
T7-14
沉香藥用記載、臨床應(yīng)用及藥理作用研究進(jìn)展
王燦紅1,郭 鵬1,2,王 帥2,彭德乾1,弓 寶1,魏建和1,2
(1.中國(guó)醫(yī)學(xué)科學(xué)院藥用植物研究所海南分所,海南???70311;2.中國(guó)醫(yī)學(xué)科學(xué)院藥用植物研究所,北京100193)
摘要:據(jù)先前記載,沉香來(lái)源為瑞香科植物沉香Aquilariaa?gallochaRoxb.和白木香Aquilariasinensis(Lour.)Gilg含有樹脂的木材。但自2005年版《中國(guó)藥典》開始,國(guó)產(chǎn)沉香只收載白木香一種來(lái)源,國(guó)產(chǎn)沉香主產(chǎn)于海南、廣東、廣西、福建等地。沉香作為名貴南藥,有“藥中黃金”之稱,已有一千多年藥用歷史,據(jù)記載:其味辛、苦,性微溫;歸脾、胃、腎經(jīng);具有行氣止痛,溫中止嘔,納氣平喘之功效。沉香作為中醫(yī)常用藥,臨床主要用于治療胸腹脹悶疼痛,胃寒呃逆嘔吐,腎虛氣逆喘急等病癥,均有較好的療效?,F(xiàn)代藥理研究報(bào)道,沉香具有鎮(zhèn)靜、鎮(zhèn)痛、抗菌、抗炎、抗氧化、抗腫瘤、降血糖等廣泛藥理作用。因此,本文就國(guó)內(nèi)、外有關(guān)沉香藥用記載、臨床應(yīng)用及藥理作用的研究文獻(xiàn)進(jìn)行較為系統(tǒng)、全面的總結(jié)、綜述,這為指導(dǎo)沉香更廣泛的臨床應(yīng)用及進(jìn)一步的研究開發(fā)提供理論依據(jù),同時(shí)對(duì)防治人類疾病、養(yǎng)生香產(chǎn)品的開發(fā)乃至整個(gè)沉香產(chǎn)業(yè)的發(fā)展都具有重大的意義。
關(guān)鍵詞:沉香;藥用記載;臨床應(yīng)用;藥理作用
T7-15
中藥對(duì)實(shí)驗(yàn)性肝損傷的藥理研究進(jìn)展
張紅陽(yáng)1,李雪溦1,姚雪蓮2,朱繼孝1
(江西中醫(yī)藥大學(xué)1.中藥資源與民族藥研究中心,2.藥學(xué)院,江西南昌 330004)
摘要:肝損傷是危害人類健康的常見疾病之一。目前肝損傷分子機(jī)制以及中藥抗肝損傷作用的研究已取得了重大的進(jìn)展。本文從化學(xué)性肝損傷、免疫性肝損傷、酒精性肝損傷及藥物性肝損傷等方面對(duì)肝損傷的分子機(jī)制及其中藥藥理研究進(jìn)展進(jìn)行綜述,并建議進(jìn)一步開展中藥對(duì)肝損傷的整體協(xié)同作用、中藥有效成分及其體內(nèi)代謝產(chǎn)物對(duì)關(guān)鍵靶點(diǎn)的作用等研究,重視基礎(chǔ)與臨床應(yīng)用相結(jié)合,開展高質(zhì)量的臨床研究。
關(guān)鍵詞:肝損傷;分子機(jī)制;中藥藥理
T7-16
應(yīng)用SILAC方法發(fā)掘2個(gè)萜類物質(zhì)誘導(dǎo)A549細(xì)胞凋亡的新機(jī)制
孫雄華,徐素雅,宋雪薇,蔣小崗
(蘇州大學(xué)藥學(xué)院,江蘇蘇州 215123)
摘要:目的探討藍(lán)萼甲素、冬凌草甲素誘導(dǎo)人肺腺癌A549細(xì)胞凋亡的新機(jī)制。方法藍(lán)萼甲素、冬凌草處理A549細(xì)胞,流式細(xì)胞儀檢測(cè)細(xì)胞凋亡率,并采用蛋白免疫印跡法檢測(cè)cleaved PARP表達(dá);應(yīng)用穩(wěn)定同位素標(biāo)記氨基酸細(xì)胞培養(yǎng)(SILAC)定量蛋白質(zhì)組學(xué)方法分析藍(lán)萼甲素、冬凌草甲素誘導(dǎo)A549細(xì)胞凋亡后蛋白質(zhì)差異表達(dá)譜,并驗(yàn)證差異蛋白表達(dá)情況;藍(lán)萼甲素聯(lián)合應(yīng)用自噬抑制劑、冬凌草甲素結(jié)合ADRM1過(guò)表達(dá)作用于A549細(xì)胞后細(xì)胞凋亡情況。結(jié)果藍(lán)萼甲素、冬凌草甲素作用于A549細(xì)胞后,結(jié)果顯示給藥組細(xì)胞凋亡率、cleaved PARP蛋白表達(dá)明顯上升;藍(lán)萼甲素、冬凌草甲素誘導(dǎo)A549細(xì)胞凋亡后均約有150個(gè)蛋白表達(dá)發(fā)生顯著變化,所選擇驗(yàn)證的mTOR與ADRM1的蛋白免疫印跡結(jié)果與組學(xué)分析結(jié)果是一致的;聯(lián)合應(yīng)用藍(lán)萼甲素和自噬抑制劑、冬凌草甲素結(jié)合ADRM1過(guò)表達(dá)作用A549細(xì)胞后,細(xì)胞存活率進(jìn)一步下降,cleaved PARP表達(dá)水平進(jìn)一步增加。結(jié)論基于組學(xué)分析手段可深入發(fā)掘2個(gè)萜類物質(zhì)誘導(dǎo)A549細(xì)胞凋亡的機(jī)制,為肺腺癌化療提供潛在靶標(biāo)。
關(guān)鍵詞:藍(lán)萼甲素;冬凌草甲素;A549細(xì)胞;細(xì)胞凋亡;mTOR;ADRM1;SILAC
T7-18
Network pharmacology-based analysis of Chinese herbal NaoDeSheng formula for application to Alzheimer disease
KANG De,PANG Xiao-cong,ZHAO Ying,XU Lyu-jie,LIAN Wen-wen,LIU Ai-lin,DU Guan-hua
(Institute of Materia Medica,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100050,China)
Abstract:OBJECTIVETo predict the potential targets and uncover the mechanisms of NaoDeSheng formula for the treatment of Alzheimer disease.METHODSFirstly,we collected the constituents in NaoDeSheng formula and key targets toward Alzheimer disease.Then,druglikeness,oral bioavailability and blood-brain barrier per?meability were evaluated to find drug-like and lead-like constituents for central nervous system diseases treat?ment.Finallly, wewereattemptedtopredictthe targets of constituents and find potential multi-target compounds from NaoDeSheng formula by combining the advantages of machine learning,molecular docking and pharmacophore mapping together.RESULTSConstituenttarget network,constituent-target-target network and targetbiological pathway network were built to explain the network pharmacology of the constituents in NaoDeSheng formula.CONCLUSIONTo the best of our knowledge,we were the first to study the mechanism of NaoDeSheng formula for potential efficacy for Alzheimer disease treatment by means of the virtual screening and network pharmacology methods.
Key words:Alzheimer disease;network pharmacology;docking;pharmacophore;machine learning
T7-19
Intervention of Bushen Yizhi formula on cognitive disorder rat and the related mechanism of the protec?tive function on neural network
HOU Xue-qin
(Institute of Pharmacology,Taishan Medical College,Taian,China)
Abstract:OBJECTIVEBushen Yizhi formula,constructed by Prof LIAO Shi-long′research group(Guangzhou University of chinese medicine),is the combination of clinical experience and modern pharmacological research,and mainly focuses on the etiology and pathogenesis of AD for treating both cause and symptoms.In this research,the pharmacodynamic study protocol of Bushen Yizhi for?mula was designed according to the characteristics and indications function of herbs in the formula,and was con?formed to preclinical pharmacological research of tradi?tional Chinese medicine for AD,The Technical Require?ments of Pharmacology and Toxicology Research in New Drug DevelopmentEnacted by State Food and Drugadministrationalsowasguidingprinciple.METHODSA preliminary randomized double-blind clini?cal trail with 141 cases of AD showed that the efficiency of Bushen Yizhi formula was 61.9%and the increased mean of MMSE was 3.17,but the specific mechanism remains unclear.This study was aimed to reveal the pre?ventive and therapeutic effect of Bushen Yizhi formula on AD rats and its related mechanism.In this research,fore?brain-injected IBO-induced AD rats(cholinergic neuron lesion),senescence accelerated mouse,scopolamineinduced learning and memory deficiency rats(mild cogni?tive impairment)were all established.The learning and memory ability was tested with Morris water maze.Then formation of age pigment,extent of neuronal loss,acti?vation of astrocytes,content of NTFs and degree of oxi?dized stress damage were determined by morphology,mmunohistochemicalandmolecularbiologymethods.RESULTSAs the application of Bushen Yizhi formula,the learning and memory ability in all three groups were significantly improved,the formation of age pigment and the content of ACH in cortex and hippocampus were reduced,the activation of astrocytes and release of inflam?matory factor(TNF-α and IL-1β)were inhibited,and the antioxidases(CAT,SOD,GSH-PX)were up-regulated and MDA was down-regulated.CONCLUSIONBushen Yizhi formula can prevent and treat AD rats,which might be achieved by anti-inflammatory,antioxidant and pro?tecting cholinergic neuron.
Key words:Bushen Yizhi formula;aging;cognitive impair?ment;inflammation;oxidative stress;neuronal apoptosis
T7-20
A novel hyper-cube shrink algorithm to predict meta?bolic fluxes based on enzyme activity only
XIE Zheng-wei1,4,ZHANG Tian-yu2,OUYANG Qi3,4
(1.Department of Pharmacology,School of Basic Medical Sciences,Peking University,Beijing100191,China;2.School of Life Science,Peking University,Beijing 100191,China;3.Condensed Matter Physics,School of Physics,Peking University,Beijing 100871,China;4.Center for Quantitative Biology and Peking-Tsinghua Center for Life Sciences,Peking University,Beijing 100871,China)
Abstract:OBJECTIVEOne of the long-expected goals of genome-scale metabolic modeling is to evaluate the influence of the perturbed enzymes to the yield of an expected end product.METHDOSMetabolic control analysis(MCA)performs such role to calculate the sen?sitivity of flux change upon that of enzymes under the framework of ordinary differential equation(ODE)models,which are restricted in small-scale networks and require explicit kinetic parameters.The constraint-based models,like flux balance analysis(FBA),lack of the room of per?forming MCA because they are parameters-free.In this study,we developed a hyper-cube shrink algorithm(HCSA)to incorporate the enzymatic properties to the FBA model by introducing a pair of parameters for each reaction. Our algorithm was able to handle not only prediction of knockout strains but also strains with an adjustment of expression level of certain enzymes.RESULTSWe first showed the concept by applying HCSA to a simplest three-nodes network.Then we show the HCSA possess?es Michaelis-Menten like behaviors characterized by steady state of ODE.We obtained good prediction of a synthetic network inSaccharomyces cerevisiaeproducing voilacein and analogues.Finally we showed its capability of predicting the flux distribution in genome-scale networks by applying it to sporulation in yeast.CONCLUSIONWe have developed an algorithm the impact on fluxes when certain enzymes were inhibited or activated.It provides us a powerful tool to evaluate the consequences of enzyme inhibitor or activator.
Key words:metabolic network;linear programming;flux balance analysis
T7-21
Quantitative identification of compounds-dependent on-modules and differential allosteric modules from homologous ischemic networks
LI Bing1,2,LIU Jun1,ZHANG Ying-ying1,WANG Peng-qian1,KANG Rui-xia1,WANG Zhong1,WANG Yong-yan1
(1.Institute of Basic Research in Clinical Medicine,2.Insti?tute of Information on Traditional Chinese Medicine,China Academy of Chinese Medical Sciences,Beijing 100700,China)
Abstract:Module-based methods have made much prog?ress in deconstructing biological networks.However,it is a great challenge to quantitatively compare the topologi?cal structural variations of modules(allosteric modules,AMs)under different situations.A total of 23,42 and 15 co-expression modules were identified in baicalin(BA),jasminoidin(JA)and ursodeoxycholic acid(UA)in a global anti-ischemic mice network,respectively.Then,we integrated the methods of module-based consensus ratio(MCR)and modified Z summary module statistic to validate 12 BA,22 JA and 8 UA on-modules based on comparing with vehicle.The MCRs for pairwise compari?sons were 1.55%(BAvsJA),1.45%(BAvsUA),and 1.27%(JAvsUA),respectively.Five conserved alloste?ric modules(CAMs)and 17 unique allosteric modules(UAMs)were identified among these groups.In conclu?sion,module-centric analysis may provide us a unique approach to understand multiple pharmacological mecha?nisms associated with differential phenotypes in the era of modular pharmacology.
Key words:cerebral ischemia;gene expression net?work;network pharmacology;modular pharmacology
T7-22
Isorhapontigenin(ISO)induces autophagy and cell growth inhibition by upregulation of SESN2/Sestrin2 in the Jun N-terminal kinase/AP-1 dependent manner?in human bladder cancer cells
LIANG Yu-guang1,2,ZHU Jun-lan2,HUANG Hai-shan2,3,XIANG Dai-min2, ZHANG Dong-yun2,LI Jing-xia2,WANGYu-lei2,JINHong-lei2, JIANGGuo-song2,HUANG Chuan-shu2,LIU Ze-yuan1
(1.Department of Clinical Pharmacology,Affiliated Hos?pital,Academy of Military Medical Sciences,Beijing 100071,China;2.Nelson Institute of Environmental Medicine,New York University School of Medicine,NY 10987,USA;3.Zhejiang Provincial Key Laboratory for Technology&Application of Model Organisms,School of Life Sciences,Wenzhou Medical University,Wenzhou 325035,China)
Abstract:OBJECTIVETo investigate the machenism that isorhapontigenin(ISO)induced autophagy and cell growth inhibition in human bladder cancer cells on the basis of the existing research results,for providing a new mechanistic insight into understanding the anti-cancer prop?erties of ISO.METHODSWestern blotting analysis was used to detect the expression of autophagypasswayprot?eins.PolyJet transfection technology was used to estab?lish transfected cell lines,and indirect immunofluores?cence staining was applied to observe the punctuate dots of GFP-LC3.Anchorage-independent growth assay?was used to detect cell colony formation.RT-PCR was used to detect the mRNA levelof SESN2 after ISO treat?ment.The chromatin immunoprecipitation(CHIP)was used to detect the binding of transcription factor c-Jun and specificity SESN2 promoter sequence.RESULTSOur studies revealed that ISO-mediated autophagy induction occurred in a Sestrin2(SESN2)-dependent and Beclin 1(BECN1)-independent manner.Furthermore,we identi?fied that ISO treatment induced SESN2 expression via a c-Jun N-terminal kinase(JNK)/c-Jun-dependent mecha?nism,in which ISO triggered JNK1-dependent c-Jun acti?vation and facilitated the binding of c-Jun to consensus AP-1 binding site in the SESN2 promoter region,thereby led to a significant transcriptional induction of SESN2. Importantly,we found that SESN2 expression was dra?matically down-regulated or even lost in human bladder cancer tissues as compared to their paired adjacent normal tissues,while ISO treatment was capable of elevating SESN2 expression effectively and inhibiting bladder cancer formation in BBN-induced mouse bladder tumorsin vivo.CONCLUSIONISO treatment is able to induce autophagy and inhibit bladder cancer growth through JNK1/c-Jun dependent transcriptional induction of SESN2,which pro?vides a novel mechanistic insight into understanding the inhibitory effect of ISO on bladder cancers and suggests that ISO might act as a promising preventive and/or ther?apeutic drug against human bladder cancer.
Key words:isorhapontigenin;bladder cancer;autophagy;Sestrin2;JNK
基金項(xiàng)目:國(guó)家科技部支撐計(jì)劃蒙藥產(chǎn)業(yè)化共性關(guān)鍵技術(shù)研究項(xiàng)目(2012BI28B01) 西藏自治區(qū)科技廳重點(diǎn)項(xiàng)目(2015ZR-14-13) 國(guó)家自然科學(xué)青年基金面上項(xiàng)目(81302979,81273929) 國(guó)家科技重大專項(xiàng)“重大新藥創(chuàng)制”(2013ZX09103001-008,2012ZX09103101-078);國(guó)家自然科學(xué)基金(81573645,81473383) 國(guó)家自然科學(xué)基金資助項(xiàng)目(81100463);“十二五”國(guó)家科技支撐計(jì)劃(2012BAI31B08) 重大新藥創(chuàng)制科技重大專項(xiàng)(2014ZX09507003-002,2013ZX09508104001002);國(guó)際合作項(xiàng)目(2011DFR31240);國(guó)家863計(jì)劃(2014AA021101) 國(guó)家重大新藥創(chuàng)制項(xiàng)目(2012ZX09301002-2013HXW-11,2013ZX09508104001002,2014ZX09507003-002);國(guó)際合作項(xiàng)目(2011DFR31240);北京市自然基金(7152103) 云南省應(yīng)用基礎(chǔ)研究重點(diǎn)項(xiàng)目(2014FA036);中國(guó)博士后科學(xué)基金面上資助項(xiàng)目(2015M570975) 福建省大學(xué)生創(chuàng)新訓(xùn)練計(jì)劃項(xiàng)目(201510385045);華僑大學(xué)研究生創(chuàng)新能力項(xiàng)目(1400416009) 山西省科技基礎(chǔ)條件平臺(tái)建設(shè)項(xiàng)目(2014091022);山西省科技攻關(guān)項(xiàng)目(20140313008-14)山西省應(yīng)用基礎(chǔ)研究項(xiàng)目(201601D021164);山西省高??萍紕?chuàng)新項(xiàng)目(2016120) “江西民族藥現(xiàn)代科技與產(chǎn)業(yè)發(fā)展協(xié)同創(chuàng)新中心”開放基金項(xiàng)目(JXXT201402021)
通訊作者:范 蕾,E-mail:13171090088@163.com,Tel:13171090088 孫芳云,Tel:18691096609,E-mail:xzmysfy@ 163.com 李春?jiǎn)?,E-mail:lhc@zhunter.com,Tel:(0571)83782172 方蓮花,E-mail:fanglh@imm.ac.cn,Tel:(010)63165313;杜冠華,E-mail:dugh@imm.ac.cn,Tel:(010)63165184 朱 焰,E-mail:zhuyan@sippr.org,Tel:(021)64438416 袁守軍,E-mail:ysj_ysj@139.com 劉艾林,E-mail:liuailin@imm.ac.cn,Tel:(010)83150885;杜冠華,E-mail:dugh@imm.ac.cn,Tel(010)63165184 劉艾林,E-mail:liuailin@imm.ac.cn,Tel:(010)83150885;杜冠華,E-mail:dugh@imm.ac.cn,Tel:(010)63165184 杜冠華,E-mail:dugh@imm.ac.cn,Tel:(010)63165184 徐先祥,E-mail:xuxianxiang@163.com,Tel:(0595)22692300 周玉枝,E-mail:zhouyuzhi@sxu.edu.cn,Tel:(0351)7019178;秦雪梅,E-mail:qinxm@sxu.edu.cn,Tel:(0351)7018379 魏建和,Tel:(010)57833358,E-mail:wjianh@ 263.net 朱繼孝,E-mail:zhujx81@sina.com 蔣小崗,E-mail:jiangxiaogang@suda.edu.cn,Tel:15895568169
Foundation item:The project supported by Science and Technology Development Fund,Macao S.A.R(FDCT)(074/2012/A3);and the Research Fund of University ofMacau(CPG2014-00012-ICMS,MYRG2015-00091-ICMSQRCM and MYRG2015-00101-ICMS-QRCM) LU Jin-jian,E-mail:jinjianlu@ umac.mo,jinjian.lu@163.com The project supported by the Research Special Fund for the National Great Science and Tech?nology Projects(2012ZX09301002,2012ZX09508104,2013ZX09402203);the International Collaboration Project(2011DFR31240);and Peking Union Medical College Graduate Student Innovation Fund(2013-1007-18) s:LIU Ai-lin,Tel&Fax:(010)83150885,E-mail:liuailin@imm.ac.cn;DU Guan-hua,Tel&Fax:(010)83150885,E-mail:dugh@imm.ac.cn The project supported by National Natural Science Foundation of China(81273817);Shandong ProvinceNaturalScienceFoundationofChina(ZR2013HL062);and by Foundation of Overseas Distin?guished Taishan Scholars of Shandong Province HOU Xue-qin,E-mail:houxueqin09@ 126.com The project supported by 985 Startup Funding in PKU s:XIE Zheng-wei,E-mail:xie?zhengwei@bjmu.edu.cn;OUYANG Qi,E-mail:qi@pku.edu.cn The project supported by National Natural Science Foundation of China(90209015);and the Foun?dation of′Eleventh Five′National Key Technologies R&D Program(2006BAI08B04-06) WANG Zhong,E-mail:zhonw@ sina.com s:LIU Ze-yuan,Tel:13701359937,E-mail:13701359937@163.com;HUANG Chuan-shu,Tel:845-731-3519,E-mail:chuanshu.huang@nyumc.org
T7-17
Towards a better understanding of the therapeutic potential ofRhizoma Alismatis:A phytochemical and pharmacological review
ZHANG Le-le,WANG Yi-tao,LU Jin-jian
(State Key Laboratory of Quality Research in Chinese Medicine,Institute of Chinese Medical Sciences,Univer?sity of Macau,Macao,China)
Abstract:Rhizoma Alismatis(RA),the dried rhizome ofAlisma orientalis(Sam.)Juzep,isa widely used traditional herbal medicine popularly known as″Ze Xie″in Chinese. RA is an important crude herb component of several famous Chinese preparations including Zexie decoction,Liu Wei Di Huang pills,Wu Ling power and so on.It has been used to treat various ailments such as dysuria,edema,nephropathy,hypertension,hyperlipidemia and diabetes,etc.A wide range of chemical compounds mainly triter?penes,diterpenes and sesquiterpenes have been isolated from RA,among which the protostane-type triterpenes termed alisols attract the most attention owing to their unique chemical structure and various biological activity. The extract and active compounds of RAhave been dem?onstrated to possess a wide spectrum of pharmacological effects which support its clinical use,e.g.diuretic,hypo?glycemic,hypolipidemic,hepatoprotective,preventing bone loss,anti-inflammatory andantivirus activities.In our previous studies,we have investigatedthe anti-prolifera?tive activities of terpenoids isolated from RA and their structure-activity relationships.Alisol B 23-acetate was demonstrated to induce G1 phase cell cycle arrest and apoptosis,and inhibit migration and invasion of ovarian cancer cells.The present paper reviews the up-to-date in?formation concerning the ethnopharmacology,phyto?chemistry,pharmacology and toxicology of RA.This information will be helpful for a better understanding of therapeutic potential of RA as well as the further explorations.
Key words:Rhizoma Alismatis;ethnopharmacology;phytochemistry;pharmacology