理大与中大合作研制新药ABarginase治疗肥胖相关疾病
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2023-05-24 13:47:05
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<section style="margin-bottom: 0px; line-height: 1.75em; margin-left: 8px; margin-right: 8px;" data-mpa-powered-by="yiban.io"><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">最近这两天,一则新闻在香港的各个媒体上刷屏了——</span></section>
<section style="margin-bottom: 0px; line-height: 1.75em; margin-left: 8px; margin-right: 8px;"><span style="color: #b75941;"><strong><span style="color: #b75941; font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">理大与香港中文大学(中大)在合作研发新药物上取得重大突破,首创了一种可以治疗多种与肥胖症和胰岛素抵抗相关的代谢性疾病(如糖尿病和脂肪肝)的药物!</span></strong></span></section>
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<section style="font-size: 14px; font-family: PingFangSC-Regular, 'PingFang SC'; color: #243a6d; line-height: 1.75em;"><span style="font-size: 16px;">肥胖是全球普遍的健康问题。</span><span style="font-size: 16px;">根据世界卫生组织的统计,仅2016年,在全球成年人中,就有逾19亿人属于“超重”、6.5亿人属于“肥胖”,分别占成年人人口的39% 和13%。</span><span style="font-size: 16px;">而在香港,约两名成年人中,就有一人的体重指标被界定为“超重”或“肥胖”。</span></section>
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<section style="line-height: 1.75em; margin: 32px 8px 0px;"><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">由<strong><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; color: #667595;">理大应用生物及化学科技学系教授、卢家骢慈善基金药物科学教授梁润松教授</span></strong>和<span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; color: #667595;"><strong>中大医学院生物医学学院副教授沈秀媛教授</strong></span>牵头研发的新药</span><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; color: #b75941;"><strong>ABarginase</strong></span><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">,是全球首款通过全新药理机制“消耗精氨酸”来治疗多种肥胖相关疾病的单一药物。ABarginase开辟了一条药效安全且持久的新路径——在此之前,为</span><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">治疗上述这些相互关联的疾病,患者往往需要服用不同的药物,这会增加患者出现“多药联用”问题的风险。</span></section>
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<section style="line-height: 1.75em; margin-left: 8px; margin-right: 8px; margin-bottom: 0px;"><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">ABarginase具有广阔的临床应用前景,它的<span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; color: #b75941;">适用症包括糖尿病前期、II 型糖尿病、非酒精性脂肪肝等</span><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; color: #b75941;">多种代谢疾病</span></span><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">,且</span><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; color: #b75941;">制药成本低、效率高</span><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">。因此,更多患者可以负担得起该药物并从中受惠。</span></section>
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<p style="text-align: center; margin-left: 8px; margin-right: 8px; margin-bottom: 0px; line-height: 1.5em;"><span style="font-size: 14px; color: #888888;">研究团队主要成员:理大梁润松教授(左)、中大沈秀媛教授(右)。</span></p>
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<p style="text-align: center; margin-left: 8px; margin-right: 8px; margin-bottom: 0px; line-height: 1.5em;"><span style="font-size: 14px; color: #888888;">本次研究结合了理大在蛋白工程与药物开发方面的优势,以及中大在肥胖及糖尿病研究方面的领先实力。</span></p>
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<section style="font-size: 14px; font-family: PingFangSC-Regular, 'PingFang SC'; color: #243a6d; line-height: 1.75em;"><span style="font-size: 16px;">肥胖不仅会影响人们的体形,更会诱发糖尿病、非酒精性脂肪肝、心脏病、高血压、癌症等多种慢性病。</span></section>
<section style="font-size: 14px; font-family: PingFangSC-Regular, 'PingFang SC'; color: #243a6d; line-height: 1.75em;"><br /><span style="font-size: 16px;">理大与中大的研究团队发现,当血液中一种半必需氨基酸“精氨酸”处于低水平时</span><span style="font-size: 14px;">(即“精氨酸饥饿”状态)</span><span style="font-size: 16px;">,细胞会抑制脂肪合成、促进脂肪分解并增强对胰岛素的敏感度。不过,一般情况下,人体内可分解精氨酸的“精氨酸酶”只有不足30分钟的循环半衰期,时间很短。</span></section>
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<section style="line-height: 1.75em; margin: 0px 8px;"><span style="color: #667595;"><strong><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">梁润松教授</span></strong></span><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">介绍:“通过采用先进的融合蛋白方法,我们的研究团队研制出一种长效的重组人类精氨酸酶ABarginase,它含有一个白蛋白结合域,能够与血液中稳定且充沛的白蛋白结合,从而可将循环半衰期延长约200倍。ABarginase具有较强的酶活性,每星期只需注射一个剂量,就足以使血液循环中的精氨酸保持在低水平,进而达到‘精氨酸饥饿’的状态。”</span></section>
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<section style="margin-right: 8px; margin-bottom: 0px; margin-left: 8px; text-align: center; line-height: 1.5em;"><span style="font-size: 14px; color: #888888;">利用三D打印分子模型展示ABarginase、白蛋白与FcRn receptor在细胞表面的相互作用。</span></section>
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<section style="font-size: 14px; font-family: PingFangSC-Regular, 'PingFang SC'; color: #243a6d; line-height: 1.75em;"><span style="font-size: 16px;">研究人员为两组经饮食诱导的肥胖小鼠每周分别注射一次ABarginase和生理盐水。八周后,相比于注射生理盐水的对照组,ABarginase组的小鼠在体重、脂肪量、脂肪肝和糖尿病症状</span><span style="font-size: 14px;">(如高血糖、胰岛素抵抗、葡萄糖耐受不良)</span><span style="font-size: 16px;">等方面均恢复至正常水平。</span></section>
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<p style="line-height: 1.75em; margin: 0px 8px;"><strong><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; color: #667595;">沈秀媛教授</span></strong><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">说:“ABarginase在临床前研究阶段已经展现巨大潜力,有望为治疗多种与肥胖、胰岛素抵抗、糖尿病等相关的代谢性疾病提供安全有效的方案。其中,非酒精性脂肪肝至今没有获美国食物及药物管理局认可的药物,因此ABarginase的研发对于治疗非酒精性脂肪肝尤其意义重大。我们相信,可以治愈这些相关疾病的单一药物已经研发出来了。”</span></p>
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<section style="font-size: 14px; font-family: PingFangSC-Regular, 'PingFang SC'; color: #243a6d; line-height: 1.75em;"><span style="font-size: 16px;">目前,研究团队已在多个国家为该新药申请了专利,并正提升制药工艺至符合生产质量管理规范(GMP)的品质要求,为开展临床试验做好准备。</span></section>
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<section style="line-height: 1.75em; margin: 0px 8px;"><span style="font-size: 16px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">梁教授和沈教授表示:“作为科学家,一直以来,我们都矢志为改善人类褔祉做出贡献。成功研发ABarginse可以说是为我们实现理想迈出的重要一步。”</span></section>
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<p style="margin-left: 8px; margin-right: 8px; margin-bottom: 0px;"><span style="font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px;">在第48届日内瓦国际发明展中,香港共有两项发明获得最高殊荣大奖,ABarginase就是其中之一,获颁“发明者协会国际联合会最佳发明大奖”</span><span style="font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px;">。这既是对该款新药改善患者福祉、提升全球医疗卫生能力的肯定,也是对香港高校之间科研合作水平的国际级认可。</span></p>
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<p style="margin-left: 8px; margin-right: 8px; margin-bottom: 0px;"><span style="font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px;">本研究得到卢家骢慈善基金有限公司、香港特区政府医务卫生局医疗卫生研究基金,以及理大化学生物学及药物研发国家重点实验室支持。</span></p>
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<p style="margin-right: 8px; margin-left: 8px; text-align: center; line-height: 1.5em; margin-bottom: 0px;"><span style="font-size: 14px; color: #888888;">卢家骢慈善基金有限公司董事卢伯韶先生(右四)、罗丽珊女士(右三),研究团队主要成员梁润松教授(左三)、沈秀媛教授(左四),理大应用生物及化学科技学系助理教授(研究)李文渊博士(左一),中大研究及知识转移服务处处长徐仲鍈教授(右二),理大知识转移及创业总监王家达先生(左二),中大研究及知识转移服务处知识转移活动经理文志伟博士(右一)出席发布会。</span></p>
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