Nature重磅!一针抗体,让免疫系统重返青春!只需清除这种干细胞
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="//q2.itc.cn/images01/20240407/b70f8e81b70c4d939183e76817a348c1.jpeg" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">冬去春来,<span style="color: black;">轻轨</span>上、办公室里,咳嗽声此起彼伏。身处此间,喉咙里的一丝痒意、没忍住的一个喷嚏,可能都会让你<span style="color: black;">可疑</span>自己:<strong style="color: blue;">我<span style="color: black;">是否</span>又感冒了?</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">这看似有些过度紧张的<span style="color: black;">可疑</span>其实并不<span style="color: black;">没</span>道理。事实上,在巨大的生活压力以及<span style="color: black;">错乱</span>的作息节律双重摧残之下,<span style="color: black;">咱们</span>的<strong style="color: blue;">免疫系统,可能早已千疮百孔</strong>——有些人可能年方二三十,免疫系统便已衰老孱弱如六七十。</p><img src="//q1.itc.cn/images01/20240407/709a1c662edb4183ba800e2f3f72d80b.png" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">照片</span><span style="color: black;">源自</span>:https://economictimes.indiatimes.com/markets/stocks/news/dhfl-sneezes-and-debt-funds-catch-the-cold/trouble-in-paradise/slideshow/69675222.cms</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">幸运的是,<strong style="color: blue;">美国国立卫生<span style="color: black;">科研</span>院</strong>落基山实验室的<strong style="color: blue;">Kim J. Hasenkrug教授</strong>和<strong style="color: blue;">斯坦福大学</strong>医学院的<strong style="color: blue;">Irving L. Weissman教授</strong>的<span style="color: black;">科研</span>团队为<span style="color: black;">咱们</span><span style="color: black;">供给</span>了一线<span style="color: black;">期盼</span> 。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">她们</span><span style="color: black;">报告</span>了<strong style="color: blue;">一种能<span style="color: black;">帮忙</span>衰老免疫系统“重返青春”的全新抗体,</strong>其<span style="color: black;">能够</span><strong style="color: blue;">消除机<span style="color: black;">身体</span>与衰老和炎症<span style="color: black;">关联</span>的造血干细胞,逆转免疫系统衰老</strong> 。</p><img src="//q6.itc.cn/images01/20240407/ce14b8729e884b3d87f9bdf4ed5fe7e5.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">图注:该<span style="color: black;">科研</span>被<span style="color: black;">发布</span>于<span style="color: black;">全世界</span>顶级期刊nature杂志</p><img src="//q6.itc.cn/images01/20240407/111393456b8d4a40a0fbb55c74888169.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">做为</span>所有免疫细胞和血细胞的起源,<strong style="color: blue;">造血干细胞</strong><span style="color: black;">针对</span>维持机体免疫系统的正常功能至关<span style="color: black;">要紧</span>。过去的<span style="color: black;">科研</span><span style="color: black;">显示</span>,造血干细胞可分化为<strong style="color: blue;">淋巴细胞</strong>以及<strong style="color: blue;">髓系细胞</strong>(起源于骨髓的血细胞,<span style="color: black;">包含</span><span style="color: black;">咱们</span><span style="color: black;">平常</span>的中性粒细胞、血小板、红细胞和白细胞等) ,<span style="color: black;">重点</span>分为两种类型:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">① <strong style="color: blue;">bal-HSCs,平衡型</strong>造血干细胞,可<span style="color: black;">平衡</span>地分化为淋巴细胞和髓系细胞;</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">②<strong style="color: blue;"> my-HSCs,髓系偏向型</strong>造血干细胞,<span style="color: black;">重点</span>产生髓系细胞 。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在<span style="color: black;">咱们</span><strong style="color: blue;"><span style="color: black;">青春</span></strong>的时候,bal-HSCs在造血干细胞中所占的比例是要<strong style="color: blue;">高于</strong>my-HSCs的,这能够促进产生<span style="color: black;">得到</span>性免疫反应所需的淋巴细胞。然而,随着<strong style="color: blue;">衰老</strong>的进行,<strong style="color: blue;">my-HSCs的比例会<span style="color: black;">逐步</span><span style="color: black;">增多</span>超过bal-HSCs</strong> ,<span style="color: black;">引起</span>淋巴细胞的生成减少,系统偏向生成髓系细胞 。</p><img src="//q4.itc.cn/images01/20240407/7bc868da709f4a05b35a63979ad3e101.png" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">图注:造血干细胞的老化特征</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">不难想象,这自然会<span style="color: black;">导致</span><strong style="color: blue;"><span style="color: black;">得到</span>性免疫力下降 </strong>、<strong style="color: blue;">慢性炎症<span style="color: black;">增多</span></strong> <strong style="color: blue;">等多种衰老<span style="color: black;">关联</span>问题</strong>。并且髓系细胞的过度产生还会<span style="color: black;">增多</span><span style="color: black;">包含</span>白血病在内的骨髓病变<span style="color: black;">危害</span> ,这些<span style="color: black;">亦</span>正是免疫系统衰老的<span style="color: black;">重点</span>特征 。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在<span style="color: black;">重视</span>到这些现象之后,<span style="color: black;">科研</span>团队<span style="color: black;">起始</span>思考:<span style="color: black;">咱们</span>能<span style="color: black;">不可</span><span style="color: black;">研发</span>出<strong style="color: blue;">一种专门针对my-HSCs的抗体,<span style="color: black;">经过</span>其表面的某些特定蛋白,部分地消灭掉一部分my-HSCs,</strong><span style="color: black;">这般</span>不就能够让bal-HSCs和my-HSCs两者的比例恢复到“青春状态”了吗?</p><img src="//q0.itc.cn/images01/20240407/c4f15e29c917459283a4e589dd0d5956.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">图注:抗体注射疗法<span style="color: black;">明显</span>减少炎症,促进B淋巴细胞和T淋巴细胞的合成</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">经过</span>一轮系统细致的筛选与测试之后,<span style="color: black;">科研</span>团队<span style="color: black;">火速</span>就找到了几个my-HSCs身上的独特蛋白:<strong style="color: blue;">CD150D、CD62p以及NEO1蛋白。</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">这些蛋白都在<strong style="color: blue;">my-HSCs中高度表达,而在bal-HSCs中低表达</strong>,并且在my-HSCs的子子孙孙:造血祖细胞、成熟分化血细胞等中表达均不<span style="color: black;">明显</span>,<span style="color: black;">因此呢</span><span style="color: black;">能够</span><span style="color: black;">做为</span>消灭my-HSCs用抗体的那个靶点(抗原)。</p><img src="//q1.itc.cn/images01/20240407/db3752543ecf42d7888c7c794771c481.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">图注:图a<span style="color: black;">表示</span>了调控<span style="color: black;">各样</span>造血干细胞表面蛋白基因在衰老和<span style="color: black;">青春</span>造血干细胞、my-和bal-HSCs中的相对比例<span style="color: black;">状况</span>,图b<span style="color: black;">表示</span>了各个表面蛋白在两种造血干细胞中的阳性百分比</p><img src="//q8.itc.cn/images01/20240407/a4f2ace531264619b46d7bba2545836e.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">图注:数据<span style="color: black;">显示</span>,随着年龄增长,my-HSCs的含量会<span style="color: black;">逐步</span><span style="color: black;">增多</span>,含有NEO1和CD62Pp蛋白的细胞<span style="color: black;">亦</span>会<span style="color: black;">逐步</span><span style="color: black;">增多</span></p><img src="//q8.itc.cn/images01/20240407/6b9d538ec90746e0a8f61655fd599c2a.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">No.1</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">一辈子</span>三,三向制导清my-HSCs</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">科研</span>团队将<span style="color: black;">第1</span>炮瞄准了<strong style="color: blue;">6到7个月大的成年小鼠</strong>,为它们注射了<strong style="color: blue;">以CD150蛋白为<span style="color: black;">目的</span>的抗体</strong>,并在<strong style="color: blue;"><span style="color: black;">1星期</span></strong>后检测了小鼠的骨髓<span style="color: black;">状况</span>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">结果<span style="color: black;">表示</span>,<strong style="color: blue;">经过抗体处理后的成年小鼠<span style="color: black;">身体</span>的my-HSCs的绝对数量以及比例均<span style="color: black;">明显</span>下降,且<span style="color: black;">显著</span>少于bal-HSCs,</strong>这<span style="color: black;">没</span>疑证明了这套抗体<span style="color: black;">方法</span>的<strong style="color: blue;">可行性</strong>。</p><img src="//q4.itc.cn/images01/20240407/29f9df74081c461a848d64378b0abe17.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">图注:注射CD150后抗体组(蓝,右图左)与对照组(红,右图右)的my-HSCs比例变化</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">因为</span>不同蛋白(抗原)在my-HSCs表面的分布<span style="color: black;">状况</span>并不相同,<span style="color: black;">因此呢</span><strong style="color: blue;">只针对单个蛋白(抗原)的抗体的my-HSCs清除效率并不高。</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">思虑</span>到了这一点后,<span style="color: black;">科研</span>团队对抗体<span style="color: black;">方法</span>进行了优化,<span style="color: black;">最后</span>得到了三套不同的抗体<span style="color: black;">方法</span>:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">- 结合CD150、CD47和KIT蛋白(一种造血干细胞表面的蛋白,会在病变或衰老机<span style="color: black;">身体</span><span style="color: black;">反常</span>活跃)的抗体</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">- 结合CD62p、CD47和KIT蛋白的抗体</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">- 结合NEO1、CD47和KIT蛋白的抗体</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">它们都能够<span style="color: black;">做为</span>一种抗体调节<span style="color: black;">方法</span>,部分清除成年小鼠<span style="color: black;">身体</span>的my-HSCs。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">No.2</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">增多</span>B细胞和T细胞、改善淋巴细胞衰老</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">抗体们在成年小鼠<span style="color: black;">身体</span>能够大显神威,<span style="color: black;">那样</span>在衰老小鼠<span style="color: black;">身体</span>表现又<span style="color: black;">怎样</span>呢?</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在随后的<span style="color: black;">实验</span>中,<span style="color: black;">科研</span>团队将第二炮正式瞄准了<span style="color: black;">这次</span><span style="color: black;">科研</span>的<span style="color: black;">重点</span><span style="color: black;">目的</span>:<strong style="color: blue;">18到24个月大的老年小鼠。</strong></p><img src="//q4.itc.cn/images01/20240407/0de6540281a54144b593ceff9ea5123f.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">实验结果满足了<span style="color: black;">大众</span>的期望,接受了一次抗体注射的老年小鼠在<strong style="color: blue;"><span style="color: black;">1星期</span>之后就被观察到my-HSCs的<span style="color: black;">明显</span>减少,并且在8周后有了进一步的减少,</strong>彰显出了单次抗体注射清除my-HSCs的强大<span style="color: black;">潜能</span>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">而与之相反的是,bal-HSCs的后代之一:<strong style="color: blue;">淋巴祖细胞(CLPs)的比例在治疗8周和16周之后都<span style="color: black;">显著</span><span style="color: black;">增多</span>了,</strong>且淋巴祖细胞还会<strong style="color: blue;">继续分化</strong><strong style="color: blue;">形成新的T淋巴细胞和B淋巴细胞</strong>,而这两者的缺失正是免疫系统衰老的<span style="color: black;">重要</span>特征之一 ,显然,<strong style="color: blue;">这一针抗体真的能够<span style="color: black;">帮忙</span>免疫系统恢复<span style="color: black;">青春</span>的活力</strong>。</p><img src="//q3.itc.cn/images01/20240407/d46c47a47220484893c947d9c80b7f38.png" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">图注:注射抗体后,衰老小鼠组的my-HSCs比例<span style="color: black;">明显</span>减少,而淋巴祖细胞却<span style="color: black;">明显</span><span style="color: black;">增多</span>了</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">科研</span>团队证实,注射抗体8周(7到11周为新生淋巴细胞的产生高峰期)之后的<strong style="color: blue;">衰老小鼠循环中的T细胞以及B细胞的比例和绝对数量均有了<span style="color: black;">明显</span><span style="color: black;">增多</span>,</strong>而其他淋巴细胞的数量则<span style="color: black;">无</span>受到<span style="color: black;">显著</span>影响,免疫系统已然“青春盎然”。</p><img src="//q6.itc.cn/images01/20240407/0e6ae10300bd41af823ef7dfb8a6616a.png" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">更有趣的是,<span style="color: black;">科研</span>团队还<span style="color: black;">发掘</span>,抗体的注射还对老年小鼠<span style="color: black;">身体</span>淋巴细胞的衰老起到了改善<span style="color: black;">功效</span>。实验数据<span style="color: black;">显示</span>,<strong style="color: blue;">与淋巴细胞衰老<span style="color: black;">关联</span>的免疫表型在接受抗体注射之后<span style="color: black;">亦</span><span style="color: black;">显现</span>了<span style="color: black;">明显</span>下降。</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">反映在机体层面,<strong style="color: blue;">接受抗体注射的老年小鼠对感染的抵抗力以及对疫苗接种的反应能力<span style="color: black;">亦</span>有了<span style="color: black;">明显</span>的改善,</strong>这<span style="color: black;">一样</span><span style="color: black;">亦</span>是免疫系统衰老得到改善的标志之一 。</p><img src="//q4.itc.cn/images01/20240407/6b38ca700c7943eca3166cf1a76f266d.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">图注:衰老小鼠在病毒感染<span style="color: black;">状况</span>下注射疫苗<span style="color: black;">显著</span>恢复了健康</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">No.3</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">减少促炎因子:免疫系统外的抗衰老</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在<span style="color: black;">第1</span>部分中<span style="color: black;">咱们</span><span style="color: black;">说到</span>,my-HSCs的<span style="color: black;">增多</span>会<span style="color: black;">引起</span>髓系细胞的数量<span style="color: black;">增多</span>,后者的过度产生会<span style="color: black;">引起</span>慢性炎症的<span style="color: black;">增多</span> ,<span style="color: black;">最后</span><span style="color: black;">导致</span>免疫系统以外其他细胞及系统的衰老。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">而对注射抗体8周后的老年小鼠<span style="color: black;">血液</span>中的循环蛋白分析<span style="color: black;">显示</span>,<strong style="color: blue;">抗体注射能够<span style="color: black;">明显</span>减少老年小鼠<span style="color: black;">身体</span>的促炎因子</strong>(如IL-1α43、CXC514等),这为改善慢性炎症<span style="color: black;">关联</span>的衰老<span style="color: black;">供给</span>了一条新的途径,期待其后续的进一步发展。</p><img src="//q6.itc.cn/images01/20240407/6a8313165ee5486d87cb68c28d56eb3c.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">图注:注射抗体后(蓝色),衰老小鼠<span style="color: black;">身体</span>衰老淋巴细胞与非衰老淋巴细胞的比例下降了</p><img src="//q8.itc.cn/images01/20240407/cadfc93aac504922ad835f75e7518dbb.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">熟读派派<span style="color: black;">文案</span>的老<span style="color: black;">伴侣</span>们看到<span style="color: black;">这儿</span>可能还不满足:说<span style="color: black;">来讲</span>去又是在小鼠身上做的实验,这玩意儿<strong style="color: blue;">不会又是一个没法在人类身上验证的“屠龙术”吧?</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">你别说,这次还真就不是了。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">事实上,<strong style="color: blue;">人类和小鼠的造血干细胞都会<span style="color: black;">显现</span>类似的与衰老<span style="color: black;">关联</span>的my-HSCs比例<span style="color: black;">增多</span></strong> 。而经<span style="color: black;">科研</span>团队证实,<strong style="color: blue;">在小鼠<span style="color: black;">身体</span>调控CD62p以及NEO1蛋白表达的几组基因在衰老的人类my-HSCs中<span style="color: black;">一样</span>富集。</strong></p><img src="//q7.itc.cn/images01/20240407/88a33e3011de470385e77a76fcf16f09.png" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在衰老的人类造血干细胞中,CD62p和NEO1的调控基因<span style="color: black;">一样</span>富集表达</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">而用<span style="color: black;">一样</span>的抗体对人类造血干细胞进行处理后,<span style="color: black;">科研</span>团队惊喜地<span style="color: black;">发掘</span>,<strong style="color: blue;">这些细胞被<span style="color: black;">显著</span>地分<span style="color: black;">成为了</span>两个部分,my-HSCs很顺利地被筛选了出来,</strong>这就再次证明了CD62p和NEO1蛋白在my-HSCs表面的存在。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">这毫<span style="color: black;">没</span>疑问是一项颇具<span style="color: black;">道理</span>的<span style="color: black;">发掘</span>,对此,<span style="color: black;">科研</span>团队说道:<span style="color: black;"><strong style="color: blue;">“这些实验标志着<span style="color: black;">咱们</span>迈出了<span style="color: black;">第1</span>步,即确定治疗靶点以消耗人类造血干细胞,并利用这一策略使衰老的免疫系统恢复活力”。</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在这篇论文<span style="color: black;">发布</span>的同天,nature杂志还刊登了<strong style="color: blue;">知名干细胞学者、美国加州大学圣地亚哥分校Robert A. J. Signer教授的评论<span style="color: black;">文案</span>,</strong>对<span style="color: black;">这次</span><span style="color: black;">科研</span>的<span style="color: black;">道理</span>进行了总结。</p><img src="//q3.itc.cn/images01/20240407/ad9c9e06c867449c980ad92a6af939d9.jpeg" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">原文链接:https://www.nature.com/articles/d41586-024-00680-x#:~:text=In%20addition%20to%20partially%20rebalancing,that%20circulate%20in%20the%20blood.</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;">“罗斯(本文作者)及其同事<span style="color: black;">此刻</span>证明,特异性地靶向<span style="color: black;">反常</span>的、髓系偏向的造血干细胞,是一种令人兴奋的<span style="color: black;">办法</span>,它<span style="color: black;">能够</span>重振免疫系统并减轻衰老的<span style="color: black;">有些</span>有害影响。”</strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">另外</span>,Signer教授<span style="color: black;">亦</span>指出了这一抗体<span style="color: black;">方法</span>的<span style="color: black;">有些</span>潜在<span style="color: black;">危害</span>。Signer教授提出,抗体注射可能会缩小造血干细胞的总量,从而加剧<strong style="color: blue;">克隆性造血</strong>的<span style="color: black;">显现</span>,<span style="color: black;">亦</span>可能迫使造血干细胞<span style="color: black;">显现</span>代偿性地扩张,这就可能会<span style="color: black;">引起</span><strong style="color: blue;"><span style="color: black;">关联</span>癌症的<span style="color: black;">发展</span></strong>。<span style="color: black;">另外</span>,淋巴祖细胞的过度产生可能<span style="color: black;">亦</span>会<span style="color: black;">增多</span>老年群体<span style="color: black;">病患</span><strong style="color: blue;">淋巴癌</strong>的<span style="color: black;">危害</span>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">到底这抗体疗法能否正式走上临床,<span style="color: black;">帮忙</span><span style="color: black;">咱们</span>对抗那难熬的感冒咳嗽病菌感染,就要等待<span style="color: black;">科研</span>团队的后续<span style="color: black;">报告</span>了。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">TIMEPIE点评</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">读完本文,从小就与感冒斗争、<span style="color: black;">刚才</span>脱离肺炎<span style="color: black;">危险</span>的派派感到万分振奋,仿佛看到了根治自己这千疮百孔的“老身体”的<span style="color: black;">重要</span><span style="color: black;">办法</span>。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">在派派看来,<span style="color: black;">这次</span><span style="color: black;">科研</span>提出的这套抗体<span style="color: black;">方法</span>和派派之前<span style="color: black;">报告</span>的<strong style="color: blue;">CAR T消除衰老细胞的<span style="color: black;">方法</span></strong>有异曲同工之妙,不<span style="color: black;">晓得</span><span style="color: black;">将来</span><span style="color: black;">可否</span>有机会能看到两边的<span style="color: black;">科研</span>人员坐在<span style="color: black;">一块</span>,畅谈用“抗体针”“治疗”衰老的一天呢。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;">—— TIMEPIE ——</strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">咱们</span>不是<span style="color: black;">必要</span>随着时间流逝而变老”,<span style="color: black;">这儿</span>是专注“长寿科技”科普的TIMEPIE,为您带来最前沿、最热门的抗衰<span style="color: black;">新闻</span>。全国首个“长寿极客联盟”招募中,<span style="color: black;">定时</span>线下沙龙、抗衰主题实践(冥想、轻断食)、环球抗衰之旅(健康长寿中心、衰老<span style="color: black;">科研</span>所)等你解锁!感兴趣的读者欢迎小窗交流</p>
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