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Immunology - 版本历史
2026-04-09T18:36:37Z
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2026-02-03T14:59:56Z
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<strong>Immunology</strong>（免疫学）是生物医学的一个核心分支，致力于研究生物体对抗原性异物（Antigen）的识别、应答及清除机制。其核心教条是区分<strong>“自我” (Self)</strong> 与 <strong>“非我” (Non-self)</strong>。该学科起源于 18 世纪 Edward Jenner 的牛痘接种，现已发展为涵盖<strong>固有免疫 (Innate Immunity)</strong> 和<strong>适应性免疫 (Adaptive Immunity)</strong> 的庞大体系。现代免疫学不仅是<strong>[[Vaccinology]] (疫苗学)</strong> 的理论基础，更是癌症治疗（如 <strong>[[CAR-T]]</strong>、免疫检查点抑制剂）和自身免疫病治疗的驱动力。<br />
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<div style="font-size: 1.2em; font-weight: bold; letter-spacing: 1.2px;">Immunology</div><br />
<div style="font-size: 0.7em; opacity: 0.85; margin-top: 4px; white-space: nowrap;">Study of Immune System (点击展开)</div><br />
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<div style="font-size: 0.8em; color: #64748b; margin-top: 12px; font-weight: 600;">生命防御的科学</div><br />
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<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">Edward Jenner</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">核心机制</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">Self vs. Non-self</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">关键细胞</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">T细胞, B细胞, NK</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">关键分子</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #16a34a;">抗体, 细胞因子, MHC</td><br />
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<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">[[Vaccinology]]</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">肿瘤治疗</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #e11d48;">[[Immunotherapy]]</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">自身免疫</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">风湿, SLE等</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569;">研究热点</th><br />
<td style="padding: 6px 12px; color: #1e40af;">[[CAR-T]], [[mRNA Vaccine]]</td><br />
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免疫系统由两套协同工作的机制组成。<br />
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<th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 20%;">特性</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af; width: 40%;">[[Innate Immunity]] (固有免疫)</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #475569; width: 40%;">[[Adaptive Immunity]] (适应性免疫)</th><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">反应速度</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>即时</strong> (0-96小时)。</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>延迟</strong> (>96小时，初次接触时)。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">特异性</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">非特异性。识别广谱的模式分子 (<strong>[[PAMPs]]</strong>)。</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">高度特异性。识别特定的抗原表位 (Epitope)。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">记忆性</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">无 (传统观点) / 训练免疫 (新观点)。</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>有免疫记忆</strong>。再次接触反应更强。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">主力军</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">巨噬细胞, 中性粒细胞, [[NK Cells]], 补体系统。</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>T细胞</strong> (细胞免疫), <strong>B细胞</strong> (体液免疫/抗体)。</td><br />
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免疫系统如何区分“被感染的细胞”和“健康细胞”？关键在于 <strong>[[MHC]] (主要组织相容性复合体)</strong>，在人类中称为 HLA。这是细胞治疗（如 <strong>[[Tumor Vaccines]]</strong>）的理论基石。<br />
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<li style="margin-bottom: 8px;"><strong>MHC Class I：</strong> 存在于所有有核细胞表面。它呈递细胞<strong>内部</strong>产生的蛋白片段（如病毒蛋白、肿瘤突变蛋白）给 <strong>CD8+ T细胞</strong>（杀伤性T细胞）。</li><br />
<li style="margin-bottom: 8px;"><strong>MHC Class II：</strong> 主要存在于抗原呈递细胞 (APC) 表面。它呈递<strong>外部</strong>吞噬的蛋白片段给 <strong>CD4+ T细胞</strong>（辅助性T细胞）。</li><br />
<li style="margin-bottom: 0;"><strong>意义：</strong> T细胞受体 (TCR) 只能识别结合在 MHC 分子上的抗原肽。这就是所谓的“MHC 限制性”。</li><br />
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<h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">临床革命：免疫治疗</h2><br />
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过去几十年，免疫学从基础研究转化为临床应用，开启了继手术、放疗、化疗之后的癌症治疗“第四次革命”。<br />
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<li style="margin-bottom: 12px;"><strong>免疫检查点抑制剂 (ICIs)：</strong> 解除癌细胞对 T 细胞的抑制。如抗 <strong>[[PD-1]]/PD-L1</strong> 抗体。</li><br />
<li style="margin-bottom: 12px;"><strong>过继性细胞疗法 (ACT)：</strong> 从患者体内提取免疫细胞，在体外进行基因工程改造后回输。如 <strong>[[CAR-T]] (嵌合抗原受体 T 细胞)</strong>，用于治疗血液瘤。</li><br />
<li style="margin-bottom: 12px;"><strong>肿瘤疫苗：</strong> 利用 <strong>[[Neoantigen]] (新抗原)</strong> 训练免疫系统主动攻击肿瘤。包括 [[mRNA Vaccine]] 和多肽疫苗。</li><br />
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<span style="color: #0f172a; font-weight: bold; font-size: 1.05em; display: inline-block; margin-bottom: 15px;">学术参考文献 [Academic Review]</span><br />
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[1] <strong>Murphy K, Weaver C. (2016).</strong> <em>Janeway's Immunobiology (9th Ed).</em> <strong>[[Garland Science]]</strong>. <br><br />
<span style="color: #475569;">[点评]：免疫学领域的权威教科书，以其详尽的机制图解和对先天免疫的深入探讨而闻名。</span><br />
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[2] <strong>Couzin-Frankel J. (2013).</strong> <em>Cancer Immunotherapy.</em> <strong>[[Science]]</strong>. <br><br />
<span style="color: #475569;">[点评]：Science 杂志将癌症免疫治疗评为 2013 年度突破，详细记录了从基础免疫学原理到临床治愈的飞跃。</span><br />
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[3] <strong>Punt J, et al. (2018).</strong> <em>Kuby Immunology (8th Ed).</em> <strong>[[Macmillan Learning]]</strong>. <br><br />
<span style="color: #475569;">[点评]：另一本经典教材，特别适合从分子层面理解抗原抗体反应及实验免疫学技术。</span><br />
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免疫学体系 · 知识图谱<br />
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<td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">上级学科</td><br />
<td style="padding: 10px 15px; color: #334155;">[[Biology]] • [[Medicine]] • [[Microbiology]]</td><br />
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<td style="padding: 10px 15px; color: #334155;">[[Innate Immunity]] • [[Adaptive Immunity]] • [[Clinical Immunology]]</td><br />
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<td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">前沿应用</td><br />
<td style="padding: 10px 15px; color: #334155;">[[Vaccinology]] • [[Immunotherapy]] (CAR-T, PD-1) • [[Autoimmunity]]</td><br />
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