Minocycline

— Integration of clinical and patient-reported outcomes expected to further differentiate EluPro’s utility in cardiac implantable electronic device (CIED) procedures — SILVER SPRING, Md., April 21, 2025 (GLOBE NEWSWIRE) -- Elutia Inc. (Nasdaq: ELUT) (“Elutia” or the “Company”), a pioneer in drug-eluting biomatrix technologies, today announced the initiation of an EluPro™ clinical study designed to collect patient outcome data in real-world clinical practice. EluPro, the first and only FDA-cleared antibiotic-eluting bioenvelope designed for use with cardiac implantable electronic devices (CIEDs) and neurostimulators, was commercially launched earlier this year. The first patient was enrolled at UC San Diego Health. “Every innovation we pursue is driven by a commitment to improving patient care,” said Kimberly Mulligan, PhD, Vice President and General Manager of Cardiovascular at Elutia. “With EluPro, we combined trusted antibiotics with a soft, regenerative biomatrix to protect the implant, facilitate implantation, and support healing. This study will allow us to collect data on these differentiating characteristics in real-world practice.” The multi-center clinical study is a prospective, post-market study designed to evaluate the use of EluPro in standard clinical practice and its performance across a diverse population of patients undergoing CIED implantation. Data on clinical and patient-reported outcomes will be collected, which will include assessments of key complications of interest following CIED implantation - such as infection, hematoma, lead dislodgement, device migration or erosion, and implant site complications. The study plans to enroll 100 patients, who will be followed for 12 months after device implantation. Each year, more than 600,000 CIEDs are implanted in the U.S., with overall complication rates up to 5-7%, including infections linked to higher morbidity and mortality. EluPro is cleared for use across all major CIED brands including pacemakers and implantable defibrillators, as well as for a wide range of neurostimulation devices. Unlike synthetic alternatives, EluPro addresses this critical need by combining the antibiotics rifampin and minocycline with a soft, regenerative biomatrix that promotes healing and helps reduce other complications, such as migration and erosion. The CIED protection market is valued at $600 million in the U.S. To learn more, visit www.elutia.com/products/elupro/. About Elutia Elutia develops and commercializes drug-eluting biomatrix products to improve compatibility between medical devices and the patients who need them. With a growing population in need of implantable technologies, Elutia’s mission is humanizing medicine so patients can thrive without compromise. For more information, visit www.Elutia.com. Forward Looking Statements This press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements can be identified by words such as “projects,” “may,” “will,” “could,” “would,” “should,” “believes,” “expects,” “anticipates,” “estimates,” “intends,” “plans,” “potential,” “promise” or similar references to future periods. All statements contained in this press release that do not relate to matters of historical fact should be considered forward-looking statements, including any statements and information concerning the EluPro Registry Study, including the timing and anticipated data, and the value of the CIED protection market. These forward-looking statements are based on our management’s beliefs and assumptions and on information currently available to us. Such beliefs and assumptions may or may not prove to be correct. Additionally, such forward-looking statements are subject to a number of known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied in the forward-looking statements, including, but not limited to the following: our ability to successfully commercialize, market and sell our newly approved EluPro product; our ability to continue as a going concern; our ability to achieve or sustain profitability; the risk of product liability claims and our ability to obtain or maintain adequate product liability insurance; our ability to defend against the various lawsuits and claims related to our recalled FiberCel and other viable bone matrix products and avoid a material adverse financial consequence from those lawsuits and claims; the continued and future acceptance of our products by the medical community; our ability to enhance our products, expand our product indications and develop, acquire and commercialize additional product offerings; our dependence on our commercial partners and independent sales agents to generate a substantial portion of our net sales; our dependence on a limited number of third-party suppliers and manufacturers, which, in certain cases are exclusive suppliers for products essential to our business; our ability to successfully realize the anticipated benefits of the November 2023 sale of our Orthobiologics business; physician awareness of the distinctive characteristics, benefits, safety, clinical efficacy and cost-effectiveness of our products; our ability to compete against other companies, most of which have longer operating histories, more established products and/or greater resources than we do; pricing pressure as a result of cost-containment efforts of our customers, purchasing groups, third-party payors and governmental organizations could adversely affect our sales and profitability; our ability to obtain regulatory approval or other marketing authorizations by the FDA and comparable foreign authorities for our products and product candidates; and our ability to obtain, maintain and adequately protect our intellectual property rights; and other important factors which can be found in the “Risk Factors” section of Elutia’s public filings with the Securities and Exchange Commission (“SEC”), including Elutia’s Annual Report on Form 10-K for the year ended December 31, 2024, as such factors may be updated from time to time in Elutia’s other filings with the SEC, accessible on the SEC’s website at www.sec.gov and the Investor Relations page of Elutia’s website at https://investors.elutia.com. Because forward-looking statements are inherently subject to risks and uncertainties, you should not rely on these forward-looking statements as predictions of future events. Any forward-looking statement made by Elutia in this press release is based only on information currently available and speaks only as of the date on which it is made. Except as required by applicable law, Elutia expressly disclaims any obligations to publicly update any forward-looking statements, whether written or oral, that may be made from time to time, whether as a result of new information, future developments or otherwise. Investors:Matt SteinbergFINN Partnersmatt.steinberg@finnpartners.com This press release was published by a CLEAR® Verified individual.

导 读在感染性疾病研究领域，宿主遗传因素、微生物群调控及免疫机制的交叉作用为破解疾病发病机制提供了新方向。在欧洲临床微生物学与感染病学会全球大会（ESCMID Global 2025）大会上，多项国际前沿研究利用全基因组关联分析、基因组测序、转录组测序以及单细胞测序技术，深入探讨感染性疾病的发病机制以及病原微生物在结直肠癌、宫颈癌、中枢神经系统疾病发生发展中的作用，对于疾病的防治具有重要意义。01分离株全基因组测序、宏基因组测序及宿主转录组分析揭示儿童肺炎支原体感染反弹及耐药株致病机制北京儿童医院的研究人员通过对中国北京、保定地区169株肺炎支原体临床分离株及全球290个公开基因组的全基因组分析，发现北京地区以4-5-7-2 基因型为主（占比超 80%），保定地区则流行4-5-7-2 与 3-5-6-2 基因型（共占 75%）。功能基因富集分析结果显示，4-5-7-2基因型显著富集毒力相关基因，如黏附蛋白的编码基因，且大环内酯类抗生素耐药率接近100%，主要由23S rRNA基因的A2063G突变导致，使得阿奇霉素、红霉素等一线药物失效。这一研究表明，新冠疫情后中国儿童肺炎支原体感染爆发的核心驱动因素为4-5-7-2 等优势基因型的克隆传播及超高的大环内酯耐药率，这为临床紧急调整抗生素策略提供了依据，为后续感染防控与精准治疗奠定基础。同样是针对肺炎支原体，北京儿童医院的另一研究团队则聚焦大环内酯无反应性支原体肺炎（MUMPP），其发生可能与大环内酯耐药肺炎支原体（MRMP）感染、宿主过度免疫反应及其他病原体共感染密切相关。研究人员通过分析MUMPP儿童下呼吸道微生物群及宿主转录组，以揭示MUMPP的潜在致病机制。该研究纳入88例接受大环内酯类抗生素治疗至少3天且无效、后续换用米诺环素的MUMPP儿童，依据支气管镜病理结果分为三组：黏膜侵蚀伴高分泌组（MucES-HS，18 例）、单纯黏膜高分泌组（MucHS，27 例）和正常组（43 例）。结果发现，MucES-HS组的微生物多样性显著低于其他组，提示黏膜侵蚀与下呼吸道微生物多样性降低相关。肺炎支原体在所有组别的下呼吸道微生物群中均占主导地位，其总负荷、相对丰度与外周血炎症指标强相关。宿主转录组的分析结果则表明，肺炎支原体感染可能通过激活宿主固有免疫和炎症反应加剧病情。该研究为解析MUMPP的发病机制提供了新证据，同时强调了结合支气管镜病理分型进行个体化诊疗的重要性。02多组学及单细胞测序揭示牙周梭杆菌通过癸酸-中性粒细胞轴促进结直肠癌发生机制结直肠癌（CRC）是全球高发恶性肿瘤之一，有研究发现，肠道微生物群失衡及免疫失调与CRC的发生发展相关，但具体致病微生物及分子机制尚不明确。北京协和医院的研究团队通过宏基因组学、代谢组学和单细胞转录组测序等技术，对53例CRC患者、35例腺瘤患者及35例健康人的粪便样本以及3例CRC组织、3例癌旁组织和3例腺瘤组织进行多组学整合分析，以探讨宿主与微生物互作在肿瘤发生中的作用。微生物组学结果表明，CRC患者肠道菌群组成及功能发生了显著改变，其中，牙周梭杆菌被最新发现（Fusobacterium periodonticum）在CRC中特异性富集。此外，功能代谢组学结果显示CRC患者中长链脂肪酸合成通路也出现了异常激活，其中癸酸、棕榈酸等代谢物水平与牙周梭杆菌丰度呈显著正相关。同时，单细胞转录组测序发现CRC肿瘤组织中性粒细胞趋化因子CXCL8呈现高表达，以此驱动中性粒细胞相关免疫通路的激活。体外实验及动物实验结果也表明，牙周梭杆菌产生的癸酸可促进中性粒细胞迁移，并上调白细胞迁移及促癌相关基因的表达，其通过调控中性粒细胞浸润促进肠道肿瘤的形成。首次揭示牙周梭杆菌通过合成癸酸驱动中性粒细胞趋化、重塑肿瘤微环境，进而促进结直肠癌发生的新机制。因此，该研究深化了对CRC发病机制的认识，也为利用多组学整合分析来解析复杂疾病提供了范例。03细菌及宿主RNA-seq助力hv-CRKP毒性的机制研究高毒力碳青霉烯耐药肺炎克雷伯菌（hv-CRKP）是医疗相关感染的新威胁，不过，对于其携带的新型质粒“pvirhs1”的致病机制尚不明确。复旦大学华山医院的研究团队采用细菌RNA-seq及小鼠肺RNA-seq，深入探究了pvirhs1质粒在hv-CRKP致病性中的作用。体外实验结果显示，pvirhs1组与肺上皮类器官共培养时，出现了更强的细胞损伤能力；小鼠感染实验中，pvirhs1组小鼠体重下降更显著，肺组织也表现出更广泛的出血、炎症浸润和结构破坏。此外，宿主RNA-seq分析显示，pvirhs1感染组小鼠肺组织中，IL-2、IL-4、IL-8等促炎细胞因子水平显著升高；细菌RNA-seq分析显示铁离子稳态、鞭毛组装及脂多糖生物合成通路显著激活，且其鞭毛长度更长、复杂性更高、黏附能力更强。因此，该研究表明，携带pvirhs1质粒的hv-CRKP通过增强鞭毛和脂多糖合成，强化细菌对宿主细胞的黏附与侵袭能力，同时诱导宿主的过度炎症反应，进而导致更严重的肺部感染。这也提示，临床上需要重视对该质粒的早期检测，以实现感染的精准干预和治疗，降低重症风险。The RNA-seq and cytokine responses in different groups.The bacteria RNA-seq in groups and pilus in the hypervirulent strain04GWAS分析提示ABCG1基因变异与蜱传脑炎易感性相关蜱传脑炎（TBE）是由蜱传脑炎病毒（TBEV）引起的中枢神经系统感染性疾病，临床表现为脑膜炎、脑炎、脊髓炎等。截至目前，宿主的遗传因素在TBE易感性及发病机制中的作用尚不明确。格拉茨医科大学的研究团队对1600例TBE病例和9699例对照进行全基因组关联研究（GWAS），并结合体外功能实验，探索了与TBE易感性相关的关键遗传因素。他们在21号染色体的ABCG1基因内发现两个独立的内含子变异（rs35873421 和 rs3787986），两者与TBE易感性呈显著关联，这两个变异还可以影响ABCG1在外周血中的基因表达。体外实验结果也显示，抑制ABCG1功能或沉默ABCG1的表达，可显著减少TBE病毒在神经元细胞和巨噬细胞中的复制，表明ABCG1对病毒复制具有促进作用。因此，该研究为理解宿主遗传因素对TBE的影响奠定了基础，有望为TBE的精准防治策略开发提供新的思路。05孕期抗生素暴露显著影响阴道耐药基因谱及宫内感染治疗风险宫内感染是导致孕产妇和新生儿发病及死亡的重要原因，而抗生素耐药性的加剧使相关治疗面临更加严峻的挑战。不过，怀孕期间阴道菌群中抗生素耐药基因（ARGs）及其受抗生素暴露的影响尚不清楚。法国鲁昂大学医学院附属医院的研究团队通过对1543名孕妇（1938份阴道样本）孕晚期的阴道样本进行宏基因组分析，发现阴道微生物组中存在547种ARGs，其中60%与b-内酰胺类耐药相关。此外，大环内酯类和四环素类的耐药基因最为丰富，其中lsa(C)和tet(M)是最常见且丰度最高的ARGs。更加重要的是，孕期使用抗生素组在分娩时的b-内酰胺类耐药ARGs丰度较未使用组增加了2倍，其耐药表型多样性也均显著高于未使用组。该研究提示，孕期抗生素的使用可能通过改变阴道耐药组的基因分布和表型谱，进而影响宫内感染的治疗策略，因此需进一步关注耐药表型多样性在临床中的潜在风险。06单细胞RNA测序揭示伯氏疏螺旋体逃避宿主免疫机制伯氏疏螺旋体（Borrelia burgdorferi）是引发莱姆病的病原体，作为北半球最常见的虫媒传染病，其感染会触发宿主固有免疫和适应性免疫反应，但宿主难以清除病原体，导致细菌持续存在并通过蜱媒传播。芬兰图尔库大学的研究人员借助单细胞转录组测序，发现伯氏疏螺旋体感染小鼠的生发中心在感染早期被快速启动，但随后被抑制，表现为B细胞中抗原呈递相关基因表达下调，抗体类别转换偏向IgG3、IgG2b、IgG2c 亚类（非中和性抗体），而保护性 IgG1 亚类则出现了下降。此外，细胞通讯与调控也出现了异常，例如，调节性T细胞和滤泡调节性T细胞活性升高，分泌IL-10等抑制性细胞因子；B细胞中Socs1和Socs3持续高表达，阻断 JAK-STAT 信号通路，抑制B细胞活化及生发中心分化，导致T-B细胞间通讯受阻等。因此，该研究揭示了伯氏疏螺旋体通过操纵生发中心进而逃避宿主免疫防御，为理解莱姆病慢性感染的免疫逃逸机制提供了新视角。07嗜血杆菌属在COPD急性加重期通过菌群失衡等加剧病情慢性阻塞性肺疾病（COPD）是与呼吸道微生物组成密切相关的呼吸系统疾病，虽然有研究表明流感嗜血杆菌与COPD的急性加重（AECOPD）相关，但嗜血杆菌属在COPD不同疾病阶段的作用及特征尚不明确。西班牙巴塞罗那贝尔维特医院的研究团队对57例COPD患者（其中24例为AECOPD、19例为稳定期频繁急性加重、14例为稳定期非急性加重）的痰样本进行分析，旨在揭示嗜血杆菌属在疾病发生发展中的关键作用。研究结果表明，AECOPD组微生物多样性显著降低，其中，该研究嗜血杆菌属是唯一在AECOPD组相对丰度显著高于稳定期的菌属，而流感嗜血杆菌的存在与该属丰度升高密切相关。进一步的分析发现，流感嗜血杆菌与副流感嗜血杆菌存在遗传异质性，后者抗菌耐药性显著更高，且两者携带不同耐药相关基因突变。因此，证实嗜血杆菌属在COPD发病机制中具有关键作用，尤其在AECOPD期通过流感嗜血杆菌增殖和微生物多样性降低加剧菌群失衡。08脑肿瘤患者肠道菌群研究近年来，肠脑轴在中枢神经系统（CNS）疾病中的作用日益受到关注，但其在脑肿瘤发生发展中的具体机制仍不明确。土耳其埃尔吉耶斯大学的研究人员通过16S rRNA测序对比鞍区/鞍旁肿瘤、其他脑肿瘤患者与健康人的肠道微生物组成及代谢特征，探索微生物在CNS肿瘤中的潜在作用。通过ROC曲线评估标志物的鉴别效能，重点分析相对丰度数据对诊断效能的影响。研究结果表明，健康人肠道菌群多样性显著高于脑肿瘤患者，集与免疫调节相关的有益菌属（如毛螺菌属、粪杆菌属），而肿瘤组则以芽孢杆菌属等促炎菌种为主。研究发现，结合细菌相对丰度数据可显著增强诊断的效能，例如毛螺菌属AUC 从0.50提升至0.76；拟杆菌属从0.56提升至0.73。而粪杆菌属的AUC始终稳定在0.93，不受丰度影响。该研究为开发基于微生物的诊断和治疗策略、架起肠道菌群研究与CNS肿瘤研究的桥梁奠定了基础。09宿主+病原宏转录组分析揭示NSTIs中的病原-宿主互作坏死性软组织感染（NSTIs）是一类病情凶险、进展迅速的严重感染性疾病，且宿主与病原体的分子互作机制仍未被充分解析。来自印度的研究团队采用宿主及病原宏转录组分析（Meta-transcriptome analysis）策略，对3例健康组织活检样本与3例NSTI坏死组织样本进行对比分析，结果发现NSTI样本与健康样本的基因表达模式存在显著差异，NSTI样本中检测到23831个下调转录本和3066个上调转录本，下调基因数量约为上调基因的8倍，提示宿主防御相关功能可能被广泛抑制。通路富集分析同样表明NSTI样本中多条生物学通路显著下调，提示宿主在感染过程中可能出现免疫应答、组织修复等关键功能的失调。该研究通过宏转录组分析首次揭示了NSTIs中广泛存在的基因表达失调和通路破坏，为理解多微生物感染如何重塑宿主转录组提供了新视角。10嗜麦芽窄食单胞菌通过线粒体功能紊乱驱动宫颈癌进展宫颈癌是全球女性高发恶性肿瘤，研究表明，人乳头瘤病毒（HPV）感染与宫颈微生物群动态变化共同参与肿瘤进展，但微生物在宫颈癌发生中的具体作用及与宿主的互作机制尚不明确。来自印度的一项研究通过分析正常宫颈、癌前病变及宫颈癌组织的微生物组、抗生素耐药基因及宿主细胞功能变化，探讨了关键致病细菌在宫颈癌进展中的潜在作用。研究表明，宫颈微生物群随癌症进展显著失调，与正常宫颈相比，宫颈癌组织中嗜麦芽窄食单胞菌、肺炎克雷伯菌等致病菌丰度显著升高，而乳酸杆菌属等有益菌显著减少，微生物多样性也下降了40%。进一步的研究发现，嗜麦芽窄食单胞菌通过线粒体功能紊乱促癌，同时，肺炎克雷伯菌和嗜麦芽窄食单胞菌的生物膜产量较正常组高出2-3倍，且与抗生素耐药基因变异呈正相关。该研究首次证实嗜麦芽窄食单胞菌通过调控线粒体功能和诱导氧化应激参与宫颈癌进展，也深化了对宿主-微生物互作驱动肿瘤发生的认识，为开发基于微生物的宫颈癌防治策略奠定了基础。11ARPI治疗前列腺癌对肠道微生物群的扰动前期有研究表明，前列腺癌（PC）的发生发展与肠道微生物群密切相关，雄激素受体通路抑制剂（ARPI）作为转移性前列腺癌的常用治疗药物，其对肠道微生物群的潜在影响尚不清楚。西班牙维戈大学附属医院的研究人员采用鸟枪法测序对接受ARPI治疗的转移性前列腺癌患者的肠道微生物群特征进行了分析，结果发现，ARPI治疗组的微生物丰富度显著低于未治疗组，两组的b多样性也存在显著的差异。ARPI治疗组的Butyricimonas、Enterocloster、Flavonifractor、Sutterella等菌属丰度显著降低，而Alistipes merdavium、Intestinibacter则显著富集，其PI3K-AKT信号通路（细胞存活相关）显著下调，而与二氢睾酮合成相关的通路则出现了富集。总之，该研究发现接受ARPI治疗的转移性前列腺癌患者存在肠道微生物群失调，因此，监测肠道微生物群的动态变化可为前列腺癌个体化治疗提供依据。结语总之，上述这项研究不仅深化了对感染性疾病、肿瘤等复杂疾病发病机制的认知，更在耐药性防控、微生物靶向治疗、遗传风险评估等领域提供了创新思路，为推动精准医疗与个体化诊疗策略的研发奠定了重要基础。参考来源：1.ESCMID Global 2025 L0026 Genome-wide association study identifies ABCG1 as a susceptibility locus for tick-borne encephalitis.2.ESCMID Global 2025 O0129 Multi-omics integrated analysis revealed the key role of Fusobacterium periodonticum in colorectal tumorigenesis by decanoic acid-promoting neutrophil chemotaxis.3.ESCMID Global 2025 O0130 Exploring the respiratory microbiome in COPD patients: the role of Haemophilus spp. in disease pathogenesis.4.ESCMID Global 2025 O0193 Antibiotic resistance genes diversity and antimicrobial effects in the vaginal microbiome during pregnancy.5.ESCMID Global 2025 O0194 Distinct gut microbiota and metabolic profiles in brain tumor patients: bridging microbial insights to CNS oncology.6.ESCMID Global 2025 O0868 Bacteria and host responses in both mice and human lung organoid model revealed the role of a novel plasmid pvirhs1 in hypervirulent carbapenem-resistant Klebsiella pneumoniae.7.ESCMID Global 2025 O0870 Meta-transcriptomic insights into host-pathogen interactions in necrotising soft tissue infections using differential analysis.8.ESCMID Global 2025 P0909 Whole-genome analysis unveils genetic factors driving the Mycoplasma pneumoniae outbreak among children post-COVID-19 in China.9.ESCMID Global 2025 P0912 Integrated study of respiratory microbiota and host response in children with macrolide-unresponsive Mycoplasma pneumoniae pneumonia.10.ESCMID Global 2025 P1017 Microbiome analysis of cervical cancer identified Stenotrophomonas as a potential pathogen involved in tumor progression.11.ESCMID Global 2025 P3461 Gut microbiota in patients with metastasic prostate cancer: analysis of potential effects of androgen receptor pathway inhibitors.12.ESCMID Global 2025 P3549 Single-cell profiling of T-dependent immune response of Borrelia burgdorferi infection in a murine model.* 本文转自测序中国公众号.