以下是一些建议:
o 在获取板之前,在 Luminex 仪器上运行校准和验证珠。
o 查看仪器设置并确保它们适合正在运行的检测(调整针高,确保选择正确的珠门和正确的 DD 设置)。
o 在仪器上采集前摇动板以重新悬浮珠子。
o 将珠子涡旋 30 秒,然后再将它们添加到板中。
o 清洗:在清空板之前,不要忘记将板放在手持式磁性洗板机上约 2 分钟。
这种模式表明样本基质效应。以下是一些建议:
o 确认样品已澄清且不含碎片和脂质(建议离心 5-10 分钟)。
o 确认血清、血浆样品的样品与测定稀释剂的比例至少为 1:1。对于细胞裂解物或组织匀浆,确认样品已在测定缓冲液中适当稀释,以将裂解缓冲液中的去污剂浓度降低至≤0.01%。对于其他样品类型,可能需要进一步的样品优化。
Authors:Gao J, Duan Z, Zhang L, Huang X, Long L, Tu J, Liang H, Zhang Y, Shen T, Lu F
Journal:
PubMed ID:26942056
Dysfunction of natural killer (NK) cells has been implicated in the failure of antitumor immune responses in hepatocellular carcinoma (HCC) patients. However, the changes of NK profile in peripheral blood after surgery and tumor tissues of HCC patients, as well as the underlying reason and the significance are vague. Here, ... More
Characterization of clinical and immunological features in patients coinfected with dengue virus and HIV.
Authors:Torrentes-Carvalho A, Hottz ED, Marinho CF, da Silva JB, Pinto LM, Fialho LG, Bozza FA, Cunha RV, Damasco PV, Kubelka CF, de Azeredo EL
Journal:Clin Immunol
PubMed ID:26826597
'The pathogenesis of dengue in subjects coinfected with HIV remains largely unknown. We investigate clinical and immunological parameters in coinfected DENV/HIV patients. According to the new dengue classification, most coinfected DENV/HIV patients presented mild clinical manifestations of dengue infection. Herein, we show that DENV/HIV coinfected patients had higher CD8 T ... More
A xenograft model of macrophage activation syndrome amenable to anti-CD33 and anti-IL-6R treatment.
Authors:Wunderlich M, Stockman C, Devarajan M, Ravishankar N, Sexton C, Kumar AR, Mizukawa B, Mulloy JC
Journal:JCI Insight
PubMed ID:27699249
Transgenic expression of key myelosupportive human cytokines in immune-deficient mice corrects for the lack of cross-species activities of stem cell factor (SCF), IL-3, and GM-CSF. When engrafted with human umbilical cord blood (UCB), these triple-transgenic mice produce BM and spleen grafts with much higher myeloid composition, relative to nontransgenic controls. ... More
No effect of anti-TNF-a agents on the surgical stress response in patients with inflammatory bowel disease undergoing bowel resections: a prospective multi-center pilot study.
Authors:El-Hussuna A, Qvist N, Zangenberg MS, Langkilde A, Siersma V, Hjort S, Gögenur I
Journal:BMC Surg
PubMed ID:30390672
TNF-a plays a role in angiogenesis and collagen synthesis, both essential in the wound healing process. There are concerns that pre-operative anti-TNF-a treatment may influence the surgical stress response and increase the risk of surgical complications. The aim of this study was to describe the surgical stress response in patients ... More