含有 Annexin V Alexa Fluor 488 和 PI 的死细胞凋亡试剂盒 含有 Annexin V Alexa Fluor 488 和碘化丙啶 (PI) 的死细胞凋亡试剂盒 (V13241, V13245) 用于进行流式细胞分析,通过检测磷脂酰丝氨酸 (PS) 表达和膜通透性来测量早期细胞凋亡。当细胞用 Annexin V 和碘化丙啶染色时,表达 PS 的凋亡细胞显示绿色荧光,可在 FITC 通道中检测到,并显示低红色荧光。死亡或坏死细胞显示明亮的红色荧光,无绿色荧光,而活细胞显示无绿色或红色荧光。
含有 Annexin V PE 和 SYTOX Green 的死细胞凋亡试剂盒 含有 Annexin V PE 和 SYTOX Green 的死细胞凋亡试剂盒可在流式细胞分析期间使用偶联橙色荧光藻胆蛋白 R-PE 的重组膜联蛋白 V 检测凋亡细胞的 PS 外化,死细胞则用 SYTOX Green 核酸染色剂进行检测。经过两种探针处理后,凋亡细胞显示橙色荧光,死细胞显示绿色荧光,活细胞几乎不显示荧光。在使用 488 nm 激光流式细胞仪的 530/30 nm 和 585/42 nm 带通滤光片中可轻松区分这些细胞群。
含有 Annexin V APC 和 SYTOX Green 的死细胞凋亡试剂盒 含有 Annexin V APC 和 SYTOX Green 的死细胞凋亡试剂盒可在流式细胞分析期间使用偶联红色激光激发别藻蓝蛋白的重组膜联蛋白 V 检测凋亡细胞的 PS 外化,死细胞则用 SYTOX Green 核酸染色剂进行检测。通过与外化 PS 结合的膜联蛋白 V 检测凋亡细胞。活细胞几乎不显示荧光,凋亡细胞显示红色荧光和极少的绿色荧光,晚期凋亡细胞显示较高水平的红色和橙色荧光。这些细胞群可以很容易地通过含有 488 nm 和 633 nm 激发源(氩离子激光器和 HeNe 激光器)的流式细胞仪加以区分。
含 Annexin V FITC 和 PI 的死细胞凋亡试剂盒 含 Annexin V FITC 和 PI 的死细胞凋亡试剂盒可使用偶联绿色荧光 FITC 染料的重组膜联蛋白 V 检测凋亡细胞的 PS 外化,死细胞则用 PI 进行检测。经 PI 染色的坏死细胞显示红色荧光。两种探针处理后,凋亡细胞显示绿色荧光,死细胞显示红色和绿色荧光,活细胞显示少量或无荧光。
When using Dead Cell Apoptosis Kits with Annexin V for Flow Cytometry, what does a PI+ only population (hence Annexin V negative) correspond to?
These products are cells that died without undergoing apoptosis. A PI+ only population could be either a result of experimental condition or sample preparation.
H2AX phosphorylation within the G1 phase after UV irradiation depends on nucleotide excision repair and not DNA double-strand breaks.
Authors:Marti TM, Hefner E, Feeney L, Natale V, Cleaver JE
Journal:Proc Natl Acad Sci U S A
PubMed ID:16788066
'The variant histone H2AX is phosphorylated in response to UV irradiation of primary human fibroblasts in a complex fashion that is radically different from that commonly reported after DNA double-strand breaks. H2AX phosphorylation after exposure to ionizing radiation produces foci, which are detectable by immunofluorescence microscopy and have been adopted ... More
Aberrant T cell differentiation in the absence of Dicer.
Authors:Muljo SA, Ansel KM, Kanellopoulou C, Livingston DM, Rao A, Rajewsky K
Journal:J Exp Med
PubMed ID:16009718
'Dicer is an RNaseIII-like enzyme that is required for generating short interfering RNAs and microRNAs. The latter have been implicated in regulating cell fate determination in invertebrates and vertebrates. To test the requirement for Dicer in cell-lineage decisions in a mammalian organism, we have generated a conditional allele of dicer-1 ... More
Nuclear relocation of the nephrin and CD2AP-binding protein dendrin promotes apoptosis of podocytes.
Authors:Asanuma K, Campbell KN, Kim K, Faul C, Mundel P
Journal:Proc Natl Acad Sci U S A
PubMed ID:17537921
'Kidney podocytes and their slit diaphragms (SDs) form the final barrier to urinary protein loss. There is mounting evidence that SD proteins also participate in intracellular signaling pathways. The SD protein nephrin serves as a component of a signaling complex that directly links podocyte junctional integrity to actin cytoskeletal dynamics. ... More
An anti-transferrin receptor-avidin fusion protein exhibits both strong proapoptotic activity and the ability to deliver various molecules into cancer cells.
Authors:Ng PP, Dela Cruz JS, Sorour DN, Stinebaugh JM, Shin SU, Shin DS, Morrison SL, Penichet ML
Journal:Proc Natl Acad Sci U S A
PubMed ID:12149472
'We have developed an antibody fusion protein (anti-rat TfR IgG3-Av) with the ability to deliver different molecules into cancer cells. It consists of avidin genetically fused to the C(H)3 region of a human IgG3 specific for the rat transferrin receptor. It forms strong, noncovalent interactions with biotinylated molecules such as ... More
Protein kinase Cepsilon activates protein kinase B/Akt via DNA-PK to protect against tumor necrosis factor-alpha-induced cell death.
Authors:Lu D, Huang J, Basu A
Journal:J Biol Chem
PubMed ID:16785234
'We have previously shown that protein kinase Cepsilon (PKCepsilon) protects breast cancer cells from tumor necrosis factor-alpha (TNF)-induced cell death. In the present study, we have investigated if the antiapoptotic function of PKCepsilon is mediated via Akt and the mechanism by which PKCepsilon regulates Akt activity. TNF caused a transient ... More