l**********1 发帖数: 5204 | 1 plus
share this one
PMID 23374346
by Mugoni V et al.
Ubiad1 is an antioxidant enzyme that regulates eNOS activity by CoQ10
synthesis. (2013)
Cell. 152: 504-18.
key words: hypoxia, eNOS, tumor suppressor
and
eNOS
is a ‘‘L-arginine, NADPH:oxygen oxidoreductases, NO-forming
enzyme’’ (EC 1.14.13.39) that couples reduction of molecular
oxygen to L-arginine oxidation and generation of L-citrulline
and NO'.
web link:
http://www.ncbi.nlm.nih.gov/pubmed/23374346 |
|
l**********1 发帖数: 5204 | 2 pls try Multiplex PCR by A, B and C three primers set (below figure that
X, Y, Z as A, B, C primers)
PMID 19936220
Generation and characterization of mice carrying a conditional allele of the
Wwox tumor suppressor gene. (2009).
PLoS One. 4: e7775.
http://www.ncbi.nlm.nih.gov/pubmed/19936220
or refer
Biology版 - 有没有可能出现假KNOCKOUT的情况?
hashuoy
2010-09-09 13:52:31
来自: 192.168.
1从公司订制的KO老鼠,带CRE基因,大半年折腾下来去掉CRE并拿到大量杂合子,按照公司
给的DATA SHEET, GENOTYPING双引物鉴定老鼠各基因表型正常,符合孟德尔遗传,但在对
培养的野生型和纯合子MEF细胞鉴定时,我发现虽... 阅读全帖 |
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l******a 发帖数: 3339 | 3 真是搞笑,现在很多promoter克隆甚至是gene克隆还是参考了以前发表的文章,照你这
么说大家先歇着,等基因组测序完成了再来做试验好了?
suppressor |
|
s******n 发帖数: 110 | 4 J Hepatol. 2009 Jun;50(6):1132-41. doi: 10.1016/j.jhep.2009.01.027. Epub
2009 Apr 1.
Unsaturated fatty acids promote hepatoma proliferation and progression
through downregulation of the tumor suppressor PTEN.
请发到我邮箱: y***[email protected]
万分感谢! |
|
m******g 发帖数: 467 | 5 最近感觉要做的事情超多,时间刷的一下就过去了。
Science 14.1.17
推荐:
1. Direct in Vivo RNAi Screen Unveils Myosin IIa as a Tumor Suppressor of
Squamous Cell Carcinomas
稍微了解一下:
1. Ribose—An Internal Threat to DNA
小知识:
1. Many Paths to the Origin of Life
2. Conserved Class of Queen Pheromones Stops Social Insect Workers from
Reproducing |
|
m******g 发帖数: 467 | 6 最近感觉要做的事情超多,时间刷的一下就过去了。
Science 14.1.17
推荐:
1. Direct in Vivo RNAi Screen Unveils Myosin IIa as a Tumor Suppressor of
Squamous Cell Carcinomas
稍微了解一下:
1. Ribose—An Internal Threat to DNA
小知识:
1. Many Paths to the Origin of Life
2. Conserved Class of Queen Pheromones Stops Social Insect Workers from
Reproducing |
|
x*********i 发帖数: 325 | 7 多谢回复,是一个ongogene和tumor suppressor的binding, 不奢望BBRC, 只要是个
JOURNAL就行 |
|
W*T 发帖数: 359 | 8 很赞同LZ的建议。The balance between differentiation and dediferentiation is
critical and is way less appreciated by the cancer research community. In
my own experience, loss of some tumor suppressor protein function cause
less proliferation but also cause dedifferentiation.
proliferation和apoptosis被“重视" is because the phenotype is easily and
quickly characterized. But cancer is the a chronic disease so slow
proliferation does not matter at the initiation stage. |
|
m********2 发帖数: 317 | 9 我的一个ko小鼠出现肿瘤了,测了几个tumor suppressor 的表达情况,如p53,没有变
化。做了免疫能力测试,footpad assay,发现ko小鼠免疫能力下降。 老板想让我去测
免疫相关基因western,我测了nfkb,没有变化。
请问还有什么其他重要的免疫系统基因吗?
谢谢 |
|
v*******e 发帖数: 11604 | 10 别的 tumor suppressor? RB1, p16, p21 ...
P53也要看是不是变异了。 |
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V******t 发帖数: 444 | 11 很好 谢谢分享
刚好看了一篇文
说是四倍体 多个centrosome 会激活Hippo pathway 让Lats2表达 使得细胞抑制在G1期
Ganem, N. J., et al. (2014). "Cytokinesis failure triggers hippo tumor
suppressor pathway activation." Cell 158(4): 833-848.
G1 |
|
V******t 发帖数: 444 | 12 很好 谢谢分享
刚好看了一篇文
说是四倍体 多个centrosome 会激活Hippo pathway 让Lats2表达 使得细胞抑制在G1期
Ganem, N. J., et al. (2014). "Cytokinesis failure triggers hippo tumor
suppressor pathway activation." Cell 158(4): 833-848.
G1 |
|
w***r 发帖数: 709 | 13 "Super p53" mice exhibit enhanced DNA damage response, are tumor resistant
and
age normally.
García-Cao I(1), García-Cao M, Martín-Caballero J, Criado LM, Klatt P,
Flores JM,
Weill JC, Blasco MA, Serrano M.
Author information:
(1)Spanish National Center of Biotechnology, Department of Immunology and
Oncology, Campus de Cantoblanco, Madrid E-28049, Spain.
The tumor suppressor p53 is critical in preventing cancer due to its ability
to
trigger proliferation arrest and cell death upon the occurrence... 阅读全帖 |
|
w***r 发帖数: 709 | 14 1. Nature. 2002 Jan 3;415(6867):45-53.
p53 mutant mice that display early ageing-associated phenotypes.
Tyner SD(1), Venkatachalam S, Choi J, Jones S, Ghebranious N, Igelmann H, Lu
X,
Soron G, Cooper B, Brayton C, Park SH, Thompson T, Karsenty G, Bradley A,
Donehower LA.
Author information:
(1)Cell and Molecular Biology Program, Baylor College of Medicine, Houston,
TX
77030, USA.
Comment in
Nature. 2002 Jan 3;415(6867):26-7.
The p53 tumour suppressor is activated by numerous stressors to ind... 阅读全帖 |
|
A***5 发帖数: 2 | 15 Postdoctoral scientist positions are available starting in July 2015 in the
Molecular and Cellular Cancer Biology Lab of Dr. Wei Li. Our lab is part of
Penn State Milton S. Hershey Medical Center and Pennsylvania State
University College of Medicine located in Hershey, Pennsylvania.
We are interested in studying intercellular interactions during tissue
homeostasis and determining how de-regulated interactions among cells
promote cell transformation and tumor progression. The goal of our research... 阅读全帖 |
|
r******k 发帖数: 446 | 16 感觉挺有意思的 有些癌症里面是tumor suppressor 有些事tumor promoter。 不知道
有没有大神们研究过 可以给大家普及普及 |
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l********n 发帖数: 260 | 17 1. Zhang P, Wei Y, Wang L, Debeb BG, Yuan Y, Zhang J, Yuan J, Wang M,
Chen D, Sun Y, Woodward W, Liu Y, Dean DC, Liang H, Hu Y, Ang KK, Hung MC,
Chen J, Ma L. ATM-mediated stabilization of ZEB1 promotes DNA damage
response and radioresistance through CHK1. Nat Cell Biol. In Press.
2. Chen D, Sun Y, Yuan Y, Han Z, Zhang P, Zhang J, You MJ, Teruya-
Feldstein J, Wang M, Gupta S, Hung MC, Liang H, Ma L. miR-100 induces
epithelial-mesenchymal transition but suppresses tumorigenesis, migration
a... 阅读全帖 |
|
发帖数: 1 | 18 不但是“协和有人造假”,而且居然是“协和毕业的一对夫妻合伙造假”,奇闻也!
“北京协和一个毕业生因为两篇论文造假被波士顿大学剥夺教师职位”。
王盛毕业于北京协和医学院,获得博士学位,到美国后在哥伦比亚大学和纽约大学做过
博士后,2000年受聘到波士顿大学医学院癌症研究中心工作。他在乳腺癌研究方面有不
少成果。
王盛涉嫌造假的这两篇论文,第一作者均是张葆华(Baohua Zhang,音译)。张葆华是
王盛的妻子,1984年北京医学院牙科专业毕业,其后在北京协和医学院获得硕士学位。
不但是“协和有人造假”,而且居然是“协和毕业的一对夫妻合伙造假”,奇闻也!
现在韩春雨和沈啸两个作者也是协和人,成双出没是协和人造假的特征?需要N+1的例
子。
=================================================================
在美华裔研究者伪造论文数据遭重罚
一位在波士顿大学医学院癌症研究中心担任助理教授的华裔研究人员王盛(Sheng Wang
,音译)由于在发表的两篇论文中伪造数据,失去了在波士顿大学的教职。
科研道德办公室年度报告
8月5日... 阅读全帖 |
|
a******r 发帖数: 786 | 19 楼上说的对,global hypomethylation 已经测出来很多次了。
癌症里还要看cancer suppressor gene 会有hypermethylation,特别是promoter
话说dnmt expression 跟 methylation level 好像没有必然联系,这个我不记得
citation 不过没看过强调有联系的。欢迎指正 |
|
发帖数: 1 | 20 实际上我们对cancer甚至整个信号传导的理解还远远不够。我们的知识是碎片化和模糊
的(等我们真正理解之后甚至会发现是错的)。比如一个简单的问题,像Myc, Rb和p53
在基因调控网络中的真正角色是什么我们并不清楚,这不是简简单单一个术语,像
oncogene或者tumor suppressor能概括的。就像组装一个飞机,手下有一大堆零件,但
是只有它们是正调控或者负调控原件的信息,这个飞机拼起来之后肯定要摔下来。
解决这个问题, 一个就是要用更精细的测量方法,和更基于物理事实(有关生物的就
是热动力学,化学反应动力学和统计力学了)的精确数学描述来定量化研究这些问题。
统计学其实是数学中的麦丹劳,是用来寻找相关性的。而只有基于物理定律的数学表达
才有预测的能力。可惜大部分学生物的人数学训练都不够。
mutation
gene |
|
l********a 发帖数: 61 | 21 直接做点突变啊,这种病毒没法自我复制,因为正常细胞里没有uaa,suppressor tRNA
,orthogonal aminoacyl tRNA synthetase |
|
发帖数: 1 | 22
尽管科研的目的是要尽可能接近的呈现事实。但是不同的reasoning, 虽然可能都是
causal的,但是逼近程度可能差的很远,因为reasoning是以concept为基础的。
这么说吧,对现象的任何一种解释总会用到一些术语,但是你仔细推敲起来,并不是每
个术语都靠谱的,有的是自然地,有的则是人为创造的并不一定靠谱。比如我跟你说基
因p53,这个描述是准确的,因为你知道它对应着一段DNA序列,是一个特异的东西。而
我要跟你说oncogene,则相对p53不那么靠谱,因为这个术语是根据phenotype定义的,
这一类基因activate之后会促瘤,对应的还有tumor suppressor。可是事情又没有那么
简单,有些基因在一种情况下促瘤,在另外一些情况下又抑制瘤,那你该怎么定义他们
呢。可是如果你换一个paradigm,在系统的角度下看待这个问题,它的角色或许完全就
由它在网络中所处的位置决定,它的不同角色只是系统运行到不同状态带来的结果,这
或许就能unify了,而且听起来也很自然。
这个例子或许不怎么好,还有一个例子是我以前研究的G1/S transition.教科书上提出... 阅读全帖 |
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h*******o 发帖数: 1114 | 23 能否再继续问个问题, 就是IC的那个suppressor,DIONEX 网站上做anion的有ASAR 300
和ASAR ultra两种型号,但是怎么都查不到二者的区别,请问有人知道吗? |
|
s**********8 发帖数: 25265 | 24 baseline for IC is hard to stablize. need run hrs to overnight to reach a
stable baseline. suppressor may get better after being used for a while.
monitor total conductivity during the run |
|
n*********0 发帖数: 1543 | 25 小孩子得癌症通常是familial cancer,比如视网膜母细胞瘤,因为重要的tumor
suppressor Rb gene 有defect,无法正常工作。一道重要的抑制癌症产生的关卡失去了
。癌变进程大大提速。
还有一种情况就是 gestational mutation,胎儿发育过程中,正好在致癌基因上发生
突变(oncogene),孩子从生命一开始就完成了多数癌症病人到中年才开始的癌变进程。
人体当然有清除癌细胞的机制。防止癌变是多细胞生物的一个重要任务,有非常多关口
来把关保持genetic stability. 当恶性肿瘤发生了,就说明这些关口一道道都被突破
了。这个癌细胞已经是“羽化成仙”了,在这个宿主体内实现了immortality(永生)。
化疗,手术,放疗一切目的都是为了尽可能清除这一株细胞。留下几个,都有可能会卷
土重来。
这是为什么癌症是绝症。
寄希望重建平衡是幼稚的,癌症发生的过程就是一道道攻破防御机制的过程。che
羽化成仙的癌细胞,人体已经拿他没什么办法了。 |
|
|
b**s 发帖数: 589 | 27 Such a idiot reporter
P18 is a protein not a gene
it upregulate other cancer suppressors
I still think dendritic cell therapy is more likely to succeed to cure cancer
patients |
|
w********h 发帖数: 12367 | 28 http://www.korea.net/news/news/newsView.asp?serial_no=20050128001&part=107&Sea
rchDay=
Korean scientists identify cancer suppressor
Date January 28, 2005
Korean scientists have discovered genes in charge of preventing cancer,
bringing a breakthrough in the struggle against the illness.
Seoul National University professor Kim Sung-hoon said on Thursday (Jan. 27)
his research team had found a protein regulator, called p18, which is
ultimately responsible for preventing cancer.
“This p18 can b |
|
d****y 发帖数: 2180 | 29 有苹果产品的人可以充分利用一下。 iTune application store 有不少免费的好东西。
1。 Kaplan Step 1 Qbank: 有最新的150道题,包括了所有的解释和references(对应的
知识
点在FA的page).
刚刚看到了Kaplan step 1 mobile Qbank,如果买了kaplan qbank.可以每次download 46
道
题到你的Ipod /Iphone /Itouch/ iPad mobile Qbank.
2. USMLERx step 1 2009 Flash cards. 免费提供的是FA pathology的 flash cards.
有400张卡片。 最新版本的卡片做的很不错。 用来记那些oncogenes, suppressor
genes 很好。 本来我自己想弄一些,刚好看到有现成的,省了我一些力气,真好。
3。USMLE Buzz Flash Cards Lite. By Andrew Yu. 有一些东西可以看。
还有一些其他的好东西,大家可以自己去搜索一下。
有些不是考试的applications, 比如N... 阅读全帖 |
|
j****u 发帖数: 1413 | 30 新闻与图片花絮请见:http://www.ustcif.org/default.php/content/1605/
加USTCIF为微信好友,即可订阅每日一期中国科大手机新闻报,科大要闻与校友动态尽
在掌握
扫一扫二维码,即可在微信添加好友,每天收到中国科大新闻:
2013年5月2日,肺癌新药发明人、辉瑞公司科学家崔景荣博士(803校友)在北京为中
国
科大校友带来精彩的科普报告《癌症的发生,演变与个体化治疗》。她还介绍她作为主
导发明人的抗癌药克唑替尼 (Crizotinib) 的研发历程,并阐述了她对癌症治疗的抗药
性及抗癌的新理念的看法。
崔景荣领衔的辉瑞公司团队,因发明治疗肺癌新药“克里唑替尼”(Xalkori),2011
年
荣获美国第38届年度国家发明奖,该药2011年在美国上市,之后在北京协和医院、解放
军307医院等地进行中国临床三期实验。2013年,中国食品药品监督管理局(SFDA)批
准
该药在中国上市。
崔景荣介绍癌症的相关基础知识,癌症是细胞生长失控的表现、长期基因突变累积的结
果。她简单列举了诱发癌症的原因,并指出“癌症的复杂性在于癌细胞与周边环境的相
辅... 阅读全帖 |
|
j****u 发帖数: 1413 | 31 新闻与图片花絮请见:http://www.ustcif.org/default.php/content/1605/
加USTCIF为微信好友,即可订阅每日一期中国科大手机新闻报,科大要闻与校友动态尽
在掌握
扫一扫二维码,即可在微信添加好友,每天收到中国科大新闻:
2013年5月2日,肺癌新药发明人、辉瑞公司科学家崔景荣博士(803校友)在北京为中
国
科大校友带来精彩的科普报告《癌症的发生,演变与个体化治疗》。她还介绍她作为主
导发明人的抗癌药克唑替尼 (Crizotinib) 的研发历程,并阐述了她对癌症治疗的抗药
性及抗癌的新理念的看法。
崔景荣领衔的辉瑞公司团队,因发明治疗肺癌新药“克里唑替尼”(Xalkori),2011
年
荣获美国第38届年度国家发明奖,该药2011年在美国上市,之后在北京协和医院、解放
军307医院等地进行中国临床三期实验。2013年,中国食品药品监督管理局(SFDA)批
准
该药在中国上市。
崔景荣介绍癌症的相关基础知识,癌症是细胞生长失控的表现、长期基因突变累积的结
果。她简单列举了诱发癌症的原因,并指出“癌症的复杂性在于癌细胞与周边环境的相
辅... 阅读全帖 |
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a****g 发帖数: 8131 | 32 there is a case called suppressor
R |
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on 发帖数: 199 | 33 There is a lot of articles in internet about low stomach acid problems. Some
claims most people suffer too low instead of too much stomach acid. On the
other hand I failed to find a reputable site and it appears to me the
mainstream view is that if one has a reflux issue an acid suppressor would
be prescribed..
Is the above observation correct? Any comments/thoughts? (I'm a a lay person
) |
|
f**d 发帖数: 768 | 34 这是一本计算神经科学的优秀著作,全文拷贝这里(图和公式缺),有兴趣的同学可以
阅读
如需要,我可以分享PDF文件(--仅供个人学习,无商业用途)
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖 |
|
n***w 发帖数: 2405 | 35 Persistent Hyperplastic Primary Vitreous (PHPV)
Definition: PHPV is a congenital condition with persistent hyaloid
vasculature and mesenchymal tissue from the embryonic primary vitreous in a
microphthalmic eye. It is often seen in combination with other syndromes.
The syndrome has been renamed recently as persistent fetal vasculature.
Incidence/Prevalence: Rare. About 50 cases were seen in a busy pediatric
referral surgery practice over 10 years (Ref 2).
Etiology: Described by Reese in 1949, PHP... 阅读全帖 |
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l*******r 发帖数: 39279 | 36 【 以下文字转载自 Biology 讨论区 】
发信人: zxt (Asoka & Akaba), 信区: Biology
标 题: Re: 大家说说Cancer cell metabolism吧,这个越来越火啊!
发信站: BBS 未名空间站 (Sun Nov 4 01:53:57 2012, 美东)
在做相关项目,上来胡说几句,当是抛砖引玉,大家多多指正
otto warburg老早就发现cancer更喜欢glycolysis,还因此得了诺奖,之前的肿瘤代谢
主要在体外造影上有一定的应用,为啥肿瘤代谢要到现在又火了呢。在这个field里真
正让代谢又火起来的个人看来是三个topic: PKM2, IDH1/2, Lkb1/mTor/AMPK。
尤其是Lewis Canteley 2008 Pkm2的nautre,让人们知道了cancer cell是如何建立
Warbug
effect的,这之后各种可能和warburg effect相关的pathway又被人们陆续挖掘了出来
。而通过对PKM2/LDHB等glycolysis相关酶的knockdown, tumor cell的生长... 阅读全帖 |
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w*******y 发帖数: 60932 | 37 TigerDirect has the CyberPower 750W Surge Suppressor for $6.99 shipped. No
tax for most. 750 Watts, 1250 Joule Rating, 7 Outlets, RJ-11 Modem Ports,
90 degree plug, 6' cord, Lifetime Unlimited Connected Equipment Warranty.
Link:
|
|
w*******y 发帖数: 60932 | 38 Includes an a hard shell Plano ProMax Single Scoped Rifle case, 1 30rd
magazine, sling and operators manual.
Receiver has the Armalite lion, M15A4 and a USXXXXXX serial number. No
restricted or LE markings.
Link:
http://dsgarms.com/ProductInfo/ARM15A4CB.aspx
Specs:
5.56/.223 caliber
NATO 5.56 chamber
16" chrome lined - chrome-moly-vanadium barrel
Extended feed ramps
1:9 twist
Retractable SOCOM style buttstock
A2 flash suppressor
A4 flattop upper receiver and gas block
|
|
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w*******y 发帖数: 60932 | 40 Source: Link:
http://www.slickguns.com/product/used-ruger-mini-14-223-blue-39999-48999
CDNN Investments offers 3 different Ruger Mini 14 .223 in blue for $399.99,
Stainless for $439.99 and Stainless GB for 489.99. You will have to CALL 800
-588-9500 TO ORDER. Their website is not set up to accept orders on firearms
. Rugers Mini 14 Ranch and Mini 14 Tactical autoloading rifles include a
Garand style breech bolt locking system with a fixed pistol gas system and
self cleaning moving gas cylinder. ... 阅读全帖 |
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w*******y 发帖数: 60932 | 41 A great price on an AK-47 !!
Link:
http://www.southernohiogun.com/ak-47-romanian-folding-stock-762x39.html
Price: $349.99
Description:
AK-47 Romanian Folding Stock 7.62X39 for $349.95 offered by Southern Ohio
Gun Internationa l Inc. Romanian AK-47 with synthetic folding stock,
bayonet, slant flash suppressor, and two (2) 30Rd magazines.
SKU AK-RFOLD
Dealer License Required FFL Purchase Only
California Sales Not for Sale in California
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w*******y 发帖数: 60932 | 42 Larry's Pistol and Pawn in Huntsville, AL is having a December Sale
Used Glock 22 with 15 round mag
or
Used Glock 23 with 13 round mag
are $333.33 (1 per customer)
Used H&K USP .40 cal is $444.44 ($902 new)
Variety of Bushmaster ARs and ACRs (all .223 caliber)
Bushmaster A3 (models with 11" barrel, extended flash suppressor; 14" barrel
with izzy break; std 16" barrel) are $799.99
Gas Piston Bushmaster ARs are $999.99 (retail $2000)
Bushmaster ACR (adaptive combat rifle, with gas piston syst... 阅读全帖 |
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w*******y 发帖数: 60932 | 44 FeaturesManufacturer Monster Cable Products, Inc
Manufacturer Part Number 109358
Power Cord/Cable 8 ft
Dimensions 2" Height x 11.5" Width x 4" Depth
Receptacles 8
Product Name PowerCentre HTS 850 8 Outlets Surge Suppressor
Weight 1 oz
Dataline Protection RJ-11 Phone
Dataline Protection Coaxial Cable Line
Linky:
http://cgi.ebay.com/Monster-PowerCenter-8-Outlet-Surge-Protecto
#ht_2630wt_1189" rel="nofollow" target="_blank" onclick="_gaq.push(['_
trackEvent', 'thread', 'click', '2653779 - ebay-dail... 阅读全帖 |
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w*******y 发帖数: 60932 | 47 Pre-Order Battlefield 3 from three different retailers to receive various
special bonus content
Origin - Link:
http://store.origin.com/store/ea/html/pbPage.battlefield3_US_LE
Will grant you exclusive early access to the BF3 Beta in September. In
addition to the Back to Karkand expansion pack, you will also receive the
Physical Warfare pack which gives you day-one unlocks on the DAO-12 shotgun
and Type-88 LMG as well as flash suppressor and flechette ammo
customizations. On top of that, you get... 阅读全帖 |
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w*******y 发帖数: 60932 | 50 The annual "12 days of Armalite" has begun.
Complete upper half for $399 -
Link:
http://www.armalite.com/ItemForm.aspx?item=UE0446B&ReturnUrl=Ca
Each ArmaLite Complete Upper Assembly includes a forged upper receiver
assembly, barrel assembly, bolt carrier group and charging handle assembly.
All complete upper assemblies are test fired as complete rifles before
shipping.
Caliber: .223/5.56
Barrel: 16" Chrome Moly with M203 Step Down
Rifling Twist: 1:9 RH
Muzzle Device: Flash Suppressor
Front Sigh... 阅读全帖 |
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