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== '''Welcome to the Computational Genomics Lab''' ==  
== '''Computational Epigenomics and Transcriptomics Lab (PI: Wei Li)''' ==  


[http://www.bcm.edu/cancercenter/ Dan L. Duncan Cancer Center], [http://www.bcm.edu/mcb/index.html Department of Molecular and Cellular Biology], [http://www.bcm.edu/ Baylor College of Medicine]
[http://www.bcm.edu/cancercenter/ Dan L. Duncan Cancer Center], [http://www.bcm.edu/mcb/index.html Department of Molecular and Cellular Biology], [http://www.bcm.edu/ Baylor College of Medicine]
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==Recent News==
==Recent News==
. 12/2010:  Liguo's fly RNA-seq paper has been published in  '''Genome Research'''.
. 06/2014:  Deqiang's Dnmt3a/3b double KO paper (with the Goodell Lab) is accepted to '''Cell Stem Cell '''.
 
. 06/2014:  Zheng's alternative splicing paper (with the Cooper Lab) is accepted to '''Molecular Cell '''.
 
. 04/2014:  Liguo's ChIP-exo methodology paper (MACE) is accepted in principle in '''Nucleic Acids Research'''.
 
. 02/2014: DQ and HJ's HSC LncRNA paper (with the Goodell Lab) is in revision in '''Cell Stem Cell'''.
 
. 02/2014:  Zheng's collaborative work on alternative splicing in heart development is accepted to '''Nature Communications'''.
 
. 02/2014:  Zheng's brain tumor 3'UTR regulator paper is accepted to '''Nature'''. This paper was initially rejected after review twice. We appealed twice with success and finally made it in the 3rd submission.
 
. 02/2014:  Welcome our new postdoc Jianzhong Su and graduate student Xueqiu Lin.


. 10/2010A Texas '''CPRIT grant''' has been funded. We will work with Dr. Goodell at BCM to understand DNA Methylgransferase 3B in normal and malignant hematopoiesis.  
. 02/2014Deqiang's mouse HSC Aging Epigenomics paper is accepted in principle to '''Cell Stem Cell'''.


. 08/2010Our '''Pilot Project''' has been funded by a NIH Stem Cell P01 Grant.  
. 01/2014Deqiang's Methodology paper for the detection of differential DNA Methylation (MOABS) is accepted to '''Genome Biology'''.


. 07/2010The DNA methylation platform comparision paper has been accepted to '''Nature Biotechnology'''.
. 01/2014Our collaborative work on Breast Cancer Epigenetics is accepted to '''Science Translational Medicine'''.


. 06/2010: Hao Zhao will join us as a '''postdoc fellow'''. Hao has a PhD in Computer Science from City University of Hong Kong. Welcome!
. 01/2014: Yuanxin and Zheng's ZM11 paper with Xiaobing Shi lab in MD Anderson is accepted to '''Nature'''. This work links transcription elongation to tumor suppression.


. 05/2010: Our paper titled "Histone modifications and chromatin organization in prostate cancer" has been accepted by '''Epigenomics'''.
. 12/2013: Kaifu's aging nucleosome paper is accepted to ''' Genes & Development'''  


. 01/2010: A Texas '''CPRIT grant''' has been funded. We will use ChIP-seq and RNA-seq to analyze Androgen Receptor (AR) function in Prostate Cancer with Dr. Weigel at BCM.
. 12/2013: We received a 5-year NIH/NHGRI '''R01''' grant (scored at 6 percentile in its first submission) to study DNA Methylation


. 01/2010: A '''CPRIT multi-investigator planning award''' has been funded. This project will bring together a "dream team" in epigenetics research.  We will direct the bioinformatics component for LONESTAR.
. 11/2013: Wei will serve on the Editorial Board of '''Molecular Endocrinology'''


. 01/2010Wei Li is an invited speaker in the American Association for Cancer Research (AACR) Special '''Conference on Cancer Epigenetics''' at Puerto Rico.
. 09/2013Deqiang's DNA methylation Canyon paper is accepted to '''Nature Genetics'''.


. 12/24/2009Dr.Bert O'Malley's SRC-3 ChIP-seq paper has been accepted by '''Molecular Endocrinology'''. Liguo and Wei are co-authors on the paper.
. 09/2013Xueqiu's bisulfite sequencing quality control paper (BSeQC) is accepted to '''Bioinformatics'''.


. 12/08/2009Liguo's RNA-seq methodology paper has been accepted by '''PLoS ONE'''. Congratulations Liguo!
. 08/2013Kadir's p53 paper is accepted to '''Nucleic Acids Research'''


. 11/13/2009Wei Li received a '''New Investigator Award''' from the Department of Defense (DOD) Prostate Cancer Research Program (PCRP). Cheers!
. 06/2013Zheng's TCGA RNA-seq bioinformatics paper is under review in '''Nature Biotechnology'''.


. 11/07/2009: Wei Li gave a '''Keynote Presentation''' at the Symposium on Advances in Cell Signaling, Cancer Prevention and Therapy at South Padre Island, Texas.
. 01/2013:  [http://www.bcm.edu/news/item.cfm?newsID=6723 BCM News] and  [http://epigenie.com/danpos-reveals-dynamic-nucleosomes Epigenie Headline] about our recent work on nucleosome dynamics.


. 09/29/2009A prestigious '''NIH Challenge grant''' has been funded. We will use ChIP-seq to analyze RXRa binding in mouse liver with Dr. Karpen at Texas Children's Hospital.
. 12/2012Liguo and HJ's CPAT RNA coding potential prediction paper is accepted to '''Nucleic Acids Research'''.


. 09/17/2009A two-year $2.5 million '''NIH Grand Opportunity (GO) grant''' has been funded. We will study aging epigenomics with Drs. Darlington and Goodell at BCM.
. 11/2012Kaifu's nucleosome methodology paper DANPOS is accepted to '''Genome Research'''.


. 09/15/2009A prestigious '''NIH Challenge grant''' has been funded. We will use RNA-seq to characterize patient cardiac progenitors with Dr. Pu at Harvard Medical School.
. 10/2012Kaifu's promoter nucleosome paper is accepted to '''Genome Research'''.


. 06/05/2009Yuanxin's Bisulfite Sequence Mapping paper has been accepted by '''BMC Bioinformatics'''. Congratulations Yuanxin!
. 09/2012A '''NIH R01 grant''' was funded. We will work with Dr. Issa at Temple Univ. to understand DNA methylation in Cancer.


. 03/26/2009: Wei's paper titled 'Reprogrammed Androgen Receptor Function in Androgen-Independent Prostate Cancer' has been accepted by '''Cell'''.
. 08/2012: A mouse ES nucleosome paper from Kaestner lab at Upenn is accepted to '''Cell'''. Kaifu and Wei used DANPOS to analyze the data and were listed as co-authors.


. 08/2012: Dr. Benjamin Rodriguez will join us as a '''Postdoc Associate'''. Ben has PhD in Integrated Biomedical Science from the Ohio State Univ. Welcome!


. 08/2012:  A '''Mazzone Award ''' is funded. We will work with Dr. Balk at Harvard Medical School to understand the molecular features of aggressive prostate cancer.
. 06/2012: Liguo's RNA-seq Quality Control paper is accepted to '''Bioinformatics'''.
. 06/2012:  A '''NIH R01 grant''' is funded. We will work with Dr. Goodell at BCM to understand DNA methylation in Hematopoietic Stem Cell.
. 04/2012:  A '''NIH R01 grant''' is funded. We will work with Dr. Dent at MD Anderson to define USP22 functions during mammalian development.
. 04/2012:  Dr.Dean Tang's prostate cancer stem cell paper is accepted in '''Cell Stem Cell'''. Wei is a co-author.
. 02/2012:  Yuanxin's epigenetic paper with Katrin Chua lab at Stanford is accepted to '''Nature'''. Two years of hard work finally paid off!
. 02/2012:  Liguo Wang is offered a '''tenure-track Assistant Professor''' position at Mayo Clinic. Congratulations!
. 02/2012:  Justin Park will join us as a Postdoc Associate. Justin will graduate in May with a PhD in Computer Science from Rice University. Welcome!
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[http://openwetware.org/wiki/Li_Lab:news News Archive]
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== '''A Genomic View of Epigenetic and Transcriptional Regulation''' ==
Our lab is focused on the design and application of bioinformatics algorithms to elucidate global epigenetic mechanisms and transcription dynamics in normal development and diseases such as cancer. Since establishing the lab in early 2008, we have published more than 50 peer-reviewed papers in high profile journals, such as Nature, Cell, Nature Genetics, Molecular Cell, Genome Research, Genome Biology, Genes and Development, Nucleic Acids Research, Cancer Research, PNAS and Bioinformatics.
 
We developed a number of widely used algorithms to analyze next generation sequencing data from Chromatin Factor ChIP-seq (MACS, MACE, DyChIPS), DNA Methylation Bisulfite-seq (BSMAP/RRBSMAP, BSeQC, MOABS), Nucleosome Positioning MNase-seq (DANPOS), and RNA-seq (CPAT, RSeQC, DaPars). These algorithms have been broadly adopted by thousands of academic users. For example, the MACS algorithm has gathered >1000 citations since 2008.


In collaboration with experimental biologists, we used these algorithms to gain novel biological insights from various biological processes and disease models.


Our lab is focused on the design and application of statistical and computational algorithms to elucidate global epigenetic and transcriptional regulatory mechanism, by interpreting and integrating data from ChIP-chip/seq, DNA methylation, Nucleosome positioning, Alternative splicing and Motif finding.
* Chromatin Factors: ER in breast cancer, AR in prostate cancer, FoxA1 pioneer factor, Atoh1 in neuron development, NSD2 in oncogenic programming, SIRT7 in cancer transformation, ZM11 in transcription elongation, and p53 in ES differentiation.


An elaborate system of epigenetic and transcription regulation is responsible for the morphological and behavioral complexity in higher eukaryotes. This regulatory system consists of diverse trans-acting protein factors, cis-acting regulatory DNA sequences and the underlying epigenomic background, such as histone modifications, DNA methylation and Nucleosome localizations. Recently, Chromatin ImmunoPrecipitation coupled with whole genome tiled microarray (ChIP-chip) and/or next-generation sequencing (Solexa, SOLiD and 454) has evolved as a powerful and unbiased technique to study this genome-wide regulatory system. The application of this technology to multiple factors and/or in multiple conditions allows biologists to study how transcription is differentially regulated in a combinatorial manner. However, it also poses great challenges for the development of effective algorithms, the key link between massive raw data and biological hypotheses.
* DNA Methylation: Dnmt3a in HSC differentiation, DNA methylation Canyon, HSC aging.  


We developed a series of algorithms to reliably detect and annotate ChIP-enriched regions using Next-generation sequencing (MACS; Genome Biology 2008) and Affymetrix whole-genome tiling arrays, including 1) Model-based Analysis of Tiling-arrays (MAT; PNAS 2006) and a hidden Markov model (Bioinformatics 2005) for ChIP-region detection, 2) extreme MApping of OligoNucleotide (xMAN; BMC Genomics 2008) for microarray probe mapping, 3) Cis-regulatory Element Annotation System (CEAS; NAR 2006) for ChIP-region annotation. Since the inception in early 2006, they have been adopted by hundreds of academic users and are now considered as the ChIP-chip data analysis standard in many labs.  We worked with ENCODE consortium to systematically analyze the performance variability introduced in ChIP-chip protocols, array platforms, and analysis methods (Genome Res. 2008). Furthermore, we are also in close collaboration with several labs on identifying global regulation targets of several key transcription factors, including Estrogen Receptor (Cell 2005; Nature Genetics 2006); Androgen Receptor (Molecular Cell 2007; Cell 2009) and FoxA1 (Cell 2008).
* Nucleosome Organization: fragile nucleosome in gene poising, promoter nucleosome with Tup1, nucleosome dynamics in ES differentiation, global nucleosome loss in aging.


We are currently collaborating with many BCM laboratories to use the Next generation sequencing to study 1) Transcription factor binding and histone modifications (ChIP-seq); 2) DNA methylation at single nucleotide resolution (Bisulfite-seq); 3) Nucleosome remodeling (Mnase-seq); 4) Alternative splicing (RNA-seq).  My laboratory also plays an important role in the BCM Epigenomics Data Analysis and Coordination Center for a five-year [http://nihroadmap.nih.gov/epigenomics/referenceepigenomeconsortium.asp NIH Roadmap Epigenomics Program].  
* Transcriptome: chimeric RNA in prostate cancer,  Long non-coding RNA in HSC, 3’UTR deletion in cancer and their master regulators.


[http://sites.google.com/a/bcm.edu/lilab/ Lab Intranet]
[http://sites.google.com/a/bcm.edu/lilab/ Lab Intranet]
[http://openwetware.org/wiki/Li_Lab openwetware]
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Revision as of 14:37, 13 June 2014

Home        People        Publications        Collaborations        Software        Positions        Contact       


Recent News

. 06/2014: Deqiang's Dnmt3a/3b double KO paper (with the Goodell Lab) is accepted to Cell Stem Cell .

. 06/2014: Zheng's alternative splicing paper (with the Cooper Lab) is accepted to Molecular Cell .

. 04/2014: Liguo's ChIP-exo methodology paper (MACE) is accepted in principle in Nucleic Acids Research.

. 02/2014: DQ and HJ's HSC LncRNA paper (with the Goodell Lab) is in revision in Cell Stem Cell.

. 02/2014: Zheng's collaborative work on alternative splicing in heart development is accepted to Nature Communications.

. 02/2014: Zheng's brain tumor 3'UTR regulator paper is accepted to Nature. This paper was initially rejected after review twice. We appealed twice with success and finally made it in the 3rd submission.

. 02/2014: Welcome our new postdoc Jianzhong Su and graduate student Xueqiu Lin.

. 02/2014: Deqiang's mouse HSC Aging Epigenomics paper is accepted in principle to Cell Stem Cell.

. 01/2014: Deqiang's Methodology paper for the detection of differential DNA Methylation (MOABS) is accepted to Genome Biology.

. 01/2014: Our collaborative work on Breast Cancer Epigenetics is accepted to Science Translational Medicine.

. 01/2014: Yuanxin and Zheng's ZM11 paper with Xiaobing Shi lab in MD Anderson is accepted to Nature. This work links transcription elongation to tumor suppression.

. 12/2013: Kaifu's aging nucleosome paper is accepted to Genes & Development

. 12/2013: We received a 5-year NIH/NHGRI R01 grant (scored at 6 percentile in its first submission) to study DNA Methylation

. 11/2013: Wei will serve on the Editorial Board of Molecular Endocrinology

. 09/2013: Deqiang's DNA methylation Canyon paper is accepted to Nature Genetics.

. 09/2013: Xueqiu's bisulfite sequencing quality control paper (BSeQC) is accepted to Bioinformatics.

. 08/2013: Kadir's p53 paper is accepted to Nucleic Acids Research

. 06/2013: Zheng's TCGA RNA-seq bioinformatics paper is under review in Nature Biotechnology.

. 01/2013: BCM News and Epigenie Headline about our recent work on nucleosome dynamics.

. 12/2012: Liguo and HJ's CPAT RNA coding potential prediction paper is accepted to Nucleic Acids Research.

. 11/2012: Kaifu's nucleosome methodology paper DANPOS is accepted to Genome Research.

. 10/2012: Kaifu's promoter nucleosome paper is accepted to Genome Research.

. 09/2012: A NIH R01 grant was funded. We will work with Dr. Issa at Temple Univ. to understand DNA methylation in Cancer.

. 08/2012: A mouse ES nucleosome paper from Kaestner lab at Upenn is accepted to Cell. Kaifu and Wei used DANPOS to analyze the data and were listed as co-authors.

. 08/2012: Dr. Benjamin Rodriguez will join us as a Postdoc Associate. Ben has PhD in Integrated Biomedical Science from the Ohio State Univ. Welcome!

. 08/2012: A Mazzone Award is funded. We will work with Dr. Balk at Harvard Medical School to understand the molecular features of aggressive prostate cancer.

. 06/2012: Liguo's RNA-seq Quality Control paper is accepted to Bioinformatics.

. 06/2012: A NIH R01 grant is funded. We will work with Dr. Goodell at BCM to understand DNA methylation in Hematopoietic Stem Cell.

. 04/2012: A NIH R01 grant is funded. We will work with Dr. Dent at MD Anderson to define USP22 functions during mammalian development.

. 04/2012: Dr.Dean Tang's prostate cancer stem cell paper is accepted in Cell Stem Cell. Wei is a co-author.

. 02/2012: Yuanxin's epigenetic paper with Katrin Chua lab at Stanford is accepted to Nature. Two years of hard work finally paid off!

. 02/2012: Liguo Wang is offered a tenure-track Assistant Professor position at Mayo Clinic. Congratulations!

. 02/2012: Justin Park will join us as a Postdoc Associate. Justin will graduate in May with a PhD in Computer Science from Rice University. Welcome!

News Archive




Our lab is focused on the design and application of bioinformatics algorithms to elucidate global epigenetic mechanisms and transcription dynamics in normal development and diseases such as cancer. Since establishing the lab in early 2008, we have published more than 50 peer-reviewed papers in high profile journals, such as Nature, Cell, Nature Genetics, Molecular Cell, Genome Research, Genome Biology, Genes and Development, Nucleic Acids Research, Cancer Research, PNAS and Bioinformatics.

We developed a number of widely used algorithms to analyze next generation sequencing data from Chromatin Factor ChIP-seq (MACS, MACE, DyChIPS), DNA Methylation Bisulfite-seq (BSMAP/RRBSMAP, BSeQC, MOABS), Nucleosome Positioning MNase-seq (DANPOS), and RNA-seq (CPAT, RSeQC, DaPars). These algorithms have been broadly adopted by thousands of academic users. For example, the MACS algorithm has gathered >1000 citations since 2008.

In collaboration with experimental biologists, we used these algorithms to gain novel biological insights from various biological processes and disease models.

  • Chromatin Factors: ER in breast cancer, AR in prostate cancer, FoxA1 pioneer factor, Atoh1 in neuron development, NSD2 in oncogenic programming, SIRT7 in cancer transformation, ZM11 in transcription elongation, and p53 in ES differentiation.
  • DNA Methylation: Dnmt3a in HSC differentiation, DNA methylation Canyon, HSC aging.
  • Nucleosome Organization: fragile nucleosome in gene poising, promoter nucleosome with Tup1, nucleosome dynamics in ES differentiation, global nucleosome loss in aging.
  • Transcriptome: chimeric RNA in prostate cancer, Long non-coding RNA in HSC, 3’UTR deletion in cancer and their master regulators.


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