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Saturday, April 10, 2010

A MULTI-TARGET APPROACH TO 'SYSTEMIC' DRUG----RAJESH S. GOKHALE

BIOLOGY BEYOND BORDERS

PARADIGM OF TB INFECTION: CAUSE INFECTION IN MANY BUT ACTIVE DISEASE IN FEW.

DYNAMIC INTERPLAY OF HOST AND PATHOGEN INTERACTIONS

SATGES OF TUBERCULOSIS INFECTION:

BUG TAKENS UP BY ALVEOLAR MACROPHAGES > PREVENTION OF PAHAGO-LYSOSOMES FROMATION AND RAPID BACTERIAL MULTIPLICATION > RELEASE OF CHEMOTACTIC SIGNALS

PROGRESSION OF GRANULOMA TO ACTIVE TUBERCULOSIS

Low-Cost Automation of Sputum Smear Analysis by Imaging Cytometry------Pavak shah

Smear Microscopy Advantages: Low Cost

Low-Cost imaging: low-magnification; LED excitation; CMOS camera sensor; fixed focus, fixed-stage; Smear analysis automation

Advantages: Low-cost; potential high sensitivity

Image Analysis: many possibilities, simplest approach: segment image by intensity threshold; more sophisticated strategy: shape space classifier

Why imaging cytometry?
low-cost, low-power; portable, easily ruggedized, temperature stable reagents, increses testing throughput.

Continued and future development: software- image analysis optimization

TB POC test------martin casenghi

TB diagnosis, closest POC test: Sputum smear microsope

TAG: Treatment Action Group

Medical needs priorities

The TB POC test Challenge: Ag and /or Ab detection, funding gap.

Alternative funding mechanism -TB diagnostic prize fund?

Glycomics---- Sulagana Banerjee

Glycosylation

carbohydrate interactions in a cell.

Why glycans?

Glycans: potential drug targets for drugs, vaccine candidates, enzymes processing glycans catalyze steps in growth, proliferation and infection diseases.

Through th Looking Glass--

Glycome in infection development: microbial adhesion > host penetration > host damage

Glycosysltion present in both prokaryotes and eukaryotes

Two types of glycans: N-Glycans and O-Glycans

Key components for targeting glycome: enzymes responsible for makin glycoconjugate; protein responsible for making cell surface.

Challenges for annotatinng the Mtb glycome: not much available literature.

Organisation of Glycome in Mtb:

Re-annotating Mtb using the power of collaboration

Search for homologues of glycans

Function prediction of unknown proteins

Pathway Modelling and Curationusing CellDesigner + Payao --Yukiko

CellDesigner

How to Build Pathway?

species (nodes)
reaction
litreature

Model Representation <> Modelling tools <> Databases

SBML (Systems Biology Markup Language)
SBGN (Systems Biology Graphical Notation):

MAPK pathway

SBML <> SBGN

Read SBML file, add graphical notation, stored in CD annotation

Database Connection

Annotation:
Notes: model, species, protein/RNA/DNA;
MIRIAM;
Layer text

Simulation: via control panel; via SBW menu

SBW= systems biology workbench

SBML features and supporting tools

Models For Simulation

Plugin Development

Model Curation

Pathway Modelling Case Study

Mapathon: 15 members: ERATO wet lab virologists/biologists etc.
read 60 papers

Payao: community base pathway enrichment paltform

Public> Map> Community A

Friday, April 9, 2010

COMPUTATIONAL SYSTEMS BIOLOGY- Tools & aPPLICATION-Samik Ghosh (The System Biology Institute)

PART I

PATHWAY CURATION TOOLS AND APPLICATION

Complexity: Guess which body was not designed to stand turbulence?

Post genomic era has opened up huge database cataloguing the molecular parts of biological systems; Comprehansive knowledge of isolated systems available 'in vitro' and in vivo; Comprehanding paradigm shift

Computational Approach:

Model-Modify-Mine-Measure

Biological Modelling and simulation:

Body waeight> Tissue/cells > Protein > Genes (Top-Down: increasing complexity but Bottom-Up: increasing abstraction)

System biology Approach: network model construction (clinical data, animal models, biologicalliterature); network property analysis (pathway length distribution, node centrality distribution, network degree distribution); high granularity pathway dynamic modelling (celldesigner.org)

Computational Platform:

GN (graphical notation), SBML, CellDesigner.org, CellDesigner Applet, Public Donation Database




PART II

Mtb Mappathon
System Biology

whole > sum of its part

What system biology not... NOT a black office, NOT a Spherical Cow',

A matter of sacle- physics, chemistry , biology

A Fundamental Difference-- physics, chemistry= predictive, but, biology= observational

Making biology a predictive science

why do we need computational modelling?

A new way of drug design- system focus<- target focus<- legend focus Reconstruction of Metabolic Networks Practice of systems biology Stoichiometric Analysis- capture the structure of metabolic network, does not require quntitative kinetic parameters, FBA (Flux balance analysis) Work Flow of FBA -- Development of pathway model-> computation of stoichiometric matrix-> FBA-->in silico gene deletions-> drug perturbations-> identification of protein essential to pathway-> Drug target

Mycolic Acid Biosynthesis Pathway

Reactome Modelling -- Pathway Modelling (FBA), Network Modelling

Reaction Networks: Comparative Analysis

targetTB: Target Identification Pipeline

Network Analysis- Node deletions: change in netwok parameters; Lethal Deletions

Interactome Construction

Structure Analysis

PocketDepth: Binding pocket detection

PocketMatch- A new algorithm for Binding site comparison

Protein-Protein Influence Matrix: identify maximally connected code; Preliminary analysis shows hub involvement.

High Order Interactions: Pathway-Pathway; Process-Process

Pathways to Drug Resistant

Model Summary: model construction from litreature, Boolean construction, 75 nodes are present.

State MAP for simulations

MAP of single & double knock-outs

work flow- host pathogen modelling: advantage of modelling- bird's eye view for host-pathogen interplay

Genomics-> Proteomics-> System Biology

MANAGING AND ANNOTATING M.Tb DATA USING DrugPedia AND MycoTB---G.P.S. Raghava

`INTRODUCTION

IN SILICO APPROACH

- SEARCHING POTENTIAL DRUG TARGETS, DESIGNING EFFECTIVE INHIBITORS, MANAGING AND ANNOTATING M. TUBERCULOSIS DATA

INVOLVEMENT OF PUBLIC AGAINST WAR

- OSDD IS A PLATFORM, C2DIS A EXPERIMENT TO INVOLVE STUDENTS, EFFECT USE OF PUBLIC IS CHALLENGE.

MANAGING AND SHARING OF DATA

-TRADITIONAL DBMS ARE RIGID, ANNOTATING PROBLEM IS NOT DEFINED PRBLEM, NEED OF FLEXIBLE DBMS (MycoTB)
DrugPedia PLATFORM FOR SHARING DATA.

CRDD: COMPUTATIONAL RESOURCE FOR DRUG DISCOVERY

C2D: ANNOTATING OF M.Tb PROTEOME FROM IMMUNOLOGICAL ANGLE

DrugPedia:

MycoTB: AN OPEN SOURCE SOFTWARE FOR MANAGING M. TUBERCULOSIS DATA

INDIA 800 FOUNDATION--

BUILDING ONE INDIA

INDIA HAS MADE HUGE ECONOMIC PROGRESS. HOWEVER THE NATURE OF THIS PROGRESS MASKS HUGE DISPARITIES IN DEVELOPMENT THAT MUST BE ADDRESSED.

WE LIVE IN A UN-PRECEDENTED,CONTRADISPLINARY ERA WHERE HUNGERS SOARS AMID RECORD HARVESTS; AND EXTREME POVERTY AND WEALTH EXIST ALONGSIDE ONE ANOTHER.

THE GREATEST CHALLENGE IS TO ERADICATE POVERTY AND STIMULATE SOCIAL JUSTICE.

THE GOVERNMENT HAS TO TAKE THE LEAD BY DEVELOPING AND INVESTING IN RURAL DEVELOPMENT. AGRICULTURE, EDUCATION AND HEALTH. INDIA800 AND CIVIC SOCIETY ORGANISATIONS HAVE KEY ROLE TO PLAY IN SHARING THEIR UNDERSTANDING OF WHAT WORKS AND WHAT DOES NOT.

THIS CAN ASSIST IN DEVELOPING INNOVATIVE SOLUTIONS, AND DELEIVERING KEY PROGRAMMES THAT ENSURE INCLUSIVITY.

SLX- ENABILING COLLABORATORIES--KRITHI NEELAKANTAN

The best talent lies outside of your organisation - Bill Joy (co-founder , sun)

Remember CPC? (collaborative product component)

shifthappens- Netcafe's law (as more people collaborate more robust task can easily be done with ease)

The Network is the Platform!

Social Networking

New Business Challenges: new workforce behaviour services> new communities> new expectations.

Rise of the Social Cysborg

Bottom line of social software: workforce productivity- transfer knowledge between & among workers- capture knowledge of exsting workers- employee engagement.

organisations are investing based on real, tangible returns.

Online Video has had a Particularly Strong Impact (e.g. youtube)

Sharing & Privacy Controls: channels-target content for a specific group of users
Privacy controls-

SLX evolution to address outcomes:
increase sales & marketing effectiveness; improve employee collaboration; deliver effective corporate communications; enhance training & learning


learning & KM+ HPC Services+data content repositories-- Services----- service creation tools-- common monitoring & management

Journal of Visualised Experiments

COLLABORATIVE SCIENCE- JAIJIT BHATTACHARYYA

WHAT MACHINES DO?
WHAT NEXT GENERATION MACHINE DO?
SO, HOW DO YOU HARNESS MULTIPLE BRAIN POWER?
HOW WE DO CREATE SUPERBRAIN
TECHNOLOGY-WEB2.0
-PUBLIC HIGH PERFORMANCE COMPUTING -CLOUD - DIGITAL LIBRARIES-OPEN FORMATS

OpenCirrus

COLLABORATIVE INNOVATION FRAMEWORK
OPEN CONTENT-OPEN SOURCE (ACCESS TO DATA & CODE)-OPEN STANDARDS (ABILITY TO COLLABORATE)

PRINCIPLES OF MASSIVELY COLLABORATIVE SCIENCE:
COLLABORATION-COMMUNITY-SHARED OWNERSHIP OF KNOWLEDGE
PARADIGM SHIFT IN KNOWLEDGE CREATION:

INTELLECTUAL "PROPERTY"-

COLLABORATIVE SCIENCE-SHARE,COLLABORATE; COMMUNITY OWNED, ACCESSIBLE TO ALL; MODIFICATION ENCOURAGED

COLLABORATIVE DEVELOPMENT IN SOFTWARE

PATENT POLICIES: OPEN ACCESS TO PUBLIC FUNDED RESEARCH; OPEN ACCESS TO DATA; OPEN OPPURTUNITIES; COLLABORATIVE USAGE OF NON-DIGITED INFORMATION.

ECONOMIC IMPACT OF OPEN SOURCE SOFTWARE (i.e IT MEANS MANY THINGS).

Hiroaki Kitano & OSDD C2D Tuberculosis

Teen Murti Bhawan

01:02:00 PM

Map: the view of world

Google Map

EGF Receptor Cascade

Garuda Project (Vishnu ride)

oncology, CNS, Cardio, Infection- Garuda common Platform

Cell Designer-modelling tool

PAYAO: SBML Models Tagging System

Community Curation Platform- How to maintain Map?

Pathway Curation Suite-

why drug discovery is difficult?

Multiple genes cause many diseases.

Internet Router Topology - Human PPI

Robustness includes Homeostasis & Stability but not equal

Complete Robust System- cancer robustness-source of robustness-feedback loop within cell-

Intra Tumor Heterogeneity

Robustness Trade-offs

Robustness - Fragility

Bode Theorem

Collateral Sensitivity: Fragility Vs Resistance.

The conjecture- reduce cost & efficacy & sensitivity when two combination s of drug turn to cure other disease.

Open Pharma

Robustness - based target candidate selection, differential robustness

current question- which genes are over-expresing/mutant /missing in tumor cells?

computational fluid dynamics- big sucess-homogeous system

large network map-dynamic model construction- mechanism of AKT effect

the era of new drug design- what are problems, what need to be done, how to do it, we are crazy to mad the solution

Thursday, April 8, 2010

Conference: Day 1

TEEN MURTI BHAVAN

Time: 10:40:42 AM

OSDD-CONNECT2DECODE

Discussing about Tuberculosis:

Welcome note & History of Tuberculosis by Zakir Thomas.

How, Where & When about OSDD Tuberculosis Initaitive: S.K. Brahmachari

Inauguration note: Hon. Prithviraj Chauhan,
Minister of State

"New Mind" make big things happen.