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• Case studies 2DE: • Drug treatment in malaria parasite • Plasma proteome analysis of SARS • An overview of DIGE technique • Case study DIGE: • Serum proteome analysis of prostate cancer

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Dr.  Sanjeeva  Srivastava   IIT  Bombay  

IIT Bombay Proteomics Course NPTEL

•  Case studies 2DE:

•  Drug treatment in malaria parasite

•  Plasma proteome analysis of SARS

•  An overview of DIGE technique

•  Case study DIGE:

•  Serum proteome analysis of prostate cancer

2  

(2)

IIT Bombay Proteomics Course NPTEL

Makanga et al. Towards a proteomic definition of CoArtem action in Plasmodium falciparum malaria.

Proteomics. 2005, 5, 1849

Case study-1

IIT Bombay Proteomics Course NPTEL

•  CoArtem is a combination of artemisinin- derivative artemether with lumefantrine

•  Drug of choice for all cases of non-severe malaria worldwide

•  Artemisinin drug action is mediated specifically through its endoperoxide moiety

4  

(3)

IIT Bombay

5  

Proteomics Course NPTEL

Plasmodium falciparum Proteome

IIT Bombay

6  

Proteomics Course NPTEL

Plasmodium falciparum

Late ring stage of Plasmodium

falciparum

Microscopic field showing Pf in its late

ring stage in the synchronised culture

Log

Lag Phase

Log Phase

Death Phase Stationary Phase

Time

Culture of late

ring stage pf

(4)

IIT Bombay

7  

Proteomics Course NPTEL

Fractionation of the P. falciparum proteome

Synchronised parasites isolated from host erythrocytes Washed and solubilized in a Tris buffer

Tris-insoluble fraction was subjected to two further extractions in urea based lysis buffers

IIT Bombay

8  

Proteomics Course NPTEL

Protein bands after staining

_

+

Sample wells

Buffe r

Gel

Glass/

Plastic plates

Protein Samples loaded

into sample wells

(5)

IIT Bombay

9  

Proteomics Course NPTEL

CoArtem = Lumifantrine + Artemether

Reaction with Late ring stage of Plasmodium falciparum

Glycolytic Enzymes

Alterations in Parasite Proteome

IIT Bombay

10  

Proteomics Course NPTEL

Artemether   Lumefantrine  

Membrane associated calcium binding protein

Aspartic proteinase (HAP) HSP60, 70, 90

Enolase

Fructose biphosphate aldolase Phophoglycerate kinase

D  

U  

U   U  

U   U  

U   U  

D   U  

D   U  

(6)

IIT Bombay

11  

Proteomics Course NPTEL

Stress Response

Proteins

ARM LUM

Upregulated Downregulated

Glycolytic Enzymes

ARM LUM

IIT Bombay

12  

Proteomics Course NPTEL

•  Investigation of alterations to the parasites proteome induced by the two components of CoArtem,

artemether and lumefantrine

•  Established relationship between pharmacologically

relevant concentration and time of exposure for the

two components of CoArtem

(7)

IIT Bombay Proteomics Course NPTEL

Chen et al. Plasma proteome of severe acute respiratory syndrome analyzed by two-dimensional gel electrophoresis and

mass spectrometry. Proc Natl Acad Sci USA. 2004, 101, 17039

Case study-2

IIT Bombay

14  

Proteomics Course NPTEL

•  Plasma proteome analysis of severe acute respiratory syndrome (SARS)

•  Technique: 2DE and Mass Spectrometry

(8)

IIT Bombay

15  

Proteomics Course NPTEL

Respiratory Disease

Droplets of saliva or mucus infected with

SARS virus

Membrane Glycoprotein

(M)

Nucleocapsid Phosphoprotein (N)

Spike Glycoprotein

(S)

RNA

SARS Virus

IIT Bombay

16  

Proteomics Course NPTEL

_

+

Sample wells

Buffe r

Gel

Glass/

Plastic plates Protein Samples loaded into

sample wells Protein bands

after staining

385 Proteins with >2 fold change excised

Trypsin Digestion Trypsin

38 Spots selected for

Protein Identification 22 plasma

samples 4 SARS patients

6 Healthy Patients 6 Healthy Controls

(9)

IIT Bombay

17  

Proteomics Course NPTEL

IIT Bombay

18  

Proteomics Course NPTEL

Intensity

Elution time (min)

Your name Search title

Email

Database (s)

SwissProt NCBInr MSDB

Enzyme

Taxonomy Fixed modification s Variable modification

Peptide tol. MS/MS tol.

Peptide charge

Data file Choose file

Monoisotopic Average

Proteomics [email protected]

Sample protein

Trypsin

Bacterial

Oxidation (M)

1.2 Da 0.2 Da

Quantitation

# C13

Data format

Instrument Precursor

Start search…

ESI-Q-TOF

LC-MS Data Analysis

Mass Analyzer #2

Collision

Mass Analyzer #1

Cell Ion

Source

(10)

IIT Bombay

19  

Proteomics Course NPTEL

Differentially expressed proteins

IIT Bombay

20  

Proteomics Course NPTEL

SDS-PAGE

PVDF

(11)

IIT Bombay

21  

Proteomics Course NPTEL

1 2 3 4

44 kDa 22 kDa Non–reducing Conditions

1 2 3 4

Recomb PrxII Normal Patient Sample 1 Patient Sample 2 Recomb PrxII Normal Patient Sample 1 Patient Sample 2

Reducing

IIT Bombay

22  

Proteomics Course NPTEL

T cell T cell Receptor Viral peptide HLA Class I CD8

Virus

Peroxiredoxin II

(12)

IIT Bombay

23  

Proteomics Course NPTEL

Acute Phase Proteins in Excess

Indicates bad liver responsible for weak

defense against SARS

SARS Corona Virus Infection

(13)

IIT Bombay

25  

Proteomics Course NPTEL

Cy3

Cy2

Cy5 Sample 1

Standard (1+2)

Sample 2

Mix

Cy3 Excitation

Cy5 Excitation

Cy2 Excitation

Pro te in Sa mp le s

Cyanine dyes

IIT Bombay

26  

Proteomics Course NPTEL

Sample mixing and 2-DE

D ir ec ti o n o f m ig ra ti o n ,

Internal standard Sample 1 Sample 2

pH 3

pH 9

Inc re a sing pH D ir ec ti o n o f m ig ra ti o n ,

(14)

DeCyder

Software pH  4   pH  7  

pH  4  

Increasing  pI  

pH  7  

Cy3   Excita5on  

Cy5   Excita5on  

Cy2   Excita5on  

IIT Bombay Proteomics Course NPTEL

IIT Bombay

28  

Proteomics Course NPTEL

HC PC

DeCyder Software

Representative Three dimensional Protein expression profiles

(15)

Your  name   Search  -tle  

Email  

Database(s)   SwissProt   NCBInr   MSDB  

Enzyme  

Taxonomy   Fixed   modifica-ons   Variable   modifica-on  

Pep-de  tol.   MS/MS  tol.    

Pep-de  charge   Data  file   Choose  file  

Monoisotopic   Average  

Proteomics   [email protected]  

Sample  protein  

Trypsin  

Bacterial  

Oxida-on  (M)  

1.2     Da   0.2   Da  

Quan-ta-on  

#  C13  

Data  format  

Instrument   Precursor  

Start  search…  

ESI-­‐Q-­‐TOF  

LC-­‐MS  Data  Analysis  

Intensity  

Elu-on  -me  (min)  

Mass Spectra - HC Mass Spectra - PC

Ion Source

IIT Bombay Proteomics Course NPTEL

(16)

IIT Bombay Proteomics Course NPTEL

Byrne et al. 2D-DIGE as a Strategy To Identify Serum Markers for the Progression of Prostate Cancer

J Proteome Research. 2009, 8, 942-57

Case study-3

Identification  of    serum  markers  depicting   progression  of  prostate  cancer  using  DIGE  

Prostrate

Cancer DRE

PSA

Biopsy

Prostrate Cancer Serum

Proteomic Analysis

Healthy Human

Healthy Control Serum

Diagnostic Markers for early prostrate cancer

Tissue

Sample Tissue

Sample

IIT Bombay Proteomics Course NPTEL

(17)

Loading  of   unpurified  Protein  

Mixture  Sample  

Effluent   sample   frac5ons  

Collected   Concentra5on  

Detector   Deriva5zed  

sta5onary  phase  

Ligand   solu5on  

IIT Bombay Proteomics Course NPTEL

Cy3  

Cy2  

Cy5   2   St an dar d   (1 +2 )   1  

Cyanine   dyes  

Mix  

IIT Bombay Proteomics Course NPTEL

(18)

+

Sa mp wells le

Bu ffer Gel

Glass/

Plastic plates Protein bands

after staining- PC

2-­‐D  Electrophoresis  

SDS-Polyacrylamide Gel

IIT Bombay Proteomics Course NPTEL

IIT Bombay Proteomics Course NPTEL

(19)

IIT Bombay

37  

Proteomics Course NPTEL

Intensity

Elution time (min)

Your name Search title

Email

Database (s) SwissProt

NCBInr MSDB

Enzyme

Taxonomy Fixed modification s Variable modification

Peptide tol. MS/MS tol.

Peptide charge

Data file Choose file

Monoisotopic Average

Proteomics [email protected]

Sample protein

Trypsin

Bacterial

Oxidation (M)

1.2 Da 0.2 Da

Quantitation

# C13

Data format

Instrument Precursor

Start search…

ESI-Q-TOF

LC-MS Data Analysis

Mass Analyzer #2

Collision

Mass Analyzer #1

Cell Ion

Source

IIT Bombay

38  

Proteomics Course NPTEL

DeCyder   Progenesis  

Pigment epithelium-derived factor Zinc- α 2-glycoprotein

Ficolin 3

Apolipoprotein A-II

U   U  

D   D  

D   D  

U  

U  

(20)

Capture Ab Target protein 10 Antibody

2ry Antibody

96 well plate

ELISA  

IIT Bombay Proteomics Course NPTEL

PEDF

ZAG

Serum Blocking

reagent

Tissue

Chromogen

IIT Bombay Proteomics Course NPTEL

(21)

IIT Bombay

41  

Proteomics Course NPTEL

•  Serum markers reflective of pathological grade and stage are beneficial for identification of appropriate treatment strategies

•  Confirmed differential expression of PEDF and ZAG by various validation techniques

•  PEDF a potential marker of early stage prostate cancer prediction

IIT Bombay

42  

Proteomics Course NPTEL

•  Two dimensional electrophoresis (2DE and 2D- DIGE) can be applied for various applications

•  Case studies –

•  Drug treatment in malaria parasite

•  Plasma proteome analysis of SARS

•  Serum proteome analysis of prostate cancer

(22)

IIT Bombay Proteomics Course NPTEL

•  Makanga et al. Towards a proteomic definition of CoArtem action in Plasmodium falciparum malaria. Proteomics. 2005, 5, 1849

•  Chen et al. Plasma proteome of severe acute respiratory syndrome analyzed by two-dimensional gel electrophoresis and mass

spectrometry. Proc Natl Acad Sci USA. 2004, 101, 17039

•  Byrne et al. 2D-DIGE as a Strategy To Identify Serum Markers for the Progression of Prostate Cancer. J Proteome Research. 2009, 8, 942-57

•  Issaq H, Veenstra T. Two-dimensional polyacrylamide gel electrophoresis (2D-PAGE): advances and perspectives.

Biotechniques. 2008, 44, 697-8, 700.

IIT Bombay Proteomics Course NPTEL

•  John F. Timms, Rainer Cramer Professor, PROTEOMICS. Difference gel electrophoresis. Volume 8, Issue 23-24, pages 4886–4897, No.

23-24 December 2008.

•  Ray et al. Serum proteome analysis of vivax malaria: An insight into

the disease pathogenesis and host immune response. Journal of

Proteomics. Volume 75, Issue 10, 6 June 2012, Pages 3063–3080

Referensi

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