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IMMUNOLOGIA MOLECOLARE

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Anno accademico 2010/2011

Codice dell'attività didattica
INT0234
Docenti
Guido Forni (Titolare del corso)
Prof. Federica Cavallo (Titolare del corso)
Corso di studi
laurea spec. in biotecnologie molecolari ed Indirizzo Imaging
Anno
1° anno
Periodo didattico
Primo semestre
Tipologia
Caratterizzante
Crediti/Valenza
5
SSD dell'attività didattica
MED/04 - patologia generale
Oggetto:

Sommario insegnamento

Oggetto:

Programma

 

The subsets of CD4 T lymphocytes: CD4 Th1, CD4 Th2, CD4 T17, CD4 Treg, Follicular CD4 cells, Other subsets.

The differentiation of CD4 T cells: Thymic education of T cells,  Thymic differentiation of T CD4+ cells,    Transcriptional circuits controlling CD4T cells differentiation.

The T cell receptor complex (TCR):  TCR structure, Gene rearrangement, Signal transduction, Accessory and adhesion molecules; Costimulatory signals

CD4 Th1 cells: Role of cytokines in the differentiation of Th1 subset, Role of STAT1 in the differentiation of Th1 subset, Effector functions of Th1 cells, Th1 and cell-mediated immunity, Th1 and autoimmunity, Th1 and tumors

CD4 T helper 2 cells: Role of cytokines in the differentiation of Th2 subset, Role of GATA3 in the differentiation of Th2 subset Effector functions of Th2 cells, Th2 in humoral immunity, Th2 in allergy.

CD4 T helper 17: Transcripional and cytokine circuits in Th17 differentiation, Effector functions of Th2 cells,

Th17 and infection, Th 17 role in autoimmune diseases, Th 17 role in tumor immunity

CD4 T Regulatory cells (Treg): Natural Treg, Adaptive Treg, Foxp3 regulator and control of Treg functions, Effector functions of Treg cells

Follicular helper CD4 T cells: Features and differentiation

CD4 Th3 cells: Features and differentiation

CD4 Tr1 cells: Features and differentiation

CD4 Th9 cells: Features and differentiation

Th 22: Features and differentiation

How CD4 T cells shape an appropriate antibody response: T cells B cell interaction, Mechanisms guiding the isotype switch, Cytokine signals involved in the isotype switch

Plasticity of Th cells

The AIDS as a CD4 Th cells disease: HIV adsorption, Role of Delta 16, Causes of CD4 T cells disappearance

Why CD4 deficiency leads to death.

Testi consigliati e bibliografia

Oggetto:

Programma

Key features of T lymphocytes:

1.      Thymic differentiation and development of CD8 and CD4 T lymphocytes

- Blackburn CC, Manley NR Developing a new paradigm for thymus organogenesis. Nat Rev Immunol. 2004 Apr;4(4):278-89

- Anderson G, Jenkinson EJ. Lymphostromal interactions in thimic development and function Nat Rev Immunol. 2001 Oct;1(1):31-40.

- Anderson MK et al. At the crossroads: diverse roles of early thymocyte transcriptional regulators. Immunol Rev. (2006)

- Aliahmad P, Kaye J. Commitment issues: linking positive selection signals and lineage diversification in the thymus. Immunol Rev. 2006 Feb;209:253-73.

- Wang L, Xiong Y, Bosselut R Tenuous paths in unexplored territory: From T cell receptor signaling to effector gene expression during thymocyte selection. Semin Immunol 2010 Oct;22(5):294-302.

2.      Maturation and differentiation process of CD4 T cells

- Santana MA et al. What it takes to become an effector T cell: the process, the cells involved, and the mechanisms. J Cell Physiol. (2003)

- Wan YY. Multi-tasking of helper T cells. Immunology 2010 Jun;130(2):166-71.

3.      Activation of naïve CD4 T cells

- Nakayama T, Yamashita M The TCR-mediated signaling pathways that control the direction of helper T cell differentiation. Semin Immunol 2010 Oct;22(5):303-9.

- Sundrud MS, Nolan MA. Synergistic and combinatorial control of T cell activation and differentiation by transcription factors. Curr Opin Immunol. 2010 Jun;22(3):286-92.

- McKinstry KK et al.  The potential of CD4 T cell memory. Immunology. (2010)

- Zhu J, Yamane H, Paul WE. Differentiation of effector CD4 T cell populations Annu Rev Immunol. 2010 Mar;28:445-89.

4.      Proliferation and differentiation into effector T cells

- Carpenter AC, Bosselut R. Decision checkpoints in the thymus. Nat Immunol. 2010 Aug;11(8):666-73. Epub 2010 Jul 20.

- Cuddapah S, Barski A, Zhao K. Epigenomics of T cell activation, differentiation, and memory. Curr Opin Immunol. 2010 Jun;22(3):341-7. Epub 2010 Mar 11.

5.      Effector functions of CD4 T cells

- Vinay DS, Know BS. CD11c+CD8+ T cells: two-faced adaptive immune regulators. Cell Immunol. 2010;264(1):18-22. Epub 2010 May 27.

6.      T cells and peptide recognition by two different MHC molecules

- Shoukry NH, Lavoie PM, Thibodeau J, D'Souza S, Sekaly RP. MHC class II-dependent peptide antigen versus superantigen presentation to T cells. Hum Immunol. 1997 May;54(2):194-201.

T cell receptor complex (TCR):

7.      TCR structure

- Pardoll DM, Kruisbeek AM, Fowlkes BJ, Coligan JE, Schwartz RH. The unfolding story of T cell receptor gamma. FASEB J. 1987 Aug;1(2):103-9.

- Berg LJ et al. Molecular determinants of TCR expression and selection. Curr Opin Immunol. (2001)

- B, van Santen HM. Two receptors, two kinases, and T cell lineage determination. Sci Signal. 2010 Mar 23;3(114):pe11.

- Al-Lazikani B et al. Canonical structures for the hypervariable regions of T cell alphabeta receptors. J Mol Biol. (2000)

- Machius M, Cianga P, Deisenhofer J, Ward ES. Crystal structure of a T cell receptor Valpha11 (AV11S5) domain: new canonical forms for the first and second complementarity determining regions. J Mol Biol. 2001 Jul 20;310(4):689-98.

8.      Gene rearrangement for T cell receptor

9.      TCR signal transduction

- Wucherpfennig KW et al. Structural biology of the T-cell receptor: insights into receptor assembly, ligand recognition, and initiation of signaling. Cold Spring Harb Perspect Biol. (2010)

10.   TCR accessory and adhesion molecules

- Jaiswal AI, Dubey C, Swain SL, Croft M. Regulation of CD40 ligand expression on naive CD4 T cells: a role for TCR but not co-stimulatory signals. Int Immunol. 1996 Feb;8(2):275-85.

11.   TCR costimulatory signals

- Smith-Garvin JE, Koretzky GA, Jordan MS. T cell activation. Annu Rev Immunol. 2009;27:591-619.

- Coyle AJ, Gutierrez-Ramos JC. The expanding B7 superfamily: increasing complexity in costimulatory signals regulating T cell function. Nat Immunol. 2001 Mar;2(3):203-9.

CD8 T cells:

12.   CD8 T cells: features and differentiation

- Seder RA et al. Similarities and differences in CD4+ and CD8+ effector and memory T cell generation Nat Immunol. (2003)

- Rutishauser RL, Kaech SM. Generating diversity: transcriptional regulation of effector and memory CD8 T-cell differentiation. Immunol Rev. 2010 May;235(1):219-33.

13.   12.Different activation pathways of CD8 T cells

- John T. Harty, Amy R. Tvinnereim, and Douglas W. White CD8+ T cell effector mechanisms in resistance to infection. Annu. Rev. Immunol. 2000. 18:275–308

14.   Programmed cell death induced by CD8 T cells

- Chávez-Galán L, Arenas-Del Angel MC, Zenteno E, Chávez R, Lascurain R. Cell death mechanisms induced by cytotoxic lymphocytes. Cell Mol Immunol. 2009 Feb;6(1):15-25.

Acquired immunodeficiency syndrome (AIDS):

15.   Attack and damage caused by HIV

- Barré-Sinoussi F et al. HIV: a discovery opening the road to novel scientific knowledge and global health improvement. Virology. (2010)

- Brites C, Sampalo J, Oliveira A. HIV/human T-cell lymphotropic virus coinfection revisited: impact on AIDS progression. AIDS Rev. 2009 Jan-Mar;11(1):8-16.

- Baltimore D. The enigma of HIV infection. Cell. 1995 Jul 28;82(2):175-6. Review.

16.   HIV life cycle and its interactions with CD4 T cells

- Estes JD et al. The role of collagen deposition in depleting CD4+ T cells and limiting reconstitution in HIV-1 and SIV infections through damage to the secondary lymphoid organ niche. Semin Immunol. (2008)

- Espert L et al. Autophagy and CD4+ T lymphocyte destruction by HIV-1. Autophagy. (2007)

- Clapham PR, McKnight A. HIV-1 receptors and cell tropism. Br Med Bull. 2001;58:43-59. Review.

- Choe H, Martin KA, Farzan M, Sodroski J, Gerard NP, Gerard C. Structural interactions between chemokine receptors, gp120 Env and CD4. Semin Immunol. 1998 Jun;10(3):249-57. Review.

- Moore JP, Trkola A, Dragic T. Co-receptors for HIV-1 entry. Curr Opin Immunol. 1997 Aug;9(4):551-62. Review.

- Broder CC, Collman RG. Chemokine receptors and HIV. J Leukoc Biol. 1997 Jul;62(1):20-9. Review.

- Sirskyj D, Thèze J, Kumar A, Kryworuchko M. Disruption of the gamma c cytokine network in T cells during HIV infection. Cytokine. 2008 Jul;43(1):1-14. Epub 2008 Apr 15.

- Regulation of HIV-1 latency by T-cell activation. Williams SA et al. Cytokine. (2007)

- Douek DC, Picker LJ, Koup RA. T cell dynamics in HIV-1 infection. Annu Rev Immunol. 2003;21:265-304. Epub 2001 Dec 19. Review.

- Unutmaz D, Littman DR. Expression pattern of HIV-1 coreceptors on T cells: implications for viral transmission and lymphocyte homing. Proc Natl Acad Sci U S A. 1997 Mar 4;94(5):1615-8.

- Wyatt R, Sodroski J. The HIV-1 envelope glycoproteins: fusogens, antigens, and immunogens. Science. 1998 Jun 19;280(5371):1884-8.

- Berger EA, Murphy PM, Farber JM. Chemokine receptors as HIV-1 coreceptors: roles in viral entry, tropism, and disease. Annu Rev Immunol. 1999;17:657-700.

17.   immune response and vaccination against HIV

- Farber JM, Berger EA. HIV's response to a CCR5 inhibitor: I'd rather tighten than switch! Proc Natl Acad Sci U S A. 2002 Feb 19;99(4):1749-51.

- O'Connell KA, Bailey JR, Blankson JN. Elucidating the elite: mechanisms of control in HIV-1 infection. Trends Pharmacol Sci. 2009 Dec;30(12):631-7.

- Bartha I et al. Has HIV evolved to induce immune pathogenesis? Trends Immunol. (2008)

T helper type 1:

18.   Th1 features and differentiation

- Szabo SJ et al. Molecular mechanisms regulating Th1 immune responses. Annu Rev Immunol. (2003)

- Damsker JM, Hansen AM, Caspi RR. Th1 and Th17 cells: adversaries and collaborators. Ann N Y Acad Sci. 2010 Jan;1183:211-21.

19.   Role of STAT1 in the differentiation of Th1 subset

20.   Th1 and cell-mediated immunity

21.   Th1 and autoimmunity

T helper type 2:

22.   Th2: features and differentiation

- Pulendran B, Tang H, Manicassamy S. Programming dendritic cells to induce T(H)2 and tolerogenic responses. Nat Immunol 2010 Aug;11(8):647-55. Epub 2010 Jul 20.

23.   Role of GATA-3 in the differentiation of Th2 cells

24.   Th2 and humoral immunity

25.   Th2 and allergy

T helper type 17:

26.   Th17: features and differentiation

- Hirota K, Martin B, Veldhoen M Development, regulation and functional capacities of Th17 cells. Semin Immunopathol 2010 Mar;32(1):3-16. Epub 2010 Jan 27.

- Ji Y et al. Th17 cells: positive or negative role in tumor? Cancer Immunol Immunother. (2010)

- Lee YK et al. Developmental plasticity of Th17 and Treg cells Curr Opin Immunol. (2009)

- Harrington LE, Mangan PR Weaver CT. Expanding the effector CD4 T-cell repertoire: the Th17 lineage. Curr Opin Immunol. 2006 Jun;18(3):349-56. Epub 2006 Apr 17.

- Weaver CT, Hatton RD. Interplay between the TH17 and Treg cell lineages: a (co-)evolutionary perspective. Nat Rev Immunol. 2009 Dec;9(12):883-9.

27.   Th17 and infection

28.   Th17 role in autoimmune diseases

Regulatory T cells (Treg):

29.   Treg features and differentiation

- Corthay A et al. How do regulatory T cells work? Scand J Immunol. (2009)

- Wei S, Kryczek I, Zou W. Regulatory T cell compartimentalization and trafficking. Blood. 2006 Jul 15;108(2):426-31. Epub 2006 Mar 14.

- Zhou X et al. Plasticity of CD4(+) FoxP3(+) T cells. Curr Opin Immunol. (2009)

- Sakaguchi S, Wing K, Onishi Y, Prieto-Martin P, Yamaguchi T. Regulatory T cells: how do they suppress immune responses? Int Immunol. 2009 Oct;21(10):1105-11.

30.   natural and adaptive Treg

- Miyara M, Sakaguchi S Natural regulatory T cells: mechanisms of suppression. Trends Mol Med 2007 Mar;13(3):108-16. Epub 2007 Jan 24.

- Sakaguchi S. Naturally arising Foxp3-expressing CD25+CD4+ regulatory T cells in immunological tolerance to self and non-self. Nat Immunol. 2005 Apr;6(4):345-52.

31.   Foxp3 regulator and control of Treg functions

- Hori S, Sakaguchi S. Foxp3: a critical regulator of the development and function of regulatory T cells. Microbes Infect. 2004 Jul;6(8):745-51.

- Feuerer M, Hill JA, Mathis D, Benoist C. Foxp3+ regulatory T cells: differentiation, specification, subphenotypes. Nat Immunol. 2009 Jul;10(7):689-95.

- Fontenot JD, Rudensky AY. A well adapted regulatory contrivance: regulatory T cell development and the forkhead family transcription factor Foxp3. Nat Immunol. 2005 Apr;6(4):331-7.

Other Th “lineages”:

32.    Follicular helper T cells: features and differentiation

- King C, Tangye SG, Mackay CR. T follicular helper (TFH) cells in normal and dysregulated immune responses. Annu Rev Immunol. 2008;26:741-66.

- Spolski R et al. IL-21 and T follicular helper cells. Int Immunol. (2010)

- Chtanova T, Tangye SG, Newton R, Frank N, Hodge MR, Rolph MS, Mackay CR. T follicular helper cells express a distinctive transcriptional profile, reflecting their role as non-Th1/Th2 effector cells that provide help for B cells. J Immunol. 2004 Jul 1;173(1):68-78.

33.   Th3, Tr1, Th9 and Th22 cells: features and differentiation

- Zhu J, Yamane H, Paul WE. Differentiation of effector CD4 T cell populations Annu Rev Immunol. 2010 Mar;28:445-89.

34.   Heterogeneity and plasticity of Th cells

- Murphy KM, Stockinger B Effector T cell plasticity: flexibility in the face of changing circumstances. Nat. Immunol 2010 Aug;11(8):674-80. Epub 2010 Jul 20.

- Annunziato F et al. Heterogeneity of human effector CD4+ T cells Arthritis Res Ther. (2009)

- Zhu J et al. Heterogeneity and plasticity of T helper cells. Cell Res. (2010)

 



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