Methods and compositions for modulating cytotoxic lymphocyte activity
The subject matter disclosed herein is generally directed to novel CD8 + tumor infiltrating lymphocyte (TIL) subtypes associated with response to immunotherapy treatment. Specifically, the subtypes are associated with checkpoint blockade therapy. Moreover, the subject matter disclosed herein is generally directed to methods and compositions for use of the subtypes. Also, disclosed herein are gene signatures and markers associated with the subtypes and use of said signatures and markers. Further disclosed are therapeutic methods of using said gene signatures and immune cell subtypes. Further disclosed are pharmaceutical compositions comprising populations of CD8 + TILs enriched for a specific subtype.
1. An isolated CD8 + T cell obtained by sorting CD8 + T cells for TIM3 − PD1 − CD62L − Slamf7 + CX3CR1 − CD8 + T cells, wherein the isolated CD8 + T cell comprises expression of SLAMF7 and no expression of CD62L, CX3CR1, TIM3 and PD1, and wherein the isolated CD8 + T cell expresses an exogenous chimeric antigen receptor (CAR) or T cell receptor (TCR).
2. The isolated CD8 + T cell according to claim 1 , wherein the CD62L − Slamf7 + CX3CR1 − CD8 + T cell comprises higher expression of one or more genes or polypeptides selected from the group consisting of Tcf7, Egr2, Zfp827, Satb1, Zfp512, Irf8, Relb, Sp140, Myb, Id3, Hes6, Fos, Ikzf2 and Myc relative to CD62L − Slamf7 + CX3CR1 + CD8 + T cells.
3. The isolated CD8 + T cell according to claim 1 , further characterized by a gene signature comprising one or more genes or polypeptides in Table 3, 4 or 5.
4. The isolated CD8 + T cell according to claim 1 , wherein the CD8 + T cell is a human cell.
5. A population of CD8 + T cells comprising CD8 + T cells as defined in claim 1 .
6. The population of CD8 + T cells according to claim 5 , wherein the population of cells comprises CD8 + T cells autologous for a subject suffering from cancer.
7. The population of CD8 + T cells according to claim 5 , wherein the population of cells comprises cells modified to knockout or downregulate expression of one or more genes selected from the group consisting of Bhlhe40, Klf2, Zeb2, Prdm1, Arnt1, Ets1, Junb, Id2, Hivep2, Rora, Nr1d2, Meis2, Arnt, Nr4a1, Meis3, Zmiz1, Vezf1, Nfe211, Mxi1, Rxra and Creb5, wherein the population of cells comprises cells modified to downregulate expression of Bhlhe40, such that the population of cells maintain at least a basal level of Bhlhe40 expression.
8. A pharmaceutical composition comprising the CD8 + T cell as defined in claim 1 or a population of CD8 + T cells comprising CD8 + T cells as defined in claim 1 .
9. A method for treating cancer comprising administering to a subject in need thereof the pharmaceutical composition according to claim 8 , wherein the method comprises:
a) isolating from a biological sample of the subject a CD8 + T cell or CD8 + T cell population;
b) in vitro expanding the CD8 + T cell or CD8 + T cell population of a);
c) enriching the expanded cells for CD8 + T cells as defined in claim 1 ; and
d) administering the in vitro expanded CD8 + T cell or CD8 + T cell population of b) or c) to the subject.
10. The method according to claim 9 , wherein the pharmaceutical composition is administered after ablation therapy or before surgery; and/or
wherein the method further comprises administering a checkpoint blockade therapy, wherein the checkpoint blockade therapy comprises anti-TIM3, anti-CTLA4, anti-PD-L1, anti-PD1, anti-TIGIT, anti-LAG3, or combinations thereof.
11. The population of CD8 + T cells according to claim 5 , wherein the population of cells comprises greater than 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% or 95% of PD1− CD62L − Slamf7 + CX3CR1 − CD8 + T cells.
12. The population of CD8 + T cells according to claim 6 , wherein the activated CD8 + T cells are activated with tumor specific antigens.
13. The population of CD8 + T cells according to claim 12 , wherein the tumor specific antigens are subject specific antigens.
14. The isolated CD8+ T cell according to claim 1 , wherein the cell is a CD8 + T cell autologous for a subject suffering from cancer.
15. The isolated CD8+ T cell according to claim 1 , wherein said CD8 + T cell displays tumor specificity.
16. The population of CD8 + T cells according to claim 5 , wherein the population of cells display tumor specificity.
17. The population of CD8 + T cells according to claim 5 , wherein the population of cells comprise expanded cells.
18. The population of CD8 + T cells according to claim 5 , wherein the population of cells comprise activated CD8 + T cells.
19. The population of CD8 + T cells according to claim 5 , wherein the population of cells comprises cells modified to increase expression of one or more genes selected from the group consisting of Tcf7, Egr2, Zfp827, Satb1, Zfp512, Irf8, Relb, Sp140, Myb, Id3, Hes6, Fos, Ikzf2 and Myc, wherein the population of cells comprises cells modified to increase expression of Tcf7.