Monitoring health and disease status using clonotype profiles

Patent metadata

Field	Value
Publication number	US-9512487-B2
Application number	US-201414176551-A
Country	US
Kind code	B2
Filing date	Feb 10, 2014
Priority date	Nov 7, 2008
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

There is a need for improved methods for determining the diagnosis and prognosis of patients with conditions, including autoimmune disease and cancer, especially lymphoid neoplasms, such as lymphomas and leukemias. Provided herein are methods for using DNA sequencing to identify personalized, or patient-specific biomarkers in patients with lymphoid neoplasms, autoimmune disease and other conditions. Identified biomarkers can be used to determine and/or monitor the disease state for a subject with an associated lymphoid disorder or autoimmune disease or other condition. In particular, the invention provides a sensitive method for monitoring lymphoid neoplasms that undergo clonal evolutions without the need to development alternative assays for the evolved or mutated clones serving as patient-specific biomarkers.

First claim

What is claimed is:

1. A method of determining the likelihood that a lymphoid neoplasm in a patient with defined cancer clonotypes has acquired new genetic changes comprising the steps of:
(a) determining a clonotype profile from recombined DNA sequences in T-cells and/or B-cells comprising the steps of:
(i) amplifying molecules of recombined nucleic acids from a patient sample comprising T-cells and/or B-cells in a multiplex polymerase chain reaction (PCR);
(ii) spatially isolating individual molecules of the amplified recombined nucleic acid on a solid support;
(iii) sequencing by synthesis the spatially isolated individual molecules of recombined nucleic acid to provide sequence reads and identifying clonotypes therefrom to form a clonotype profile; and

(b) detecting from said clonotype profile the presence of one or more evolved clonotypes from the patient, wherein said evolved clonotypes comprise previously unrecorded clones that are at least 90% homologous to said defined cancer clonotypes.

2. The method of claim 1 wherein said evolved clonotypes are related to said cancer clonotypes by somatic rearrangement.

3. The method of claim 2 wherein said somatic rearrangement is a VH replacement or an NDN replacement whereby said evolved clonotype has identically mutated V region and J region as said cancer clonotype but having a different NDN region as said cancer clonotype.

4. The method of claim 1 wherein said sample and said successive samples are obtained from peripheral blood or bone marrow of said patient and wherein said step of sequencing provides at least 10 4 sequence reads.

5. The method of claim 1 wherein said step of sequencing provides at least 10 4 sequence reads.

6. The method of claim 3 wherein in said step of sequencing at least a plurality of said sequence reads are combined to form each clonotype.

7. The method of claim 6 wherein said plurality is 10 or more and wherein said step of sequencing provides at least 10 4 sequence reads.

8. The method of claim 3 wherein said clonotype profile comprises every clonotype of said sample present at a frequency of 0.01 percent or greater with a probability of ninety-nine percent.

9. The method of claim 8 wherein in said step of sequencing at least a plurality of said sequence reads are combined to form each clonotype and said step of sequencing provides at least 10 4 sequence reads each having a length of at least 30 bp.

10. The method of claim 1 wherein said clonotypes are formed from said sequence reads having lengths in the range of from 20 to 400 nucleotides.

11. The method of claim 1 wherein said evolved clonotypes are related to said cancer clonotypes by somatic hypermutation.

12. The method of claim 1 wherein said clonotypes comprise a rearrangement or a portion of a rearrangement selected from the group consisting of a VDJ rearrangement of IgH, a DJ rearrangement of IgH, a VJ rearrangement of IgK, a VJ rearrangement of IgL, a VDJ rearrangement of TCRβ, a DJ rearrangement of TCRβ, a VJ rearrangement of TCRα, a VJ rearrangement of TCRγ, a VDJ rearrangement of TCRδ, and a VD rearrangement of TCRδ.

13. The method of claim 1 wherein said cancer clonotypes include a cross lineage rearrangement.

14. The method of claim 1 wherein said cancer clonotypes include an inactive immune receptor.

15. A method of determining the likelihood that a lymphoid neoplasm in a patient with defined cancer clonotypes has acquired new genetic changes comprising the steps of:
(a) determining a clonotype profile from nucleic acid sequences in T-cells and/or B-cells comprising the steps of:
(i) reverse transcribing RNA obtained from a patient sample comprising T cells and/or B-cells to obtain cDNA encoding rearranged immune receptors;
(ii) amplifying cDNA encoding rearranged immune receptors in a multiplex polymerase chain reaction (PCR);
(iii) spatially isolating individual molecules of the amplified cDNA encoding rearranged immune receptors on a solid surface;
(iv) sequencing by synthesis the individual molecules the amplified cDNA encoding rearranged immune receptors to provide sequence reads and identifying clonotypes therefrom to form a clonotype profile; and

(b) detecting from said clonotype profile the presence of one or more evolved clonotypes from the patient wherein a evolved clonotype comprises a previously unrecorded clone that is at least 90% homologous to said defined cancer clonotypes of the patient.

16. The method of claim 15 wherein said evolved clonotypes are related to said cancer clonotypes by somatic rearrangement.

17. The method of claim 16 wherein said somatic rearrangement is a VH replacement or an NDN replacement whereby said evolved clonotype has identically mutated V region and J region as said cancer clonotype but having a different NDN region as said cancer clonotype.

18. The method of claim 15 wherein said sample and said successive samples are obtained from peripheral blood or bone marrow of said patient and wherein said step of sequencing provides at least 10 4 sequence reads.

19. The method of claim 15 wherein said step of sequencing provides at least 10 4 sequence reads.

20. The method of claim 17 wherein in said step of sequencing at least a plurality of said sequence reads are combined to form each clonotype.

21. The method of claim 20 wherein said plurality is 10 or more and wherein said step of sequencing provides at least 10 4 sequence reads.

22. The method of claim 17 wherein said clonotype profile comprises every clonotype of said sample present at a frequency of 0.01 percent or greater with a probability of ninety-nine percent.

23. The method of claim 22 wherein in said step of sequencing at least a plurality of said sequence reads are combined to form each clonotype and said step of sequencing provides at least 10 4 sequence reads each having a length of at least 30 bp.

24. The method of claim 15 wherein said clonotypes are formed from said sequence reads having lengths in the range of from 20 to 400 nucleotides.

25. The method of claim 15 wherein said evolved clonotypes are related to said cancer clonotypes by somatic hypermutation.

26. The method of claim 15 wherein said clonotypes comprise a rearrangement or a portion of a rearrangement selected from the group consisting of a VDJ rearrangement of IgH, a DJ rearrangement of IgH, a VJ rearrangement of IgK, a VJ rearrangement of IgL, a VDJ rearrangement of TCRβ, a DJ rearrangement of TCRβ, a VJ rearrangement of TCRα, a VJ rearrangement of TCRγ, a VDJ rearrangement of TCRδ, and a VD rearrangement of TCRδ.

27. The method of claim 15 wherein said cancer clonotypes include a cross lineage rearrangement.

28. The method of claim 15 wherein said cancer clonotypes include an inactive immune receptor.

Assignees

• Adaptive Biotechnologies Corp

Inventors

• Faham Malek
• Willis Thomas

Classifications

• C12Q2600/112

  Disease subtyping, staging or classification · CPC title

• C12Q1/6874

  involving nucleic acid arrays, e.g. sequencing by hybridisation · CPC title

• C12Q2600/156

  Polymorphic or mutational markers · CPC title

• C12Q2600/158

  Expression markers · CPC title

• C12Q2600/118

  Prognosis of disease development · CPC title