H61 Detec1on of Clonal Immunoglobulin and T-‐cell …...2016/11/07  · Sample 104 is detected as...

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Sample 104 is detected as posi1ve by 4 PCR MM (IGH FR1, IGK Tubes A and B, and TRG) Sample 284 is detected as posi1ve by all 6 PCR MM (IGH FR1, FR2 and FR3, IGK Tubes A and B, and TRG) The clonal (Pos), polyclonal (Neg) and not testable (N/A) rate detected by different PCR MM for 200 AML samples. Combining mul1ple PCR MM increased posi1ve detec1on rate. * N/A: not amplifiable The concurrent posi1ve rates for different PCR MM combina1ons Among the 99 posi1ve (clonal) samples, the exclusive rate by specific target combina1ons. Introduc1on DNA was extracted from a random sampling of 200 AML anonymized pa1ent residual peripheral blood (PB) or bone marrow (BM) specimens using Qiagen Blood Mini Kit. DNA was quan1fied with NanoDrop and normalized to 10 ng/µL. Each DNA sample (50 ng DNA) was tested with 6 different PCR master mixes (MM) from the Invivoscribe Assay kits: Iden1Clone® IGH Tubes A, B, C, which target the framework (FR) 1, 2, and 3 regions, respec1vely; Iden1Clone® IGK Tube A, IGK Tube B, and Iden1Clone® TRG 2.0. Amplicon products were analyzed using the ABI 3500 XL instrument. Based on the florescent signals, clonal (posi1ve) or polyclonal (nega1ve) were assessed. 200 AML samples were tested for clonal rearrangements within the immunoglobulin heavy (IGH) and light (IGK) chains, and the chain (IGK), Tcell receptor gamma (TRG) loci. Approximate 50% of AML samples demonstrated at least one clonal IGH or TCR gene rearrangement. While it is unclear if it is the malignant myeloid cells or companion lymphoid cells that harbor these soma1c gene rearrangements, the rela1vely high percentage of clonal rearrangements, and their poten1al for monitoring in AML makes this an area worthy of further inves1ga1on. Results Results Conclusions Acute myeloid leukemia (AML) carries a high mortality rate and economic burden. Elucida1ng the heterogeneity of AML will aid in understanding the hematopoie1c stem cell (HSC) self renewal and differen1a1on. Though AML is classified as a myeloid neoplasm, we were interested in determining the prevalence of clonal rearrangements within the immunoglobulin heavy (IGH) and light (IGK) chains, as well as the Tcell receptor gamma (TRG) loci in AML pa1ent samples. Detec1on of Clonal Immunoglobulin and Tcell Receptor Gene Rearrangements in Acute Myeloid Leukemia Ying Huang Ph.D 1 , Zhiyi Xie Ph.D 1 , Aus5n Jacobsen 1 , Duy Duong 1 , Jeff Panganiban 1 , Wenli Huang 1 , Bradley Patay M.D. 1 , Daniela Hubbard 2 , Gillian Pawlowsky 3 , Jordan Thornes 2,3 , Jeffrey E. Miller Ph.D 1,2,3 and Tim Stenzel M.D., Ph.D 1 1 Invivoscribe, Inc., San Diego, USA, 2 LabPMM LLC, San Diego, CA, and 3 LabPMM GmbH, Mar5nsried, Germany Materials and Methods H61 Concurrent Posi-ve Rate IGH (FR1+FR2+FR3) IGK (Tube A +Tube B) IGH (FR1+FR2+FR3) + IGK (Tube A + Tube B) IGH (FR1+FR2+FR3) + IGK (Tube A + Tube B) + TRG 8/28 (29%) 5/23 (22%) 1/35 (3%) 1/99 (1%) Results Iden-Clone IGH Iden-Clone IGK IGH+IGK Overall TRG 2.0 IGH+IGK +TRG Overall Tube A (FR1) Tube B (FR2) Tube C (FR3) IGH Overall Tube A Tube B IGK Overall Pos 23 (12%) 14 (7%) 16 (8%) 28 (14%) 17 (9%) 11 (6%) 23 (12%) 35 (18%) 85 (43%) 99 (50%) Neg 121 (61%) 81 (41%) 181 (91%) 172 (86%) 176 (88%) 175 (88%) 175 (88%) 165 (83%) 114 (57%) 101 (51%) *N/A 56 (28%) 105 (53%) 3 (2%) 0 (0%) 7 (4%) 14 (7%) 2 (1%) 0 (0%) 1 (0.5%) 0 (0%) Total 200 (100%) 200 (100%) 200 (100%) 200 (100%) 200 (100%) 200 (100%) 200 (100%) 200 (100%) 200 (100%) 200 (100%) PB/BM Extract DNA PCR for IGH Tube A (FR1) ABI 3500 XL Tube B (FR2) ABI 3500 XL Tube C (FR3) ABI 3500 XL PCR for IGK Tube A ABI 3500 XL Tube B ABI 3500 XL PCR for TRG ABI 3500 XL ABI 3500 XL IGH IGK TRG IGH Only 5% IGK Only 2% TRG Only 65% IGH/IGK 6% IGH/TRG 7% IGK/TRG 5% IGH/IGK/TRG 10%

Transcript of H61 Detec1on of Clonal Immunoglobulin and T-‐cell …...2016/11/07  · Sample 104 is detected as...

Page 1: H61 Detec1on of Clonal Immunoglobulin and T-‐cell …...2016/11/07  · Sample 104 is detected as posi1ve by 4 PCR MM ( Tubes A and B, and IGH FR1, IGK TRG) • • Sample 284 is

•     Sample  104  is  detected  as  posi1ve  by  4  PCR  MM  (IGH  FR1,  IGK  Tubes  A  and  B,  and  TRG)  

 •  Sample  284  is  detected  as  posi1ve  by  all  6  PCR  MM  (IGH  FR1,  FR2  and  FR3,  IGK  Tubes  A  and  

B,  and  TRG)  

•  The  clonal    (Pos),  polyclonal  (Neg)  and  not  testable  (N/A)  rate  detected  by  different  PCR  MM      for  200  AML  samples.    Combining  mul1ple  PCR  MM  increased  posi1ve  detec1on  rate.  

* N/A: not amplifiable

•  The  concurrent  posi1ve  rates  for  different  PCR  MM  combina1ons  

•  Among  the  99  posi1ve  (clonal)  samples,  the  exclusive  rate  by  specific  target  combina1ons.  

Introduc1on  

•  DNA   was   extracted   from   a   random   sampling   of   200   AML   anonymized   pa1ent   residual  peripheral  blood  (PB)  or  bone  marrow  (BM)  specimens  using  Qiagen  Blood  Mini  Kit.    

•  DNA  was  quan1fied  with  NanoDrop  and  normalized  to  10  ng/µL.  •  Each  DNA  sample  (50  ng  DNA)  was  tested  with  6  different  PCR  master  mixes  (MM)  from  the  

Invivoscribe  Assay  kits:  Iden1Clone®  IGH  Tubes  A,  B,  C,  which  target  the  framework  (FR)  1,  2,  and  3  regions,  respec1vely;  Iden1Clone®    IGK  Tube  A,  IGK  Tube  B,  and  Iden1Clone®  TRG  2.0.    Amplicon  products  were   analyzed  using   the  ABI   3500  XL   instrument.     Based  on   the  florescent  signals,  clonal  (posi1ve)  or  polyclonal  (nega1ve)  were  assessed.  

 

•  200  AML  samples  were  tested  for  clonal  rearrangements  within  the  immunoglobulin  heavy  (IGH)  and  light  (IGK)  chains,  and  the  chain  (IGK),  T-­‐cell  receptor  gamma  (TRG)  loci.  

•  Approximate   50%   of   AML   samples   demonstrated   at   least   one   clonal   IGH   or   TCR   gene  rearrangement.    

•  While   it   is   unclear   if   it   is   the   malignant   myeloid   cells   or   companion   lymphoid   cells   that  harbor   these   soma1c   gene   rearrangements,   the   rela1vely   high   percentage   of   clonal  rearrangements,   and   their   poten1al   for  monitoring   in   AML  makes   this   an   area  worthy   of  further  inves1ga1on.      

Results  Results  

Conclusions  

Acute  myeloid  leukemia  (AML)  carries  a  high  mortality  rate  and  economic  burden.  Elucida1ng  the   heterogeneity   of   AML   will   aid   in   understanding   the   hematopoie1c   stem   cell   (HSC)   self-­‐renewal   and   differen1a1on.   Though   AML   is   classified   as   a   myeloid   neoplasm,   we   were  interested  in  determining  the  prevalence  of  clonal  rearrangements  within  the  immunoglobulin  heavy   (IGH)   and   light   (IGK)   chains,   as   well   as   the   T-­‐cell   receptor   gamma   (TRG)   loci   in   AML  pa1ent  samples.  

Detec1on  of  Clonal  Immunoglobulin  and  T-­‐cell  Receptor  Gene  Rearrangements  in  Acute  Myeloid  Leukemia  Ying  Huang  Ph.D1,  Zhiyi  Xie  Ph.D1,  Aus5n  Jacobsen1,  Duy  Duong1,  Jeff  Panganiban1,  Wenli  Huang1,  Bradley  Patay  M.D.1,  Daniela  Hubbard2,  Gillian  Pawlowsky3,  

Jordan  Thornes2,3,  Jeffrey  E.  Miller  Ph.D1,2,3  and  Tim  Stenzel  M.D.,  Ph.D1   1Invivoscribe,  Inc.,  San  Diego,  USA,  2  LabPMM  LLC,  San  Diego,  CA,  and  3LabPMM  GmbH,  Mar5nsried,  Germany

Materials  and  Methods  

H61

Concurrent  Posi-ve  Rate  

IGH  (FR1+FR2+FR3)   IGK  (Tube  A  +Tube  B)  IGH  (FR1+FR2+FR3)  

+  IGK  (Tube  A  +  Tube  B)  IGH  (FR1+FR2+FR3)  

+  IGK  (Tube  A  +  Tube  B)  +  TRG  

8/28  (29%)   5/23  (22%)   1/35  (3%)   1/99  (1%)  

Results  

Iden-Clone  IGH   Iden-Clone  IGK  

IGH+IGK  Overall   TRG  2.0  

IGH+IGK+TRG  Overall  

Tube  A  (FR1)  

Tube  B  (FR2)  

Tube  C  (FR3)  

IGH  Overall     Tube  A   Tube  B   IGK  

Overall  

Pos  23    

(12%)  14    (7%)  

16    (8%)  

28    (14%)  

17    (9%)  

11    (6%)  

23    (12%)  

35    (18%)  

85    (43%)  

99    (50%)  

Neg  121    (61%)  

81    (41%)  

181    (91%)  

172    (86%)  

176    (88%)  

175    (88%)  

175    (88%)  

165    (83%)  

114    (57%)  

101    (51%)  

*N/A  56    

(28%)  105    (53%)  

3    (2%)  

0    (0%)  

7    (4%)  

14    (7%)  

2    (1%)  

0    (0%)  

1    (0.5%)  

0    (0%)  

Total  200  

(100%)  200  

(100%)  200  

(100%)  200  

(100%)  200  

(100%)  200  

(100%)  200  

(100%)  200  

(100%)  200  

(100%)  200  

(100%)  

PB/BM  

Extract  DNA  

PCR  for  IGH  

Tube  A    (FR1)  

ABI  3500  XL  

Tube  B    (FR2)  

ABI  3500  XL  

Tube  C    (FR3)  

ABI  3500  XL  

PCR  for  IGK  

Tube  A  

ABI  3500  XL  

Tube  B  

ABI  3500  XL  

PCR  for  TRG  

ABI  3500  XL  ABI  3500  XL  

IGH  

IGK  

TRG  

IGH  Only5% IGK  Only

2%

TRG  Only65%

IGH/IGK6%

IGH/TRG7%

IGK/TRG5%

IGH/IGK/TRG10%