scholarly journals ACT Up TIL Now: The Evolution of Tumor-Infiltrating Lymphocytes in Adoptive Cell Therapy for the Treatment of Solid Tumors

Immuno ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 194-211
Author(s):  
Thomas Morgan Hulen ◽  
Christopher Aled Chamberlain ◽  
Inge Marie Svane ◽  
Özcan Met

The past decades of cancer immunotherapy research have provided profound evidence that the immune system is capable of inducing durable tumor regression. Although many commercialized anti-cancer immunotherapies are available to patients, these treatment options only scrape the surface of the potential immune-related treatment possibilities for cancer. Additionally, many individuals are ineligible for established immunotherapies due to their cancer type. The adoptive cell transfer of autologous tumor-infiltrating lymphocytes has been used in humans for over 30 years to treat metastatic melanoma, and continued modifications are making it increasingly more effective against other types of cancer. This comprehensive review outlines this therapy from its infancy through to the present day, bringing to light modifications and optimizations to the traditional workflow, as well as highlighting the influence of new methods and technologies.

2016 ◽  
Vol 34 (20) ◽  
pp. 2389-2397 ◽  
Author(s):  
Stephanie L. Goff ◽  
Mark E. Dudley ◽  
Deborah E. Citrin ◽  
Robert P. Somerville ◽  
John R. Wunderlich ◽  
...  

Purpose Adoptive cell transfer, the infusion of large numbers of activated autologous lymphocytes, can mediate objective tumor regression in a majority of patients with metastatic melanoma (52 of 93; 56%). Addition and intensification of total body irradiation (TBI) to the preparative lymphodepleting chemotherapy regimen in sequential trials improved objective partial and complete response (CR) rates. Here, we evaluated the importance of adding TBI to the adoptive transfer of tumor-infiltrating lymphocytes (TIL) in a randomized fashion. Patients and Methods A total of 101 patients with metastatic melanoma, including 76 patients with M1c disease, were randomly assigned to receive nonmyeloablative chemotherapy with or without 1,200 cGy TBI before transfer of tumor-infiltrating lymphcytes. Primary end points were CR rate (as defined by Response Evaluation Criteria in Solid Tumors v1.0) and overall survival (OS). Clinical and laboratory data were analyzed for correlates of response. Results CR rates were 24% in both groups (12 of 50 v 12 of 51), and OS was also similar (median OS, 38.2 v 36.6 months; hazard ratio, 1.11; 95% CI, 0.65 to 1.91; P = .71). Thrombotic microangiopathy was an adverse event unique to the TBI arm and occurred in 13 of 48 treated patients. With a median potential follow-up of 40.9 months, only one of 24 patients who achieved a CR recurred. Conclusion Adoptive cell transfer can mediate durable complete regressions in 24% of patients with metastatic melanoma, with median survival > 3 years. Results were similar using chemotherapy preparative regimens with or without addition of TBI.


2017 ◽  
Vol 35 (7_suppl) ◽  
pp. 145-145
Author(s):  
Juhua Zhou ◽  
Yin Zhong ◽  
Zhongjun Hou ◽  
Jianzhong Zhang ◽  
Yanmin Li ◽  
...  

145 Background: Clinical trials have shown that adoptive cell transfer therapy is a promising method for cancer treatment. In the current study, we aim to generate and characterize anti-tumor tumor-infiltrating lymphocytes from patients with breast cancer for adoptive cell transfer therapy. Methods: In vitro culture method was used to generate anti-tumor, tumor-infiltrating lymphocytes from patients with breast cancer. FACS analysis, ELISA, and Elispot assay were used to characterize tumor-infiltrating lymphocytes. Autologous anti-tumor tumor-infiltrating lymphocytes from patients with breast cancer were used in adoptive cell transfer therapy. Results: FACS analysis indicated that tumor-infiltrating lymphocytes were present in the tumor tissues, but not detectable in the normal breast tissues from patients with breast cancer. Tumor-infiltrating lymphocytes could be generated in vitro from fresh tumor specimens of patients with breast cancer. Both CD4 T cells and CD8 T cells were detected in tumor-infiltrating lymphocytes. Autologous tumor cells could also generate in vitro from fresh tumor tissue samples of patients with breast cancer. Among 22 samples screened, 6 samples (25%) of tumor-infiltrating lymphocytes are tumor-reactive. Anti-tumor, tumor-infiltrating lymphocytes could recognize autologous tumor cells and allogenic tumor cells. After a large scale T cell expansion, anti-tumor reactivity was maintained in tumor-infiltrating lymphocytes. All of tumor-infiltrating lymphocytes were NK cells in some samples from patients with breast cancer, and these NK cells could recognize autologous tumor cells and a panel of allogenic tumor cells. T cell cloning assay demonstrated that some of the tumor-reactive, tumor-infiltrating lymphocytes were CD4 T cells. Conclusions: The results suggest that anti-tumor, tumor-infiltrating lymphocytes may be generated from patients with breast cancer, which may be used in clinical applications of adoptive cell transfer therapy for patients with breast cancer. The clinical trial of adoptive cell transfer therapy using autologous anti-tumor tumor-infiltrating lymphocytes for patients with breast is under way.


2017 ◽  
Vol 35 (7_suppl) ◽  
pp. 138-138 ◽  
Author(s):  
Marie-Andree Forget ◽  
Cara L. Haymaker ◽  
Kenneth R. Hess ◽  
Jason Roszik ◽  
Scott Eric Woodman ◽  
...  

138 Background: Adoptive cell therapy (ACT) of autologous tumor-infiltrating lymphocytes (TIL) can produce long lasting treatment responses in patients (pts) with metastatic melanoma. In our initial report of 31 treated pts, we demonstrated overall response rate (ORR) of 48%. Due to the evolution of treatment options for metastatic melanoma with heavy reliance on immunomodulatory therapies, we sought to re-evaluate responses in the era of checkpoint blockade. Methods: Pts receive treatment consisting of 7 days of lymphodepleting chemotherapy consisting of cyclophosphamide and fludarabine. High dose interleukin-2 (720,000 IU/kg IV q 8 hrs up to 15 doses) was infused after TIL infusion. Responses were assessed by imaging per irRC. Results: A total of 74 pts have been treated in our initial TIL study with an updated ORR assessment of 43%. Stratification of pts according to their checkpoint blockade immune-modulator therapy prior to TIL ACT, demonstrated that prior Ipilimumab (Ipi) decreased ORR to 33% compared to 51% in checkpoint naïve pts and decreased overall survival (OS) post-TIL therapy (median 7.7 vs 24.6 months respectively). There were too few pts to assess the impact of anti-PD1 as a single agent. A multiparametric analysis revealed that LDH levels at the time of therapy mainly influences OS and ORR to TIL but still could not invalidate the impact of Ipi prior to TIL ACT. The durability of the response was also found to be different between the 2 groups (30% for Ipi prior and 50% No Ipi prior). This new reality also impacted previously reported parameters that correlated with ORR to TIL ACT such as the expression of B-and-T lymphocyte attenuator (BTLA) on CD8+ TIL. Interestingly, assessment of mutation load (ML) of the tumors prior to TIL ACT showed that the check point naïve group display a high ML ( > 100) within their tumor whereas some patients who had Ipi prior to TIL have a low ML ( < 100). Conclusions: Our preliminary analysis shows that pre-treatment with Ipi decreases ORR to TIL ACT. Understanding how prior ipi modifies TIL, the tumor and microenvironment will help to define the full extent of the impact and how to best treat Ipi refractory pts with TIL. Clinical trial information: NCT00338377.


2013 ◽  
Vol 31 (17) ◽  
pp. 2152-2159 ◽  
Author(s):  
Mark E. Dudley ◽  
Colin A. Gross ◽  
Robert P.T. Somerville ◽  
Young Hong ◽  
Nicholas P. Schaub ◽  
...  

Purpose Adoptive cell therapy (ACT) with autologous tumor-infiltrating lymphocytes (TILs) and high-dose interleukin-2 (IL-2) administered to lymphodepleted patients with melanoma can cause durable tumor regressions. The optimal TIL product for ACT is unknown. Patients and Methods Patients with metastatic melanoma were prospectively assigned to receive unselected young TILs versus CD8+-enriched TILs. All patients received lymphodepleting chemotherapy and high-dose IL-2 therapy and were assessed for response, toxicity, survival, and immunologic end points. Results Thirty-four patients received unselected young TILs with a median of 8.0% CD4+ lymphocytes, and 35 patients received CD8+-enriched TILs with a median of 0.3% CD4+ lymphocytes. One month after TIL infusion, patients who received CD8+-enriched TILs had significantly fewer CD4+ peripheral blood lymphocytes (P = .01). Twelve patients responded to therapy with unselected young TILs (according to Response Evaluation Criteria in Solid Tumors [RECIST]), and seven patients responded to CD8+-enriched TILs (35% v 20%; not significant). Retrospective studies showed a significant association between response to treatment and interferon gamma secretion by the infused TILs in response to autologous tumor (P = .04), and in the subgroup of patients who received TILs from subcutaneous tumors, eight of 15 patients receiving unselected young TILs responded but none of eight patients receiving CD8+-enriched TILs responded. Conclusion A randomized selection design trial was feasible for improving individualized TIL therapy. Since the evidence indicates that CD8+-enriched TILs are not more potent therapeutically and they are more laborious to prepare, future studies should focus on unselected young TILs.


2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Mélanie Saint-Jean ◽  
Anne-Chantal Knol ◽  
Christelle Volteau ◽  
Gaëlle Quéreux ◽  
Lucie Peuvrel ◽  
...  

Immunotherapy for melanoma includes adoptive cell therapy with autologous tumor-infiltrating lymphocytes (TILs). This monocenter retrospective study was undertaken to evaluate the efficacy and safety of this treatment of patients with advanced melanoma. All advanced melanoma patients treated with TILs using the same TIL expansion methodology and same treatment interleukin-2 (IL-2) regimen between 2009 and 2012 were included. After sterile intralesional excision of a cutaneous or subcutaneous metastasis, TILs were produced according to a previously described method and then infused into the patient who also received a complementary subcutaneous IL-2 regimen. Nine women and 1 man were treated for unresectable stage IIIC (n=4) or IV (n=6) melanoma. All but 1 patient with unresectable stage III melanoma (1st line) had received at least 2 previous treatments, including anti-CTLA-4 antibody for 4. The number of TILs infused ranged from 0.23 × 109 to 22.9 × 109. Regarding safety, no serious adverse effect was reported. Therapeutic responses included a complete remission, a partial remission, 2 stabilizations, and 6 progressions. Among these 4 patients with clinical benefit, 1 is still alive with 9 years of follow-up and 1 died from another cause after 8 years of follow-up. Notably, patients treated with high percentages of CD4 + CD25 + CD127lowFoxp3+ T cells among their TILs had significantly shorter OS. The therapeutic effect of combining TILs with new immunotherapies needs further investigation.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. TPS2648-TPS2648
Author(s):  
Jason Alan Chesney ◽  
Jose Lutzky ◽  
Sajeve Samuel Thomas ◽  
Jorge J. Nieva ◽  
Eva Munoz Couselo ◽  
...  

TPS2648 Background: Adoptive cell therapy (ACT) with tumor infiltrating lymphocytes (TIL) has demonstrated durable complete responses in immunogenic tumors with high mutational burden in metastatic melanoma patients who had not received prior immune checkpoint inhibitors (ICI); CR rate 24%. Pembrolizumab is an approved agent for the treatment of metastatic melanoma and head & neck cancers, among others. Further, ICI have been reported to potentially enhance the efficacy of TIL therapy. One aim of this study is to improve the efficacy response for early line patients by combining TIL with anti-PD-1 in ICI-naïve patients with metastatic melanoma (Cohort 1) and head & neck cancers (Cohorts 2). In Cohort 3, TIL therapy alone is offered to NSCLC patients who have received prior systemic therapy, including ICI. Methods: IOV-COM-202 is a prospective, Phase 2 multicenter, open-label study in which 36 patients (12 per cohort) are to be enrolled in one of three cohorts; Cohorts 1 and 2: TIL therapy in combination with pembrolizumab, or Cohort 3: TIL therapy alone. Patients will have tumors resected at local centers and shipped to a central GMP facility to undergo a 22-day manufacturing process that yields cryopreserved infusion product (LN-144/LN-145) that is shipped back to treating center. All patients receive TIL therapy consisting of 1 week of preconditioning cyclophosphamide/fludarabine, followed by a single infusion of LN-144/LN-145 (Day 0) and up to 6 doses of IL-2 (600,000 IU/kg). Patients in Cohorts 1 and 2 also receive pembrolizumab on Day -1 and then Q3W for up to 2 years or until disease progression or acceptable toxicity. Co-primary endpoints for each cohort are objective response rate (ORR) per RECIST 1.1, and safety (grade ≥ 3 TEAE). Eligibility criteria: Cohorts 1 (melanoma) and 2 (head & neck): patients must not have received prior ICI (eg, anti-PD-1, anti-CTLA-4) and may have received up to 3 lines of prior systemic therapy, Cohort 3 (NSCLC): patients must have received 1-3 prior lines of systemic therapy including ICI. After tumor resection for TIL manufacturing, patients must have additional measurable disease for assessment per RECIST 1.1. Adequate bone marrow/organ function and ECOG PS of 0 or 1 is required. Clinical trial information: NCT03645928.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 2574-2574
Author(s):  
Eva Ellebaek ◽  
Trine Zeeberg Iversen ◽  
Niels Junker ◽  
Marco Donia ◽  
Lotte Engell-Noerregaard ◽  
...  

2574 Background: Adoptive T cell therapy is based on isolation of tumor infiltrating lymphocytes (TIL) from autologous tumor, in vitro activation and expansion, and the reinfusion of these cells into a lymphodepleted patient. Together with high-dose interleukin (IL)-2 this treatment has in a few other countries successively been given to patients with advanced malignant melanoma and an impressive 50% response rate has been observed. Here we report the experience from a Danish Translational Research Center using low-dose subcutaneous IL-2 injections. Methods: A pilot trial including patients with metastatic melanoma, PS ≤1, age <70, measurable and progressive disease, and no CNS involvement. Six patients were treated with lymphodepleting chemotherapy, TIL infusion, and 14 days of low-dose IL-2, 2 MIU/day. Results: Low-dose IL-2 considerably decreased the toxicity of the treatment with no grade 3-4 events related to this drug. Two of the 6 treated patients have an ongoing complete response (30+ and 7+ months), 2 patients had stable disease (4.5 and 5 months) and 2 patients progressed shortly after treatment. Five patients went through surgery but were not treated because of rapid disease progression (2), development of brain metastases (2) or the inability to grow cells (1). Tumor-reactivity of the infused cells and peripheral monocytes before and after therapy were analyzed. High tumor responses in the infusion products were correlated to clinical response and also an induction of tumor reactive T cells were seen in the peripheral blood for 1 patient in complete response. Conclusions: Complete and durable responses are induced after treatment with adoptive cell transfer in combination with low-dose IL-2 questioning the need for high and toxic doses of IL-2.


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