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Across-cancer immune responses induced by nanovaccines or microvaccines to prevent different cancers and cancer metastasis

ABSTRACT: Cancer vaccines, reassembled from whole tumor tissue components, were applied to demonstrate the across-cancer immune responses, thanks to inducing pan-clones T cells immune responses. It is demonstrated that across-cancer immune responses among different types of cancers exist and can be induced by nanovaccines or microvaccines, which thus can prevent different types of cancers and cancer metastasis. In addition, ths study revealed that such across-cancer immune responses among different types of cancers is induced by the fact that many neoantigens are shared by different types of cancer cells.

ORGANISM(S): Mus Musculus

SUBMITTER: Mi Liu

PROVIDER: PXD037688 | iProX | Mon Oct 24 00:00:00 BST 2022

REPOSITORIES: iProX

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Across-cancer specific immune responses induced by nanovaccines or microvaccines to prevent different cancers and cancer metastasis.

Diao Lu L Ma Lin L Cheng Junping J Pan Yunzhi Y Peng Zuofu Z Zhang Lianjun L Xu Minghao M Li Yupei Y Zhang Xuenong X Jiang Honglv H Xu Guoqiang G Meng Fenghua F Zhong Zhiyuan Z Liu Mi M

iScience 20221104 12

Metastatic cancers and recurrent cancers are diverse, different from primary cancers, and organ-dependent. However, how strong are across-cancer immune responses among different types of cancers remain unclear. Herein, vaccines-encapsulated-whole-components-of-tumor-tissue (VEWCOTT) were applied to demonstrate the across-cancer immune responses, thanks to inducing pan-clones T-cell immune responses. Either lung-cancer-tissue- or melanoma-tissue-based VEWCOTT simultaneously prevented melanoma, lu ...[more]

PMID: 36437877

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Project description:Background:This study was a hypothesis generating exploration of genomic data collected at diagnosis for 19 patients, who later participated in a clinical trial. BRCA1/2 germline mutation related hereditary cancers are candidates for new immune therapeutic interventions. However, contrary to what is expected of tumors with compromised DNA repair, a prominent tumor mutation burden (TMB) in hereditary breast and ovarian cancers in this cohort, was not correlated with high global immune activity in their microenvironments. More information is needed about the relationship between genomic instability, phenotypes and immune microenvironments of BRCA1/2 related hereditary tumors in order to find appropriate markers of immune activity and the most effective anticancer immune strategies. Methods:Mining and statistical analyses of the original DNA and RNA sequencing data and data available from The Cancer Genome Atlas (TCGA) were performed using the R computing environment. To interpret the data, we have used published literature and web available resources such as Gene Ontology Tools, The Cancer immunome Atlas (TCIA) and the Cancer Research Institute iAtlas. Results: We found that BRCA1/2 germline related breast and ovarian cancers do not represent a unique phenotypic identity, but that they express a range of phenotypes similar to sporadic cancers. Importantly, BRCA2 germline mutation related breast tumors have a different profile of genomic instability compared to those related to BRCA1. However, all breast and ovarian BRCA1/2 related tumors are characterized by high homologous recombination deficiency (HRD) and low aneuploidy. Interestingly, all sporadic high grade serous ovarian cancers (HGSOC) and most of the subtypes of triple negative breast cancers (TNBC), but not other types of breast cancer, also express a high degree of HRD. Conclusion: : Tumor mutation burdon (TMB) is not associated with the magnitude of the immune response in hereditary BRCA1/2 related breast and ovarian cancers or in sporadic TNBC and sporadic HGSOC. Hereditary tumors express phenotypes as heterogenous as sporadic tumors with various degree of “BRCAness” and various characteristics of the immune microenvironments. The subtyping criteria developed for sporadic tumors can be applied for the classification of hereditary tumors and possibly also characterization of their immune microenvironment. A high HRD score may be a good candidate biomarker for response to platinum, and potentially PARP-inhibition.

Project description:Background: Drugs given to treat cancer (chemotherapy) can weaken the human immune system. But it can also become weaker because of aging. Interleukin (IL)-7, a molecule produced naturally in the body, can help improve the function of the immune system. Researchers want to study the effects of IL-7 on immune system function in two different groups of older people. One group will be people who have received vaccines before IL-7. The other group will be people who have received Vaccines after IL-7. Objectives: To evaluate the effect of IL-7 on the immune system responses to vaccines in older people following chemotherapy. Eligibility: People at least 60 years of age who have recently finished chemotherapy for breast, colon, or bladder cancer. Design: * People in the study will be screened with a physical examination, medical history, and blood tests. Other screening tests, such as tumor imaging, may also need to be performed. * Everyone will receive a series of five different vaccines commonly used to prevent diseases. We will compare the responses of people in Sequence 1 who will receive vaccines before IL-7 with the responses of people in Sequence 2 who received the same vaccines after IL-7. * The vaccines will be given randomly in two Arms at different times. * Arm 1: diphtheria and tetanus, polio, pneumonia (with two booster shots), hepatitis B (with two booster shots), and hepatitis A (with one booster shot), * Arm 2: hepatitis A (with one booster shot), hepatitis B (with two booster shots), pneumococcal (with two booster shots), diphtheria and tetanus, polio, pneumonia (with two booster shots) * There are 5 vaccines to be given to each subject, following one of two randomly assigned sequences of vaccine administration (Sequence 1 or Sequence 2). * The first vaccine arm contains the two diphtheria protein containing vaccines tetanus and diphtheria (Td) and pneumococcal conjugate 13 (PCV13) and polio. The second vaccine arm contains the Hepatitis A and Hepatitis B vaccines. Subjects will either get tetanus, diphtheria, polio, and pneumonia vaccines before IL-7 therapy (Sequence 1) or hepatitis A and hepatitis B vaccines before IL-7 therapy (Sequence 2). The response to vaccines will be evaluated 4 weeks after vaccination. This will be followed by IL-7 therapy, then administration of the other group of vaccines. Therefore, subjects on both arms will receive the same set of vaccines, just at different times with respect to IL-7 therapy.

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Across-cancer immune responses induced by nanovaccines or microvaccines to prevent different cancers and cancer metastasis

Publications

Across-cancer specific immune responses induced by nanovaccines or microvaccines to prevent different cancers and cancer metastasis.

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