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Evaluation of Knowledge About Human Papillomavirus and Vaccination Among Women Screened for Cervical Cancer.

BACKGROUND: In Turkiye, every sexually active woman between the ages of 30 and 65 is screened for cervical cancer free of charge every five years. However, the Human papillomavirus (HPV) vaccine has not yet been included in the national vaccination calendar. AIMS: This study aimed to determine the knowledge of women screened for cervical cancer about HPV and the HPV vaccine. METHODS: In this cross-sectional study, a questionnaire consisting of a demographic information form, HPV vaccination status, and the HPV Knowledge Scale was administered to women aged 30-65. The scale has three subscale

Boosting mRNA cancer vaccine efficacy via targeting Irg1 on macrophages in lymph nodes.

Rationale: mRNA cancer vaccines show great promise for tumor therapy, but the therapeutic efficacy is limited. Metabolites play critical roles in immunomodulation. However, their role in mRNA cancer vaccines remains poorly understood. Methods: Metabolome analysis and single-cell RNA sequence were performed to explore the most important metabolite and its source cell. B16-F10-OVA-bearing wide-type and Irg1-depleted C57BL/6 mice were treated with OVA-LNP, OVA&si-Irg1-LNP, or anti-PD-1 antibody to evaluate therapeutic efficacy. Flow cytometry analysis was used to examine the immune cells within t…

Engineering STING Nanoadjuvants for spatiotemporally-tailored innate immunity stimulation and cancer vaccination therapy.

Spatiotemporally-tailored activation of dendritic cells (DC) in lymph nodes (LN) remains a critical challenge for effective cancer vaccination therapy. In this study, we show that photo/sonodynamic effect can trigger the nuclear transcription factor-kappa B (NF-κB) and stimulator of interferon genes (STING) pathways activation in DC. We engineers a library of spatiotemporally-tailored STING nanoadjuvants (SNA) by conjugating the photo/sonosensitizer and STING agonist onto the biodegradable polypeptide, and co-assembling with charge-modified polypeptides. The combination of antigen-loaded SNA v

Macroporous hydrogel-based mRNA cancer vaccine for in situ recruitment and modulation of dendritic cells.

mRNA-based vaccines have demonstrated tremendous success in the era of covid-19, but their full potential for cancer treatment awaits to be … venue to enhancing the antitumor efficacy of mRNA vaccines. STATEMENT OF SIGNIFICANCE: Current mRNA cancer vaccines are typically formulated by incorporating tumor antigen-encoding mRNAs into lipid nanoparticles (LNPs) or condensing them with cationic polymers or lipids, which are then directly administered into the body. These formulations rely on the passive up …

HPV vaccination and malignancy risks beyond cervical cancer: A retrospective global cohort study.

While HPV vaccination is well established for the prevention of cervical cancer, its broader oncological effects remain insufficiently characterized. Emerging evidence suggests potential protective effects against non-cervical malignancies; however, comprehensive long-term data are limited. We conducted a global, retrospective cohort study utilizing electronic health records from the TriNetX network. Individuals vaccinated against HPV at age 8 years or older were propensity score-matched to unvaccinated controls. Outcomes included the incidence of malignancies in the head-and-neck, gastrointes

Cell membrane vaccine delivery system: A review of the recent advances against breast cancer.

Natural cells exhibit unique properties, such as homotypic targeting and prolonged circulation in the bloodstream, making them attractive ca … s on the use of cell-derived biomimetic nanotechnology for breast cancer. It also highlights breast cancer vaccines under development encompass protein-based (e.g., peptide vaccines), nucleic acid-based (DNA and RNA vaccines), immune cell-based (including dendritic cell and autologous tumor cell vaccines), and bacterial/viral vector-based vaccines. Each platform …

Therapeutic Vaccines for Hematological Cancers: A Scoping Review of This Immunotherapeutic Approach as Alternative to the Treatment of These Malignancies.

Background/Objectives: The need for innovative cancer treatments has brought immunotherapies to the forefront as a promising approach, with therapeutic vaccines demonstrating the potential to mobilize immune cells to eliminate tumor cells. However, challenges such as genetic variability among patients, immune evasion mechanisms, and disease relapse contribute to the complexity of achieving an ideal therapy, especially for hematological cancers. This review systematically identifies and analyzes recent studies focused on the development of therapeutic immunotherapy vaccines, examining critical

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… The primary focus of these studies is to evaluate the potential of cancer vaccines to improve prognosis and overall survival. … A Clinical Development Paradigm for Cancer Vaccines and Related Biologics J. Immunother. 2007 30 1 15 10.1097/01.cji.0000211341.88835.ae 17198079 16. Kudrin A. Cancer Vaccines: What Do We Need to Measure in Clinical Trials? Hum. Vaccin. …

Polypeptide sono-adjuvant for ultrasound-activatable regulation of innate immunity and cancer vaccination therapy.

Spatiotemporally-controllable regulation of innate immunity in lymph node remains a critical challenge to implement effective cancer vaccination. Here we report an ultrasound-activatable strategy to precisely stimulate innate immunity activation in vivo. Mechanistically, ultrasound-triggered mechanical and oxidative forces synchronously activate innate immune pathways in antigen-presenting cells via calcium ion influx and mitochondria DNA release. We next design a polypeptide sono-adjuvant (SONA) library with adjustable physicochemical properties for lymph node-targeting delivery. The top-perf

Bladder cancer immunotherapy parallel advances in BCG optimization and next-generation vaccine platforms.

Bladder cancer (BCa) remains a significant global health challenge with rising incidence and suboptimal outcomes in advanced stages. Although immunotherapy for urological cancers is not a new treatment, recent clinical advances have confirmed the value of immunotherapy as a urological cancer treatment. In the field of cancer immunotherapy, increasing attention has been focused on the use of cancer vaccines that activate T cells to target growing tumors. Despite Bacillus Calmette-Guérin (BCG) intravesical immunotherapy serving as the first-line treatment for non-muscle-invasive bladder cancer (…

Xenogeneic Testicular Cell Vaccination Induces Long-Term Anti-Cancer Immunity in Mice.

Cancer/testis antigen (CTA) gene products are expressed in most malignant tumours, while under normal conditions their expression is primarily restricted to testicular cells. In this study, we investigated the prophylactic application of a xenogeneic (ram-derived) testicular cell (TC) vaccine for cancer prevention in an experimental animal model. C57BL/6 mice were immunised three times with either xenogeneic (ram) or syngeneic (mouse) formaldehyde-fixed spermatogenic tissue-derived cells. Following vaccination, mice were implanted with live B16 melanoma or LLC carcinoma cells. Tumour-bearing m

The indirect costs and burden of vaccine-preventable cancers premature mortality in Asia-Pacific countries.

BACKGROUND: Cancer is the second leading cause of death in the Asia-Pacific region. Human papillomavirus (HPV) and hepatitis B virus (HBV) are major cancer-causing infections. This analysis assessed the mortality impact and productivity losses due to HBV- and HPV-related cancers in ten Asia-Pacific countries. METHODS: Number of deaths and years of life lost (YLL) in 2019 were sourced from the Institute for Health Metrics Evaluation Global Burden of Disease for the following: HBV-related liver cancer, and HPV-related oral cavity, larynx, oropharynx, and cervical cancers (other HPV-related canc

Controlled trial of cervical cancer screening frequency among human-papillomavirus-vaccinated women.

Cervical screening frequency has not been studied in vaccinees. As the major risk factor, oncogenic human papillomavirus (HPV) is declining due to vaccination. We report a trial to assess the effectiveness of cervical screening frequency among women HPV-vaccinated as early adolescents (NCT02149030). In 2013, 5626 1992-1995-born women, who had received three doses of the HPV16/18 vaccine at ages 12-15 between 2007 and 2010 in a community-randomized vaccination trial (NCT00534638), were allocated at age 22 into high-intensity cytology-based cervical screening by even birth date (Arm A1) or into

Cationic nanogel-based nasal therapeutic HPV vaccine prevents the development of cervical cancer.

Therapeutic vaccines against cervical cancer caused by human papillomavirus (HPV) are still an unmet medical need, despite a prophylactic HPV vaccine being available, and the now-licensed systemic vaccines may have a limited effect on the reproductive tract. To specifically inhibit cervical cancer development, the concept of mucosal immunity based on the reproductive-respiratory axis was adopted to develop a nasal HPV therapeutic vaccine. We used a cationic nanogel for the nasal vaccine delivery system and targeted HPV16 E7, an oncoprotein in HPV-driven cervical cancer to demonstrate the feasi

Vaccination Strategies against HPV Infection and Cervical Cancer in China: A Transmission Modeling Study.

BackgroundCervical cancer, driven predominantly by persistent high-risk human papillomavirus (HPV) infection, ranks as the fourth most common malignancy in women worldwide. China faces barriers to achieving the World Health Organization (WHO) 2030 elimination targets due to low vaccination rates and complex demographics. Strategic intervention optimization is critical for accelerating elimination.MethodsWe developed an age-stratified deterministic compartmental model integrating demographic data and HPV transmission dynamics, capturing heterogeneity in age, sex, sexual activity, and interventi

Mathematical Assessment of the Roles of Vaccination and Pap Screening on the Burden of HPV and Related Cancers in Korea.

This study is based on using a novel sex-structured mathematical model to assess the effectiveness of vaccination and Pap screening against HPV and related cancers in South Korea. In addition to its disease-free equilibrium (DFE) being locally-asymptotically stable when the associated control reproduction number is less than one, the model could have one or three endemic equilibria, for a special case with negligible disease-induced mortality, if the reproduction number exceeds one. It's shown, using a Krasnoselskii sublinearity argument, that this special case has a unique and locally-asympto

Myeloid Cell-Triggered In Situ Cell Engineering for Robust Vaccine-Based Cancer Treatment.

Following the success of the dendritic cell (DC) vaccine, the cell-based tumor vaccine shows its promise as a vaccination strategy. Except for DC cells, targeting other immune cells, especially myeloid cells, is expected to address currently unmet clinical needs (e.g., tumor types, safety issues such as cytokine storms, and therapeutic benefits). Here, it is shown that an in situ injected macroporous myeloid cell adoptive scaffold (MAS) not only actively delivers antigens (Ags) that are triggered by scaffold-infiltrating cell surface thiol groups but also releases granulocyte-macrophage colony

Nanobody-liposomes as novel cancer vaccine platform to efficiently stimulate T cell immunity.

Cancer vaccines can be utilized in combination with checkpoint inhibitors to optimally stimulate the anti-tumor immune response. Uptake of vaccine antigen by antigen presenting cells (APCs) is a prerequisite for T cell priming, but often relies on non-specific mechanisms. Here, we have developed a novel vaccination strategy consisting of cancer antigen-containing liposomes conjugated with CD169- or DC-SIGN-specific nanobodies (single domain antibodies) to achieve specific uptake by APCs. Our studies demonstrate efficient nanobody liposome uptake by human and murine CD169+ and DC-SIGN+ APCs in …

Improving Vaccination Documentation Rates Among Patients With Breast Cancer Through Patient Outreach.

BACKGROUND: Patients with cancer are at high risk for infection-related morbidity and mortality; vaccinations reduce this burden. In 2021, vaccination documentation rates were low at an academic medical center breast clinic. OBJECTIVES: The purpose of this pilot quality improvement project was to evaluate an education intervention to increase vaccination documentation among patients with breast cancer. METHODS: During a 16-week period, the 4 Pillars™ Practice Transformation Program was implemented. The oncology nurse navigator assessed and documented vaccination history, discussed recommenda

Trichostatin A-modified vaccine provides superior protection against ovarian cancer formation and development.

More attention has been paid to immunotherapy for ovarian cancer and the development of tumor vaccines. We developed a trichostatin A (TSA)-modified tumor vaccine with potent immunomodulating activities that can inhibit the growth of ovarian cancer in rats and stimulate immune cell response in vivo. TSA-treated Nutu-19 cells inactivated by X-ray radiation were used as a tumor vaccine in rat ovarian cancer models. Prophylactic and therapeutic experiments were performed with TSA-modified tumor vaccine in rats. Flow cytometry and ELISpot assays were conducted to assess immune response. Immune cel

Identification of tumour antigens and immune subtypes in the development of an anti-cancer vaccine for endometrial carcinoma.

Therapeutic application of vaccines to endometrial carcinoma (EC) remains uncertain. In this study, we aimed to identify potential tumour antigens for use in the development of an anti-tumour mRNA vaccine and clarify immune subtypes and their characteristics for immunotherapeutic application in heterogeneous EC by integrating multi-omics data. Importantly, four potential tumour antigen candidates-PGR, RBPJ, PARVG and MSX1-were identified and significantly correlated with better overall survival, disease-free survival and distinct antigen-presenting cell infiltration in EC. In addition, two dif