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Ontosight Newsletter Issue 18

Ontosight Newsletter Issue 18

Ontosight – Newsletter

January 13th – January 26th, 2025 – Issue 18


Welcome to the 18th edition of Ontosight Newsletter! This issue highlights breakthroughs in cancer research, neuroscience, infectious diseases, metabolic disorders, and emerging therapies. Discover novel immune evasion mechanisms, AI-driven drug discovery, biomarker-based dementia classification, advances in diabetes care, and cutting-edge regenerative medicine. Stay updated on the latest in healthcare innovation!


Featured Articles

1. Cancer Research and Treatments

  • Immune evasion through mitochondrial transfer in the tumour microenvironment

This study uncovers a novel immune evasion mechanism in which cancer cells transfer mutated mitochondria to tumor-infiltrating lymphocytes (TILs), impairing their antitumor function. These transferred mitochondria inhibit mitophagy in TILs, leading to metabolic dysfunction and immune suppression. The findings suggest that mitochondrial DNA mutations in tumors are linked to poorer outcomes for immune checkpoint inhibitors, highlighting a potential target for improving cancer immunotherapy Read More.


  • Adjuvant Chemotherapy After Resection of Localized Pancreatic Adenocarcinoma Following Preoperative FOLFIRINOX

This study found that adjuvant chemotherapy, particularly (m)FOLFIRINOX or other multiagent regimens, significantly improved overall survival (OS) after resection of pancreatic adenocarcinoma following preoperative (m)FOLFIRINOX. However, the benefit was lower in patients who received 8 or more preoperative cycles, had a radiological response, or had ypN0 disease. Single-agent adjuvant chemotherapy did not show a significant OS benefit, highlighting the importance of multiagent regimens Read More.


  • Improved Efficacy of Triple-Negative Breast Cancer Immunotherapy via Hydrogel-Based Co-Delivery of CAR-T Cells and Mitophagy Agonist

This study highlights that poor CAR-T cell infiltration and functional exhaustion limit their efficacy in solid tumors like TNBC. AI-screened mitophagy agonist BC1618 enhances CAR-T function by improving mitochondrial health. Injectable hydrogels for co-delivery of CAR-T cells and BC1618 create a favorable tumor microenvironment, boosting antitumor response and treatment effectiveness Read More.


  • Quantum-Computing-Enhanced Algorithm Unveils Potential KRAS Inhibitors

This study presents a quantum–classical generative model for designing KRAS inhibitors for cancer therapy. The approach led to the synthesis of 15 molecules, with two showing promise as potential inhibitors. The findings highlight quantum computing’s potential in drug discovery, outperforming classical models in generating validated hits Read More.


2. Neuroscience and Brain Health

  • Identification of the subventricular tegmental nucleus as brainstem reward center

This study identifies the subventricular tegmental nucleus (SVTg) as a brainstem reward center involved in motivation and emotional regulation. In mice, SVTg activation induces reward behaviors, reduces anxiety, and promotes dopamine release while inhibiting the depression-linked lateral habenula. Findings in rats, monkeys, and humans suggest SVTg as a key hub for reward processing and mental health Read More.


  • Depressive Symptoms and Amyloid Pathology

This large-scale study examined the link between depressive symptoms and amyloid pathology in older adults without dementia. Depressive symptoms were not associated with increased amyloid pathology in cognitively normal individuals and were linked to a lower likelihood of amyloid pathology in those with mild cognitive impairment. Findings suggest that mechanisms other than amyloid accumulation may underlie late-life depression Read More.


  • Polygenic Risk Discriminates Lewy Body Dementia From Alzheimer's Disease

This study explored genetic and biomarker-based classification of Alzheimer's disease (AD) and Lewy body dementia (LBD). AD polygenic risk scores (PRS) without APOE performed similarly to plasma p-tau181 in distinguishing AD from LBD and controls. Amyloid beta positivity in LBD was linked to APOE but not AD-PRS or p-tau181. Combining AD-PRS, APOE, and p-tau181 improved diagnostic accuracy, highlighting their complementary roles in disease classification Read More.


  • Predicting survival in brain metastases using radiomic tumor heterogeneity signatures

This study developed an interpretable model integrating radiomic features and RNA sequencing data to predict survival in NSCLC patients with brain metastases. The model demonstrated strong predictive performance, achieving high AUC and C-index values. RNA sequencing revealed immune-related pathway enrichment in low-risk patients, with increased CD8+ T-cell infiltration, suggesting a favorable tumor microenvironment. These findings support personalized treatment strategies based on radiomics and transcriptomics Read More.


3. Infectious Diseases and Immunology

  • Structure-guided discovery of viral proteins that inhibit host immunity

This study develops a systematic approach to identify viral proteins that inhibit host immune defenses. By screening phage-encoded inhibitors of bacterial Thoeris and CBASS immune systems, researchers uncover seven inhibitor families that block immune protein active sites. Notably, some phage inhibitors can also suppress human and plant immune pathways, highlighting phages as a reservoir of immune-modulatory proteins with broad cross-species effects Read More.


  • Mitochondrial respiratory complex III sustains IL-10 production and promotes tumor immune evasion

This study identifies a link between mitochondrial complex III-dependent ROS production and IL-10 regulation in macrophages. Inhibiting ROS production with S3QEL 1.2 suppresses IL-10 by downregulating c-Fos, reducing tumor-supportive immunosuppression. In vivo, this approach lowers tumor growth and improves survival in melanoma-bearing mice, suggesting a potential strategy to enhance antitumor immunity Read More.


  • Neutrophil extracellular traps (NETs) are increased in rheumatoid arthritis-associated interstitial lung disease

This study explores the role of neutrophil extracellular traps (NETs) in rheumatoid arthritis-associated interstitial lung disease (RA-ILD). It finds that NET formation, influenced by NR4A3, drives myofibroblast differentiation, contributing to lung fibrosis. Elevated plasma NET markers correlate with RA-ILD subtypes, highlighting NETs as potential therapeutic targets Read More.


  • Human Metapneumovirus: an emerging respiratory pathogen and the urgent need for improved diagnostics, surveillance, and vaccine development

Human Metapneumovirus (HMPV) is a major cause of respiratory infections, particularly affecting vulnerable populations. Its symptoms overlap with RSV and COVID-19, complicating diagnosis, especially in low-resource settings. With no approved vaccines or antivirals, improved surveillance, scalable diagnostics, and AI-driven research are crucial for future outbreak preparedness Read More.


4. Metabolic Disorders and Endocrinology

  • How Health Systems Worldwide Fail Type 2 Diabetics

Health systems have failed to curb the rise of type 2 diabetes (T2DM), with cases quadrupling to 422 million by 2014 despite known causes and treatments. Key shortcomings include delayed detection, poor understanding of lifestyle factors, and policies that subsidize unhealthy behaviors. Addressing these systemic failures requires urgent national and global action to overcome political and economic barriers Read More.


  • Extracellular vesicle-mediated VEGF-A mRNA delivery rescues ischemic injury with low immunogenicity

VEGF-A gene therapy using extracellular vesicles (EVs) shows promise for treating ischemic vascular disease, offering efficient delivery with minimal immune response. Unlike viral vector approaches, EV-based therapy enhances neovascularization, improves arterial perfusion, and accelerates wound healing, making it a viable alternative for future clinical applications Read More.


  • Supplementation with essential amino acids improves body cell mass and reduces inflammation after ketogenic therapy

Supplementing with essential amino acids (EAAs) during the post-ketogenic transition phase of very low-energy ketogenic therapy (VLEKT) enhances fat loss, muscle strength, and reduces inflammation. These findings suggest EAAs help counteract potential drawbacks of carbohydrate reintroduction, improving long-term metabolic and body composition outcomes Read More.


  • Effects of the Mediterranean Diet on Metabolic Syndrome Components and Cardiometabolic Risk

The Mediterranean diet effectively mitigates metabolic syndrome by reducing central obesity, improving lipid profiles, enhancing insulin sensitivity, and lowering blood pressure. Its anti-inflammatory and antioxidant properties, derived from unsaturated fats, polyphenols, and fiber, contribute to better metabolic health. Combined with lifestyle changes like increased physical activity, this dietary approach offers a sustainable strategy for reducing cardiometabolic risk and preventing chronic diseases Read More.


5. Emerging Therapies, Regenerative Medicine, and Precision Diagnostics

  • Nanodrugs targeting ferroptosis regulation for osteoarthritis treatment

Osteoarthritis (OA) progression is linked to ferroptosis, making its regulation a promising therapeutic target. This study develops ROS-responsive Ce@D&P nanoparticles (NPs) that reduce ROS, mitigate inflammation, and inhibit ferroptosis in chondrocytes. Mechanistically, Ce@D&P NPs regulate oxidative stress and lipid metabolism, improving extracellular matrix balance. In a mouse OA model, intra-articular injection of Ce@D&P NPs alleviates cartilage damage and slows disease progression Read More.


  • Machine Learning to Predict Mortality in Older Cancer Patients

The Geriatric Cancer Scoring System (GCSS) was developed and externally validated to improve 12-month mortality prediction in older cancer patients using machine learning. Based on data from two French cohorts, key predictors included oncologic, geriatric, and biomarker factors, with the Random Survival Forest (RSF) model achieving the highest predictive accuracy (tAUC: 0.87). GCSS outperformed traditional models and may enhance personalized prognosis and treatment decisions. Further validation in international settings is needed to confirm its generalizability Read More.


  • Biomolecular Microneedle Initiates Fe(3)O(4)/MXene Heterojunction-Mediated Nanozyme-Like Reactions and Bacterial Ferroptosis to Repair Diabetic Wounds

This study develops a Fe₃O₄/MXene (FM) heterojunction that modulates ROS levels to enhance wound healing in diabetes. The FM heterojunction scavenges extracellular ROS while inducing bacterial ferroptosis by releasing iron ions. Incorporated into a GelMA-based microneedle (GFM), it promotes skin regeneration in infected diabetic wounds. The GFM microneedle, combined with photothermal therapy, demonstrates efficacy comparable to commercial wound dressings Read More.


  • N-Cadherin promotes cardiac regeneration by potentiating pro-mitotic β-Catenin signaling in cardiomyocytes

This study identifies N-Cadherin as a key regulator of cardiomyocyte (CM) proliferation and heart regeneration. Its expression decreases with age but is upregulated in neonatal hearts post-injury, enhancing CM mitotic activity. N-Cadherin stabilizes β-Catenin to promote CM renewal, and its overexpression improves cardiac regeneration in adult mice. Targeting N-Cadherin may offer a promising strategy for heart repair after injury Read More.


  • Stratification System With Dual Human Endogenous Retroviruses for Predicting Immunotherapy Efficacy in Metastatic Clear-Cell Renal Cell Carcinoma

This study identifies two endogenous retrovirus (ERV) elements as key predictors of immune checkpoint inhibitor (ICI) response in metastatic clear-cell renal cell carcinoma (ccRCC). A dual ERV-based stratification system effectively categorizes patient risk and correlates with treatment outcomes. High-response ERV profiles show endothelial infiltration, while resistance is linked to immune suppressive cells and T-cell exhaustion. This ERV model outperforms traditional transcriptomic markers and may enhance precision oncology strategies Read More.


Additional Highlights

Explore more groundbreaking research and regulatory updates in our biweekly newsletter:


  • α-Synuclein Deposition in the Kidney May Contribute to Parkinson's Disease
  • Roche receives FDA clearance with CLIA waiver for cobas® liat molecular tests to diagnose sexually transmitted infections at the point of care
  • Stealth BioTherapeutics Announces PDUFA Action Date Extension for Elamipretide to Treat Patients with Barth Syndrome

Company NameDrug NameRegulatory BodyApproval TypeDiseaseLink
AstraZeneca and Daiichi Sankyo Datopotamab Deruxtecan (Dato-DXd)FDAPriority ReviewLocally advanced or metastatic EGFR-mutated non-small cell lung cancer (NSCLC)Link
Eisai and Biogen LEQEMBI® (lecanemab-irmb)FDABiologics License ApplicationSubcutaneous Maintenance Dosing for the Treatment of Early Alzheimer’s DiseaseLink
Biogen Nusinersen (higher dose regimen)FDA, EMAsNDA (Supplemental New Drug Application), EMA validated sNDASpinal muscular atrophy (SMA)Link
Eisai and Biogen LEQEMBI® (lecanemab-irmb)FDASupplemental Biologics License Application (sBLA) Early Alzheimer’s DiseaseLink
Eli Lilly and Company Omvoh® (mirikizumab-mrkz)FDA Marketing Approval Moderately to severely active Crohn’s disease (IBD) in adultsLink
AstraZeneca Calquence (acalabrutinib) + bendamustine + rituximabFDA Marketing Approval Previously untreated mantle cell lymphoma (MCL) in adults, ineligible for autologous hematopoietic stem cell transplantationLink
AstraZeneca Datroway (datopotamab deruxtecan) FDA Marketing Approval Previously treated metastatic HR-positive, HER2-negative breast cancerLink
Amgen LUMAKRAS® (sotorasib) + Vectibix® (panitumumab)FDA Marketing Approval Adult patients with KRAS G12C-mutated metastatic colorectal cancer (mCRC)Link
Arrowhead Pharmaceuticals Plozasiran FDA NDA Approval Familial chylomicronemia syndrome (FCS), a severe and rare genetic diseaseLink
GSK Jemperli® (dostarlimab) European Commission (EU) Marketing Approval First-line treatment of primary advanced or recurrent endometrial cancer in adults, including those with MMRp/MSS tumors, in combination with chemotherapy (carboplatin and paclitaxel)Link
Bluejay Therapeutics Brelovitug (BJT-778)FDABreakthrough Therapy Designation Chronic Hepatitis DeltaLink
Johnson & Johnson LAZCLUZE® (lazertinib) + RYBREVANT® (amivantamab)European Commission (EU)Marketing Approval First-line treatment of advanced non-small cell lung cancer (NSCLC) with EGFR exon 19 deletions (ex19del) or exon 21 L858R mutationsLink
Johnson & Johnson SPRAVATO® (esketamine) FDA Supplemental NDA (sNDA) Approval Major depressive disorder (MDD) in adults with treatment-resistant depressionLink
Atara Biotherapeutics EBVALLO™ (tabelecleucel)FDAClinical Hold on Investigational New Drug (IND) Epstein-Barr virus positive post-transplant lymphoproliferative disease (EBV+ PTLD)Link
Atara Biotherapeutics ATA3219 (CD19-targeted CAR-T)FDAClinical Hold on Investigational New Drug (IND) Non-Hodgkin’s lymphoma and systemic lupus erythematosusLink
Lupin Limited Abacavir, Dolutegravir, and Lamivudine TabletsFDA Tentative Approval under PEPFAR for its Abbreviated New Drug Application HIV-1 infectionLink
Lupin Limited Sacubitril and Valsartan TabletsFDAAbbreviated New Drug Application (ANDA)Reduce cardiovascular death and hospitalization in adults with chronic heart failure. Treat symptomatic heart failure in pediatric patients aged 1 year and older.Link
Zai Lab KarXTChina’s NMPA NDA Approval Schizophrenia in adultsLink
Zai Lab ZL-1310 (DLL3 ADC)FDAOrphan Drug Designation Small Cell Lung Cancer (SCLC)Link

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