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John Ebos

@ebos

Associate Prof. in Cancer Genetics at Roswell Park Comprehensive Cancer Center studying drug resistance, metastasis, the tumor microenvironment, immunecheckpoints, and angiogenesis. https://www.roswellpark.org/research/labs/ebos-lab

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24.11.2023
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Latest posts by John Ebos @ebos

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For readers interested in drug repurposing, this review summarizes the approaches, evaluates available in silico resources and presents case studies
www.nature.com/articles/s41...
rdcu.be/e60em

05.03.2026 14:58 πŸ‘ 1 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Thank you to the Sinclair Cancer Research Institute at Queens University for hosting my visit this week. It was fantastic to share our science from Roswell Park and to meet with so many investigators and trainees. @sinclaircri.bsky.social @queensuresearch.bsky.social @roswellpark.bsky.social

28.02.2026 16:21 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Temporal and spatial composition of the tumor microenvironment predicts response to immune checkpoint inhibition in metastatic TNBC - Nature Cancer Greenwald, Nederlof and colleagues developed a computational pipeline analyzing multiplex imaging data and established spatial patterns within breast cancer microenvironment that are predictive of imm...
23.02.2026 16:01 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Reconsidering adjuvant and perioperative immune-checkpoint inhibition: de-escalation, expansion and personalization - Nature Reviews Clinical Oncology Adjuvant therapy with anti-PD-L1 antibodies and other immune-checkpoint inhibitors (ICIs) is an established standard of care for many patients with surgically resected solid tumours. Nonetheless, the ...
23.02.2026 15:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Review @natrevdrugdiscov.nature.com
Therapeutic targeting of neuroimmune mechanisms in neurodegeneration
www.nature.com/articles/s41...

16.02.2026 19:12 πŸ‘ 22 πŸ” 6 πŸ’¬ 0 πŸ“Œ 1
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Time-of-day immunochemotherapy in nonsmall cell lung cancer: a randomized phase 3 trial - Nature Medicine In this randomized phase 3 trial, patients with treatment-naive stage III–IV nonsmall cell lung cancer who received sintilimab or pembrolizumab in combination with chemotherapy early in the day (befor...

www.nature.com/articles/s41...

03.02.2026 00:16 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1
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Hallmarks of cancerβ€”Then and now, and beyond Hanahan revisits the evolving framework of cancer hallmarks, synthesizing 25 years of conceptual refinement into a multidimensional view of tumor biology. This review highlights how aberrant capabilit...

Follow up to Doug Hanahan’s visionary article about the stages of cancer development from back in the 1990s

www.cell.com/cell/fulltex...

30.01.2026 19:30 πŸ‘ 29 πŸ” 13 πŸ’¬ 1 πŸ“Œ 0
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Thank you to the American Cancer Society for highlighting our lab, this means a great deal.

Please join the Making Strides Against Breast Cancer Fundraiser October 17, 2026

www.facebook.com/groups/makin...

22.01.2026 19:23 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Artificial intelligence agents in cancer research and oncology Nature Reviews Cancer - Artificial intelligence agents are autonomous systems that use large language models to reason and as such can perform complex, multistep tasks with minimal human oversight....

www.nature.com/articles/s41...

20.01.2026 21:07 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
The New England Journal of Medicine                     
ctDNA-Guided Adjuvant Atezolizumab in Muscle-Invasive Bladder Cancer 
A Research Summary based on Powles T et al. | 10.1056/NEJMoa2511885 | Published on October 20, 2025 

Visual representations of the patients in the trial and the treatments they were assigned.      

Read the full Research Summary at NEJM.org.

The New England Journal of Medicine ctDNA-Guided Adjuvant Atezolizumab in Muscle-Invasive Bladder Cancer A Research Summary based on Powles T et al. | 10.1056/NEJMoa2511885 | Published on October 20, 2025 Visual representations of the patients in the trial and the treatments they were assigned. Read the full Research Summary at NEJM.org.

In muscle-invasive bladder cancer, ctDNA-guided atezolizumab led to longer disease-free survival (9.9 vs. 4.8 months), as well as to longer overall survival (32.8 vs. 21.1 months), than placebo among ctDNA-positive patients. Full IMvigor011 phase 3 trial results and Research Summary: nej.md/3WIRtEg

26.12.2025 14:23 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Targeting STING to generate therapeutic anti-tumor immunity Fahey et al. review the effects of cGAS-STING signaling in tumor cells and different cells of the tumor immune microenvironment, and discuss how these insights can inform the design of next-generation...

www.cell.com/cancer-cell/...

24.12.2025 21:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Fig 2. Constraints related to the patient, the pharmacy, and the outpatient infusion centers to be taken into account when concentrating outpatient ICI administrations in a stipulated time window in the morning. ICI, immune checkpoint inhibitor.

Pharmacy constraints: physiochemical stability, risk of waste. Patient: distance home-hospital, diurnal preference. Day unit: priority rankings, long multi drug regimens.

Fig 2. Constraints related to the patient, the pharmacy, and the outpatient infusion centers to be taken into account when concentrating outpatient ICI administrations in a stipulated time window in the morning. ICI, immune checkpoint inhibitor. Pharmacy constraints: physiochemical stability, risk of waste. Patient: distance home-hospital, diurnal preference. Day unit: priority rankings, long multi drug regimens.

Proposed Action

We propose the following approaches to make early ToDA of ICI feasible in daily routine practice:
β€’	
ASSESS: establish a nurse-led telephone assessment on the eve of ICI administration with full blood work-up available to confirm clinical and biologic permissiveness to ICI treatment;
β€’	
AVOID (as far as possible and according to the habits of each center): do not schedule medical consultation and ICI treatment on the same day to reduce risks of delays in treatment administration (prefer teleconsultations the day before treatment for patients living far from the center);
β€’	
ALWAYS administer ICI first when in combination with IV chemotherapy or other agents, unless reverse sequencing is recommended;
β€’	
ALLOCATE: prioritize two or three ICI mornings per week and save the remaining two or three mornings for long-term combination treatments not including ICIs;
β€’	
ANTICIPATE: whenever possible, cytotoxic reconstruction units could prepare ICIs in the evening of the eve so that they are ready to be administered early on the following morning.

Proposed Action We propose the following approaches to make early ToDA of ICI feasible in daily routine practice: β€’ ASSESS: establish a nurse-led telephone assessment on the eve of ICI administration with full blood work-up available to confirm clinical and biologic permissiveness to ICI treatment; β€’ AVOID (as far as possible and according to the habits of each center): do not schedule medical consultation and ICI treatment on the same day to reduce risks of delays in treatment administration (prefer teleconsultations the day before treatment for patients living far from the center); β€’ ALWAYS administer ICI first when in combination with IV chemotherapy or other agents, unless reverse sequencing is recommended; β€’ ALLOCATE: prioritize two or three ICI mornings per week and save the remaining two or three mornings for long-term combination treatments not including ICIs; β€’ ANTICIPATE: whenever possible, cytotoxic reconstruction units could prepare ICIs in the evening of the eve so that they are ready to be administered early on the following morning.

πŸŒ… Several studies have suggested checkpoint inhibitors dosed AM may be assoc w/ improved outcomes- but strong risk of confounding.

Out now in #JCOOP: review of literature & discussion of how practices could actually implement this. Suspect will be very dependent on local AM traffic!

21.12.2025 17:39 πŸ‘ 3 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Targeting phagocytosis checkpoints for cancer immunotherapy - Nature Reviews Cancer Macrophages can eliminate cancer cells through phagocytosis, which is tightly regulated through inhibition and activation of various phagocytic receptors. In this Review, Veillette and colleagues outline how targeting these phagocytic checkpoints could be harnessed therapeutically, address therapeutic efficacy concerns, and propose strategies to enhance therapeutic outcomes in future clinical applications.

#Review πŸ•―οΈπŸ•―οΈπŸ•―οΈ
The ability of #macrophages to eliminate cancer cells is controlled by phagocytic checkpoints. Veillette&Co discuss targeting these checkpoints for cancer therapy and outline strategies to address therapeutic efficacy concerns.
πŸ“–β¬‡οΈ

15.12.2025 16:30 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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LLM use in scholarly writing poses a provenance problem - Nature Machine Intelligence Nature Machine Intelligence - LLM use in scholarly writing poses a provenance problem

www.nature.com/articles/s42...

14.12.2025 15:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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China’s Center for Drug Evaluation Grants Breakthrough Therapy Designation to Ivonescimab in TNBC | OncLive Ivonescimab plus chemotherapy has received breakthrough therapy designation as first-line therapy in patients with triple-negative breast cancer.

www.onclive.com/view/china-s...

19.11.2025 03:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Linking tumour angiogenesis and tumour immunity - Nature Reviews Immunology Tumour-associated blood vessels are abnormal in structure and function, and this can limit immune cell infiltration into tumours and contribute to the immunosuppressive tumour microenvironment. This R...

Review: Linking tumour angiogenesis and tumour immunity

16.11.2025 17:22 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
P21-positive senescent stromal cells promote prostate cancer immune suppression and progression that can be reversed by senolytic therapy Abstract. Cellular senescence is a well-established tumor-suppressive cell cycle arrest program. However, chronic inflammation through the senescence-associated secretory phenotype (SASP) can alternat...

How can senescent cells, which are damaged and growth arrested, both block tumor initiation as well as fuel its growth? A recent study published in Cancer Discovery @aacrjournals.bsky.social from Lin Zhou in the lab uncovered some new insights into this puzzle.
aacrjournals.org/cancerdiscov...

29.10.2025 14:40 πŸ‘ 17 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
Rethinking Cancer Drug Development through Tumor-Agnostic Precision Medicine Summary:. Tumor-agnostic therapies represent a revolutionary shift from century-old anatomic classifications to molecular-driven cancer treatment, in which therapeutic decisions are based on what driv...

aacrjournals.org/cancerdiscov...

20.10.2025 17:21 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Metabolites as agents and targets for cancer immunotherapy Nature Reviews Drug Discovery - Tumour cells undergo profound changes in their metabolism, but targeting these metabolic pathways requires understanding of the impact on immune cells as well as...

For readers interested in cancer therapies, this Review in the October issue discusses how metabolic modulators and dietary nutrients can improve the anticancer immune response and overcome drug resistance mechanisms
rdcu.be/eLS8A
www.nature.com/articles/s41...

20.10.2025 14:47 πŸ‘ 3 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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πŸš€ NY-CURES Launch β€” Championing State-Wide Investment in Science! πŸš€

Our new coalition advocates for sustained public support of New York’s vibrant biomedical research ecosystem β€” creating cures, economic gains & strengthening communities.

Sign up. Stay informed. Join the movement: www.nycures.org/

04.09.2025 16:32 πŸ‘ 47 πŸ” 55 πŸ’¬ 4 πŸ“Œ 6
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Targeting metabolic dysfunction of CD8 T cells and natural killer cells in cancer - Nature Reviews Drug Discovery CD8 T cells and natural killer (NK) cells play a key role in cancer immunosurveillance. However, their anticancer activity is rapidly diminished in the tumour microenvironment, associated with a decli...

www.nature.com/articles/s41...

11.09.2025 18:41 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Targeting the peripheral neural-tumour microenvironment for cancer therapy - Nature Reviews Drug Discovery Targeting the interactions between neurons, cancer cells and other elements in the tumour microenvironment represents a potential paradigm shift in cancer treatment. This Review article provides an ov...

Review: Targeting the peripheral neural-tumour microenvironment for cancer therapy

07.09.2025 15:48 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Endothelial-like cancer-associated fibroblasts facilitate pancreatic cancer metastasis via vasculogenic mimicry and paracrine signalling Background Cancer-associated fibroblasts (CAFs) are highly heterogeneous in the progression of pancreatic ductal adenocarcinoma (PDAC) and vasculogenic mimicry (VM) refers to a phenomenon in which can...

Endothelial-like cancer-associated fibroblasts facilitate pancreatic cancer metastasis via vasculogenic mimicry and paracrine signalling πŸ§ͺ #PancreaticCancer gut.bmj.com/content/74/9...

04.09.2025 14:18 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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here is our detailed schematic!

22.08.2025 19:43 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Isolation and Ex Vivo Testing of CD8+ T-Cell Division and Activation Using Mouse Splenocytes This protocol describes an ex vivo co-culture method to assess CD8+ T-cell activation, proliferation, and cytotoxic potential using bulk splenocytes isolated from immunocompetent mice. Mouse splenocyt...

Happy to share our @bio-protocol.bsky.social describing an ex vivo method to measure CD8+ T-cell function. This was used in our recent papers in @emboreports.org (2025) and Molecular Cancer Therapeutics (2024).

Thanks to Melissa Dolan for leading this effort - Congratulations to the whole team!

22.08.2025 19:43 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 1
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TYK2 inhibition enhances Treg differentiation and function while preventing Th1 and Th17 differentiation
@cp-cellrepmed.bsky.social
@mklevings.bsky.social
cell.com/cell-reports...

19.08.2025 20:30 πŸ‘ 12 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0
Sustained Macrophage Reprogramming Is Required for CD8+ T cell–Dependent Long-Term Tumor Eradication Tumor-associated macrophages typically support tumor growth but can be reprogrammed to an antitumor phenotype. The authors show that repeated administration of tumor-associated macrophage–targeting tr...

aacrjournals.org/cancerimmuno...

19.08.2025 19:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It’s out!!!!! We hope our review on aging, immunity, and cancer is helpful.

Such a rewarding group effort led by Melissa Dolan, with Kendra Libby, Alison Ringle, and @vangalenlab.bsky.social

So grateful to @gabriellebrewer.bsky.social @natrevcancer.nature.com for her efforts and support

14.08.2025 13:17 πŸ‘ 29 πŸ” 11 πŸ’¬ 0 πŸ“Œ 2
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Delving into LLM-assisted writing in biomedical publications through excess vocabulary Large language models (LLMs) like ChatGPT can generate and revise text with human-level performance. These models come with clear limitations, can produce inaccurate information, and reinforce existing biases.

The appearance of large language models caused a drastic shift in the vocabulary of academic writing, according to an analysis in #ScienceAdvances of more than 15 million biomedical abstracts published from 2010 to 2024.

Learn more:

10.08.2025 14:07 πŸ‘ 87 πŸ” 31 πŸ’¬ 3 πŸ“Œ 8
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Frontiers | Editorial: Immune modulation and angiogenesis in regenerative and developmental processes The immune system plays a pivotal role not only in host defense and inflammation but also in tissue development, regeneration, and repair. Similarly, angioge...

Editorial: Immune modulation and angiogenesis in regenerative and developmental processes.

10.08.2025 01:59 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0