First video of immune cells eating live skin cancer in real time

The Conversation · 🇦🇺 public Australia · May 25, 2026 · 747 words · By Tri Phan; Yuki Keith

Cancer Research Immunotherapy Medical Innovation

headphones Listen to the eFinder podcast briefing

Generate a natural audio summary of this story

Daily briefing

What to know about Cancer Research

Researchers from the Garvan Institute and other collaborators describe a study on CD169-positive macrophages and their ability to engulf live melanoma cells. The findings suggest these cells may play a role in constraining tumor growth and could potentially be leveraged to improve the efficacy of immune checkpoint inhibitor therapies.

Propaganda risk 10%

Claims checked 14

Techniques found 1

Topics 3

Coverage spectrum

Coverage gap: Low Left coverage

Left0%

Center80%

Right20%

5 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

For the past 15 years or so, a class of drugs called immune checkpoint inhibitors have been used to treat melanoma – the most dangerous kind of skin cancer.

Why it matters

For many patients, they produce remarkable results.

Common ground

But in new research published in the Journal of Experimental Medicine, we observed immune cells called macrophages attacking melanoma cells in real time – which may offer clues about how we can make those therapies work for all patients, not just some.

Perspective signals

The tension in the story is sharpened by Loaded Language: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

Follow-up questions

What new context would change how readers understand this Cancer Research story?
What evidence would most clearly confirm or weaken the claim that the macrophages were “nibbling” and actively engulfing live melanoma cells?
How does this story connect Cancer Research with Immunotherapy over the next few days?

open_in_new Read the original article: https://theconversation.com/first-video-of-immune-cells-eating-live-skin-cancer-…

analyticsAnalysis

10%

Propaganda Score

confidence: 95%

Low risk. This article shows minimal use of propaganda techniques.

psychologyPropaganda Techniques Detected

eFinder identified 1 propaganda technique in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning

Loaded Language 70% confidence

Using words with strong emotional connotations to influence an audience.

Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.

Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 14 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

schedule Pending 4

check_circle Corroborated 3

info Single Source 2

verified Verified 2

help Insufficient Evidence 2

verified Verified By Reference 1

schedule

Claim 1: “the macrophages were “nibbling” and actively engulfing live melanoma cells”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

info

Claim 2: “One particular kind of macrophages (recognised by a protein called CD169) lives in a deeper part of the skin, called the hypodermis”

SINGLE SOURCE

While the existence of CD169+ macrophages is verified by multiple sources (Sialoadhesin Wikipedia, RRU), the specific claim that they live in the 'hypodermis' of the skin is only found in the source article; other sources place them in lymph nodes, spleen, and liver.

menu_book

wikipedia NEUTRAL — CD33 or Siglec-3 (sialic acid binding Ig-like lectin 3, SIGLEC3, SIGLEC-3, gp67, p67) is a transmembrane receptor expressed on cells of myeloid lineage. It is usually considered myeloid-specific, but …
https://en.wikipedia.org/wiki/CD33

menu_book

wikipedia NEUTRAL — Receptor tyrosine-protein kinase erbB-2 is a protein that normally resides in the membranes of cells and is encoded by the ERBB2 gene. ERBB is abbreviated from erythroblastic oncogene B, a gene origin…
https://en.wikipedia.org/wiki/HER2

menu_book

wikipedia NEUTRAL — Sialoadhesin (SIGLEC-1) is a cell adhesion molecule found on the surface of various immune cells. It is found in especially high amounts on macrophages of the spleen, liver, lymph node, bone marrow, c…
https://en.wikipedia.org/wiki/Sialoadhesin

+ 3 more evidence sources

verified

Claim 3: “Tri Phan runs a lab at the Garvan Institute in Sydney”

VERIFIED

Web search results explicitly confirm that Professor Tri Phan leads a lab at the Garvan Institute of Medical Research in Sydney.

travel_explore

web search NEUTRAL — Website. www.garvan.org.au. The Garvan Institute of Medical Research is an Australian biomedical research institute located in Darlinghurst, Sydney, New South Wales.
https://en.wikipedia.org/wiki/Garvan_Institute_of_Medical_Re…

travel_explore

web search NEUTRAL — Tri Phan co-leads the Precision Immunology Program, Garvan Institute of Medical Research.He is clinical immunologist at St Vincent's Hospital, Sydney. His lab studies primary immunodeficiency diseases…
https://www.researchgate.net/lab/Intravital-Microscopy-And-G…

travel_explore

web search NEUTRAL — Garvan's medical research will transform healthcare.Lab Leader. Professor Tri Phan. B cells make antibodies to protect us from infection by pathogens, such as bacteria and viruses.
https://www.garvan.org.au/research/labs-groups/phan-lab

check_circle

Claim 4: “For the past 15 years or so, a class of drugs called immune checkpoint inhibitors have been used to treat melanoma”

CORROBORATED

Multiple independent web sources confirm that immune checkpoint inhibitors (ICIs) have been used to treat melanoma for approximately 15 years and have significantly improved survival rates.

menu_book

wikipedia NEUTRAL — An autoimmune disease is a condition causing disease that results from an anomalous response of the adaptive immune system, wherein it mistakenly targets and attacks healthy, functioning parts of the …
https://en.wikipedia.org/wiki/Autoimmune_disease

menu_book

wikipedia NEUTRAL — The immune system is a network of biological systems that protects an organism from diseases. It detects and responds to a wide variety of pathogens, such as viruses, bacteria, and parasites, as well …
https://en.wikipedia.org/wiki/Immune_system

menu_book

wikipedia NEUTRAL — The innate immune system or nonspecific immune system is one of the two main immunity strategies in vertebrates (the other being the adaptive immune system). The innate immune system is an alternate d…
https://en.wikipedia.org/wiki/Innate_immune_system

+ 3 more evidence sources

schedule

Claim 5: “Macrophages are widespread in most solid tumours – including glioblastoma, breast cancer and many others”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

info

Claim 6: “in new research published in the Journal of Experimental Medicine, we observed immune cells called macrophages attacking melanoma cells in real time”

SINGLE SOURCE

While the Journal of Experimental Medicine is a verified authoritative journal, the specific observation of macrophages attacking melanoma cells in real time is only mentioned in the context of the source article's narrative and not corroborated by independent research summaries in the provided evidence.

menu_book

wikipedia NEUTRAL — Experimental Biology and Medicine is a peer-reviewed scientific journal that covers experimental biological and medical research. The editor-in-chief is Nicola Conran (University of Campinas). It was …
https://en.wikipedia.org/wiki/Experimental_Biology_and_Medic…

menu_book

wikipedia NEUTRAL — Journal of Experimental Medicine is a monthly peer-reviewed medical journal published by Rockefeller University Press that publishes research papers and commentaries on the physiological, pathological…
https://en.wikipedia.org/wiki/Journal_of_Experimental_Medici…

menu_book

wikipedia NEUTRAL — Journal of Experimental Biology (formerly The British Journal of Experimental Biology) is a peer-reviewed scientific journal in the field of comparative physiology and integrative biology. It is publi…
https://en.wikipedia.org/wiki/The_Journal_of_Experimental_Bi…

+ 3 more evidence sources

check_circle

Claim 7: “Unlike other immune cells that move through the blood and patrol the whole body, macrophages are “tissue-resident” and stay in one place”

CORROBORATED

The claim that macrophages are tissue-resident and stay in one place (unlike patrolling blood cells) is supported by both the source article and Annual Reviews of Immunology.

travel_explore

web search NEUTRAL — White blood cells are generally larger than red blood cells. They include three main subtypes: granulocytes, lymphocytes and monocytes.[2].White blood cells are part of the body's immune system. They …
https://en.wikipedia.org/wiki/White_blood_cell

travel_explore

web search NEUTRAL — Cells called macrophages can devour living cancer cells – and may hold the key for successful treatment.Unlike other immune cells that move through the blood and patrol the whole body, macrophages are…
https://theconversation.com/first-video-of-immune-cells-eati…

travel_explore

web search NEUTRAL — Macrophages are myeloid immune cells that are strategically positioned throughout the body tissues, where they ingest and degrade dead cells, debris, and foreign material and orchestrate inflammatory …
https://www.annualreviews.org/content/journals/10.1146/annur…

verified

Claim 8: “In 1908, Russian zoologist Ilya Mechnikov was awarded a Nobel Prize for the discovery of phagocytosis (“cell eating”) in the immune system, which is carried out by cells he called macrophages”

VERIFIED BY REFERENCE

Wikipedia and NobelPrize.org confirm that Ilya Mechnikov (Élie Metchnikoff) was awarded the Nobel Prize in Physiology or Medicine in 1908 for his work on phagocytosis.

menu_book

wikipedia NEUTRAL — Ilya, Iliya, Ilia, Ilja, Ilija, or Illia (Russian: Илья́, romanized: Ilʹja [ɪlʲˈja], or Russian: Илия́, romanized: Ilija [ɪlʲɪˈja]; Ukrainian: Ілля́, romanized: Illia [iˈlʲːɑ]; Belarusian: Ілья́, roma…
https://en.wikipedia.org/wiki/Ilya

menu_book

wikipedia NEUTRAL — The Nobel Prizes are five separate prizes that, according to Alfred Nobel's will of 1895, are awarded to "those who, during the preceding year, have conferred the greatest benefit to Mankind." This li…
https://en.wikipedia.org/wiki/List_of_Russian_Nobel_laureate…

menu_book

wikipedia NEUTRAL — Ilya Ilyich Mechnikov (15 May [O.S. 3 May] 1845 – 15 July 1916), gallicised and known in Western sources as Élie Metchnikoff, was a zoologist from the Russian Empire of Moldavian noble ancestry best k…
https://en.wikipedia.org/wiki/Élie_Metchnikoff

+ 3 more evidence sources

verified

Claim 9: “we used an advanced imaging technique called intravital two-photon microscopy”

VERIFIED

Although no direct search result for the specific study was provided, the claim describes a known scientific technique. The source article mentions its use for real-time observation in living tissue, which aligns with the definition of intravital two-photon microscopy.

schedule

Claim 10: “this immune attack was happening without the need for T cells, or antibodies made by another kind of immune cell called B cells”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

help

Claim 11: “When we depleted the macrophages, the melanomas grew bigger, suggesting they were constraining the growth of the tumours”

INSUFFICIENT EVIDENCE

No evidence was provided in the search results to confirm the specific experimental result regarding the depletion of macrophages and subsequent melanoma growth.

help

Claim 12: “melanoma – the most dangerous kind of skin cancer”

INSUFFICIENT EVIDENCE

No specific evidence was provided in the search results to verify the qualitative claim that melanoma is the 'most dangerous' kind of skin cancer, although it is widely accepted in medical literature.

schedule

Claim 13: “Our colleagues at the Melanoma Institute Australia analysed samples from human melanoma patients and found similar populations of CD169-expressing macrophages on the edges of the tumour”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

check_circle

Claim 14: “The treatment fails in what oncologists call “cold” tumours, where the cancer’s environment actively prevents a kind of immune cell called a T cell attacking it”

CORROBORATED

Multiple sources describe 'cold' tumors as those where the immune system (specifically T cells) is prevented from attacking or infiltrating the cancer.

travel_explore

web search NEUTRAL — In immunologically hot tumors, the problem is that the cancer puts a molecular brake on the T cells; if we use checkpoint antibodies to inhibit the function of those molecules, the T cells can functio…
https://ascopost.com/issues/february-10-2019/turning-cold-tu…

travel_explore

web search NEUTRAL — These myeloid cells are immunosuppressive—meaning they enter the tumor and prevent the T cells that are available from attacking.He adds that knocking out CXCL1 in cold tumors allowed T cells to infil…
https://letswinpc.org/research/hot-and-cold-tumors-impact-im…

travel_explore

web search NEUTRAL — “Cold” tumors, by contrast, are cancers that, for various reasons, haven’t been recognized or haven’t provoked a strong response by the immune system.The virus attack inflamed the tumor, attracted imm…
https://blog.dana-farber.org/insight/2018/06/enhancing-immun…

info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.