A subtle, pale blue wave flows horizontally across a white background.
A subtle, pale blue wave flows horizontally across a white background.
A subtle, pale blue wave flows horizontally across a white background.

Training the Immune System to Fight Cancer

We are building a faster, more efficient way to develop Individualized Immunotherapies that target each patient’s tumor.

A 3D rendering of a cell vesicle loaded with antigens.
A 3D rendering of a cell vesicle loaded with antigens.

Cancer is not one disease

Each person is different, each tumor is different, heterogeneous, and constantly evolving.

0M+
0M+

people are currently
living with cancer.

people are currently living with cancer.

0M+
0M+

people will die from
cancer this year.

people will die from cancer this year.

#0
#0

cause of death
worldwide.

cause of death worldwide.

The next frontier

Training the immune system to prevent cancer from coming back.

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A circular gradient with a soft lilac center fading to edges.

Our Solution

One delivery platform.
Multiple cancer vaccine opportunities.

One delivery platform.
Multiple cancer vaccine
opportunities.

One delivery platform.
Multiple cancer vaccine opportunities.

  • Engineered
    biological vesicles

  • Loaded with the
    patient's own tumor

  • Captures the
    full tumor identity

  • No sequencing
    required

  • Delivery to the right place
    in the right cells

Engineered
biological vesicles

Loaded with the patient's own tumor

Captures the
full tumor identity

No sequencing
required

Delivery
to the right place in the right cells

OncoSpheres

A new class of individualized cancer vaccines.

Speed

9x faster manufacturing.

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Speed

9x faster manufacturing.

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2

3

Speed

9x faster manufacturing.

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2

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Compared to current mRNA cancer vaccines.

Compared to current mRNA cancer vaccines.

Individualized
immunotherapy platform

Individualized immunotherapy platform

Individualized immunotherapy platform

We harness the power of the patient’s own tumor. OncoSpheres™ capture the full antigenic profile and deliver into immune cells, training the immune system to recognize and destroy cancer.

No sequencing. Full tumor information. Manufactured in less than 7 days.

We harness the power of the patient’s own tumor. OncoSpheres™ capture the full antigenic profile and deliver into immune cells, training the immune system to recognize and destroy cancer.

No sequencing. Full tumor information. Manufactured in less than 7 days.

Hover to see more

A small vial labeled "OncoSpheres™ Cancer Vaccine" by SphereBio.

Durable, broad protection

for patients with the toughest cancers.

for patients with the toughest cancers.

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A circular gradient with a soft teal center fading to edges.

Click to see more

Click to see more

How It Works

Mechanism of Action

From tumor to immune activation, in one integrated system.

  • Step 1

    Tumor Extraction

    Tumor tissue is collected during surgery and processed.

  • Step 2

    Vesicle Engineering (SP1)

    We engineer biological vesicles for optimal intracellular delivery.

  • Step 3

    Antigen Loading

    Vesicles are loaded with the full spectrum of tumor signals through a proprietary method.

  • Step 4

    Uptake by APCs

    OncoSpheres™ are naturally taken up by antigen-presenting cells.

  • Step 5

    Cytosolic Delivery

    Vesicles fuse and release antigens directly into the cytosol.

  • Step 6

    CD8+ T Cell Activation

    Full antigen presentation activates CD8+ T cells to kill cancer cells.

  • Step 1

    Tumor Extraction

    Tumor tissue is collected during surgery and processed.

  • Step 2

    Vesicle Engineering (SP1)

    We engineer biological vesicles for optimal intracellular delivery.

  • Step 3

    Antigen Loading

    Vesicles are loaded with the full spectrum of tumor signals through a proprietary method.

  • Step 4

    Uptake by APCs

    OncoSpheres™ are naturally taken up by antigen-presenting cells.

  • Step 5

    Cytosolic Delivery

    Vesicles fuse and release antigens directly into the cytosol.

  • Step 6

    CD8+ T Cell Activation

    Full antigen presentation activates CD8+ T cells to kill cancer cells.

  • Step 1

    Tumor Extraction

    Tumor tissue is collected during surgery and processed.

  • Step 2

    Vesicle Engineering (SP1)

    We engineer biological vesicles for optimal intracellular delivery.

  • Step 3

    Antigen Loading

    Vesicles are loaded with the tumor signals through our proprietary method.

  • Step 4

    Uptake by APCs

    OncoSpheres™ are naturally taken up by antigen-presenting cells.

  • Step 5

    Cytosolic Delivery

    Vesicles fuse and release antigens directly into the cytosol.

  • Step 6

    CD8+ T Cell Activation

    Full antigen presentation activates CD8+ T cells to kill cancer cells.

A circular gradient with a soft teal center fading to edges.
A healthcare professional in a purple uniform gently holds a patient's hand, conveying support and compassion in a clinical setting.
A healthcare professional in a purple uniform gently holds a patient's hand, conveying support and compassion in a clinical setting.

Mission & Vision

Revolutionizing
the fight against cancer through
individualized medicine

Revolutionizing
the fight against cancer through individualized medicine

At SphereBio, we develop more effective and less toxic therapies by delivering therapeutic cargo directly into cells and training the immune system to fight cancer. We leverage biotechnology, synthetic virology, and AI to address diseases that have long been underserved.

We envision a world where every patient receives treatment as unique as their disease, built on precision, science, and care.

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A circular gradient with a soft teal center fading to edges.

Our Story

We founded SphereBio
to develop more powerful
immunological therapies for cancer and beyond.

We founded SphereBio
to develop more powerful
immunological therapies for cancer and beyond.

We founded SphereBio
to develop more powerful immunological
therapies for cancer and beyond.

SphereBio began in a company builder program, when Julieta Porta, the company’s COO, met molecular biologist Dr. Guido Molina, who was working on vaccines designed to drive cellular immune responses. Soon after, physician and bioinformatician Dr. Martin Guerrero joined through a mutual connection, finding new ways to apply the technology specifically to cancer.

Three founders smiling warmly, standing together against a plain background.

World-class team

Traction

Validated across Science,
Manufacturing & Partnerships

Real progress. Real partnerships. Real-world validation.

Real progress. Real partnerships. Real-world validation.

  1. Proof of Concept

    We activated tumor-killing immune cells with 300x more potency than conventional approaches.

    Achieved

  2. Industrial Manufacturing (SUM™)

    30,000 nanoparticles per cell per day. Proprietary and patented method that works identically in lab and at pharma scale.

    Achieved

  3. PCT Patent Filed

    International PCT application filed — protection in 150+ countries. Covers SUM™ method and therapeutic use of OncoSpheres™.

    Filed

  4. AWS AI Partnership

    Exclusive partnership for molecular design and modeling with 90% reduction in processing time.

    Active

  5. Presented at ASCO

    Featured at ASCO — the world’s leading oncology conference.

    Done

  1. Proof of Concept

    We activated tumor-killing immune cells with 300x more potency than conventional approaches.

    Achieved

  2. Industrial Manufacturing (SUM™)
  3. PCT Patent Filed
  4. AWS AI Partnership
  5. Presented at ASCO
  1. Proof of Concept

    We activated tumor-killing immune cells with 300x more potency than conventional approaches.

    Achieved

  2. Industrial Manufacturing (SUM™)

    30,000 nanoparticles per cell per day. Proprietary and patented method that works identically in lab and at pharma scale.

    Achieved

  3. PCT Patent Filed

    International PCT application filed — protection in 150+ countries. Covers SUM™ method and therapeutic use of OncoSpheres™.

    Filed

  4. AWS AI Partnership

    Exclusive partnership for molecular design and modeling with 90% reduction in processing time.

    Active

  5. Presented at ASCO

    Featured at ASCO — the world’s leading oncology conference.

    Done

Supported by World-Class Programs

Supported by World-Class Programs

Backed by leading entrepreneurs, physicians, and industry experts.

  • MIT Healthcare Innovation logo.
  • Idea 2 by MIT linQ logo.
  • Mit linQ logo.
  • Start-up Chile by Corfo logo.
  • Start global logo.
  • Latam to Tulsa logo.
  • Cancer Tech Accelerator logo.
  • Business Angels Club logo.
  • Gridx logo.
  • Endeavor logo.
  • University of St. Gallen logo.
  • CAB Cámara Argentina de Biotecnología.
  • Wise, Women in stem entrepreneurship logo.
  • FIJE, Federación Iberoamericana de Jóvenes Empresarios logo

Press releases

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