Bioprintaus avaa ovet tehokkaampaan diabeteksen hoitoon

A recent study released by researchers from Pohang University of Science and Technology (POSTECH) opens the door for more effective diabetes research and treatment. The new approach leverages bioprinting to recreate pancreatic islet maturation. This development has the potential to help scientists gain a deeper understanding of the complexities of diabetes and save millions of lives.

Mitä on diabetes

Diabetes on krooninen terveysongelma, jolle on ominaista kohonnut verensokeri (glukoosi). Tämä johtuu joko siitä, että haima ei tuota riittävästi insuliinia – hormonia, joka auttaa siirtämään glukoosia verenkierrosta soluihin – tai siitä, että kehon solut eivät reagoi insuliiniin asianmukaisesti. Glukoosi on elintärkeä energianlähde keholle, ja insuliini näyttelee keskeistä roolia sen tasojen säätelyssä.

Kun tämä järjestelmä häiriintyy, glukoosi kerääntyy verenkiertoon sen sijaan, että solut käyttäisivät sitä tehokkaasti. Ajan myötä jatkuvasti korkea verensokeri voi johtaa vakaviin komplikaatioihin, mukaan lukien hermojen, sydämen, munuaisten, silmien ja verisuonten vauriot.

Maailmanlaajuisesti diabetes on kasvava huolenaihe. Kansainvälisen diabeteksen liiton (International Diabetes Federation) mukaan noin 10,5 % maailman aikuisväestöstä elää jonkinlaisen diabeteksen kanssa. Yhdysvalloissa Yhdysvaltain tautikeskusten (CDC) arvioiden mukaan noin 38,1 miljoonaa ihmistä – tai noin 11,6 % väestöstä – on diabetesta. Diabeteksen kehittymisen todennäköisyys kasvaa iän myötä, ja esiintyvyys on korkeampi kehittyneissä maissa, vaikka se nouseekin nopeasti kehittyvissä maissa.

Diabetesta on useita tyyppejä, mutta kaksi yleisintä ovat tyypin 1 ja tyypin 2 diabetes.

Tyypin 1 diabetes

Tyypin 1 diabetes on autoimmuunisairaus, jossa kehon immuunijärjestelmä hyökkää vahingossa ja tuhoaa haiman insuliinia tuottavat beetasolut. Tämän seurauksena keho tuottaa hyvin vähän tai ei lainkaan insuliinia, eikä se pysty säätelemään verensokeritasoja luonnollisesti. Tämä aiheuttaa glukoosin kertymisen verenkiertoon.

Tyypin 1 diabetes diagnosoidaan usein lapsilla ja nuorilla aikuisilla, minkä vuoksi sitä on perinteisesti kutsuttu “nuorten diabeteksiksi”. Se voi kuitenkin kehittyä missä tahansa iässä. Tyypin 1 diabetesta sairastavien on elinikäisesti käytettävä päivittäistä insuliinihoitoa, sillä parannuskeinoa ei tällä hetkellä ole. Tämä diabeteksen muoto kattaa noin 5–10 % kaikista diagnosoiduista diabetestapauksista.

Tyypin 2 diabetes

Tyypin 2 diabetes on maailman yleisin diabeteksen muoto. Se ilmenee, kun keho tulee vastustuskykyiseksi insuliinille tai kun haima ei tuota riittävästi insuliinia kehon tarpeisiin. Toisin kuin tyypin 1, joka on autoimmuuniperäinen, tyypin 2 liittyy pitkälti muokattaviin riskitekijöihin, kuten ylipainoon, huonoon ruokavalioon, liikunnan puutteeseen ja korkeaan verenpaineeseen – vaikka geneettinen alttiuskin vaikuttaa.

Tyypin 2 diabetes kehittyy yleensä vähitellen, usein vuosien aikana, ja se voi aluksi jäädä huomaamatta. Elämäntapamuutokset, kuten parempi ruokavalio, lisääntynyt fyysinen aktiivisuus ja painonhallinta, ovat ensimmäinen hoitolinja ja voivat merkittävästi vähentää taudin riskiä tai etenemistä. Joissakin tapauksissa suun kautta otettavat lääkkeet tai insuliinihoito voivat myös olla tarpeen.

Nykyinen tutkimus ja hoidot diabetekseen

The most common form of diabetes treatment is insulin shots or medications that make the body more sensitive to insulin. This approach has proven effective in preventing the disease from worsening. However, it requires lifelong shots, resulting in high treatment costs that never solve the cause of the ailment.

Recognizing the lack of a cure, scientists have begun attempting to recreate the conditions that allow diabetes to form. In this type of research, stem cells are used to generate pancreatic cells. These lab-grown cells allow drug manufacturers and treatment specialists to trial options without the need for a patient. As such, they are a vital component in the battle against diabetes.

Nykyisten diabeteksen hoitojen rajoitukset

Years of research have shown that it’s very difficult to recreate the environment of your pancreas in a manner that’s stable enough to utilize for research and testing. Engineers in the past noted that the lab-grown stem cell (SC)-derived pancreatic cells didn’t perform like their natural counterparts.

Researchers determined that this behavior was due to a lack of key characteristics found in the three-dimensional extracellular microenvironment and peri-vasculature of the pancreas. Thankfully, a team of innovative engineers has put forth a new approach that solves this issue, opening the door for more effective treatments.

POSTECH-tutkimuksen yleiskatsaus

The study “Bioprinttaus räätälöidyillä saareke-spesifisillä niskoilla edistämään kantasoluista johdettujen saarekkeiden kypsymist䓹 published in Nature Communications introduces a novel method of creating pancreatic islets. The strategy relies on a printing technique that promotes the functional coordination of the pancreatic islets, extracellular matrix (ECM), and vasculature.

Lähde – POSTECH

Haiman saarekkeet

Pancreatic islets are responsible for secreting insulin to keep your blood sugar levels in check. These islets are home to many endocrine hormonal cells that play a vital role in your body’s development and operations. Specifically, here you find insulin-producing β cells, glucagon-producing α cells, and somatostatin-producing δ cells.

Solukon ulkopuolinen matriisi (ECM)

Notably, the pancreatic islets sit within an Extracellular Matrix (ECM) that is packed with proteins and biomolecules that are vital to the structural and biochemical growth of your cells. As such, any disruption to the ECM can negatively affect your body’s glucose production.

Notably, research shows that your ECM is composed of only around 2% of basement membrane (BM) proteins. These proteins have been found to be crucial in glucose production where they are responsible for stabilizing the ECM-binding affinity of endocrine cells and integrin signaling.

Verisuonet

An extensive network of veins supplies blood flow to your pancreatic islets and ECM. This vasculature helps to supply the ECM with the nutrients it needs to help support the islets and their core task of secreting insulin to reduce blood sugar levels.

3D-bioprinttauksen rooli tutkimuksessa

Bioprinting is a form of 3D printing that utilizes living growing materials. It can be utilized to fabricate complex bio environments that are ideal for testing and research purposes. In this study, The engineers create bioprinting-based geometric guidance to reconstruct the spatial arrangement of natural islet peripheries.

HICA-V-alusta

The new printing strategy dubbed HICA-V is capable of creating stem cell-derived islet cells alongside vascular structures, just like those found in the body. Specifically, the system uses geometrical guidance to recreate the spatial pattern of islet peripheries. This strategy allowed engineers to recreate pancreatic conditions in a manner that allowed the islets to fully develop.

Additionally, the study details how the team bioengineered vivo-like pancreatic niches. They accomplished the task by achieving the proper combination of pancreatic tissue-specific extracellular matrix and basement membrane proteins.

PINE Bioink: Haiman ympäristön uudelleenluominen

The team needed to create a new type of bioink to accomplish their goal of recreating pancreatic islet conditions. To accomplish this task, the scientist developed a specialized bioink called PINE (Peri-islet Niche-like ECM).

Notably, this ink variant includes vital components to islet growth like an ECM complete with basement membrane proteins. Interestingly, the engineers create the ink using extracts from actual pancreatic tissue to obtain laminin and collagen IV.

Kokeelliset menettelyt ja testaus

The team created multiple tests to ensure their discovery was accurate. They begin by preparing decellularized porcine pancreatic tissue. They also utilized an aggregation process using spinner flasks to generate islet-like clusters that were very similar to natural versions.

POSTECH-tutkimuksen tulokset

The results of their testing reveal that the cells cultured within the HICA-V platform demonstrated characteristics comparable to native islets. The printed versions demonstrated increased insulin production. Additionally, the engineers were able to reproduce pathological responses seen in diabetic conditions.

The results show that the printing method can produce the structure and function of the human endocrine pancreas. It allowed the printed cells to fully develop into working islets, opening the door for advanced research and new-age treatments.

Diabeteksen hoidon hyödyt

There are several benefits that make this research a huge discovery. For one, it provides a stable and easily accessible testing option for drug manufacturers and healthcare professionals seeking to monitor the effectiveness of their treatments.

Another huge benefit is the ability to create using a 3D printer. This approach is more stable and easier to access. Additionally, it provides duplicatable results that can be shared instantaneously with other researchers seeking to create islets for their studies.

Tutkimusryhmä

The Diabetes treatment report was led by POSTECH Professor Jonah Jang. Additionally,  Myungji Kim,  Seungyeun Cho, Dong Gyu Hwang, In Kyong Shim, Song Cheol Kim, Jiwon Jang, and Jinah Jang assisted in the research and writing of the paper.

Notably, the project received funding from various sources including a grant funded by the Ministry of Science and ICT, the Korean Fund for Regenerative Medicine funded by the Ministry of Science and ICT, the Ministry of Health and Welfare, and the Alchemist Project funded By the Ministry of Trade, Industry & Energy.

Sovellukset ja aikataulut

There are several applications for this technology. For one, this research and enhanced 3D printing method will act as a valuable tool for diabetes research and drug development. It will allow engineers to test their drugs on living cells to ensure that they have a firm understanding of all side effects and effectiveness.

This maneuver should accelerate anti-diabetic drug development and open the door for pancreatic islet transplants in patients who have no insulin production. These cells will also help scientists better understand how outside factors like pollution and the environment affect your pancreatic islets.

Given the severe medical conditions that diabetes can lead to, there is considerable support to drive this procedure through all testing phases and to the public as soon as possible. As such, you could see this technology introduced within the next 5 years.

Yritykset, jotka johtavat innovaatiota diabeteksen hoidoissa

Treating diabetes is big business and drug manufacturers continue to invest heavily into creating better options. From companies offering at-home testing to those providing drugs and treatments, there are a lot of players in the diabetic healthcare arena. Here’s one company that has managed to carve a niche.

Halozyme Therapeutics, Inc

Halozyme Therapeutics (HALO ) entered the market in 1998 seeking to introduce novel drug delivery methods. The company is based out of San Diego, CA. It went public in 2004 and has since grown to become a dominant force in the biotech sector.

Halozyme Therapeutics offers a variety of products including new-age disruptive drug delivery methods. Its top products include best-in-class auto-injector devices. These units are derived from patented recombinant human hyaluronidase enzyme (rHuPH20) that enables the delivery of injectable biologics directly from an easy-to-use device.

Those seeking to gain access to the healthcare sectors should do more research into Halozyme Therapeutics. The company has a proven record for success and has seen considerable growth over the last five years. Currently, HALO is on an upswing with many analysts predicting this trend to increase as the company continues to refine and introduce new products.

Uusimmat tiedot Halozyme Therapeuticsista

Valoisampi tulevaisuus diabeteksen hoitoon

When you examine the importance of this research, it’s easy to see that there are a lot of people who could utilize these findings to achieve relief from their conditions. Diabetes is a serious disease, and as the environment and eating habits continue to worsen, the number of those suffering from this ailment will increase. As such, this study offers a rare opportunity to gain a better understanding of how to prevent and eliminate diabetes in the future.

Learn about other cool HealthTec now.

Viitteet:

^{1. Kim, M., Cho, S., Hwang, D.G. et al. Bioprinttaus räätälöidyillä saareke-spesifisillä niskoilla edistämään kantasoluista johdettujen saarekkeiden kypsymistä. Nat Commun 16, 1430 (2025). https://doi.org/10.1038/s41467-025-56665-5}