Researchers from Austria, Canada, and Switzerland reported a clinical case where a man needing a kidney transplant successfully underwent the procedure despite having antibodies against all available donors. This operation was made possible by pretreatment with bispecific monoclonal antibodies, which are used for multiple myeloma therapy. The details of this case were published in The New England Journal of Medicine.
Sensitization to human leukocyte antigens (HLA), the major histocompatibility complex, is the process of forming and circulating antibodies against any tissue from another person. This condition can arise after pregnancy, blood transfusion, or organ transplantation itself and creates a serious, sometimes insurmountable obstacle to transplanting any solid organ, even when using desensitization methods and careful donor matching. Existing treatment methods do not always yield stable and effective results.
The drug Tecilizumab belongs to the class of bispecific monoclonal antibodies. It functions by recruiting T-lymphocytes. These antibodies are capable of simultaneously binding to the CD3 T-cell receptor and the B-cell maturation antigen (BCMA), thereby prompting T-cells to attack mature B-cells and plasma cells responsible for antibody production.
Martina Schatzl from the University of Vienna and her colleagues presented the story of a 37-year-old man who suffered from end-stage renal failure and was on hemodialysis. He had already undergone two unsuccessful kidney transplant attempts and suffered from HLA sensitization, awaiting the next transplant for 12.5 years. His panel reactive antibody (PRA) level reached 100 percent, and the proportion of donors compatible with the AB0 system was zero percent, making finding a suitable donor theoretically impossible. The researchers decided to use Tecilizumab to prepare the patient for the third operation.
The patient received Tecilizumab for 31 weeks. The treatment led to a significant reduction in HLA antibodies and rapid depletion of naive and transitional B-cells, as well as memory B-cells, plasmablasts, and plasma cells in both blood and bone marrow. This depletion process was accompanied by hypogammaglobulinemia, which was compensated for by intravenous immunoglobulin administration. A decrease in AB0 reactivity and a reduction in xenoreactive antibodies to galactose-α-1,3-galactose (alpha-gal) were noted. As a result, the frequency of compatible donors increased to 1.35 percent. Soon a donor kidney was found for the man, but the surgery was postponed for technical reasons. A month later, the patient was involved in an accident on an electric scooter, which required stopping the Tecilizumab course.
Four months after the accident, another suitable organ was found and successfully transplanted. Vascular inflammation developed in the new organ, but it was not accompanied by donor-specific antibodies or complement activation product C4d. The inflammation was related to molecular markers and a slightly increased amount of non-cellular donor DNA (66 copies per milliliter of blood), and it was managed with daratumumab therapy targeting anti-CD38. Tecilizumab treatment caused a mild cytokine release syndrome, transient cytomegalovirus and BK virus viremia, mild urinary tract infections, and an increase in torque tenovirus (TTV) levels, indicating weakened overall immunity.
The presented case demonstrates the high efficacy of BCMA-targeted HLA desensitization for organ transplantation preparation. However, sustained destruction of B-lymphocytes and plasma cells can lead to decreased immunity, prolonged dependence on intravenous immunoglobulin, and slowed immune system recovery. These issues may be exacerbated when combining this therapy with desensitization targeting the D-cell antigen CD20. Further research is needed to determine maximum benefit, as well as to clarify optimal dosages and monitoring methods for safety.
Previously, German scientists published information on the successful experimental application of Tecilizumab for two patients with severe chronic autoimmune polyneuropathy. These patients showed disappearance of autoantibodies, reduced nerve tissue damage, and significant improvement in motor function.
A 45-year-old man was admitted to the hospital with complaints of progressive pain and swelling in his right shoulder, which had persisted for two months. The man, who worked on a construction site, had experienced intermittent pain in his right shoulder joint for a long time. Examination revealed swelling of the right shoulder and restricted mobility in that joint. Radiological examination showed complete destruction of the head and an unattached diaphysis of the right humerus. MRI revealed destructive arthropathy of the shoulder joint with the presence of voluminous effusion and freely floating calcified fragments, as well as tendon ruptures throughout the thickness of the supraspinatus, subscapularis, and infraspinatus tendons. John Waller from the Johns Hopkins School of Medicine and Ayşe Yülger from Hacettepe University in Ankara shared this information in The New England Journal of Medicine.
In recent years, more and more smartphones have been released using silicon-carbon batteries. This technology gained popularity after being adopted by Chinese manufacturers such as Honor, Oppo, and Xiaomi. Samsung has now joined this group, utilizing silicon-carbon in the batteries of its Galaxy Z Fold 8 and Z Fold 8 Ultra models.
According to Engadget, such batteries can possess significantly greater capacity compared to traditional lithium-ion ones. Some devices equipped with this technology are capable of operating for up to two days on a single charge.
The battery consists of three main components: an anode, a cathode, and an electrolyte located between them. When the battery is fully charged, all electrons remain in the anode, which slowly releases them toward the cathode. The flow of electrons through the electrolyte causes a series of electrical and chemical reactions that release energy. In standard smartphones, multiple additions of electrons can be made to the anode. However, over time, the stored energy decreases because the electrolyte loses materials necessary for the reaction.
Lithium-ion batteries are popular due to their lightness, high energy density, and ability to withstand many charge and discharge cycles before degradation begins. Typically, a lithium-ion battery includes graphite powder as the anode, lithium phosphate powder as the cathode, and ethylene carbonate as the electrolyte.
Calling these cells silicon-carbon batteries is somewhat inaccurate: they still use lithium material in the cathode. Furthermore, current physics does not allow for the creation of an anode entirely from silicon-carbon. In fact, only a small percentage of silicon-carbon is mixed with existing graphite in these cells.
Samsung positions itself as the largest smartphone manufacturer to implement silicon-carbon cells. The company stated that it does not aim to produce cells with very high capacity, as seen in some Chinese devices. The new Z Fold line of phones uses a small amount of silicon to reduce battery size and, consequently, the entire hardware. In regulatory documents submitted to the European Union, Samsung reported that the lifespan of these cells will be only 1200 charge cycles, which is a noticeable reduction compared to the 2000 cycles claimed for the previous generation.
The advantages include:
The disadvantages include:
Snapchat, YouTube, and LinkedIn have joined a growing movement, including Substack, to tackle the spread of fake texts, images, and videos created entirely by artificial intelligence tools. This material, known in the industry as "AI slop" or "AI junk," has rapidly proliferated due to the easy access to programs that can generate everything from complete articles to hyper-realistic videos in seconds.
Snap, the owner of Snapchat, has decided to stop promoting videos generated exclusively by AI in its popular Spotlight feature, now prioritizing "authentic, human-produced content." The company clarified that it does not prohibit the use of the technology; materials that use AI only as an aid in editing or enhancement will remain visible in the feed. However, Snap admitted that fully automated content is often repetitive, low quality, and misaligned with what the community wants to consume.
Recent research on user behavior, as reported by the BBC, confirms this dissatisfaction. An additional study revealed a worrying consequence: the greater the exposure to fake AI content on social media, the lower users' trust in the veracity of any other online publication becomes.
This scenario reflects a widespread discomfort. Chris Best, CEO and co-founder of the newsletter platform Substack, expressed his frustration by presenting a tool for readers to identify algorithmically created texts, stating: "It is becoming increasingly difficult to know what is real on the internet."
Best cited data indicating that up to 40% of texts published on social media today are false or automated by AI. The executive warned that "platforms that reward fake content will create a race to the bottom."
On LinkedIn, which focuses on the corporate world, the response was equally vigorous. The network implemented a feature that allows users to report posts or comments suspected of being made by bots. According to Hari Srinivasan, LinkedIn's product director, combating "AI junk" has become a top priority. In recent months, the platform has blocked billions of automated comment attempts and intercepted hundreds of thousands of spam daily. Additionally, LinkedIn removed an automatic shortcut that suggested users "improve text with AI" before posting, reverting to offering only a basic grammar checking tool.
YouTube has also adjusted its monetization rules to discourage the filling of the platform with what it calls "inauthentic content." Investigations conducted over the past year exposed the existence of hundreds of channels operated exclusively by AI, many of which reached millions of subscribers and generated significant profits.
To control the growth of these "content farms," the Google-owned video platform defined three criteria for videos that will lose the right to receive advertising revenue: productions that are generic, repetitive, or based on standardized templates. Matt Halprin, head of YouTube's Trust and Safety division, emphasized in an interview that while artificial intelligence can be a valuable creative ally, it is being used abusively for the massive and low-quality production of videos. He concluded that "The same technology that allows creating amazing things also enables the creation of disposable material aimed only at 'mining' views. And it is exactly this type of content that we do not want on our network."
If your current internet connection relies on a traditional router, it might be time to upgrade your equipment. Mesh technology is designed to eliminate dead zones and ensure stable internet access throughout the entire home. This review presents three suitable options available at a discount on Amazon.
The TP-Link Deco M4 kit offers a practical solution for covering large areas with a quality signal. With support for the 5 GHz frequency and gigabit ports, it combines high speed and reliability in an easily configurable Mesh system via a mobile application. This kit is ideal for medium-sized homes experiencing issues with instability or connection drops.
TWIBI FORCE AX is a domestic alternative that utilizes the Wi-Fi 6 (AX) standard to increase speed and efficiency, especially when many devices are connected simultaneously. Mesh technology ensures uniform coverage throughout the house without interruptions when moving between rooms, which is a significant advantage for those who work from home or frequently stream video.
The Deco E3 is one of the most affordable options in the Mesh sphere from TP-Link. The two-device kit adequately covers medium-sized homes, and the AC1200 standard fully satisfies everyday needs such as browsing, streaming, and video calls without glitches. Its compact design allows the device to be discreetly installed in any interior.
Since these special offers may end at any moment, prompt action is recommended. Users are advised to choose the product that best suits their needs to ensure a significantly more reliable signal at home.
